The R-Car V3U does support RPC interface, however the support for it is
missing in upstream Linux DTs as of commit 9f4ad9e425a1 ("Linux 5.12"),
add the node into u-boot.dtsi to let U-Boot access the SPI NOR or HF.
Signed-off-by: Marek Vasut <marek.vasut+rene...@gmail.com>
---
arch/arm/dts/r8a779a0-u-boot.dtsi | 13 +++++++++++++
1 file changed, 13 insertions(+)
diff --git a/arch/arm/dts/r8a779a0-u-boot.dtsi
b/arch/arm/dts/r8a779a0-u-boot.dtsi
index f6101289e8..83dbe3f20e 100644
--- a/arch/arm/dts/r8a779a0-u-boot.dtsi
+++ b/arch/arm/dts/r8a779a0-u-boot.dtsi
@@ -7,6 +7,19 @@
#include "r8a779x-u-boot.dtsi"
+/ {
+ soc {
+ rpc: spi@ee200000 {
+ compatible = "renesas,rpc-r8a779a0",
"renesas,rcar-gen3-rpc";
+ reg = <0 0xee200000 0 0x200>, <0 0x08000000 0
0x04000000>;
+ clocks = <&cpg CPG_MOD 629>;
+ bank-width = <2>;
+ num-cs = <1>;
+ status = "disabled";
+ };
+ };
+};
+
&extalr_clk {
u-boot,dm-pre-reloc;
};
--
2.30.2
