Hi, Biju, On 07.07.2025 11:18, Biju Das wrote: > Hi Claudiu, > >> -----Original Message----- >> From: Claudiu <claudiu.beznea@xxxxxxxxx> >> Sent: 04 July 2025 17:14 >> Subject: [PATCH v3 7/9] arm64: dts: renesas: rzg3s-smarc-som: Update dma-ranges for PCIe >> >> From: Claudiu Beznea <claudiu.beznea.uj@xxxxxxxxxxxxxx> >> >> The first 128MB of memory is reserved on this board for secure area. >> Update the PCIe dma-ranges property to reflect this. > > I see R-Car PCIe dma-ranges[1] and [2] maps all possible DDR area supported by the SoC? > Do we need to make board specific as well there? I'm not familiar with R-Car, but if there are ranges reserved for other purposes, I think we should reflect it in board specific device trees. But that would have to be address though a different series as it has nothing to do with enabling the RZ/G3S PCIe support. Thank you, Claudiu > > [1] https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/tree/arch/arm64/boot/dts/renesas/r8a774e1.dtsi?h=next-20250704#n2487 > [2] https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/tree/arch/arm64/boot/dts/renesas/salvator-common.dtsi?h=next-20250704 > > Cheers, > Biju > >> >> Tested-by: Wolfram Sang <wsa+renesas@xxxxxxxxxxxxxxxxxxxx> >> Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@xxxxxxxxxxxxxx> >> --- >> >> Changes in v3: >> - collected tags >> >> Changes in v2: >> - none, this patch is new >> >> arch/arm64/boot/dts/renesas/rzg3s-smarc-som.dtsi | 5 +++++ >> 1 file changed, 5 insertions(+) >> >> diff --git a/arch/arm64/boot/dts/renesas/rzg3s-smarc-som.dtsi b/arch/arm64/boot/dts/renesas/rzg3s- >> smarc-som.dtsi >> index 39845faec894..1b03820a6f02 100644 >> --- a/arch/arm64/boot/dts/renesas/rzg3s-smarc-som.dtsi >> +++ b/arch/arm64/boot/dts/renesas/rzg3s-smarc-som.dtsi >> @@ -214,6 +214,11 @@ &sdhi2 { >> }; >> #endif >> >> +&pcie { >> + /* First 128MB is reserved for secure area. */ >> + dma-ranges = <0x42000000 0 0x48000000 0 0x48000000 0x0 0x38000000>; }; >> + >> &pinctrl { >> #if SW_CONFIG3 == SW_ON >> eth0-phy-irq-hog { >> -- >> 2.43.0 >> >
