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Subject[PATCH 2/2] arm64: dts: qcom: sa8155p-adp: Add support for uSD card
Date
Add support for uSD card on SA8155p-ADP board using the SDHC2
interface.

Cc: Bjorn Andersson <bjorn.andersson@linaro.org>
Cc: Rob Herring <robh@kernel.org>
Signed-off-by: Bhupesh Sharma <bhupesh.sharma@linaro.org>
---
arch/arm64/boot/dts/qcom/sa8155p-adp.dts | 68 ++++++++++++++++++++++++
1 file changed, 68 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sa8155p-adp.dts b/arch/arm64/boot/dts/qcom/sa8155p-adp.dts
index 8756c2b25c7e..b561a8139cb9 100644
--- a/arch/arm64/boot/dts/qcom/sa8155p-adp.dts
+++ b/arch/arm64/boot/dts/qcom/sa8155p-adp.dts
@@ -317,6 +317,20 @@ &remoteproc_cdsp {
firmware-name = "qcom/sa8155p/cdsp.mdt";
};

+&sdhc_2 {
+ status = "okay";
+
+ cd-gpios = <&tlmm 4 GPIO_ACTIVE_LOW>;
+ pinctrl-names = "default", "sleep";
+ pinctrl-0 = <&sdc2_on>;
+ pinctrl-1 = <&sdc2_off>;
+ vqmmc-supply = <&vreg_l13c_2p96>; /* IO line power */
+ vmmc-supply = <&vreg_l17a_2p96>; /* Card power line */
+ bus-width = <4>;
+ no-sdio;
+ no-emmc;
+};
+
&uart2 {
status = "okay";
};
@@ -390,6 +404,60 @@ &usb_2_qmpphy {
&tlmm {
gpio-reserved-ranges = <0 4>;

+ sdc2_on: sdc2_on {
+ clk {
+ pins = "sdc2_clk";
+ bias-disable; /* No pull */
+ drive-strength = <16>; /* 16 MA */
+ };
+
+ cmd {
+ pins = "sdc2_cmd";
+ bias-pull-up; /* pull up */
+ drive-strength = <16>; /* 16 MA */
+ };
+
+ data {
+ pins = "sdc2_data";
+ bias-pull-up; /* pull up */
+ drive-strength = <16>; /* 16 MA */
+ };
+
+ sd-cd {
+ pins = "gpio96";
+ function = "gpio";
+ bias-pull-up; /* pull up */
+ drive-strength = <2>; /* 2 MA */
+ };
+ };
+
+ sdc2_off: sdc2_off {
+ clk {
+ pins = "sdc2_clk";
+ bias-disable; /* No pull */
+ drive-strength = <2>; /* 2 MA */
+ };
+
+ cmd {
+ pins = "sdc2_cmd";
+ bias-pull-up; /* pull up */
+ drive-strength = <2>; /* 2 MA */
+ };
+
+ data {
+ pins = "sdc2_data";
+ bias-pull-up; /* pull up */
+ drive-strength = <2>; /* 2 MA */
+ };
+
+ sd-cd {
+ pins = "gpio96";
+ function = "gpio";
+ bias-pull-up; /* pull up */
+ drive-strength = <2>; /* 2 MA */
+ };
+ };
+
usb2phy_ac_en1_default: usb2phy_ac_en1_default {
mux {
pins = "gpio113";
--
2.35.1
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