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* [U-Boot] [PATCH v4 1/4] MX5: Make the weim structure complete
@ 2011-05-19 19:27 Fabio Estevam
  2011-05-19 19:27 ` [U-Boot] [PATCH v4 2/4] MX5: Add iomux structure Fabio Estevam
  2011-05-20  8:37 ` [U-Boot] [PATCH v4 1/4] MX5: Make the weim structure complete Stefano Babic
  0 siblings, 2 replies; 5+ messages in thread
From: Fabio Estevam @ 2011-05-19 19:27 UTC (permalink / raw)
  To: u-boot

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
---
Changes since v3:
- No changes
Changes since v2:
- Add CS1_BASE_ADDR for MX51
- Add WEIM Registers
 arch/arm/include/asm/arch-mx5/imx-regs.h |  131 ++++++++++++++++++++++++++++--
 1 files changed, 125 insertions(+), 6 deletions(-)

diff --git a/arch/arm/include/asm/arch-mx5/imx-regs.h b/arch/arm/include/asm/arch-mx5/imx-regs.h
index a1849f8..b65b11f 100644
--- a/arch/arm/include/asm/arch-mx5/imx-regs.h
+++ b/arch/arm/include/asm/arch-mx5/imx-regs.h
@@ -32,6 +32,7 @@
 #define CSD0_BASE_ADDR          0x90000000
 #define CSD1_BASE_ADDR          0xA0000000
 #define NFC_BASE_ADDR_AXI       0xCFFF0000
+#define CS1_BASE_ADDR           0xB8000000
 #elif defined(CONFIG_MX53)
 #define IPU_CTRL_BASE_ADDR      0x18000000
 #define SPBA0_BASE_ADDR         0x50000000
@@ -41,6 +42,7 @@
 #define CSD1_BASE_ADDR          0xB0000000
 #define NFC_BASE_ADDR_AXI       0xF7FF0000
 #define IRAM_BASE_ADDR          0xF8000000
+#define CS1_BASE_ADDR           0xF4000000
 #else
 #error "CPU_TYPE not defined"
 #endif
@@ -129,6 +131,90 @@
 #define SAHARA_BASE_ADDR	(AIPS2_BASE_ADDR + 0x000F8000)
 
 /*
+ * WEIM CSnGCR1
+ */
+#define CSEN(x)	(x)
+#define SWR(x)		((x) << 1)
+#define SRD(x)		((x) << 2)
+#define MUM(x)		((x) << 3)
+#define WFL(x)		((x) << 4)
+#define RFL(x)		((x) << 5)
+#define CRE(x)		((x) << 6)
+#define CREP(x)	((x) << 7)
+#define BL(x)		(((x) & 0x7) << 8)
+#define WC(x)		((x) << 11)
+#define BCD(x)		(((x) & 0x3) << 12)
+#define BCS(x)		(((x) & 0x3) << 14)
+#define DSZ(x)		(((x) & 0x7) << 16)
+#define SP(x)		((x) << 19)
+#define CSREC(x)	(((x) & 0x7) << 20)
+#define AUS(x)		((x) << 23)
+#define GBC(x)		(((x) & 0x7) << 24)
+#define WP(x)		((x) << 27)
+#define PSZ(x)		(((x) & 0x0f << 28)
+
+/*
+ * WEIM CSnGCR2
+ */
+#define ADH(x)		(((x) & 0x3))
+#define DAPS(x)	(((x) & 0x0f << 4)
+#define DAE(x)		((x) << 8)
+#define DAP(x)		((x) << 9)
+#define MUX16_BYP(x)	((x) << 12)
+
+/*
+ * WEIM CSnRCR1
+ */
+#define RCSN(x)	(((x) & 0x7))
+#define RCSA(x)	(((x) & 0x7) << 4)
+#define OEN(x)		(((x) & 0x7) << 8)
+#define OEA(x)		(((x) & 0x7) << 12)
+#define RADVN(x)	(((x) & 0x7) << 16)
+#define RAL(x)		((x) << 19)
+#define RADVA(x)	(((x) & 0x7) << 20)
+#define RWSC(x)	(((x) & 0x3f) << 24)
+
+/*
+ * WEIM CSnRCR2
+ */
+#define RBEN(x)	(((x) & 0x7))
+#define RBE(x)		((x) << 3)
+#define RBEA(x)	(((x) & 0x7) << 4)
+#define RL(x)		(((x) & 0x3) << 8)
+#define PAT(x)		(((x) & 0x7) << 12)
+#define APR(x)		((x) << 15)
+
+/*
+ * WEIM CSnWCR1
+ */
+#define WCSN(x)	(((x) & 0x7))
+#define WCSA(x)	(((x) & 0x7) << 3)
+#define WEN(x)		(((x) & 0x7) << 6)
+#define WEA(x)		(((x) & 0x7) << 9)
+#define WBEN(x)	(((x) & 0x7) << 12)
+#define WBEA(x)	(((x) & 0x7) << 15)
+#define WADVN(x)	(((x) & 0x7) << 18)
+#define WADVA(x)	(((x) & 0x7) << 21)
+#define WWSC(x)	(((x) & 0x3f) << 24)
+#define WBED1(x)	((x) << 30)
+#define WAL(x)		((x) << 31)
+
+/*
+ * WEIM CSnWCR2
+ */
+#define WBED(x)	(x)
+
+/*
+ * WEIM WCR
+ */
+#define BCM(x)		(x)
+#define GBCD(x)	(((x) & 0x3) << 1)
+#define INTEN(x)	((x) << 4)
+#define INTPOL(x)	((x) << 5)
+#define WDOG_EN(x)	((x) << 8)
+#define WDOG_LIMIT(x)	(((x) & 0x3) << 9)
+
+/*
  * Number of GPIO pins per port
  */
 #define GPIO_NUM_PIN            32
@@ -231,12 +317,45 @@ struct clkctl {
 
 /* WEIM registers */
 struct weim {
-	u32	csgcr1;
-	u32	csgcr2;
-	u32	csrcr1;
-	u32	csrcr2;
-	u32	cswcr1;
-	u32	cswcr2;
+	u32	cs0gcr1;
+	u32	cs0gcr2;
+	u32	cs0rcr1;
+	u32	cs0rcr2;
+	u32	cs0wcr1;
+	u32	cs0wcr2;
+	u32	cs1gcr1;
+	u32	cs1gcr2;
+	u32	cs1rcr1;
+	u32	cs1rcr2;
+	u32	cs1wcr1;
+	u32	cs1wcr2;
+	u32	cs2gcr1;
+	u32	cs2gcr2;
+	u32	cs2rcr1;
+	u32	cs2rcr2;
+	u32	cs2wcr1;
+	u32	cs2wcr2;
+	u32	cs3gcr1;
+	u32	cs3gcr2;
+	u32	cs3rcr1;
+	u32	cs3rcr2;
+	u32	cs3wcr1;
+	u32	cs3wcr2;
+	u32	cs4gcr1;
+	u32	cs4gcr2;
+	u32	cs4rcr1;
+	u32	cs4rcr2;
+	u32	cs4wcr1;
+	u32	cs4wcr2;
+	u32	cs5gcr1;
+	u32	cs5gcr2;
+	u32	cs5rcr1;
+	u32	cs5rcr2;
+	u32	cs5wcr1;
+	u32	cs5wcr2;
+	u32	wcr;
+	u32	wiar;
+	u32	ear;
 };
 
 /* GPIO Registers */
-- 
1.6.0.4

^ permalink raw reply related	[flat|nested] 5+ messages in thread

* [U-Boot] [PATCH v4 2/4] MX5: Add iomux structure
  2011-05-19 19:27 [U-Boot] [PATCH v4 1/4] MX5: Make the weim structure complete Fabio Estevam
@ 2011-05-19 19:27 ` Fabio Estevam
  2011-05-19 19:27   ` [U-Boot] [PATCH v4 3/4] MX5: Introduce a function for setting the chip select size Fabio Estevam
  2011-05-20  8:37 ` [U-Boot] [PATCH v4 1/4] MX5: Make the weim structure complete Stefano Babic
  1 sibling, 1 reply; 5+ messages in thread
From: Fabio Estevam @ 2011-05-19 19:27 UTC (permalink / raw)
  To: u-boot

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
---
Changes since v3:
- No changes
Changes since v2:
- Distinguish iomuxc struct between MX51 and MX53

 arch/arm/include/asm/arch-mx5/imx-regs.h |   23 +++++++++++++++++++++++
 1 files changed, 23 insertions(+), 0 deletions(-)

diff --git a/arch/arm/include/asm/arch-mx5/imx-regs.h b/arch/arm/include/asm/arch-mx5/imx-regs.h
index b65b11f..3c61c7f 100644
--- a/arch/arm/include/asm/arch-mx5/imx-regs.h
+++ b/arch/arm/include/asm/arch-mx5/imx-regs.h
@@ -358,6 +358,29 @@ struct weim {
 	u32	ear;
 };
 
+#if defined(CONFIG_MX51)
+struct iomuxc {
+	u32	gpr0;
+	u32	gpr1;
+	u32	omux0;
+	u32	omux1;
+	u32	omux2;
+	u32	omux3;
+	u32	omux4;
+};
+#elif defined(CONFIG_MX53)
+struct iomuxc {
+	u32	gpr0;
+	u32	gpr1;
+	u32	gpr2;
+	u32	omux0;
+	u32	omux1;
+	u32	omux2;
+	u32	omux3;
+	u32	omux4;
+};
+#endif
+
 /* GPIO Registers */
 struct gpio_regs {
 	u32	gpio_dr;
-- 
1.6.0.4

^ permalink raw reply related	[flat|nested] 5+ messages in thread

* [U-Boot] [PATCH v4 3/4] MX5: Introduce a function for setting the chip select size
  2011-05-19 19:27 ` [U-Boot] [PATCH v4 2/4] MX5: Add iomux structure Fabio Estevam
@ 2011-05-19 19:27   ` Fabio Estevam
  2011-05-19 19:27     ` [U-Boot] [PATCH v4 4/4] MX53: Add initial support for MX53ARD Fabio Estevam
  0 siblings, 1 reply; 5+ messages in thread
From: Fabio Estevam @ 2011-05-19 19:27 UTC (permalink / raw)
  To: u-boot

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
---
Changes since v3:
- Print the chip size in the case of error

 arch/arm/cpu/armv7/mx5/soc.c              |   30 +++++++++++++++++++++++++++++
 arch/arm/include/asm/arch-mx5/imx-regs.h  |    5 ++++
 arch/arm/include/asm/arch-mx5/sys_proto.h |    2 +-
 3 files changed, 36 insertions(+), 1 deletions(-)

diff --git a/arch/arm/cpu/armv7/mx5/soc.c b/arch/arm/cpu/armv7/mx5/soc.c
index 40b8b56..e599df8 100644
--- a/arch/arm/cpu/armv7/mx5/soc.c
+++ b/arch/arm/cpu/armv7/mx5/soc.c
@@ -163,6 +163,36 @@ int cpu_mmc_init(bd_t *bis)
 #endif
 }
 
+void set_chipselect_size(int const cs_size)
+{
+	unsigned int reg;
+	struct iomuxc *iomuxc_regs = (struct weim *)IOMUXC_BASE_ADDR;
+	reg = readl(&iomuxc_regs->gpr1);
+
+	switch (cs_size) {
+	case CS0_128:
+		reg &= ~0x7;	/* CS0=128MB, CS1=0, CS2=0, CS3=0 */
+		reg |= 0x5;
+		break;
+	case CS0_64M_CS1_64M:
+		reg &= ~0x3F;	/* CS0=64MB, CS1=64MB, CS2=0, CS3=0 */
+		reg |= 0x1B;
+		break;
+	case CS0_64M_CS1_32M_CS2_32M:
+		reg &= ~0x1FF;	/* CS0=64MB, CS1=32MB, CS2=32MB, CS3=0 */
+		reg |= 0x4B;
+		break;
+	case CS0_32M_CS1_32M_CS2_32M_CS3_32M:
+		reg &= ~0xFFF;  /* CS0=32MB, CS1=32MB, CS2=32MB, CS3=32MB */
+		reg |= 0x249;
+		break;
+	default:
+		printf("Unknown chip select size: %d\n", cs_size);
+		break;
+	}
+
+	writel(reg, &iomuxc_regs->gpr1);
+}
 
 void reset_cpu(ulong addr)
 {
diff --git a/arch/arm/include/asm/arch-mx5/imx-regs.h b/arch/arm/include/asm/arch-mx5/imx-regs.h
index 9d2046a..5163614 100644
--- a/arch/arm/include/asm/arch-mx5/imx-regs.h
+++ b/arch/arm/include/asm/arch-mx5/imx-regs.h
@@ -214,6 +214,11 @@
 #define WDOG_EN(x)	((x) << 8)
 #define WDOG_LIMIT(x)	(((x) & 0x3) << 9)
 
+#define CS0_128					0
+#define CS0_64M_CS1_64M				1
+#define CS0_64M_CS1_32M_CS2_32M			2
+#define CS0_32M_CS1_32M_CS2_32M_CS3_32M		3
+
 /*
  * Number of GPIO pins per port
  */
diff --git a/arch/arm/include/asm/arch-mx5/sys_proto.h b/arch/arm/include/asm/arch-mx5/sys_proto.h
index f687503..ce63675 100644
--- a/arch/arm/include/asm/arch-mx5/sys_proto.h
+++ b/arch/arm/include/asm/arch-mx5/sys_proto.h
@@ -27,5 +27,5 @@
 u32 get_cpu_rev(void);
 #define is_soc_rev(rev)	((get_cpu_rev() & 0xFF) - rev)
 void sdelay(unsigned long);
-
+void set_chipselect_size(int const);
 #endif
-- 
1.6.0.4

^ permalink raw reply related	[flat|nested] 5+ messages in thread

* [U-Boot] [PATCH v4 4/4] MX53: Add initial support for MX53ARD
  2011-05-19 19:27   ` [U-Boot] [PATCH v4 3/4] MX5: Introduce a function for setting the chip select size Fabio Estevam
@ 2011-05-19 19:27     ` Fabio Estevam
  0 siblings, 0 replies; 5+ messages in thread
From: Fabio Estevam @ 2011-05-19 19:27 UTC (permalink / raw)
  To: u-boot

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
---
Changes since v3:
- No changes
Changes since v2:
- Use macros for setting up weim register
- Use set_chipselect_size function
- Rename the file to imximage_dd3.cfg to make explicit the DDR type.

 MAINTAINERS                              |    1 +
 board/freescale/mx53ard/Makefile         |   48 +++++
 board/freescale/mx53ard/imximage_dd3.cfg |   96 +++++++++
 board/freescale/mx53ard/mx53ard.c        |  308 ++++++++++++++++++++++++++++++
 boards.cfg                               |    1 +
 include/configs/mx53ard.h                |  198 +++++++++++++++++++
 6 files changed, 652 insertions(+), 0 deletions(-)
 create mode 100644 board/freescale/mx53ard/Makefile
 create mode 100644 board/freescale/mx53ard/imximage_dd3.cfg
 create mode 100644 board/freescale/mx53ard/mx53ard.c
 create mode 100644 include/configs/mx53ard.h

diff --git a/MAINTAINERS b/MAINTAINERS
index 07237e3..b63f53f 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -639,6 +639,7 @@ Kristoffer Ericson <kristoffer.ericson@gmail.com>
 Fabio Estevam <fabio.estevam@freescale.com>
 
 	mx31pdk		i.MX31
+	mx53ard		i.MX53
 	mx53smd		i.MX53
 
 Peter Figuli <peposh@etc.sk>
diff --git a/board/freescale/mx53ard/Makefile b/board/freescale/mx53ard/Makefile
new file mode 100644
index 0000000..c48ece8
--- /dev/null
+++ b/board/freescale/mx53ard/Makefile
@@ -0,0 +1,48 @@
+#
+# Copyright (C) 2007, Guennadi Liakhovetski <lg@denx.de>
+#
+# (C) Copyright 2011 Freescale Semiconductor, Inc.
+#
+# 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
+
+COBJS	:= mx53ard.o
+
+SRCS	:= $(SOBJS:.o=.S) $(COBJS:.o=.c)
+OBJS	:= $(addprefix $(obj),$(COBJS))
+SOBJS	:= $(addprefix $(obj),$(SOBJS))
+
+$(LIB):	$(obj).depend $(OBJS) $(SOBJS)
+	$(call cmd_link_o_target, $(OBJS) $(SOBJS))
+
+clean:
+	rm -f $(SOBJS) $(OBJS)
+
+distclean:	clean
+	rm -f $(LIB) core *.bak .depend
+
+#########################################################################
+
+# defines $(obj).depend target
+include $(SRCTREE)/rules.mk
+
+sinclude $(obj).depend
+
+#########################################################################
diff --git a/board/freescale/mx53ard/imximage_dd3.cfg b/board/freescale/mx53ard/imximage_dd3.cfg
new file mode 100644
index 0000000..0f298ab
--- /dev/null
+++ b/board/freescale/mx53ard/imximage_dd3.cfg
@@ -0,0 +1,96 @@
+#
+# (C) Copyright 2009
+# Stefano Babic DENX Software Engineering sbabic at denx.de.
+#
+# 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. 51 Franklin Street Fifth Floor Boston,
+# MA 02110-1301 USA
+#
+# Refer docs/README.imxmage for more details about how-to configure
+# and create imximage boot image
+#
+# The syntax is taken as close as possible with the kwbimage
+
+# image version
+
+IMAGE_VERSION 2
+
+# Boot Device : one of
+# spi, sd (the board has no nand neither onenand)
+
+BOOT_FROM	sd
+
+# Device Configuration Data (DCD)
+#
+# Each entry must have the format:
+# Addr-type           Address        Value
+#
+# where:
+#	Addr-type register length (1,2 or 4 bytes)
+#	Address	  absolute address of the register
+#	value	  value to be stored in the register
+DATA 4 0x53fa8554 0x00300000
+DATA 4 0x53fa8558 0x00300040
+DATA 4 0x53fa8560 0x00300000
+DATA 4 0x53fa8564 0x00300040
+DATA 4 0x53fa8568 0x00300040
+DATA 4 0x53fa8570 0x00300000
+DATA 4 0x53fa8574 0x00300000
+DATA 4 0x53fa8578 0x00300000
+DATA 4 0x53fa857c 0x00300040
+DATA 4 0x53fa8580 0x00300040
+DATA 4 0x53fa8584 0x00300000
+DATA 4 0x53fa8588 0x00300000
+DATA 4 0x53fa8590 0x00300040
+DATA 4 0x53fa8594 0x00300000
+DATA 4 0x53fa86f0 0x00300000
+DATA 4 0x53fa86f4 0x00000000
+DATA 4 0x53fa86fc 0x00000000
+DATA 4 0x53fa8714 0x00000000
+DATA 4 0x53fa8718 0x00300000
+DATA 4 0x53fa871c 0x00300000
+DATA 4 0x53fa8720 0x00300000
+DATA 4 0x53fa8724 0x04000000
+DATA 4 0x53fa8728 0x00300000
+DATA 4 0x53fa872c 0x00300000
+DATA 4 0x63fd9088 0x35343535
+DATA 4 0x63fd9090 0x4d444c44
+DATA 4 0x63fd907c 0x01370138
+DATA 4 0x63fd9080 0x013b013c
+DATA 4 0x63fd9018 0x00011740
+DATA 4 0x63fd9000 0xc3190000
+DATA 4 0x63fd900c 0x9f5152e3
+DATA 4 0x63fd9010 0xb68e8a63
+DATA 4 0x63fd9014 0x01ff00db
+DATA 4 0x63fd902c 0x000026d2
+DATA 4 0x63fd9030 0x009f0e21
+DATA 4 0x63fd9008 0x12273030
+DATA 4 0x63fd9004 0x0002002d
+DATA 4 0x63fd901c 0x00008032
+DATA 4 0x63fd901c 0x00008033
+DATA 4 0x63fd901c 0x00028031
+DATA 4 0x63fd901c 0x092080b0
+DATA 4 0x63fd901c 0x04008040
+DATA 4 0x63fd901c 0x0000803a
+DATA 4 0x63fd901c 0x0000803b
+DATA 4 0x63fd901c 0x00028039
+DATA 4 0x63fd901c 0x09208138
+DATA 4 0x63fd901c 0x04008048
+DATA 4 0x63fd9020 0x00001800
+DATA 4 0x63fd9040 0x04b80003
+DATA 4 0x63fd9058 0x00022227
+DATA 4 0x63fd901C 0x00000000
diff --git a/board/freescale/mx53ard/mx53ard.c b/board/freescale/mx53ard/mx53ard.c
new file mode 100644
index 0000000..7ba5789
--- /dev/null
+++ b/board/freescale/mx53ard/mx53ard.c
@@ -0,0 +1,308 @@
+/*
+ * (C) Copyright 2011 Freescale Semiconductor, Inc.
+ *
+ * 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/io.h>
+#include <asm/arch/imx-regs.h>
+#include <asm/arch/mx5x_pins.h>
+#include <asm/arch/sys_proto.h>
+#include <asm/arch/crm_regs.h>
+#include <asm/arch/iomux.h>
+#include <asm/errno.h>
+#include <netdev.h>
+#include <mmc.h>
+#include <fsl_esdhc.h>
+#include <mxc_gpio.h>
+
+#define ETHERNET_INT		(1 * 32 + 31)  /* GPIO2_31 */
+
+DECLARE_GLOBAL_DATA_PTR;
+
+u32 get_board_rev(void)
+{
+	return get_cpu_rev();
+}
+
+int dram_init(void)
+{
+	u32 size1, size2;
+
+	size1 = get_ram_size((volatile void *)PHYS_SDRAM_1, PHYS_SDRAM_1_SIZE);
+	size2 = get_ram_size((volatile void *)PHYS_SDRAM_2, PHYS_SDRAM_2_SIZE);
+
+	gd->ram_size = size1 + size2;
+
+	return 0;
+}
+void dram_init_banksize(void)
+{
+	gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
+	gd->bd->bi_dram[0].size = PHYS_SDRAM_1_SIZE;
+
+	gd->bd->bi_dram[1].start = PHYS_SDRAM_2;
+	gd->bd->bi_dram[1].size = PHYS_SDRAM_2_SIZE;
+}
+
+static void setup_iomux_uart(void)
+{
+	/* UART1 RXD */
+	mxc_request_iomux(MX53_PIN_ATA_DMACK, IOMUX_CONFIG_ALT3);
+	mxc_iomux_set_pad(MX53_PIN_ATA_DMACK,
+				PAD_CTL_HYS_ENABLE | PAD_CTL_DRV_HIGH |
+				PAD_CTL_PUE_PULL | PAD_CTL_PKE_ENABLE |
+				PAD_CTL_HYS_ENABLE | PAD_CTL_100K_PU |
+				PAD_CTL_ODE_OPENDRAIN_ENABLE);
+	mxc_iomux_set_input(MX53_UART1_IPP_UART_RXD_MUX_SELECT_INPUT, 0x3);
+
+	/* UART1 TXD */
+	mxc_request_iomux(MX53_PIN_ATA_DIOW, IOMUX_CONFIG_ALT3);
+	mxc_iomux_set_pad(MX53_PIN_ATA_DIOW,
+				PAD_CTL_HYS_ENABLE | PAD_CTL_DRV_HIGH |
+				PAD_CTL_PUE_PULL | PAD_CTL_PKE_ENABLE |
+				PAD_CTL_HYS_ENABLE | PAD_CTL_100K_PU |
+				PAD_CTL_ODE_OPENDRAIN_ENABLE);
+}
+
+#ifdef CONFIG_FSL_ESDHC
+struct fsl_esdhc_cfg esdhc_cfg[2] = {
+	{MMC_SDHC1_BASE_ADDR, 1, 1},
+	{MMC_SDHC2_BASE_ADDR, 1, 1},
+};
+
+int board_mmc_getcd(u8 *cd, struct mmc *mmc)
+{
+	struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv;
+
+	if (cfg->esdhc_base == MMC_SDHC1_BASE_ADDR)
+		*cd = mxc_gpio_get(1); /*GPIO1_1*/
+	else
+		*cd = mxc_gpio_get(4); /*GPIO1_4*/
+
+	return 0;
+}
+
+int board_mmc_init(bd_t *bis)
+{
+	u32 index;
+	s32 status = 0;
+
+	for (index = 0; index < CONFIG_SYS_FSL_ESDHC_NUM; index++) {
+		switch (index) {
+		case 0:
+			mxc_request_iomux(MX53_PIN_SD1_CMD, IOMUX_CONFIG_ALT0);
+			mxc_request_iomux(MX53_PIN_SD1_CLK, IOMUX_CONFIG_ALT0);
+			mxc_request_iomux(MX53_PIN_SD1_DATA0,
+						IOMUX_CONFIG_ALT0);
+			mxc_request_iomux(MX53_PIN_SD1_DATA1,
+						IOMUX_CONFIG_ALT0);
+			mxc_request_iomux(MX53_PIN_SD1_DATA2,
+						IOMUX_CONFIG_ALT0);
+			mxc_request_iomux(MX53_PIN_SD1_DATA3,
+						IOMUX_CONFIG_ALT0);
+
+			mxc_iomux_set_pad(MX53_PIN_SD1_CMD, 0x1E4);
+			mxc_iomux_set_pad(MX53_PIN_SD1_CLK, 0xD4);
+			mxc_iomux_set_pad(MX53_PIN_SD1_DATA0, 0x1D4);
+			mxc_iomux_set_pad(MX53_PIN_SD1_DATA1, 0x1D4);
+			mxc_iomux_set_pad(MX53_PIN_SD1_DATA2, 0x1D4);
+			mxc_iomux_set_pad(MX53_PIN_SD1_DATA3, 0x1D4);
+			break;
+		case 1:
+			mxc_request_iomux(MX53_PIN_SD2_CMD,
+				IOMUX_CONFIG_ALT0 | IOMUX_CONFIG_SION);
+			mxc_request_iomux(MX53_PIN_SD2_CLK,
+				IOMUX_CONFIG_ALT0 | IOMUX_CONFIG_SION);
+			mxc_request_iomux(MX53_PIN_SD2_DATA0,
+						IOMUX_CONFIG_ALT0);
+			mxc_request_iomux(MX53_PIN_SD2_DATA1,
+						IOMUX_CONFIG_ALT0);
+			mxc_request_iomux(MX53_PIN_SD2_DATA2,
+						IOMUX_CONFIG_ALT0);
+			mxc_request_iomux(MX53_PIN_SD2_DATA3,
+						IOMUX_CONFIG_ALT0);
+			mxc_request_iomux(MX53_PIN_ATA_DATA12,
+						IOMUX_CONFIG_ALT2);
+			mxc_request_iomux(MX53_PIN_ATA_DATA13,
+						IOMUX_CONFIG_ALT2);
+			mxc_request_iomux(MX53_PIN_ATA_DATA14,
+						IOMUX_CONFIG_ALT2);
+			mxc_request_iomux(MX53_PIN_ATA_DATA15,
+						IOMUX_CONFIG_ALT2);
+
+			mxc_iomux_set_pad(MX53_PIN_SD2_CMD, 0x1E4);
+			mxc_iomux_set_pad(MX53_PIN_SD2_CLK, 0xD4);
+			mxc_iomux_set_pad(MX53_PIN_SD2_DATA0, 0x1D4);
+			mxc_iomux_set_pad(MX53_PIN_SD2_DATA1, 0x1D4);
+			mxc_iomux_set_pad(MX53_PIN_SD2_DATA2, 0x1D4);
+			mxc_iomux_set_pad(MX53_PIN_SD2_DATA3, 0x1D4);
+			mxc_iomux_set_pad(MX53_PIN_ATA_DATA12, 0x1D4);
+			mxc_iomux_set_pad(MX53_PIN_ATA_DATA13, 0x1D4);
+			mxc_iomux_set_pad(MX53_PIN_ATA_DATA14, 0x1D4);
+			mxc_iomux_set_pad(MX53_PIN_ATA_DATA15, 0x1D4);
+			break;
+		default:
+			printf("Warning: you configured more ESDHC controller"
+				"(%d) as supported by the board(2)\n",
+				CONFIG_SYS_FSL_ESDHC_NUM);
+			return status;
+		}
+		status |= fsl_esdhc_initialize(bis, &esdhc_cfg[index]);
+	}
+
+	return status;
+}
+#endif
+
+void weim_smc911x_iomux()
+{
+	unsigned int reg;
+
+	/* ETHERNET_INT as GPIO2_31 */
+	mxc_request_iomux(MX53_PIN_EIM_EB3, IOMUX_CONFIG_ALT1);
+	mxc_gpio_direction(ETHERNET_INT, MXC_GPIO_DIRECTION_IN);
+
+	/* Data bus */
+	mxc_request_iomux(MX53_PIN_EIM_D16, IOMUX_CONFIG_ALT0);
+	mxc_iomux_set_pad(MX53_PIN_EIM_D16, 0xA4);
+
+	mxc_request_iomux(MX53_PIN_EIM_D17, IOMUX_CONFIG_ALT0);
+	mxc_iomux_set_pad(MX53_PIN_EIM_D17, 0xA4);
+
+	mxc_request_iomux(MX53_PIN_EIM_D18, IOMUX_CONFIG_ALT0);
+	mxc_iomux_set_pad(MX53_PIN_EIM_D18, 0xA4);
+
+	mxc_request_iomux(MX53_PIN_EIM_D19, IOMUX_CONFIG_ALT0);
+	mxc_iomux_set_pad(MX53_PIN_EIM_D19, 0xA4);
+
+	mxc_request_iomux(MX53_PIN_EIM_D20, IOMUX_CONFIG_ALT0);
+	mxc_iomux_set_pad(MX53_PIN_EIM_D20, 0xA4);
+
+	mxc_request_iomux(MX53_PIN_EIM_D21, IOMUX_CONFIG_ALT0);
+	mxc_iomux_set_pad(MX53_PIN_EIM_D21, 0xA4);
+
+	mxc_request_iomux(MX53_PIN_EIM_D22, IOMUX_CONFIG_ALT0);
+	mxc_iomux_set_pad(MX53_PIN_EIM_D22, 0xA4);
+
+	mxc_request_iomux(MX53_PIN_EIM_D23, IOMUX_CONFIG_ALT0);
+	mxc_iomux_set_pad(MX53_PIN_EIM_D23, 0xA4);
+
+	mxc_request_iomux(MX53_PIN_EIM_D24, IOMUX_CONFIG_ALT0);
+	mxc_iomux_set_pad(MX53_PIN_EIM_D24, 0xA4);
+
+	mxc_request_iomux(MX53_PIN_EIM_D25, IOMUX_CONFIG_ALT0);
+	mxc_iomux_set_pad(MX53_PIN_EIM_D25, 0xA4);
+
+	mxc_request_iomux(MX53_PIN_EIM_D26, IOMUX_CONFIG_ALT0);
+	mxc_iomux_set_pad(MX53_PIN_EIM_D26, 0xA4);
+
+	mxc_request_iomux(MX53_PIN_EIM_D27, IOMUX_CONFIG_ALT0);
+	mxc_iomux_set_pad(MX53_PIN_EIM_D27, 0xA4);
+
+	mxc_request_iomux(MX53_PIN_EIM_D28, IOMUX_CONFIG_ALT0);
+	mxc_iomux_set_pad(MX53_PIN_EIM_D28, 0xA4);
+
+	mxc_request_iomux(MX53_PIN_EIM_D29, IOMUX_CONFIG_ALT0);
+	mxc_iomux_set_pad(MX53_PIN_EIM_D29, 0xA4);
+
+	mxc_request_iomux(MX53_PIN_EIM_D30, IOMUX_CONFIG_ALT0);
+	mxc_iomux_set_pad(MX53_PIN_EIM_D30, 0xA4);
+
+	mxc_request_iomux(MX53_PIN_EIM_D31, IOMUX_CONFIG_ALT0);
+	mxc_iomux_set_pad(MX53_PIN_EIM_D31, 0xA4);
+
+	/* Address lines */
+	mxc_request_iomux(MX53_PIN_EIM_DA0, IOMUX_CONFIG_ALT0);
+	mxc_iomux_set_pad(MX53_PIN_EIM_DA0, 0xA4);
+
+	mxc_request_iomux(MX53_PIN_EIM_DA1, IOMUX_CONFIG_ALT0);
+	mxc_iomux_set_pad(MX53_PIN_EIM_DA1, 0xA4);
+
+	mxc_request_iomux(MX53_PIN_EIM_DA2, IOMUX_CONFIG_ALT0);
+	mxc_iomux_set_pad(MX53_PIN_EIM_DA2, 0xA4);
+
+	mxc_request_iomux(MX53_PIN_EIM_DA3, IOMUX_CONFIG_ALT0);
+	mxc_iomux_set_pad(MX53_PIN_EIM_DA3, 0xA4);
+
+	mxc_request_iomux(MX53_PIN_EIM_DA4, IOMUX_CONFIG_ALT0);
+	mxc_iomux_set_pad(MX53_PIN_EIM_DA4, 0xA4);
+
+	mxc_request_iomux(MX53_PIN_EIM_DA5, IOMUX_CONFIG_ALT0);
+	mxc_iomux_set_pad(MX53_PIN_EIM_DA5, 0xA4);
+
+	mxc_request_iomux(MX53_PIN_EIM_DA6, IOMUX_CONFIG_ALT0);
+	mxc_iomux_set_pad(MX53_PIN_EIM_DA6, 0xA4);
+
+	/* other EIM signals for ethernet */
+	mxc_request_iomux(MX53_PIN_EIM_OE, IOMUX_CONFIG_ALT0);
+	mxc_request_iomux(MX53_PIN_EIM_RW, IOMUX_CONFIG_ALT0);
+	mxc_request_iomux(MX53_PIN_EIM_CS1, IOMUX_CONFIG_ALT0);
+}
+
+void weim_cs1_settings()
+{
+	struct weim *weim_regs = (struct weim *)WEIM_BASE_ADDR;
+
+	writel(MX53ARD_CS1GCR1, &weim_regs->cs1gcr1);
+	writel(0x0, &weim_regs->cs1gcr2);
+	writel(MX53ARD_CS1RCR1, &weim_regs->cs1rcr1);
+	writel(MX53ARD_CS1RCR2, &weim_regs->cs1rcr2);
+	writel(MX53ARD_CS1WCR1, &weim_regs->cs1wcr1);
+	writel(0x0, &weim_regs->cs1wcr2);
+	writel(0x0, &weim_regs->wcr);
+
+	set_chipselect_size(CS0_64M_CS1_64M);
+}
+
+int board_early_init_f(void)
+{
+	setup_iomux_uart();
+	return 0;
+}
+
+int board_init(void)
+{
+	gd->bd->bi_arch_number = MACH_TYPE_MX53_ARD;
+	/* address of boot parameters */
+	gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100;
+
+	return 0;
+}
+
+int board_eth_init(bd_t *bis)
+{
+	int rc = 0;
+
+	weim_smc911x_iomux();
+	weim_cs1_settings();
+
+#ifdef CONFIG_SMC911X
+	rc = smc911x_initialize(0, CONFIG_SMC911X_BASE);
+#endif
+	return rc;
+}
+
+int checkboard(void)
+{
+	puts("Board: MX53ARD\n");
+
+	return 0;
+}
diff --git a/boards.cfg b/boards.cfg
index 9339981..a616f29 100644
--- a/boards.cfg
+++ b/boards.cfg
@@ -124,6 +124,7 @@ dkb			     arm         arm926ejs   -                   Marvell        pantheon
 ca9x4_ct_vxp                 arm         armv7       vexpress            armltd
 efikamx                      arm         armv7       efikamx             -              mx5
 mx51evk                      arm         armv7       mx51evk             freescale      mx5		mx51evk:IMX_CONFIG=board/freescale/mx51evk/imximage.cfg
+mx53ard                      arm         armv7       mx53ard             freescale      mx5		mx53ard:IMX_CONFIG=board/freescale/mx53ard/imximage_dd3.cfg
 mx53evk                      arm         armv7       mx53evk             freescale      mx5		mx53evk:IMX_CONFIG=board/freescale/mx53evk/imximage.cfg
 mx53loco                     arm         armv7       mx53loco            freescale      mx5		mx53loco:IMX_CONFIG=board/freescale/mx53loco/imximage.cfg
 mx53smd                      arm         armv7       mx53smd             freescale      mx5		mx53smd:IMX_CONFIG=board/freescale/mx53smd/imximage.cfg
diff --git a/include/configs/mx53ard.h b/include/configs/mx53ard.h
new file mode 100644
index 0000000..c0347e1
--- /dev/null
+++ b/include/configs/mx53ard.h
@@ -0,0 +1,198 @@
+/*
+ * Copyright (C) 2011 Freescale Semiconductor, Inc.
+ *
+ * Configuration settings for the MX53ARD Freescale board.
+ *
+ * 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_MX53
+
+#define CONFIG_SYS_MX5_HCLK	24000000
+#define CONFIG_SYS_MX5_CLK32		32768
+#define CONFIG_DISPLAY_CPUINFO
+#define CONFIG_DISPLAY_BOARDINFO
+
+#define CONFIG_L2_OFF
+
+#include <asm/arch/imx-regs.h>
+
+#define CONFIG_CMDLINE_TAG			/* enable passing of ATAGs */
+#define CONFIG_REVISION_TAG
+#define CONFIG_SETUP_MEMORY_TAGS
+#define CONFIG_INITRD_TAG
+
+/* Size of malloc() pool */
+#define CONFIG_SYS_MALLOC_LEN		(CONFIG_ENV_SIZE + 2 * 1024 * 1024)
+
+#define CONFIG_BOARD_EARLY_INIT_F
+#define CONFIG_MXC_GPIO
+
+#define CONFIG_MXC_UART
+#define CONFIG_SYS_MX53_UART1
+
+/* I2C Configs */
+#define CONFIG_CMD_I2C
+#define CONFIG_HARD_I2C
+#define CONFIG_I2C_MXC
+#define CONFIG_SYS_I2C_MX53_PORT2
+#define CONFIG_SYS_I2C_SPEED            100000
+#define CONFIG_SYS_I2C_SLAVE            0xfe
+
+/* MMC Configs */
+#define CONFIG_FSL_ESDHC
+#define CONFIG_SYS_FSL_ESDHC_ADDR	0
+#define CONFIG_SYS_FSL_ESDHC_NUM	2
+
+#define CONFIG_MMC
+#define CONFIG_CMD_MMC
+#define CONFIG_GENERIC_MMC
+#define CONFIG_CMD_FAT
+#define CONFIG_DOS_PARTITION
+
+/* Eth Configs */
+#define CONFIG_HAS_ETH1
+#define CONFIG_NET_MULTI
+#define CONFIG_MII
+#define CONFIG_MII_GASKET
+#define CONFIG_DISCOVER_PHY
+
+#define CONFIG_CMD_PING
+#define CONFIG_CMD_DHCP
+#define CONFIG_CMD_MII
+#define CONFIG_CMD_NET
+
+/* allow to overwrite serial and ethaddr */
+#define CONFIG_ENV_OVERWRITE
+#define CONFIG_CONS_INDEX		1
+#define CONFIG_BAUDRATE			115200
+#define CONFIG_SYS_BAUDRATE_TABLE	{9600, 19200, 38400, 57600, 115200}
+
+/* Command definition */
+#include <config_cmd_default.h>
+
+#undef CONFIG_CMD_IMLS
+
+#define CONFIG_BOOTDELAY	3
+
+#define CONFIG_PRIME	"smc911x"
+
+/*Support LAN9217*/
+#define CONFIG_SMC911X
+#define CONFIG_SMC911X_16_BIT
+#define CONFIG_SMC911X_BASE CS1_BASE_ADDR
+
+#define CONFIG_LOADADDR		0x70800000	/* loadaddr env var */
+#define CONFIG_SYS_TEXT_BASE    0x77800000
+
+#define CONFIG_EXTRA_ENV_SETTINGS \
+	"script=boot.scr\0" \
+	"uimage=uImage\0" \
+	"mmcdev=0\0" \
+	"mmcpart=2\0" \
+	"mmcroot=/dev/mmcblk0p3 rw\0" \
+	"mmcrootfstype=ext3 rootwait\0" \
+	"mmcargs=setenv bootargs console=ttymxc0,${baudrate} " \
+		"root=${mmcroot} " \
+		"rootfstype=${mmcrootfstype}\0" \
+	"loadbootscript=" \
+		"fatload mmc ${mmcdev}:${mmcpart} ${loadaddr} ${script};\0" \
+	"bootscript=echo Running bootscript from mmc ...; " \
+		"source\0" \
+	"loaduimage=fatload mmc ${mmcdev}:${mmcpart} ${loadaddr} ${uimage}\0" \
+	"mmcboot=echo Booting from mmc ...; " \
+		"run mmcargs; " \
+		"bootm\0" \
+	"netargs=setenv bootargs console=ttymxc0,${baudrate} " \
+		"root=/dev/nfs " \
+		"ip=dhcp nfsroot=${serverip}:${nfsroot},v3,tcp\0" \
+	"netboot=echo Booting from net ...; " \
+		"run netargs; " \
+		"dhcp ${uimage}; bootm\0" \
+
+#define CONFIG_BOOTCOMMAND \
+	"if mmc rescan ${mmcdev}; then " \
+		"if run loadbootscript; then " \
+			"run bootscript; " \
+		"else " \
+			"if run loaduimage; then " \
+				"run mmcboot; " \
+			"else run netboot; " \
+			"fi; " \
+		"fi; " \
+	"else run netboot; fi"
+#define CONFIG_ARP_TIMEOUT	200UL
+
+/* Miscellaneous configurable options */
+#define CONFIG_SYS_LONGHELP		/* undef to save memory */
+#define CONFIG_SYS_HUSH_PARSER		/* use "hush" command parser */
+#define CONFIG_SYS_PROMPT_HUSH_PS2	"> "
+#define CONFIG_SYS_PROMPT		"MX53ARD U-Boot > "
+#define CONFIG_AUTO_COMPLETE
+#define CONFIG_SYS_CBSIZE		256	/* Console I/O Buffer Size */
+
+/* Print Buffer Size */
+#define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE + sizeof(CONFIG_SYS_PROMPT) + 16)
+#define CONFIG_SYS_MAXARGS	16	/* max number of command args */
+#define CONFIG_SYS_BARGSIZE CONFIG_SYS_CBSIZE /* Boot Argument Buffer Size */
+
+#define CONFIG_SYS_MEMTEST_START       0x70000000
+#define CONFIG_SYS_MEMTEST_END         0x70010000
+
+#define CONFIG_SYS_LOAD_ADDR		CONFIG_LOADADDR
+
+#define CONFIG_SYS_HZ		1000
+#define CONFIG_CMDLINE_EDITING
+
+/* Stack sizes */
+#define CONFIG_STACKSIZE	(128 * 1024)	/* regular stack */
+
+/* Physical Memory Map */
+#define CONFIG_NR_DRAM_BANKS	2
+#define PHYS_SDRAM_1		CSD0_BASE_ADDR
+#define PHYS_SDRAM_1_SIZE	(512 * 1024 * 1024)
+#define PHYS_SDRAM_2		CSD1_BASE_ADDR
+#define PHYS_SDRAM_2_SIZE	(512 * 1024 * 1024)
+#define PHYS_SDRAM_SIZE         (PHYS_SDRAM_1_SIZE + PHYS_SDRAM_2_SIZE)
+
+#define CONFIG_SYS_SDRAM_BASE		(PHYS_SDRAM_1)
+#define CONFIG_SYS_INIT_RAM_ADDR	(IRAM_BASE_ADDR)
+#define CONFIG_SYS_INIT_RAM_SIZE	(IRAM_SIZE)
+
+#define CONFIG_SYS_INIT_SP_OFFSET \
+	(CONFIG_SYS_INIT_RAM_SIZE - GENERATED_GBL_DATA_SIZE)
+#define CONFIG_SYS_INIT_SP_ADDR \
+	(CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_INIT_SP_OFFSET)
+
+/* FLASH and environment organization */
+#define CONFIG_SYS_NO_FLASH
+
+#define CONFIG_ENV_OFFSET      (6 * 64 * 1024)
+#define CONFIG_ENV_SIZE        (8 * 1024)
+#define CONFIG_ENV_IS_IN_MMC
+#define CONFIG_SYS_MMC_ENV_DEV	0
+
+#define CONFIG_OF_LIBFDT
+
+#define MX53ARD_CS1GCR1		(CSEN(1) | CREP(0) | DSZ(2))
+#define MX53ARD_CS1RCR1		(RCSN(2) | OEN (1) | RWSC(22))
+#define MX53ARD_CS1RCR2		RBEN(2)
+#define MX53ARD_CS1WCR1		(WCSN(2) | WEN(2) | WBEN(2) | WWSC(22))
+
+#endif				/* __CONFIG_H */
-- 
1.6.0.4

^ permalink raw reply related	[flat|nested] 5+ messages in thread

* [U-Boot] [PATCH v4 1/4] MX5: Make the weim structure complete
  2011-05-19 19:27 [U-Boot] [PATCH v4 1/4] MX5: Make the weim structure complete Fabio Estevam
  2011-05-19 19:27 ` [U-Boot] [PATCH v4 2/4] MX5: Add iomux structure Fabio Estevam
@ 2011-05-20  8:37 ` Stefano Babic
  1 sibling, 0 replies; 5+ messages in thread
From: Stefano Babic @ 2011-05-20  8:37 UTC (permalink / raw)
  To: u-boot

On 05/19/2011 09:27 PM, Fabio Estevam wrote:
> Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
> ---

Hi Fabio,


> + * WEIM CSnGCR1
> + */
> +#define CSEN(x)	(x)
> +#define SWR(x)		((x) << 1)
> +#define SRD(x)		((x) << 2)
> +#define MUM(x)		((x) << 3)
> +#define WFL(x)		((x) << 4)

Probably the macros for single bits can take confusion. Why do we need a
parameter ?
I am expecting that CSEN(1) sets the bit and CSEN(0) resets the bit, and
this is obviously not the case, because we use them in or-wise or to
mask some bits. For single bits there is no test about the parameter and
I could use CSEN(7), and that is completely wrong.

Is it not better to remove the parameter for single bits ? If we define
for example

	SRD	(1 << 2)

it is always clear what we want to do and there is no way to generate
confusion. And no need to check the parameter.

Best regards,
Stefano Babic

-- 
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Phone: +49-8142-66989-0 Fax: +49-8142-66989-80  Email: office@denx.de
=====================================================================

^ permalink raw reply	[flat|nested] 5+ messages in thread

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2011-05-19 19:27 [U-Boot] [PATCH v4 1/4] MX5: Make the weim structure complete Fabio Estevam
2011-05-19 19:27 ` [U-Boot] [PATCH v4 2/4] MX5: Add iomux structure Fabio Estevam
2011-05-19 19:27   ` [U-Boot] [PATCH v4 3/4] MX5: Introduce a function for setting the chip select size Fabio Estevam
2011-05-19 19:27     ` [U-Boot] [PATCH v4 4/4] MX53: Add initial support for MX53ARD Fabio Estevam
2011-05-20  8:37 ` [U-Boot] [PATCH v4 1/4] MX5: Make the weim structure complete Stefano Babic

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