[PATCH v4 2/7] dts: ipq9574-rdp433-u-boot: add override dtsi

[Varadarajan Narayanan]

Add initial support for the IPQ9574 MMC based RDP platforms.
Define memory layout statically.

Signed-off-by: Varadarajan Narayanan <quic_varada at quicinc.com>
---
v3: Fix comments and give additional details
    No code change

v2: Use upstream and override DT instead of own DT
---
 arch/arm/dts/ipq9574-rdp433-u-boot.dtsi | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)
 create mode 100644 arch/arm/dts/ipq9574-rdp433-u-boot.dtsi

diff --git a/arch/arm/dts/ipq9574-rdp433-u-boot.dtsi b/arch/arm/dts/ipq9574-rdp433-u-boot.dtsi
new file mode 100644
index 0000000000..390e2338d6
--- /dev/null
+++ b/arch/arm/dts/ipq9574-rdp433-u-boot.dtsi
@@ -0,0 +1,25 @@
+// SPDX-License-Identifier: BSD-3-Clause
+/*
+ * Copyright (c) 2025, Qualcomm Innovation Center, Inc. All rights reserved.
+ */
+
+/ {
+	/* Will be removed when SMEM parsing is updated */
+	memory at 40000000 {
+		device_type = "memory";
+		reg = <0x0 0x40000000 0x0 0x40000000>,
+		      <0x0 0x4a500000 0x0 0x00100000>;
+	};
+};
+
+&sdhc_1 {
+	sdhci-caps-mask = <0x0 0x04000000>;
+	sdhci-caps = <0x0 0x04000000>;	/* SDHCI_CAN_VDD_180 */
+
+	/*
+	 * This reset is needed to clear out the settings done by
+	 * previous boot loader. Without this the SDHCI_RESET_ALL
+	 * reset done sdhci_init() times out.
+	 */
+	resets = <&gcc GCC_SDCC_BCR>;
+};
-- 
2.34.1