> 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.este...@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.va...@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
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