[U-Boot] [PATCH v4 0/4] apf27: add support of armadeus apf27

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* [U-Boot] [PATCH v4 0/4] apf27: add support of armadeus apf27
@ 2013-07-28 20:16 Philippe Reynes
  2013-07-28 20:16 ` [U-Boot] [PATCH v4 1/4] mx27: add missing constant for mx27 Philippe Reynes
                   ` (3 more replies)
  0 siblings, 4 replies; 13+ messages in thread
From: Philippe Reynes @ 2013-07-28 20:16 UTC (permalink / raw)
  To: u-boot

Difference between v4 and v3:
- use standard start.S
- use part to know u-boot offset
- fix some comments format issue

Difference between v3 and v2:
- rebase on imx branch
- merge support and spl patch
- clean code of apf27_gpio_init
- clean code of start.S

Difference between v1 and v2:
- use spl instead of nand_spl
- use gpio api
- remove use of useless CONFIG_SYS
- remove use of config.mk
- remove dead code

Philippe Reynes (4):
  mx27: add missing constant for mx27
  apf27: add support for the armadeus APF27 board
  apf27: add FPGA support for the apf27 board
  Update u-boot-nand.bin to be used with spl

 MAINTAINERS                               |    5 +
 Makefile                                  |    6 +
 arch/arm/cpu/arm926ejs/mx27/asm-offsets.c |    5 +
 arch/arm/include/asm/arch-mx27/imx-regs.h |    2 +-
 board/armadeus/apf27/Makefile             |   54 +++
 board/armadeus/apf27/apf27.c              |  374 ++++++++++++++++++++
 board/armadeus/apf27/apf27.h              |  450 ++++++++++++++++++++++++
 board/armadeus/apf27/fpga.c               |  250 ++++++++++++++
 board/armadeus/apf27/fpga.h               |   39 +++
 board/armadeus/apf27/splboot.S            |  528 +++++++++++++++++++++++++++++
 boards.cfg                                |    1 +
 include/configs/apf27.h                   |  446 ++++++++++++++++++++++++
 12 files changed, 2159 insertions(+), 1 deletions(-)
 create mode 100644 board/armadeus/apf27/Makefile
 create mode 100644 board/armadeus/apf27/apf27.c
 create mode 100644 board/armadeus/apf27/apf27.h
 create mode 100644 board/armadeus/apf27/fpga.c
 create mode 100644 board/armadeus/apf27/fpga.h
 create mode 100644 board/armadeus/apf27/splboot.S
 create mode 100644 include/configs/apf27.h

-- 
1.7.4.4

^ permalink raw reply	[flat|nested] 13+ messages in thread

* [U-Boot] [PATCH v4 1/4] mx27: add missing constant for mx27
  2013-07-28 20:16 [U-Boot] [PATCH v4 0/4] apf27: add support of armadeus apf27 Philippe Reynes
@ 2013-07-28 20:16 ` Philippe Reynes
  2013-07-29  8:17   ` Stefano Babic
  2013-07-28 20:16 ` [U-Boot] [PATCH v4 2/4] apf27: add support for the armadeus APF27 board Philippe Reynes
                   ` (2 subsequent siblings)
  3 siblings, 1 reply; 13+ messages in thread
From: Philippe Reynes @ 2013-07-28 20:16 UTC (permalink / raw)
  To: u-boot

Add some missing constant (chip select, ...)

Signed-off-by: Philippe Reynes <tremyfr@yahoo.fr>
Signed-off-by: Eric Jarrige <eric.jarrige@armadeus.org>
---
 arch/arm/cpu/arm926ejs/mx27/asm-offsets.c |    5 +++++
 arch/arm/include/asm/arch-mx27/imx-regs.h |    2 +-
 2 files changed, 6 insertions(+), 1 deletions(-)

diff --git a/arch/arm/cpu/arm926ejs/mx27/asm-offsets.c b/arch/arm/cpu/arm926ejs/mx27/asm-offsets.c
index f3a8d7b..215c562 100644
--- a/arch/arm/cpu/arm926ejs/mx27/asm-offsets.c
+++ b/arch/arm/cpu/arm926ejs/mx27/asm-offsets.c
@@ -41,5 +41,10 @@ int main(void)
 	DEFINE(ESDCFG1_ROF, offsetof(struct esdramc_regs, esdcfg1));
 	DEFINE(ESDMISC_ROF, offsetof(struct esdramc_regs, esdmisc));
 
+	DEFINE(GPCR, IMX_SYSTEM_CTL_BASE +
+		offsetof(struct system_control_regs, gpcr));
+	DEFINE(FMCR, IMX_SYSTEM_CTL_BASE +
+		offsetof(struct system_control_regs, fmcr));
+
 	return 0;
 }
diff --git a/arch/arm/include/asm/arch-mx27/imx-regs.h b/arch/arm/include/asm/arch-mx27/imx-regs.h
index 8867e9f..51257a8 100644
--- a/arch/arm/include/asm/arch-mx27/imx-regs.h
+++ b/arch/arm/include/asm/arch-mx27/imx-regs.h
@@ -185,7 +185,7 @@ struct iim_regs {
 	struct fuse_bank {
 		u32 fuse_regs[0x20];
 		u32 fuse_rsvd[0xe0];
-	} bank[1];
+	} bank[2];
 };
 
 struct fuse_bank0_regs {
-- 
1.7.4.4

^ permalink raw reply related	[flat|nested] 13+ messages in thread

* [U-Boot] [PATCH v4 1/4] mx27: add missing constant for mx27
  2013-07-28 20:16 ` [U-Boot] [PATCH v4 1/4] mx27: add missing constant for mx27 Philippe Reynes
@ 2013-07-29  8:17   ` Stefano Babic
  0 siblings, 0 replies; 13+ messages in thread
From: Stefano Babic @ 2013-07-29  8:17 UTC (permalink / raw)
  To: u-boot

On 28/07/2013 22:16, Philippe Reynes wrote:
> Add some missing constant (chip select, ...)
> 
> Signed-off-by: Philippe Reynes <tremyfr@yahoo.fr>
> Signed-off-by: Eric Jarrige <eric.jarrige@armadeus.org>
> ---
>  arch/arm/cpu/arm926ejs/mx27/asm-offsets.c |    5 +++++
>  arch/arm/include/asm/arch-mx27/imx-regs.h |    2 +-
>  2 files changed, 6 insertions(+), 1 deletions(-)
> 
> diff --git a/arch/arm/cpu/arm926ejs/mx27/asm-offsets.c b/arch/arm/cpu/arm926ejs/mx27/asm-offsets.c
> index f3a8d7b..215c562 100644
> --- a/arch/arm/cpu/arm926ejs/mx27/asm-offsets.c
> +++ b/arch/arm/cpu/arm926ejs/mx27/asm-offsets.c
> @@ -41,5 +41,10 @@ int main(void)
>  	DEFINE(ESDCFG1_ROF, offsetof(struct esdramc_regs, esdcfg1));
>  	DEFINE(ESDMISC_ROF, offsetof(struct esdramc_regs, esdmisc));
>  
> +	DEFINE(GPCR, IMX_SYSTEM_CTL_BASE +
> +		offsetof(struct system_control_regs, gpcr));
> +	DEFINE(FMCR, IMX_SYSTEM_CTL_BASE +
> +		offsetof(struct system_control_regs, fmcr));
> +
>  	return 0;
>  }
> diff --git a/arch/arm/include/asm/arch-mx27/imx-regs.h b/arch/arm/include/asm/arch-mx27/imx-regs.h
> index 8867e9f..51257a8 100644
> --- a/arch/arm/include/asm/arch-mx27/imx-regs.h
> +++ b/arch/arm/include/asm/arch-mx27/imx-regs.h
> @@ -185,7 +185,7 @@ struct iim_regs {
>  	struct fuse_bank {
>  		u32 fuse_regs[0x20];
>  		u32 fuse_rsvd[0xe0];
> -	} bank[1];
> +	} bank[2];
>  };
>  
>  struct fuse_bank0_regs {
> 

Acked-by: Stefano Babic <sbabic@denx.de>

Best regards,
Stefano Babic

-- 
=====================================================================
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: +49-8142-66989-53 Fax: +49-8142-66989-80 Email: sbabic at denx.de
=====================================================================

^ permalink raw reply	[flat|nested] 13+ messages in thread

* [U-Boot] [PATCH v4 2/4] apf27: add support for the armadeus APF27 board
  2013-07-28 20:16 [U-Boot] [PATCH v4 0/4] apf27: add support of armadeus apf27 Philippe Reynes
  2013-07-28 20:16 ` [U-Boot] [PATCH v4 1/4] mx27: add missing constant for mx27 Philippe Reynes
@ 2013-07-28 20:16 ` Philippe Reynes
  2013-07-29  9:43   ` Stefano Babic
  2013-07-28 20:16 ` [U-Boot] [PATCH v4 3/4] apf27: add FPGA support for the apf27 board Philippe Reynes
  2013-07-28 20:16 ` [U-Boot] [PATCH v4 4/4] Update u-boot-nand.bin to be used with spl Philippe Reynes
  3 siblings, 1 reply; 13+ messages in thread
From: Philippe Reynes @ 2013-07-28 20:16 UTC (permalink / raw)
  To: u-boot

Signed-off-by: Philippe Reynes <tremyfr@yahoo.fr>
Signed-off-by: Eric Jarrige <eric.jarrige@armadeus.org>
Signed-off-by: Nicolas Colombain <nicolas.colombain@armadeus.com>
---
 MAINTAINERS                    |    5 +
 board/armadeus/apf27/Makefile  |   51 ++++
 board/armadeus/apf27/apf27.c   |  356 +++++++++++++++++++++++++++
 board/armadeus/apf27/apf27.h   |  450 ++++++++++++++++++++++++++++++++++
 board/armadeus/apf27/splboot.S |  528 ++++++++++++++++++++++++++++++++++++++++
 boards.cfg                     |    1 +
 include/configs/apf27.h        |  446 +++++++++++++++++++++++++++++++++
 7 files changed, 1837 insertions(+), 0 deletions(-)
 create mode 100644 board/armadeus/apf27/Makefile
 create mode 100644 board/armadeus/apf27/apf27.c
 create mode 100644 board/armadeus/apf27/apf27.h
 create mode 100644 board/armadeus/apf27/splboot.S
 create mode 100644 include/configs/apf27.h

diff --git a/MAINTAINERS b/MAINTAINERS
index 081cf96..d88624e 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -717,6 +717,11 @@ Ilko Iliev <iliev@ronetix.at>
 	PM9263		AT91SAM9263
 	PM9G45		ARM926EJS (AT91SAM9G45 SoC)
 
+Eric Jarrige <eric.jarrige@armadeus.org>
+Philippe Reynes <tremyfr@yahoo.fr>
+
+	apf27		ARM926EJS (i.MX27 SoC)
+
 Michael Jones <michael.jones@matrix-vision.de>
 
 	omap3_mvblx	ARM ARMV7 (OMAP3xx SoC)
diff --git a/board/armadeus/apf27/Makefile b/board/armadeus/apf27/Makefile
new file mode 100644
index 0000000..08d5d8d
--- /dev/null
+++ b/board/armadeus/apf27/Makefile
@@ -0,0 +1,51 @@
+#
+# (C) Copyright 2000-2004
+# Wolfgang Denk, DENX Software Engineering, wd at denx.de.
+# (C) Copyright 2012
+# Eric Jarrige <eric.jarrige@armadeus.org>
+#
+# See file CREDITS for list of people who contributed to this
+# project.
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation; either version 2 of
+# the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+# MA 02111-1307 USA
+#
+
+include $(TOPDIR)/config.mk
+
+LIB	= $(obj)lib$(BOARD).o
+
+ifndef CONFIG_SPL_BUILD
+COBJS	:= apf27.o
+endif
+
+ifdef CONFIG_SPL_BUILD
+SOBJS  := splboot.o
+endif
+
+SRCS	:= $(COBJS:.o=.c) $(SOBJS:.o=.S)
+OBJS	:= $(addprefix $(obj),$(COBJS))
+SOBJS	:= $(addprefix $(obj),$(SOBJS))
+
+$(LIB):	$(obj).depend $(OBJS) $(SOBJS)
+	$(call cmd_link_o_target, $(OBJS) $(SOBJS))
+
+#########################################################################
+
+include $(SRCTREE)/rules.mk
+
+sinclude $(obj).depend
+
+#########################################################################
diff --git a/board/armadeus/apf27/apf27.c b/board/armadeus/apf27/apf27.c
new file mode 100644
index 0000000..f64c71a
--- /dev/null
+++ b/board/armadeus/apf27/apf27.c
@@ -0,0 +1,356 @@
+/*
+ * Copyright (C) 2007 Sascha Hauer, Pengutronix
+ * Copyright (C) 2008-2012 Eric Jarrige <eric.jarrige@armadeus.org>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ *
+ */
+
+#include <common.h>
+#include <environment.h>
+#include <jffs2/jffs2.h>
+#include <nand.h>
+#include <netdev.h>
+#include <asm/io.h>
+#include <asm/arch/imx-regs.h>
+#include <asm/arch/gpio.h>
+#include <asm/errno.h>
+#include "apf27.h"
+#include "crc.h"
+
+DECLARE_GLOBAL_DATA_PTR;
+
+static inline void wait(void)
+{
+	int i;
+
+	for (i = 0; i < 0x10000; i++)
+		asm volatile ("nop");
+}
+
+/*
+ * Fuse bank 1 row 8 is "reserved for future use" and therefore available for
+ * customer use. The APF27 board uses this fuse to store the board revision:
+ * 0: initial board revision
+ * 1: first revision - Presence of the second RAM chip on the board is blown in
+ *     fuse bank 1 row 9  bit 0 - No hardware change
+ * N: to be defined
+ */
+static u32 get_board_rev(void)
+{
+	struct iim_regs *iim = (struct iim_regs *)IMX_IIM_BASE;
+
+	return readl(&iim->bank[1].fuse_regs[8]);
+}
+
+/*
+ * Fuse bank 1 row 9 is "reserved for future use" and therefore available for
+ * customer use. The APF27 board revision 1 uses the bit 0 to permanently store
+ * the presence of the second RAM chip
+ * 0: AFP27 with 1 RAM of 64 MiB
+ * 1: AFP27 with 2 RAM chips of 64 MiB each (128MB)
+ */
+static int get_num_ram_bank(void)
+{
+	struct iim_regs *iim = (struct iim_regs *)IMX_IIM_BASE;
+	int nr_dram_banks = 1;
+
+	if ((get_board_rev() > 0) && (CONFIG_NR_DRAM_BANKS > 1))
+		nr_dram_banks += readl(&iim->bank[1].fuse_regs[9]) & 0x01;
+	else
+		nr_dram_banks = CONFIG_NR_DRAM_POPULATED;
+
+	return nr_dram_banks;
+}
+
+static void apf27_port_init(int port, u32 gpio_dr, u32 ocr1, u32 ocr2,
+			    u32 iconfa1, u32 iconfa2, u32 iconfb1, u32 iconfb2,
+			    u32 icr1, u32 icr2, u32 imr, u32 gpio_dir, u32 gpr,
+			    u32 puen, u32 gius)
+{
+	struct gpio_port_regs *regs = (struct gpio_port_regs *)IMX_GPIO_BASE;
+
+	writel(gpio_dr,   &regs->port[port].gpio_dr);
+	writel(ocr1,      &regs->port[port].ocr1);
+	writel(ocr2,      &regs->port[port].ocr2);
+	writel(iconfa1,   &regs->port[port].iconfa1);
+	writel(iconfa2,   &regs->port[port].iconfa2);
+	writel(iconfb1,   &regs->port[port].iconfb1);
+	writel(iconfb2,   &regs->port[port].iconfb2);
+	writel(icr1,      &regs->port[port].icr1);
+	writel(icr2,      &regs->port[port].icr2);
+	writel(imr,       &regs->port[port].imr);
+	writel(gpio_dir,  &regs->port[port].gpio_dir);
+	writel(gpr,       &regs->port[port].gpr);
+	writel(puen,      &regs->port[port].puen);
+	writel(gius,      &regs->port[port].gius);
+}
+
+#define APF27_PORT_INIT(n) apf27_port_init(PORT##n, ACFG_DR_##n##_VAL,	  \
+	ACFG_OCR1_##n##_VAL, ACFG_OCR2_##n##_VAL, ACFG_ICFA1_##n##_VAL,	  \
+	ACFG_ICFA2_##n##_VAL, ACFG_ICFB1_##n##_VAL, ACFG_ICFB2_##n##_VAL, \
+	ACFG_ICR1_##n##_VAL, ACFG_ICR2_##n##_VAL, ACFG_IMR_##n##_VAL,	  \
+	ACFG_DDIR_##n##_VAL, ACFG_GPR_##n##_VAL, ACFG_PUEN_##n##_VAL,	  \
+	ACFG_GIUS_##n##_VAL)
+
+void apf27_gpio_init(void)
+{
+	APF27_PORT_INIT(A);
+	APF27_PORT_INIT(B);
+	APF27_PORT_INIT(C);
+	APF27_PORT_INIT(D);
+	APF27_PORT_INIT(E);
+	APF27_PORT_INIT(F);
+}
+
+static int apf27_devices_init(void)
+{
+	struct gpio_port_regs *regs = (struct gpio_port_regs *)IMX_GPIO_BASE;
+	int i;
+	unsigned int mode[] = {
+		PD0_AIN_FEC_TXD0,
+		PD1_AIN_FEC_TXD1,
+		PD2_AIN_FEC_TXD2,
+		PD3_AIN_FEC_TXD3,
+		PD4_AOUT_FEC_RX_ER,
+		PD5_AOUT_FEC_RXD1,
+		PD6_AOUT_FEC_RXD2,
+		PD7_AOUT_FEC_RXD3,
+		PD8_AF_FEC_MDIO,
+		PD9_AIN_FEC_MDC | GPIO_PUEN,
+		PD10_AOUT_FEC_CRS,
+		PD11_AOUT_FEC_TX_CLK,
+		PD12_AOUT_FEC_RXD0,
+		PD13_AOUT_FEC_RX_DV,
+		PD14_AOUT_FEC_CLR,
+		PD15_AOUT_FEC_COL,
+		PD16_AIN_FEC_TX_ER,
+		PF23_AIN_FEC_TX_EN,
+		PE12_PF_UART1_TXD,
+		PE13_PF_UART1_RXD,
+		PC5_PF_I2C2_DATA,
+		PC6_PF_I2C2_CLK,
+		PD17_PF_I2C_DATA,
+		PD18_PF_I2C_CLK,
+	};
+
+	for (i = 0; i < ARRAY_SIZE(mode); i++)
+		imx_gpio_mode(mode[i]);
+
+#ifdef CONFIG_MXC_MMC
+	mx27_sd2_init_pins();
+	imx_gpio_mode((GPIO_PORTF | GPIO_OUT | GPIO_PUEN | GPIO_GPIO | 16));
+	writel(readl(&regs->port[PORTF].gpio_dr) | (1 << 16),
+	       &regs->port[PORTF].gpio_dr);
+#endif
+#if defined(CONFIG_I2C_MXC) && defined(CONFIG_I2C_MULTI_BUS)
+	bus_i2c_init(IMX_I2C1_BASE, CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE,
+		     NULL, NULL);
+	bus_i2c_init(IMX_I2C2_BASE, CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE,
+		     NULL, NULL);
+#endif
+	return 0;
+}
+
+static void board_setup_aipi(void)
+{
+	struct aipi_regs *aipi1 = (struct aipi_regs *)IMX_AIPI1_BASE;
+	struct aipi_regs *aipi2 = (struct aipi_regs *)IMX_AIPI2_BASE;
+	struct system_control_regs *system =
+		(struct system_control_regs *)IMX_SYSTEM_CTL_BASE;
+	u32 gpcr;
+
+	/* setup AIPI1 and AIPI2 */
+	writel(ACFG_AIPI1_PSR0_VAL, &aipi1->psr0);
+	writel(ACFG_AIPI1_PSR1_VAL, &aipi1->psr1);
+	writel(ACFG_AIPI2_PSR0_VAL, &aipi2->psr0);
+	writel(ACFG_AIPI2_PSR1_VAL, &aipi2->psr1);
+
+	/* Change SDRAM signal strengh */
+	gpcr = readl(&system->gpcr);
+	gpcr |= ACFG_GPCR_VAL;
+	writel(gpcr, &system->gpcr);
+}
+
+static void board_setup_csx(void)
+{
+	struct weim_regs *weim = (struct weim_regs *)IMX_WEIM_BASE;
+
+	writel(ACFG_CS0U_VAL, &weim->cs0u);
+	writel(ACFG_CS0L_VAL, &weim->cs0l);
+	writel(ACFG_CS0A_VAL, &weim->cs0a);
+
+	writel(ACFG_CS1U_VAL, &weim->cs1u);
+	writel(ACFG_CS1L_VAL, &weim->cs1l);
+	writel(ACFG_CS1A_VAL, &weim->cs1a);
+
+	writel(ACFG_CS2U_VAL, &weim->cs2u);
+	writel(ACFG_CS2L_VAL, &weim->cs2l);
+	writel(ACFG_CS2A_VAL, &weim->cs2a);
+
+	writel(ACFG_CS3U_VAL, &weim->cs3u);
+	writel(ACFG_CS3L_VAL, &weim->cs3l);
+	writel(ACFG_CS3A_VAL, &weim->cs3a);
+
+	writel(ACFG_CS4U_VAL, &weim->cs4u);
+	writel(ACFG_CS4L_VAL, &weim->cs4l);
+	writel(ACFG_CS4A_VAL, &weim->cs4a);
+
+	writel(ACFG_CS5U_VAL, &weim->cs5u);
+	writel(ACFG_CS5L_VAL, &weim->cs5l);
+	writel(ACFG_CS5A_VAL, &weim->cs5a);
+
+	writel(ACFG_EIM_VAL, &weim->eim);
+}
+
+static void board_setup_port(void)
+{
+	struct system_control_regs *system =
+		(struct system_control_regs *)IMX_SYSTEM_CTL_BASE;
+
+	writel(ACFG_FMCR_VAL, &system->fmcr);
+}
+
+static void board_setup_clock(void)
+{
+	struct pll_regs *pll = (struct pll_regs *)IMX_PLL_BASE;
+	u32 cscr;
+
+	/* disable MPLL/SPLL first */
+	cscr = readl(&pll->cscr);
+	cscr &= ~(CSCR_MPEN | CSCR_SPEN);
+	writel(cscr, &pll->cscr);
+
+	/* pll clock initialization */
+	writel(ACFG_MPCTL0_VAL, &pll->mpctl0);
+	writel(ACFG_SPCTL0_VAL, &pll->spctl0);
+
+	cscr = ACFG_CSCR_VAL | CSCR_MPLL_RESTART | CSCR_SPLL_RESTART;
+	writel(cscr, &pll->cscr);
+
+	/* add some delay here */
+	wait();
+
+	/* peripheral clock divider */
+	writel(ACFG_PCDR0_VAL, &pll->pcdr0);
+	writel(ACFG_PCDR1_VAL, &pll->pcdr1);
+
+	/* Configure PCCR0 and PCCR1 */
+	writel(ACFG_PCCR0_VAL, &pll->pccr0);
+	writel(ACFG_PCCR1_VAL, &pll->pccr1);
+}
+
+int board_early_init_f(void)
+{
+	board_setup_aipi();
+	board_setup_csx();
+	board_setup_port();
+	board_setup_clock();
+
+	return 0;
+}
+
+int board_init(void)
+{
+	gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100;
+
+	apf27_gpio_init();
+	apf27_devices_init();
+
+	return 0;
+}
+
+int dram_init(void)
+{
+	/* dram_init must store complete ramsize in gd->ram_size */
+	if (get_num_ram_bank() > 1) {
+		gd->ram_size = PHYS_SDRAM_2 - CONFIG_SYS_SDRAM_BASE
+			+ get_ram_size((void *)PHYS_SDRAM_2, PHYS_SDRAM_2_SIZE);
+	} else {
+		gd->ram_size = get_ram_size((void *)PHYS_SDRAM_1,
+			PHYS_SDRAM_1_SIZE);
+	}
+
+	return 0;
+}
+
+void dram_init_banksize(void)
+{
+	phys_size_t ramsize = gd->ram_size;
+
+	if (get_num_ram_bank() > 1)
+		ramsize -= PHYS_SDRAM_2 - CONFIG_SYS_SDRAM_BASE;
+
+	gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
+	gd->bd->bi_dram[0].size = ramsize;
+	gd->bd->bi_dram[1].start = PHYS_SDRAM_2;
+	if (get_num_ram_bank() > 1)
+		gd->bd->bi_dram[1].size = ramsize;
+	else
+		gd->bd->bi_dram[1].size = 0;
+	gd->ram_size = gd->bd->bi_dram[0].size + gd->bd->bi_dram[1].size;
+}
+
+/*
+ * Miscellaneous initialisation
+ */
+int misc_init_r(void)
+{
+	char *s;
+	u_char *firmware_buffer = (u_char *)(CONFIG_SYS_LOAD_ADDR +
+					      CONFIG_SYS_MONITOR_LEN);
+	size_t size	= 0;
+	size_t offset	= -1;
+#if defined(CONFIG_FPGA)
+	char *autoload = getenv("firmware_autoload");
+#endif
+	u8 pnum;
+	struct mtd_device *dev;
+	struct part_info *part;
+
+	/* detect compatibility issue of environment version */
+	s = getenv("env_version");
+	if ((NULL == s) || (0 != strcmp(s, CONFIG_ENV_VERSION))) {
+		char *const vars[] = {"flash_reset_env"};
+		printf("*** Warning - Environment version change suggests: ");
+		printf("run flash_reset_env; reset\n");
+		set_default_vars(1, vars);
+	}
+
+	/* Unlock whole flash but U-Boot */
+	if (mtdparts_init() == 0) {
+		if (find_dev_and_part("u-boot",
+				      &dev, &pnum, &part) == 0) {
+			offset = part->size;
+		}
+	}
+
+	if (nand_unlock(&nand_info[0], offset, nand_info[0].size - offset, 0))
+		printf("NAND flash lock/unlocked failed\n");
+
+
+	return 0;
+}
+
+int checkboard(void)
+{
+	printf("Board: Armadeus APF27 revision %d\n", get_board_rev());
+	return 0;
+}
+
+void lowlevel_init(void)
+{
+}
diff --git a/board/armadeus/apf27/apf27.h b/board/armadeus/apf27/apf27.h
new file mode 100644
index 0000000..b0a4473
--- /dev/null
+++ b/board/armadeus/apf27/apf27.h
@@ -0,0 +1,450 @@
+#ifndef __APF27_H
+#define __APF27_H
+
+/* FPGA program pin configuration */
+#define ACFG_FPGA_PWR	(GPIO_PORTF | 19)	/* FPGA prog pin  */
+#define ACFG_FPGA_PRG	(GPIO_PORTF | 11)	/* FPGA prog pin  */
+#define ACFG_FPGA_CLK	(GPIO_PORTF | 15)	/* FPGA clk pin   */
+#define ACFG_FPGA_RDATA	0xD6000000		/* FPGA data addr  */
+#define ACFG_FPGA_WDATA	0xD6000000		/* FPGA data addr  */
+#define ACFG_FPGA_INIT	(GPIO_PORTF | 12)	/* FPGA init pin  */
+#define ACFG_FPGA_DONE	(GPIO_PORTF | 9)	/* FPGA done pin  */
+#define ACFG_FPGA_RW	(GPIO_PORTF | 21)	/* FPGA done pin  */
+#define ACFG_FPGA_CS	(GPIO_PORTF | 22)	/* FPGA done pin  */
+#define ACFG_FPGA_SUSPEND (GPIO_PORTF | 10)	/* FPGA done pin  */
+#define ACFG_FPGA_RESET	(GPIO_PORTF | 7)	/* FPGA done pin  */
+
+/*
+ * MPU CLOCK source before PLL
+ * ACFG_CLK_FREQ (2/3 MPLL clock or ext 266 MHZ)
+ */
+#define ACFG_MPCTL0_VAL		0x01EF15D5	/* 399.000 MHz */
+#define ACFG_MPCTL1_VAL		0
+#define CONFIG_MPLL_FREQ	399
+
+#define ACFG_CLK_FREQ	(CONFIG_MPLL_FREQ*2/3) /* 266 MHz */
+
+/* Serial clock source before PLL (should be named ACFG_SYSPLL_CLK_FREQ)*/
+#define ACFG_SPCTL0_VAL		0x0475206F	/* 299.99937 MHz */
+#define ACFG_SPCTL1_VAL		0
+#define CONFIG_SPLL_FREQ	300		/* MHz */
+
+/* ARM bus frequency (have to be a CONFIG_MPLL_FREQ ratio) */
+#define CONFIG_ARM_FREQ		399	/* up to 400 MHz */
+
+/* external bus frequency (have to be a ACFG_CLK_FREQ ratio) */
+#define CONFIG_HCLK_FREQ	133	/* (ACFG_CLK_FREQ/2) */
+
+#define CONFIG_PERIF1_FREQ	16	/* 16.625 MHz UART, GPT, PWM*/
+#define CONFIG_PERIF2_FREQ	33	/* 33.25 MHz CSPI and SDHC */
+#define CONFIG_PERIF3_FREQ	33	/* 33.25 MHz LCD*/
+#define CONFIG_PERIF4_FREQ	33	/* 33.25 MHz CSI*/
+#define CONFIG_SSI1_FREQ	66	/* 66.50 MHz SSI1*/
+#define CONFIG_SSI2_FREQ	66	/* 66.50 MHz SSI2*/
+#define CONFIG_MSHC_FREQ	66	/* 66.50 MHz MSHC*/
+#define CONFIG_H264_FREQ	66	/* 66.50 MHz H264*/
+#define CONFIG_CLK0_DIV      3  /* Divide CLK0 by 4 */
+#define CONFIG_CLK0_EN       1  /* CLK0 enabled */
+
+/* external bus frequency (have to be a CONFIG_HCLK_FREQ ratio) */
+#define CONFIG_NFC_FREQ		44	/* NFC Clock up to 44 MHz wh 133MHz*/
+
+/* external serial bus frequency (have to be a CONFIG_SPLL_FREQ ratio) */
+#define CONFIG_USB_FREQ		60	/* 60 MHz */
+
+/*
+ * SDRAM
+ */
+#if (ACFG_SDRAM_MBYTE_SYZE == 64) /* micron MT46H16M32LF -6 */
+/* micron 64MB */
+#define ACFG_SDRAM_NUM_COL		9  /* 8, 9, 10 or 11
+						      column address bits */
+#define ACFG_SDRAM_NUM_ROW		13 /* 11, 12 or 13
+						      row address bits */
+#define ACFG_SDRAM_REFRESH		3  /* 0=OFF 1=2048
+						      2=4096 3=8192 refresh */
+#define ACFG_SDRAM_EXIT_PWD		25 /* ns exit power
+						      down delay */
+#define ACFG_SDRAM_W2R_DELAY		1  /* write to read
+						      cycle delay > 0 */
+#define ACFG_SDRAM_ROW_PRECHARGE_DELAY	18 /* ns */
+#define ACFG_SDRAM_TMRD_DELAY		2  /* Load mode register
+						      cycle delay 1..4 */
+#define ACFG_SDRAM_TWR_DELAY		1  /* LPDDR: 0=2ck 1=3ck;
+						      SDRAM: 0=1ck 1=2ck*/
+#define ACFG_SDRAM_RAS_DELAY		42 /* ns ACTIVE-to-PRECHARGE
+						      delay */
+#define ACFG_SDRAM_RRD_DELAY		12 /* ns ACTIVE-to-ACTIVE
+						      delay */
+#define ACFG_SDRAM_RCD_DELAY		18 /* ns Row to Column delay */
+#define ACFG_SDRAM_RC_DELAY		70 /* ns Row cycle delay (tRFC
+						      refresh to command) */
+#define ACFG_SDRAM_CLOCK_CYCLE_CL_1	0 /* ns clock cycle time
+						     estimated fo CL=1
+						     0=force 3 for lpddr */
+#define ACFG_SDRAM_PARTIAL_ARRAY_SR	0  /* 0=full 1=half 2=quater
+						      3=Eighth 4=Sixteenth */
+#define ACFG_SDRAM_DRIVE_STRENGH		0  /* 0=Full-strength 1=half
+						      2=quater 3=Eighth */
+#define ACFG_SDRAM_BURST_LENGTH		3  /* 2^N BYTES (N=0..3) */
+#define ACFG_SDRAM_SINGLE_ACCESS		0  /* 1= single access;
+						      0 = Burst mode */
+#endif
+
+#if (ACFG_SDRAM_MBYTE_SYZE == 128)
+/* micron 128MB */
+#define ACFG_SDRAM_NUM_COL		9  /* 8, 9, 10 or 11
+						      column address bits */
+#define ACFG_SDRAM_NUM_ROW		14 /* 11, 12 or 13
+						      row address bits */
+#define ACFG_SDRAM_REFRESH		3  /* 0=OFF 1=2048
+						      2=4096 3=8192 refresh */
+#define ACFG_SDRAM_EXIT_PWD		25 /* ns exit power
+						      down delay */
+#define ACFG_SDRAM_W2R_DELAY		1  /* write to read
+						      cycle delay > 0 */
+#define ACFG_SDRAM_ROW_PRECHARGE_DELAY	18 /* ns */
+#define ACFG_SDRAM_TMRD_DELAY		2  /* Load mode register
+						      cycle delay 1..4 */
+#define ACFG_SDRAM_TWR_DELAY		1  /* LPDDR: 0=2ck 1=3ck;
+						      SDRAM: 0=1ck 1=2ck*/
+#define ACFG_SDRAM_RAS_DELAY		42 /* ns ACTIVE-to-PRECHARGE
+						      delay */
+#define ACFG_SDRAM_RRD_DELAY		12 /* ns ACTIVE-to-ACTIVE
+						      delay */
+#define ACFG_SDRAM_RCD_DELAY		18 /* ns Row to Column delay */
+#define ACFG_SDRAM_RC_DELAY		70 /* ns Row cycle delay (tRFC
+						      refresh to command)*/
+#define ACFG_SDRAM_CLOCK_CYCLE_CL_1	0 /* ns clock cycle time
+						     estimated fo CL=1
+						     0=force 3 for lpddr*/
+#define ACFG_SDRAM_PARTIAL_ARRAY_SR	0  /* 0=full 1=half 2=quater
+						      3=Eighth 4=Sixteenth */
+#define ACFG_SDRAM_DRIVE_STRENGH		0  /* 0=Full-strength 1=half
+						      2=quater 3=Eighth */
+#define ACFG_SDRAM_BURST_LENGTH		3  /* 2^N BYTES (N=0..3) */
+#define ACFG_SDRAM_SINGLE_ACCESS		0  /* 1= single access;
+						      0 = Burst mode */
+#endif
+
+#if (ACFG_SDRAM_MBYTE_SYZE == 256)
+/* micron 256MB */
+#define ACFG_SDRAM_NUM_COL		10  /* 8, 9, 10 or 11
+						       column address bits */
+#define ACFG_SDRAM_NUM_ROW		14 /* 11, 12 or 13
+						      row address bits */
+#define ACFG_SDRAM_REFRESH		3  /* 0=OFF 1=2048
+						      2=4096 3=8192 refresh */
+#define ACFG_SDRAM_EXIT_PWD		25 /* ns exit power
+						      down delay */
+#define ACFG_SDRAM_W2R_DELAY		1  /* write to read cycle
+						      delay > 0 */
+#define ACFG_SDRAM_ROW_PRECHARGE_DELAY	18 /* ns */
+#define ACFG_SDRAM_TMRD_DELAY		2  /* Load mode register
+						      cycle delay 1..4 */
+#define ACFG_SDRAM_TWR_DELAY		1  /* LPDDR: 0=2ck 1=3ck;
+						      SDRAM: 0=1ck 1=2ck */
+#define ACFG_SDRAM_RAS_DELAY		42 /* ns ACTIVE-to-PRECHARGE
+						      delay */
+#define ACFG_SDRAM_RRD_DELAY		12 /* ns ACTIVE-to-ACTIVE
+						      delay */
+#define ACFG_SDRAM_RCD_DELAY		18 /* ns Row to Column delay */
+#define ACFG_SDRAM_RC_DELAY		70 /* ns Row cycle delay (tRFC
+						      refresh to command) */
+#define ACFG_SDRAM_CLOCK_CYCLE_CL_1	0 /* ns clock cycle time
+						     estimated fo CL=1
+						     0=force 3 for lpddr */
+#define ACFG_SDRAM_PARTIAL_ARRAY_SR	0  /* 0=full 1=half 2=quater
+						      3=Eighth 4=Sixteenth */
+#define ACFG_SDRAM_DRIVE_STRENGH		0  /* 0=Full-strength
+						      1=half
+						      2=quater
+						      3=Eighth */
+#define ACFG_SDRAM_BURST_LENGTH		3  /* 2^N BYTES (N=0..3) */
+#define ACFG_SDRAM_SINGLE_ACCESS		0  /* 1= single access;
+						      0 = Burst mode */
+#endif
+
+/*
+ * External interface
+ */
+/*
+ * CSCRxU_VAL:
+ * 31| x | x | x x |x x x x| x x | x | x  |x x x x|16
+ *   |SP |WP | BCD |  BCS  | PSZ |PME|SYNC|  DOL  |
+ *
+ * 15| x x  | x x x x x x | x | x x x x | x x x x |0
+ *   | CNC  |     WSC     |EW |   WWS   |   EDC   |
+ *
+ * CSCRxL_VAL:
+ * 31|  x x x x  | x x x x  | x x x x  | x x x x  |16
+ *   |    OEA    |   OEN    |   EBWA   |   EBWN   |
+ * 15|x x x x| x |x x x |x x x x| x | x | x  | x  | 0
+ *   |  CSA  |EBC| DSZ  |  CSN  |PSR|CRE|WRAP|CSEN|
+ *
+ * CSCRxA_VAL:
+ * 31|  x x x x  | x x x x  | x x x x  | x x x x  |16
+ *   |   EBRA    |   EBRN   |   RWA    |   RWN    |
+ * 15| x | x x |x x x|x x|x x|x x| x | x | x  | x | 0
+ *   |MUM| LAH | LBN |LBA|DWW|DCT|WWU|AGE|CNC2|FCE|
+ */
+
+/* CS0 configuration for 16 bit nor flash */
+#define ACFG_CS0U_VAL	0x0000CC03
+#define ACFG_CS0L_VAL	0xa0330D01
+#define ACFG_CS0A_VAL	0x00220800
+
+#define ACFG_CS1U_VAL	0x00000f00
+#define ACFG_CS1L_VAL	0x00000D01
+#define ACFG_CS1A_VAL	0
+
+#define ACFG_CS2U_VAL	0
+#define ACFG_CS2L_VAL	0
+#define ACFG_CS2A_VAL	0
+
+#define ACFG_CS3U_VAL	0
+#define ACFG_CS3L_VAL	0
+#define ACFG_CS3A_VAL	0
+
+#define ACFG_CS4U_VAL	0
+#define ACFG_CS4L_VAL	0
+#define ACFG_CS4A_VAL	0
+
+/* FPGA 16 bit data bus */
+#define ACFG_CS5U_VAL	0x00000600
+#define ACFG_CS5L_VAL	0x00000D01
+#define ACFG_CS5A_VAL	0
+
+#define ACFG_EIM_VAL	0x00002200
+
+
+/*
+ * FPGA specific settings
+ */
+
+/* CLKO */
+#define ACFG_CCSR_VAL 0x00000305
+/* drive strength CLKO set to 2*/
+#define ACFG_DSCR10_VAL 0x00020000
+/* drive strength A1..A12 set to 2*/
+#define ACFG_DSCR3_VAL 0x02AAAAA8
+/* drive strength ctrl*/
+#define ACFG_DSCR7_VAL 0x00020880
+/* drive strength data*/
+#define ACFG_DSCR2_VAL 0xAAAAAAAA
+
+
+/*
+ * Default configuration for GPIOs and peripherals
+ */
+#define ACFG_DDIR_A_VAL		0x00000000
+#define ACFG_OCR1_A_VAL		0x00000000
+#define ACFG_OCR2_A_VAL		0x00000000
+#define ACFG_ICFA1_A_VAL		0xFFFFFFFF
+#define ACFG_ICFA2_A_VAL		0xFFFFFFFF
+#define ACFG_ICFB1_A_VAL		0xFFFFFFFF
+#define ACFG_ICFB2_A_VAL		0xFFFFFFFF
+#define ACFG_DR_A_VAL		0x00000000
+#define ACFG_GIUS_A_VAL		0xFFFFFFFF
+#define ACFG_ICR1_A_VAL		0x00000000
+#define ACFG_ICR2_A_VAL		0x00000000
+#define ACFG_IMR_A_VAL		0x00000000
+#define ACFG_GPR_A_VAL		0x00000000
+#define ACFG_PUEN_A_VAL		0xFFFFFFFF
+
+#define ACFG_DDIR_B_VAL		0x00000000
+#define ACFG_OCR1_B_VAL		0x00000000
+#define ACFG_OCR2_B_VAL		0x00000000
+#define ACFG_ICFA1_B_VAL		0xFFFFFFFF
+#define ACFG_ICFA2_B_VAL		0xFFFFFFFF
+#define ACFG_ICFB1_B_VAL		0xFFFFFFFF
+#define ACFG_ICFB2_B_VAL		0xFFFFFFFF
+#define ACFG_DR_B_VAL		0x00000000
+#define ACFG_GIUS_B_VAL		0xFF3FFFF0
+#define ACFG_ICR1_B_VAL		0x00000000
+#define ACFG_ICR2_B_VAL		0x00000000
+#define ACFG_IMR_B_VAL		0x00000000
+#define ACFG_GPR_B_VAL		0x00000000
+#define ACFG_PUEN_B_VAL		0xFFFFFFFF
+
+#define ACFG_DDIR_C_VAL		0x00000000
+#define ACFG_OCR1_C_VAL		0x00000000
+#define ACFG_OCR2_C_VAL		0x00000000
+#define ACFG_ICFA1_C_VAL		0xFFFFFFFF
+#define ACFG_ICFA2_C_VAL		0xFFFFFFFF
+#define ACFG_ICFB1_C_VAL		0xFFFFFFFF
+#define ACFG_ICFB2_C_VAL		0xFFFFFFFF
+#define ACFG_DR_C_VAL		0x00000000
+#define ACFG_GIUS_C_VAL		0xFFFFC07F
+#define ACFG_ICR1_C_VAL		0x00000000
+#define ACFG_ICR2_C_VAL		0x00000000
+#define ACFG_IMR_C_VAL		0x00000000
+#define ACFG_GPR_C_VAL		0x00000000
+#define ACFG_PUEN_C_VAL		0xFFFFFF87
+
+#define ACFG_DDIR_D_VAL		0x00000000
+#define ACFG_OCR1_D_VAL		0x00000000
+#define ACFG_OCR2_D_VAL		0x00000000
+#define ACFG_ICFA1_D_VAL		0xFFFFFFFF
+#define ACFG_ICFA2_D_VAL		0xFFFFFFFF
+#define ACFG_ICFB1_D_VAL		0xFFFFFFFF
+#define ACFG_ICFB2_D_VAL		0xFFFFFFFF
+#define ACFG_DR_D_VAL		0x00000000
+#define ACFG_GIUS_D_VAL		0xFFFFFFFF
+#define ACFG_ICR1_D_VAL		0x00000000
+#define ACFG_ICR2_D_VAL		0x00000000
+#define ACFG_IMR_D_VAL		0x00000000
+#define ACFG_GPR_D_VAL		0x00000000
+#define ACFG_PUEN_D_VAL		0xFFFFFFFF
+
+#define ACFG_DDIR_E_VAL		0x00000000
+#define ACFG_OCR1_E_VAL		0x00000000
+#define ACFG_OCR2_E_VAL		0x00000000
+#define ACFG_ICFA1_E_VAL		0xFFFFFFFF
+#define ACFG_ICFA2_E_VAL		0xFFFFFFFF
+#define ACFG_ICFB1_E_VAL		0xFFFFFFFF
+#define ACFG_ICFB2_E_VAL		0xFFFFFFFF
+#define ACFG_DR_E_VAL		0x00000000
+#define ACFG_GIUS_E_VAL		0xFCFFCCF8
+#define ACFG_ICR1_E_VAL		0x00000000
+#define ACFG_ICR2_E_VAL		0x00000000
+#define ACFG_IMR_E_VAL		0x00000000
+#define ACFG_GPR_E_VAL		0x00000000
+#define ACFG_PUEN_E_VAL		0xFFFFFFFF
+
+#define ACFG_DDIR_F_VAL		0x00000000
+#define ACFG_OCR1_F_VAL		0x00000000
+#define ACFG_OCR2_F_VAL		0x00000000
+#define ACFG_ICFA1_F_VAL		0xFFFFFFFF
+#define ACFG_ICFA2_F_VAL		0xFFFFFFFF
+#define ACFG_ICFB1_F_VAL		0xFFFFFFFF
+#define ACFG_ICFB2_F_VAL		0xFFFFFFFF
+#define ACFG_DR_F_VAL		0x00000000
+#define ACFG_GIUS_F_VAL		0xFF7F8000
+#define ACFG_ICR1_F_VAL		0x00000000
+#define ACFG_ICR2_F_VAL		0x00000000
+#define ACFG_IMR_F_VAL		0x00000000
+#define ACFG_GPR_F_VAL		0x00000000
+#define ACFG_PUEN_F_VAL		0xFFFFFFFF
+
+/* Enforce DDR signal strengh & enable USB/PP/DMA burst override bits */
+#define ACFG_GPCR_VAL		0x0003000F
+
+#define ACFG_ESDMISC_VAL	ESDMISC_LHD+ESDMISC_MDDREN
+
+/* FMCR select num LPDDR RAMs and nand 16bits, 2KB pages */
+#if (CONFIG_NR_DRAM_BANKS == 1)
+#define ACFG_FMCR_VAL 0xFFFFFFF9
+#elif (CONFIG_NR_DRAM_BANKS == 2)
+#define ACFG_FMCR_VAL 0xFFFFFFFB
+#endif
+
+#define ACFG_AIPI1_PSR0_VAL	0x20040304
+#define ACFG_AIPI1_PSR1_VAL	0xDFFBFCFB
+#define ACFG_AIPI2_PSR0_VAL	0x00000000
+#define ACFG_AIPI2_PSR1_VAL	0xFFFFFFFF
+
+/* PCCR enable DMA FEC I2C1 IIM SDHC1 */
+#define ACFG_PCCR0_VAL		0x05070410
+#define ACFG_PCCR1_VAL		0xA14A0608
+
+/*
+ * From here, there should not be any user configuration.
+ * All Equations are automatic
+ */
+
+/* fixme none integer value (7.5ns) => 2*hclock = 15ns */
+#define ACFG_2XHCLK_LGTH	(2000/CONFIG_HCLK_FREQ)	/* ns */
+
+/* USB 60 MHz ; ARM up to 400; HClK up to 133MHz*/
+#define CSCR_MASK 0x0300800D
+
+#define ACFG_CSCR_VAL						\
+	(CSCR_MASK						\
+	|((((CONFIG_SPLL_FREQ/CONFIG_USB_FREQ)-1)&0x07) << 28)	\
+	|((((CONFIG_MPLL_FREQ/CONFIG_ARM_FREQ)-1)&0x03) << 12)	\
+	|((((ACFG_CLK_FREQ/CONFIG_HCLK_FREQ)-1)&0x03) << 8))
+
+/* SSIx CLKO NFC H264 MSHC */
+#define ACFG_PCDR0_VAL\
+	(((((ACFG_CLK_FREQ/CONFIG_MSHC_FREQ)-1)&0x3F)<<0)	\
+	|((((CONFIG_HCLK_FREQ/CONFIG_NFC_FREQ)-1)&0x0F)<<6)	\
+	|(((((ACFG_CLK_FREQ/CONFIG_H264_FREQ)-2)*2)&0x3F)<<10)\
+	|(((((ACFG_CLK_FREQ/CONFIG_SSI1_FREQ)-2)*2)&0x3F)<<16)\
+	|(((CONFIG_CLK0_DIV)&0x07)<<22)\
+	|(((CONFIG_CLK0_EN)&0x01)<<25)\
+	|(((((ACFG_CLK_FREQ/CONFIG_SSI2_FREQ)-2)*2)&0x3F)<<26))
+
+/* PERCLKx  */
+#define ACFG_PCDR1_VAL\
+	(((((ACFG_CLK_FREQ/CONFIG_PERIF1_FREQ)-1)&0x3F)<<0)	\
+	|((((ACFG_CLK_FREQ/CONFIG_PERIF2_FREQ)-1)&0x3F)<<8)	\
+	|((((ACFG_CLK_FREQ/CONFIG_PERIF3_FREQ)-1)&0x3F)<<16)	\
+	|((((ACFG_CLK_FREQ/CONFIG_PERIF4_FREQ)-1)&0x3F)<<24))
+
+/* SDRAM controller programming Values */
+#if (((2*ACFG_SDRAM_CLOCK_CYCLE_CL_1) > (3*ACFG_2XHCLK_LGTH)) || \
+	(ACFG_SDRAM_CLOCK_CYCLE_CL_1 < 1))
+#define REG_FIELD_SCL_VAL 3
+#define REG_FIELD_SCLIMX_VAL 0
+#else
+#define REG_FIELD_SCL_VAL\
+	((2*ACFG_SDRAM_CLOCK_CYCLE_CL_1+ACFG_2XHCLK_LGTH-1)/ \
+		ACFG_2XHCLK_LGTH)
+#define REG_FIELD_SCLIMX_VAL REG_FIELD_SCL_VAL
+#endif
+
+#if ((2*ACFG_SDRAM_RC_DELAY) > (16*ACFG_2XHCLK_LGTH))
+#define REG_FIELD_SRC_VAL 0
+#else
+#define REG_FIELD_SRC_VAL\
+	((2*ACFG_SDRAM_RC_DELAY+ACFG_2XHCLK_LGTH-1)/ \
+		ACFG_2XHCLK_LGTH)
+#endif
+
+/* TBD Power down timer ; PRCT Bit Field Encoding; burst length 8 ; FP = 0*/
+#define REG_ESDCTL_BASE_CONFIG (0x80020485\
+				| (((ACFG_SDRAM_NUM_ROW-11)&0x7)<<24)\
+				| (((ACFG_SDRAM_NUM_COL-8)&0x3)<<20)\
+				| (((ACFG_SDRAM_REFRESH)&0x7)<<13))
+
+#define ACFG_NORMAL_RW_CMD	((0x0<<28)+REG_ESDCTL_BASE_CONFIG)
+#define ACFG_PRECHARGE_CMD	((0x1<<28)+REG_ESDCTL_BASE_CONFIG)
+#define ACFG_AUTOREFRESH_CMD	((0x2<<28)+REG_ESDCTL_BASE_CONFIG)
+#define ACFG_SET_MODE_REG_CMD	((0x3<<28)+REG_ESDCTL_BASE_CONFIG)
+
+/* ESDRAMC Configuration Registers : force CL=3 to lpddr */
+#define ACFG_SDRAM_ESDCFG_REGISTER_VAL (0x0\
+	| (((((2*ACFG_SDRAM_EXIT_PWD+ACFG_2XHCLK_LGTH-1)/ \
+		ACFG_2XHCLK_LGTH)-1)&0x3)<<21)\
+	| (((ACFG_SDRAM_W2R_DELAY-1)&0x1)<<20)\
+	| (((((2*ACFG_SDRAM_ROW_PRECHARGE_DELAY+ \
+		ACFG_2XHCLK_LGTH-1)/ACFG_2XHCLK_LGTH)-1)&0x3)<<18) \
+	| (((ACFG_SDRAM_TMRD_DELAY-1)&0x3)<<16)\
+	| (((ACFG_SDRAM_TWR_DELAY)&0x1)<<15)\
+	| (((((2*ACFG_SDRAM_RAS_DELAY+ACFG_2XHCLK_LGTH-1)/ \
+		ACFG_2XHCLK_LGTH)-1)&0x7)<<12) \
+	| (((((2*ACFG_SDRAM_RRD_DELAY+ACFG_2XHCLK_LGTH-1)/ \
+		ACFG_2XHCLK_LGTH)-1)&0x3)<<10) \
+	| (((REG_FIELD_SCLIMX_VAL)&0x3)<<8)\
+	| (((((2*ACFG_SDRAM_RCD_DELAY+ACFG_2XHCLK_LGTH-1)/ \
+		ACFG_2XHCLK_LGTH)-1)&0x7)<<4) \
+	| (((REG_FIELD_SRC_VAL)&0x0F)<<0))
+
+/* Issue Mode register Command to SDRAM*/
+#define ACFG_SDRAM_MODE_REGISTER_VAL\
+	((((ACFG_SDRAM_BURST_LENGTH)&0x7)<<(0))\
+	| (((REG_FIELD_SCL_VAL)&0x7)<<(4))\
+	| ((0)<<(3)) /* sequentiql access */ \
+	/*| (((ACFG_SDRAM_SINGLE_ACCESS)&0x1)<<(1))*/)
+
+/* Issue Extended Mode register Command to SDRAM*/
+#define ACFG_SDRAM_EXT_MODE_REGISTER_VAL\
+	((ACFG_SDRAM_PARTIAL_ARRAY_SR<<0)\
+	| (ACFG_SDRAM_DRIVE_STRENGH<<(5))\
+	| (1<<(ACFG_SDRAM_NUM_COL+ACFG_SDRAM_NUM_ROW+1+2)))
+
+/* Issue Precharge all Command to SDRAM*/
+#define ACFG_SDRAM_PRECHARGE_ALL_VAL (1<<10)
+
+#endif /* __APF27_H */
diff --git a/board/armadeus/apf27/splboot.S b/board/armadeus/apf27/splboot.S
new file mode 100644
index 0000000..898e59b
--- /dev/null
+++ b/board/armadeus/apf27/splboot.S
@@ -0,0 +1,528 @@
+/*
+ *  IMX27 NAND Flash SPL (Secondary Program Loader)
+ *
+ *  Copyright (c) 2008  Armadeus Project / eja
+ *
+ *  Based on Freescale NAND SPL
+ *
+ *  Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
+ *  Copyright (c) 2008-2012 Eric Jarrige <eric.jarrige@armadeus.org>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <config.h>
+#include <generated/asm-offsets.h>
+#include <version.h>
+#include <asm/macro.h>
+#include <asm/arch/imx-regs.h>
+/* #include <linux/linkage.h> */
+#include "apf27.h"
+
+/*
+ * Standard NAND flash commands
+ */
+#define NAND_CMD_READ0		0
+
+/* Extended commands for large page devices */
+#define NAND_CMD_READSTART	0x30
+#define NAND_CMD_CACHEDPROG	0x15
+
+/* Status bits */
+#define NAND_STATUS_FAIL	0x01
+#define NAND_STATUS_FAIL_N1	0x02
+#define NAND_STATUS_TRUE_READY	0x20
+#define NAND_STATUS_READY	0x40
+#define NAND_STATUS_WP		0x80
+
+#define IMX_NFC_MAIN_AREA0      (0xD8000000)
+#define IMX_NFC_MAIN_AREA1      (0xD8000200)
+#define IMX_NFC_SPARE_AREA0     (0xD8000800)
+#define IMX_NFC_REGS            (0xD8000E00)
+
+/*
+ * NFC registers address offset
+ */
+#define NFC_OFFSET_BUF_ADDR            (0x04) /* Buffer Number for Page Data
+                                                 Transfer To/From Flash Mem */
+#define NFC_OFFSET_FLASH_ADDR          (0x06) /* NAND Flash Address */
+#define NFC_OFFSET_FLASH_CMD           (0x08) /* NAND Flash Command */
+#define NFC_OFFSET_CONFIG              (0x0A) /* NFC Internal Buffer Lock
+                                                 Control */
+#define NFC_OFFSET_ECC_STATUS_RESULT   (0x0C) /* Controller Status/Result of
+                                                 Flash Operation */
+#define NFC_OFFSET_CONFIG1             (0x1A) /* Nand Flash Operation
+                                                 Configuration 1 */
+#define NFC_OFFSET_CONFIG2             (0x1C) /* Nand Flash Operation
+                                                 Configuration 2 */
+
+/* NFC_ECC_STATUS_RESULT Status Register Bit Fields */
+#define NFC_ECC_STAT_ERM_SHFT   (2)      /* ERM shift */
+#define NFC_ECC_STAT_ERROR2     (1<<1)   /* non correctable error */
+
+/* NFC_CONFIG Control Register Bit Fields */
+#define NFC_CONFIG_UNLOCKED     (1<<1)   /* unlocked */
+
+/* NFC_CONFIG1 Control Register Bit Fields */
+#define NFC_CONFIG1_ECC_EN	(1<<3)
+#define NFC_CONFIG1_INT_MSK	(1<<4)
+
+/* NFC_CONFIG2 Control Register Bit Fields */
+#define NFC_CONFIG2_INT         (1<<15)  /* Interrupt */
+#define NFC_CONFIG2_FDO_PAGE    (1<<3)   /* Flash data output */
+#define NFC_CONFIG2_FDI         (1<<2)   /* Flash data input */
+#define NFC_CONFIG2_FADD        (1<<1)   /* Flash address input */
+#define NFC_CONFIG2_FCMD        (1<<0)   /* Flash command input */
+
+	.macro nand_boot
+
+#ifdef CONFIG_BOOT_TRACE_REG
+/*
+ * If CONFIG_BOOT_TRACE_REG is a SDRAM address then be sure to use the following
+ * 2 command after SDRAM init
+ */
+
+/* Backup state of previous boot to CONFIG_BOOT_TRACE_REG+4*/
+#define BACKUP_TRACE()			\
+	ldr r4, =CONFIG_BOOT_TRACE_REG;	\
+	ldr r3, [r4];			\
+	str r3, [r4, #0x04];
+
+/* Save a state of boot@CONFIG_BOOT_TRACE_REG */
+#define BOOT_TRACE(val)		\
+	ldr r4, =CONFIG_BOOT_TRACE_REG;	\
+	ldr r3, =val;			\
+	str r3, [r4];
+#else
+#define BACKUP_TRACE()
+#define BOOT_TRACE(val)
+#endif
+
+nand_boot_setup:
+
+	/* Copy SPL image from flash to SDRAM first */
+	BOOT_TRACE(1)
+	ldr r0, =IMX_NFC_MAIN_AREA0
+	add r2, r0, #(IMX_NFC_SPARE_AREA0-IMX_NFC_MAIN_AREA0) //2KB NFC Buff
+	ldr r1, =CONFIG_SYS_NAND_U_BOOT_DST
+
+	BOOT_TRACE(2)
+1:	ldmia r0!, {r3-r10}
+	stmia r1!, {r3-r10}
+	cmp r0, r2
+	blo 1b
+
+
+
+	/* Jump to SDRAM */
+	BOOT_TRACE(3)
+	ldr r1, =0x7FF
+	and r0, pc, r1	 /* offset of pc */
+	ldr r1, =CONFIG_SYS_NAND_U_BOOT_DST
+	add r1, r1, #0x10
+	add pc, r0, r1
+	nop
+	nop
+	nop
+	nop
+
+nand_copy_main:
+	BOOT_TRACE(4)
+	/* r0: nfc base. Reloaded after each page copying		*/
+	ldr r0, =IMX_NFC_MAIN_AREA0
+
+	/* r1: starting flash addr to be copied. Updated constantly	*/
+	/* bypass the first preloaded pages				*/
+	ldr r1, =(IMX_NFC_SPARE_AREA0-IMX_NFC_MAIN_AREA0)
+
+	/* r2: end of 1st RAM buf. Doesn't change			*/
+	ldr r2, =IMX_NFC_MAIN_AREA1
+
+	/* r12: NFC register base. Doesn't change			*/
+	ldr r12, =IMX_NFC_REGS
+
+	ldr r11, =CONFIG_SYS_NAND_U_BOOT_DST
+
+	/* r13: end of SDRAM address for copying. Doesn't change	*/
+	add r13, r11, #CONFIG_SYS_NAND_U_BOOT_SIZE
+
+	/* r11: starting SDRAM address for copying. Updated constantly	*/
+	add r11, r11, r1
+
+	/* unlock internal buffer					*/
+	ldr r3, =NFC_CONFIG_UNLOCKED
+	strh r3, [r12, #NFC_OFFSET_CONFIG]
+
+	/* enable ECC and mask interrupts				*/
+	ldr r3, =(NFC_CONFIG1_ECC_EN | NFC_CONFIG1_INT_MSK)
+	strh r3, [r12, #NFC_OFFSET_CONFIG1]
+
+nfc_read_page:
+	BOOT_TRACE(5)
+	/*  send NAND_CMD_READ0 command				*/
+	ldr r3, =NAND_CMD_READ0;
+	strh r3, [r12, #NFC_OFFSET_FLASH_CMD]
+
+	ldr r3, =NFC_CONFIG2_FCMD
+	strh r3, [r12, #NFC_OFFSET_CONFIG2]
+	bl do_wait_op_done
+
+	/* send NAND address to read. TODO small page support		*/
+	BOOT_TRACE(6)
+	mov r3, r1, lsr #1
+	bl do_addr_input	   /* 1st addr cycle */
+
+	mov r3, r1, lsr #9
+	and r3, r3, #0x03
+	bl do_addr_input	   /* 2nd addr cycle */
+
+	mov r3, r1, lsr #11
+	bl do_addr_input	   /* 3rd addr cycle */
+
+	mov r3, r1, lsr #19
+	bl do_addr_input	   /* 4th addr cycle */
+
+	/* Small NAND flashs (== 1Gb) support 5 addr cycles		*/
+	mov r3, r1, lsr #27
+	bl do_addr_input	   /* 5th addr cycle */
+
+	/* send NAND_CMD_READSTART command. TODO small page support	*/
+	BOOT_TRACE(7)
+	mov r3, #NAND_CMD_READSTART;
+	strh r3, [r12, #NFC_OFFSET_FLASH_CMD]
+	mov r3, #NFC_CONFIG2_FCMD
+	strh r3, [r12, #NFC_OFFSET_CONFIG2]
+	bl do_wait_op_done
+
+	/* read and copy buf 0						*/
+	BOOT_TRACE(8)
+	mov r3, #0
+	strh r3, [r12, #NFC_OFFSET_BUF_ADDR]
+
+	mov r3, #NFC_CONFIG2_FDO_PAGE
+	strh r3, [r12, #NFC_OFFSET_CONFIG2]
+	bl do_wait_op_done
+
+	bl test_and_copy_buffer
+
+	/* read and copy buf 1						*/
+	mov r3, #1
+	strh r3, [r12, #NFC_OFFSET_BUF_ADDR]
+
+	mov r3, #NFC_CONFIG2_FDO_PAGE
+	strh r3, [r12, #NFC_OFFSET_CONFIG2]
+	bl do_wait_op_done
+
+	bl test_and_copy_buffer
+
+	/* here we should test if 512B page flash and bypass next buffers */
+	/* read and copy buf 2. TODO small page support		*/
+	mov r3, #2
+	strh r3, [r12, #NFC_OFFSET_BUF_ADDR]
+
+	mov r3, #NFC_CONFIG2_FDO_PAGE
+	strh r3, [r12, #NFC_OFFSET_CONFIG2]
+	bl do_wait_op_done
+
+	bl test_and_copy_buffer
+
+	/* read and copy buf 3 */
+	mov r3, #3
+	strh r3, [r12, #NFC_OFFSET_BUF_ADDR]
+
+	mov r3, #NFC_CONFIG2_FDO_PAGE
+	strh r3, [r12, #NFC_OFFSET_CONFIG2]
+	bl do_wait_op_done
+
+	bl test_and_copy_buffer
+
+	/* is the last page ? */
+	BOOT_TRACE(12)
+	cmp r11, r13
+	bge nand_copy_main_done
+
+	/* r0: nfc base. Reloaded after each page copying */
+	ldr r0, =IMX_NFC_MAIN_AREA0
+	/* r2: end of 1st RAM buf. Doesn't change */
+	ldr r2, =IMX_NFC_MAIN_AREA1
+	b nfc_read_page
+
+nand_copy_main_done:
+	BOOT_TRACE(13)
+	.endm /* nand_boot */
+
+	.macro init_aipi
+	/*
+	 * setup AIPI1 and AIPI2
+	 */
+	write32 AIPI1_PSR0, ACFG_AIPI1_PSR0_VAL
+	write32 AIPI1_PSR1, ACFG_AIPI1_PSR1_VAL
+	write32 AIPI2_PSR0, ACFG_AIPI2_PSR0_VAL
+	write32 AIPI2_PSR1, ACFG_AIPI2_PSR1_VAL
+
+	/* Change SDRAM signal strengh */
+	ldr r0, =GPCR
+	ldr r1, =ACFG_GPCR_VAL
+	ldr r5, [r0]
+	orr r5, r5, r1
+	str r5, [r0]
+
+	.endm /* init_aipi */
+
+	.macro init_clock
+	ldr r0, =CSCR
+	/* disable MPLL/SPLL first */
+	ldr r1, [r0]
+	bic r1, r1, #(CSCR_MPEN|CSCR_SPEN)
+	str r1, [r0]
+
+ 	/*
+	 * pll clock initialization predefined in apf27.h
+	 */
+	write32 MPCTL0, ACFG_MPCTL0_VAL
+	write32 SPCTL0, ACFG_SPCTL0_VAL
+
+	write32 CSCR, ACFG_CSCR_VAL|CSCR_MPLL_RESTART|CSCR_SPLL_RESTART
+
+	/*
+	 * add some delay here
+	 */
+	mov r1, #0x1000
+	1:  subs r1, r1, #0x1
+	bne 1b
+
+	/* peripheral clock divider */
+	write32 PCDR0, ACFG_PCDR0_VAL
+	write32 PCDR1, ACFG_PCDR1_VAL
+
+	/* Configure PCCR0 and PCCR1 */
+	write32 PCCR0, ACFG_PCCR0_VAL
+	write32 PCCR1, ACFG_PCCR1_VAL
+
+	.endm /* init_clock */
+
+.globl board_init_f
+board_init_f:
+
+	/*
+	 * invalidate I/D cache/TLB and drain write buffer
+	 */
+	mov r0, #0
+	mcr p15, 0, r0, c7, c7, 0	/* invalidate I cache and D cache */
+	mcr p15, 0, r0, c8, c7, 0	/* invalidate TLBs */
+	mcr p15, 0, r0, c7, c10, 4	/* Drain the write buffer */
+
+	/*
+	 * disable MMU stuff and caches
+	 */
+	mrc p15, 0, r0, c1, c0, 0
+	bic	r0, r0, #0x00002300	/* clear bits 13, 9:8 (--V- --RS) */
+	bic	r0, r0, #0x00000087	/* clear bits 7, 2:0 (B--- -CAM) */
+	orr	r0, r0, #0x00000002	/* set bit 2 (A) Align */
+	orr	r0, r0, #0x00001000	/* set bit 12 (I) I-Cache */
+	mcr p15, 0, r0, c1, c0, 0
+
+init_aipi_start:
+	init_aipi
+
+	/* check if sdram has been setup (running within sdram) */
+	cmp pc, #0xa0000000 /* start of first sdram memory space */
+	blo init_clock_start
+	cmp pc, #0xc0000000 /* end of second sdram memory space */
+	blo regular_boot
+
+	/* running from sdram with full code present -> regular_boot */
+init_clock_start:
+	init_clock
+
+init_sdram_start:
+	bl setup_sdram_ddr
+
+	/* save state of previous boot (SDRAM is configured)*/
+	BACKUP_TRACE()
+
+	/* nand_boot BOOT_TRACE(1..13) */
+
+	nand_boot
+
+	BOOT_TRACE(14) /* start regular U-Boot */
+
+regular_boot: /* jump to start of next 2kiB block (U-Boot) */
+	ldr r0, =0xfffff800
+	and r0, r0, pc
+	add pc, r0, #0x800
+
+do_wait_op_done:
+	1:
+	ldrh r3, [r12, #NFC_OFFSET_CONFIG2]
+	ands r3, r3, #NFC_CONFIG2_INT
+	beq 1b
+	mov r3, #0x0
+	strh r3, [r12, #NFC_OFFSET_CONFIG2]
+	mov	pc, lr
+
+do_addr_input:
+	mov r9, lr
+	and r3, r3, #0xFF
+	strh r3, [r12, #NFC_OFFSET_FLASH_ADDR]
+	mov r3, #NFC_CONFIG2_FADD
+	strh r3, [r12, #NFC_OFFSET_CONFIG2]
+	bl do_wait_op_done
+	mov pc, r9
+
+test_and_copy_buffer:
+	/* check for bad block (2 bits error in main or spare are)*/
+	BOOT_TRACE(9)
+	ldrh r4, [r12, #NFC_OFFSET_ECC_STATUS_RESULT]
+	ands r4, r4, #(NFC_ECC_STAT_ERROR2| \
+		(NFC_ECC_STAT_ERROR2<<NFC_ECC_STAT_ERM_SHFT))
+	bne skip_bad_buffer
+
+	/* check BI byte of the current spare buffer */
+	ldr r4, =IMX_NFC_SPARE_AREA0
+	ldrh r3, [r12, #NFC_OFFSET_BUF_ADDR] /* for the current buffer */
+	orr  r4, r3, lsl #0x04
+
+	/* at bi word offset 4. */
+	/* Fixme position change betwwen 8 and 16 bits bus */
+	ldrh r4, [r4, #0x04]
+	and r4, r4, #0x0FF00 /* has to be 0xFFxx */
+	cmp r4, #0x0FF00
+	bne skip_bad_buffer
+
+copy_good_buffer:
+	/* copying 512 bytes buffer */
+	BOOT_TRACE(10)
+1:  ldmia r0!, {r3-r10}
+	stmia r11!, {r3-r10}
+	cmp r0, r2
+	blo 1b
+	b end_of_copy
+
+skip_bad_buffer:
+	BOOT_TRACE(11)
+	/* bad pages do not contain valid data and have to be skip	*/
+	add r0, r0, #0x200
+
+	/* rewind ram addr to start of buffer */
+	ldr r3, =(~0x1FF)
+	and r11, r11, r3
+
+end_of_copy:
+	add r2, r2, #0x200
+	add r1, r1, #0x200
+
+	mov	pc, lr
+
+setup_sdram_ddr:
+
+	/* wait for SDRAM/LPDDR ready (SDRAMRDY) */
+	ldr		r0, =IMX_ESD_BASE
+	ldr		r4, =ESDMISC_SDRAM_RDY
+2:	ldr		r1, [r0, #ESDMISC_ROF]
+	ands		r1, r1, r4
+	bpl		2b
+
+	/* LPDDR Soft Reset Mobile/Low Power DDR SDRAM. */
+	ldr		r0, =IMX_ESD_BASE
+	ldr		r4, =ACFG_ESDMISC_VAL
+	orr		r1, r4, #ESDMISC_MDDR_DL_RST
+	str		r1, [r0, #ESDMISC_ROF]
+
+	/* Hold for more than 200ns */
+	ldr		r1, =0x10000
+1:	subs		r1, r1, #0x1
+	bne		1b
+
+	str		r4, [r0]
+
+	ldr		r0, =IMX_ESD_BASE
+	ldr		r1, =ACFG_SDRAM_ESDCFG_REGISTER_VAL
+	str		r1, [r0, #ESDCFG0_ROF]
+
+	ldr		r0, =IMX_ESD_BASE
+	ldr		r1, =ACFG_PRECHARGE_CMD
+	str		r1, [r0, #ESDCTL0_ROF]
+
+	/* write8(0xA0001000, any value) */
+	ldr		r1, =PHYS_SDRAM_1+ACFG_SDRAM_PRECHARGE_ALL_VAL
+	strb		r2, [r1]
+
+	ldr		r1, =ACFG_AUTOREFRESH_CMD
+	str		r1, [r0, #ESDCTL0_ROF]
+
+	ldr 		r4, =PHYS_SDRAM_1	/* CSD0 base address	*/
+
+	ldr 		r6,=0x7		/* load loop counter	*/
+1:	str 		r5,[r4]		/* run auto-refresh cycle to array 0 */
+	subs 		r6,r6,#1
+	bne 1b
+
+	ldr		r1, =ACFG_SET_MODE_REG_CMD
+	str		r1, [r0, #ESDCTL0_ROF]
+
+	/* set standard mode register */
+	ldr		r4, = PHYS_SDRAM_1+ACFG_SDRAM_MODE_REGISTER_VAL
+	strb		r2, [r4]
+
+	/* set extended mode register */
+	ldr		r4, =PHYS_SDRAM_1+ACFG_SDRAM_EXT_MODE_REGISTER_VAL
+	strb		r5, [r4]
+
+	ldr		r1, =ACFG_NORMAL_RW_CMD
+	str		r1, [r0, #ESDCTL0_ROF]
+
+	/* 2nd sdram */
+	ldr		r0, =IMX_ESD_BASE
+	ldr		r1, =ACFG_SDRAM_ESDCFG_REGISTER_VAL
+	str		r1, [r0, #ESDCFG1_ROF]
+
+	ldr		r0, =IMX_ESD_BASE
+	ldr		r1, =ACFG_PRECHARGE_CMD
+	str		r1, [r0, #ESDCTL1_ROF]
+
+	/* write8(0xB0001000, any value) */
+	ldr		r1, =PHYS_SDRAM_2+ACFG_SDRAM_PRECHARGE_ALL_VAL
+	strb		r2, [r1]
+
+	ldr		r1, =ACFG_AUTOREFRESH_CMD
+	str		r1, [r0, #ESDCTL1_ROF]
+
+	ldr 		r4, =PHYS_SDRAM_2	/* CSD1 base address */
+
+	ldr 		r6,=0x7		/* load loop counter */
+1:	str 		r5,[r4]		/* run auto-refresh cycle to array 0 */
+	subs 		r6,r6,#1
+	bne 1b
+
+	ldr		r1, =ACFG_SET_MODE_REG_CMD
+	str		r1, [r0, #ESDCTL1_ROF]
+
+	/* set standard mode register */
+	ldr		r4, =PHYS_SDRAM_2+ACFG_SDRAM_MODE_REGISTER_VAL
+	strb		r2, [r4]
+
+	/* set extended mode register */
+	ldr		r4, =PHYS_SDRAM_2+ACFG_SDRAM_EXT_MODE_REGISTER_VAL
+	strb		r2, [r4]
+
+	ldr		r1, =ACFG_NORMAL_RW_CMD
+	str		r1, [r0, #ESDCTL1_ROF]
+
+	mov	pc, lr
diff --git a/boards.cfg b/boards.cfg
index 6a368de..14ce685 100644
--- a/boards.cfg
+++ b/boards.cfg
@@ -195,6 +195,7 @@ jadecpu                      arm         arm926ejs   jadecpu             syteco
 mx25pdk                      arm         arm926ejs   mx25pdk             freescale      mx25		mx25pdk:IMX_CONFIG=board/freescale/mx25pdk/imximage.cfg
 tx25                         arm         arm926ejs   tx25                karo           mx25
 zmx25                        arm         arm926ejs   zmx25               syteco         mx25
+apf27                        arm         arm926ejs   apf27               armadeus       mx27
 imx27lite                    arm         arm926ejs   imx27lite           logicpd        mx27
 magnesium                    arm         arm926ejs   imx27lite           logicpd        mx27
 mx23_olinuxino               arm         arm926ejs   mx23_olinuxino      olimex         mxs		mx23_olinuxino
diff --git a/include/configs/apf27.h b/include/configs/apf27.h
new file mode 100644
index 0000000..a49be56
--- /dev/null
+++ b/include/configs/apf27.h
@@ -0,0 +1,446 @@
+/*
+ *
+ * Configuration settings for the Armadeus Project motherboard APF27
+ *
+ * Copyright (C) 2008-2012 ej / Armadeus Project <eric.jarrige@armadeus.org>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#ifndef __CONFIG_H
+#define __CONFIG_H
+
+#define CONFIG_VERSION_VARIABLE
+#define CONFIG_ENV_VERSION	"3.3"
+#define CONFIG_IDENT_STRING	" apf27 patch 3.9"
+#define CONFIG_BOARD_NAME	apf27
+
+/*
+ * SoC configurations
+ */
+#define CONFIG_ARM926EJS		/* this is an ARM926EJS CPU */
+#define CONFIG_MX27			/* in a Freescale i.MX27 Chip */
+#define CONFIG_MACH_TYPE	1698	/* APF27 */
+
+/*
+ * Enable the call to miscellaneous platform dependent initialization.
+ */
+#define CONFIG_SYS_NO_FLASH	/* to be define before <config_cmd_default.h> */
+#define CONFIG_MISC_INIT_R
+#define CONFIG_BOARD_EARLY_INIT_F
+#ifdef CONFIG_SPL_BUILD
+#define CONFIG_SKIP_LOWLEVEL_INIT
+#endif
+
+/*
+ * Board display option
+ */
+#define CONFIG_DISPLAY_BOARDINFO
+#define CONFIG_DISPLAY_CPUINFO
+
+/*
+ * SPL
+ */
+/* Copy SPL+U-Boot here	     */
+#define CONFIG_SYS_NAND_U_BOOT_DST	(CONFIG_SYS_TEXT_BASE - 0x800)
+/* Size is the partion size  */
+#define CONFIG_SYS_NAND_U_BOOT_SIZE	CONFIG_SYS_MONITOR_LEN
+/* Build image with spl and u-boot */
+#define CONFIG_NAND_U_BOOT
+#define CONFIG_SPL_PAD_TO		0xa0000800
+
+/*
+ * SPL
+ */
+#define	CONFIG_SPL
+#define CONFIG_SPL_TEXT_BASE            0xa0000000
+#define CONFIG_SPL_STACK                0xffffff00
+#define CONFIG_SYS_NAND_U_BOOT_START    0xa0000800
+#define CONFIG_SYS_NAND_U_BOOT_OFFS	0x800
+
+/*
+ * BOOTP options
+ */
+#define CONFIG_BOOTP_SUBNETMASK
+#define CONFIG_BOOTP_GATEWAY
+#define CONFIG_BOOTP_HOSTNAME
+#define CONFIG_BOOTP_BOOTPATH
+#define CONFIG_BOOTP_BOOTFILESIZE
+#define CONFIG_BOOTP_DNS
+#define CONFIG_BOOTP_DNS2
+
+#define CONFIG_HOSTNAME	CONFIG_BOARD_NAME
+#define CONFIG_ROOTPATH	"/tftpboot/" __stringify(CONFIG_BOARD_NAME) "-root"
+
+/*
+ * U-Boot Commands
+ */
+#include <config_cmd_default.h>
+
+#define CONFIG_CMD_ASKENV	/* ask for env variable		*/
+#define CONFIG_CMD_BSP		/* Board Specific functions	*/
+#define CONFIG_CMD_CACHE	/* icache, dcache		*/
+#define CONFIG_CMD_DATE
+#define CONFIG_CMD_DHCP		/* DHCP Support			*/
+#define CONFIG_CMD_DNS
+#define CONFIG_CMD_EEPROM
+#define CONFIG_CMD_EXT2
+#define CONFIG_CMD_FAT		/* FAT support			*/
+#define CONFIG_CMD_IMX_FUSE	/* imx iim fuse                 */
+#define CONFIG_CMD_I2C
+#define CONFIG_CMD_MII		/* MII support			*/
+#define CONFIG_CMD_MMC
+#define CONFIG_CMD_MTDPARTS	/* MTD partition support	*/
+#define CONFIG_CMD_NAND		/* NAND support			*/
+#define CONFIG_CMD_NAND_LOCK_UNLOCK
+#define CONFIG_CMD_NAND_TRIMFFS
+#define CONFIG_CMD_NFS		/* NFS support			*/
+#define CONFIG_CMD_PING		/* ping support			*/
+#define CONFIG_CMD_SETEXPR	/* setexpr support		*/
+#define CONFIG_CMD_UBI
+#define CONFIG_CMD_UBIFS
+
+/*
+ * Memory configurations
+ */
+#define CONFIG_NR_DRAM_POPULATED 1
+#define CONFIG_NR_DRAM_BANKS	2
+
+#define ACFG_SDRAM_MBYTE_SYZE 64
+
+#define PHYS_SDRAM_1			0xA0000000
+#define PHYS_SDRAM_2			0xB0000000
+#define CONFIG_SYS_SDRAM_BASE		PHYS_SDRAM_1
+#define CONFIG_SYS_MALLOC_LEN		(CONFIG_ENV_SIZE + (512<<10))
+#define CONFIG_SYS_MEMTEST_START	0xA0000000	/* memtest test area  */
+#define CONFIG_SYS_MEMTEST_END		0xA0300000	/* 3 MiB RAM test */
+
+#define CONFIG_SYS_INIT_SP_ADDR	(CONFIG_SYS_SDRAM_BASE	\
+		+ PHYS_SDRAM_1_SIZE - 0x0100000)
+
+#define CONFIG_SYS_TEXT_BASE	0xA0000800
+
+/*
+ * FLASH organization
+ */
+#define	ACFG_MONITOR_OFFSET		0x00000000
+#define	CONFIG_SYS_MONITOR_LEN		0x00100000	/* 1MiB */
+#define CONFIG_ENV_IS_IN_NAND
+#define	CONFIG_ENV_OVERWRITE
+#define	CONFIG_ENV_OFFSET		0x00100000	/* NAND offset */
+#define	CONFIG_ENV_SIZE			0x00020000	/* 128kB  */
+#define CONFIG_ENV_RANGE		0X00080000	/* 512kB */
+#define	CONFIG_ENV_OFFSET_REDUND	\
+		(CONFIG_ENV_OFFSET + CONFIG_ENV_RANGE)	/* +512kB */
+#define	CONFIG_ENV_SIZE_REDUND		CONFIG_ENV_SIZE	/* 512kB */
+#define	CONFIG_FIRMWARE_OFFSET		0x00200000
+#define	CONFIG_KERNEL_OFFSET		0x00300000
+#define	CONFIG_ROOTFS_OFFSET		0x00800000
+
+#define CONFIG_MTDMAP			"mxc_nand.0"
+#define MTDIDS_DEFAULT			"nand0=" CONFIG_MTDMAP
+#define MTDPARTS_DEFAULT	"mtdparts=" CONFIG_MTDMAP \
+				":1M(u-boot)ro," \
+				"512K(env)," \
+				"512K(env2)," \
+				"512K(firmware)," \
+				"512K(dtb)," \
+				"5M(kernel)," \
+				"-(rootfs)"
+
+/*
+ * U-Boot general configurations
+ */
+#define CONFIG_SYS_LONGHELP
+#define CONFIG_SYS_PROMPT		"BIOS> "	/* prompt string */
+#define CONFIG_SYS_CBSIZE		2048		/* console I/O buffer */
+#define CONFIG_SYS_PBSIZE		\
+				(CONFIG_SYS_CBSIZE+sizeof(CONFIG_SYS_PROMPT)+16)
+						/* Print buffer size */
+#define CONFIG_SYS_MAXARGS		16		/* max command args */
+#define CONFIG_SYS_BARGSIZE		CONFIG_SYS_CBSIZE
+						/* Boot argument buffer size */
+#define CONFIG_AUTO_COMPLETE
+#define CONFIG_CMDLINE_EDITING
+#define CONFIG_SYS_HUSH_PARSER			/* enable the "hush" shell */
+#define CONFIG_SYS_PROMPT_HUSH_PS2	"> "	/* secondary prompt string */
+
+/*
+ * Boot Linux
+ */
+#define CONFIG_CMDLINE_TAG		/* send commandline to Kernel	*/
+#define CONFIG_SETUP_MEMORY_TAGS	/* send memory definition to kernel */
+#define CONFIG_INITRD_TAG		/* send initrd params	*/
+
+#define CONFIG_OF_LIBFDT
+
+#define CONFIG_BOOTDELAY	5
+#define CONFIG_ZERO_BOOTDELAY_CHECK
+#define	CONFIG_BOOTFILE		__stringify(CONFIG_BOARD_NAME) "-linux.bin"
+#define CONFIG_BOOTARGS		"console=" __stringify(ACFG_CONSOLE_DEV) "," \
+			__stringify(CONFIG_BAUDRATE) " " MTDPARTS_DEFAULT \
+			" ubi.mtd=rootfs root=ubi0:rootfs rootfstype=ubifs "
+
+#define ACFG_CONSOLE_DEV	ttySMX0
+#define CONFIG_BOOTCOMMAND	"run ubifsboot"
+#define CONFIG_SYS_AUTOLOAD	"no"
+/*
+ * Default load address for user programs and kernel
+ */
+#define CONFIG_LOADADDR			0xA0000000
+#define	CONFIG_SYS_LOAD_ADDR		CONFIG_LOADADDR
+
+/*
+ * Extra Environments
+ */
+#define CONFIG_EXTRA_ENV_SETTINGS \
+	"env_version="		CONFIG_ENV_VERSION			"\0" \
+	"consoledev="		__stringify(ACFG_CONSOLE_DEV)		"\0" \
+	"mtdparts="		MTDPARTS_DEFAULT			"\0" \
+	"partition=nand0,6\0"						\
+	"u-boot_addr="		__stringify(ACFG_MONITOR_OFFSET)	"\0" \
+	"env_addr="		__stringify(CONFIG_ENV_OFFSET)		"\0" \
+	"firmware_addr="	__stringify(CONFIG_FIRMWARE_OFFSET)	"\0" \
+	"kernel_addr="		__stringify(CONFIG_KERNEL_OFFSET)	"\0" \
+	"rootfs_addr="		__stringify(CONFIG_ROOTFS_OFFSET)	"\0" \
+	"board_name="		__stringify(CONFIG_BOARD_NAME)		"\0" \
+	"kernel_addr_r=A0000000\0" \
+	"addnfsargs=setenv bootargs ${bootargs} "			\
+		"root=/dev/nfs rw nfsroot=${serverip}:${rootpath}\0"    \
+	"addubifsargs=setenv bootargs ${bootargs} "			\
+		"ubi.mtd=rootfs root=ubi0:rootfs rootfstype=ubifs\0"    \
+	"addmmcargs=setenv bootargs ${bootargs} "			\
+		"root=/dev/mmcblk0p1 rootfstype=ext2\0"			\
+	"addipargs=setenv bootargs ${bootargs} "			\
+		"ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}:"	\
+		"${hostname}:eth0:off \0"				\
+	"nfsboot=setenv bootargs console=${consoledev},${baudrate} "	\
+		"${mtdparts} ${extrabootargs}; run addnfsargs addipargs;"\
+		"nfs ${kernel_addr_r} "					\
+		"${serverip}:${rootpath}/boot/${board_name}-linux.bin;"	\
+		"if test -n ${fdt_addr_r}  ; then "			\
+			"nand read ${fdt_addr_r} dtb; fi;"		\
+		"bootm ${kernel_addr_r} - ${fdt_addr_r}\0"		\
+	"ubifsboot=setenv bootargs console=${consoledev},${baudrate} "	\
+		"${mtdparts} ${extrabootargs};run addubifsargs addipargs;"\
+		"if test -n ${fdt_addr_r}  ; then "			\
+			"nand read ${fdt_addr_r} dtb; fi;"		\
+		"nboot ${kernel_addr_r} kernel;"			\
+		"bootm ${kernel_addr_r} - ${fdt_addr_r}\0"		\
+	"mmcboot=setenv bootargs console=${consoledev},${baudrate} "	\
+		"${mtdparts} ${extrabootargs}; run addmmcargs addipargs;"\
+		"if test -n ${fdt_addr_r}  ; then "			\
+			"nand read ${fdt_addr_r} dtb; fi;"		\
+		"mmc dev 0; ext2load mmc 0 ${kernel_addr_r}"		\
+			" /boot/${board_name}-linux.bin;"		\
+		"bootm ${kernel_addr_r} - ${fdt_addr_r}\0"		\
+	"boot_nfs_fallback_flash=if ping ${serverip};"			\
+			"then echo Boot over NFS; run nfsboot;"		\
+			"else echo Boot from the board; run ubifsboot;"	\
+		"fi\0"							\
+	"firmware_autoload=0\0"						\
+	"flash_uboot=nand unlock ${u-boot_addr} ;"			\
+		"nand erase.part u-boot;"		\
+		"if nand write.trimffs ${fileaddr} ${u-boot_addr} ${filesize};"\
+			"then nand lock; nand unlock ${env_addr};"	\
+				"echo Flashing of uboot succeed;"	\
+			"else echo Flashing of uboot failed;"		\
+		"fi; \0"						\
+	"flash_firmware=nand erase.part firmware;"			\
+	"if nand write.trimffs ${fileaddr} ${firmware_addr} ${filesize};"\
+			"then echo Flashing of Firmware succeed;"	\
+			"else echo Flashing of Firmware failed;"	\
+		"fi\0"							\
+	"flash_kernel=nand erase.part kernel;"				\
+		"if nand write.trimffs ${fileaddr} ${kernel_addr} ${filesize};"\
+			"then echo Flashing of kernel succeed;"		\
+			"else echo Flashing of kernel failed;"		\
+		"fi\0"							\
+	"flash_rootfs=nand erase.part rootfs;"	\
+		"if nand write.trimffs ${fileaddr} ${rootfs_addr} ${filesize};"\
+			"then echo Flashing of rootfs succeed;"		\
+			"else echo Flashing of rootfs failed;"		\
+		"fi\0"							\
+	"flash_dtb=nand erase.part dtb;"				\
+		"if nand write.trimffs ${fileaddr} dtb ${filesize};"	\
+			"then echo Flashing of rootfs succeed;"		\
+			"else echo Flashing of rootfs failed;"		\
+		"fi\0"							\
+	"flash_reset_env=env default -f -a; saveenv;"			\
+		"echo Flash environment variables erased!\0"		\
+	"download_uboot=tftpboot ${loadaddr} ${board_name}-u-boot-nand.bin\0" \
+	"download_kernel=tftpboot ${loadaddr} ${board_name}-linux.bin\0" \
+	"download_rootfs=tftpboot ${loadaddr} ${board_name}-rootfs.ubi\0" \
+	"download_dtb=tftpboot ${loadaddr} imx27-${board_name}.dtb\0" \
+	"update_uboot=run download_uboot flash_uboot\0"			\
+	"update_kernel=run download_kernel flash_kernel\0"		\
+	"update_rootfs=run download_rootfs flash_rootfs\0"		\
+	"update_dtb=run download_dtb flash_dtb\0"		\
+	"update_all=run download_kernel flash_kernel download_rootfs "	\
+		"flash_rootfs download_uboot flash_uboot\0"		\
+	"unlock_regs=mw 10000008 0; mw 10020008 0\0"			\
+
+/*
+ * Serial Driver
+ */
+#define CONFIG_MXC_UART
+#define CONFIG_CONS_INDEX		1
+#define CONFIG_BAUDRATE			115200
+#define CONFIG_MXC_UART_BASE		UART1_BASE
+
+/*
+ * GPIO
+ */
+#define CONFIG_MXC_GPIO
+
+/*
+ * NOR
+ */
+
+/*
+ * NAND
+ */
+#define CONFIG_NAND_MXC
+
+#define CONFIG_MXC_NAND_REGS_BASE	0xD8000000
+#define CONFIG_SYS_NAND_BASE		CONFIG_MXC_NAND_REGS_BASE
+#define CONFIG_SYS_MAX_NAND_DEVICE	1
+
+#define CONFIG_MXC_NAND_HWECC
+#define CONFIG_SYS_NAND_LARGEPAGE
+#define CONFIG_SYS_NAND_BUSWIDTH_16BIT
+#define NAND_MAX_CHIPS			1
+
+
+#define CONFIG_FLASH_SHOW_PROGRESS	45
+#define CONFIG_SYS_NAND_QUIET		1
+
+#define CONFIG_BOOT_TRACE_REG	0xAFFFFFF8 /* Addr to store traces of SPL boot*/
+
+/*
+ * Partitions & Filsystems
+ */
+#define CONFIG_MTD_DEVICE
+#define CONFIG_MTD_PARTITIONS
+#define CONFIG_DOS_PARTITION
+#define CONFIG_SUPPORT_VFAT
+
+/*
+ * UBIFS
+ */
+#define CONFIG_RBTREE
+#define CONFIG_LZO
+
+/*
+ * Ethernet (on SOC imx FEC)
+ */
+#define CONFIG_FEC_MXC
+#define CONFIG_FEC_MXC_PHYADDR		0x1f
+#define CONFIG_MII				/* MII PHY management	*/
+
+/*
+ * FPGA
+ */
+#define CONFIG_FPGA			CONFIG_SYS_SPARTAN3
+#define CONFIG_FPGA_COUNT		1
+#define CONFIG_FPGA_XILINX
+#define CONFIG_FPGA_SPARTAN3
+#define CONFIG_SYS_FPGA_WAIT		20000 /* 20 ms */
+#define CONFIG_SYS_FPGA_PROG_FEEDBACK
+#define CONFIG_SYS_FPGA_CHECK_CTRLC
+#define CONFIG_SYS_FPGA_CHECK_ERROR
+
+/*
+ * Fuses - IIM
+ */
+#ifdef CONFIG_CMD_IMX_FUSE
+#define IIM_MAC_BANK		0
+#define IIM_MAC_ROW		5
+#define IIM0_SCC_KEY		11
+#define IIM1_SUID		1
+#endif
+
+/*
+ * I2C
+ */
+
+#ifdef CONFIG_CMD_I2C
+#define CONFIG_HARD_I2C
+#define CONFIG_I2C_MXC
+#define CONFIG_I2C_MULTI_BUS
+#define CONFIG_SYS_I2C_BASE		IMX_I2C1_BASE
+#define CONFIG_SYS_I2C_SPEED		100000	/* 100 kHz */
+#define CONFIG_SYS_I2C_SLAVE		0x7F
+#define CONFIG_SYS_I2C_NOPROBES		{ }
+
+#ifdef CONFIG_CMD_EEPROM
+# define CONFIG_SYS_I2C_EEPROM_ADDR	0x50	/* EEPROM 24LC02 */
+# define CONFIG_SYS_I2C_EEPROM_ADDR_LEN 1	/* bytes of address */
+#define CONFIG_SYS_EEPROM_PAGE_WRITE_BITS	3
+#define CONFIG_SYS_EEPROM_PAGE_WRITE_DELAY_MS	10	/* msec */
+#endif /* CONFIG_CMD_EEPROM */
+#endif /* CONFIG_CMD_I2C */
+
+/*
+ * SD/MMC
+ */
+#ifdef CONFIG_CMD_MMC
+#define CONFIG_MMC
+#define CONFIG_GENERIC_MMC
+#define CONFIG_MXC_MMC
+#define CONFIG_MXC_MCI_REGS_BASE	0x10014000
+#endif
+
+/*
+ * RTC
+ */
+#ifdef CONFIG_CMD_DATE
+#define CONFIG_RTC_DS1374
+#define CONFIG_SYS_RTC_BUS_NUM		0
+#endif /* CONFIG_CMD_DATE */
+
+/*
+ * Clocks
+ */
+#define	CONFIG_SYS_HZ			1000	/* Ticks per second */
+
+/*
+ * PLL
+ *
+ *  31 | x  |x| x x x x |x x x x x x x x x x |x x|x x x x|x x x x x x x x x x| 0
+ *     |CPLM|X|----PD---|--------MFD---------|XXX|--MFI--|-----MFN-----------|
+ */
+#define CONFIG_MX27_CLK32		32768	/* 32768 or 32000 Hz crystal */
+
+#if (ACFG_SDRAM_MBYTE_SYZE == 64) /* micron MT46H16M32LF -6 */
+/* micron 64MB */
+#define PHYS_SDRAM_1_SIZE			0x04000000 /* 64 MB */
+#define PHYS_SDRAM_2_SIZE			0x04000000 /* 64 MB */
+#endif
+
+#if (ACFG_SDRAM_MBYTE_SYZE == 128)
+/* micron 128MB */
+#define PHYS_SDRAM_1_SIZE			0x08000000 /* 128 MB */
+#define PHYS_SDRAM_2_SIZE			0x08000000 /* 128 MB */
+#endif
+
+#if (ACFG_SDRAM_MBYTE_SYZE == 256)
+/* micron 256MB */
+#define PHYS_SDRAM_1_SIZE			0x10000000 /* 256 MB */
+#define PHYS_SDRAM_2_SIZE			0x10000000 /* 256 MB */
+#endif
+
+#endif /* __CONFIG_H */
-- 
1.7.4.4

^ permalink raw reply related	[flat|nested] 13+ messages in thread

* [U-Boot] [PATCH v4 2/4] apf27: add support for the armadeus APF27 board
  2013-07-28 20:16 ` [U-Boot] [PATCH v4 2/4] apf27: add support for the armadeus APF27 board Philippe Reynes
@ 2013-07-29  9:43   ` Stefano Babic
  2013-08-01 17:12     ` trem
  0 siblings, 1 reply; 13+ messages in thread
From: Stefano Babic @ 2013-07-29  9:43 UTC (permalink / raw)
  To: u-boot

Hi Philippe,

On 28/07/2013 22:16, Philippe Reynes wrote:


> +#
> +# See file CREDITS for list of people who contributed to this
> +# project.
> +#
> +# This program is free software; you can redistribute it and/or
> +# modify it under the terms of the GNU General Public License as
> +# published by the Free Software Foundation; either version 2 of
> +# the License, or (at your option) any later version.
> +#
> +# This program is distributed in the hope that it will be useful,
> +# but WITHOUT ANY WARRANTY; without even the implied warranty of
> +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
> +# GNU General Public License for more details.
> +#
> +# You should have received a copy of the GNU General Public License
> +# along with this program; if not, write to the Free Software
> +# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
> +# MA 02111-1307 USA
> +#
> +

commit eca3aeb352c964bdb28b8e191d6326370245e03f introduces a short way
to add licence to a file. Instead of the full text, a simply identifier
is added to the header.

Please replaces the whole text with the identifier, for GPL2+ you should
add:


# SPDX-License-Identifier:     GPL-2.0+

This issue must be fixed globally.

> +include $(TOPDIR)/config.mk
> +
> +LIB	= $(obj)lib$(BOARD).o
> +
> +ifndef CONFIG_SPL_BUILD
> +COBJS	:= apf27.o
> +endif
> +
> +ifdef CONFIG_SPL_BUILD
> +SOBJS  := splboot.o
> +endif
> +

Maybe you can use here a ifndef...else syntax else duplicating the test.

> diff --git a/board/armadeus/apf27/apf27.c b/board/armadeus/apf27/apf27.c
> new file mode 100644
> index 0000000..f64c71a
> --- /dev/null
> +++ b/board/armadeus/apf27/apf27.c
> @@ -0,0 +1,356 @@
> +/*
> + * Copyright (C) 2007 Sascha Hauer, Pengutronix
> + * Copyright (C) 2008-2012 Eric Jarrige <eric.jarrige@armadeus.org>
> + *
> + * This program is free software; you can redistribute it and/or
> + * modify it under the terms of the GNU General Public License as
> + * published by the Free Software Foundation; either version 2 of
> + * the License, or (at your option) any later version.
> + *
> + * This program is distributed in the hope that it will be useful,
> + * but WITHOUT ANY WARRANTY; without even the implied warranty of
> + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
> + * GNU General Public License for more details.
> + *
> + * You should have received a copy of the GNU General Public License
> + * along with this program; if not, write to the Free Software
> + * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
> + * MA 02111-1307 USA
> + *
> + */
> +
> +#include <common.h>
> +#include <environment.h>
> +#include <jffs2/jffs2.h>
> +#include <nand.h>
> +#include <netdev.h>
> +#include <asm/io.h>
> +#include <asm/arch/imx-regs.h>
> +#include <asm/arch/gpio.h>
> +#include <asm/errno.h>
> +#include "apf27.h"
> +#include "crc.h"
> +
> +DECLARE_GLOBAL_DATA_PTR;
> +
> +static inline void wait(void)
> +{
> +	int i;
> +
> +	for (i = 0; i < 0x10000; i++)
> +		asm volatile ("nop");
> +}

There is already a function doing this, rather accessible only to armv7,
whose name is sdelay() - simple spin loop.
At least I suggest to use the same name. However, the function uses
general ARM asm instructions and it could be used by i.mx27, too. Maybe
can we move it into arch/arm/lib/ ? I have added Albert as ARM Custodian
for his opinion on this point.

> +
> +/*
> + * Fuse bank 1 row 8 is "reserved for future use" and therefore available for
> + * customer use. The APF27 board uses this fuse to store the board revision:
> + * 0: initial board revision
> + * 1: first revision - Presence of the second RAM chip on the board is blown in
> + *     fuse bank 1 row 9  bit 0 - No hardware change
> + * N: to be defined
> + */
> +static u32 get_board_rev(void)
> +{
> +	struct iim_regs *iim = (struct iim_regs *)IMX_IIM_BASE;
> +
> +	return readl(&iim->bank[1].fuse_regs[8]);
> +}
> +
> +/*
> + * Fuse bank 1 row 9 is "reserved for future use" and therefore available for
> + * customer use. The APF27 board revision 1 uses the bit 0 to permanently store
> + * the presence of the second RAM chip
> + * 0: AFP27 with 1 RAM of 64 MiB
> + * 1: AFP27 with 2 RAM chips of 64 MiB each (128MB)
> + */
> +static int get_num_ram_bank(void)
> +{
> +	struct iim_regs *iim = (struct iim_regs *)IMX_IIM_BASE;
> +	int nr_dram_banks = 1;
> +
> +	if ((get_board_rev() > 0) && (CONFIG_NR_DRAM_BANKS > 1))
> +		nr_dram_banks += readl(&iim->bank[1].fuse_regs[9]) & 0x01;
> +	else
> +		nr_dram_banks = CONFIG_NR_DRAM_POPULATED;
> +
> +	return nr_dram_banks;
> +}
> +
> +static void apf27_port_init(int port, u32 gpio_dr, u32 ocr1, u32 ocr2,
> +			    u32 iconfa1, u32 iconfa2, u32 iconfb1, u32 iconfb2,
> +			    u32 icr1, u32 icr2, u32 imr, u32 gpio_dir, u32 gpr,
> +			    u32 puen, u32 gius)
> +{
> +	struct gpio_port_regs *regs = (struct gpio_port_regs *)IMX_GPIO_BASE;
> +
> +	writel(gpio_dr,   &regs->port[port].gpio_dr);

We have general gpio functions in u-boot to set/get gpios.

> +	writel(ocr1,      &regs->port[port].ocr1);
> +	writel(ocr2,      &regs->port[port].ocr2);
> +	writel(iconfa1,   &regs->port[port].iconfa1);
> +	writel(iconfa2,   &regs->port[port].iconfa2);
> +	writel(iconfb1,   &regs->port[port].iconfb1);
> +	writel(iconfb2,   &regs->port[port].iconfb2);
> +	writel(icr1,      &regs->port[port].icr1);
> +	writel(icr2,      &regs->port[port].icr2);
> +	writel(imr,       &regs->port[port].imr);
> +	writel(gpio_dir,  &regs->port[port].gpio_dir);
> +	writel(gpr,       &regs->port[port].gpr);
> +	writel(puen,      &regs->port[port].puen);
> +	writel(gius,      &regs->port[port].gius);
> +}
> +
> +#define APF27_PORT_INIT(n) apf27_port_init(PORT##n, ACFG_DR_##n##_VAL,	  \
> +	ACFG_OCR1_##n##_VAL, ACFG_OCR2_##n##_VAL, ACFG_ICFA1_##n##_VAL,	  \
> +	ACFG_ICFA2_##n##_VAL, ACFG_ICFB1_##n##_VAL, ACFG_ICFB2_##n##_VAL, \
> +	ACFG_ICR1_##n##_VAL, ACFG_ICR2_##n##_VAL, ACFG_IMR_##n##_VAL,	  \
> +	ACFG_DDIR_##n##_VAL, ACFG_GPR_##n##_VAL, ACFG_PUEN_##n##_VAL,	  \
> +	ACFG_GIUS_##n##_VAL)
> +
> +void apf27_gpio_init(void)
> +{
> +	APF27_PORT_INIT(A);
> +	APF27_PORT_INIT(B);
> +	APF27_PORT_INIT(C);
> +	APF27_PORT_INIT(D);
> +	APF27_PORT_INIT(E);
> +	APF27_PORT_INIT(F);
> +}
> +
> +static int apf27_devices_init(void)
> +{
> +	struct gpio_port_regs *regs = (struct gpio_port_regs *)IMX_GPIO_BASE;
> +	int i;
> +	unsigned int mode[] = {
> +		PD0_AIN_FEC_TXD0,
> +		PD1_AIN_FEC_TXD1,
> +		PD2_AIN_FEC_TXD2,
> +		PD3_AIN_FEC_TXD3,
> +		PD4_AOUT_FEC_RX_ER,
> +		PD5_AOUT_FEC_RXD1,
> +		PD6_AOUT_FEC_RXD2,
> +		PD7_AOUT_FEC_RXD3,
> +		PD8_AF_FEC_MDIO,
> +		PD9_AIN_FEC_MDC | GPIO_PUEN,
> +		PD10_AOUT_FEC_CRS,
> +		PD11_AOUT_FEC_TX_CLK,
> +		PD12_AOUT_FEC_RXD0,
> +		PD13_AOUT_FEC_RX_DV,
> +		PD14_AOUT_FEC_CLR,
> +		PD15_AOUT_FEC_COL,
> +		PD16_AIN_FEC_TX_ER,
> +		PF23_AIN_FEC_TX_EN,
> +		PE12_PF_UART1_TXD,
> +		PE13_PF_UART1_RXD,
> +		PC5_PF_I2C2_DATA,
> +		PC6_PF_I2C2_CLK,
> +		PD17_PF_I2C_DATA,
> +		PD18_PF_I2C_CLK,
> +	};
> +
> +	for (i = 0; i < ARRAY_SIZE(mode); i++)
> +		imx_gpio_mode(mode[i]);
> +
> +#ifdef CONFIG_MXC_MMC
> +	mx27_sd2_init_pins();
> +	imx_gpio_mode((GPIO_PORTF | GPIO_OUT | GPIO_PUEN | GPIO_GPIO | 16));
> +	writel(readl(&regs->port[PORTF].gpio_dr) | (1 << 16),
> +	       &regs->port[PORTF].gpio_dr);

Can you use the gpio accessors (gpio_set_value() in this case) ?


> +#endif
> +#if defined(CONFIG_I2C_MXC) && defined(CONFIG_I2C_MULTI_BUS)
> +	bus_i2c_init(IMX_I2C1_BASE, CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE,
> +		     NULL, NULL);
> +	bus_i2c_init(IMX_I2C2_BASE, CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE,
> +		     NULL, NULL);
> +#endif
> +	return 0;
> +}
> +
> +static void board_setup_aipi(void)
> +{
> +	struct aipi_regs *aipi1 = (struct aipi_regs *)IMX_AIPI1_BASE;
> +	struct aipi_regs *aipi2 = (struct aipi_regs *)IMX_AIPI2_BASE;
> +	struct system_control_regs *system =
> +		(struct system_control_regs *)IMX_SYSTEM_CTL_BASE;
> +	u32 gpcr;
> +
> +	/* setup AIPI1 and AIPI2 */
> +	writel(ACFG_AIPI1_PSR0_VAL, &aipi1->psr0);
> +	writel(ACFG_AIPI1_PSR1_VAL, &aipi1->psr1);
> +	writel(ACFG_AIPI2_PSR0_VAL, &aipi2->psr0);
> +	writel(ACFG_AIPI2_PSR1_VAL, &aipi2->psr1);
> +
> +	/* Change SDRAM signal strengh */
> +	gpcr = readl(&system->gpcr);
> +	gpcr |= ACFG_GPCR_VAL;
> +	writel(gpcr, &system->gpcr);
> +}
> +
> +static void board_setup_csx(void)
> +{
> +	struct weim_regs *weim = (struct weim_regs *)IMX_WEIM_BASE;
> +
> +	writel(ACFG_CS0U_VAL, &weim->cs0u);
> +	writel(ACFG_CS0L_VAL, &weim->cs0l);
> +	writel(ACFG_CS0A_VAL, &weim->cs0a);
> +
> +	writel(ACFG_CS1U_VAL, &weim->cs1u);
> +	writel(ACFG_CS1L_VAL, &weim->cs1l);
> +	writel(ACFG_CS1A_VAL, &weim->cs1a);
> +
> +	writel(ACFG_CS2U_VAL, &weim->cs2u);
> +	writel(ACFG_CS2L_VAL, &weim->cs2l);
> +	writel(ACFG_CS2A_VAL, &weim->cs2a);
> +
> +	writel(ACFG_CS3U_VAL, &weim->cs3u);
> +	writel(ACFG_CS3L_VAL, &weim->cs3l);
> +	writel(ACFG_CS3A_VAL, &weim->cs3a);
> +
> +	writel(ACFG_CS4U_VAL, &weim->cs4u);
> +	writel(ACFG_CS4L_VAL, &weim->cs4l);
> +	writel(ACFG_CS4A_VAL, &weim->cs4a);
> +
> +	writel(ACFG_CS5U_VAL, &weim->cs5u);
> +	writel(ACFG_CS5L_VAL, &weim->cs5l);
> +	writel(ACFG_CS5A_VAL, &weim->cs5a);
> +
> +	writel(ACFG_EIM_VAL, &weim->eim);
> +}
> +
> +static void board_setup_port(void)
> +{
> +	struct system_control_regs *system =
> +		(struct system_control_regs *)IMX_SYSTEM_CTL_BASE;
> +
> +	writel(ACFG_FMCR_VAL, &system->fmcr);
> +}
> +
> +static void board_setup_clock(void)
> +{
> +	struct pll_regs *pll = (struct pll_regs *)IMX_PLL_BASE;
> +	u32 cscr;
> +
> +	/* disable MPLL/SPLL first */
> +	cscr = readl(&pll->cscr);
> +	cscr &= ~(CSCR_MPEN | CSCR_SPEN);
> +	writel(cscr, &pll->cscr);
> +
> +	/* pll clock initialization */
> +	writel(ACFG_MPCTL0_VAL, &pll->mpctl0);
> +	writel(ACFG_SPCTL0_VAL, &pll->spctl0);
> +
> +	cscr = ACFG_CSCR_VAL | CSCR_MPLL_RESTART | CSCR_SPLL_RESTART;
> +	writel(cscr, &pll->cscr);
> +
> +	/* add some delay here */
> +	wait();
> +
> +	/* peripheral clock divider */
> +	writel(ACFG_PCDR0_VAL, &pll->pcdr0);
> +	writel(ACFG_PCDR1_VAL, &pll->pcdr1);
> +
> +	/* Configure PCCR0 and PCCR1 */
> +	writel(ACFG_PCCR0_VAL, &pll->pccr0);
> +	writel(ACFG_PCCR1_VAL, &pll->pccr1);
> +}
> +
> +int board_early_init_f(void)
> +{
> +	board_setup_aipi();
> +	board_setup_csx();
> +	board_setup_port();
> +	board_setup_clock();
> +
> +	return 0;
> +}
> +
> +int board_init(void)
> +{
> +	gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100;
> +
> +	apf27_gpio_init();
> +	apf27_devices_init();
> +
> +	return 0;
> +}
> +
> +int dram_init(void)
> +{
> +	/* dram_init must store complete ramsize in gd->ram_size */
> +	if (get_num_ram_bank() > 1) {
> +		gd->ram_size = PHYS_SDRAM_2 - CONFIG_SYS_SDRAM_BASE
> +			+ get_ram_size((void *)PHYS_SDRAM_2, PHYS_SDRAM_2_SIZE);

To my understanding: I know that the result is the same, but you mix
here dynamic computed with static values. Why do you not call
get_ram_size() twice, that is:

gd->ram_size = get_ram_size((void *)PHYS_SDRAM_1,			
	PHYS_SDRAM_1_SIZE);
if (get_num_ram_bank() > 1) {
  gd->ram_size += get_ram_size((void *)PHYS_SDRAM_2, PHYS_SDRAM_2_SIZE);
}


> +/*
> + * Miscellaneous initialisation
> + */
> +int misc_init_r(void)
> +{
> +	char *s;
> +	u_char *firmware_buffer = (u_char *)(CONFIG_SYS_LOAD_ADDR +
> +					      CONFIG_SYS_MONITOR_LEN);
> +	size_t size	= 0;
> +	size_t offset	= -1;
> +#if defined(CONFIG_FPGA)

You add FPGA in a later patch, that then modify this new file. This code
makes sense only when the FPGA patch is applied. But as you are adding a
new board, it makes sense that you squash patch 3/4 and patch2/4.

> +	char *autoload = getenv("firmware_autoload");
> +#endif
> +	u8 pnum;
> +	struct mtd_device *dev;
> +	struct part_info *part;
> +
> +	/* detect compatibility issue of environment version */
> +	s = getenv("env_version");
> +	if ((NULL == s) || (0 != strcmp(s, CONFIG_ENV_VERSION))) {
> +		char *const vars[] = {"flash_reset_env"};
> +		printf("*** Warning - Environment version change suggests: ");
> +		printf("run flash_reset_env; reset\n");
> +		set_default_vars(1, vars);
> +	}

The code here depends on the environment - only to better understanding,
have you considered to move these tests in a script, too ? I understand
that you need some plausibility tests after u-boot has completed and
before going into the main loop. What about using the PREBOOT variable ?
You could then set preboot to do exactly what you want in a script while
now you have the logic split between code (here) and environment.

> +
> +	/* Unlock whole flash but U-Boot */
> +	if (mtdparts_init() == 0) {
> +		if (find_dev_and_part("u-boot",
> +				      &dev, &pnum, &part) == 0) {
> +			offset = part->size;
> +		}
> +	}
> +
> +	if (nand_unlock(&nand_info[0], offset, nand_info[0].size - offset, 0))
> +		printf("NAND flash lock/unlocked failed\n");
> +

Also this could be part of a script, but you decide what is better for
your board.

> +int checkboard(void)
> +{
> +	printf("Board: Armadeus APF27 revision %d\n", get_board_rev());
> +	return 0;
> +}
> +
> +void lowlevel_init(void)
> +{
> +}

It looks like you had a missing function by linking. Maybe we can add a
__weak function to general i.mx27 code, dropping here. An empty function
makes no sense.

> diff --git a/board/armadeus/apf27/apf27.h b/board/armadeus/apf27/apf27.h
> new file mode 100644
> index 0000000..b0a4473
> --- /dev/null
> +++ b/board/armadeus/apf27/apf27.h
> @@ -0,0 +1,450 @@
> +#ifndef __APF27_H
> +#define __APF27_H
> +
> +/* FPGA program pin configuration */
> +#define ACFG_FPGA_PWR	(GPIO_PORTF | 19)	/* FPGA prog pin  */
> +#define ACFG_FPGA_PRG	(GPIO_PORTF | 11)	/* FPGA prog pin  */
> +#define ACFG_FPGA_CLK	(GPIO_PORTF | 15)	/* FPGA clk pin   */
> +#define ACFG_FPGA_RDATA	0xD6000000		/* FPGA data addr  */
> +#define ACFG_FPGA_WDATA	0xD6000000		/* FPGA data addr  */
> +#define ACFG_FPGA_INIT	(GPIO_PORTF | 12)	/* FPGA init pin  */
> +#define ACFG_FPGA_DONE	(GPIO_PORTF | 9)	/* FPGA done pin  */
> +#define ACFG_FPGA_RW	(GPIO_PORTF | 21)	/* FPGA done pin  */
> +#define ACFG_FPGA_CS	(GPIO_PORTF | 22)	/* FPGA done pin  */
> +#define ACFG_FPGA_SUSPEND (GPIO_PORTF | 10)	/* FPGA done pin  */
> +#define ACFG_FPGA_RESET	(GPIO_PORTF | 7)	/* FPGA done pin  */
> +
> +/*
> + * MPU CLOCK source before PLL
> + * ACFG_CLK_FREQ (2/3 MPLL clock or ext 266 MHZ)
> + */
> +#define ACFG_MPCTL0_VAL		0x01EF15D5	/* 399.000 MHz */
> +#define ACFG_MPCTL1_VAL		0
> +#define CONFIG_MPLL_FREQ	399
> +
> +#define ACFG_CLK_FREQ	(CONFIG_MPLL_FREQ*2/3) /* 266 MHz */
> +
> +/* Serial clock source before PLL (should be named ACFG_SYSPLL_CLK_FREQ)*/
> +#define ACFG_SPCTL0_VAL		0x0475206F	/* 299.99937 MHz */
> +#define ACFG_SPCTL1_VAL		0
> +#define CONFIG_SPLL_FREQ	300		/* MHz */
> +
> +/* ARM bus frequency (have to be a CONFIG_MPLL_FREQ ratio) */
> +#define CONFIG_ARM_FREQ		399	/* up to 400 MHz */
> +
> +/* external bus frequency (have to be a ACFG_CLK_FREQ ratio) */
> +#define CONFIG_HCLK_FREQ	133	/* (ACFG_CLK_FREQ/2) */
> +
> +#define CONFIG_PERIF1_FREQ	16	/* 16.625 MHz UART, GPT, PWM*/
> +#define CONFIG_PERIF2_FREQ	33	/* 33.25 MHz CSPI and SDHC */
> +#define CONFIG_PERIF3_FREQ	33	/* 33.25 MHz LCD*/
> +#define CONFIG_PERIF4_FREQ	33	/* 33.25 MHz CSI*/
> +#define CONFIG_SSI1_FREQ	66	/* 66.50 MHz SSI1*/
> +#define CONFIG_SSI2_FREQ	66	/* 66.50 MHz SSI2*/
> +#define CONFIG_MSHC_FREQ	66	/* 66.50 MHz MSHC*/
> +#define CONFIG_H264_FREQ	66	/* 66.50 MHz H264*/
> +#define CONFIG_CLK0_DIV      3  /* Divide CLK0 by 4 */
> +#define CONFIG_CLK0_EN       1  /* CLK0 enabled */
> +
> +/* external bus frequency (have to be a CONFIG_HCLK_FREQ ratio) */
> +#define CONFIG_NFC_FREQ		44	/* NFC Clock up to 44 MHz wh 133MHz*/
> +
> +/* external serial bus frequency (have to be a CONFIG_SPLL_FREQ ratio) */
> +#define CONFIG_USB_FREQ		60	/* 60 MHz */
> +
> +/*
> + * SDRAM
> + */
> +#if (ACFG_SDRAM_MBYTE_SYZE == 64) /* micron MT46H16M32LF -6 */
> +/* micron 64MB */
> +#define ACFG_SDRAM_NUM_COL		9  /* 8, 9, 10 or 11
> +						      column address bits */
> +#define ACFG_SDRAM_NUM_ROW		13 /* 11, 12 or 13
> +						      row address bits */
> +#define ACFG_SDRAM_REFRESH		3  /* 0=OFF 1=2048
> +						      2=4096 3=8192 refresh */
> +#define ACFG_SDRAM_EXIT_PWD		25 /* ns exit power
> +						      down delay */
> +#define ACFG_SDRAM_W2R_DELAY		1  /* write to read
> +						      cycle delay > 0 */
> +#define ACFG_SDRAM_ROW_PRECHARGE_DELAY	18 /* ns */
> +#define ACFG_SDRAM_TMRD_DELAY		2  /* Load mode register
> +						      cycle delay 1..4 */

I think there are some code style issues due to multiline comments.

I run tools/checkpatch and I get 310 errors from this patch, most of
them due to DOS line endigs. All checkpatch errors must be fixed.

> +/* CS0 configuration for 16 bit nor flash */
> +#define ACFG_CS0U_VAL	0x0000CC03
> +#define ACFG_CS0L_VAL	0xa0330D01
> +#define ACFG_CS0A_VAL	0x00220800
> +
> +#define ACFG_CS1U_VAL	0x00000f00
> +#define ACFG_CS1L_VAL	0x00000D01
> +#define ACFG_CS1A_VAL	0
> +
> +#define ACFG_CS2U_VAL	0
> +#define ACFG_CS2L_VAL	0
> +#define ACFG_CS2A_VAL	0
> +
> +#define ACFG_CS3U_VAL	0
> +#define ACFG_CS3L_VAL	0
> +#define ACFG_CS3A_VAL	0
> +
> +#define ACFG_CS4U_VAL	0
> +#define ACFG_CS4L_VAL	0
> +#define ACFG_CS4A_VAL	0
> +
> +/* FPGA 16 bit data bus */
> +#define ACFG_CS5U_VAL	0x00000600
> +#define ACFG_CS5L_VAL	0x00000D01
> +#define ACFG_CS5A_VAL	0
> +
> +#define ACFG_EIM_VAL	0x00002200
> +
> +
> +/*
> + * FPGA specific settings
> + */
> +
> +/* CLKO */
> +#define ACFG_CCSR_VAL 0x00000305
> +/* drive strength CLKO set to 2*/
> +#define ACFG_DSCR10_VAL 0x00020000
> +/* drive strength A1..A12 set to 2*/
> +#define ACFG_DSCR3_VAL 0x02AAAAA8
> +/* drive strength ctrl*/
> +#define ACFG_DSCR7_VAL 0x00020880
> +/* drive strength data*/
> +#define ACFG_DSCR2_VAL 0xAAAAAAAA
> +
> +
> +/*
> + * Default configuration for GPIOs and peripherals
> + */
> +#define ACFG_DDIR_A_VAL		0x00000000
> +#define ACFG_OCR1_A_VAL		0x00000000
> +#define ACFG_OCR2_A_VAL		0x00000000
> +#define ACFG_ICFA1_A_VAL		0xFFFFFFFF
> +#define ACFG_ICFA2_A_VAL		0xFFFFFFFF
> +#define ACFG_ICFB1_A_VAL		0xFFFFFFFF
> +#define ACFG_ICFB2_A_VAL		0xFFFFFFFF
> +#define ACFG_DR_A_VAL		0x00000000
> +#define ACFG_GIUS_A_VAL		0xFFFFFFFF
> +#define ACFG_ICR1_A_VAL		0x00000000
> +#define ACFG_ICR2_A_VAL		0x00000000
> +#define ACFG_IMR_A_VAL		0x00000000
> +#define ACFG_GPR_A_VAL		0x00000000
> +#define ACFG_PUEN_A_VAL		0xFFFFFFFF
> +
> +#define ACFG_DDIR_B_VAL		0x00000000
> +#define ACFG_OCR1_B_VAL		0x00000000
> +#define ACFG_OCR2_B_VAL		0x00000000
> +#define ACFG_ICFA1_B_VAL		0xFFFFFFFF
> +#define ACFG_ICFA2_B_VAL		0xFFFFFFFF
> +#define ACFG_ICFB1_B_VAL		0xFFFFFFFF
> +#define ACFG_ICFB2_B_VAL		0xFFFFFFFF
> +#define ACFG_DR_B_VAL		0x00000000
> +#define ACFG_GIUS_B_VAL		0xFF3FFFF0
> +#define ACFG_ICR1_B_VAL		0x00000000
> +#define ACFG_ICR2_B_VAL		0x00000000
> +#define ACFG_IMR_B_VAL		0x00000000
> +#define ACFG_GPR_B_VAL		0x00000000
> +#define ACFG_PUEN_B_VAL		0xFFFFFFFF
> +
> +#define ACFG_DDIR_C_VAL		0x00000000
> +#define ACFG_OCR1_C_VAL		0x00000000
> +#define ACFG_OCR2_C_VAL		0x00000000
> +#define ACFG_ICFA1_C_VAL		0xFFFFFFFF
> +#define ACFG_ICFA2_C_VAL		0xFFFFFFFF
> +#define ACFG_ICFB1_C_VAL		0xFFFFFFFF
> +#define ACFG_ICFB2_C_VAL		0xFFFFFFFF
> +#define ACFG_DR_C_VAL		0x00000000
> +#define ACFG_GIUS_C_VAL		0xFFFFC07F
> +#define ACFG_ICR1_C_VAL		0x00000000
> +#define ACFG_ICR2_C_VAL		0x00000000
> +#define ACFG_IMR_C_VAL		0x00000000
> +#define ACFG_GPR_C_VAL		0x00000000
> +#define ACFG_PUEN_C_VAL		0xFFFFFF87
> +
> +#define ACFG_DDIR_D_VAL		0x00000000
> +#define ACFG_OCR1_D_VAL		0x00000000
> +#define ACFG_OCR2_D_VAL		0x00000000
> +#define ACFG_ICFA1_D_VAL		0xFFFFFFFF
> +#define ACFG_ICFA2_D_VAL		0xFFFFFFFF
> +#define ACFG_ICFB1_D_VAL		0xFFFFFFFF
> +#define ACFG_ICFB2_D_VAL		0xFFFFFFFF
> +#define ACFG_DR_D_VAL		0x00000000
> +#define ACFG_GIUS_D_VAL		0xFFFFFFFF
> +#define ACFG_ICR1_D_VAL		0x00000000
> +#define ACFG_ICR2_D_VAL		0x00000000
> +#define ACFG_IMR_D_VAL		0x00000000
> +#define ACFG_GPR_D_VAL		0x00000000
> +#define ACFG_PUEN_D_VAL		0xFFFFFFFF
> +
> +#define ACFG_DDIR_E_VAL		0x00000000
> +#define ACFG_OCR1_E_VAL		0x00000000
> +#define ACFG_OCR2_E_VAL		0x00000000
> +#define ACFG_ICFA1_E_VAL		0xFFFFFFFF
> +#define ACFG_ICFA2_E_VAL		0xFFFFFFFF
> +#define ACFG_ICFB1_E_VAL		0xFFFFFFFF
> +#define ACFG_ICFB2_E_VAL		0xFFFFFFFF
> +#define ACFG_DR_E_VAL		0x00000000
> +#define ACFG_GIUS_E_VAL		0xFCFFCCF8
> +#define ACFG_ICR1_E_VAL		0x00000000
> +#define ACFG_ICR2_E_VAL		0x00000000
> +#define ACFG_IMR_E_VAL		0x00000000
> +#define ACFG_GPR_E_VAL		0x00000000
> +#define ACFG_PUEN_E_VAL		0xFFFFFFFF
> +
> +#define ACFG_DDIR_F_VAL		0x00000000
> +#define ACFG_OCR1_F_VAL		0x00000000
> +#define ACFG_OCR2_F_VAL		0x00000000
> +#define ACFG_ICFA1_F_VAL		0xFFFFFFFF
> +#define ACFG_ICFA2_F_VAL		0xFFFFFFFF
> +#define ACFG_ICFB1_F_VAL		0xFFFFFFFF
> +#define ACFG_ICFB2_F_VAL		0xFFFFFFFF
> +#define ACFG_DR_F_VAL		0x00000000
> +#define ACFG_GIUS_F_VAL		0xFF7F8000
> +#define ACFG_ICR1_F_VAL		0x00000000
> +#define ACFG_ICR2_F_VAL		0x00000000
> +#define ACFG_IMR_F_VAL		0x00000000
> +#define ACFG_GPR_F_VAL		0x00000000
> +#define ACFG_PUEN_F_VAL		0xFFFFFFFF
> +
> +/* Enforce DDR signal strengh & enable USB/PP/DMA burst override bits */
> +#define ACFG_GPCR_VAL		0x0003000F
> +
> +#define ACFG_ESDMISC_VAL	ESDMISC_LHD+ESDMISC_MDDREN
> +
> +/* FMCR select num LPDDR RAMs and nand 16bits, 2KB pages */
> +#if (CONFIG_NR_DRAM_BANKS == 1)

But is the number of banks not detected at runtime ? And
CONFIG_NR_DRAM_BANKS is always 2 in your yonfiguration file, that means
there is no case with only one bank and you should drop this dead code.

> +#define ACFG_FMCR_VAL 0xFFFFFFF9
> +#elif (CONFIG_NR_DRAM_BANKS == 2)
> +#define ACFG_FMCR_VAL 0xFFFFFFFB
> +#endif
> +
> +#define ACFG_AIPI1_PSR0_VAL	0x20040304
> +#define ACFG_AIPI1_PSR1_VAL	0xDFFBFCFB
> +#define ACFG_AIPI2_PSR0_VAL	0x00000000
> +#define ACFG_AIPI2_PSR1_VAL	0xFFFFFFFF
> +
> +/* PCCR enable DMA FEC I2C1 IIM SDHC1 */
> +#define ACFG_PCCR0_VAL		0x05070410
> +#define ACFG_PCCR1_VAL		0xA14A0608
> +
> +/*
> + * From here, there should not be any user configuration.
> + * All Equations are automatic
> + */
> +
> +/* fixme none integer value (7.5ns) => 2*hclock = 15ns */
> +#define ACFG_2XHCLK_LGTH	(2000/CONFIG_HCLK_FREQ)	/* ns */
> +
> +/* USB 60 MHz ; ARM up to 400; HClK up to 133MHz*/
> +#define CSCR_MASK 0x0300800D
> +
> +#define ACFG_CSCR_VAL						\
> +	(CSCR_MASK						\
> +	|((((CONFIG_SPLL_FREQ/CONFIG_USB_FREQ)-1)&0x07) << 28)	\
> +	|((((CONFIG_MPLL_FREQ/CONFIG_ARM_FREQ)-1)&0x03) << 12)	\
> +	|((((ACFG_CLK_FREQ/CONFIG_HCLK_FREQ)-1)&0x03) << 8))
> +
> +/* SSIx CLKO NFC H264 MSHC */
> +#define ACFG_PCDR0_VAL\
> +	(((((ACFG_CLK_FREQ/CONFIG_MSHC_FREQ)-1)&0x3F)<<0)	\
> +	|((((CONFIG_HCLK_FREQ/CONFIG_NFC_FREQ)-1)&0x0F)<<6)	\
> +	|(((((ACFG_CLK_FREQ/CONFIG_H264_FREQ)-2)*2)&0x3F)<<10)\
> +	|(((((ACFG_CLK_FREQ/CONFIG_SSI1_FREQ)-2)*2)&0x3F)<<16)\
> +	|(((CONFIG_CLK0_DIV)&0x07)<<22)\
> +	|(((CONFIG_CLK0_EN)&0x01)<<25)\
> +	|(((((ACFG_CLK_FREQ/CONFIG_SSI2_FREQ)-2)*2)&0x3F)<<26))
> +
> +/* PERCLKx  */
> +#define ACFG_PCDR1_VAL\
> +	(((((ACFG_CLK_FREQ/CONFIG_PERIF1_FREQ)-1)&0x3F)<<0)	\
> +	|((((ACFG_CLK_FREQ/CONFIG_PERIF2_FREQ)-1)&0x3F)<<8)	\
> +	|((((ACFG_CLK_FREQ/CONFIG_PERIF3_FREQ)-1)&0x3F)<<16)	\
> +	|((((ACFG_CLK_FREQ/CONFIG_PERIF4_FREQ)-1)&0x3F)<<24))
> +
> +/* SDRAM controller programming Values */
> +#if (((2*ACFG_SDRAM_CLOCK_CYCLE_CL_1) > (3*ACFG_2XHCLK_LGTH)) || \
> +	(ACFG_SDRAM_CLOCK_CYCLE_CL_1 < 1))
> +#define REG_FIELD_SCL_VAL 3
> +#define REG_FIELD_SCLIMX_VAL 0
> +#else
> +#define REG_FIELD_SCL_VAL\
> +	((2*ACFG_SDRAM_CLOCK_CYCLE_CL_1+ACFG_2XHCLK_LGTH-1)/ \
> +		ACFG_2XHCLK_LGTH)
> +#define REG_FIELD_SCLIMX_VAL REG_FIELD_SCL_VAL
> +#endif
> +
> +#if ((2*ACFG_SDRAM_RC_DELAY) > (16*ACFG_2XHCLK_LGTH))
> +#define REG_FIELD_SRC_VAL 0
> +#else
> +#define REG_FIELD_SRC_VAL\
> +	((2*ACFG_SDRAM_RC_DELAY+ACFG_2XHCLK_LGTH-1)/ \
> +		ACFG_2XHCLK_LGTH)
> +#endif
> +
> +/* TBD Power down timer ; PRCT Bit Field Encoding; burst length 8 ; FP = 0*/
> +#define REG_ESDCTL_BASE_CONFIG (0x80020485\
> +				| (((ACFG_SDRAM_NUM_ROW-11)&0x7)<<24)\
> +				| (((ACFG_SDRAM_NUM_COL-8)&0x3)<<20)\
> +				| (((ACFG_SDRAM_REFRESH)&0x7)<<13))
> +
> +#define ACFG_NORMAL_RW_CMD	((0x0<<28)+REG_ESDCTL_BASE_CONFIG)
> +#define ACFG_PRECHARGE_CMD	((0x1<<28)+REG_ESDCTL_BASE_CONFIG)
> +#define ACFG_AUTOREFRESH_CMD	((0x2<<28)+REG_ESDCTL_BASE_CONFIG)
> +#define ACFG_SET_MODE_REG_CMD	((0x3<<28)+REG_ESDCTL_BASE_CONFIG)
> +
> +/* ESDRAMC Configuration Registers : force CL=3 to lpddr */
> +#define ACFG_SDRAM_ESDCFG_REGISTER_VAL (0x0\
> +	| (((((2*ACFG_SDRAM_EXIT_PWD+ACFG_2XHCLK_LGTH-1)/ \
> +		ACFG_2XHCLK_LGTH)-1)&0x3)<<21)\
> +	| (((ACFG_SDRAM_W2R_DELAY-1)&0x1)<<20)\
> +	| (((((2*ACFG_SDRAM_ROW_PRECHARGE_DELAY+ \
> +		ACFG_2XHCLK_LGTH-1)/ACFG_2XHCLK_LGTH)-1)&0x3)<<18) \
> +	| (((ACFG_SDRAM_TMRD_DELAY-1)&0x3)<<16)\
> +	| (((ACFG_SDRAM_TWR_DELAY)&0x1)<<15)\
> +	| (((((2*ACFG_SDRAM_RAS_DELAY+ACFG_2XHCLK_LGTH-1)/ \
> +		ACFG_2XHCLK_LGTH)-1)&0x7)<<12) \
> +	| (((((2*ACFG_SDRAM_RRD_DELAY+ACFG_2XHCLK_LGTH-1)/ \
> +		ACFG_2XHCLK_LGTH)-1)&0x3)<<10) \
> +	| (((REG_FIELD_SCLIMX_VAL)&0x3)<<8)\
> +	| (((((2*ACFG_SDRAM_RCD_DELAY+ACFG_2XHCLK_LGTH-1)/ \
> +		ACFG_2XHCLK_LGTH)-1)&0x7)<<4) \
> +	| (((REG_FIELD_SRC_VAL)&0x0F)<<0))
> +
> +/* Issue Mode register Command to SDRAM*/
> +#define ACFG_SDRAM_MODE_REGISTER_VAL\
> +	((((ACFG_SDRAM_BURST_LENGTH)&0x7)<<(0))\
> +	| (((REG_FIELD_SCL_VAL)&0x7)<<(4))\
> +	| ((0)<<(3)) /* sequentiql access */ \
> +	/*| (((ACFG_SDRAM_SINGLE_ACCESS)&0x1)<<(1))*/)
> +
> +/* Issue Extended Mode register Command to SDRAM*/
> +#define ACFG_SDRAM_EXT_MODE_REGISTER_VAL\
> +	((ACFG_SDRAM_PARTIAL_ARRAY_SR<<0)\
> +	| (ACFG_SDRAM_DRIVE_STRENGH<<(5))\
> +	| (1<<(ACFG_SDRAM_NUM_COL+ACFG_SDRAM_NUM_ROW+1+2)))
> +
> +/* Issue Precharge all Command to SDRAM*/
> +#define ACFG_SDRAM_PRECHARGE_ALL_VAL (1<<10)
> +
> +#endif /* __APF27_H */
> diff --git a/board/armadeus/apf27/splboot.S b/board/armadeus/apf27/splboot.S
> new file mode 100644
> index 0000000..898e59b
> --- /dev/null
> +++ b/board/armadeus/apf27/splboot.S
> @@ -0,0 +1,528 @@
> +/*
> + *  IMX27 NAND Flash SPL (Secondary Program Loader)
> + *
> + *  Copyright (c) 2008  Armadeus Project / eja
> + *
> + *  Based on Freescale NAND SPL
> + *
> + *  Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
> + *  Copyright (c) 2008-2012 Eric Jarrige <eric.jarrige@armadeus.org>
> + *
> + * See file CREDITS for list of people who contributed to this
> + * project.
> + *
> + * This program is free software; you can redistribute it and/or
> + * modify it under the terms of the GNU General Public License as
> + * published by the Free Software Foundation; either version 2 of
> + * the License, or (at your option) any later version.
> + *
> + * This program is distributed in the hope that it will be useful,
> + * but WITHOUT ANY WARRANTY; without even the implied warranty of
> + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
> + * GNU General Public License for more details.
> + *
> + * You should have received a copy of the GNU General Public License
> + * along with this program; if not, write to the Free Software
> + * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
> + * MA 02111-1307 USA
> + */
> +
> +#include <config.h>
> +#include <generated/asm-offsets.h>
> +#include <version.h>
> +#include <asm/macro.h>
> +#include <asm/arch/imx-regs.h>
> +/* #include <linux/linkage.h> */
> +#include "apf27.h"
> +
> +/*
> + * Standard NAND flash commands
> + */
> +#define NAND_CMD_READ0		0
> +
> +/* Extended commands for large page devices */
> +#define NAND_CMD_READSTART	0x30
> +#define NAND_CMD_CACHEDPROG	0x15
> +
> +/* Status bits */
> +#define NAND_STATUS_FAIL	0x01
> +#define NAND_STATUS_FAIL_N1	0x02
> +#define NAND_STATUS_TRUE_READY	0x20
> +#define NAND_STATUS_READY	0x40
> +#define NAND_STATUS_WP		0x80
> +
> +#define IMX_NFC_MAIN_AREA0      (0xD8000000)
> +#define IMX_NFC_MAIN_AREA1      (0xD8000200)
> +#define IMX_NFC_SPARE_AREA0     (0xD8000800)
> +#define IMX_NFC_REGS            (0xD8000E00)
> +
> +/*
> + * NFC registers address offset
> + */
> +#define NFC_OFFSET_BUF_ADDR            (0x04) /* Buffer Number for Page Data
> +                                                 Transfer To/From Flash Mem */
> +#define NFC_OFFSET_FLASH_ADDR          (0x06) /* NAND Flash Address */
> +#define NFC_OFFSET_FLASH_CMD           (0x08) /* NAND Flash Command */
> +#define NFC_OFFSET_CONFIG              (0x0A) /* NFC Internal Buffer Lock
> +                                                 Control */
> +#define NFC_OFFSET_ECC_STATUS_RESULT   (0x0C) /* Controller Status/Result of
> +                                                 Flash Operation */
> +#define NFC_OFFSET_CONFIG1             (0x1A) /* Nand Flash Operation
> +                                                 Configuration 1 */
> +#define NFC_OFFSET_CONFIG2             (0x1C) /* Nand Flash Operation
> +                                                 Configuration 2 */
> +
> +/* NFC_ECC_STATUS_RESULT Status Register Bit Fields */
> +#define NFC_ECC_STAT_ERM_SHFT   (2)      /* ERM shift */
> +#define NFC_ECC_STAT_ERROR2     (1<<1)   /* non correctable error */
> +
> +/* NFC_CONFIG Control Register Bit Fields */
> +#define NFC_CONFIG_UNLOCKED     (1<<1)   /* unlocked */
> +
> +/* NFC_CONFIG1 Control Register Bit Fields */
> +#define NFC_CONFIG1_ECC_EN	(1<<3)
> +#define NFC_CONFIG1_INT_MSK	(1<<4)
> +
> +/* NFC_CONFIG2 Control Register Bit Fields */
> +#define NFC_CONFIG2_INT         (1<<15)  /* Interrupt */
> +#define NFC_CONFIG2_FDO_PAGE    (1<<3)   /* Flash data output */
> +#define NFC_CONFIG2_FDI         (1<<2)   /* Flash data input */
> +#define NFC_CONFIG2_FADD        (1<<1)   /* Flash address input */
> +#define NFC_CONFIG2_FCMD        (1<<0)   /* Flash command input */

Using SPL, the storage driver (in your case, NAND) is not a special one,
but the usual driver from u-boot is taken. In this case, code in
mxc_nand, that supports mx27, should run. Instead of it, you embedded
your own (ok, from Freescale code) driver in assembly. Is there any
reason that forbid to take the general driver ?


> +
> +	.macro nand_boot
> +
> +#ifdef CONFIG_BOOT_TRACE_REG

According to README: each define whose name starts with CONFIG_ is an
option - it can use generally in U-Boot code and must be documented.
If your goal was to add something related to apf27 only, do not use a
CONFIG_ name or add documentation for it.

> +/*
> + * If CONFIG_BOOT_TRACE_REG is a SDRAM address then be sure to use the following
> + * 2 command after SDRAM init
> + */
> +
> +/* Backup state of previous boot to CONFIG_BOOT_TRACE_REG+4*/
> +#define BACKUP_TRACE()			\
> +	ldr r4, =CONFIG_BOOT_TRACE_REG;	\
> +	ldr r3, [r4];			\
> +	str r3, [r4, #0x04];
> +
> +/* Save a state of boot at CONFIG_BOOT_TRACE_REG */
> +#define BOOT_TRACE(val)		\
> +	ldr r4, =CONFIG_BOOT_TRACE_REG;	\
> +	ldr r3, =val;			\
> +	str r3, [r4];
> +#else
> +#define BACKUP_TRACE()
> +#define BOOT_TRACE(val)
> +#endif

Everything seems to me only for debug purpose. But does not work
CONFIG_SPL_CONSOLE and CONFIG_SPL_SERIAL_SUPPORT ?

> +
> +nand_boot_setup:
> +
> +	/* Copy SPL image from flash to SDRAM first */
> +	BOOT_TRACE(1)
> +	ldr r0, =IMX_NFC_MAIN_AREA0
> +	add r2, r0, #(IMX_NFC_SPARE_AREA0-IMX_NFC_MAIN_AREA0) //2KB NFC Buff
> +	ldr r1, =CONFIG_SYS_NAND_U_BOOT_DST
> +
> +	BOOT_TRACE(2)
> +1:	ldmia r0!, {r3-r10}
> +	stmia r1!, {r3-r10}
> +	cmp r0, r2
> +	blo 1b
> +
> +
> +
> +	/* Jump to SDRAM */
> +	BOOT_TRACE(3)
> +	ldr r1, =0x7FF
> +	and r0, pc, r1	 /* offset of pc */
> +	ldr r1, =CONFIG_SYS_NAND_U_BOOT_DST
> +	add r1, r1, #0x10
> +	add pc, r0, r1
> +	nop
> +	nop
> +	nop
> +	nop
> +
> +nand_copy_main:
> +	BOOT_TRACE(4)
> +	/* r0: nfc base. Reloaded after each page copying		*/
> +	ldr r0, =IMX_NFC_MAIN_AREA0
> +
> +	/* r1: starting flash addr to be copied. Updated constantly	*/
> +	/* bypass the first preloaded pages				*/
> +	ldr r1, =(IMX_NFC_SPARE_AREA0-IMX_NFC_MAIN_AREA0)
> +
> +	/* r2: end of 1st RAM buf. Doesn't change			*/
> +	ldr r2, =IMX_NFC_MAIN_AREA1
> +
> +	/* r12: NFC register base. Doesn't change			*/
> +	ldr r12, =IMX_NFC_REGS
> +
> +	ldr r11, =CONFIG_SYS_NAND_U_BOOT_DST
> +
> +	/* r13: end of SDRAM address for copying. Doesn't change	*/
> +	add r13, r11, #CONFIG_SYS_NAND_U_BOOT_SIZE
> +
> +	/* r11: starting SDRAM address for copying. Updated constantly	*/
> +	add r11, r11, r1
> +
> +	/* unlock internal buffer					*/
> +	ldr r3, =NFC_CONFIG_UNLOCKED
> +	strh r3, [r12, #NFC_OFFSET_CONFIG]
> +
> +	/* enable ECC and mask interrupts				*/
> +	ldr r3, =(NFC_CONFIG1_ECC_EN | NFC_CONFIG1_INT_MSK)
> +	strh r3, [r12, #NFC_OFFSET_CONFIG1]
> +
> +nfc_read_page:
> +	BOOT_TRACE(5)
> +	/*  send NAND_CMD_READ0 command				*/
> +	ldr r3, =NAND_CMD_READ0;
> +	strh r3, [r12, #NFC_OFFSET_FLASH_CMD]
> +
> +	ldr r3, =NFC_CONFIG2_FCMD
> +	strh r3, [r12, #NFC_OFFSET_CONFIG2]
> +	bl do_wait_op_done
> +
> +	/* send NAND address to read. TODO small page support		*/
> +	BOOT_TRACE(6)
> +	mov r3, r1, lsr #1
> +	bl do_addr_input	   /* 1st addr cycle */
> +
> +	mov r3, r1, lsr #9
> +	and r3, r3, #0x03
> +	bl do_addr_input	   /* 2nd addr cycle */
> +
> +	mov r3, r1, lsr #11
> +	bl do_addr_input	   /* 3rd addr cycle */
> +
> +	mov r3, r1, lsr #19
> +	bl do_addr_input	   /* 4th addr cycle */
> +
> +	/* Small NAND flashs (== 1Gb) support 5 addr cycles		*/
> +	mov r3, r1, lsr #27
> +	bl do_addr_input	   /* 5th addr cycle */
> +
> +	/* send NAND_CMD_READSTART command. TODO small page support	*/
> +	BOOT_TRACE(7)
> +	mov r3, #NAND_CMD_READSTART;
> +	strh r3, [r12, #NFC_OFFSET_FLASH_CMD]
> +	mov r3, #NFC_CONFIG2_FCMD
> +	strh r3, [r12, #NFC_OFFSET_CONFIG2]
> +	bl do_wait_op_done
> +
> +	/* read and copy buf 0						*/
> +	BOOT_TRACE(8)
> +	mov r3, #0
> +	strh r3, [r12, #NFC_OFFSET_BUF_ADDR]
> +
> +	mov r3, #NFC_CONFIG2_FDO_PAGE
> +	strh r3, [r12, #NFC_OFFSET_CONFIG2]
> +	bl do_wait_op_done
> +
> +	bl test_and_copy_buffer
> +
> +	/* read and copy buf 1						*/
> +	mov r3, #1
> +	strh r3, [r12, #NFC_OFFSET_BUF_ADDR]
> +
> +	mov r3, #NFC_CONFIG2_FDO_PAGE
> +	strh r3, [r12, #NFC_OFFSET_CONFIG2]
> +	bl do_wait_op_done
> +
> +	bl test_and_copy_buffer
> +
> +	/* here we should test if 512B page flash and bypass next buffers */
> +	/* read and copy buf 2. TODO small page support		*/
> +	mov r3, #2
> +	strh r3, [r12, #NFC_OFFSET_BUF_ADDR]
> +
> +	mov r3, #NFC_CONFIG2_FDO_PAGE
> +	strh r3, [r12, #NFC_OFFSET_CONFIG2]
> +	bl do_wait_op_done
> +
> +	bl test_and_copy_buffer
> +
> +	/* read and copy buf 3 */
> +	mov r3, #3
> +	strh r3, [r12, #NFC_OFFSET_BUF_ADDR]
> +
> +	mov r3, #NFC_CONFIG2_FDO_PAGE
> +	strh r3, [r12, #NFC_OFFSET_CONFIG2]
> +	bl do_wait_op_done
> +
> +	bl test_and_copy_buffer
> +
> +	/* is the last page ? */
> +	BOOT_TRACE(12)
> +	cmp r11, r13
> +	bge nand_copy_main_done
> +
> +	/* r0: nfc base. Reloaded after each page copying */
> +	ldr r0, =IMX_NFC_MAIN_AREA0
> +	/* r2: end of 1st RAM buf. Doesn't change */
> +	ldr r2, =IMX_NFC_MAIN_AREA1
> +	b nfc_read_page
> +
> +nand_copy_main_done:
> +	BOOT_TRACE(13)
> +	.endm /* nand_boot */
> +
> +	.macro init_aipi
> +	/*
> +	 * setup AIPI1 and AIPI2
> +	 */
> +	write32 AIPI1_PSR0, ACFG_AIPI1_PSR0_VAL
> +	write32 AIPI1_PSR1, ACFG_AIPI1_PSR1_VAL
> +	write32 AIPI2_PSR0, ACFG_AIPI2_PSR0_VAL
> +	write32 AIPI2_PSR1, ACFG_AIPI2_PSR1_VAL
> +
> +	/* Change SDRAM signal strengh */
> +	ldr r0, =GPCR
> +	ldr r1, =ACFG_GPCR_VAL
> +	ldr r5, [r0]
> +	orr r5, r5, r1
> +	str r5, [r0]
> +
> +	.endm /* init_aipi */
> +
> +	.macro init_clock
> +	ldr r0, =CSCR
> +	/* disable MPLL/SPLL first */
> +	ldr r1, [r0]
> +	bic r1, r1, #(CSCR_MPEN|CSCR_SPEN)
> +	str r1, [r0]
> +
> + 	/*
> +	 * pll clock initialization predefined in apf27.h
> +	 */
> +	write32 MPCTL0, ACFG_MPCTL0_VAL
> +	write32 SPCTL0, ACFG_SPCTL0_VAL
> +
> +	write32 CSCR, ACFG_CSCR_VAL|CSCR_MPLL_RESTART|CSCR_SPLL_RESTART
> +
> +	/*
> +	 * add some delay here
> +	 */
> +	mov r1, #0x1000
> +	1:  subs r1, r1, #0x1
> +	bne 1b
> +
> +	/* peripheral clock divider */
> +	write32 PCDR0, ACFG_PCDR0_VAL
> +	write32 PCDR1, ACFG_PCDR1_VAL
> +
> +	/* Configure PCCR0 and PCCR1 */
> +	write32 PCCR0, ACFG_PCCR0_VAL
> +	write32 PCCR1, ACFG_PCCR1_VAL
> +
> +	.endm /* init_clock */
> +

Well, this code makes what the driver for NAND is supposed to do.



> +.globl board_init_f
> +board_init_f:
> +
> +	/*
> +	 * invalidate I/D cache/TLB and drain write buffer
> +	 */
> +	mov r0, #0
> +	mcr p15, 0, r0, c7, c7, 0	/* invalidate I cache and D cache */
> +	mcr p15, 0, r0, c8, c7, 0	/* invalidate TLBs */
> +	mcr p15, 0, r0, c7, c10, 4	/* Drain the write buffer */
> +
> +	/*
> +	 * disable MMU stuff and caches
> +	 */
> +	mrc p15, 0, r0, c1, c0, 0
> +	bic	r0, r0, #0x00002300	/* clear bits 13, 9:8 (--V- --RS) */
> +	bic	r0, r0, #0x00000087	/* clear bits 7, 2:0 (B--- -CAM) */
> +	orr	r0, r0, #0x00000002	/* set bit 2 (A) Align */
> +	orr	r0, r0, #0x00001000	/* set bit 12 (I) I-Cache */
> +	mcr p15, 0, r0, c1, c0, 0
> +

Ok, this must be done in assembly - normally is part of lowelevel_init,
while board_init_f() is already written in C.

Really I was waiting that general code is called, that is
spl_nand_load_image() and then the driver function. You are pushing a
parallel way that is, at the end, still the old way to boot (nand_spl).

> +init_aipi_start:
> +	init_aipi
> +
> +	/* check if sdram has been setup (running within sdram) */
> +	cmp pc, #0xa0000000 /* start of first sdram memory space */
> +	blo init_clock_start
> +	cmp pc, #0xc0000000 /* end of second sdram memory space */
> +	blo regular_boot
> +
> +	/* running from sdram with full code present -> regular_boot */
> +init_clock_start:
> +	init_clock
> +
> +init_sdram_start:
> +	bl setup_sdram_ddr
> +
> +	/* save state of previous boot (SDRAM is configured)*/
> +	BACKUP_TRACE()
> +
> +	/* nand_boot BOOT_TRACE(1..13) */
> +
> +	nand_boot
> +
> +	BOOT_TRACE(14) /* start regular U-Boot */
> +
> +regular_boot: /* jump to start of next 2kiB block (U-Boot) */
> +	ldr r0, =0xfffff800
> +	and r0, r0, pc
> +	add pc, r0, #0x800
> +
> +do_wait_op_done:
> +	1:
> +	ldrh r3, [r12, #NFC_OFFSET_CONFIG2]
> +	ands r3, r3, #NFC_CONFIG2_INT
> +	beq 1b
> +	mov r3, #0x0
> +	strh r3, [r12, #NFC_OFFSET_CONFIG2]
> +	mov	pc, lr
> +
> +do_addr_input:
> +	mov r9, lr
> +	and r3, r3, #0xFF
> +	strh r3, [r12, #NFC_OFFSET_FLASH_ADDR]
> +	mov r3, #NFC_CONFIG2_FADD
> +	strh r3, [r12, #NFC_OFFSET_CONFIG2]
> +	bl do_wait_op_done
> +	mov pc, r9
> +
> +test_and_copy_buffer:
> +	/* check for bad block (2 bits error in main or spare are)*/
> +	BOOT_TRACE(9)
> +	ldrh r4, [r12, #NFC_OFFSET_ECC_STATUS_RESULT]
> +	ands r4, r4, #(NFC_ECC_STAT_ERROR2| \
> +		(NFC_ECC_STAT_ERROR2<<NFC_ECC_STAT_ERM_SHFT))
> +	bne skip_bad_buffer
> +
> +	/* check BI byte of the current spare buffer */
> +	ldr r4, =IMX_NFC_SPARE_AREA0
> +	ldrh r3, [r12, #NFC_OFFSET_BUF_ADDR] /* for the current buffer */
> +	orr  r4, r3, lsl #0x04
> +
> +	/* at bi word offset 4. */
> +	/* Fixme position change betwwen 8 and 16 bits bus */
> +	ldrh r4, [r4, #0x04]
> +	and r4, r4, #0x0FF00 /* has to be 0xFFxx */
> +	cmp r4, #0x0FF00
> +	bne skip_bad_buffer
> +
> +copy_good_buffer:
> +	/* copying 512 bytes buffer */
> +	BOOT_TRACE(10)
> +1:  ldmia r0!, {r3-r10}
> +	stmia r11!, {r3-r10}
> +	cmp r0, r2
> +	blo 1b
> +	b end_of_copy
> +
> +skip_bad_buffer:
> +	BOOT_TRACE(11)
> +	/* bad pages do not contain valid data and have to be skip	*/
> +	add r0, r0, #0x200
> +
> +	/* rewind ram addr to start of buffer */
> +	ldr r3, =(~0x1FF)
> +	and r11, r11, r3
> +
> +end_of_copy:
> +	add r2, r2, #0x200
> +	add r1, r1, #0x200
> +
> +	mov	pc, lr
> +


> +setup_sdram_ddr:
> +
> +	/* wait for SDRAM/LPDDR ready (SDRAMRDY) */
> +	ldr		r0, =IMX_ESD_BASE
> +	ldr		r4, =ESDMISC_SDRAM_RDY
> +2:	ldr		r1, [r0, #ESDMISC_ROF]
> +	ands		r1, r1, r4
> +	bpl		2b
> +
> +	/* LPDDR Soft Reset Mobile/Low Power DDR SDRAM. */
> +	ldr		r0, =IMX_ESD_BASE
> +	ldr		r4, =ACFG_ESDMISC_VAL
> +	orr		r1, r4, #ESDMISC_MDDR_DL_RST
> +	str		r1, [r0, #ESDMISC_ROF]
> +
> +	/* Hold for more than 200ns */
> +	ldr		r1, =0x10000
> +1:	subs		r1, r1, #0x1
> +	bne		1b
> +
> +	str		r4, [r0]
> +
> +	ldr		r0, =IMX_ESD_BASE
> +	ldr		r1, =ACFG_SDRAM_ESDCFG_REGISTER_VAL
> +	str		r1, [r0, #ESDCFG0_ROF]
> +
> +	ldr		r0, =IMX_ESD_BASE
> +	ldr		r1, =ACFG_PRECHARGE_CMD
> +	str		r1, [r0, #ESDCTL0_ROF]
> +
> +	/* write8(0xA0001000, any value) */
> +	ldr		r1, =PHYS_SDRAM_1+ACFG_SDRAM_PRECHARGE_ALL_VAL
> +	strb		r2, [r1]
> +
> +	ldr		r1, =ACFG_AUTOREFRESH_CMD
> +	str		r1, [r0, #ESDCTL0_ROF]
> +
> +	ldr 		r4, =PHYS_SDRAM_1	/* CSD0 base address	*/
> +
> +	ldr 		r6,=0x7		/* load loop counter	*/
> +1:	str 		r5,[r4]		/* run auto-refresh cycle to array 0 */
> +	subs 		r6,r6,#1
> +	bne 1b
> +
> +	ldr		r1, =ACFG_SET_MODE_REG_CMD
> +	str		r1, [r0, #ESDCTL0_ROF]
> +
> +	/* set standard mode register */
> +	ldr		r4, = PHYS_SDRAM_1+ACFG_SDRAM_MODE_REGISTER_VAL
> +	strb		r2, [r4]
> +
> +	/* set extended mode register */
> +	ldr		r4, =PHYS_SDRAM_1+ACFG_SDRAM_EXT_MODE_REGISTER_VAL
> +	strb		r5, [r4]
> +
> +	ldr		r1, =ACFG_NORMAL_RW_CMD
> +	str		r1, [r0, #ESDCTL0_ROF]
> +
> +	/* 2nd sdram */
> +	ldr		r0, =IMX_ESD_BASE
> +	ldr		r1, =ACFG_SDRAM_ESDCFG_REGISTER_VAL
> +	str		r1, [r0, #ESDCFG1_ROF]
> +
> +	ldr		r0, =IMX_ESD_BASE
> +	ldr		r1, =ACFG_PRECHARGE_CMD
> +	str		r1, [r0, #ESDCTL1_ROF]
> +
> +	/* write8(0xB0001000, any value) */
> +	ldr		r1, =PHYS_SDRAM_2+ACFG_SDRAM_PRECHARGE_ALL_VAL
> +	strb		r2, [r1]
> +
> +	ldr		r1, =ACFG_AUTOREFRESH_CMD
> +	str		r1, [r0, #ESDCTL1_ROF]
> +
> +	ldr 		r4, =PHYS_SDRAM_2	/* CSD1 base address */
> +
> +	ldr 		r6,=0x7		/* load loop counter */
> +1:	str 		r5,[r4]		/* run auto-refresh cycle to array 0 */
> +	subs 		r6,r6,#1
> +	bne 1b
> +
> +	ldr		r1, =ACFG_SET_MODE_REG_CMD
> +	str		r1, [r0, #ESDCTL1_ROF]
> +
> +	/* set standard mode register */
> +	ldr		r4, =PHYS_SDRAM_2+ACFG_SDRAM_MODE_REGISTER_VAL
> +	strb		r2, [r4]
> +
> +	/* set extended mode register */
> +	ldr		r4, =PHYS_SDRAM_2+ACFG_SDRAM_EXT_MODE_REGISTER_VAL
> +	strb		r2, [r4]
> +
> +	ldr		r1, =ACFG_NORMAL_RW_CMD
> +	str		r1, [r0, #ESDCTL1_ROF]
> +
> +	mov	pc, lr

> diff --git a/boards.cfg b/boards.cfg
> index 6a368de..14ce685 100644
> --- a/boards.cfg
> +++ b/boards.cfg
> @@ -195,6 +195,7 @@ jadecpu                      arm         arm926ejs   jadecpu             syteco
>  mx25pdk                      arm         arm926ejs   mx25pdk             freescale      mx25		mx25pdk:IMX_CONFIG=board/freescale/mx25pdk/imximage.cfg
>  tx25                         arm         arm926ejs   tx25                karo           mx25
>  zmx25                        arm         arm926ejs   zmx25               syteco         mx25
> +apf27                        arm         arm926ejs   apf27               armadeus       mx27
>  imx27lite                    arm         arm926ejs   imx27lite           logicpd        mx27
>  magnesium                    arm         arm926ejs   imx27lite           logicpd        mx27
>  mx23_olinuxino               arm         arm926ejs   mx23_olinuxino      olimex         mxs		mx23_olinuxino
> diff --git a/include/configs/apf27.h b/include/configs/apf27.h
> new file mode 100644
> index 0000000..a49be56
> --- /dev/null
> +++ b/include/configs/apf27.h
> @@ -0,0 +1,446 @@
> +/*
> + *
> + * Configuration settings for the Armadeus Project motherboard APF27
> + *
> + * Copyright (C) 2008-2012 ej / Armadeus Project <eric.jarrige@armadeus.org>
> + *
> + * This program is free software; you can redistribute it and/or
> + * modify it under the terms of the GNU General Public License as
> + * published by the Free Software Foundation; either version 2 of
> + * the License, or (at your option) any later version.
> + *
> + * This program is distributed in the hope that it will be useful,
> + * but WITHOUT ANY WARRANTY; without even the implied warranty of
> + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
> + * GNU General Public License for more details.
> + *
> + * You should have received a copy of the GNU General Public License
> + * along with this program; if not, write to the Free Software
> + * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
> + * MA 02111-1307 USA
> + */
> +
> +#ifndef __CONFIG_H
> +#define __CONFIG_H
> +
> +#define CONFIG_VERSION_VARIABLE
> +#define CONFIG_ENV_VERSION	"3.3"
> +#define CONFIG_IDENT_STRING	" apf27 patch 3.9"
> +#define CONFIG_BOARD_NAME	apf27
> +
> +/*
> + * SoC configurations
> + */
> +#define CONFIG_ARM926EJS		/* this is an ARM926EJS CPU */
> +#define CONFIG_MX27			/* in a Freescale i.MX27 Chip */
> +#define CONFIG_MACH_TYPE	1698	/* APF27 */
> +
> +/*
> + * Enable the call to miscellaneous platform dependent initialization.
> + */
> +#define CONFIG_SYS_NO_FLASH	/* to be define before <config_cmd_default.h> */
> +#define CONFIG_MISC_INIT_R
> +#define CONFIG_BOARD_EARLY_INIT_F
> +#ifdef CONFIG_SPL_BUILD
> +#define CONFIG_SKIP_LOWLEVEL_INIT
> +#endif
> +
> +/*
> + * Board display option
> + */
> +#define CONFIG_DISPLAY_BOARDINFO
> +#define CONFIG_DISPLAY_CPUINFO
> +
> +/*
> + * SPL
> + */
> +/* Copy SPL+U-Boot here	     */
> +#define CONFIG_SYS_NAND_U_BOOT_DST	(CONFIG_SYS_TEXT_BASE - 0x800)
> +/* Size is the partion size  */
> +#define CONFIG_SYS_NAND_U_BOOT_SIZE	CONFIG_SYS_MONITOR_LEN
> +/* Build image with spl and u-boot */
> +#define CONFIG_NAND_U_BOOT
> +#define CONFIG_SPL_PAD_TO		0xa0000800
> +
> +/*
> + * SPL
> + */
> +#define	CONFIG_SPL
> +#define CONFIG_SPL_TEXT_BASE            0xa0000000
> +#define CONFIG_SPL_STACK                0xffffff00
> +#define CONFIG_SYS_NAND_U_BOOT_START    0xa0000800
> +#define CONFIG_SYS_NAND_U_BOOT_OFFS	0x800
> +
> +/*
> + * BOOTP options
> + */
> +#define CONFIG_BOOTP_SUBNETMASK
> +#define CONFIG_BOOTP_GATEWAY
> +#define CONFIG_BOOTP_HOSTNAME
> +#define CONFIG_BOOTP_BOOTPATH
> +#define CONFIG_BOOTP_BOOTFILESIZE
> +#define CONFIG_BOOTP_DNS
> +#define CONFIG_BOOTP_DNS2
> +
> +#define CONFIG_HOSTNAME	CONFIG_BOARD_NAME
> +#define CONFIG_ROOTPATH	"/tftpboot/" __stringify(CONFIG_BOARD_NAME) "-root"
> +
> +/*
> + * U-Boot Commands
> + */
> +#include <config_cmd_default.h>
> +
> +#define CONFIG_CMD_ASKENV	/* ask for env variable		*/
> +#define CONFIG_CMD_BSP		/* Board Specific functions	*/
> +#define CONFIG_CMD_CACHE	/* icache, dcache		*/
> +#define CONFIG_CMD_DATE
> +#define CONFIG_CMD_DHCP		/* DHCP Support			*/
> +#define CONFIG_CMD_DNS
> +#define CONFIG_CMD_EEPROM
> +#define CONFIG_CMD_EXT2
> +#define CONFIG_CMD_FAT		/* FAT support			*/
> +#define CONFIG_CMD_IMX_FUSE	/* imx iim fuse                 */
> +#define CONFIG_CMD_I2C
> +#define CONFIG_CMD_MII		/* MII support			*/
> +#define CONFIG_CMD_MMC
> +#define CONFIG_CMD_MTDPARTS	/* MTD partition support	*/
> +#define CONFIG_CMD_NAND		/* NAND support			*/
> +#define CONFIG_CMD_NAND_LOCK_UNLOCK
> +#define CONFIG_CMD_NAND_TRIMFFS
> +#define CONFIG_CMD_NFS		/* NFS support			*/
> +#define CONFIG_CMD_PING		/* ping support			*/
> +#define CONFIG_CMD_SETEXPR	/* setexpr support		*/
> +#define CONFIG_CMD_UBI
> +#define CONFIG_CMD_UBIFS
> +
> +/*
> + * Memory configurations
> + */
> +#define CONFIG_NR_DRAM_POPULATED 1
> +#define CONFIG_NR_DRAM_BANKS	2
> +
> +#define ACFG_SDRAM_MBYTE_SYZE 64
> +
> +#define PHYS_SDRAM_1			0xA0000000
> +#define PHYS_SDRAM_2			0xB0000000
> +#define CONFIG_SYS_SDRAM_BASE		PHYS_SDRAM_1
> +#define CONFIG_SYS_MALLOC_LEN		(CONFIG_ENV_SIZE + (512<<10))
> +#define CONFIG_SYS_MEMTEST_START	0xA0000000	/* memtest test area  */
> +#define CONFIG_SYS_MEMTEST_END		0xA0300000	/* 3 MiB RAM test */
> +
> +#define CONFIG_SYS_INIT_SP_ADDR	(CONFIG_SYS_SDRAM_BASE	\
> +		+ PHYS_SDRAM_1_SIZE - 0x0100000)
> +
> +#define CONFIG_SYS_TEXT_BASE	0xA0000800
> +
> +/*
> + * FLASH organization
> + */
> +#define	ACFG_MONITOR_OFFSET		0x00000000
> +#define	CONFIG_SYS_MONITOR_LEN		0x00100000	/* 1MiB */
> +#define CONFIG_ENV_IS_IN_NAND
> +#define	CONFIG_ENV_OVERWRITE
> +#define	CONFIG_ENV_OFFSET		0x00100000	/* NAND offset */
> +#define	CONFIG_ENV_SIZE			0x00020000	/* 128kB  */
> +#define CONFIG_ENV_RANGE		0X00080000	/* 512kB */
> +#define	CONFIG_ENV_OFFSET_REDUND	\
> +		(CONFIG_ENV_OFFSET + CONFIG_ENV_RANGE)	/* +512kB */
> +#define	CONFIG_ENV_SIZE_REDUND		CONFIG_ENV_SIZE	/* 512kB */
> +#define	CONFIG_FIRMWARE_OFFSET		0x00200000
> +#define	CONFIG_KERNEL_OFFSET		0x00300000
> +#define	CONFIG_ROOTFS_OFFSET		0x00800000
> +
> +#define CONFIG_MTDMAP			"mxc_nand.0"
> +#define MTDIDS_DEFAULT			"nand0=" CONFIG_MTDMAP
> +#define MTDPARTS_DEFAULT	"mtdparts=" CONFIG_MTDMAP \
> +				":1M(u-boot)ro," \
> +				"512K(env)," \
> +				"512K(env2)," \
> +				"512K(firmware)," \
> +				"512K(dtb)," \
> +				"5M(kernel)," \
> +				"-(rootfs)"
> +
> +/*
> + * U-Boot general configurations
> + */
> +#define CONFIG_SYS_LONGHELP
> +#define CONFIG_SYS_PROMPT		"BIOS> "	/* prompt string */
> +#define CONFIG_SYS_CBSIZE		2048		/* console I/O buffer */
> +#define CONFIG_SYS_PBSIZE		\
> +				(CONFIG_SYS_CBSIZE+sizeof(CONFIG_SYS_PROMPT)+16)
> +						/* Print buffer size */
> +#define CONFIG_SYS_MAXARGS		16		/* max command args */
> +#define CONFIG_SYS_BARGSIZE		CONFIG_SYS_CBSIZE
> +						/* Boot argument buffer size */
> +#define CONFIG_AUTO_COMPLETE
> +#define CONFIG_CMDLINE_EDITING
> +#define CONFIG_SYS_HUSH_PARSER			/* enable the "hush" shell */
> +#define CONFIG_SYS_PROMPT_HUSH_PS2	"> "	/* secondary prompt string */
> +
> +/*
> + * Boot Linux
> + */
> +#define CONFIG_CMDLINE_TAG		/* send commandline to Kernel	*/
> +#define CONFIG_SETUP_MEMORY_TAGS	/* send memory definition to kernel */
> +#define CONFIG_INITRD_TAG		/* send initrd params	*/
> +
> +#define CONFIG_OF_LIBFDT
> +
> +#define CONFIG_BOOTDELAY	5
> +#define CONFIG_ZERO_BOOTDELAY_CHECK
> +#define	CONFIG_BOOTFILE		__stringify(CONFIG_BOARD_NAME) "-linux.bin"
> +#define CONFIG_BOOTARGS		"console=" __stringify(ACFG_CONSOLE_DEV) "," \
> +			__stringify(CONFIG_BAUDRATE) " " MTDPARTS_DEFAULT \
> +			" ubi.mtd=rootfs root=ubi0:rootfs rootfstype=ubifs "
> +
> +#define ACFG_CONSOLE_DEV	ttySMX0
> +#define CONFIG_BOOTCOMMAND	"run ubifsboot"
> +#define CONFIG_SYS_AUTOLOAD	"no"
> +/*
> + * Default load address for user programs and kernel
> + */
> +#define CONFIG_LOADADDR			0xA0000000
> +#define	CONFIG_SYS_LOAD_ADDR		CONFIG_LOADADDR
> +
> +/*
> + * Extra Environments
> + */
> +#define CONFIG_EXTRA_ENV_SETTINGS \
> +	"env_version="		CONFIG_ENV_VERSION			"\0" \
> +	"consoledev="		__stringify(ACFG_CONSOLE_DEV)		"\0" \
> +	"mtdparts="		MTDPARTS_DEFAULT			"\0" \
> +	"partition=nand0,6\0"						\
> +	"u-boot_addr="		__stringify(ACFG_MONITOR_OFFSET)	"\0" \
> +	"env_addr="		__stringify(CONFIG_ENV_OFFSET)		"\0" \
> +	"firmware_addr="	__stringify(CONFIG_FIRMWARE_OFFSET)	"\0" \
> +	"kernel_addr="		__stringify(CONFIG_KERNEL_OFFSET)	"\0" \
> +	"rootfs_addr="		__stringify(CONFIG_ROOTFS_OFFSET)	"\0" \
> +	"board_name="		__stringify(CONFIG_BOARD_NAME)		"\0" \
> +	"kernel_addr_r=A0000000\0" \
> +	"addnfsargs=setenv bootargs ${bootargs} "			\
> +		"root=/dev/nfs rw nfsroot=${serverip}:${rootpath}\0"    \
> +	"addubifsargs=setenv bootargs ${bootargs} "			\
> +		"ubi.mtd=rootfs root=ubi0:rootfs rootfstype=ubifs\0"    \
> +	"addmmcargs=setenv bootargs ${bootargs} "			\
> +		"root=/dev/mmcblk0p1 rootfstype=ext2\0"			\
> +	"addipargs=setenv bootargs ${bootargs} "			\
> +		"ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}:"	\
> +		"${hostname}:eth0:off \0"				\
> +	"nfsboot=setenv bootargs console=${consoledev},${baudrate} "	\
> +		"${mtdparts} ${extrabootargs}; run addnfsargs addipargs;"\
> +		"nfs ${kernel_addr_r} "					\
> +		"${serverip}:${rootpath}/boot/${board_name}-linux.bin;"	\
> +		"if test -n ${fdt_addr_r}  ; then "			\
> +			"nand read ${fdt_addr_r} dtb; fi;"		\
> +		"bootm ${kernel_addr_r} - ${fdt_addr_r}\0"		\
> +	"ubifsboot=setenv bootargs console=${consoledev},${baudrate} "	\
> +		"${mtdparts} ${extrabootargs};run addubifsargs addipargs;"\
> +		"if test -n ${fdt_addr_r}  ; then "			\
> +			"nand read ${fdt_addr_r} dtb; fi;"		\
> +		"nboot ${kernel_addr_r} kernel;"			\
> +		"bootm ${kernel_addr_r} - ${fdt_addr_r}\0"		\
> +	"mmcboot=setenv bootargs console=${consoledev},${baudrate} "	\
> +		"${mtdparts} ${extrabootargs}; run addmmcargs addipargs;"\
> +		"if test -n ${fdt_addr_r}  ; then "			\
> +			"nand read ${fdt_addr_r} dtb; fi;"		\
> +		"mmc dev 0; ext2load mmc 0 ${kernel_addr_r}"		\
> +			" /boot/${board_name}-linux.bin;"		\
> +		"bootm ${kernel_addr_r} - ${fdt_addr_r}\0"		\
> +	"boot_nfs_fallback_flash=if ping ${serverip};"			\
> +			"then echo Boot over NFS; run nfsboot;"		\
> +			"else echo Boot from the board; run ubifsboot;"	\
> +		"fi\0"							\
> +	"firmware_autoload=0\0"						\
> +	"flash_uboot=nand unlock ${u-boot_addr} ;"			\
> +		"nand erase.part u-boot;"		\
> +		"if nand write.trimffs ${fileaddr} ${u-boot_addr} ${filesize};"\
> +			"then nand lock; nand unlock ${env_addr};"	\
> +				"echo Flashing of uboot succeed;"	\
> +			"else echo Flashing of uboot failed;"		\
> +		"fi; \0"						\
> +	"flash_firmware=nand erase.part firmware;"			\
> +	"if nand write.trimffs ${fileaddr} ${firmware_addr} ${filesize};"\
> +			"then echo Flashing of Firmware succeed;"	\
> +			"else echo Flashing of Firmware failed;"	\
> +		"fi\0"							\
> +	"flash_kernel=nand erase.part kernel;"				\
> +		"if nand write.trimffs ${fileaddr} ${kernel_addr} ${filesize};"\
> +			"then echo Flashing of kernel succeed;"		\
> +			"else echo Flashing of kernel failed;"		\
> +		"fi\0"							\
> +	"flash_rootfs=nand erase.part rootfs;"	\
> +		"if nand write.trimffs ${fileaddr} ${rootfs_addr} ${filesize};"\
> +			"then echo Flashing of rootfs succeed;"		\
> +			"else echo Flashing of rootfs failed;"		\
> +		"fi\0"							\
> +	"flash_dtb=nand erase.part dtb;"				\
> +		"if nand write.trimffs ${fileaddr} dtb ${filesize};"	\
> +			"then echo Flashing of rootfs succeed;"		\
> +			"else echo Flashing of rootfs failed;"		\
> +		"fi\0"							\
> +	"flash_reset_env=env default -f -a; saveenv;"			\
> +		"echo Flash environment variables erased!\0"		\
> +	"download_uboot=tftpboot ${loadaddr} ${board_name}-u-boot-nand.bin\0" \
> +	"download_kernel=tftpboot ${loadaddr} ${board_name}-linux.bin\0" \
> +	"download_rootfs=tftpboot ${loadaddr} ${board_name}-rootfs.ubi\0" \
> +	"download_dtb=tftpboot ${loadaddr} imx27-${board_name}.dtb\0" \
> +	"update_uboot=run download_uboot flash_uboot\0"			\
> +	"update_kernel=run download_kernel flash_kernel\0"		\
> +	"update_rootfs=run download_rootfs flash_rootfs\0"		\
> +	"update_dtb=run download_dtb flash_dtb\0"		\
> +	"update_all=run download_kernel flash_kernel download_rootfs "	\
> +		"flash_rootfs download_uboot flash_uboot\0"		\
> +	"unlock_regs=mw 10000008 0; mw 10020008 0\0"			\
> +
> +/*
> + * Serial Driver
> + */
> +#define CONFIG_MXC_UART
> +#define CONFIG_CONS_INDEX		1
> +#define CONFIG_BAUDRATE			115200
> +#define CONFIG_MXC_UART_BASE		UART1_BASE
> +
> +/*
> + * GPIO
> + */
> +#define CONFIG_MXC_GPIO
> +
> +/*
> + * NOR
> + */
> +
> +/*
> + * NAND
> + */
> +#define CONFIG_NAND_MXC
> +
> +#define CONFIG_MXC_NAND_REGS_BASE	0xD8000000
> +#define CONFIG_SYS_NAND_BASE		CONFIG_MXC_NAND_REGS_BASE
> +#define CONFIG_SYS_MAX_NAND_DEVICE	1
> +
> +#define CONFIG_MXC_NAND_HWECC
> +#define CONFIG_SYS_NAND_LARGEPAGE
> +#define CONFIG_SYS_NAND_BUSWIDTH_16BIT
> +#define NAND_MAX_CHIPS			1
> +
> +
> +#define CONFIG_FLASH_SHOW_PROGRESS	45
> +#define CONFIG_SYS_NAND_QUIET		1
> +
> +#define CONFIG_BOOT_TRACE_REG	0xAFFFFFF8 /* Addr to store traces of SPL boot*/
> +
> +/*
> + * Partitions & Filsystems
> + */
> +#define CONFIG_MTD_DEVICE
> +#define CONFIG_MTD_PARTITIONS
> +#define CONFIG_DOS_PARTITION
> +#define CONFIG_SUPPORT_VFAT
> +
> +/*
> + * UBIFS
> + */
> +#define CONFIG_RBTREE
> +#define CONFIG_LZO
> +
> +/*
> + * Ethernet (on SOC imx FEC)
> + */
> +#define CONFIG_FEC_MXC
> +#define CONFIG_FEC_MXC_PHYADDR		0x1f
> +#define CONFIG_MII				/* MII PHY management	*/
> +
> +/*
> + * FPGA
> + */
> +#define CONFIG_FPGA			CONFIG_SYS_SPARTAN3
> +#define CONFIG_FPGA_COUNT		1
> +#define CONFIG_FPGA_XILINX
> +#define CONFIG_FPGA_SPARTAN3
> +#define CONFIG_SYS_FPGA_WAIT		20000 /* 20 ms */
> +#define CONFIG_SYS_FPGA_PROG_FEEDBACK
> +#define CONFIG_SYS_FPGA_CHECK_CTRLC
> +#define CONFIG_SYS_FPGA_CHECK_ERROR
> +
> +/*
> + * Fuses - IIM
> + */
> +#ifdef CONFIG_CMD_IMX_FUSE
> +#define IIM_MAC_BANK		0
> +#define IIM_MAC_ROW		5
> +#define IIM0_SCC_KEY		11
> +#define IIM1_SUID		1
> +#endif
> +
> +/*
> + * I2C
> + */
> +
> +#ifdef CONFIG_CMD_I2C
> +#define CONFIG_HARD_I2C
> +#define CONFIG_I2C_MXC
> +#define CONFIG_I2C_MULTI_BUS
> +#define CONFIG_SYS_I2C_BASE		IMX_I2C1_BASE
> +#define CONFIG_SYS_I2C_SPEED		100000	/* 100 kHz */
> +#define CONFIG_SYS_I2C_SLAVE		0x7F
> +#define CONFIG_SYS_I2C_NOPROBES		{ }
> +
> +#ifdef CONFIG_CMD_EEPROM
> +# define CONFIG_SYS_I2C_EEPROM_ADDR	0x50	/* EEPROM 24LC02 */
> +# define CONFIG_SYS_I2C_EEPROM_ADDR_LEN 1	/* bytes of address */
> +#define CONFIG_SYS_EEPROM_PAGE_WRITE_BITS	3
> +#define CONFIG_SYS_EEPROM_PAGE_WRITE_DELAY_MS	10	/* msec */
> +#endif /* CONFIG_CMD_EEPROM */
> +#endif /* CONFIG_CMD_I2C */
> +
> +/*
> + * SD/MMC
> + */
> +#ifdef CONFIG_CMD_MMC
> +#define CONFIG_MMC
> +#define CONFIG_GENERIC_MMC
> +#define CONFIG_MXC_MMC
> +#define CONFIG_MXC_MCI_REGS_BASE	0x10014000
> +#endif
> +
> +/*
> + * RTC
> + */
> +#ifdef CONFIG_CMD_DATE
> +#define CONFIG_RTC_DS1374
> +#define CONFIG_SYS_RTC_BUS_NUM		0
> +#endif /* CONFIG_CMD_DATE */
> +
> +/*
> + * Clocks
> + */
> +#define	CONFIG_SYS_HZ			1000	/* Ticks per second */
> +
> +/*
> + * PLL
> + *
> + *  31 | x  |x| x x x x |x x x x x x x x x x |x x|x x x x|x x x x x x x x x x| 0
> + *     |CPLM|X|----PD---|--------MFD---------|XXX|--MFI--|-----MFN-----------|
> + */
> +#define CONFIG_MX27_CLK32		32768	/* 32768 or 32000 Hz crystal */
> +
> +#if (ACFG_SDRAM_MBYTE_SYZE == 64) /* micron MT46H16M32LF -6 */
> +/* micron 64MB */
> +#define PHYS_SDRAM_1_SIZE			0x04000000 /* 64 MB */
> +#define PHYS_SDRAM_2_SIZE			0x04000000 /* 64 MB */
> +#endif
> +
> +#if (ACFG_SDRAM_MBYTE_SYZE == 128)
> +/* micron 128MB */
> +#define PHYS_SDRAM_1_SIZE			0x08000000 /* 128 MB */
> +#define PHYS_SDRAM_2_SIZE			0x08000000 /* 128 MB */
> +#endif
> +
> +#if (ACFG_SDRAM_MBYTE_SYZE == 256)
> +/* micron 256MB */
> +#define PHYS_SDRAM_1_SIZE			0x10000000 /* 256 MB */
> +#define PHYS_SDRAM_2_SIZE			0x10000000 /* 256 MB */
> +#endif
> +
> +#endif /* __CONFIG_H */
> 

Best regards,
Stefano Babic

-- 
=====================================================================
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: +49-8142-66989-53 Fax: +49-8142-66989-80 Email: sbabic at denx.de
=====================================================================

^ permalink raw reply	[flat|nested] 13+ messages in thread

* [U-Boot] [PATCH v4 2/4] apf27: add support for the armadeus APF27 board
  2013-07-29  9:43   ` Stefano Babic
@ 2013-08-01 17:12     ` trem
  2013-08-02 11:12       ` Stefano Babic
  0 siblings, 1 reply; 13+ messages in thread
From: trem @ 2013-08-01 17:12 UTC (permalink / raw)
  To: u-boot

Hi Stefano,


On 29/07/13 11:43, Stefano Babic wrote:

>> diff --git a/board/armadeus/apf27/splboot.S b/board/armadeus/apf27/splboot.S
>> new file mode 100644
>> index 0000000..898e59b
>> --- /dev/null
>> +++ b/board/armadeus/apf27/splboot.S
>> @@ -0,0 +1,528 @@
>> +/*
>> + *  IMX27 NAND Flash SPL (Secondary Program Loader)
>> + *
>> + *  Copyright (c) 2008  Armadeus Project / eja
>> + *
>> + *  Based on Freescale NAND SPL
>> + *
>> + *  Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
>> + *  Copyright (c) 2008-2012 Eric Jarrige<eric.jarrige@armadeus.org>
>> + *
>> + * See file CREDITS for list of people who contributed to this
>> + * project.
>> + *
>> + * This program is free software; you can redistribute it and/or
>> + * modify it under the terms of the GNU General Public License as
>> + * published by the Free Software Foundation; either version 2 of
>> + * the License, or (at your option) any later version.
>> + *
>> + * This program is distributed in the hope that it will be useful,
>> + * but WITHOUT ANY WARRANTY; without even the implied warranty of
>> + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
>> + * GNU General Public License for more details.
>> + *
>> + * You should have received a copy of the GNU General Public License
>> + * along with this program; if not, write to the Free Software
>> + * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
>> + * MA 02111-1307 USA
>> + */
>> +
>> +#include<config.h>
>> +#include<generated/asm-offsets.h>
>> +#include<version.h>
>> +#include<asm/macro.h>
>> +#include<asm/arch/imx-regs.h>
>> +/* #include<linux/linkage.h>  */
>> +#include "apf27.h"
>> +
>> +/*
>> + * Standard NAND flash commands
>> + */
>> +#define NAND_CMD_READ0		0
>> +
>> +/* Extended commands for large page devices */
>> +#define NAND_CMD_READSTART	0x30
>> +#define NAND_CMD_CACHEDPROG	0x15
>> +
>> +/* Status bits */
>> +#define NAND_STATUS_FAIL	0x01
>> +#define NAND_STATUS_FAIL_N1	0x02
>> +#define NAND_STATUS_TRUE_READY	0x20
>> +#define NAND_STATUS_READY	0x40
>> +#define NAND_STATUS_WP		0x80
>> +
>> +#define IMX_NFC_MAIN_AREA0      (0xD8000000)
>> +#define IMX_NFC_MAIN_AREA1      (0xD8000200)
>> +#define IMX_NFC_SPARE_AREA0     (0xD8000800)
>> +#define IMX_NFC_REGS            (0xD8000E00)
>> +
>> +/*
>> + * NFC registers address offset
>> + */
>> +#define NFC_OFFSET_BUF_ADDR            (0x04) /* Buffer Number for Page Data
>> +                                                 Transfer To/From Flash Mem */
>> +#define NFC_OFFSET_FLASH_ADDR          (0x06) /* NAND Flash Address */
>> +#define NFC_OFFSET_FLASH_CMD           (0x08) /* NAND Flash Command */
>> +#define NFC_OFFSET_CONFIG              (0x0A) /* NFC Internal Buffer Lock
>> +                                                 Control */
>> +#define NFC_OFFSET_ECC_STATUS_RESULT   (0x0C) /* Controller Status/Result of
>> +                                                 Flash Operation */
>> +#define NFC_OFFSET_CONFIG1             (0x1A) /* Nand Flash Operation
>> +                                                 Configuration 1 */
>> +#define NFC_OFFSET_CONFIG2             (0x1C) /* Nand Flash Operation
>> +                                                 Configuration 2 */
>> +
>> +/* NFC_ECC_STATUS_RESULT Status Register Bit Fields */
>> +#define NFC_ECC_STAT_ERM_SHFT   (2)      /* ERM shift */
>> +#define NFC_ECC_STAT_ERROR2     (1<<1)   /* non correctable error */
>> +
>> +/* NFC_CONFIG Control Register Bit Fields */
>> +#define NFC_CONFIG_UNLOCKED     (1<<1)   /* unlocked */
>> +
>> +/* NFC_CONFIG1 Control Register Bit Fields */
>> +#define NFC_CONFIG1_ECC_EN	(1<<3)
>> +#define NFC_CONFIG1_INT_MSK	(1<<4)
>> +
>> +/* NFC_CONFIG2 Control Register Bit Fields */
>> +#define NFC_CONFIG2_INT         (1<<15)  /* Interrupt */
>> +#define NFC_CONFIG2_FDO_PAGE    (1<<3)   /* Flash data output */
>> +#define NFC_CONFIG2_FDI         (1<<2)   /* Flash data input */
>> +#define NFC_CONFIG2_FADD        (1<<1)   /* Flash address input */
>> +#define NFC_CONFIG2_FCMD        (1<<0)   /* Flash command input */
>
> Using SPL, the storage driver (in your case, NAND) is not a special one,
> but the usual driver from u-boot is taken. In this case, code in
> mxc_nand, that supports mx27, should run. Instead of it, you embedded
> your own (ok, from Freescale code) driver in assembly. Is there any
> reason that forbid to take the general driver ?
>
>
>> +
>> +	.macro nand_boot
>> +
>> +#ifdef CONFIG_BOOT_TRACE_REG
>
> According to README: each define whose name starts with CONFIG_ is an
> option - it can use generally in U-Boot code and must be documented.
> If your goal was to add something related to apf27 only, do not use a
> CONFIG_ name or add documentation for it.
>
>> +/*
>> + * If CONFIG_BOOT_TRACE_REG is a SDRAM address then be sure to use the following
>> + * 2 command after SDRAM init
>> + */
>> +
>> +/* Backup state of previous boot to CONFIG_BOOT_TRACE_REG+4*/
>> +#define BACKUP_TRACE()			\
>> +	ldr r4, =CONFIG_BOOT_TRACE_REG;	\
>> +	ldr r3, [r4];			\
>> +	str r3, [r4, #0x04];
>> +
>> +/* Save a state of boot at CONFIG_BOOT_TRACE_REG */
>> +#define BOOT_TRACE(val)		\
>> +	ldr r4, =CONFIG_BOOT_TRACE_REG;	\
>> +	ldr r3, =val;			\
>> +	str r3, [r4];
>> +#else
>> +#define BACKUP_TRACE()
>> +#define BOOT_TRACE(val)
>> +#endif
>
> Everything seems to me only for debug purpose. But does not work
> CONFIG_SPL_CONSOLE and CONFIG_SPL_SERIAL_SUPPORT ?
>
>> +
>> +nand_boot_setup:
>> +
>> +	/* Copy SPL image from flash to SDRAM first */
>> +	BOOT_TRACE(1)
>> +	ldr r0, =IMX_NFC_MAIN_AREA0
>> +	add r2, r0, #(IMX_NFC_SPARE_AREA0-IMX_NFC_MAIN_AREA0) //2KB NFC Buff
>> +	ldr r1, =CONFIG_SYS_NAND_U_BOOT_DST
>> +
>> +	BOOT_TRACE(2)
>> +1:	ldmia r0!, {r3-r10}
>> +	stmia r1!, {r3-r10}
>> +	cmp r0, r2
>> +	blo 1b
>> +
>> +
>> +
>> +	/* Jump to SDRAM */
>> +	BOOT_TRACE(3)
>> +	ldr r1, =0x7FF
>> +	and r0, pc, r1	 /* offset of pc */
>> +	ldr r1, =CONFIG_SYS_NAND_U_BOOT_DST
>> +	add r1, r1, #0x10
>> +	add pc, r0, r1
>> +	nop
>> +	nop
>> +	nop
>> +	nop
>> +
>> +nand_copy_main:
>> +	BOOT_TRACE(4)
>> +	/* r0: nfc base. Reloaded after each page copying		*/
>> +	ldr r0, =IMX_NFC_MAIN_AREA0
>> +
>> +	/* r1: starting flash addr to be copied. Updated constantly	*/
>> +	/* bypass the first preloaded pages				*/
>> +	ldr r1, =(IMX_NFC_SPARE_AREA0-IMX_NFC_MAIN_AREA0)
>> +
>> +	/* r2: end of 1st RAM buf. Doesn't change			*/
>> +	ldr r2, =IMX_NFC_MAIN_AREA1
>> +
>> +	/* r12: NFC register base. Doesn't change			*/
>> +	ldr r12, =IMX_NFC_REGS
>> +
>> +	ldr r11, =CONFIG_SYS_NAND_U_BOOT_DST
>> +
>> +	/* r13: end of SDRAM address for copying. Doesn't change	*/
>> +	add r13, r11, #CONFIG_SYS_NAND_U_BOOT_SIZE
>> +
>> +	/* r11: starting SDRAM address for copying. Updated constantly	*/
>> +	add r11, r11, r1
>> +
>> +	/* unlock internal buffer					*/
>> +	ldr r3, =NFC_CONFIG_UNLOCKED
>> +	strh r3, [r12, #NFC_OFFSET_CONFIG]
>> +
>> +	/* enable ECC and mask interrupts				*/
>> +	ldr r3, =(NFC_CONFIG1_ECC_EN | NFC_CONFIG1_INT_MSK)
>> +	strh r3, [r12, #NFC_OFFSET_CONFIG1]
>> +
>> +nfc_read_page:
>> +	BOOT_TRACE(5)
>> +	/*  send NAND_CMD_READ0 command				*/
>> +	ldr r3, =NAND_CMD_READ0;
>> +	strh r3, [r12, #NFC_OFFSET_FLASH_CMD]
>> +
>> +	ldr r3, =NFC_CONFIG2_FCMD
>> +	strh r3, [r12, #NFC_OFFSET_CONFIG2]
>> +	bl do_wait_op_done
>> +
>> +	/* send NAND address to read. TODO small page support		*/
>> +	BOOT_TRACE(6)
>> +	mov r3, r1, lsr #1
>> +	bl do_addr_input	   /* 1st addr cycle */
>> +
>> +	mov r3, r1, lsr #9
>> +	and r3, r3, #0x03
>> +	bl do_addr_input	   /* 2nd addr cycle */
>> +
>> +	mov r3, r1, lsr #11
>> +	bl do_addr_input	   /* 3rd addr cycle */
>> +
>> +	mov r3, r1, lsr #19
>> +	bl do_addr_input	   /* 4th addr cycle */
>> +
>> +	/* Small NAND flashs (== 1Gb) support 5 addr cycles		*/
>> +	mov r3, r1, lsr #27
>> +	bl do_addr_input	   /* 5th addr cycle */
>> +
>> +	/* send NAND_CMD_READSTART command. TODO small page support	*/
>> +	BOOT_TRACE(7)
>> +	mov r3, #NAND_CMD_READSTART;
>> +	strh r3, [r12, #NFC_OFFSET_FLASH_CMD]
>> +	mov r3, #NFC_CONFIG2_FCMD
>> +	strh r3, [r12, #NFC_OFFSET_CONFIG2]
>> +	bl do_wait_op_done
>> +
>> +	/* read and copy buf 0						*/
>> +	BOOT_TRACE(8)
>> +	mov r3, #0
>> +	strh r3, [r12, #NFC_OFFSET_BUF_ADDR]
>> +
>> +	mov r3, #NFC_CONFIG2_FDO_PAGE
>> +	strh r3, [r12, #NFC_OFFSET_CONFIG2]
>> +	bl do_wait_op_done
>> +
>> +	bl test_and_copy_buffer
>> +
>> +	/* read and copy buf 1						*/
>> +	mov r3, #1
>> +	strh r3, [r12, #NFC_OFFSET_BUF_ADDR]
>> +
>> +	mov r3, #NFC_CONFIG2_FDO_PAGE
>> +	strh r3, [r12, #NFC_OFFSET_CONFIG2]
>> +	bl do_wait_op_done
>> +
>> +	bl test_and_copy_buffer
>> +
>> +	/* here we should test if 512B page flash and bypass next buffers */
>> +	/* read and copy buf 2. TODO small page support		*/
>> +	mov r3, #2
>> +	strh r3, [r12, #NFC_OFFSET_BUF_ADDR]
>> +
>> +	mov r3, #NFC_CONFIG2_FDO_PAGE
>> +	strh r3, [r12, #NFC_OFFSET_CONFIG2]
>> +	bl do_wait_op_done
>> +
>> +	bl test_and_copy_buffer
>> +
>> +	/* read and copy buf 3 */
>> +	mov r3, #3
>> +	strh r3, [r12, #NFC_OFFSET_BUF_ADDR]
>> +
>> +	mov r3, #NFC_CONFIG2_FDO_PAGE
>> +	strh r3, [r12, #NFC_OFFSET_CONFIG2]
>> +	bl do_wait_op_done
>> +
>> +	bl test_and_copy_buffer
>> +
>> +	/* is the last page ? */
>> +	BOOT_TRACE(12)
>> +	cmp r11, r13
>> +	bge nand_copy_main_done
>> +
>> +	/* r0: nfc base. Reloaded after each page copying */
>> +	ldr r0, =IMX_NFC_MAIN_AREA0
>> +	/* r2: end of 1st RAM buf. Doesn't change */
>> +	ldr r2, =IMX_NFC_MAIN_AREA1
>> +	b nfc_read_page
>> +
>> +nand_copy_main_done:
>> +	BOOT_TRACE(13)
>> +	.endm /* nand_boot */
>> +
>> +	.macro init_aipi
>> +	/*
>> +	 * setup AIPI1 and AIPI2
>> +	 */
>> +	write32 AIPI1_PSR0, ACFG_AIPI1_PSR0_VAL
>> +	write32 AIPI1_PSR1, ACFG_AIPI1_PSR1_VAL
>> +	write32 AIPI2_PSR0, ACFG_AIPI2_PSR0_VAL
>> +	write32 AIPI2_PSR1, ACFG_AIPI2_PSR1_VAL
>> +
>> +	/* Change SDRAM signal strengh */
>> +	ldr r0, =GPCR
>> +	ldr r1, =ACFG_GPCR_VAL
>> +	ldr r5, [r0]
>> +	orr r5, r5, r1
>> +	str r5, [r0]
>> +
>> +	.endm /* init_aipi */
>> +
>> +	.macro init_clock
>> +	ldr r0, =CSCR
>> +	/* disable MPLL/SPLL first */
>> +	ldr r1, [r0]
>> +	bic r1, r1, #(CSCR_MPEN|CSCR_SPEN)
>> +	str r1, [r0]
>> +
>> + 	/*
>> +	 * pll clock initialization predefined in apf27.h
>> +	 */
>> +	write32 MPCTL0, ACFG_MPCTL0_VAL
>> +	write32 SPCTL0, ACFG_SPCTL0_VAL
>> +
>> +	write32 CSCR, ACFG_CSCR_VAL|CSCR_MPLL_RESTART|CSCR_SPLL_RESTART
>> +
>> +	/*
>> +	 * add some delay here
>> +	 */
>> +	mov r1, #0x1000
>> +	1:  subs r1, r1, #0x1
>> +	bne 1b
>> +
>> +	/* peripheral clock divider */
>> +	write32 PCDR0, ACFG_PCDR0_VAL
>> +	write32 PCDR1, ACFG_PCDR1_VAL
>> +
>> +	/* Configure PCCR0 and PCCR1 */
>> +	write32 PCCR0, ACFG_PCCR0_VAL
>> +	write32 PCCR1, ACFG_PCCR1_VAL
>> +
>> +	.endm /* init_clock */
>> +
>
> Well, this code makes what the driver for NAND is supposed to do.

Yes, this is a nand driver written in asm.
The goal is the have a spl smaller than 2 KB.

>
>> +.globl board_init_f
>> +board_init_f:
>> +
>> +	/*
>> +	 * invalidate I/D cache/TLB and drain write buffer
>> +	 */
>> +	mov r0, #0
>> +	mcr p15, 0, r0, c7, c7, 0	/* invalidate I cache and D cache */
>> +	mcr p15, 0, r0, c8, c7, 0	/* invalidate TLBs */
>> +	mcr p15, 0, r0, c7, c10, 4	/* Drain the write buffer */
>> +
>> +	/*
>> +	 * disable MMU stuff and caches
>> +	 */
>> +	mrc p15, 0, r0, c1, c0, 0
>> +	bic	r0, r0, #0x00002300	/* clear bits 13, 9:8 (--V- --RS) */
>> +	bic	r0, r0, #0x00000087	/* clear bits 7, 2:0 (B--- -CAM) */
>> +	orr	r0, r0, #0x00000002	/* set bit 2 (A) Align */
>> +	orr	r0, r0, #0x00001000	/* set bit 12 (I) I-Cache */
>> +	mcr p15, 0, r0, c1, c0, 0
>> +
>
> Ok, this must be done in assembly - normally is part of lowelevel_init,
> while board_init_f() is already written in C.
>
> Really I was waiting that general code is called, that is
> spl_nand_load_image() and then the driver function. You are pushing a
> parallel way that is, at the end, still the old way to boot (nand_spl).

This board boot from nand, so the SPL should be lower than 2KB.
The SPL start from NFC (nand) buffer, and It has to :
- initialize the ram
- copy itself to another location (ram)
- jump to this another location
- copy u-boot from nand to ram
- jump to ram

We have tried to use SPL framework (with nand driver), but the result
is a SPL bigger than 2 KB, so we can't use it.

To have a SPL smaller than 2 KB, we have written everything in assembler.

Are you agree with this solution for the SPL ?

>> +init_aipi_start:
>> +	init_aipi
>> +
>> +	/* check if sdram has been setup (running within sdram) */
>> +	cmp pc, #0xa0000000 /* start of first sdram memory space */
>> +	blo init_clock_start
>> +	cmp pc, #0xc0000000 /* end of second sdram memory space */
>> +	blo regular_boot
>> +
>> +	/* running from sdram with full code present ->  regular_boot */
>> +init_clock_start:
>> +	init_clock
>> +
>> +init_sdram_start:
>> +	bl setup_sdram_ddr
>> +
>> +	/* save state of previous boot (SDRAM is configured)*/
>> +	BACKUP_TRACE()
>> +
>> +	/* nand_boot BOOT_TRACE(1..13) */
>> +
>> +	nand_boot
>> +
>> +	BOOT_TRACE(14) /* start regular U-Boot */
>> +
>> +regular_boot: /* jump to start of next 2kiB block (U-Boot) */
>> +	ldr r0, =0xfffff800
>> +	and r0, r0, pc
>> +	add pc, r0, #0x800
>> +
>> +do_wait_op_done:
>> +	1:
>> +	ldrh r3, [r12, #NFC_OFFSET_CONFIG2]
>> +	ands r3, r3, #NFC_CONFIG2_INT
>> +	beq 1b
>> +	mov r3, #0x0
>> +	strh r3, [r12, #NFC_OFFSET_CONFIG2]
>> +	mov	pc, lr
>> +
>> +do_addr_input:
>> +	mov r9, lr
>> +	and r3, r3, #0xFF
>> +	strh r3, [r12, #NFC_OFFSET_FLASH_ADDR]
>> +	mov r3, #NFC_CONFIG2_FADD
>> +	strh r3, [r12, #NFC_OFFSET_CONFIG2]
>> +	bl do_wait_op_done
>> +	mov pc, r9
>> +
>> +test_and_copy_buffer:
>> +	/* check for bad block (2 bits error in main or spare are)*/
>> +	BOOT_TRACE(9)
>> +	ldrh r4, [r12, #NFC_OFFSET_ECC_STATUS_RESULT]
>> +	ands r4, r4, #(NFC_ECC_STAT_ERROR2| \
>> +		(NFC_ECC_STAT_ERROR2<<NFC_ECC_STAT_ERM_SHFT))
>> +	bne skip_bad_buffer
>> +
>> +	/* check BI byte of the current spare buffer */
>> +	ldr r4, =IMX_NFC_SPARE_AREA0
>> +	ldrh r3, [r12, #NFC_OFFSET_BUF_ADDR] /* for the current buffer */
>> +	orr  r4, r3, lsl #0x04
>> +
>> +	/* at bi word offset 4. */
>> +	/* Fixme position change betwwen 8 and 16 bits bus */
>> +	ldrh r4, [r4, #0x04]
>> +	and r4, r4, #0x0FF00 /* has to be 0xFFxx */
>> +	cmp r4, #0x0FF00
>> +	bne skip_bad_buffer
>> +
>> +copy_good_buffer:
>> +	/* copying 512 bytes buffer */
>> +	BOOT_TRACE(10)
>> +1:  ldmia r0!, {r3-r10}
>> +	stmia r11!, {r3-r10}
>> +	cmp r0, r2
>> +	blo 1b
>> +	b end_of_copy
>> +
>> +skip_bad_buffer:
>> +	BOOT_TRACE(11)
>> +	/* bad pages do not contain valid data and have to be skip	*/
>> +	add r0, r0, #0x200
>> +
>> +	/* rewind ram addr to start of buffer */
>> +	ldr r3, =(~0x1FF)
>> +	and r11, r11, r3
>> +
>> +end_of_copy:
>> +	add r2, r2, #0x200
>> +	add r1, r1, #0x200
>> +
>> +	mov	pc, lr
>> +
>
>
>> +setup_sdram_ddr:
>> +
>> +	/* wait for SDRAM/LPDDR ready (SDRAMRDY) */
>> +	ldr		r0, =IMX_ESD_BASE
>> +	ldr		r4, =ESDMISC_SDRAM_RDY
>> +2:	ldr		r1, [r0, #ESDMISC_ROF]
>> +	ands		r1, r1, r4
>> +	bpl		2b
>> +
>> +	/* LPDDR Soft Reset Mobile/Low Power DDR SDRAM. */
>> +	ldr		r0, =IMX_ESD_BASE
>> +	ldr		r4, =ACFG_ESDMISC_VAL
>> +	orr		r1, r4, #ESDMISC_MDDR_DL_RST
>> +	str		r1, [r0, #ESDMISC_ROF]
>> +
>> +	/* Hold for more than 200ns */
>> +	ldr		r1, =0x10000
>> +1:	subs		r1, r1, #0x1
>> +	bne		1b
>> +
>> +	str		r4, [r0]
>> +
>> +	ldr		r0, =IMX_ESD_BASE
>> +	ldr		r1, =ACFG_SDRAM_ESDCFG_REGISTER_VAL
>> +	str		r1, [r0, #ESDCFG0_ROF]
>> +
>> +	ldr		r0, =IMX_ESD_BASE
>> +	ldr		r1, =ACFG_PRECHARGE_CMD
>> +	str		r1, [r0, #ESDCTL0_ROF]
>> +
>> +	/* write8(0xA0001000, any value) */
>> +	ldr		r1, =PHYS_SDRAM_1+ACFG_SDRAM_PRECHARGE_ALL_VAL
>> +	strb		r2, [r1]
>> +
>> +	ldr		r1, =ACFG_AUTOREFRESH_CMD
>> +	str		r1, [r0, #ESDCTL0_ROF]
>> +
>> +	ldr 		r4, =PHYS_SDRAM_1	/* CSD0 base address	*/
>> +
>> +	ldr 		r6,=0x7		/* load loop counter	*/
>> +1:	str 		r5,[r4]		/* run auto-refresh cycle to array 0 */
>> +	subs 		r6,r6,#1
>> +	bne 1b
>> +
>> +	ldr		r1, =ACFG_SET_MODE_REG_CMD
>> +	str		r1, [r0, #ESDCTL0_ROF]
>> +
>> +	/* set standard mode register */
>> +	ldr		r4, = PHYS_SDRAM_1+ACFG_SDRAM_MODE_REGISTER_VAL
>> +	strb		r2, [r4]
>> +
>> +	/* set extended mode register */
>> +	ldr		r4, =PHYS_SDRAM_1+ACFG_SDRAM_EXT_MODE_REGISTER_VAL
>> +	strb		r5, [r4]
>> +
>> +	ldr		r1, =ACFG_NORMAL_RW_CMD
>> +	str		r1, [r0, #ESDCTL0_ROF]
>> +
>> +	/* 2nd sdram */
>> +	ldr		r0, =IMX_ESD_BASE
>> +	ldr		r1, =ACFG_SDRAM_ESDCFG_REGISTER_VAL
>> +	str		r1, [r0, #ESDCFG1_ROF]
>> +
>> +	ldr		r0, =IMX_ESD_BASE
>> +	ldr		r1, =ACFG_PRECHARGE_CMD
>> +	str		r1, [r0, #ESDCTL1_ROF]
>> +
>> +	/* write8(0xB0001000, any value) */
>> +	ldr		r1, =PHYS_SDRAM_2+ACFG_SDRAM_PRECHARGE_ALL_VAL
>> +	strb		r2, [r1]
>> +
>> +	ldr		r1, =ACFG_AUTOREFRESH_CMD
>> +	str		r1, [r0, #ESDCTL1_ROF]
>> +
>> +	ldr 		r4, =PHYS_SDRAM_2	/* CSD1 base address */
>> +
>> +	ldr 		r6,=0x7		/* load loop counter */
>> +1:	str 		r5,[r4]		/* run auto-refresh cycle to array 0 */
>> +	subs 		r6,r6,#1
>> +	bne 1b
>> +
>> +	ldr		r1, =ACFG_SET_MODE_REG_CMD
>> +	str		r1, [r0, #ESDCTL1_ROF]
>> +
>> +	/* set standard mode register */
>> +	ldr		r4, =PHYS_SDRAM_2+ACFG_SDRAM_MODE_REGISTER_VAL
>> +	strb		r2, [r4]
>> +
>> +	/* set extended mode register */
>> +	ldr		r4, =PHYS_SDRAM_2+ACFG_SDRAM_EXT_MODE_REGISTER_VAL
>> +	strb		r2, [r4]
>> +
>> +	ldr		r1, =ACFG_NORMAL_RW_CMD
>> +	str		r1, [r0, #ESDCTL1_ROF]
>> +
>> +	mov	pc, lr

Best regards,
Philippe

^ permalink raw reply	[flat|nested] 13+ messages in thread

* [U-Boot] [PATCH v4 2/4] apf27: add support for the armadeus APF27 board
  2013-08-01 17:12     ` trem
@ 2013-08-02 11:12       ` Stefano Babic
  2013-08-02 12:49         ` Fabio Estevam
  0 siblings, 1 reply; 13+ messages in thread
From: Stefano Babic @ 2013-08-02 11:12 UTC (permalink / raw)
  To: u-boot

Hi Philippe,

On 01/08/2013 19:12, trem wrote:
>> Ok, this must be done in assembly - normally is part of lowelevel_init,
>> while board_init_f() is already written in C.
>>
>> Really I was waiting that general code is called, that is
>> spl_nand_load_image() and then the driver function. You are pushing a
>> parallel way that is, at the end, still the old way to boot (nand_spl).
> 
> This board boot from nand, so the SPL should be lower than 2KB.
> The SPL start from NFC (nand) buffer, and It has to :
> - initialize the ram
> - copy itself to another location (ram)
> - jump to this another location
> - copy u-boot from nand to ram
> - jump to ram
> 
> We have tried to use SPL framework (with nand driver), but the result
> is a SPL bigger than 2 KB, so we can't use it.
> 
> To have a SPL smaller than 2 KB, we have written everything in assembler.

Ok, sorry - I am now used with current i.MX where there is not this
constraint. I reread the boot part of i.MX27 manual and I got the point.
I understand there is no other way for the i.MX27.

I would like you add your useful explanation why you add an assembly
NAND driver (so what you have written here in the lines above) to the
commit message, so that is clear why you were forced to use this way
instead of the SPL framework.

> 
> Are you agree with this solution for the SPL ?
> 

I understand there is no other solution ;-)

Best regards,
Stefano

-- 
=====================================================================
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: +49-8142-66989-53 Fax: +49-8142-66989-80 Email: sbabic at denx.de
=====================================================================

^ permalink raw reply	[flat|nested] 13+ messages in thread

* [U-Boot] [PATCH v4 2/4] apf27: add support for the armadeus APF27 board
  2013-08-02 11:12       ` Stefano Babic
@ 2013-08-02 12:49         ` Fabio Estevam
  2013-08-02 13:05           ` Stefano Babic
  0 siblings, 1 reply; 13+ messages in thread
From: Fabio Estevam @ 2013-08-02 12:49 UTC (permalink / raw)
  To: u-boot

On Fri, Aug 2, 2013 at 8:12 AM, Stefano Babic <sbabic@denx.de> wrote:

> I would like you add your useful explanation why you add an assembly
> NAND driver (so what you have written here in the lines above) to the
> commit message, so that is clear why you were forced to use this way
> instead of the SPL framework.
>
>>
>> Are you agree with this solution for the SPL ?
>>
>
> I understand there is no other solution ;-)

mx31 also has the same 2kB limitation and we don't use the NAND driver
in assembly there, right?

^ permalink raw reply	[flat|nested] 13+ messages in thread

* [U-Boot] [PATCH v4 2/4] apf27: add support for the armadeus APF27 board
  2013-08-02 12:49         ` Fabio Estevam
@ 2013-08-02 13:05           ` Stefano Babic
  0 siblings, 0 replies; 13+ messages in thread
From: Stefano Babic @ 2013-08-02 13:05 UTC (permalink / raw)
  To: u-boot

Hi Fabio,

On 02/08/2013 14:49, Fabio Estevam wrote:
> On Fri, Aug 2, 2013 at 8:12 AM, Stefano Babic <sbabic@denx.de> wrote:
> 
>> I would like you add your useful explanation why you add an assembly
>> NAND driver (so what you have written here in the lines above) to the
>> commit message, so that is clear why you were forced to use this way
>> instead of the SPL framework.
>>
>>>
>>> Are you agree with this solution for the SPL ?
>>>
>>
>> I understand there is no other solution ;-)
> 
> mx31 also has the same 2kB limitation and we don't use the NAND driver
> in assembly there, right?
> 

You're absolutely right, thanks for pointing out ! And it uses the
generic framework.

Philippe, could you take a look at the mx31pdk implementation ? SPL is
less thn 2KB (and you can set CONFIG_SPL_MAX_SIZE in your config file):

   1756	      0	      0	   1756	    6dc	./spl/u-boot-spl

Best regards,
Stefano Babic

-- 
=====================================================================
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: +49-8142-66989-53 Fax: +49-8142-66989-80 Email: sbabic at denx.de
=====================================================================

^ permalink raw reply	[flat|nested] 13+ messages in thread

* [U-Boot] [PATCH v4 3/4] apf27: add FPGA support for the apf27 board
  2013-07-28 20:16 [U-Boot] [PATCH v4 0/4] apf27: add support of armadeus apf27 Philippe Reynes
  2013-07-28 20:16 ` [U-Boot] [PATCH v4 1/4] mx27: add missing constant for mx27 Philippe Reynes
  2013-07-28 20:16 ` [U-Boot] [PATCH v4 2/4] apf27: add support for the armadeus APF27 board Philippe Reynes
@ 2013-07-28 20:16 ` Philippe Reynes
  2013-07-28 22:28   ` Wolfgang Denk
  2013-07-28 20:16 ` [U-Boot] [PATCH v4 4/4] Update u-boot-nand.bin to be used with spl Philippe Reynes
  3 siblings, 1 reply; 13+ messages in thread
From: Philippe Reynes @ 2013-07-28 20:16 UTC (permalink / raw)
  To: u-boot

Signed-off-by: Philippe Reynes <tremyfr@yahoo.fr>
Signed-off-by: Eric Jarrige <eric.jarrige@armadeus.org>
---
 board/armadeus/apf27/Makefile |    3 +
 board/armadeus/apf27/apf27.c  |   18 +++
 board/armadeus/apf27/fpga.c   |  250 +++++++++++++++++++++++++++++++++++++++++
 board/armadeus/apf27/fpga.h   |   39 +++++++
 4 files changed, 310 insertions(+), 0 deletions(-)
 create mode 100644 board/armadeus/apf27/fpga.c
 create mode 100644 board/armadeus/apf27/fpga.h

diff --git a/board/armadeus/apf27/Makefile b/board/armadeus/apf27/Makefile
index 08d5d8d..11562a2 100644
--- a/board/armadeus/apf27/Makefile
+++ b/board/armadeus/apf27/Makefile
@@ -29,6 +29,9 @@ LIB	= $(obj)lib$(BOARD).o
 
 ifndef CONFIG_SPL_BUILD
 COBJS	:= apf27.o
+ifdef CONFIG_FPGA
+COBJS	+= fpga.o
+endif
 endif
 
 ifdef CONFIG_SPL_BUILD
diff --git a/board/armadeus/apf27/apf27.c b/board/armadeus/apf27/apf27.c
index f64c71a..7c10539 100644
--- a/board/armadeus/apf27/apf27.c
+++ b/board/armadeus/apf27/apf27.c
@@ -30,6 +30,7 @@
 #include <asm/errno.h>
 #include "apf27.h"
 #include "crc.h"
+#include "fpga.h"
 
 DECLARE_GLOBAL_DATA_PTR;
 
@@ -321,6 +322,23 @@ int misc_init_r(void)
 	struct mtd_device *dev;
 	struct part_info *part;
 
+#if defined(CONFIG_FPGA)
+	/* init and download fpga */
+	if ((autoload) && (0 == strcmp(autoload, "1"))) {
+		if (mtdparts_init() == 0)
+			if (find_dev_and_part("firmware",
+					      &dev, &pnum, &part) == 0) {
+				size = part->size;
+				if (nand_read_skip_bad(&nand_info[0],
+						       part->offset, &size,
+						       NULL, part->size,
+						       firmware_buffer))
+					size = 0;
+			}
+	}
+	APF27_init_fpga(firmware_buffer, size);
+#endif
+
 	/* detect compatibility issue of environment version */
 	s = getenv("env_version");
 	if ((NULL == s) || (0 != strcmp(s, CONFIG_ENV_VERSION))) {
diff --git a/board/armadeus/apf27/fpga.c b/board/armadeus/apf27/fpga.c
new file mode 100644
index 0000000..4c49667
--- /dev/null
+++ b/board/armadeus/apf27/fpga.c
@@ -0,0 +1,250 @@
+/*
+ * (C) Copyright 2002-2012
+ * Eric Jarrige <eric.jarrige@armadeus.org>
+ * Rich Ireland, Enterasys Networks, rireland at enterasys.com.
+ * Keith Outwater, keith_outwater at mvis.com.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ *
+ */
+#include <common.h>
+
+#include <asm/arch/imx-regs.h>
+#include <asm/gpio.h>
+#include <asm/io.h>
+#include <command.h>
+#include <config.h>
+#include "fpga.h"
+#include <spartan3.h>
+#include "apf27.h"
+
+/*
+ * Note that these are pointers to code that is in Flash.  They will be
+ * relocated at runtime.
+ * Spartan2 code is used to download our Spartan 3 :) code is compatible.
+ * Just take care about the file size
+ */
+Xilinx_Spartan3_Slave_Parallel_fns fpga_fns = {
+	fpga_pre_fn,
+	fpga_pgm_fn,
+	fpga_init_fn,
+	NULL,
+	fpga_done_fn,
+	fpga_clk_fn,
+	fpga_cs_fn,
+	fpga_wr_fn,
+	fpga_rdata_fn,
+	fpga_wdata_fn,
+	fpga_busy_fn,
+	fpga_abort_fn,
+	fpga_post_fn,
+};
+
+Xilinx_desc fpga[CONFIG_FPGA_COUNT] = {
+	{Xilinx_Spartan3,
+	 slave_parallel,
+	 1196128l/8,
+	 (void *)&fpga_fns,
+	 0}
+};
+
+/*
+ * Initialize GPIO port B before download
+ */
+int fpga_pre_fn(int cookie)
+{
+	/* Initialize GPIO pins */
+	gpio_set_value(ACFG_FPGA_PWR, 1);
+	imx_gpio_mode(ACFG_FPGA_INIT | GPIO_IN | GPIO_PUEN | GPIO_GPIO);
+	imx_gpio_mode(ACFG_FPGA_DONE | GPIO_IN | GPIO_PUEN | GPIO_GPIO);
+	imx_gpio_mode(ACFG_FPGA_PRG | GPIO_OUT | GPIO_PUEN | GPIO_GPIO);
+	imx_gpio_mode(ACFG_FPGA_CLK | GPIO_OUT | GPIO_PUEN | GPIO_GPIO);
+	imx_gpio_mode(ACFG_FPGA_RW | GPIO_OUT | GPIO_PUEN | GPIO_GPIO);
+	imx_gpio_mode(ACFG_FPGA_CS | GPIO_OUT | GPIO_PUEN | GPIO_GPIO);
+	imx_gpio_mode(ACFG_FPGA_SUSPEND|GPIO_OUT|GPIO_PUEN|GPIO_GPIO);
+	gpio_set_value(ACFG_FPGA_RESET, 1);
+	imx_gpio_mode(ACFG_FPGA_RESET | GPIO_OUT | GPIO_PUEN | GPIO_GPIO);
+	imx_gpio_mode(ACFG_FPGA_PWR | GPIO_OUT | GPIO_PUEN | GPIO_GPIO);
+	gpio_set_value(ACFG_FPGA_PRG, 1);
+	gpio_set_value(ACFG_FPGA_CLK, 1);
+	gpio_set_value(ACFG_FPGA_RW, 1);
+	gpio_set_value(ACFG_FPGA_CS, 1);
+	gpio_set_value(ACFG_FPGA_SUSPEND, 0);
+	gpio_set_value(ACFG_FPGA_PWR, 0);
+	udelay(30000); /*wait until supply started*/
+
+	return cookie;
+}
+
+/*
+ * Set the FPGA's active-low program line to the specified level
+ */
+int fpga_pgm_fn(int assert, int flush, int cookie)
+{
+	debug("%s:%d: FPGA PROGRAM %s", __func__, __LINE__,
+	      assert ? "high" : "low");
+	gpio_set_value(ACFG_FPGA_PRG, !assert);
+	return assert;
+}
+
+/*
+ * Set the FPGA's active-high clock line to the specified level
+ */
+int fpga_clk_fn(int assert_clk, int flush, int cookie)
+{
+	debug("%s:%d: FPGA CLOCK %s", __func__, __LINE__,
+	      assert_clk ? "high" : "low");
+	gpio_set_value(ACFG_FPGA_CLK, !assert_clk);
+	return assert_clk;
+}
+
+/*
+ * Test the state of the active-low FPGA INIT line.  Return 1 on INIT
+ * asserted (low).
+ */
+int fpga_init_fn(int cookie)
+{
+	int value;
+	debug("%s:%d: INIT check... ", __func__, __LINE__);
+	value = gpio_get_value(ACFG_FPGA_INIT);
+	/* printf("init value read %x",value); */
+#ifdef CONFIG_SYS_FPGA_IS_PROTO
+	return value;
+#else
+	return !value;
+#endif
+}
+
+/*
+ * Test the state of the active-high FPGA DONE pin
+ */
+int fpga_done_fn(int cookie)
+{
+	debug("%s:%d: DONE check... %s", __func__, __LINE__,
+	      gpio_get_value(ACFG_FPGA_DONE) ? "high" : "low");
+	return gpio_get_value(ACFG_FPGA_DONE) ? FPGA_SUCCESS : FPGA_FAIL;
+}
+
+/*
+ * Set the FPGA's wr line to the specified level
+ */
+int fpga_wr_fn(int assert_write, int flush, int cookie)
+{
+	debug("%s:%d: FPGA RW... %s ", __func__, __LINE__,
+	      assert_write ? "high" : "low");
+	gpio_set_value(ACFG_FPGA_RW, !assert_write);
+	return assert_write;
+}
+
+int fpga_cs_fn(int assert_cs, int flush, int cookie)
+{
+	debug("%s:%d: FPGA CS %s ", __func__, __LINE__,
+	      assert_cs ? "high" : "low");
+	gpio_set_value(ACFG_FPGA_CS, !assert_cs);
+	return assert_cs;
+}
+
+int fpga_rdata_fn(unsigned char *data, int cookie)
+{
+	debug("%s:%d: FPGA READ DATA %02X ", __func__, __LINE__,
+	      *((char *)ACFG_FPGA_RDATA));
+	*data = (unsigned char)
+		((*((unsigned short *)ACFG_FPGA_RDATA))&0x00FF);
+	return *data;
+}
+
+int fpga_wdata_fn(unsigned char data, int flush, int cookie)
+{
+	debug("%s:%d: FPGA WRITE DATA %02X ", __func__, __LINE__,
+	      data);
+	*((unsigned short *)ACFG_FPGA_WDATA) = data;
+	return data;
+}
+
+int fpga_abort_fn(int cookie)
+{
+	return cookie;
+}
+
+
+int fpga_busy_fn(int cookie)
+{
+	return 1;
+}
+
+int fpga_post_fn(int cookie)
+{
+	debug("%s:%d: FPGA POST ", __func__, __LINE__);
+
+	imx_gpio_mode(ACFG_FPGA_RW | GPIO_PF | GPIO_PUEN);
+	imx_gpio_mode(ACFG_FPGA_CS | GPIO_PF | GPIO_PUEN);
+	imx_gpio_mode(ACFG_FPGA_CLK | GPIO_PF | GPIO_PUEN);
+	gpio_set_value(ACFG_FPGA_PRG, 1);
+	gpio_set_value(ACFG_FPGA_RESET, 0);
+	imx_gpio_mode(ACFG_FPGA_RESET | GPIO_OUT | GPIO_PUEN | GPIO_GPIO);
+	return cookie;
+}
+
+void apf27_fpga_setup(void)
+{
+	struct pll_regs *pll = (struct pll_regs *)IMX_PLL_BASE;
+	struct system_control_regs *system =
+		(struct system_control_regs *)IMX_SYSTEM_CTL_BASE;
+
+	/* Configure FPGA CLKO */
+	writel(ACFG_CCSR_VAL, &pll->ccsr);
+
+	/* Configure strentgh for FPGA */
+	writel(ACFG_DSCR10_VAL, &system->dscr10);
+	writel(ACFG_DSCR3_VAL, &system->dscr3);
+	writel(ACFG_DSCR7_VAL, &system->dscr7);
+	writel(ACFG_DSCR2_VAL, &system->dscr2);
+}
+
+/*
+ * Initialize the fpga.  Return 1 on success, 0 on failure.
+ */
+int APF27_init_fpga(u_char *buffer, size_t size)
+{
+	char *autoload = getenv("firmware_autoload");
+
+	int i, lout = 0;
+
+	apf27_fpga_setup();
+
+	fpga_init();
+
+	for (i = 0; i < CONFIG_FPGA_COUNT; i++) {
+		debug("%s:%d: Adding fpga %d\n", __func__, __LINE__, i);
+		fpga_add(fpga_xilinx, &fpga[i]);
+	}
+
+	if ((size >= fpga[0].size) && (autoload) &&
+	    (0 == strcmp(autoload, "1"))) {
+		if (ctrlc()) {
+			printf("Firmware download stopped!\n");
+		} else if (FPGA_SUCCESS != fpga_load(0, (void *)buffer, size)) {
+			printf("Firmware download failed!\n");
+		} else {
+			printf("Firmware successfully programmed\n");
+			lout = 1;
+		}
+	}
+	return lout;
+}
diff --git a/board/armadeus/apf27/fpga.h b/board/armadeus/apf27/fpga.h
new file mode 100644
index 0000000..e30dd11
--- /dev/null
+++ b/board/armadeus/apf27/fpga.h
@@ -0,0 +1,39 @@
+/*
+ * (C) Copyright 2002-2012
+ * Eric Jarrige <eric.jarrige@armadeus.org>
+ * Rich Ireland, Enterasys Networks, rireland at enterasys.com.
+ * Keith Outwater, keith_outwater at mvis.com.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ *
+ */
+extern int APF27_init_fpga(u_char *buffer, size_t size);
+
+extern int fpga_pre_fn(int cookie);
+extern int fpga_pgm_fn(int assert_pgm, int flush, int cookie);
+extern int fpga_cs_fn(int assert_cs, int flush, int cookie);
+extern int fpga_init_fn(int cookie);
+extern int fpga_done_fn(int cookie);
+extern int fpga_clk_fn(int assert_clk, int flush, int cookie);
+extern int fpga_wr_fn(int assert_write, int flush, int cookie);
+extern int fpga_rdata_fn(unsigned char *data, int cookie);
+extern int fpga_wdata_fn(unsigned char data, int flush, int cookie);
+extern int fpga_abort_fn(int cookie);
+extern int fpga_post_fn(int cookie);
+extern int fpga_busy_fn(int cookie);
-- 
1.7.4.4

^ permalink raw reply related	[flat|nested] 13+ messages in thread

* [U-Boot] [PATCH v4 3/4] apf27: add FPGA support for the apf27 board
  2013-07-28 20:16 ` [U-Boot] [PATCH v4 3/4] apf27: add FPGA support for the apf27 board Philippe Reynes
@ 2013-07-28 22:28   ` Wolfgang Denk
  0 siblings, 0 replies; 13+ messages in thread
From: Wolfgang Denk @ 2013-07-28 22:28 UTC (permalink / raw)
  To: u-boot

Dear Philippe Reynes,

In message <1375042616-24680-4-git-send-email-tremyfr@yahoo.fr> you wrote:
>
> --- /dev/null
> +++ b/board/armadeus/apf27/fpga.c
> @@ -0,0 +1,250 @@
> +/*
> + * (C) Copyright 2002-2012
> + * Eric Jarrige <eric.jarrige@armadeus.org>
> + * Rich Ireland, Enterasys Networks, rireland at enterasys.com.
> + * Keith Outwater, keith_outwater at mvis.com.
> + *
> + * See file CREDITS for list of people who contributed to this
> + * project.
> + *
> + * This program is free software; you can redistribute it and/or
> + * modify it under the terms of the GNU General Public License as
> + * published by the Free Software Foundation; either version 2 of
> + * the License, or (at your option) any later version.
> + *
> + * This program is distributed in the hope that it will be useful,
> + * but WITHOUT ANY WARRANTY; without even the implied warranty of
> + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
> + * GNU General Public License for more details.
> + *
> + * You should have received a copy of the GNU General Public License
> + * along with this program; if not, write to the Free Software
> + * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
> + * MA 02111-1307 USA

Please drop the full header and use a SPDX-License-Identifier instead.
Please fix globally.

Thanks.


Best regards,

Wolfgang Denk

--
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
No user-servicable parts inside. Refer to qualified service personnel.

^ permalink raw reply	[flat|nested] 13+ messages in thread

* [U-Boot] [PATCH v4 4/4] Update u-boot-nand.bin to be used with spl
  2013-07-28 20:16 [U-Boot] [PATCH v4 0/4] apf27: add support of armadeus apf27 Philippe Reynes
                   ` (2 preceding siblings ...)
  2013-07-28 20:16 ` [U-Boot] [PATCH v4 3/4] apf27: add FPGA support for the apf27 board Philippe Reynes
@ 2013-07-28 20:16 ` Philippe Reynes
  2013-07-29 22:29   ` Scott Wood
  3 siblings, 1 reply; 13+ messages in thread
From: Philippe Reynes @ 2013-07-28 20:16 UTC (permalink / raw)
  To: u-boot

Signed-off-by: Philippe Reynes <tremyfr@yahoo.fr>
Signed-off-by: Eric Jarrige <eric.jarrige@armadeus.org>
---
 Makefile |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)

diff --git a/Makefile b/Makefile
index 4218226..b971f30 100644
--- a/Makefile
+++ b/Makefile
@@ -617,8 +617,14 @@ $(obj)u-boot.lds: $(LDSCRIPT)
 nand_spl:	$(TIMESTAMP_FILE) $(VERSION_FILE) depend
 		$(MAKE) -C nand_spl/board/$(BOARDDIR) all
 
+ifeq ($(CONFIG_SPL),y)
+$(obj)u-boot-nand.bin:    $(obj)u-boot.bin $(obj)spl/u-boot-spl.bin
+		$(OBJCOPY) ${OBJCFLAGS} --pad-to=$(CONFIG_SPL_PAD_TO) -O binary $(obj)spl/u-boot-spl $(obj)spl/u-boot-spl-pad.bin && \
+		cat $(obj)spl/u-boot-spl-pad.bin $(obj)u-boot.bin > $(obj)u-boot-nand.bin
+else
 $(obj)u-boot-nand.bin:	nand_spl $(obj)u-boot.bin
 		cat $(obj)nand_spl/u-boot-spl-16k.bin $(obj)u-boot.bin > $(obj)u-boot-nand.bin
+endif
 
 $(obj)spl/u-boot-spl.bin:	$(SUBDIR_TOOLS) depend
 		$(MAKE) -C spl all
-- 
1.7.4.4

^ permalink raw reply related	[flat|nested] 13+ messages in thread

* [U-Boot] [PATCH v4 4/4] Update u-boot-nand.bin to be used with spl
  2013-07-28 20:16 ` [U-Boot] [PATCH v4 4/4] Update u-boot-nand.bin to be used with spl Philippe Reynes
@ 2013-07-29 22:29   ` Scott Wood
  0 siblings, 0 replies; 13+ messages in thread
From: Scott Wood @ 2013-07-29 22:29 UTC (permalink / raw)
  To: u-boot

On 07/28/2013 03:16:56 PM, Philippe Reynes wrote:
> Signed-off-by: Philippe Reynes <tremyfr@yahoo.fr>
> Signed-off-by: Eric Jarrige <eric.jarrige@armadeus.org>
> ---
>  Makefile |    6 ++++++
>  1 files changed, 6 insertions(+), 0 deletions(-)
> 
> diff --git a/Makefile b/Makefile
> index 4218226..b971f30 100644
> --- a/Makefile
> +++ b/Makefile
> @@ -617,8 +617,14 @@ $(obj)u-boot.lds: $(LDSCRIPT)
>  nand_spl:	$(TIMESTAMP_FILE) $(VERSION_FILE) depend
>  		$(MAKE) -C nand_spl/board/$(BOARDDIR) all
> 
> +ifeq ($(CONFIG_SPL),y)
> +$(obj)u-boot-nand.bin:    $(obj)u-boot.bin $(obj)spl/u-boot-spl.bin
> +		$(OBJCOPY) ${OBJCFLAGS} --pad-to=$(CONFIG_SPL_PAD_TO)  
> -O binary $(obj)spl/u-boot-spl $(obj)spl/u-boot-spl-pad.bin && \
> +		cat $(obj)spl/u-boot-spl-pad.bin $(obj)u-boot.bin >  
> $(obj)u-boot-nand.bin
> +else
>  $(obj)u-boot-nand.bin:	nand_spl $(obj)u-boot.bin
>  		cat $(obj)nand_spl/u-boot-spl-16k.bin  
> $(obj)u-boot.bin > $(obj)u-boot-nand.bin
> +endif
> 
>  $(obj)spl/u-boot-spl.bin:	$(SUBDIR_TOOLS) depend
>  		$(MAKE) -C spl all

u-boot-nand.bin is from the legacy nand_spl subsystem.  You should be  
using u-boot-with-spl.bin if you want this sort of image concatenation  
with the new SPL.

-Scott

^ permalink raw reply	[flat|nested] 13+ messages in thread

end of thread, other threads:[~2013-08-02 13:05 UTC | newest]

Thread overview: 13+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2013-07-28 20:16 [U-Boot] [PATCH v4 0/4] apf27: add support of armadeus apf27 Philippe Reynes
2013-07-28 20:16 ` [U-Boot] [PATCH v4 1/4] mx27: add missing constant for mx27 Philippe Reynes
2013-07-29  8:17   ` Stefano Babic
2013-07-28 20:16 ` [U-Boot] [PATCH v4 2/4] apf27: add support for the armadeus APF27 board Philippe Reynes
2013-07-29  9:43   ` Stefano Babic
2013-08-01 17:12     ` trem
2013-08-02 11:12       ` Stefano Babic
2013-08-02 12:49         ` Fabio Estevam
2013-08-02 13:05           ` Stefano Babic
2013-07-28 20:16 ` [U-Boot] [PATCH v4 3/4] apf27: add FPGA support for the apf27 board Philippe Reynes
2013-07-28 22:28   ` Wolfgang Denk
2013-07-28 20:16 ` [U-Boot] [PATCH v4 4/4] Update u-boot-nand.bin to be used with spl Philippe Reynes
2013-07-29 22:29   ` Scott Wood

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