sunxi: add support for Allwinner H6 SoC

Allwinner H6 is a new SoC from Allwinner features USB3 and PCIe
interfaces.

This patch adds support for it.

The corresponding DTSI file, from Linux next-20180720, is also
introduced.

Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
Reviewed-by: Jagan Teki <jagan@openedev.com>
Tested-by: Jagan Teki <jagan@amarulasolutions.com>

3 files changed, 306 insertions, 1 deletions

diff --git a/arch/arm/dts/sun50i-h6.dtsi b/arch/arm/dts/sun50i-h6.dtsi
new file mode 100644
index 0000000000..cfa5fffcf6
--- /dev/null
+++ b/arch/arm/dts/sun50i-h6.dtsi
@@ -0,0 +1,288 @@
+// SPDX-License-Identifier: (GPL-2.0+ or MIT)
+/*
+ * Copyright (C) 2017 Icenowy Zheng <icenowy@aosc.io>
+ */
+
+#include <dt-bindings/interrupt-controller/arm-gic.h>
+#include <dt-bindings/clock/sun50i-h6-ccu.h>
+#include <dt-bindings/clock/sun50i-h6-r-ccu.h>
+#include <dt-bindings/reset/sun50i-h6-ccu.h>
+#include <dt-bindings/reset/sun50i-h6-r-ccu.h>
+
+/ {
+	interrupt-parent = <&gic>;
+	#address-cells = <1>;
+	#size-cells = <1>;
+
+	cpus {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		cpu0: cpu@0 {
+			compatible = "arm,cortex-a53", "arm,armv8";
+			device_type = "cpu";
+			reg = <0>;
+			enable-method = "psci";
+		};
+
+		cpu1: cpu@1 {
+			compatible = "arm,cortex-a53", "arm,armv8";
+			device_type = "cpu";
+			reg = <1>;
+			enable-method = "psci";
+		};
+
+		cpu2: cpu@2 {
+			compatible = "arm,cortex-a53", "arm,armv8";
+			device_type = "cpu";
+			reg = <2>;
+			enable-method = "psci";
+		};
+
+		cpu3: cpu@3 {
+			compatible = "arm,cortex-a53", "arm,armv8";
+			device_type = "cpu";
+			reg = <3>;
+			enable-method = "psci";
+		};
+	};
+
+	iosc: internal-osc-clk {
+		#clock-cells = <0>;
+		compatible = "fixed-clock";
+		clock-frequency = <16000000>;
+		clock-accuracy = <300000000>;
+		clock-output-names = "iosc";
+	};
+
+	osc24M: osc24M_clk {
+		#clock-cells = <0>;
+		compatible = "fixed-clock";
+		clock-frequency = <24000000>;
+		clock-output-names = "osc24M";
+	};
+
+	osc32k: osc32k_clk {
+		#clock-cells = <0>;
+		compatible = "fixed-clock";
+		clock-frequency = <32768>;
+		clock-output-names = "osc32k";
+	};
+
+	psci {
+		compatible = "arm,psci-0.2";
+		method = "smc";
+	};
+
+	timer {
+		compatible = "arm,armv8-timer";
+		interrupts = <GIC_PPI 13
+			(GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_HIGH)>,
+			     <GIC_PPI 14
+			(GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_HIGH)>,
+			     <GIC_PPI 11
+			(GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_HIGH)>,
+			     <GIC_PPI 10
+			(GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_HIGH)>;
+	};
+
+	soc {
+		compatible = "simple-bus";
+		#address-cells = <1>;
+		#size-cells = <1>;
+		ranges;
+
+		ccu: clock@3001000 {
+			compatible = "allwinner,sun50i-h6-ccu";
+			reg = <0x03001000 0x1000>;
+			clocks = <&osc24M>, <&osc32k>, <&iosc>;
+			clock-names = "hosc", "losc", "iosc";
+			#clock-cells = <1>;
+			#reset-cells = <1>;
+		};
+
+		gic: interrupt-controller@3021000 {
+			compatible = "arm,gic-400";
+			reg = <0x03021000 0x1000>,
+			      <0x03022000 0x2000>,
+			      <0x03024000 0x2000>,
+			      <0x03026000 0x2000>;
+			interrupts = <GIC_PPI 9 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_HIGH)>;
+			interrupt-controller;
+			#interrupt-cells = <3>;
+		};
+
+		pio: pinctrl@300b000 {
+			compatible = "allwinner,sun50i-h6-pinctrl";
+			reg = <0x0300b000 0x400>;
+			interrupts = <GIC_SPI 51 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 53 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 54 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 59 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&ccu CLK_APB1>, <&osc24M>, <&osc32k>;
+			clock-names = "apb", "hosc", "losc";
+			gpio-controller;
+			#gpio-cells = <3>;
+			interrupt-controller;
+			#interrupt-cells = <3>;
+
+			mmc0_pins: mmc0-pins {
+				pins = "PF0", "PF1", "PF2", "PF3",
+				       "PF4", "PF5";
+				function = "mmc0";
+				drive-strength = <30>;
+				bias-pull-up;
+			};
+
+			mmc2_pins: mmc2-pins {
+				pins = "PC1", "PC4", "PC5", "PC6",
+				       "PC7", "PC8", "PC9", "PC10",
+				       "PC11", "PC12", "PC13", "PC14";
+				function = "mmc2";
+				drive-strength = <30>;
+				bias-pull-up;
+			};
+
+			uart0_ph_pins: uart0-ph {
+				pins = "PH0", "PH1";
+				function = "uart0";
+			};
+		};
+
+		mmc0: mmc@4020000 {
+			compatible = "allwinner,sun50i-h6-mmc",
+				     "allwinner,sun50i-a64-mmc";
+			reg = <0x04020000 0x1000>;
+			clocks = <&ccu CLK_BUS_MMC0>, <&ccu CLK_MMC0>;
+			clock-names = "ahb", "mmc";
+			resets = <&ccu RST_BUS_MMC0>;
+			reset-names = "ahb";
+			interrupts = <GIC_SPI 35 IRQ_TYPE_LEVEL_HIGH>;
+			status = "disabled";
+			#address-cells = <1>;
+			#size-cells = <0>;
+		};
+
+		mmc1: mmc@4021000 {
+			compatible = "allwinner,sun50i-h6-mmc",
+				     "allwinner,sun50i-a64-mmc";
+			reg = <0x04021000 0x1000>;
+			clocks = <&ccu CLK_BUS_MMC1>, <&ccu CLK_MMC1>;
+			clock-names = "ahb", "mmc";
+			resets = <&ccu RST_BUS_MMC1>;
+			reset-names = "ahb";
+			interrupts = <GIC_SPI 36 IRQ_TYPE_LEVEL_HIGH>;
+			status = "disabled";
+			#address-cells = <1>;
+			#size-cells = <0>;
+		};
+
+		mmc2: mmc@4022000 {
+			compatible = "allwinner,sun50i-h6-emmc",
+				     "allwinner,sun50i-a64-emmc";
+			reg = <0x04022000 0x1000>;
+			clocks = <&ccu CLK_BUS_MMC2>, <&ccu CLK_MMC2>;
+			clock-names = "ahb", "mmc";
+			resets = <&ccu RST_BUS_MMC2>;
+			reset-names = "ahb";
+			interrupts = <GIC_SPI 37 IRQ_TYPE_LEVEL_HIGH>;
+			status = "disabled";
+			#address-cells = <1>;
+			#size-cells = <0>;
+		};
+
+		uart0: serial@5000000 {
+			compatible = "snps,dw-apb-uart";
+			reg = <0x05000000 0x400>;
+			interrupts = <GIC_SPI 0 IRQ_TYPE_LEVEL_HIGH>;
+			reg-shift = <2>;
+			reg-io-width = <4>;
+			clocks = <&ccu CLK_BUS_UART0>;
+			resets = <&ccu RST_BUS_UART0>;
+			status = "disabled";
+		};
+
+		uart1: serial@5000400 {
+			compatible = "snps,dw-apb-uart";
+			reg = <0x05000400 0x400>;
+			interrupts = <GIC_SPI 1 IRQ_TYPE_LEVEL_HIGH>;
+			reg-shift = <2>;
+			reg-io-width = <4>;
+			clocks = <&ccu CLK_BUS_UART1>;
+			resets = <&ccu RST_BUS_UART1>;
+			status = "disabled";
+		};
+
+		uart2: serial@5000800 {
+			compatible = "snps,dw-apb-uart";
+			reg = <0x05000800 0x400>;
+			interrupts = <GIC_SPI 2 IRQ_TYPE_LEVEL_HIGH>;
+			reg-shift = <2>;
+			reg-io-width = <4>;
+			clocks = <&ccu CLK_BUS_UART2>;
+			resets = <&ccu RST_BUS_UART2>;
+			status = "disabled";
+		};
+
+		uart3: serial@5000c00 {
+			compatible = "snps,dw-apb-uart";
+			reg = <0x05000c00 0x400>;
+			interrupts = <GIC_SPI 3 IRQ_TYPE_LEVEL_HIGH>;
+			reg-shift = <2>;
+			reg-io-width = <4>;
+			clocks = <&ccu CLK_BUS_UART3>;
+			resets = <&ccu RST_BUS_UART3>;
+			status = "disabled";
+		};
+
+		r_ccu: clock@7010000 {
+			compatible = "allwinner,sun50i-h6-r-ccu";
+			reg = <0x07010000 0x400>;
+			clocks = <&osc24M>, <&osc32k>, <&iosc>,
+				 <&ccu CLK_PLL_PERIPH0>;
+			clock-names = "hosc", "losc", "iosc", "pll-periph";
+			#clock-cells = <1>;
+			#reset-cells = <1>;
+		};
+
+		r_intc: interrupt-controller@7021000 {
+			compatible = "allwinner,sun50i-h6-r-intc",
+				     "allwinner,sun6i-a31-r-intc";
+			interrupt-controller;
+			#interrupt-cells = <2>;
+			reg = <0x07021000 0x400>;
+			interrupts = <GIC_SPI 96 IRQ_TYPE_LEVEL_HIGH>;
+		};
+
+		r_pio: pinctrl@7022000 {
+			compatible = "allwinner,sun50i-h6-r-pinctrl";
+			reg = <0x07022000 0x400>;
+			interrupts = <GIC_SPI 105 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 111 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&r_ccu CLK_R_APB1>, <&osc24M>, <&osc32k>;
+			clock-names = "apb", "hosc", "losc";
+			gpio-controller;
+			#gpio-cells = <3>;
+			interrupt-controller;
+			#interrupt-cells = <3>;
+
+			r_i2c_pins: r-i2c {
+				pins = "PL0", "PL1";
+				function = "s_i2c";
+			};
+		};
+
+		r_i2c: i2c@7081400 {
+			compatible = "allwinner,sun6i-a31-i2c";
+			reg = <0x07081400 0x400>;
+			interrupts = <GIC_SPI 107 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&r_ccu CLK_R_APB2_I2C>;
+			resets = <&r_ccu RST_R_APB2_I2C>;
+			pinctrl-names = "default";
+			pinctrl-0 = <&r_i2c_pins>;
+			status = "disabled";
+			#address-cells = <1>;
+			#size-cells = <0>;
+		};
+	};
+};
diff --git a/arch/arm/mach-sunxi/Kconfig b/arch/arm/mach-sunxi/Kconfig
index 32a46797e2..558363b52d 100644
--- a/arch/arm/mach-sunxi/Kconfig
+++ b/arch/arm/mach-sunxi/Kconfig
@@ -82,6 +82,7 @@ config SUN8I_RSB
 config SUNXI_SRAM_ADDRESS
 	hex
 	default 0x10000 if MACH_SUN9I || MACH_SUN50I || MACH_SUN50I_H5
+	default 0x20000 if MACH_SUN50I_H6
 	default 0x0
 	---help---
 	Older Allwinner SoCs have their mask boot ROM mapped just below 4GB,
@@ -287,6 +288,14 @@ config MACH_SUN50I_H5
 	select FIT
 	select SPL_LOAD_FIT
 
+config MACH_SUN50I_H6
+	bool "sun50i (Allwinner H6)"
+	select ARM64
+	select SUPPORT_SPL
+	select FIT
+	select SPL_LOAD_FIT
+	select DRAM_SUN50I_H6
+
 endchoice
 
 # The sun8i SoCs share a lot, this helps to avoid a lot of "if A23 || A33"
@@ -380,6 +389,7 @@ config DRAM_CLK
 	default 360 if MACH_SUN4I || MACH_SUN5I || MACH_SUN7I || \
 		       MACH_SUN8I_V3S
 	default 672 if MACH_SUN50I
+	default 744 if MACH_SUN50I_H6
 	---help---
 	Set the dram clock speed, valid range 240 - 480 (prior to sun9i),
 	must be a multiple of 24. For the sun9i (A80), the tested values
@@ -399,7 +409,7 @@ config DRAM_ZQ
 	default 123 if MACH_SUN4I || MACH_SUN5I || MACH_SUN6I || MACH_SUN8I
 	default 127 if MACH_SUN7I
 	default 14779 if MACH_SUN8I_V3S
-	default 3881979 if MACH_SUN8I_R40
+	default 3881979 if MACH_SUN8I_R40 || MACH_SUN50I_H6
 	default 4145117 if MACH_SUN9I
 	default 3881915 if MACH_SUN50I
 	---help---
@@ -411,6 +421,7 @@ config DRAM_ODT_EN
 	default y if MACH_SUN8I_A23
 	default y if MACH_SUN8I_R40
 	default y if MACH_SUN50I
+	default y if MACH_SUN50I_H6
 	---help---
 	Select this to enable dram odt (on die termination).
 
@@ -501,6 +512,7 @@ config SYS_CLK_FREQ
 	default 816000000 if MACH_SUN50I || MACH_SUN50I_H5
 	default 1008000000 if MACH_SUN8I
 	default 1008000000 if MACH_SUN9I
+	default 888000000 if MACH_SUN50I_H6
 
 config SYS_CONFIG_NAME
 	default "sun4i" if MACH_SUN4I
@@ -510,6 +522,7 @@ config SYS_CONFIG_NAME
 	default "sun8i" if MACH_SUN8I
 	default "sun9i" if MACH_SUN9I
 	default "sun50i" if MACH_SUN50I
+	default "sun50i" if MACH_SUN50I_H6
 
 config SYS_BOARD
 	default "sunxi"
@@ -715,6 +728,7 @@ config VIDEO_SUNXI
 	depends on !MACH_SUN8I_V3S
 	depends on !MACH_SUN9I
 	depends on !MACH_SUN50I
+	depends on !MACH_SUN50I_H6
 	select VIDEO
 	imply VIDEO_DT_SIMPLEFB
 	default y
@@ -947,6 +961,7 @@ config SPL_STACK_R_ADDR
 	default 0x4fe00000 if MACH_SUN8I
 	default 0x2fe00000 if MACH_SUN9I
 	default 0x4fe00000 if MACH_SUN50I
+	default 0x4fe00000 if MACH_SUN50I_H6
 
 config SPL_SPI_SUNXI
 	bool "Support for SPI Flash on Allwinner SoCs in SPL"
diff --git a/arch/arm/mach-sunxi/cpu_info.c b/arch/arm/mach-sunxi/cpu_info.c
index aadf575ef2..ae4745bfec 100644
--- a/arch/arm/mach-sunxi/cpu_info.c
+++ b/arch/arm/mach-sunxi/cpu_info.c
@@ -96,6 +96,8 @@ int print_cpuinfo(void)
 	puts("CPU:   Allwinner A64 (SUN50I)\n");
 #elif defined CONFIG_MACH_SUN50I_H5
 	puts("CPU:   Allwinner H5 (SUN50I)\n");
+#elif defined CONFIG_MACH_SUN50I_H6
+	puts("CPU:   Allwinner H6 (SUN50I)\n");
 #else
 #warning Please update cpu_info.c with correct CPU information
 	puts("CPU:   SUNXI Family\n");