GNU Linux-libre 4.19.264-gnu1
[releases.git] / arch / arm / boot / dts / rk3288-veyron-sdmmc.dtsi
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 &io_domains {
9         sdcard-supply = <&vccio_sd>;
10 };
11
12 &pinctrl {
13         sdmmc {
14                 /*
15                  * We run sdmmc at max speed; bump up drive strength.
16                  * We also have external pulls, so disable the internal ones.
17                  */
18                 sdmmc_bus4: sdmmc-bus4 {
19                         rockchip,pins = <6 16 RK_FUNC_1 &pcfg_pull_none_drv_8ma>,
20                                         <6 17 RK_FUNC_1 &pcfg_pull_none_drv_8ma>,
21                                         <6 18 RK_FUNC_1 &pcfg_pull_none_drv_8ma>,
22                                         <6 19 RK_FUNC_1 &pcfg_pull_none_drv_8ma>;
23                 };
24
25                 sdmmc_clk: sdmmc-clk {
26                         rockchip,pins = <6 20 RK_FUNC_1 &pcfg_pull_none_drv_8ma>;
27                 };
28
29                 sdmmc_cmd: sdmmc-cmd {
30                         rockchip,pins = <6 21 RK_FUNC_1 &pcfg_pull_none_drv_8ma>;
31                 };
32
33                 /*
34                  * Builtin CD line is hooked to ground to prevent JTAG at boot
35                  * (and also to get the voltage rail correct).
36                  * Configure gpio6_C6 as GPIO so dw_mmc builtin CD doesn't
37                  * think there's a card inserted
38                  */
39                 sdmmc_cd_disabled: sdmmc-cd-disabled {
40                         rockchip,pins = <6 22 RK_FUNC_GPIO &pcfg_pull_none>;
41                 };
42
43                 /* This is where we actually hook up CD */
44                 sdmmc_cd_gpio: sdmmc-cd-gpio {
45                         rockchip,pins = <7 5 RK_FUNC_GPIO &pcfg_pull_none>;
46                 };
47         };
48 };
49
50 &rk808 {
51         vcc9-supply = <&vcc_5v>;
52
53         regulators {
54                 vccio_sd: LDO_REG4 {
55                         regulator-name = "vccio_sd";
56                         regulator-min-microvolt = <1800000>;
57                         regulator-max-microvolt = <3300000>;
58                         regulator-state-mem {
59                                 regulator-off-in-suspend;
60                         };
61                 };
62
63                 vcc33_sd: LDO_REG5 {
64                         regulator-name = "vcc33_sd";
65                         regulator-min-microvolt = <3300000>;
66                         regulator-max-microvolt = <3300000>;
67                         regulator-state-mem {
68                                 regulator-off-in-suspend;
69                         };
70                 };
71         };
72 };
73
74 &sdmmc {
75         status = "okay";
76
77         bus-width = <4>;
78         cap-mmc-highspeed;
79         cap-sd-highspeed;
80         card-detect-delay = <200>;
81         cd-gpios = <&gpio7 RK_PA5 GPIO_ACTIVE_LOW>;
82         rockchip,default-sample-phase = <90>;
83         sd-uhs-sdr12;
84         sd-uhs-sdr25;
85         sd-uhs-sdr50;
86         sd-uhs-sdr104;
87         vmmc-supply = <&vcc33_sd>;
88         vqmmc-supply = <&vccio_sd>;
89 };