[U-Boot] [PATCH v2 3/4] arm, at91: add Siemens board taurus and axm

Heiko Schocher
2013-11-04T06:40:46Z

enable support for the siemens AT91SAM9G20 based boards taurus
and axm.

Signed-off-by: Roger Meier <r.meier@siemens.com>
Reviewed-by: Heiko Schocher <hs@denx.de>
Cc: Andreas Bie?mann <andreas.devel@googlemail.com>
Cc: Bo Shen <voice.shen@atmel.com>

---
- changes for v2:
- add comments from bo shen
- use gpio api
- remove unneccessary comment
- use at91_wait_for_reset()
- remove unneccessary code in board file
- Coding Style cleanup (tabs and unneccessary 1 after config define
removed)
- add commit message
- add comments from Andreas Bie?mann <andreas.devel@googlemail.com>:
- detect sdram size on startup without read dram setting
- get rid of MACH_TYPE definition in config file
---
board/siemens/taurus/Makefile | 38 +++++++++
board/siemens/taurus/taurus.c | 186 ++++++++++++++++++++++++++++++++++++++++++
boards.cfg | 2 +
include/configs/taurus.h | 159 ++++++++++++++++++++++++++++++++++++
4 files changed, 385 insertions(+)
create mode 100644 board/siemens/taurus/Makefile
create mode 100644 board/siemens/taurus/taurus.c
create mode 100644 include/configs/taurus.h

diff --git a/board/siemens/taurus/Makefile b/board/siemens/taurus/Makefile
new file mode 100644
index 0000000..9c288b7
--- /dev/null
+++ b/board/siemens/taurus/Makefile
@@ -0,0 +1,38 @@
+#
+# Makefile for Siemens TAURUS (AT91SAM9G20) based board
+# (C) Copyright 2013 Siemens AG
+#
+# Based on:
+# U-Boot file: board/atmel/at91sam9260ek/Makefile
+#
+# (C) Copyright 2003-2008
+# Wolfgang Denk, DENX Software Engineering, wd at denx.de.
+#
+# (C) Copyright 2008
+# Stelian Pop <stelian@popies.net>
+# Lead Tech Design <www.leadtechdesign.com>
+#
+# SPDX-License-Identifier: GPL-2.0+
+#
+
+include $(TOPDIR)/config.mk
+
+LIB = $(obj)lib$(BOARD).o
+
+COBJS-y += taurus.o
+
+SRCS := $(SOBJS:.o=.S) $(COBJS-y:.o=.c)
+OBJS := $(addprefix $(obj),$(COBJS-y))
+SOBJS := $(addprefix $(obj),$(SOBJS))
+
+$(LIB): $(obj).depend $(OBJS) $(SOBJS)
+ $(call cmd_link_o_target, $(OBJS) $(SOBJS))
+
+#########################################################################
+
+# defines $(obj).depend target
+include $(SRCTREE)/rules.mk
+
+sinclude $(obj).depend
+
+#########################################################################
diff --git a/board/siemens/taurus/taurus.c b/board/siemens/taurus/taurus.c
new file mode 100644
index 0000000..66d55d6
--- /dev/null
+++ b/board/siemens/taurus/taurus.c
@@ -0,0 +1,186 @@
+/*
+ * Board functions for Siemens TAURUS (AT91SAM9G20) based boards
+ * (C) Copyright Siemens AG
+ *
+ * Based on:
+ * U-Boot file: board/atmel/at91sam9260ek/at91sam9260ek.c
+ *
+ * (C) Copyright 2007-2008
+ * Stelian Pop <stelian@popies.net>
+ * Lead Tech Design <www.leadtechdesign.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <asm/arch/at91sam9260_matrix.h>
+#include <asm/arch/at91sam9_smc.h>
+#include <asm/arch/at91_common.h>
+#include <asm/arch/at91_pmc.h>
+#include <asm/arch/at91_rstc.h>
+#include <asm/arch/gpio.h>
+#include <asm/arch/at91sam9_sdramc.h>
+#include <atmel_mci.h>
+
+#if defined(CONFIG_RESET_PHY_R) && defined(CONFIG_MACB)
+# include <net.h>
+#endif
+#include <netdev.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#ifdef CONFIG_CMD_NAND
+static void taurus_nand_hw_init(void)
+{
+ struct at91_smc *smc = (struct at91_smc *)ATMEL_BASE_SMC;
+ struct at91_matrix *matrix = (struct at91_matrix *)ATMEL_BASE_MATRIX;
+ unsigned long csa;
+
+ /* Assign CS3 to NAND/SmartMedia Interface */
+ csa = readl(&matrix->ebicsa);
+ csa |= AT91_MATRIX_CS3A_SMC_SMARTMEDIA;
+ writel(csa, &matrix->ebicsa);
+
+ /* Configure SMC CS3 for NAND/SmartMedia */
+ writel(AT91_SMC_SETUP_NWE(2) | AT91_SMC_SETUP_NCS_WR(0) |
+ AT91_SMC_SETUP_NRD(2) | AT91_SMC_SETUP_NCS_RD(0),
+ &smc->cs[3].setup);
+ writel(AT91_SMC_PULSE_NWE(4) | AT91_SMC_PULSE_NCS_WR(3) |
+ AT91_SMC_PULSE_NRD(4) | AT91_SMC_PULSE_NCS_RD(3),
+ &smc->cs[3].pulse);
+ writel(AT91_SMC_CYCLE_NWE(7) | AT91_SMC_CYCLE_NRD(7),
+ &smc->cs[3].cycle);
+ writel(AT91_SMC_MODE_RM_NRD | AT91_SMC_MODE_WM_NWE |
+ AT91_SMC_MODE_EXNW_DISABLE |
+ AT91_SMC_MODE_DBW_8 |
+ AT91_SMC_MODE_TDF_CYCLE(3),
+ &smc->cs[3].mode);
+
+ /* Configure RDY/BSY */
+ at91_set_gpio_input(CONFIG_SYS_NAND_READY_PIN, 1);
+
+ /* Enable NandFlash */
+ at91_set_gpio_output(CONFIG_SYS_NAND_ENABLE_PIN, 1);
+}
+#endif
+
+#ifdef CONFIG_MACB
+static void taurus_macb_hw_init(void)
+{
+ struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC;
+ struct at91_rstc *rstc = (struct at91_rstc *)ATMEL_BASE_RSTC;
+ unsigned long erstl;
+
+ /* Enable EMAC clock */
+ writel(1 << ATMEL_ID_EMAC0, &pmc->pcer);
+
+ /*
+ * Disable pull-up on:
+ * RXDV (PA17) => PHY normal mode (not Test mode)
+ * ERX0 (PA14) => PHY ADDR0
+ * ERX1 (PA15) => PHY ADDR1
+ * ERX2 (PA25) => PHY ADDR2
+ * ERX3 (PA26) => PHY ADDR3
+ * ECRS (PA28) => PHY ADDR4 => PHYADDR = 0x0
+ *
+ * PHY has internal pull-down
+ */
+ at91_set_pio_pullup(AT91_PIO_PORTA, 14, 0);
+ at91_set_pio_pullup(AT91_PIO_PORTA, 15, 0);
+ at91_set_pio_pullup(AT91_PIO_PORTA, 17, 0);
+ at91_set_pio_pullup(AT91_PIO_PORTA, 25, 0);
+ at91_set_pio_pullup(AT91_PIO_PORTA, 26, 0);
+ at91_set_pio_pullup(AT91_PIO_PORTA, 28, 0);
+
+ /*
+ * Need to reset PHY ?-> 200us reset
+ * Bug within Atmel CPU (undefined initial states on io-lines)!
+ * Startup Ethernet Switch delayed so that hardstrap(Switch Config)
+ * has defined state after cold start (do not break daisy chain!).
+ */
+ if ((readl(&rstc->sr) & AT91_RSTC_RSTTYP) == AT91_RSTC_RSTTYP_GENERAL)
+ at91_set_gpio_output(AT91_PIN_PA25, 0);
+
+
+ erstl = readl(&rstc->mr) & AT91_RSTC_MR_ERSTL_MASK;
+
+ /* Need to reset PHY -> 500ms reset */
+ writel(AT91_RSTC_KEY | AT91_RSTC_MR_ERSTL(13) |
+ AT91_RSTC_MR_URSTEN, &rstc->mr);
+
+ writel(AT91_RSTC_KEY | AT91_RSTC_CR_EXTRST, &rstc->cr);
+
+ /* Wait for end of reset */
+ at91_wait_for_reset(100);
+
+ /* Restore NRST value */
+ writel(AT91_RSTC_KEY | erstl | AT91_RSTC_MR_URSTEN, &rstc->mr);
+
+ at91_set_gpio_input(AT91_PIN_PA25, 1); /* ERST tri-state */
+
+ /* Re-enable pull-up */
+ at91_set_pio_pullup(AT91_PIO_PORTA, 14, 1);
+ at91_set_pio_pullup(AT91_PIO_PORTA, 15, 1);
+ at91_set_pio_pullup(AT91_PIO_PORTA, 17, 1);
+ at91_set_pio_pullup(AT91_PIO_PORTA, 25, 1);
+ at91_set_pio_pullup(AT91_PIO_PORTA, 26, 1);
+ at91_set_pio_pullup(AT91_PIO_PORTA, 28, 1);
+
+ /* Initialize EMAC=MACB hardware */
+ at91_macb_hw_init();
+}
+#endif
+
+#ifdef CONFIG_GENERIC_ATMEL_MCI
+int board_mmc_init(bd_t *bd)
+{
+ at91_mci_hw_init();
+
+ return atmel_mci_init((void *)ATMEL_BASE_MCI);
+}
+#endif
+
+int board_early_init_f(void)
+{
+ struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC;
+
+ /* Enable clocks for all PIOs */
+ writel((1 << ATMEL_ID_PIOA) | (1 << ATMEL_ID_PIOB) |
+ (1 << ATMEL_ID_PIOC),
+ &pmc->pcer);
+
+ return 0;
+}
+
+int board_init(void)
+{
+ /* adress of boot parameters */
+ gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
+
+ at91_seriald_hw_init();
+#ifdef CONFIG_CMD_NAND
+ taurus_nand_hw_init();
+#endif
+#ifdef CONFIG_MACB
+ taurus_macb_hw_init();
+#endif
+
+ return 0;
+}
+
+int dram_init(void)
+{
+ gd->ram_size = get_ram_size((void *)CONFIG_SYS_SDRAM_BASE,
+ CONFIG_SYS_SDRAM_SIZE);
+ return 0;
+}
+
+int board_eth_init(bd_t *bis)
+{
+ int rc = 0;
+#ifdef CONFIG_MACB
+ rc = macb_eth_initialize(0, (void *)ATMEL_BASE_EMAC0, 0x00);
+#endif
+ return rc;
+}
diff --git a/boards.cfg b/boards.cfg
index aa2ee64..0fe98d0 100644
--- a/boards.cfg
+++ b/boards.cfg
@@ -139,6 +139,8 @@ Active arm arm926ejs at91 ronetix pm9263
Active arm arm926ejs at91 ronetix pm9g45 pm9g45 pm9g45:AT91SAM9G45 Ilko Iliev <iliev@ronetix.at>
Active arm arm926ejs at91 taskit stamp9g20 portuxg20 stamp9g20:AT91SAM9G20,PORTUXG20 Markus Hubig <mhubig@imko.de>
Active arm arm926ejs at91 taskit stamp9g20 stamp9g20 stamp9g20:AT91SAM9G20 Markus Hubig <mhubig@imko.de>
+Active arm arm926ejs at91 siemens taurus axm taurus:AT91SAM9G20,MACH_TYPE=2068,BOARD_AXM Heiko Schocher <hs@denx.de>
+Active arm arm926ejs at91 siemens taurus taurus taurus:AT91SAM9G20,MACH_TYPE=2067,BOARD_TAURUS Heiko Schocher <hs@denx.de>
Active arm arm926ejs davinci ait cam_enc_4xx cam_enc_4xx cam_enc_4xx Heiko Schocher <hs@denx.de>
Active arm arm926ejs davinci Barix ipam390 ipam390 - Heiko Schocher <hs@denx.de>
Active arm arm926ejs davinci davinci da8xxevm da830evm - Nick Thompson <nick.thompson@gefanuc.com>
diff --git a/include/configs/taurus.h b/include/configs/taurus.h
new file mode 100644
index 0000000..26255bb
--- /dev/null
+++ b/include/configs/taurus.h
@@ -0,0 +1,159 @@
+/*
+ * Common board functions for Siemens TAURUS (AT91SAM9G20) based boards
+ * (C) Copyright 2013 Siemens AG
+ *
+ * Based on:
+ * U-Boot file: include/configs/at91sam9260ek.h
+ *
+ * (C) Copyright 2007-2008
+ * Stelian Pop <stelian@popies.net>
+ * Lead Tech Design <www.leadtechdesign.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#ifndef __CONFIG_H
+#define __CONFIG_H
+
+/*
+ * SoC must be defined first, before hardware.h is included.
+ * In this case SoC is defined in boards.cfg.
+ */
+#include <asm/hardware.h>
+
+#define MACH_TYPE_TAURUS 2067
+#define MACH_TYPE_AXM 2068
+
+/*
+ * Warning: changing CONFIG_SYS_TEXT_BASE requires
+ * adapting the initial boot program.
+ * Since the linker has to swallow that define, we must use a pure
+ * hex number here!
+ */
+
+
+#define CONFIG_SYS_TEXT_BASE 0x23f00000
+
+/* ARM asynchronous clock */
+#define CONFIG_SYS_AT91_SLOW_CLOCK 32768 /* slow clock xtal */
+#define CONFIG_SYS_AT91_MAIN_CLOCK 18432000 /* main clock xtal */
+#define CONFIG_SYS_HZ 1000
+
+/* Misc CPU related */
+#define CONFIG_ARCH_CPU_INIT
+#define CONFIG_CMDLINE_TAG /* enable passing of ATAGs */
+#define CONFIG_SETUP_MEMORY_TAGS
+#define CONFIG_INITRD_TAG
+#define CONFIG_SKIP_LOWLEVEL_INIT
+#define CONFIG_BOARD_EARLY_INIT_F
+#define CONFIG_DISPLAY_CPUINFO
+
+#define CONFIG_CMD_BOOTZ
+#define CONFIG_OF_LIBFDT
+
+/* general purpose I/O */
+#define CONFIG_ATMEL_LEGACY /* required until (g)pio is fixed */
+#define CONFIG_AT91_GPIO
+#define CONFIG_AT91_GPIO_PULLUP 1 /* keep pullups on peripheral pins */
+
+/* serial console */
+#define CONFIG_ATMEL_USART
+#define CONFIG_USART_BASE ATMEL_BASE_DBGU
+#define CONFIG_USART_ID ATMEL_ID_SYS
+#define CONFIG_BAUDRATE 115200
+
+#define CONFIG_BOOTDELAY 3
+
+/*
+ * Command line configuration.
+ */
+#include <config_cmd_default.h>
+#undef CONFIG_CMD_BDI
+#undef CONFIG_CMD_FPGA
+#undef CONFIG_CMD_IMI
+#undef CONFIG_CMD_IMLS
+#undef CONFIG_CMD_LOADS
+#undef CONFIG_CMD_SOURCE
+
+#define CONFIG_CMD_PING
+#define CONFIG_CMD_DHCP
+#define CONFIG_CMD_NAND
+
+/*
+ * SDRAM: 1 bank, min 32, max 128 MB
+ * Initialized before u-boot gets started.
+ */
+#define CONFIG_NR_DRAM_BANKS 1
+#define CONFIG_SYS_SDRAM_BASE ATMEL_BASE_CS1
+#define CONFIG_SYS_SDRAM_SIZE (128 * 1024 * 1024)
+
+/*
+ * Initial stack pointer: 4k - GENERATED_GBL_DATA_SIZE in internal SRAM,
+ * leaving the correct space for initial global data structure above
+ * that address while providing maximum stack area below.
+ */
+# define CONFIG_SYS_INIT_SP_ADDR \
+ (ATMEL_BASE_SRAM1 + 0x1000 - GENERATED_GBL_DATA_SIZE)
+
+/* NAND flash */
+#ifdef CONFIG_CMD_NAND
+#define CONFIG_NAND_ATMEL
+#define CONFIG_SYS_MAX_NAND_DEVICE 1
+#define CONFIG_SYS_NAND_BASE ATMEL_BASE_CS3
+#define CONFIG_SYS_NAND_DBW_8
+#define CONFIG_SYS_NAND_MASK_ALE (1 << 21)
+#define CONFIG_SYS_NAND_MASK_CLE (1 << 22)
+#define CONFIG_SYS_NAND_ENABLE_PIN AT91_PIN_PC14
+#define CONFIG_SYS_NAND_READY_PIN AT91_PIN_PC13
+#endif
+
+/* NOR flash - no real flash on this board */
+#define CONFIG_SYS_NO_FLASH 1
+
+/* Ethernet */
+#define CONFIG_MACB
+#define CONFIG_RMII
+
+/* USB */
+#if defined(CONFIG_BOARD_TAURUS)
+#define CONFIG_USB_ATMEL
+#define CONFIG_USB_OHCI_NEW
+#define CONFIG_SYS_USB_OHCI_CPU_INIT
+#define CONFIG_SYS_USB_OHCI_REGS_BASE 0x00500000
+#define CONFIG_SYS_USB_OHCI_SLOT_NAME "at91sam9260"
+#define CONFIG_SYS_USB_OHCI_MAX_ROOT_PORTS 2
+#define CONFIG_USB_STORAGE
+#endif
+
+/* load address */
+#define CONFIG_SYS_LOAD_ADDR 0x22000000
+
+/* bootstrap in spi flash , u-boot + env + linux in nandflash */
+#define CONFIG_ENV_IS_IN_NAND
+#define CONFIG_ENV_OFFSET 0x100000
+#define CONFIG_ENV_OFFSET_REDUND 0x180000
+#define CONFIG_ENV_SIZE 0x20000 /* 1 sector = 128 kB */
+#define CONFIG_BOOTCOMMAND "nand read 0x22000000 0x200000 0x300000; bootm"
+#define CONFIG_BOOTARGS \
+ "console=ttyS0,115200 earlyprintk " \
+ "mtdparts=atmel_nand:256k(bootstrap)ro,512k(uboot)ro," \
+ "256k(env),256k(env_redundant),256k(spare)," \
+ "512k(dtb),6M(kernel)ro,-(rootfs) " \
+ "root=/dev/mtdblock7 rw rootfstype=jffs2"
+
+#define CONFIG_SYS_PROMPT "U-Boot> "
+#define CONFIG_SYS_CBSIZE 256
+#define CONFIG_SYS_MAXARGS 16
+#define CONFIG_SYS_PBSIZE \
+ (CONFIG_SYS_CBSIZE + sizeof(CONFIG_SYS_PROMPT) + 16)
+#define CONFIG_SYS_LONGHELP
+#define CONFIG_CMDLINE_EDITING
+#define CONFIG_AUTO_COMPLETE
+
+/*
+ * Size of malloc() pool
+ */
+#define CONFIG_SYS_MALLOC_LEN \
+ ROUND(3 * CONFIG_ENV_SIZE + 128*1024, 0x1000)
+
+#endif
--
1.8.3.1