| Alexandru M Stan | e28ea9d | 2015-07-07 19:42:53 +0200 | [diff] [blame] | 1 | /* |
| 2 | * Google Veyron (and derivatives) fragment for sdmmc cards |
| 3 | * |
| 4 | * Copyright 2015 Google, Inc |
| 5 | * |
| 6 | * This file is dual-licensed: you can use it either under the terms |
| 7 | * of the GPL or the X11 license, at your option. Note that this dual |
| 8 | * licensing only applies to this file, and not this project as a |
| 9 | * whole. |
| 10 | * |
| 11 | * a) This file is free software; you can redistribute it and/or |
| 12 | * modify it under the terms of the GNU General Public License as |
| 13 | * published by the Free Software Foundation; either version 2 of the |
| 14 | * License, or (at your option) any later version. |
| 15 | * |
| 16 | * This file is distributed in the hope that it will be useful, |
| 17 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 18 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 19 | * GNU General Public License for more details. |
| 20 | * |
| 21 | * Or, alternatively, |
| 22 | * |
| 23 | * b) Permission is hereby granted, free of charge, to any person |
| 24 | * obtaining a copy of this software and associated documentation |
| 25 | * files (the "Software"), to deal in the Software without |
| 26 | * restriction, including without limitation the rights to use, |
| 27 | * copy, modify, merge, publish, distribute, sublicense, and/or |
| 28 | * sell copies of the Software, and to permit persons to whom the |
| 29 | * Software is furnished to do so, subject to the following |
| 30 | * conditions: |
| 31 | * |
| 32 | * The above copyright notice and this permission notice shall be |
| 33 | * included in all copies or substantial portions of the Software. |
| 34 | * |
| 35 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
| 36 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES |
| 37 | * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
| 38 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT |
| 39 | * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, |
| 40 | * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
| 41 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR |
| 42 | * OTHER DEALINGS IN THE SOFTWARE. |
| 43 | */ |
| 44 | |
| 45 | &io_domains { |
| 46 | sdcard-supply = <&vccio_sd>; |
| 47 | }; |
| 48 | |
| 49 | &pinctrl { |
| 50 | sdmmc { |
| 51 | /* |
| 52 | * We run sdmmc at max speed; bump up drive strength. |
| 53 | * We also have external pulls, so disable the internal ones. |
| 54 | */ |
| 55 | sdmmc_bus4: sdmmc-bus4 { |
| 56 | rockchip,pins = <6 16 RK_FUNC_1 &pcfg_pull_none_drv_8ma>, |
| 57 | <6 17 RK_FUNC_1 &pcfg_pull_none_drv_8ma>, |
| 58 | <6 18 RK_FUNC_1 &pcfg_pull_none_drv_8ma>, |
| 59 | <6 19 RK_FUNC_1 &pcfg_pull_none_drv_8ma>; |
| 60 | }; |
| 61 | |
| 62 | sdmmc_clk: sdmmc-clk { |
| 63 | rockchip,pins = <6 20 RK_FUNC_1 &pcfg_pull_none_drv_8ma>; |
| 64 | }; |
| 65 | |
| 66 | sdmmc_cmd: sdmmc-cmd { |
| 67 | rockchip,pins = <6 21 RK_FUNC_1 &pcfg_pull_none_drv_8ma>; |
| 68 | }; |
| 69 | |
| 70 | /* |
| 71 | * Builtin CD line is hooked to ground to prevent JTAG at boot |
| 72 | * (and also to get the voltage rail correct). |
| 73 | * Configure gpio6_C6 as GPIO so dw_mmc builtin CD doesn't |
| 74 | * think there's a card inserted |
| 75 | */ |
| 76 | sdmmc_cd_disabled: sdmmc-cd-disabled { |
| 77 | rockchip,pins = <6 22 RK_FUNC_GPIO &pcfg_pull_none>; |
| 78 | }; |
| 79 | |
| 80 | /* This is where we actually hook up CD */ |
| 81 | sdmmc_cd_gpio: sdmmc-cd-gpio { |
| 82 | rockchip,pins = <7 5 RK_FUNC_GPIO &pcfg_pull_none>; |
| 83 | }; |
| 84 | }; |
| 85 | }; |
| 86 | |
| 87 | &rk808 { |
| 88 | vcc9-supply = <&vcc_5v>; |
| 89 | |
| 90 | regulators { |
| 91 | vccio_sd: LDO_REG4 { |
| 92 | regulator-name = "vccio_sd"; |
| 93 | regulator-min-microvolt = <3300000>; |
| 94 | regulator-max-microvolt = <3300000>; |
| 95 | regulator-state-mem { |
| 96 | regulator-on-in-suspend; |
| 97 | }; |
| 98 | }; |
| 99 | |
| 100 | vcc33_sd: LDO_REG5 { |
| 101 | regulator-name = "vcc33_sd"; |
| 102 | regulator-min-microvolt = <3300000>; |
| 103 | regulator-max-microvolt = <3300000>; |
| 104 | regulator-state-mem { |
| 105 | regulator-on-in-suspend; |
| 106 | }; |
| 107 | }; |
| 108 | }; |
| 109 | }; |
| 110 | |
| 111 | &sdmmc { |
| 112 | status = "okay"; |
| 113 | |
| 114 | bus-width = <4>; |
| 115 | cap-mmc-highspeed; |
| 116 | cap-sd-highspeed; |
| 117 | card-detect-delay = <200>; |
| 118 | cd-gpios = <&gpio7 5 GPIO_ACTIVE_LOW>; |
| 119 | num-slots = <1>; |
| 120 | vmmc-supply = <&vcc33_sd>; |
| 121 | vqmmc-supply = <&vccio_sd>; |
| 122 | }; |