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nitrogen6x: configure SD2 pads for SDIO on USDHC2 

Pads SD2_CLK/CMD/DAT0-3 are connected to an SDIO WiFi device on
Nitrogen and unconnected on BD-SL-i.MX6 (sabre lite).

Configure them as SDIO pins to prevent them from being in a state
that confuses the WiFi part.

Signed-off-by: Eric Nelson <eric.nelson@boundarydevices.com>
This commit is contained in:
Eric Nelson 2014-10-02 12:16:24 -07:00 committed by Stefano Babic
parent 213e9e3348
commit 41612472b6
1 changed files with 11 additions and 0 deletions
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11
board/boundary/nitrogen6x/nitrogen6x.c
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@ -124,6 +124,15 @@ struct i2c_pads_info i2c_pad_info2 = {
} }
}; };
static iomux_v3_cfg_t const usdhc2_pads[] = {
MX6_PAD_SD2_CLK__SD2_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
MX6_PAD_SD2_CMD__SD2_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
MX6_PAD_SD2_DAT0__SD2_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
MX6_PAD_SD2_DAT1__SD2_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
MX6_PAD_SD2_DAT2__SD2_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
MX6_PAD_SD2_DAT3__SD2_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
};
iomux_v3_cfg_t const usdhc3_pads[] = { iomux_v3_cfg_t const usdhc3_pads[] = {
MX6_PAD_SD3_CLK__SD3_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL), MX6_PAD_SD3_CLK__SD3_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
MX6_PAD_SD3_CMD__SD3_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL), MX6_PAD_SD3_CMD__SD3_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
@ -657,6 +666,8 @@ int board_init(void)
#ifdef CONFIG_MXC_SPI #ifdef CONFIG_MXC_SPI
setup_spi(); setup_spi();
#endif #endif
imx_iomux_v3_setup_multiple_pads(
usdhc2_pads, ARRAY_SIZE(usdhc2_pads));
setup_i2c(0, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info0); setup_i2c(0, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info0);
setup_i2c(1, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info1); setup_i2c(1, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info1);
setup_i2c(2, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info2); setup_i2c(2, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info2);