From 3ae6abb697b85516975443ca7eac44d18ed4c53f Mon Sep 17 00:00:00 2001
From: Stefano Babic <sbabic@denx.de>
Date: Wed, 13 Jun 2012 22:34:44 +0000
Subject: [PATCH] OMAP3: mcx: read hot-water-button after reset
Detect hot-water-button to start a differnt image.
Signed-off-by: Stefano Babic <sbabic@denx.de>
CC: Tom Rini <trini@ti.com>
---
board/htkw/mcx/mcx.c | 23 +++++++++++++++++++++++
include/configs/mcx.h | 2 ++
2 files changed, 25 insertions(+)
diff --git a/board/htkw/mcx/mcx.c b/board/htkw/mcx/mcx.c
index 8f75af19d4..454ff0a846 100644
--- a/board/htkw/mcx/mcx.c
+++ b/board/htkw/mcx/mcx.c
@@ -37,6 +37,8 @@
DECLARE_GLOBAL_DATA_PTR;
+#define HOT_WATER_BUTTON 38
+
#ifdef CONFIG_USB_EHCI
static struct omap_usbhs_board_data usbhs_bdata = {
.port_mode[0] = OMAP_EHCI_PORT_MODE_PHY,
@@ -68,6 +70,27 @@ int board_init(void)
return 0;
}
+#ifdef CONFIG_BOARD_LATE_INIT
+int board_late_init(void)
+{
+ if (gpio_request(HOT_WATER_BUTTON, "hot-water-button") < 0) {
+ puts("Failed to get hot-water-button pin\n");
+ return -ENODEV;
+ }
+ gpio_direction_input(HOT_WATER_BUTTON);
+
+ /*
+ * if hot-water-button is pressed
+ * change bootcmd
+ */
+ if (gpio_get_value(HOT_WATER_BUTTON))
+ return 0;
+
+ setenv("bootcmd", "run swupdate");
+ return 0;
+}
+#endif
+
/*
* Routine: set_muxconf_regs
* Description: Setting up the configuration Mux registers specific to the
diff --git a/include/configs/mcx.h b/include/configs/mcx.h
index 9d552a0f51..ad7078c0f5 100644
--- a/include/configs/mcx.h
+++ b/include/configs/mcx.h
@@ -30,6 +30,7 @@
#define MACH_TYPE_MCX 3656
#define CONFIG_MACH_TYPE MACH_TYPE_MCX
+#define CONFIG_BOARD_LATE_INIT
#define CONFIG_SYS_CACHELINE_SIZE 64
@@ -140,6 +141,7 @@
#define CONFIG_MTD_PARTITIONS
#define CONFIG_MTD_DEVICE
#define CONFIG_CMD_MTDPARTS
+#define CONFIG_CMD_GPIO
#undef CONFIG_CMD_FLASH /* flinfo, erase, protect */
#undef CONFIG_CMD_FPGA /* FPGA configuration Support */
--
2.39.5