From: Michal Simek <michal.simek@xilinx.com>
Date: Mon, 14 Mar 2022 14:26:11 +0000 (+0100)
Subject: arm64: zynqmp: Add pinctrl emmc description to SM-K26
X-Git-Url: http://git.dujemihanovic.xyz/login.html?a=commitdiff_plain;h=0ac03fbab51c72fa978569a831c001c4ddad8e2a;p=u-boot.git

arm64: zynqmp: Add pinctrl emmc description to SM-K26

Production SOM has emmc on it and make sense to describe pin description to
be able use EMMC if it is not configured via psu_init.
(Still some regs are not handled but this is one step in that direction)

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Link: https://lore.kernel.org/r/3545a0f08d342de98efc82b78f5725eda091555a.1647267969.git.michal.simek@xilinx.com
---

diff --git a/arch/arm/dts/zynqmp-sm-k26-revA.dts b/arch/arm/dts/zynqmp-sm-k26-revA.dts
index d242f8712b..14ab31685d 100644
--- a/arch/arm/dts/zynqmp-sm-k26-revA.dts
+++ b/arch/arm/dts/zynqmp-sm-k26-revA.dts
@@ -14,6 +14,7 @@
 #include <dt-bindings/input/input.h>
 #include <dt-bindings/gpio/gpio.h>
 #include <dt-bindings/phy/phy.h>
+#include <dt-bindings/pinctrl/pinctrl-zynqmp.h>
 
 / {
 	model = "ZynqMP SM-K26 Rev1/B/A";
@@ -92,6 +93,23 @@
 	status = "okay";
 };
 
+&pinctrl0 {
+	status = "okay";
+	pinctrl_sdhci0_default: sdhci0-default {
+		conf {
+			groups = "sdio0_0_grp";
+			slew-rate = <SLEW_RATE_SLOW>;
+			power-source = <IO_STANDARD_LVCMOS18>;
+			bias-disable;
+		};
+
+		mux {
+			groups = "sdio0_0_grp";
+			function = "sdio0";
+		};
+	};
+};
+
 &qspi { /* MIO 0-5 - U143 */
 	status = "okay";
 	flash@0 { /* MT25QU512A */
@@ -185,6 +203,8 @@
 
 &sdhci0 { /* MIO13-23 - 16GB emmc MTFC16GAPALBH-IT - U133A */
 	status = "okay";
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_sdhci0_default>;
 	non-removable;
 	disable-wp;
 	bus-width = <8>;