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arm64: dts: amlogic: t7: khadas-vim4: Add MMC nodes

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Enable and configure the three MMC controllers for the Khadas VIM4 board:
- sd_emmc_a: SDIO interface for the BCM43752 Wi-Fi module
- sd_emmc_b: SD card slot
- sd_emmc_c: eMMC storage

Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Ronald Claveau <linux-kernel-dev@aliel.fr>
Link: https://patch.msgid.link/20260326-add-emmc-t7-vim4-v5-9-d3f182b48e9d@aliel.fr
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
This commit is contained in:
Ronald Claveau 2026-03-26 10:59:20 +01:00 committed by Neil Armstrong
parent 4d2663f85f
commit 003080cf2c
1 changed files with 88 additions and 0 deletions
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88
arch/arm64/boot/dts/amlogic/amlogic-t7-a311d2-khadas-vim4.dts
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@ -15,6 +15,9 @@ / {
aliases {
serial0 = &uart_a;
mmc0 = &sd_emmc_c;
mmc1 = &sd_emmc_b;
mmc2 = &sd_emmc_a;
};
memory@0 {
@ -160,6 +163,91 @@ &pwm_ab {
pinctrl-names = "default";
};
/* SDIO */
&sd_emmc_a {
status = "okay";
pinctrl-0 = <&sdio_pins>;
pinctrl-1 = <&sdio_clk_gate_pins>;
pinctrl-names = "default", "clk-gate";
#address-cells = <1>;
#size-cells = <0>;
bus-width = <4>;
cap-sd-highspeed;
sd-uhs-sdr12;
sd-uhs-sdr25;
sd-uhs-sdr50;
sd-uhs-sdr104;
cap-sdio-irq;
max-frequency = <200000000>;
non-removable;
disable-wp;
no-mmc;
no-sd;
power-domains = <&pwrc PWRC_T7_SDIO_A_ID>;
keep-power-in-suspend;
mmc-pwrseq = <&sdio_pwrseq>;
vmmc-supply = <&vddao_3v3>;
vqmmc-supply = <&vddao_1v8>;
brcmf: wifi@1 {
reg = <1>;
compatible = "brcm,bcm43752-fmac", "brcm,bcm4329-fmac";
};
};
/* SD card */
&sd_emmc_b {
status = "okay";
pinctrl-0 = <&sdcard_pins>;
pinctrl-1 = <&sdcard_clk_gate_pins>;
pinctrl-names = "default", "clk-gate";
bus-width = <4>;
cap-sd-highspeed;
sd-uhs-sdr12;
sd-uhs-sdr25;
sd-uhs-sdr50;
sd-uhs-sdr104;
max-frequency = <200000000>;
disable-wp;
no-sdio;
no-mmc;
power-domains = <&pwrc PWRC_T7_SDIO_B_ID>;
cd-gpios = <&gpio GPIOC_6 GPIO_ACTIVE_LOW>;
vmmc-supply = <&sd_3v3>;
vqmmc-supply = <&vddio_c>;
};
/* eMMC */
&sd_emmc_c {
status = "okay";
pinctrl-0 = <&emmc_ctrl_pins>, <&emmc_data_8b_pins>, <&emmc_ds_pins>;
pinctrl-1 = <&emmc_clk_gate_pins>;
pinctrl-names = "default", "clk-gate";
bus-width = <8>;
cap-mmc-highspeed;
mmc-ddr-1_8v;
mmc-hs200-1_8v;
max-frequency = <200000000>;
disable-wp;
non-removable;
no-sdio;
no-sd;
power-domains = <&pwrc PWRC_T7_EMMC_ID>;
vmmc-supply = <&vddio_3v3>;
vqmmc-supply = <&vddio_1v8>;
};
&uart_a {
status = "okay";
clocks = <&xtal>, <&xtal>, <&xtal>;