90 lines
2.0 KiB
Plaintext
90 lines
2.0 KiB
Plaintext
|
// 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 RK_PC0 1 &pcfg_pull_none_drv_8ma>,
|
||
|
|
<6 RK_PC1 1 &pcfg_pull_none_drv_8ma>,
|
||
|
|
<6 RK_PC2 1 &pcfg_pull_none_drv_8ma>,
|
||
|
|
<6 RK_PC3 1 &pcfg_pull_none_drv_8ma>;
|
||
|
|
};
|
||
|
|
|
||
|
|
sdmmc_clk: sdmmc-clk {
|
||
|
|
rockchip,pins = <6 RK_PC4 1 &pcfg_pull_none_drv_8ma>;
|
||
|
|
};
|
||
|
|
|
||
|
|
sdmmc_cmd: sdmmc-cmd {
|
||
|
|
rockchip,pins = <6 RK_PC5 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 RK_PC6 RK_FUNC_GPIO &pcfg_pull_none>;
|
||
|
|
};
|
||
|
|
|
||
|
|
/* This is where we actually hook up CD */
|
||
|
|
sdmmc_cd_pin: sdmmc-cd-pin {
|
||
|
|
rockchip,pins = <7 RK_PA5 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>;
|
||
|
|
};
|