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boards: nxp: vmu_rt1170: fix SD card pin control setup

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Fix SD card pinctrl setup for the VMU RT1170 board. The following
changes were made:
- use the "cd-gpios" property over detecting the card using the
  USDHC card detect register. This should be more reliable.
- bias the clk pin high. This matches setup for the RT1170 EVK SD
  pinctrl.
- remove the drive strength setting for SD pins to align with the
  pinctrl settings for low speed SD mode (50 MHz) on the RT1170 EVK.

Signed-off-by: Daniel DeGrasse <daniel.degrasse@nxp.com>
This commit is contained in:
Daniel DeGrasse 2024-04-26 23:25:16 +00:00 • committed by Carles Cufí
commit 7374678d51
2 changed files with 3 additions and 13 deletions
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15
boards/nxp/vmu_rt1170/vmu_rt1170-pinctrl.dtsi
View file

@ -344,20 +344,9 @@
<&iomuxc_gpio_sd_b1_02_usdhc1_data0>,
<&iomuxc_gpio_sd_b1_03_usdhc1_data1>,
<&iomuxc_gpio_sd_b1_04_usdhc1_data2>,
<&iomuxc_gpio_sd_b1_05_usdhc1_data3>;
<&iomuxc_gpio_sd_b1_05_usdhc1_data3>,
<&iomuxc_gpio_sd_b1_01_usdhc1_clk>;
bias-pull-up;
drive-strength = "high";
slew-rate = "fast";
input-enable;
};
group1 {
pinmux = <&iomuxc_gpio_sd_b1_01_usdhc1_clk>;
drive-strength = "high";
slew-rate = "fast";
};
group2 {
pinmux = <&iomuxc_gpio_ad_32_usdhc1_cd_b>;
bias-pull-down;
input-enable;
};
};

1
boards/nxp/vmu_rt1170/vmu_rt1170_mimxrt1176_cm7.dts
View file

@ -402,6 +402,7 @@
status = "okay";
no-1-8-v;
pwr-gpios = <&gpio1 1 GPIO_ACTIVE_HIGH>;
cd-gpios = <&gpio3 31 (GPIO_ACTIVE_LOW | GPIO_PULL_DOWN)>;
sdmmc {
compatible = "zephyr,sdmmc-disk";
status = "okay";