[U-Boot] [PATCH 2/2] omap5: Configure the tca6424 gpio expander

Dan Murphy
2013-07-08T20:54:00Z

Configure the tca6424 gpio expander
This allows use of the debug and tri color LEDs.
As well as HDMI PEO signal.

Signed-off-by: Dan Murphy <dmurphy@ti.com>
---
board/ti/omap5_uevm/evm.c | 12 ++++++++++++
board/ti/omap5_uevm/mux_data.h | 2 ++
include/configs/omap5_uevm.h | 5 +++++
3 files changed, 19 insertions(+)

diff --git a/board/ti/omap5_uevm/evm.c b/board/ti/omap5_uevm/evm.c
index 90046e8..ee96ae1 100644
--- a/board/ti/omap5_uevm/evm.c
+++ b/board/ti/omap5_uevm/evm.c
@@ -26,6 +26,7 @@
#include <palmas.h>
#include <asm/arch/sys_proto.h>
#include <asm/arch/mmc_host_def.h>
+#include <tca642x.h>

#include "mux_data.h"

@@ -35,6 +36,15 @@ const struct omap_sysinfo sysinfo = {
"Board: OMAP5430 EVM\n"
};

+/* Initial states for the GPIO expander
+ * input reg, output reg, polarity reg, configuration reg
+ */
+struct tca642x_bank_info tca642x_init[] = {
+ {0x00, 0x04, 0x00, 0x80},
+ {0x00, 0x00, 0x00, 0xff},
+ {0x00, 0x00, 0x00, 0x40},
+};
+
/**
* @brief board_init
*
@@ -46,6 +56,8 @@ int board_init(void)
gd->bd->bi_arch_number = MACH_TYPE_OMAP5_SEVM;
gd->bd->bi_boot_params = (0x80000000 + 0x100); /* boot param addr */

+ tca642x_set_inital_state(CONFIG_SYS_I2C_TCA642X_ADDR, tca642x_init);
+
return 0;
}

diff --git a/board/ti/omap5_uevm/mux_data.h b/board/ti/omap5_uevm/mux_data.h
index a82795d..7e6415e 100644
--- a/board/ti/omap5_uevm/mux_data.h
+++ b/board/ti/omap5_uevm/mux_data.h
@@ -56,6 +56,8 @@ const struct pad_conf_entry core_padconf_array_essential[] = {
{USBD0_HS_DP, (IEN | M0)}, /* USBD0_HS_DP */
{USBD0_HS_DM, (IEN | M0)}, /* USBD0_HS_DM */
{USBD0_SS_RX, (IEN | M0)}, /* USBD0_SS_RX */
+ {I2C5_SCL, (IEN | M0)}, /* I2C5_SCL */
+ {I2C5_SDA, (IEN | M0)}, /* I2C5_SDA */

};

diff --git a/include/configs/omap5_uevm.h b/include/configs/omap5_uevm.h
index 46dacc2..bee1278 100644
--- a/include/configs/omap5_uevm.h
+++ b/include/configs/omap5_uevm.h
@@ -53,6 +53,11 @@
#define CONFIG_PARTITION_UUIDS
#define CONFIG_CMD_PART

+#define CONFIG_TCA642X
+#define CONFIG_CMD_TCA642X
+#define CONFIG_SYS_I2C_TCA642X_BUS_NUM 4
+#define CONFIG_SYS_I2C_TCA642X_ADDR 0x22
+
#define CONFIG_SYS_PROMPT "OMAP5432 uEVM # "

#define CONSOLEDEV "ttyO2"
--
1.7.9.5