mx53evk: add boot_mode support

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>

diff --git a/board/freescale/mx53evk/mx53evk.c b/board/freescale/mx53evk/mx53evk.c
index 8a6e31d9b100036b18107deaf76fdba14ce73537..7f509383071f2357fbcefe70294c2a80be9b9d8e 100644 (file)
--- a/board/freescale/mx53evk/mx53evk.c
+++ b/board/freescale/mx53evk/mx53evk.c
@@ -28,6 +28,7 @@
 #include <asm/arch/crm_regs.h>
 #include <asm/arch/iomux.h>
 #include <asm/errno.h>
+#include <asm/imx-common/boot_mode.h>
 #include <netdev.h>
 #include <i2c.h>
 #include <mmc.h>
@@ -367,11 +368,23 @@ int board_init(void)
        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)
 {
        setup_i2c(1);
        power_init();
 
+#ifdef CONFIG_CMD_BMODE
+       add_board_boot_modes(board_boot_modes);
+#endif
        return 0;
 }
 

diff --git a/include/configs/mx53evk.h b/include/configs/mx53evk.h
index 0a7983306d075cb075bd3e8d8baaa8429b231b4e..b46855f7e426d6479e5737a39eef4e3d698eb97f 100644 (file)
--- a/include/configs/mx53evk.h
+++ b/include/configs/mx53evk.h
@@ -88,6 +88,9 @@
 #define CONFIG_CMD_NET
 #define CONFIG_CMD_DATE
 
+/* Miscellaneous commands */
+#define CONFIG_CMD_BMODE
+
 /* allow to overwrite serial and ethaddr */
 #define CONFIG_ENV_OVERWRITE
 #define CONFIG_CONS_INDEX              1