EC-100 has built-in eMMC flash which is hard-wired to 3.3V VCC (which means it's limited to high-speed MMC modes). Enable the SDHC controller to access the contents of the eMMC flash.
Signed-off-by: Martin Blumenstingl <[email protected]> --- arch/arm/boot/dts/meson8b-ec100.dts | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) diff --git a/arch/arm/boot/dts/meson8b-ec100.dts b/arch/arm/boot/dts/meson8b-ec100.dts index 163a200d5a7b..ed06102a4014 100644 --- a/arch/arm/boot/dts/meson8b-ec100.dts +++ b/arch/arm/boot/dts/meson8b-ec100.dts @@ -27,6 +27,11 @@ memory { reg = <0x40000000 0x40000000>; }; + emmc_pwrseq: emmc-pwrseq { + compatible = "mmc-pwrseq-emmc"; + reset-gpios = <&gpio BOOT_9 GPIO_ACTIVE_LOW>; + }; + gpio-keys { compatible = "gpio-keys-polled"; #address-cells = <1>; @@ -299,6 +304,26 @@ &saradc { vref-supply = <&vcc_1v8>; }; +&sdhc { + status = "okay"; + + pinctrl-0 = <&sdxc_c_pins>; + pinctrl-names = "default"; + + bus-width = <8>; + max-frequency = <50000000>; + + cap-mmc-highspeed; + disable-wp; + non-removable; + no-sdio; + + mmc-pwrseq = <&emmc_pwrseq>; + + vmmc-supply = <&vcc_3v3>; + vqmmc-supply = <&vcc_3v3>; +}; + &sdio { status = "okay"; -- 2.27.0
