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OMAP3: mcx: read hot-water-button after reset

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Detect hot-water-button to start a differnt image.

Signed-off-by: Stefano Babic <sbabic@denx.de>
CC: Tom Rini <trini@ti.com>
This commit is contained in:
Stefano Babic 2012-06-13 22:34:44 +00:00 committed by Albert ARIBAUD
parent f89a8b6a76
commit 3ae6abb697
2 changed files with 25 additions and 0 deletions
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23
board/htkw/mcx/mcx.c
View File

@ -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

2
include/configs/mcx.h
View File

@ -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 */