linux-kernel - [PATCH v4 4/5] arm64: dts: st: Add combophy node on stm32mp251

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Message-ID: <20240828143452.1407532-5-christian.bruel@foss.st.com>
Date: Wed, 28 Aug 2024 16:34:51 +0200
From: Christian Bruel <christian.bruel@...s.st.com>
To: <vkoul@...nel.org>, <kishon@...nel.org>, <robh@...nel.org>,
        <krzk+dt@...nel.org>, <conor+dt@...nel.org>,
        <mcoquelin.stm32@...il.com>, <alexandre.torgue@...s.st.com>,
        <p.zabel@...gutronix.de>
CC: <linux-phy@...ts.infradead.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>,
        Christian Bruel <christian.bruel@...s.st.com>
Subject: [PATCH v4 4/5] arm64: dts: st: Add combophy node on stm32mp251

Add support for COMBOPHY which is used either by the USB3 and PCIe
controller.
USB3 or PCIe mode is done with phy_set_mode().
PCIe internal reference clock can be generated from the internal clock
source or optionnaly from an external 100Mhz pad.

Signed-off-by: Christian Bruel <christian.bruel@...s.st.com>
---
 arch/arm64/boot/dts/st/stm32mp251.dtsi | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/arch/arm64/boot/dts/st/stm32mp251.dtsi b/arch/arm64/boot/dts/st/stm32mp251.dtsi
index 1167cf63d7e8..0d38763d9317 100644
--- a/arch/arm64/boot/dts/st/stm32mp251.dtsi
+++ b/arch/arm64/boot/dts/st/stm32mp251.dtsi
@@ -7,6 +7,7 @@
 #include <dt-bindings/interrupt-controller/arm-gic.h>
 #include <dt-bindings/reset/st,stm32mp25-rcc.h>
 #include <dt-bindings/regulator/st,stm32mp25-regulator.h>
+#include <dt-bindings/phy/phy.h>
 
 / {
 	#address-cells = <2>;
@@ -518,6 +519,22 @@ i2c8: i2c@...40000 {
 				status = "disabled";
 			};
 
+			combophy: phy@...c0000 {
+				compatible = "st,stm32mp25-combophy";
+				reg = <0x480c0000 0x1000>;
+				#phy-cells = <1>;
+				clocks = <&rcc CK_BUS_USB3PCIEPHY>, <&rcc CK_KER_USB3PCIEPHY>;
+				clock-names = "apb", "ker";
+				resets = <&rcc USB3PCIEPHY_R>;
+				reset-names = "phy";
+				st,syscfg = <&syscfg>;
+				access-controllers = <&rifsc 67>;
+				power-domains = <&CLUSTER_PD>;
+				wakeup-source;
+				interrupts-extended = <&exti1 45 IRQ_TYPE_EDGE_FALLING>;
+				status = "disabled";
+			};
+
 			sdmmc1: mmc@...20000 {
 				compatible = "st,stm32mp25-sdmmc2", "arm,pl18x", "arm,primecell";
 				arm,primecell-periphid = <0x00353180>;
-- 
2.34.1