UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

arm64: dts: rockchip: 'Fix' nanopi4 uSD card detect 

For whatever reason, the sdmmc_dectn function isn't working properly
as-is, and microSD insertion and removal goes unnoticed. Using the pin
as a GPIO interrupt instead is rather noisy without any debouncing, but
is good enough to make it useful until someone feels inclined to figure
out how the vendor kernel/firmware gets the dedicated function to work
with no obvious difference in the pinmux/GRF configuration. Let's also
take the opportunity to tweak the node name so that all related pins
end up grouped together in the compiled DTB.

Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
This commit is contained in:
Robin Murphy 2019-01-14 12:05:34 +00:00 committed by Heiko Stuebner
parent 95658e21b1
commit 10f595eedc
1 changed files with 12 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

19
arch/arm64/boot/dts/rockchip/rk3399-nanopi4.dtsi
View File

@ -501,17 +501,21 @@
};
};
sd {
sdmmc0_pwr_h: sdmmc0-pwr-h {
rockchip,pins = <0 RK_PA1 RK_FUNC_GPIO &pcfg_pull_none>;
};
};
sdio-pwrseq {
wifi_reg_on_h: wifi-reg_on-h {
rockchip,pins = <0 RK_PB2 RK_FUNC_GPIO &pcfg_pull_none>;
};
};
sdmmc {
sdmmc0_det_l: sdmmc0-det-l {
rockchip,pins = <0 RK_PA7 RK_FUNC_GPIO &pcfg_pull_up>;
};
sdmmc0_pwr_h: sdmmc0-pwr-h {
rockchip,pins = <0 RK_PA1 RK_FUNC_GPIO &pcfg_pull_none>;
};
};
};
&pmu_io_domains {
@ -563,9 +567,10 @@
bus-width = <4>;
cap-sd-highspeed;
cap-mmc-highspeed;
cd-gpios = <&gpio0 RK_PA7 GPIO_ACTIVE_LOW>;
disable-wp;
pinctrl-names = "default";
pinctrl-0 = <&sdmmc_bus4 &sdmmc_cd &sdmmc_clk &sdmmc_cmd>;
pinctrl-0 = <&sdmmc_bus4 &sdmmc_clk &sdmmc_cmd &sdmmc0_det_l>;
sd-uhs-sdr104;
vmmc-supply = <&vcc3v0_sd>;
vqmmc-supply = <&vcc_sdio>;