mirror of https://gitee.com/openkylin/linux.git
127 lines
3.8 KiB
Plaintext
127 lines
3.8 KiB
Plaintext
/*
|
|
* Google Veyron (and derivatives) fragment for sdmmc cards
|
|
*
|
|
* Copyright 2015 Google, Inc
|
|
*
|
|
* This file is dual-licensed: you can use it either under the terms
|
|
* of the GPL or the X11 license, at your option. Note that this dual
|
|
* licensing only applies to this file, and not this project as a
|
|
* whole.
|
|
*
|
|
* a) This file is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License as
|
|
* published by the Free Software Foundation; either version 2 of the
|
|
* License, or (at your option) any later version.
|
|
*
|
|
* This file is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* Or, alternatively,
|
|
*
|
|
* b) Permission is hereby granted, free of charge, to any person
|
|
* obtaining a copy of this software and associated documentation
|
|
* files (the "Software"), to deal in the Software without
|
|
* restriction, including without limitation the rights to use,
|
|
* copy, modify, merge, publish, distribute, sublicense, and/or
|
|
* sell copies of the Software, and to permit persons to whom the
|
|
* Software is furnished to do so, subject to the following
|
|
* conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be
|
|
* included in all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
|
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
|
|
* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
|
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
|
|
* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
|
|
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
|
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
|
|
* OTHER DEALINGS IN THE SOFTWARE.
|
|
*/
|
|
|
|
&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 16 RK_FUNC_1 &pcfg_pull_none_drv_8ma>,
|
|
<6 17 RK_FUNC_1 &pcfg_pull_none_drv_8ma>,
|
|
<6 18 RK_FUNC_1 &pcfg_pull_none_drv_8ma>,
|
|
<6 19 RK_FUNC_1 &pcfg_pull_none_drv_8ma>;
|
|
};
|
|
|
|
sdmmc_clk: sdmmc-clk {
|
|
rockchip,pins = <6 20 RK_FUNC_1 &pcfg_pull_none_drv_8ma>;
|
|
};
|
|
|
|
sdmmc_cmd: sdmmc-cmd {
|
|
rockchip,pins = <6 21 RK_FUNC_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 22 RK_FUNC_GPIO &pcfg_pull_none>;
|
|
};
|
|
|
|
/* This is where we actually hook up CD */
|
|
sdmmc_cd_gpio: sdmmc-cd-gpio {
|
|
rockchip,pins = <7 5 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>;
|
|
};
|