hollalinux
/
linux-sg2042
mirror of https://github.com/sophgo/linux-riscv.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

arm64: dts: qcom: rb5: Add support for uSD card 

Add support for uSD card on RB5 using the SDHC2 interface.

Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
[DB: disabled 1.8V support to get SDHC to work]
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20201028190955.1264526-2-dmitry.baryshkov@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
This commit is contained in:
Manivannan Sadhasivam 2020-10-28 22:09:55 +03:00 committed by Bjorn Andersson
parent c4cf0300be
commit 53a8ccf1c7
1 changed files with 41 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

41
arch/arm64/boot/dts/qcom/qrb5165-rb5.dts
View File

@ -18,6 +18,7 @@
aliases {
serial0 = &uart12;
sdhc2 = &sdhc_2;
};
chosen {
@ -475,6 +476,20 @@
status = "okay";
};
&sdhc_2 {
status = "okay";
pinctrl-names = "default";
pinctrl-0 = <&sdc2_default_state &sdc2_card_det_n>;
vmmc-supply = <&vreg_l9c_2p96>;
vqmmc-supply = <&vreg_l6c_2p96>;
cd-gpios = <&tlmm 77 GPIO_ACTIVE_LOW>;
bus-width = <4>;
/* there seem to be issues with HS400-1.8V mode, so disable it */
no-1-8-v;
no-sdio;
no-emmc;
};
/* CAN */
&spi0 {
status = "okay";
@ -663,6 +678,32 @@
"HST_BLE_SNS_UART_RX",
"HST_WLAN_UART_TX",
"HST_WLAN_UART_RX";
sdc2_default_state: sdc2-default {
clk {
pins = "sdc2_clk";
bias-disable;
drive-strength = <16>;
};
cmd {
pins = "sdc2_cmd";
bias-pull-up;
drive-strength = <16>;
};
data {
pins = "sdc2_data";
bias-pull-up;
drive-strength = <16>;
};
};
sdc2_card_det_n: sd-card-det-n {
pins = "gpio77";
function = "gpio";
bias-pull-up;
};
};
&uart12 {