Add initial support for Freescale MX28EVK board.
Tested boot via SD card and by loading a kernel via TFTP through the FEC interface.
Signed-off-by: Fabio Estevam fabio.estevam@freescale.com
1) Do you use the DRAM init data used by DENX boards ?
diff --git a/include/configs/mx28evk.h b/include/configs/mx28evk.h new file mode 100644 index 0000000..40b64bf --- /dev/null +++ b/include/configs/mx28evk.h @@ -0,0 +1,172 @@ +/*
- Copyright (C) 2011 Marek Vasut marek.vasut@gmail.com
- on behalf of DENX Software Engineering GmbH
Please recheck these ;-)
- 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.
- */
+#ifndef __CONFIG_H +#define __CONFIG_H
+#include <asm/arch/regs-base.h>
+/*
- SoC configurations
- */
+#define CONFIG_MX28 /* i.MX28 SoC */ +#define CONFIG_MXS_GPIO /* GPIO control */ +#define CONFIG_SYS_HZ 1000 /* Ticks per second */
+#define CONFIG_MACH_TYPE MACH_TYPE_MX28EVK
+#define CONFIG_SYS_NO_FLASH +#define CONFIG_SYS_ICACHE_OFF +#define CONFIG_SYS_DCACHE_OFF +#define CONFIG_BOARD_EARLY_INIT_F +#define CONFIG_ARCH_CPU_INIT +#define CONFIG_ARCH_MISC_INIT
+/*
- SPL
- */
+#define CONFIG_SPL +#define CONFIG_SPL_NO_CPU_SUPPORT_CODE +#define CONFIG_SPL_START_S_PATH "arch/arm/cpu/arm926ejs/mx28" +#define CONFIG_SPL_LDSCRIPT "arch/arm/cpu/arm926ejs/mx28/u-boot-spl.lds" +#define CONFIG_SPL_LIBCOMMON_SUPPORT +#define CONFIG_SPL_LIBGENERIC_SUPPORT
+/*
- U-Boot Commands
- */
+#include <config_cmd_default.h> +#define CONFIG_DISPLAY_CPUINFO +#define CONFIG_DOS_PARTITION +#define CONFIG_CMD_FAT
+#define CONFIG_CMD_CACHE +#define CONFIG_CMD_DHCP +#define CONFIG_CMD_GPIO +#define CONFIG_CMD_MII +#define CONFIG_CMD_MMC +#define CONFIG_CMD_NET +#define CONFIG_CMD_NFS +#define CONFIG_CMD_PING
+/*
- Memory configurations
- */
+#define CONFIG_NR_DRAM_BANKS 1 /* 1 bank of
DRAM */
+#define PHYS_SDRAM_1 0x40000000 /* Base address
*/
+#define PHYS_SDRAM_1_SIZE 0x40000000 /* Max 1 GB RAM
*/
+#define CONFIG_STACKSIZE (128 * 1024) /* 128 KB stack
*/
+#define CONFIG_SYS_MALLOC_LEN 0x00400000 /* 4 MB for
malloc */
+#define CONFIG_SYS_MEMTEST_START 0x40000000 /* Memtest start
adr */
+#define CONFIG_SYS_MEMTEST_END 0x40400000 /* 4 MB RAM test
*/
+#define CONFIG_SYS_SDRAM_BASE PHYS_SDRAM_1 +/* Point initial SP in SRAM so SPL can use it too. */
+#define CONFIG_SYS_INIT_RAM_ADDR 0x00002000 +#define CONFIG_SYS_INIT_RAM_SIZE (128 * 1024)
+#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)
+/*
- We need to sacrifice first 4 bytes of RAM here to avoid triggering some
- strange BUG in ROM corrupting first 4 bytes of RAM when loading U-Boot
- binary. In case there was more of this mess, 0x100 bytes are skipped.
- */
+#define CONFIG_SYS_TEXT_BASE 0x40000100
+#define CONFIG_ENV_OVERWRITE +/*
- U-Boot general configurations
- */
+#define CONFIG_SYS_LONGHELP +#define CONFIG_SYS_PROMPT "MX28EVK U-Boot > " +#define CONFIG_SYS_CBSIZE 1024 /* Console I/O buffer
size */
+#define CONFIG_SYS_PBSIZE \
- (CONFIG_SYS_CBSIZE + sizeof(CONFIG_SYS_PROMPT) + 16)
/* Print buffer size */+#define CONFIG_SYS_MAXARGS 32 /* Max number of command
args */
+#define CONFIG_SYS_BARGSIZE CONFIG_SYS_CBSIZE
/* Boot argument buffer size */+#define CONFIG_VERSION_VARIABLE /* U-BOOT version */ +#define CONFIG_AUTO_COMPLETE /* Command auto complete
*/
+#define CONFIG_CMDLINE_EDITING /* Command history etc
*/
+#define CONFIG_SYS_HUSH_PARSER +#define CONFIG_SYS_PROMPT_HUSH_PS2 "> "
+/*
- Serial Driver
- */
+#define CONFIG_PL011_SERIAL +#define CONFIG_PL011_CLOCK 24000000 +#define CONFIG_PL01x_PORTS { (void *)MXS_UARTDBG_BASE } +#define CONFIG_CONS_INDEX 0 +#define CONFIG_BAUDRATE 115200 /* Default baud rate */ +#define CONFIG_SYS_BAUDRATE_TABLE { 9600, 19200, 38400, 57600,
115200 }
+/*
- MMC Driver
- */
+#ifdef CONFIG_CMD_MMC +#define CONFIG_MMC +#define CONFIG_ENV_IS_IN_MMC +#define CONFIG_ENV_OFFSET (256 * 1024) +#define CONFIG_ENV_SIZE (16 * 1024) +#define CONFIG_SYS_MMC_ENV_DEV 0 +#define CONFIG_CMD_SAVEENV +#define CONFIG_GENERIC_MMC +#define CONFIG_MXS_MMC +#endif
+/*
- Ethernet on SOC (FEC)
- */
+#ifdef CONFIG_CMD_NET +#define CONFIG_NET_MULTI +#define CONFIG_ETHPRIME "FEC0" +#define CONFIG_FEC_MXC +#define CONFIG_FEC_MXC_MULTI +#define CONFIG_MII +#define CONFIG_DISCOVER_PHY +#define CONFIG_FEC_XCV_TYPE RMII +#define CONFIG_MX28_FEC_MAC_IN_OCOTP +#endif
+/*
- Boot Linux
- */
+#define CONFIG_CMDLINE_TAG +#define CONFIG_SETUP_MEMORY_TAGS +#define CONFIG_BOOTDELAY 3 +#define CONFIG_BOOTFILE "uImage" +#define CONFIG_BOOTCOMMAND "run bootcmd_net" +#define CONFIG_LOADADDR 0x42000000 +#define CONFIG_SYS_LOAD_ADDR CONFIG_LOADADDR
+/*
- Extra Environments
- */
+#define CONFIG_EXTRA_ENV_SETTINGS \
- "console_fsl=console=ttyAM0" \
- "console_mainline=console=ttyAMA0" \
- "netargs=setenv bootargs console=${console_mainline}" \
"root=/dev/nfs " \"ip=dhcp nfsroot=${serverip}:${nfsroot}\0" \- "bootcmd_net=echo Booting from net ...; " \
"run netargs; " \"dhcp ${uimage}; bootm\0" \+#endif /* __CONFIG_H */
Otherwise it seems OK.
M