arm64: dts: hisilicon: hi3670: Add UART nodes

Add UART nodes for HiSilicon HI3670 SoC and also relevant pinmux/pinconf
entries.

Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Wei Xu <xuwei5@hisilicon.com>

2 files changed, 229 insertions, 0 deletions

diff --git a/arch/arm64/boot/dts/hisilicon/hi3670.dtsi b/arch/arm64/boot/dts/hisilicon/hi3670.dtsi
index b99f5e0fe577..a5bd6d80b226 100644
--- a/arch/arm64/boot/dts/hisilicon/hi3670.dtsi
+++ b/arch/arm64/boot/dts/hisilicon/hi3670.dtsi
@@ -187,6 +187,76 @@
 			#clock-cells = <1>;
 		};
 
+		uart0: serial@fdf02000 {
+			compatible = "arm,pl011", "arm,primecell";
+			reg = <0x0 0xfdf02000 0x0 0x1000>;
+			interrupts = <GIC_SPI 74 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&crg_ctrl HI3670_CLK_GATE_UART0>,
+				 <&crg_ctrl HI3670_PCLK>;
+			clock-names = "uartclk", "apb_pclk";
+			pinctrl-names = "default";
+			pinctrl-0 = <&uart0_pmx_func &uart0_cfg_func>;
+			status = "disabled";
+		};
+
+		uart1: serial@fdf00000 {
+			compatible = "arm,pl011", "arm,primecell";
+			reg = <0x0 0xfdf00000 0x0 0x1000>;
+			interrupts = <GIC_SPI 75 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&crg_ctrl HI3670_CLK_GATE_UART1>,
+				 <&crg_ctrl HI3670_PCLK>;
+			clock-names = "uartclk", "apb_pclk";
+			pinctrl-names = "default";
+			status = "disabled";
+		};
+
+		uart2: serial@fdf03000 {
+			compatible = "arm,pl011", "arm,primecell";
+			reg = <0x0 0xfdf03000 0x0 0x1000>;
+			interrupts = <GIC_SPI 76 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&crg_ctrl HI3670_CLK_GATE_UART2>,
+				 <&crg_ctrl HI3670_PCLK>;
+			clock-names = "uartclk", "apb_pclk";
+			pinctrl-names = "default";
+			pinctrl-0 = <&uart2_pmx_func &uart2_cfg_func>;
+			status = "disabled";
+		};
+
+		uart3: serial@ffd74000 {
+			compatible = "arm,pl011", "arm,primecell";
+			reg = <0x0 0xffd74000 0x0 0x1000>;
+			interrupts = <GIC_SPI 114 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&crg_ctrl HI3670_CLK_GATE_UART3>,
+				 <&crg_ctrl HI3670_PCLK>;
+			clock-names = "uartclk", "apb_pclk";
+			pinctrl-names = "default";
+			pinctrl-0 = <&uart3_pmx_func &uart3_cfg_func>;
+			status = "disabled";
+		};
+
+		uart4: serial@fdf01000 {
+			compatible = "arm,pl011", "arm,primecell";
+			reg = <0x0 0xfdf01000 0x0 0x1000>;
+			interrupts = <GIC_SPI 77 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&crg_ctrl HI3670_CLK_GATE_UART4>,
+				 <&crg_ctrl HI3670_PCLK>;
+			clock-names = "uartclk", "apb_pclk";
+			pinctrl-names = "default";
+			pinctrl-0 = <&uart4_pmx_func &uart4_cfg_func>;
+			status = "disabled";
+		};
+
+		uart5: serial@fdf05000 {
+			compatible = "arm,pl011", "arm,primecell";
+			reg = <0x0 0xfdf05000 0x0 0x1000>;
+			interrupts = <GIC_SPI 78 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&crg_ctrl HI3670_CLK_GATE_UART5>,
+				 <&crg_ctrl HI3670_PCLK>;
+			clock-names = "uartclk", "apb_pclk";
+			pinctrl-names = "default";
+			status = "disabled";
+		};
+
 		uart6: serial@fff32000 {
 			compatible = "arm,pl011", "arm,primecell";
 			reg = <0x0 0xfff32000 0x0 0x1000>;
@@ -194,6 +264,8 @@
 			clocks = <&crg_ctrl HI3670_CLK_UART6>,
 				 <&crg_ctrl HI3670_PCLK>;
 			clock-names = "uartclk", "apb_pclk";
+			pinctrl-names = "default";
+			pinctrl-0 = <&uart6_pmx_func &uart6_cfg_func>;
 			status = "disabled";
 		};
 
diff --git a/arch/arm64/boot/dts/hisilicon/hikey970-pinctrl.dtsi b/arch/arm64/boot/dts/hisilicon/hikey970-pinctrl.dtsi
index 64fb9a3bd707..67bb52d43619 100644
--- a/arch/arm64/boot/dts/hisilicon/hikey970-pinctrl.dtsi
+++ b/arch/arm64/boot/dts/hisilicon/hikey970-pinctrl.dtsi
@@ -20,6 +20,47 @@
 			pinctrl-single,function-mask = <0x7>;
 			/* pin base, nr pins & gpio function */
 			pinctrl-single,gpio-range = <&range 0 82 0>;
+
+			uart0_pmx_func: uart0_pmx_func {
+				pinctrl-single,pins = <
+					0x054 MUX_M2 /* UART0_RXD */
+					0x058 MUX_M2 /* UART0_TXD */
+				>;
+			};
+
+			uart2_pmx_func: uart2_pmx_func {
+				pinctrl-single,pins = <
+					0x700 MUX_M2 /* UART2_CTS_N */
+					0x704 MUX_M2 /* UART2_RTS_N */
+					0x708 MUX_M2 /* UART2_RXD */
+					0x70c MUX_M2 /* UART2_TXD */
+				>;
+			};
+
+			uart3_pmx_func: uart3_pmx_func {
+				pinctrl-single,pins = <
+					0x064 MUX_M1 /* UART3_CTS_N */
+					0x068 MUX_M1 /* UART3_RTS_N */
+					0x06c MUX_M1 /* UART3_RXD */
+					0x070 MUX_M1 /* UART3_TXD */
+				>;
+			};
+
+			uart4_pmx_func: uart4_pmx_func {
+				pinctrl-single,pins = <
+					0x074 MUX_M1 /* UART4_CTS_N */
+					0x078 MUX_M1 /* UART4_RTS_N */
+					0x07c MUX_M1 /* UART4_RXD */
+					0x080 MUX_M1 /* UART4_TXD */
+				>;
+			};
+
+			uart6_pmx_func: uart6_pmx_func {
+				pinctrl-single,pins = <
+					0x05c MUX_M1 /* UART6_RXD */
+					0x060 MUX_M1 /* UART6_TXD */
+				>;
+			};
 		};
 
 		pmx2: pinmux@e896c800 {
@@ -27,6 +68,122 @@
 			reg = <0x0 0xe896c800 0x0 0x72c>;
 			#pinctrl-cells = <1>;
 			pinctrl-single,register-width = <0x20>;
+
+			uart0_cfg_func: uart0_cfg_func {
+				pinctrl-single,pins = <
+					0x058 0x0 /* UART0_RXD */
+					0x05c 0x0 /* UART0_TXD */
+				>;
+				pinctrl-single,bias-pulldown = <
+					PULL_DIS
+					PULL_DOWN
+					PULL_DIS
+					PULL_DOWN
+				>;
+				pinctrl-single,bias-pullup = <
+					PULL_DIS
+					PULL_UP
+					PULL_DIS
+					PULL_UP
+				>;
+				pinctrl-single,drive-strength = <
+					DRIVE7_04MA DRIVE6_MASK
+				>;
+			};
+
+			uart2_cfg_func: uart2_cfg_func {
+				pinctrl-single,pins = <
+					0x700 0x0 /* UART2_CTS_N */
+					0x704 0x0 /* UART2_RTS_N */
+					0x708 0x0 /* UART2_RXD */
+					0x70c 0x0 /* UART2_TXD */
+				>;
+				pinctrl-single,bias-pulldown = <
+					PULL_DIS
+					PULL_DOWN
+					PULL_DIS
+					PULL_DOWN
+				>;
+				pinctrl-single,bias-pullup = <
+					PULL_DIS
+					PULL_UP
+					PULL_DIS
+					PULL_UP
+				>;
+				pinctrl-single,drive-strength = <
+					DRIVE7_04MA DRIVE6_MASK
+				>;
+			};
+
+			uart3_cfg_func: uart3_cfg_func {
+				pinctrl-single,pins = <
+					0x068 0x0 /* UART3_CTS_N */
+					0x06c 0x0 /* UART3_RTS_N */
+					0x070 0x0 /* UART3_RXD */
+					0x074 0x0 /* UART3_TXD */
+				>;
+				pinctrl-single,bias-pulldown = <
+					PULL_DIS
+					PULL_DOWN
+					PULL_DIS
+					PULL_DOWN
+				>;
+				pinctrl-single,bias-pullup = <
+					PULL_DIS
+					PULL_UP
+					PULL_DIS
+					PULL_UP
+				>;
+				pinctrl-single,drive-strength = <
+					DRIVE7_04MA DRIVE6_MASK
+				>;
+			};
+
+			uart4_cfg_func: uart4_cfg_func {
+				pinctrl-single,pins = <
+					0x078 0x0 /* UART4_CTS_N */
+					0x07c 0x0 /* UART4_RTS_N */
+					0x080 0x0 /* UART4_RXD */
+					0x084 0x0 /* UART4_TXD */
+				>;
+				pinctrl-single,bias-pulldown = <
+					PULL_DIS
+					PULL_DOWN
+					PULL_DIS
+					PULL_DOWN
+				>;
+				pinctrl-single,bias-pullup = <
+					PULL_DIS
+					PULL_UP
+					PULL_DIS
+					PULL_UP
+				>;
+				pinctrl-single,drive-strength = <
+					DRIVE7_04MA DRIVE6_MASK
+				>;
+			};
+
+			uart6_cfg_func: uart6_cfg_func {
+				pinctrl-single,pins = <
+					0x060 0x0 /* UART6_RXD */
+					0x064 0x0 /* UART6_TXD */
+				>;
+				pinctrl-single,bias-pulldown = <
+					PULL_DIS
+					PULL_DOWN
+					PULL_DIS
+					PULL_DOWN
+				>;
+				pinctrl-single,bias-pullup = <
+					PULL_DIS
+					PULL_UP
+					PULL_DIS
+					PULL_UP
+				>;
+				pinctrl-single,drive-strength = <
+					DRIVE7_02MA DRIVE6_MASK
+				>;
+			};
 		};
 
 		pmx5: pinmux@fc182000 {