linux-kernel - [PATCH 07/12] arm64: dts: hi3660: Add uarts nodes

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Message-Id: <20170517083745.24479-8-guodong.xu@linaro.org>
Date:   Wed, 17 May 2017 16:37:40 +0800
From:   Guodong Xu <guodong.xu@...aro.org>
To:     robh+dt@...nel.org, xuwei5@...ilicon.com, catalin.marinas@....com,
        will.deacon@....com, wangkefeng.wang@...wei.com,
        puck.chen@...ilicon.com, xuejiancheng@...ilicon.com,
        devicetree@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        Wang Xiaoyin <hw.wangxiaoyin@...ilicon.com>,
        Guodong Xu <guodong.xu@...aro.org>
Subject: [PATCH 07/12] arm64: dts: hi3660: Add uarts nodes

From: Chen Feng <puck.chen@...ilicon.com>

Add nodes uart0 to uart4 and uart6 for hi3660 SoC.
Enable uart3 and uart6, disable uart5, in hikey960 board dts.

On HiKey960:
 - UART6 is used as default console, and is wired out through low speed
         expansion connector.
 - UART3 has RTS/CTS hardware handshake, and is wired out through low
         speed expansion connector.
 - UART5 is not used in commercial launched boards. So disable it.
 - UART4 is connected to Bluetooth, WL1837.

Signed-off-by: Chen Feng <puck.chen@...ilicon.com>
Signed-off-by: Wang Xiaoyin <hw.wangxiaoyin@...ilicon.com>
Signed-off-by: Guodong Xu <guodong.xu@...aro.org>
Reviewed-by: Zhangfei Gao <zhangfei.gao@...ilicon.com>
---
 arch/arm64/boot/dts/hisilicon/hi3660-hikey960.dts | 18 +++++--
 arch/arm64/boot/dts/hisilicon/hi3660.dtsi         | 60 +++++++++++++++++++++++
 2 files changed, 73 insertions(+), 5 deletions(-)

diff --git a/arch/arm64/boot/dts/hisilicon/hi3660-hikey960.dts b/arch/arm64/boot/dts/hisilicon/hi3660-hikey960.dts
index f685b1e..513c496 100644
--- a/arch/arm64/boot/dts/hisilicon/hi3660-hikey960.dts
+++ b/arch/arm64/boot/dts/hisilicon/hi3660-hikey960.dts
@@ -15,12 +15,16 @@
 	compatible = "hisilicon,hi3660-hikey960", "hisilicon,hi3660";
 
 	aliases {
-		serial5 = &uart5;       /* console UART */
+		serial0 = &uart0;
+		serial1 = &uart1;
+		serial2 = &uart2;
+		serial3 = &uart3;
+		serial4 = &uart4;
+		serial5 = &uart5;
+		serial6 = &uart6;
 	};
 
-	chosen {
-		stdout-path = "serial5:115200n8";
-	};
+	chosen {};
 
 	memory@0 {
 		device_type = "memory";
@@ -47,6 +51,10 @@
 	status = "okay";
 };
 
-&uart5 {
+&uart3 {
+	status = "okay";
+};
+
+&uart6 {
 	status = "okay";
 };
diff --git a/arch/arm64/boot/dts/hisilicon/hi3660.dtsi b/arch/arm64/boot/dts/hisilicon/hi3660.dtsi
index 3bea0d2..0951a29 100644
--- a/arch/arm64/boot/dts/hisilicon/hi3660.dtsi
+++ b/arch/arm64/boot/dts/hisilicon/hi3660.dtsi
@@ -242,6 +242,56 @@
 			status = "disabled";
 		};
 
+		uart0: serial@...02000 {
+			compatible = "arm,pl011", "arm,primecell";
+			reg = <0x0 0xfdf02000 0x0 0x1000>;
+			interrupts = <GIC_SPI 74 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&crg_ctrl HI3660_CLK_MUX_UART0>,
+				 <&crg_ctrl HI3660_PCLK>;
+			clock-names = "uartclk", "apb_pclk";
+			status = "disabled";
+		};
+
+		uart1: serial@...00000 {
+			compatible = "arm,pl011", "arm,primecell";
+			reg = <0x0 0xfdf00000 0x0 0x1000>;
+			interrupts = <GIC_SPI 75 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&crg_ctrl HI3660_CLK_GATE_UART1>,
+				 <&crg_ctrl HI3660_CLK_GATE_UART1>;
+			clock-names = "uartclk", "apb_pclk";
+			status = "disabled";
+		};
+
+		uart2: serial@...03000 {
+			compatible = "arm,pl011", "arm,primecell";
+			reg = <0x0 0xfdf03000 0x0 0x1000>;
+			interrupts = <GIC_SPI 76 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&crg_ctrl HI3660_CLK_GATE_UART2>,
+				 <&crg_ctrl HI3660_PCLK>;
+			clock-names = "uartclk", "apb_pclk";
+			status = "disabled";
+		};
+
+		uart3: serial@...74000 {
+			compatible = "arm,pl011", "arm,primecell";
+			reg = <0x0 0xffd74000 0x0 0x1000>;
+			interrupts = <GIC_SPI 114 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&crg_ctrl HI3660_FACTOR_UART3>,
+				 <&crg_ctrl HI3660_PCLK>;
+			clock-names = "uartclk", "apb_pclk";
+			status = "disabled";
+		};
+
+		uart4: serial@...01000 {
+			compatible = "arm,pl011", "arm,primecell";
+			reg = <0x0 0xfdf01000 0x0 0x1000>;
+			interrupts = <GIC_SPI 77 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&crg_ctrl HI3660_CLK_GATE_UART4>,
+				 <&crg_ctrl HI3660_CLK_GATE_UART4>;
+			clock-names = "uartclk", "apb_pclk";
+			status = "disabled";
+		};
+
 		uart5: serial@...05000 {
 			compatible = "arm,pl011", "arm,primecell";
 			reg = <0x0 0xfdf05000 0x0 0x1000>;
@@ -252,6 +302,16 @@
 			status = "disabled";
 		};
 
+		uart6: serial@...32000 {
+			compatible = "arm,pl011", "arm,primecell";
+			reg = <0x0 0xfff32000 0x0 0x1000>;
+			interrupts = <GIC_SPI 79 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&crg_ctrl HI3660_CLK_UART6>,
+				 <&crg_ctrl HI3660_PCLK>;
+			clock-names = "uartclk", "apb_pclk";
+			status = "disabled";
+		};
+
 		gpio0: gpio@...0b000 {
 			compatible = "arm,pl061", "arm,primecell";
 			reg = <0 0xe8a0b000 0 0x1000>;
-- 
2.10.2