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wandboard: Add boot selection support 

Adds support for 'bmode' command which let user to choose where to
boot from; this allows U-Boot to load system from another storage
without messing with jumpers.

Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
This commit is contained in:
Otavio Salvador 2013-04-19 03:42:03 +00:00 committed by Stefano Babic
parent 5ed15738d9
commit eaffaa2d25
2 changed files with 21 additions and 0 deletions
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19
board/wandboard/wandboard.c
View File

@ -16,6 +16,7 @@
#include <asm/arch/sys_proto.h> #include <asm/arch/sys_proto.h>
#include <asm/gpio.h> #include <asm/gpio.h>
#include <asm/imx-common/iomux-v3.h> #include <asm/imx-common/iomux-v3.h>
#include <asm/imx-common/boot_mode.h>
#include <asm/io.h> #include <asm/io.h>
#include <asm/sizes.h> #include <asm/sizes.h>
#include <common.h> #include <common.h>
@ -225,6 +226,24 @@ int board_early_init_f(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, 0x30, 0x00, 0x00)},
{"mmc1", MAKE_CFGVAL(0x40, 0x20, 0x00, 0x00)},
{NULL, 0},
};
#endif
int board_late_init(void)
{
#ifdef CONFIG_CMD_BMODE
add_board_boot_modes(board_boot_modes);
#endif
return 0;
}
int board_init(void) int board_init(void)
{ {
/* address of boot parameters */ /* address of boot parameters */

2
include/configs/wandboard.h
View File

@ -32,6 +32,7 @@
#define CONFIG_SYS_MALLOC_LEN (3 * SZ_1M) #define CONFIG_SYS_MALLOC_LEN (3 * SZ_1M)
#define CONFIG_BOARD_EARLY_INIT_F #define CONFIG_BOARD_EARLY_INIT_F
#define CONFIG_BOARD_LATE_INIT
#define CONFIG_MXC_GPIO #define CONFIG_MXC_GPIO
#define CONFIG_MXC_UART #define CONFIG_MXC_UART
@ -47,6 +48,7 @@
#undef CONFIG_CMD_IMLS #undef CONFIG_CMD_IMLS
#define CONFIG_CMD_BMODE
#define CONFIG_CMD_SETEXPR #define CONFIG_CMD_SETEXPR
#define CONFIG_BOOTDELAY 5 #define CONFIG_BOOTDELAY 5