On 1/21/24 21:52, Paul Barker wrote:
On 21/01/2024 17:41, Marek Vasut wrote:
From: Hai Pham <[email protected]>
Add Renesas R8A779H0 V4M DT extras for U-Boot.
Signed-off-by: Hai Pham <[email protected]>
---
Cc: Paul Barker <[email protected]>
---
arch/arm/dts/r8a779h0-u-boot.dtsi | 27 +++++++++++++++++++++++++++
1 file changed, 27 insertions(+)
create mode 100644 arch/arm/dts/r8a779h0-u-boot.dtsi
diff --git a/arch/arm/dts/r8a779h0-u-boot.dtsi
b/arch/arm/dts/r8a779h0-u-boot.dtsi
new file mode 100644
index 00000000000..b2f7e054eef
--- /dev/null
+++ b/arch/arm/dts/r8a779h0-u-boot.dtsi
@@ -0,0 +1,27 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Device Tree Source extras for U-Boot on R-Car R8A779H0 SoC
+ *
+ * Copyright (C) 2023 Renesas Electronics Corp.
+ */
+
+#include "r8a779x-u-boot.dtsi"
+/ {
+ soc {
+ rpc: spi@ee200000 {
+ compatible = "renesas,r8a779h0-rpc-if",
"renesas,rcar-gen4-rpc-if";
+ reg = <0 0xee200000 0 0x200>, <0 0x08000000 0
0x04000000>;
+ interrupts = <GIC_SPI 225 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cpg CPG_MOD 629>;
+ power-domains = <&sysc R8A779H0_PD_ALWAYS_ON>;
+ resets = <&cpg 629>;
+ bank-width = <2>;
+ num-cs = <1>;
+ status = "disabled";
+ };
Either the commit message or a comment should give some idea why this
node is in a -u-boot.dtsi file instead of the r8a779h0.dtsi file itself.
I suspect this won't be in the initial Linux DT, so its kept as an
extension here, so the GH board can use RPC to access SPI NOR . I
suspect this will go away once the RPC node lands in Linux DT. I will
add comment like that in V2 commit message.
