[PATCH 09/11] ARM: dts: renesas: Add Renesas R8A779H0 V4M DT extras

[Marek Vasut]

On 1/21/24 21:52, Paul Barker wrote:
> On 21/01/2024 17:41, Marek Vasut wrote:
>> From: Hai Pham <hai.pham.ud at renesas.com>
>>
>> Add Renesas R8A779H0 V4M DT extras for U-Boot.
>>
>> Signed-off-by: Hai Pham <hai.pham.ud at renesas.com>
>> ---
>> Cc: Paul Barker <paul.barker.ct at bp.renesas.com>
>> ---
>>   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 at 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.