1// SPDX-License-Identifier: (GPL-2.0+ OR MIT) 2/* 3 * Google Veyron (and derivatives) fragment for sdmmc cards 4 * 5 * Copyright 2015 Google, Inc 6 */ 7 8/ { 9 aliases { 10 mmc1 = &sdmmc; 11 }; 12}; 13 14&io_domains { 15 sdcard-supply = <&vccio_sd>; 16}; 17 18&pinctrl { 19 sdmmc { 20 /* 21 * We run sdmmc at max speed; bump up drive strength. 22 * We also have external pulls, so disable the internal ones. 23 */ 24 sdmmc_bus4: sdmmc-bus4 { 25 rockchip,pins = <6 RK_PC0 1 &pcfg_pull_none_drv_8ma>, 26 <6 RK_PC1 1 &pcfg_pull_none_drv_8ma>, 27 <6 RK_PC2 1 &pcfg_pull_none_drv_8ma>, 28 <6 RK_PC3 1 &pcfg_pull_none_drv_8ma>; 29 }; 30 31 sdmmc_clk: sdmmc-clk { 32 rockchip,pins = <6 RK_PC4 1 &pcfg_pull_none_drv_8ma>; 33 }; 34 35 sdmmc_cmd: sdmmc-cmd { 36 rockchip,pins = <6 RK_PC5 1 &pcfg_pull_none_drv_8ma>; 37 }; 38 39 /* 40 * Builtin CD line is hooked to ground to prevent JTAG at boot 41 * (and also to get the voltage rail correct). 42 * Configure gpio6_C6 as GPIO so dw_mmc builtin CD doesn't 43 * think there's a card inserted 44 */ 45 sdmmc_cd_disabled: sdmmc-cd-disabled { 46 rockchip,pins = <6 RK_PC6 RK_FUNC_GPIO &pcfg_pull_none>; 47 }; 48 49 /* This is where we actually hook up CD */ 50 sdmmc_cd_pin: sdmmc-cd-pin { 51 rockchip,pins = <7 RK_PA5 RK_FUNC_GPIO &pcfg_pull_none>; 52 }; 53 }; 54}; 55 56&rk808 { 57 vcc9-supply = <&vcc_5v>; 58 59 regulators { 60 vccio_sd: LDO_REG4 { 61 regulator-name = "vccio_sd"; 62 regulator-min-microvolt = <1800000>; 63 regulator-max-microvolt = <3300000>; 64 regulator-state-mem { 65 regulator-off-in-suspend; 66 }; 67 }; 68 69 vcc33_sd: LDO_REG5 { 70 regulator-name = "vcc33_sd"; 71 regulator-min-microvolt = <3300000>; 72 regulator-max-microvolt = <3300000>; 73 regulator-state-mem { 74 regulator-off-in-suspend; 75 }; 76 }; 77 }; 78}; 79 80&sdmmc { 81 status = "okay"; 82 83 bus-width = <4>; 84 cap-mmc-highspeed; 85 cap-sd-highspeed; 86 card-detect-delay = <200>; 87 cd-gpios = <&gpio7 RK_PA5 GPIO_ACTIVE_LOW>; 88 rockchip,default-sample-phase = <90>; 89 sd-uhs-sdr12; 90 sd-uhs-sdr25; 91 sd-uhs-sdr50; 92 sd-uhs-sdr104; 93 vmmc-supply = <&vcc33_sd>; 94 vqmmc-supply = <&vccio_sd>; 95}; 96