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Subject[PATCH 3/3] ARM: dts: meson8b: odroidc1: enable the SDHC controller
Date
Odroid-C1 has an eMMC connector where users can optionally install an
eMMC module. The eMMC modules run off a 1.8V VQMMC supply which means
that HS-200 mode can be used (this is the highest mode that the SDHC
controller supports). Enable the SDHC controller so eMMC modules can be
accessed.

Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
---
arch/arm/boot/dts/meson8b-odroidc1.dts | 26 ++++++++++++++++++++++++++
1 file changed, 26 insertions(+)

diff --git a/arch/arm/boot/dts/meson8b-odroidc1.dts b/arch/arm/boot/dts/meson8b-odroidc1.dts
index cb21ac9f517c..0c26467de4d0 100644
--- a/arch/arm/boot/dts/meson8b-odroidc1.dts
+++ b/arch/arm/boot/dts/meson8b-odroidc1.dts
@@ -15,6 +15,7 @@ / {
aliases {
serial0 = &uart_AO;
mmc0 = &sd_card_slot;
+ mmc1 = &sdhc;
};

chosen {
@@ -26,6 +27,11 @@ memory {
reg = <0x40000000 0x40000000>;
};

+ emmc_pwrseq: emmc-pwrseq {
+ compatible = "mmc-pwrseq-emmc";
+ reset-gpios = <&gpio BOOT_9 GPIO_ACTIVE_LOW>;
+ };
+
leds {
compatible = "gpio-leds";
blue {
@@ -310,6 +316,26 @@ &saradc {
vref-supply = <&vcc_1v8>;
};

+&sdhc {
+ status = "okay";
+
+ pinctrl-0 = <&sdxc_c_pins>;
+ pinctrl-names = "default";
+
+ bus-width = <8>;
+ max-frequency = <100000000>;
+
+ disable-wp;
+ cap-mmc-highspeed;
+ mmc-hs200-1_8v;
+ no-sdio;
+
+ mmc-pwrseq = <&emmc_pwrseq>;
+
+ vmmc-supply = <&vcc_3v3>;
+ vqmmc-supply = <&vcc_1v8>;
+};
+
&sdio {
status = "okay";

--
2.27.0
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