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authorAlessandro Rubini <rubini@unipv.it>2009-07-24 11:27:14 +0200
committerHeiko Schocher <hs@denx.de>2009-07-29 09:57:47 +0200
commitbb4291e62579dbc611e84eaaf973631e0bf129c7 (patch)
tree2a2bc8563067e0554fd154184cb6b0866d2a5096 /board
parent60cbfbfd0fbebb4682f10ba96f622bfe17317598 (diff)
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u-boot-imx-bb4291e62579dbc611e84eaaf973631e0bf129c7.tar.gz
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arm nomadik: add i2c
Signed-off-by: Alessandro Rubini <rubini@unipv.it> Acked-by: Andrea Gallo <andrea.gallo@stericsson.com> Acked-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Diffstat (limited to 'board')
-rw-r--r--board/st/nhk8815/nhk8815.c16
1 files changed, 14 insertions, 2 deletions
diff --git a/board/st/nhk8815/nhk8815.c b/board/st/nhk8815/nhk8815.c
index 085a5e0..1fa506a 100644
--- a/board/st/nhk8815/nhk8815.c
+++ b/board/st/nhk8815/nhk8815.c
@@ -27,6 +27,7 @@
#include <common.h>
#include <asm/io.h>
+#include <asm/arch/gpio.h>
DECLARE_GLOBAL_DATA_PTR;
@@ -61,9 +62,20 @@ int board_init(void)
return 0;
}
-int misc_init_r(void)
+int board_late_init(void)
{
- setenv("verify", "n");
+ /* Set the two I2C gpio lines to be gpio high */
+ nmk_gpio_set(__SCL, 1); nmk_gpio_set(__SDA, 1);
+ nmk_gpio_dir(__SCL, 1); nmk_gpio_dir(__SDA, 1);
+ nmk_gpio_af(__SCL, GPIO_GPIO); nmk_gpio_af(__SDA, GPIO_GPIO);
+
+ /* Reset the I2C port expander, on GPIO77 */
+ nmk_gpio_af(77, GPIO_GPIO);
+ nmk_gpio_dir(77, 1);
+ nmk_gpio_set(77, 0);
+ udelay(10);
+ nmk_gpio_set(77, 1);
+
return 0;
}