[PATCH] arm64: dts: qcom: ipq9574: Enable eMMC variant

Varadarajan Narayanan
2026-01-02T10:46:47Z

RDP433 can have NAND or eMMC based on a board level rework. Since the
same GPIOS are used for both the interfaces, only one of them can be
used. Add a new DTS file to disable NAND and enable eMMC.

Signed-off-by: Varadarajan Narayanan <varadarajan.narayanan@oss.qualcomm.com>
---
arch/arm64/boot/dts/qcom/Makefile | 2 +-
.../boot/dts/qcom/ipq9574-rdp-common.dtsi | 32 +++++++++++++++++++
.../boot/dts/qcom/ipq9574-rdp433-emmc.dts | 26 +++++++++++++++
3 files changed, 59 insertions(+), 1 deletion(-)
create mode 100644 arch/arm64/boot/dts/qcom/ipq9574-rdp433-emmc.dts

diff --git a/arch/arm64/boot/dts/qcom/Makefile b/arch/arm64/boot/dts/qcom/Makefile
index 6f34d5ed331c..d5fe12ef4300 100644
--- a/arch/arm64/boot/dts/qcom/Makefile
+++ b/arch/arm64/boot/dts/qcom/Makefile
@@ -26,7 +26,7 @@ dtb-$(CONFIG_ARCH_QCOM) += ipq8074-hk01.dtb
dtb-$(CONFIG_ARCH_QCOM) += ipq8074-hk10-c1.dtb
dtb-$(CONFIG_ARCH_QCOM) += ipq8074-hk10-c2.dtb
dtb-$(CONFIG_ARCH_QCOM) += ipq9574-rdp418.dtb
-dtb-$(CONFIG_ARCH_QCOM) += ipq9574-rdp433.dtb
+dtb-$(CONFIG_ARCH_QCOM) += ipq9574-rdp433.dtb ipq9574-rdp433-emmc.dtb
dtb-$(CONFIG_ARCH_QCOM) += ipq9574-rdp449.dtb
dtb-$(CONFIG_ARCH_QCOM) += ipq9574-rdp453.dtb
dtb-$(CONFIG_ARCH_QCOM) += ipq9574-rdp454.dtb
diff --git a/arch/arm64/boot/dts/qcom/ipq9574-rdp-common.dtsi b/arch/arm64/boot/dts/qcom/ipq9574-rdp-common.dtsi
index bdb396afb992..e4ae79b2fcd9 100644
--- a/arch/arm64/boot/dts/qcom/ipq9574-rdp-common.dtsi
+++ b/arch/arm64/boot/dts/qcom/ipq9574-rdp-common.dtsi
@@ -169,6 +169,38 @@ data-pins {
bias-disable;
};
};
+
+ sdc_default_state: sdc-default-state {
+ clk-pins {
+ pins = "gpio5";
+ function = "sdc_clk";
+ drive-strength = <8>;
+ bias-disable;
+ };
+
+ cmd-pins {
+ pins = "gpio4";
+ function = "sdc_cmd";
+ drive-strength = <8>;
+ bias-pull-up;
+ };
+
+ data-pins {
+ pins = "gpio0", "gpio1", "gpio2",
+ "gpio3", "gpio6", "gpio7",
+ "gpio8", "gpio9";
+ function = "sdc_data";
+ drive-strength = <8>;
+ bias-pull-up;
+ };
+
+ rclk-pins {
+ pins = "gpio10";
+ function = "sdc_rclk";
+ drive-strength = <8>;
+ bias-pull-down;
+ };
+ };
};

&qpic_bam {
diff --git a/arch/arm64/boot/dts/qcom/ipq9574-rdp433-emmc.dts b/arch/arm64/boot/dts/qcom/ipq9574-rdp433-emmc.dts
new file mode 100644
index 000000000000..ffd96b1b1c65
--- /dev/null
+++ b/arch/arm64/boot/dts/qcom/ipq9574-rdp433-emmc.dts
@@ -0,0 +1,26 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
+/*
+ * IPQ9574 RDP433 eMMC board variant device tree source
+ *
+ * Copyright (c) Qualcomm Technologies, Inc. and/or its subsidiaries.
+ */
+
+/dts-v1/;
+
+#include "ipq9574-rdp433.dts"
+
+&qpic_nand {
+ status = "disabled";
+};
+
+&sdhc_1 {
+ pinctrl-0 = <&sdc_default_state>;
+ pinctrl-names = "default";
+ mmc-ddr-1_8v;
+ mmc-hs200-1_8v;
+ mmc-hs400-1_8v;
+ mmc-hs400-enhanced-strobe;
+ max-frequency = <384000000>;
+ bus-width = <8>;
+ status = "okay";
+};
--
2.34.1