2 * Google Veyron (and derivatives) fragment for sdmmc cards
4 * Copyright 2015 Google, Inc
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
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.
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.
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
32 * The above copyright notice and this permission notice shall be
33 * included in all copies or substantial portions of the Software.
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.
46 sdcard-supply = <&vccio_sd>;
52 * We run sdmmc at max speed; bump up drive strength.
53 * We also have external pulls, so disable the internal ones.
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>;
62 sdmmc_clk: sdmmc-clk {
63 rockchip,pins = <6 20 RK_FUNC_1 &pcfg_pull_none_drv_8ma>;
66 sdmmc_cmd: sdmmc-cmd {
67 rockchip,pins = <6 21 RK_FUNC_1 &pcfg_pull_none_drv_8ma>;
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
76 sdmmc_cd_disabled: sdmmc-cd-disabled {
77 rockchip,pins = <6 22 RK_FUNC_GPIO &pcfg_pull_none>;
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>;
88 vcc9-supply = <&vcc_5v>;
92 regulator-name = "vccio_sd";
93 regulator-min-microvolt = <1800000>;
94 regulator-max-microvolt = <3300000>;
96 regulator-off-in-suspend;
101 regulator-name = "vcc33_sd";
102 regulator-min-microvolt = <3300000>;
103 regulator-max-microvolt = <3300000>;
104 regulator-state-mem {
105 regulator-off-in-suspend;
117 card-detect-delay = <200>;
118 cd-gpios = <&gpio7 RK_PA5 GPIO_ACTIVE_LOW>;
119 rockchip,default-sample-phase = <90>;
125 vmmc-supply = <&vcc33_sd>;
126 vqmmc-supply = <&vccio_sd>;