From 0ac03fbab51c72fa978569a831c001c4ddad8e2a Mon Sep 17 00:00:00 2001
From: Michal Simek <michal.simek@xilinx.com>
Date: Mon, 14 Mar 2022 15:26:11 +0100
Subject: [PATCH] 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
---
arch/arm/dts/zynqmp-sm-k26-revA.dts | 20 ++++++++++++++++++++
1 file changed, 20 insertions(+)
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>;
--
2.39.5