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// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
/*
* Google Veyron (and derivatives) fragment for sdmmc cards
*
* Copyright 2015 Google, Inc
*/
&io_domains {
sdcard-supply = <&vccio_sd>;
};
&pinctrl {
sdmmc {
/*
* We run sdmmc at max speed; bump up drive strength.
* We also have external pulls, so disable the internal ones.
*/
sdmmc_bus4: sdmmc-bus4 {
rockchip,pins = <6 16 RK_FUNC_1 &pcfg_pull_none_drv_8ma>,
<6 17 RK_FUNC_1 &pcfg_pull_none_drv_8ma>,
<6 18 RK_FUNC_1 &pcfg_pull_none_drv_8ma>,
<6 19 RK_FUNC_1 &pcfg_pull_none_drv_8ma>;
};
sdmmc_clk: sdmmc-clk {
rockchip,pins = <6 20 RK_FUNC_1 &pcfg_pull_none_drv_8ma>;
};
sdmmc_cmd: sdmmc-cmd {
rockchip,pins = <6 21 RK_FUNC_1 &pcfg_pull_none_drv_8ma>;
};
/*
* Builtin CD line is hooked to ground to prevent JTAG at boot
* (and also to get the voltage rail correct).
* Configure gpio6_C6 as GPIO so dw_mmc builtin CD doesn't
* think there's a card inserted
*/
sdmmc_cd_disabled: sdmmc-cd-disabled {
rockchip,pins = <6 22 RK_FUNC_GPIO &pcfg_pull_none>;
};
/* This is where we actually hook up CD */
sdmmc_cd_gpio: sdmmc-cd-gpio {
rockchip,pins = <7 5 RK_FUNC_GPIO &pcfg_pull_none>;
};
};
};
&rk808 {
vcc9-supply = <&vcc_5v>;
regulators {
vccio_sd: LDO_REG4 {
regulator-name = "vccio_sd";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <3300000>;
regulator-state-mem {
regulator-off-in-suspend;
};
};
vcc33_sd: LDO_REG5 {
regulator-name = "vcc33_sd";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
regulator-state-mem {
regulator-off-in-suspend;
};
};
};
};
&sdmmc {
status = "okay";
bus-width = <4>;
cap-mmc-highspeed;
cap-sd-highspeed;
card-detect-delay = <200>;
cd-gpios = <&gpio7 RK_PA5 GPIO_ACTIVE_LOW>;
rockchip,default-sample-phase = <90>;
sd-uhs-sdr12;
sd-uhs-sdr25;
sd-uhs-sdr50;
sd-uhs-sdr104;
vmmc-supply = <&vcc33_sd>;
vqmmc-supply = <&vccio_sd>;
};
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