[U-Boot] [PATCH 4/4] ZOOM1 Add power reset button

Tom Rix
2009-06-10T12:53:52Z

The reset button is the red circle on the top right, front of
the board. Press and hold the button for 8 seconds to completely
reset the board.

Signed-off-by: Tom Rix <Tom.Rix@windriver.com>
---
board/omap3/zoom1/zoom1.c | 8 ++++++++
drivers/i2c/twl4030_i2c.c | 2 +-
include/configs/omap3_zoom1.h | 1 +
3 files changed, 10 insertions(+), 1 deletions(-)

diff --git a/board/omap3/zoom1/zoom1.c b/board/omap3/zoom1/zoom1.c
index db4d087..8a3afaf 100644
--- a/board/omap3/zoom1/zoom1.c
+++ b/board/omap3/zoom1/zoom1.c
@@ -31,6 +31,7 @@
* MA 02111-1307 USA
*/
#include <common.h>
+#include <twl4030.h>
#include <asm/io.h>
#include <asm/arch/mux.h>
#include <asm/arch/sys_proto.h>
@@ -51,6 +52,13 @@ int board_init(void)
/* boot param addr */
gd->bd->bi_boot_params = (OMAP34XX_SDRC_CS0 + 0x100);

+ /*
+ * Board Reset
+ * The board is reset by holding the red button on the
+ * top right front face for eight seconds.
+ */
+ twl4030_power_reset_init();
+
return 0;
}

diff --git a/drivers/i2c/twl4030_i2c.c b/drivers/i2c/twl4030_i2c.c
index 549f974..00146f8 100644
--- a/drivers/i2c/twl4030_i2c.c
+++ b/drivers/i2c/twl4030_i2c.c
@@ -40,7 +40,7 @@ static inline int twl4030_i2c_read_u8(u8 chip_no, u8 *val, u8 reg)
*/
void twl4030_power_reset_init(void)
{
-#ifdef CONFIG_OMAP3_ZOOM2
+#if defined(CONFIG_OMAP3_ZOOM2) || defined(CONFIG_OMAP3_ZOOM1)
u8 val = 0;
if (twl4030_i2c_read_u8(TWL4030_CHIP_PM_MASTER, &val,
TWL4030_PM_MASTER_P1_SW_EVENTS)) {
diff --git a/include/configs/omap3_zoom1.h b/include/configs/omap3_zoom1.h
index 9e000ed..983808e 100644
--- a/include/configs/omap3_zoom1.h
+++ b/include/configs/omap3_zoom1.h
@@ -124,6 +124,7 @@
#define CONFIG_SYS_I2C_BUS 0
#define CONFIG_SYS_I2C_BUS_SELECT 1
#define CONFIG_DRIVER_OMAP34XX_I2C 1
+#define CONFIG_DRIVER_TWL4030_I2C 1

/*
* Board NAND Info.
--
1.6.0.5