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arm64: dts: renesas: rzg2ul-smarc-som: Enable eMMC on SMARC platform 

RZ/G2UL SoM has both 64GB eMMC and microSD connected to SDHI0.

Both these interfaces are mutually exclusive and the SD0 device
selection is based on SW1[2] on SoM module.

Set SW1[2] to position OFF for selecting eMMC
Set SW1[2] to position ON for selecting microSD

This patch enables eMMC on RZ/G2UL SMARC platform by default.

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Link: https://lore.kernel.org/r/20220402081328.26292-7-biju.das.jz@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
This commit is contained in:
Biju Das 2022-04-02 09:13:27 +01:00 committed by Geert Uytterhoeven
parent a74a0bf3f3
commit ed8efe50b7
2 changed files with 112 additions and 0 deletions
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104
arch/arm64/boot/dts/renesas/rzg2ul-smarc-som.dtsi
View File

@ -19,6 +19,15 @@
reg = <0x0 0x48000000 0x0 0x38000000>;
};
reg_1p8v: regulator0 {
compatible = "regulator-fixed";
regulator-name = "fixed-1.8V";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
regulator-boot-on;
regulator-always-on;
};
reg_3p3v: regulator1 {
compatible = "regulator-fixed";
regulator-name = "fixed-3.3V";
@ -27,8 +36,103 @@
regulator-boot-on;
regulator-always-on;
};
#if !(SW_SW0_DEV_SEL)
vccq_sdhi0: regulator-vccq-sdhi0 {
compatible = "regulator-gpio";
regulator-name = "SDHI0 VccQ";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <3300000>;
states = <3300000 1>, <1800000 0>;
regulator-boot-on;
gpios = <&pinctrl RZG2L_GPIO(6, 2) GPIO_ACTIVE_HIGH>;
regulator-always-on;
};
#endif
};
&extal_clk {
clock-frequency = <24000000>;
};
&pinctrl {
sdhi0_emmc_pins: sd0emmc {
sd0_emmc_data {
pins = "SD0_DATA0", "SD0_DATA1", "SD0_DATA2", "SD0_DATA3",
"SD0_DATA4", "SD0_DATA5", "SD0_DATA6", "SD0_DATA7";
power-source = <1800>;
};
sd0_emmc_ctrl {
pins = "SD0_CLK", "SD0_CMD";
power-source = <1800>;
};
sd0_emmc_rst {
pins = "SD0_RST#";
power-source = <1800>;
};
};
sdhi0_pins: sd0 {
sd0_data {
pins = "SD0_DATA0", "SD0_DATA1", "SD0_DATA2", "SD0_DATA3";
power-source = <3300>;
};
sd0_ctrl {
pins = "SD0_CLK", "SD0_CMD";
power-source = <3300>;
};
sd0_mux {
pinmux = <RZG2L_PORT_PINMUX(0, 0, 1)>; /* SD0_CD */
};
};
sdhi0_pins_uhs: sd0_uhs {
sd0_data_uhs {
pins = "SD0_DATA0", "SD0_DATA1", "SD0_DATA2", "SD0_DATA3";
power-source = <1800>;
};
sd0_ctrl_uhs {
pins = "SD0_CLK", "SD0_CMD";
power-source = <1800>;
};
sd0_mux_uhs {
pinmux = <RZG2L_PORT_PINMUX(0, 0, 1)>; /* SD0_CD */
};
};
};
#if (SW_SW0_DEV_SEL)
&sdhi0 {
pinctrl-0 = <&sdhi0_emmc_pins>;
pinctrl-1 = <&sdhi0_emmc_pins>;
pinctrl-names = "default", "state_uhs";
vmmc-supply = <&reg_3p3v>;
vqmmc-supply = <&reg_1p8v>;
bus-width = <8>;
mmc-hs200-1_8v;
non-removable;
fixed-emmc-driver-type = <1>;
status = "okay";
};
#else
&sdhi0 {
pinctrl-0 = <&sdhi0_pins>;
pinctrl-1 = <&sdhi0_pins_uhs>;
pinctrl-names = "default", "state_uhs";
vmmc-supply = <&reg_3p3v>;
vqmmc-supply = <&vccq_sdhi0>;
bus-width = <4>;
sd-uhs-sdr50;
sd-uhs-sdr104;
status = "okay";
};
#endif

8
arch/arm64/boot/dts/renesas/rzg2ul-smarc.dtsi
View File

@ -5,6 +5,14 @@
* Copyright (C) 2022 Renesas Electronics Corp.
*/
/*
* DIP-Switch SW1 setting
* 1 : High; 0: Low
* SW1-2 : SW_SD0_DEV_SEL (0: uSD; 1: eMMC)
* Please change below macros according to SW1 setting
*/
#define SW_SW0_DEV_SEL 1
#include "rzg2ul-smarc-som.dtsi"
#include "rzg2ul-smarc-pinfunction.dtsi"
#include "rz-smarc-common.dtsi"