linux-kernel - [PATCH v7 05/10] arm64: dts: imx8qxp: add flexcan in adma

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Message-Id: <20230208065641.23544-6-marcel@ziswiler.com>
Date:   Wed,  8 Feb 2023 07:56:36 +0100
From:   Marcel Ziswiler <marcel@...wiler.com>
To:     devicetree@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org, Liu Ying <victor.liu@....com>,
        linux-imx@....com, linux-arm-kernel@...ts.infradead.org,
        Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
        Joakim Zhang <qiangqing.zhang@....com>,
        Marcel Ziswiler <marcel.ziswiler@...adex.com>,
        Alexander Stein <alexander.stein@...tq-group.com>,
        Fabio Estevam <festevam@...il.com>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        Rob Herring <robh+dt@...nel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Shawn Guo <shawnguo@...nel.org>
Subject: [PATCH v7 05/10] arm64: dts: imx8qxp: add flexcan in adma

From: Joakim Zhang <qiangqing.zhang@....com>

Add FlexCAN decive in adma subsystem.

Signed-off-by: Joakim Zhang <qiangqing.zhang@....com>
Signed-off-by: Marcel Ziswiler <marcel.ziswiler@...adex.com>
Tested-by: Alexander Stein <alexander.stein@...tq-group.com> # TQMa8XQP

---

(no changes since v6)

Changes in v6:
- Add Alexander's tested-by. Thanks!

Changes in v4:
- New patch combining the following downstream patches:
  commit e8fe3f57223a ("arm64: dts: imx8qxp: add FlexCAN in adma")
  commit 4e90361f1ed3 ("arm64: dts: imx8qxp: add multi-pd support for CAN1/2")
  commit 899f516e61f8 ("arm64: dts: imx8: dma: fully switched to new clk binding")
  commit 8a28ca15a058 ("arm64: dts: imx8qxp: drop multi-pd for CAN device")
  commit c493402197dd ("arm64: dts: imx8: update CAN fsl,clk-source and fsl,scu-index property")

 .../arm64/boot/dts/freescale/imx8-ss-dma.dtsi | 72 +++++++++++++++++++
 1 file changed, 72 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/imx8-ss-dma.dtsi b/arch/arm64/boot/dts/freescale/imx8-ss-dma.dtsi
index 6ccf926b77a5..2dce8f2ee3ea 100644
--- a/arch/arm64/boot/dts/freescale/imx8-ss-dma.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8-ss-dma.dtsi
@@ -298,6 +298,65 @@ adc1: adc@...90000 {
 		status = "disabled";
 	};
 
+	flexcan1: can@...d0000 {
+		compatible = "fsl,imx8qm-flexcan";
+		reg = <0x5a8d0000 0x10000>;
+		interrupts = <GIC_SPI 235 IRQ_TYPE_LEVEL_HIGH>;
+		interrupt-parent = <&gic>;
+		clocks = <&can0_lpcg 1>,
+			 <&can0_lpcg 0>;
+		clock-names = "ipg", "per";
+		assigned-clocks = <&clk IMX_SC_R_CAN_0 IMX_SC_PM_CLK_PER>;
+		assigned-clock-rates = <40000000>;
+		power-domains = <&pd IMX_SC_R_CAN_0>;
+		/* SLSlice[4] */
+		fsl,clk-source = /bits/ 8 <0>;
+		fsl,scu-index = /bits/ 8 <0>;
+		status = "disabled";
+	};
+
+	flexcan2: can@...e0000 {
+		compatible = "fsl,imx8qm-flexcan";
+		reg = <0x5a8e0000 0x10000>;
+		interrupts = <GIC_SPI 236 IRQ_TYPE_LEVEL_HIGH>;
+		interrupt-parent = <&gic>;
+		/* CAN0 clock and PD is shared among all CAN instances as
+		 * CAN1 shares CAN0's clock and to enable CAN0's clock it
+		 * has to be powered on.
+		 */
+		clocks = <&can0_lpcg 1>,
+			 <&can0_lpcg 0>;
+		clock-names = "ipg", "per";
+		assigned-clocks = <&clk IMX_SC_R_CAN_0 IMX_SC_PM_CLK_PER>;
+		assigned-clock-rates = <40000000>;
+		power-domains = <&pd IMX_SC_R_CAN_1>;
+		/* SLSlice[4] */
+		fsl,clk-source = /bits/ 8 <0>;
+		fsl,scu-index = /bits/ 8 <1>;
+		status = "disabled";
+	};
+
+	flexcan3: can@...f0000 {
+		compatible = "fsl,imx8qm-flexcan";
+		reg = <0x5a8f0000 0x10000>;
+		interrupts = <GIC_SPI 237 IRQ_TYPE_LEVEL_HIGH>;
+		interrupt-parent = <&gic>;
+		/* CAN0 clock and PD is shared among all CAN instances as
+		 * CAN2 shares CAN0's clock and to enable CAN0's clock it
+		 * has to be powered on.
+		 */
+		clocks = <&can0_lpcg 1>,
+			 <&can0_lpcg 0>;
+		clock-names = "ipg", "per";
+		assigned-clocks = <&clk IMX_SC_R_CAN_0 IMX_SC_PM_CLK_PER>;
+		assigned-clock-rates = <40000000>;
+		power-domains = <&pd IMX_SC_R_CAN_2>;
+		/* SLSlice[4] */
+		fsl,clk-source = /bits/ 8 <0>;
+		fsl,scu-index = /bits/ 8 <2>;
+		status = "disabled";
+	};
+
 	i2c0_lpcg: clock-controller@...00000 {
 		compatible = "fsl,imx8qxp-lpcg";
 		reg = <0x5ac00000 0x10000>;
@@ -369,4 +428,17 @@ adc1_lpcg: clock-controller@...90000 {
 				     "adc1_lpcg_ipg_clk";
 		power-domains = <&pd IMX_SC_R_ADC_1>;
 	};
+
+	can0_lpcg: clock-controller@...d0000 {
+		compatible = "fsl,imx8qxp-lpcg";
+		reg = <0x5acd0000 0x10000>;
+		#clock-cells = <1>;
+		clocks = <&clk IMX_SC_R_CAN_0 IMX_SC_PM_CLK_PER>,
+			 <&dma_ipg_clk>, <&dma_ipg_clk>;
+		clock-indices = <IMX_LPCG_CLK_0>, <IMX_LPCG_CLK_4>, <IMX_LPCG_CLK_5>;
+		clock-output-names = "can0_lpcg_pe_clk",
+				     "can0_lpcg_ipg_clk",
+				     "can0_lpcg_chi_clk";
+		power-domains = <&pd IMX_SC_R_CAN_0>;
+	};
 };
-- 
2.36.1