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gpio: omap5-uevm: Configure the tca6424 gpio expander

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Configure the tca6424 gpio expander
This allows use of the debug and tri color LEDs.

Signed-off-by: Dan Murphy <dmurphy@ti.com>
This commit is contained in:
Dan Murphy 2013-07-11 13:10:28 -05:00 committed by Tom Rini
parent 61c1775f16
commit fdce7b633a
3 changed files with 29 additions and 0 deletions
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22
board/ti/omap5_uevm/evm.c
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@ -10,6 +10,7 @@
#include <palmas.h>
#include <asm/arch/sys_proto.h>
#include <asm/arch/mmc_host_def.h>
#include <tca642x.h>
#include "mux_data.h"
@ -19,6 +20,25 @@ const struct omap_sysinfo sysinfo = {
"Board: OMAP5430 EVM\n"
};
/**
* @brief tca642x_init - uEVM default values for the GPIO expander
* input reg, output reg, polarity reg, configuration reg
*/
struct tca642x_bank_info tca642x_init[] = {
{ .input_reg = 0x00,
.output_reg = 0x04,
.polarity_reg = 0x00,
.configuration_reg = 0x80 },
{ .input_reg = 0x00,
.output_reg = 0x00,
.polarity_reg = 0x00,
.configuration_reg = 0xff },
{ .input_reg = 0x00,
.output_reg = 0x00,
.polarity_reg = 0x00,
.configuration_reg = 0x40 },
};
/**
* @brief board_init
*
@ -30,6 +50,8 @@ 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;
}

2
board/ti/omap5_uevm/mux_data.h
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@ -40,6 +40,8 @@ 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 */
};

5
include/configs/omap5_uevm.h
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@ -37,6 +37,11 @@
#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"