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([82.78.167.153]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-3e7607770c2sm6320091f8f.8.2025.09.12.05.24.54 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 12 Sep 2025 05:24:55 -0700 (PDT) From: Claudiu X-Google-Original-From: Claudiu To: bhelgaas@google.com, lpieralisi@kernel.org, kwilczynski@kernel.org, mani@kernel.org, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, geert+renesas@glider.be, magnus.damm@gmail.com, p.zabel@pengutronix.de Cc: claudiu.beznea@tuxon.dev, linux-pci@vger.kernel.org, linux-renesas-soc@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Claudiu Beznea , Wolfram Sang Subject: [PATCH v4 4/6] arm64: dts: renesas: rzg3s-smarc-som: Update dma-ranges for PCIe Date: Fri, 12 Sep 2025 15:24:42 +0300 Message-ID: <20250912122444.3870284-5-claudiu.beznea.uj@bp.renesas.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20250912122444.3870284-1-claudiu.beznea.uj@bp.renesas.com> References: <20250912122444.3870284-1-claudiu.beznea.uj@bp.renesas.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Claudiu Beznea The first 128MB of memory is reserved on this board for secure area. Secure area is a RAM region used by firmware. The rzg3s-smarc-som.dtsi memory node (memory@48000000) excludes the secure area. Update the PCIe dma-ranges property to reflect this. Tested-by: Wolfram Sang Signed-off-by: Claudiu Beznea --- Changes in v4: - updated the patch description with secure area meaning - added reference clock for pcie_port0 Changes in v3: - collected tags Changes in v2: - none, this patch is new arch/arm64/boot/dts/renesas/rzg3s-smarc-som.dtsi | 10 ++++++++++ 1 file changed, 10 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..4c1bb97ac9ed 100644 --- a/arch/arm64/boot/dts/renesas/rzg3s-smarc-som.dtsi +++ b/arch/arm64/boot/dts/renesas/rzg3s-smarc-som.dtsi @@ -214,6 +214,16 @@ &sdhi2 { }; #endif =20 +&pcie { + /* First 128MB is reserved for secure area. */ + dma-ranges =3D <0x42000000 0 0x48000000 0 0x48000000 0x0 0x38000000>; +}; + +&pcie_port0 { + clocks =3D <&versa3 5>; + clock-names =3D "ref"; +}; + &pinctrl { #if SW_CONFIG3 =3D=3D SW_ON eth0-phy-irq-hog { --=20 2.43.0