diff mbox series

[2/7] dts: qcs6490-rb3gen2-u-boot: add override dtsi

Message ID 20240809-b4-rb3gen2-v1-2-7c73fe05b37a@linaro.org
State Superseded
Headers show
Series Qualcomm: add support for SC7280 and the RB3 Gen 2 | expand

Commit Message

Caleb Connolly Aug. 9, 2024, 12:48 a.m. UTC 
For running U-Boot as primary bootloader we must define the memory
layout statically.

Signed-off-by: Caleb Connolly <caleb.connolly@linaro.org>
---
 arch/arm/dts/qcs6490-rb3gen2-u-boot.dtsi | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)
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Patch

diff --git a/arch/arm/dts/qcs6490-rb3gen2-u-boot.dtsi b/arch/arm/dts/qcs6490-rb3gen2-u-boot.dtsi
new file mode 100644
index 000000000000..c3ec4a317f7c
--- /dev/null
+++ b/arch/arm/dts/qcs6490-rb3gen2-u-boot.dtsi
@@ -0,0 +1,23 @@ 
+// SPDX-License-Identifier: BSD-3-Clause
+/*
+ * Copyright (c) 2024 Linaro Ltd.
+ */
+/ {
+	/* When running as the primary bootloader there is no prior
+	 * stage to populate the memory layout for us. We *should*
+	 * have two nodes here, but ABL does NOT like that.
+	 * sooo we're stuck with this.
+	 */
+	memory@80000000 {
+		device_type = "memory";
+		reg = <0 0x80000000 0 0x3A800000>,
+		      <0 0xC0000000 0 0x01800000>,
+		      <0 0xC3400000 0 0x3CC00000>,
+		      <1 0x00000000 1 0x00000000>;
+	};
+};
+
+// RAM Entry 0 : Base 0x0080000000  Size 0x003A800000
+// RAM Entry 1 : Base 0x00C0000000  Size 0x0001800000
+// RAM Entry 2 : Base 0x00C3400000  Size 0x003CC00000
+// RAM Entry 3 : Base 0x0100000000  Size 0x0100000000