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ot1200: setup i2c bus in board_early_init_f(..) 

Make it possible to use the i2c bus in SPL.

Signed-off-by: Christian Gmeiner <christian.gmeiner@gmail.com>
This commit is contained in:
Christian Gmeiner 2015-06-03 11:33:22 +02:00 committed by Stefano Babic
parent 09cfa8ee6a
commit cefe06bf84
1 changed files with 22 additions and 18 deletions
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40
board/bachmann/ot1200/ot1200.c
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@ -120,6 +120,27 @@ static void setup_iomux_features(void)
ARRAY_SIZE(feature_pads)); ARRAY_SIZE(feature_pads));
} }
#define PC MUX_PAD_CTRL(I2C_PAD_CTRL)
/* I2C3 - IO expander */
static struct i2c_pads_info i2c_pad_info2 = {
.scl = {
.i2c_mode = MX6_PAD_EIM_D17__I2C3_SCL | PC,
.gpio_mode = MX6_PAD_EIM_D17__GPIO3_IO17 | PC,
.gp = IMX_GPIO_NR(3, 17)
},
.sda = {
.i2c_mode = MX6_PAD_EIM_D18__I2C3_SDA | PC,
.gpio_mode = MX6_PAD_EIM_D18__GPIO3_IO18 | PC,
.gp = IMX_GPIO_NR(3, 18)
}
};
static void setup_iomux_i2c(void)
{
setup_i2c(2, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info2);
}
static void ccgr_init(void) static void ccgr_init(void)
{ {
struct mxc_ccm_reg *ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR; struct mxc_ccm_reg *ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR;
@ -151,6 +172,7 @@ int board_early_init_f(void)
setup_iomux_uart(); setup_iomux_uart();
setup_iomux_spi(); setup_iomux_spi();
setup_iomux_i2c();
setup_iomux_features(); setup_iomux_features();
return 0; return 0;
@ -236,22 +258,6 @@ int board_mmc_init(bd_t *bis)
return 0; return 0;
} }
#define PC MUX_PAD_CTRL(I2C_PAD_CTRL)
/* I2C3 - IO expander */
static struct i2c_pads_info i2c_pad_info2 = {
.scl = {
.i2c_mode = MX6_PAD_EIM_D17__I2C3_SCL | PC,
.gpio_mode = MX6_PAD_EIM_D17__GPIO3_IO17 | PC,
.gp = IMX_GPIO_NR(3, 17)
},
.sda = {
.i2c_mode = MX6_PAD_EIM_D18__I2C3_SDA | PC,
.gpio_mode = MX6_PAD_EIM_D18__GPIO3_IO18 | PC,
.gp = IMX_GPIO_NR(3, 18)
}
};
static iomux_v3_cfg_t const pwm_pad[] = { static iomux_v3_cfg_t const pwm_pad[] = {
MX6_PAD_SD1_CMD__PWM4_OUT | MUX_PAD_CTRL(OUTPUT_40OHM), MX6_PAD_SD1_CMD__PWM4_OUT | MUX_PAD_CTRL(OUTPUT_40OHM),
}; };
@ -315,8 +321,6 @@ int board_init(void)
backlight_lcd_off(); backlight_lcd_off();
setup_i2c(2, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info2);
leds_on(); leds_on();
#ifdef CONFIG_CMD_SATA #ifdef CONFIG_CMD_SATA