[U-Boot] [PATCH V3 3/3] mx53evk: add resetmode support

Troy Kisky
2012-08-09T01:26:34Z

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>

Compile tested only, I don't have a mx53evk.
---
board/freescale/mx53evk/mx53evk.c | 13 +++++++++++++
include/configs/mx53evk.h | 3 +++
2 files changed, 16 insertions(+)

diff --git a/board/freescale/mx53evk/mx53evk.c b/board/freescale/mx53evk/mx53evk.c
index 8a6e31d..48499d6 100644
--- 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/resetmode.h>
#include <netdev.h>
#include <i2c.h>
#include <mmc.h>
@@ -367,11 +368,23 @@ int board_init(void)
return 0;
}

+#ifdef CONFIG_CMD_RESETMODE
+static const struct reset_mode board_reset_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_RESETMODE
+ add_board_resetmodes(board_reset_modes);
+#endif
return 0;
}

diff --git a/include/configs/mx53evk.h b/include/configs/mx53evk.h
index 67def93..44e0921 100644
--- a/include/configs/mx53evk.h
+++ b/include/configs/mx53evk.h
@@ -89,6 +89,9 @@
#define CONFIG_CMD_NET
#define CONFIG_CMD_DATE

+/* Miscellaneous commands */
+#define CONFIG_CMD_RESETMODE
+
/* allow to overwrite serial and ethaddr */
#define CONFIG_ENV_OVERWRITE
#define CONFIG_CONS_INDEX 1
--
1.7.9.5