linux-kernel - [PATCH v4 10/10] arm64: dts: st: Enable PCIe on the stm32mp257f-ev1 board

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Message-ID: <20250128120745.334377-11-christian.bruel@foss.st.com>
Date: Tue, 28 Jan 2025 13:07:45 +0100
From: Christian Bruel <christian.bruel@...s.st.com>
To: <christian.bruel@...s.st.com>, <bhelgaas@...gle.com>,
        <lpieralisi@...nel.org>, <kw@...ux.com>,
        <manivannan.sadhasivam@...aro.org>, <robh@...nel.org>,
        <krzk+dt@...nel.org>, <conor+dt@...nel.org>,
        <mcoquelin.stm32@...il.com>, <alexandre.torgue@...s.st.com>,
        <jingoohan1@...il.com>, <p.zabel@...gutronix.de>,
        <johan+linaro@...nel.org>, <quic_schintav@...cinc.com>,
        <cassel@...nel.org>
CC: <linux-pci@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-stm32@...md-mailman.stormreply.com>,
        <linux-arm-kernel@...ts.infradead.org>, <linux-kernel@...r.kernel.org>,
        <fabrice.gasnier@...s.st.com>
Subject: [PATCH v4 10/10] arm64: dts: st: Enable PCIe on the stm32mp257f-ev1 board

Add PCIe RC and EP support on stm32mp257f-ev1 board, and enable RC mode
by default.

Signed-off-by: Christian Bruel <christian.bruel@...s.st.com>
---
 arch/arm64/boot/dts/st/stm32mp257f-ev1.dts | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/arch/arm64/boot/dts/st/stm32mp257f-ev1.dts b/arch/arm64/boot/dts/st/stm32mp257f-ev1.dts
index 1b88485a62a1..1a3946f47b45 100644
--- a/arch/arm64/boot/dts/st/stm32mp257f-ev1.dts
+++ b/arch/arm64/boot/dts/st/stm32mp257f-ev1.dts
@@ -225,6 +225,28 @@ scmi_vdd_sdcard: regulator@23 {
 	};
 };
 
+&pcie_ep {
+	pinctrl-names = "default", "init";
+	pinctrl-0 = <&pcie_pins_a>;
+	pinctrl-1 = <&pcie_init_pins_a>;
+	reset-gpios = <&gpioj 8 GPIO_ACTIVE_LOW>;
+	status = "disabled";
+};
+
+&pcie_rc {
+	pinctrl-names = "default", "init", "sleep";
+	pinctrl-0 = <&pcie_pins_a>;
+	pinctrl-1 = <&pcie_init_pins_a>;
+	pinctrl-2 = <&pcie_sleep_pins_a>;
+	wakeup-source;
+	status = "okay";
+
+	pcie@0,0 {
+		 reset-gpios = <&gpioj 8 GPIO_ACTIVE_LOW>;
+		 wake-gpios = <&gpioh 5 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>;
+	};
+};
+
 &sdmmc1 {
 	pinctrl-names = "default", "opendrain", "sleep";
 	pinctrl-0 = <&sdmmc1_b4_pins_a>;
-- 
2.34.1