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mx53evk: add boot_mode support

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This allows a watchdog reset to start the ROM's
usb/serial downloader, or boot from an sdcard.

Signed-off-by: Troy Kisky <troy.kisky@boundarydevices.com>
This commit is contained in:
Troy Kisky 2012-08-15 10:31:22 +00:00 committed by Albert ARIBAUD
parent bb05b40b06
commit 0aff384b14
2 changed files with 16 additions and 0 deletions
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13
board/freescale/mx53evk/mx53evk.c
View File

@ -28,6 +28,7 @@
#include <asm/arch/crm_regs.h> #include <asm/arch/crm_regs.h>
#include <asm/arch/iomux.h> #include <asm/arch/iomux.h>
#include <asm/errno.h> #include <asm/errno.h>
#include <asm/imx-common/boot_mode.h>
#include <netdev.h> #include <netdev.h>
#include <i2c.h> #include <i2c.h>
#include <mmc.h> #include <mmc.h>
@ -367,11 +368,23 @@ int board_init(void)
return 0; return 0;
} }
#ifdef CONFIG_CMD_BMODE
static const struct boot_mode board_boot_modes[] = {
/* 4 bit bus width */
{"mmc0", MAKE_CFGVAL(0x40, 0x20, 0x00, 0x12)},
{"mmc1", MAKE_CFGVAL(0x40, 0x20, 0x08, 0x12)},
{NULL, 0},
};
#endif
int board_late_init(void) int board_late_init(void)
{ {
setup_i2c(1); setup_i2c(1);
power_init(); power_init();
#ifdef CONFIG_CMD_BMODE
add_board_boot_modes(board_boot_modes);
#endif
return 0; return 0;
} }

3
include/configs/mx53evk.h
View File

@ -88,6 +88,9 @@
#define CONFIG_CMD_NET #define CONFIG_CMD_NET
#define CONFIG_CMD_DATE #define CONFIG_CMD_DATE
/* Miscellaneous commands */
#define CONFIG_CMD_BMODE
/* allow to overwrite serial and ethaddr */ /* allow to overwrite serial and ethaddr */
#define CONFIG_ENV_OVERWRITE #define CONFIG_ENV_OVERWRITE
#define CONFIG_CONS_INDEX 1 #define CONFIG_CONS_INDEX 1