arm64: dts: qcom: sa8155p-adp: Add support for uSD card

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>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20220403144151.92572-3-bhupesh.sharma@linaro.org

diff --git a/arch/arm64/boot/dts/qcom/sa8155p-adp.dts b/arch/arm64/boot/dts/qcom/sa8155p-adp.dts
index 676e4fe..8e78112 100644 (file)
--- a/arch/arm64/boot/dts/qcom/sa8155p-adp.dts
+++ b/arch/arm64/boot/dts/qcom/sa8155p-adp.dts
@@ -317,6 +317,20 @@
        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";
 };
@@ -405,6 +419,60 @@
 &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";