Commit 4d380708 authored by AngeloGioacchino Del Regno's avatar AngeloGioacchino Del Regno Committed by Matthias Brugger
Browse files

arm64: dts: mediatek: cherry: Add support for internal eMMC storage 



Add mtk-sd controller and pin configuration to enable the internal
eMMC storage: now it is possible to mount a rootfs located at the
internal storage.

Signed-off-by: default avatarAngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: default avatarNícolas F. R. A. Prado <nfraprado@collabora.com>
Link: https://lore.kernel.org/r/20220704101321.44835-6-angelogioacchino.delregno@collabora.com


Signed-off-by: default avatarMatthias Brugger <matthias.bgg@gmail.com>
parent 9e056506

arch/arm64/boot/dts/mediatek/mt8195-cherry.dtsi

+87 −0
Original line number Diff line number Diff line
@@ -9,6 +9,7 @@ 


/ {

	aliases {

		mmc0 = &mmc0;

		serial0 = &uart0;

	};
@@ -89,6 +90,26 @@ ppvar_sys: regulator-ppvar-sys { 
	};

};



&mmc0 {

	status = "okay";



	bus-width = <8>;

	cap-mmc-highspeed;

	cap-mmc-hw-reset;

	hs400-ds-delay = <0x14c11>;

	max-frequency = <200000000>;

	mmc-hs200-1_8v;

	mmc-hs400-1_8v;

	no-sdio;

	no-sd;

	non-removable;

	pinctrl-names = "default", "state_uhs";

	pinctrl-0 = <&mmc0_pins_default>;

	pinctrl-1 = <&mmc0_pins_uhs>;

	vmmc-supply = <&mt6359_vemc_1_ldo_reg>;

	vqmmc-supply = <&mt6359_vufs_ldo_reg>;

};



/* for CPU-L */

&mt6359_vcore_buck_reg {

	regulator-always-on;
@@ -125,6 +146,72 @@ &mt6359_vufs_ldo_reg { 
	regulator-always-on;

};



&pio {

	mmc0_pins_default: mmc0-default-pins {

		pins-cmd-dat {

			pinmux = <PINMUX_GPIO126__FUNC_MSDC0_DAT0>,

				 <PINMUX_GPIO125__FUNC_MSDC0_DAT1>,

				 <PINMUX_GPIO124__FUNC_MSDC0_DAT2>,

				 <PINMUX_GPIO123__FUNC_MSDC0_DAT3>,

				 <PINMUX_GPIO119__FUNC_MSDC0_DAT4>,

				 <PINMUX_GPIO118__FUNC_MSDC0_DAT5>,

				 <PINMUX_GPIO117__FUNC_MSDC0_DAT6>,

				 <PINMUX_GPIO116__FUNC_MSDC0_DAT7>,

				 <PINMUX_GPIO121__FUNC_MSDC0_CMD>;

			input-enable;

			drive-strength = <6>;

			bias-pull-up = <MTK_PUPD_SET_R1R0_01>;

		};



		pins-clk {

			pinmux = <PINMUX_GPIO122__FUNC_MSDC0_CLK>;

			drive-strength = <6>;

			bias-pull-down = <MTK_PUPD_SET_R1R0_10>;

		};



		pins-rst {

			pinmux = <PINMUX_GPIO120__FUNC_MSDC0_RSTB>;

			drive-strength = <6>;

			bias-pull-up = <MTK_PUPD_SET_R1R0_01>;

		};

	};



	mmc0_pins_uhs: mmc0-uhs-pins {

		pins-cmd-dat {

			pinmux = <PINMUX_GPIO126__FUNC_MSDC0_DAT0>,

				 <PINMUX_GPIO125__FUNC_MSDC0_DAT1>,

				 <PINMUX_GPIO124__FUNC_MSDC0_DAT2>,

				 <PINMUX_GPIO123__FUNC_MSDC0_DAT3>,

				 <PINMUX_GPIO119__FUNC_MSDC0_DAT4>,

				 <PINMUX_GPIO118__FUNC_MSDC0_DAT5>,

				 <PINMUX_GPIO117__FUNC_MSDC0_DAT6>,

				 <PINMUX_GPIO116__FUNC_MSDC0_DAT7>,

				 <PINMUX_GPIO121__FUNC_MSDC0_CMD>;

			input-enable;

			drive-strength = <8>;

			bias-pull-up = <MTK_PUPD_SET_R1R0_01>;

		};



		pins-clk {

			pinmux = <PINMUX_GPIO122__FUNC_MSDC0_CLK>;

			drive-strength = <8>;

			bias-pull-down = <MTK_PUPD_SET_R1R0_10>;

		};



		pins-ds {

			pinmux = <PINMUX_GPIO127__FUNC_MSDC0_DSL>;

			drive-strength = <8>;

			bias-pull-down = <MTK_PUPD_SET_R1R0_10>;

		};



		pins-rst {

			pinmux = <PINMUX_GPIO120__FUNC_MSDC0_RSTB>;

			drive-strength = <8>;

			bias-pull-up = <MTK_PUPD_SET_R1R0_01>;

		};

	};

};



&pmic {

	interrupts-extended = <&pio 222 IRQ_TYPE_LEVEL_HIGH>;

};