arm: dts: Add devicetree for Hikey960 board

This commit adds devicetree for Hikey960 board. Most of the contents are
copied from Linux kernel with some modifications for u-boot. To be
more precise, SD card's speed related properties are removed due to a
bug in u-boot clock implementation. Hence forcing the SD controller to
work in standard speed.

Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>

3 files changed, 618 insertions, 0 deletions

diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile
index 9e7d6d6490..ce1eacb7ef 100644
--- a/arch/arm/dts/Makefile
+++ b/arch/arm/dts/Makefile
@@ -15,6 +15,7 @@ dtb-$(CONFIG_EXYNOS4) += exynos4210-origen.dtb \
 	exynos4412-odroid.dtb
 
 dtb-$(CONFIG_TARGET_HIKEY) += hi6220-hikey.dtb
+dtb-$(CONFIG_TARGET_HIKEY960) += hi3660-hikey960.dtb
 
 dtb-$(CONFIG_TARGET_POPLAR) += hi3798cv200-poplar.dtb
 
diff --git a/arch/arm/dts/hi3660-hikey960-u-boot.dtsi b/arch/arm/dts/hi3660-hikey960-u-boot.dtsi
new file mode 100644
index 0000000000..648c77f8c5
--- /dev/null
+++ b/arch/arm/dts/hi3660-hikey960-u-boot.dtsi
@@ -0,0 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * U-Boot additions
+ *
+ * Copyright (c) 2019 Linaro Ltd.
+ */
+
+&dwmmc1 {
+	u-boot,dm-pre-reloc;
+};
diff --git a/arch/arm/dts/hi3660-hikey960.dts b/arch/arm/dts/hi3660-hikey960.dts
new file mode 100644
index 0000000000..9fbfb422c8
--- /dev/null
+++ b/arch/arm/dts/hi3660-hikey960.dts
@@ -0,0 +1,607 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * dts file for Hisilicon HiKey960 Development Board
+ *
+ * Copyright (C) 2016, Hisilicon Ltd.
+ *
+ */
+
+/dts-v1/;
+
+#include "hi3660.dtsi"
+#include "hikey960-pinctrl.dtsi"
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
+#include <dt-bindings/interrupt-controller/irq.h>
+
+/ {
+	model = "HiKey960";
+	compatible = "hisilicon,hi3660-hikey960", "hisilicon,hi3660";
+
+	aliases {
+		mshc1 = &dwmmc1;
+		mshc2 = &dwmmc2;
+		serial0 = &uart0;
+		serial1 = &uart1;
+		serial2 = &uart2;
+		serial3 = &uart3;
+		serial4 = &uart4;
+		serial5 = &uart5;
+		serial6 = &uart6;
+	};
+
+	chosen {
+		stdout-path = "serial6:115200n8";
+	};
+
+	memory@0 {
+		device_type = "memory";
+		/* rewrite this at bootloader */
+		reg = <0x0 0x0 0x0 0x0>;
+	};
+
+	reserved-memory {
+		#address-cells = <2>;
+		#size-cells = <2>;
+		ranges;
+
+		ramoops@32000000 {
+			compatible = "ramoops";
+			reg = <0x0 0x32000000 0x0 0x00100000>;
+			record-size	= <0x00020000>;
+			console-size	= <0x00020000>;
+			ftrace-size	= <0x00020000>;
+		};
+	};
+
+	reboot-mode-syscon@32100000 {
+		compatible = "syscon", "simple-mfd";
+		reg = <0x0 0x32100000 0x0 0x00001000>;
+
+		reboot-mode {
+			compatible = "syscon-reboot-mode";
+			offset = <0x0>;
+
+			mode-normal	= <0x77665501>;
+			mode-bootloader	= <0x77665500>;
+			mode-recovery	= <0x77665502>;
+		};
+	};
+
+	keys {
+		compatible = "gpio-keys";
+		pinctrl-names = "default";
+		pinctrl-0 = <&pwr_key_pmx_func &pwr_key_cfg_func>;
+
+		power {
+			wakeup-source;
+			gpios = <&gpio4 2 GPIO_ACTIVE_LOW>;
+			label = "GPIO Power";
+			linux,code = <KEY_POWER>;
+		};
+	};
+
+	leds {
+		compatible = "gpio-leds";
+
+		user_led1 {
+			label = "green:user1";
+			/* gpio_150_user_led1 */
+			gpios = <&gpio18 6 0>;
+			linux,default-trigger = "heartbeat";
+		};
+
+		user_led2 {
+			label = "green:user2";
+			/* gpio_151_user_led2 */
+			gpios = <&gpio18 7 0>;
+			linux,default-trigger = "none";
+		};
+
+		user_led3 {
+			label = "green:user3";
+			/* gpio_189_user_led3 */
+			gpios = <&gpio23 5 0>;
+			linux,default-trigger = "mmc0";
+		};
+
+		user_led4 {
+			label = "green:user4";
+			/* gpio_190_user_led4 */
+			gpios = <&gpio23 6 0>;
+			panic-indicator;
+			linux,default-trigger = "none";
+		};
+
+		wlan_active_led {
+			label = "yellow:wlan";
+			/* gpio_205_wifi_active */
+			gpios = <&gpio25 5 0>;
+			linux,default-trigger = "phy0tx";
+			default-state = "off";
+		};
+
+		bt_active_led {
+			label = "blue:bt";
+			gpios = <&gpio25 7 0>;
+			/* gpio_207_user_led1 */
+			linux,default-trigger = "hci0-power";
+			default-state = "off";
+		};
+	};
+
+	pmic: pmic@fff34000 {
+		compatible = "hisilicon,hi6421v530-pmic";
+		reg = <0x0 0xfff34000 0x0 0x1000>;
+		interrupt-controller;
+		#interrupt-cells = <2>;
+
+		regulators {
+			ldo3: LDO3 { /* HDMI */
+				regulator-name = "VOUT3_1V85";
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <2200000>;
+				regulator-enable-ramp-delay = <120>;
+			};
+
+			ldo9: LDO9 { /* SDCARD I/O */
+				regulator-name = "VOUT9_1V8_2V95";
+				regulator-min-microvolt = <1750000>;
+				regulator-max-microvolt = <3300000>;
+				regulator-enable-ramp-delay = <240>;
+			};
+
+			ldo11: LDO11 { /* Low Speed Connector */
+				regulator-name = "VOUT11_1V8_2V95";
+				regulator-min-microvolt = <1750000>;
+				regulator-max-microvolt = <3300000>;
+				regulator-enable-ramp-delay = <240>;
+			};
+
+			ldo15: LDO15 { /* UFS VCC */
+				regulator-name = "VOUT15_3V0";
+				regulator-min-microvolt = <1750000>;
+				regulator-max-microvolt = <3000000>;
+				regulator-boot-on;
+				regulator-always-on;
+				regulator-enable-ramp-delay = <120>;
+			};
+
+			ldo16: LDO16 { /* SD VDD */
+				regulator-name = "VOUT16_2V95";
+				regulator-min-microvolt = <1750000>;
+				regulator-max-microvolt = <3000000>;
+				regulator-enable-ramp-delay = <360>;
+			};
+		};
+	};
+
+	wlan_en: wlan-en-1-8v {
+		compatible = "regulator-fixed";
+		regulator-name = "wlan-en-regulator";
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <1800000>;
+
+		/* GPIO_051_WIFI_EN */
+		gpio = <&gpio6 3 0>;
+
+		/* WLAN card specific delay */
+		startup-delay-us = <70000>;
+		enable-active-high;
+	};
+
+	firmware {
+		optee {
+			compatible = "linaro,optee-tz";
+			method = "smc";
+		};
+	};
+};
+
+/*
+ * Legend: proper name = the GPIO line is used as GPIO
+ *         NC = not connected (pin out but not routed from the chip to
+ *              anything the board)
+ *         "[PER]" = pin is muxed for [peripheral] (not GPIO)
+ *         "" = no idea, schematic doesn't say, could be
+ *              unrouted (not connected to any external pin)
+ *         LSEC = Low Speed External Connector
+ *         HSEC = High Speed External Connector
+ *
+ * Line names are taken from "HiKey 960 Board ver A" schematics
+ * from Huawei. The 40 pin low speed expansion connector is named
+ * J2002 63453-140LF.
+ *
+ * For the lines routed to the external connectors the
+ * lines are named after the 96Boards CE Specification 1.0,
+ * Appendix "Expansion Connector Signal Description".
+ *
+ * When the 96Board naming of a line and the schematic name of
+ * the same line are in conflict, the 96Board specification
+ * takes precedence, which means that the external UART on the
+ * LSEC is named UART0 while the schematic and SoC names this
+ * UART3. This is only for the informational lines i.e. "[FOO]",
+ * the GPIO named lines "GPIO-A" thru "GPIO-L" are the only
+ * ones actually used for GPIO.
+ */
+&gpio0 {
+	/* GPIO_000-GPIO_007 */
+	gpio-line-names =
+		"",
+		"TP901", /* TEST_MODE connected to TP901 */
+		"[PMU0_SSI]",
+		"[PMU1_SSI]",
+		"[PMU2_SSI]",
+		"[PMU0_CLKOUT]",
+		"[JTAG_TCK]",
+		"[JTAG_TMS]";
+};
+
+&gpio1 {
+	/* GPIO_008-GPIO_015 */
+	gpio-line-names =
+		"[JTAG_TRST_N]",
+		"[JTAG_TDI]",
+		"[JTAG_TDO]",
+		"NC", "NC",
+		"[I2C3_SCL]",
+		"[I2C3_SDA]",
+		"NC";
+};
+
+&gpio2 {
+	/* GPIO_016-GPIO_023 */
+	gpio-line-names =
+		"NC", "NC", "NC",
+		"GPIO-J", /* LSEC pin 32: GPIO_019 */
+		"GPIO_020_HDMI_SEL",
+		"GPIO-L", /* LSEC pin 34: GPIO_021 */
+		"GPIO_022_UFSBUCK_INT_N",
+		"GPIO-G"; /* LSEC pin 29: LCD_TE0 */
+};
+
+&gpio3 {
+	/* GPIO_024-GPIO_031 */
+	/* The rail from pin BK36 is named LCD_TE0, we assume to be muxed as GPIO for GPIO-G */
+	gpio-line-names =
+		"[CSI0_MCLK]", /* HSEC pin 15: ISP_CCLK0_MCAM */
+		"[CSI1_MCLK]", /* HSEC pin 17: ISP_CCLK1_SCAM */
+		"NC",
+		"[I2C2_SCL]", /* HSEC pin 32: ISP_SCL0 */
+		"[I2C2_SDA]", /* HSEC pin 34: ISP_SDA0 */
+		"[I2C3_SCL]", /* HSEC pin 36: ISP_SCL1 */
+		"[I2C3_SDA]", /* HSEC pin 38: ISP_SDA1 */
+		"NC";
+};
+
+&gpio4 {
+	/* GPIO_032-GPIO_039 */
+	gpio-line-names =
+		"NC", "NC",
+		"PWR_BTN_N", /* LSEC pin 4: GPIO_034_PWRON_DET */
+		"GPIO_035_PMU2_EN",
+		"GPIO_036_USB_HUB_RESET",
+		"NC", "NC", "NC";
+};
+
+&gpio5 {
+	/* GPIO_040-GPIO_047 */
+	gpio-line-names =
+		"GPIO-H", /* LSEC pin 30: GPIO_040_LCD_RST_N */
+		"GPIO_041_HDMI_PD",
+		"TP904", /* Test point */
+		"TP905", /* Test point */
+		"NC", "NC",
+		"GPIO_046_HUB_VDD33_EN",
+		"GPIO_047_PMU1_EN";
+};
+
+&gpio6 {
+	/* GPIO_048-GPIO_055 */
+	gpio-line-names =
+		"NC", "NC", "NC",
+		"GPIO_051_WIFI_EN",
+		"GPIO-I", /* LSEC pin 31: GPIO_052_CAM0_RST_N */
+		/*
+		 * These two pins should be used for SD(IO) data according to the
+		 * 96boards specification but seems to be repurposed for a IRDA UART.
+		 * They are however named according to the spec.
+		 */
+		"[SD_DAT1]", /* HSEC pin 3: UART0_IRDA_RXD */
+		"[SD_DAT2]", /* HSEC pin 5: UART0_IRDA_TXD */
+		"[UART1_RXD]"; /* LSEC pin 13: DEBUG_UART6_RXD */
+};
+
+&gpio7 {
+	/* GPIO_056-GPIO_063 */
+	gpio-line-names =
+		"[UART1_TXD]", /* LSEC pin 11: DEBUG_UART6_TXD */
+		"[UART0_CTS]", /* LSEC pin 3: UART3_CTS_N */
+		"[UART0_RTS]", /* LSEC pin 9: UART3_RTS_N */
+		"[UART0_RXD]", /* LSEC pin 7: UART3_RXD */
+		"[UART0_TXD]", /* LSEC pin 5: UART3_TXD */
+		"[SOC_BT_UART4_CTS_N]",
+		"[SOC_BT_UART4_RTS_N]",
+		"[SOC_BT_UART4_RXD]";
+};
+
+&gpio8 {
+	/* GPIO_064-GPIO_071 */
+	gpio-line-names =
+		"[SOC_BT_UART4_TXD]",
+		"NC",
+		"[PMU_HKADC_SSI]",
+		"NC",
+		"GPIO_068_SEL",
+		"NC", "NC", "NC";
+
+};
+
+&gpio9 {
+	/* GPIO_072-GPIO_079 */
+	gpio-line-names =
+		"NC", "NC", "NC",
+		"GPIO-K", /* LSEC pin 33: GPIO_075_CAM1_RST_N */
+		"NC", "NC", "NC", "NC";
+};
+
+&gpio10 {
+	/* GPIO_080-GPIO_087 */
+	gpio-line-names = "NC", "NC", "NC", "NC", "NC", "NC", "NC", "NC";
+};
+
+&gpio11 {
+	/* GPIO_088-GPIO_095 */
+	gpio-line-names =
+		"NC",
+		"[PCIE_PERST_N]",
+		"NC", "NC", "NC", "NC", "NC", "NC";
+};
+
+&gpio12 {
+	/* GPIO_096-GPIO_103 */
+	gpio-line-names = "NC", "NC", "NC", "", "", "", "", "NC";
+};
+
+&gpio13 {
+	/* GPIO_104-GPIO_111 */
+	gpio-line-names = "NC", "NC", "NC", "NC", "NC", "NC", "NC", "NC";
+};
+
+&gpio14 {
+	/* GPIO_112-GPIO_119 */
+	gpio-line-names = "NC", "NC", "NC", "NC", "NC", "NC", "NC", "NC";
+};
+
+&gpio15 {
+	/* GPIO_120-GPIO_127 */
+	gpio-line-names =
+		"NC", "NC", "NC", "NC", "NC", "NC",
+		"GPIO_126_BT_EN",
+		"TP902"; /* GPIO_127_JTAG_SEL0 */
+};
+
+&gpio16 {
+	/* GPIO_128-GPIO_135 */
+	gpio-line-names = "", "", "", "", "", "", "", "";
+};
+
+&gpio17 {
+	/* GPIO_136-GPIO_143 */
+	gpio-line-names = "", "", "", "", "", "", "", "";
+};
+
+&gpio18 {
+	/* GPIO_144-GPIO_151 */
+	gpio-line-names =
+		"[UFS_REF_CLK]",
+		"[UFS_RST_N]",
+		"[SPI1_SCLK]", /* HSEC pin 9: GPIO_146_SPI3_CLK */
+		"[SPI1_DIN]", /* HSEC pin 11: GPIO_147_SPI3_DI */
+		"[SPI1_DOUT]", /* HSEC pin 1: GPIO_148_SPI3_DO */
+		"[SPI1_CS]", /* HSEC pin 7: GPIO_149_SPI3_CS0_N */
+		"GPIO_150_USER_LED1",
+		"GPIO_151_USER_LED2";
+};
+
+&gpio19 {
+	/* GPIO_152-GPIO_159 */
+	gpio-line-names = "NC", "NC", "NC", "NC", "", "", "", "";
+};
+
+&gpio20 {
+	/* GPIO_160-GPIO_167 */
+	gpio-line-names =
+		"[SD_CLK]",
+		"[SD_CMD]",
+		"[SD_DATA0]",
+		"[SD_DATA1]",
+		"[SD_DATA2]",
+		"[SD_DATA3]",
+		"", "";
+};
+
+&gpio21 {
+	/* GPIO_168-GPIO_175 */
+	gpio-line-names =
+		"[WL_SDIO_CLK]",
+		"[WL_SDIO_CMD]",
+		"[WL_SDIO_DATA0]",
+		"[WL_SDIO_DATA1]",
+		"[WL_SDIO_DATA2]",
+		"[WL_SDIO_DATA3]",
+		"", "";
+};
+
+&gpio22 {
+	/* GPIO_176-GPIO_183 */
+	gpio-line-names =
+		"[GPIO_176_PMU_PWR_HOLD]",
+		"NA",
+		"[SYSCLK_EN]",
+		"GPIO_179_WL_WAKEUP_AP",
+		"GPIO_180_HDMI_INT",
+		"NA",
+		"GPIO-F", /* LSEC pin 28: LCD_BL_PWM */
+		"[I2C0_SCL]"; /* LSEC pin 15 */
+};
+
+&gpio23 {
+	/* GPIO_184-GPIO_191 */
+	gpio-line-names =
+		"[I2C0_SDA]", /* LSEC pin 17 */
+		"[I2C1_SCL]", /* Actual SoC I2C1 */
+		"[I2C1_SDA]", /* Actual SoC I2C1 */
+		"[I2C1_SCL]", /* LSEC pin 19: I2C7_SCL */
+		"[I2C1_SDA]", /* LSEC pin 21: I2C7_SDA */
+		"GPIO_189_USER_LED3",
+		"GPIO_190_USER_LED4",
+		"";
+};
+
+&gpio24 {
+	/* GPIO_192-GPIO_199 */
+	gpio-line-names =
+		"[PCM_DI]", /* LSEC pin 22: GPIO_192_I2S0_DI */
+		"[PCM_DO]", /* LSEC pin 20: GPIO_193_I2S0_DO */
+		"[PCM_CLK]", /* LSEC pin 18: GPIO_194_I2S0_XCLK */
+		"[PCM_FS]", /* LSEC pin 16: GPIO_195_I2S0_XFS */
+		"[GPIO_196_I2S2_DI]",
+		"[GPIO_197_I2S2_DO]",
+		"[GPIO_198_I2S2_XCLK]",
+		"[GPIO_199_I2S2_XFS]";
+};
+
+&gpio25 {
+	/* GPIO_200-GPIO_207 */
+	gpio-line-names =
+		"NC",
+		"NC",
+		"GPIO_202_VBUS_TYPEC",
+		"GPIO_203_SD_DET",
+		"GPIO_204_PMU12_IRQ_N",
+		"GPIO_205_WIFI_ACTIVE",
+		"GPIO_206_USBSW_SEL",
+		"GPIO_207_BT_ACTIVE";
+};
+
+&gpio26 {
+	/* GPIO_208-GPIO_215 */
+	gpio-line-names =
+		"GPIO-A", /* LSEC pin 23: GPIO_208 */
+		"GPIO-B", /* LSEC pin 24: GPIO_209 */
+		"GPIO-C", /* LSEC pin 25: GPIO_210 */
+		"GPIO-D", /* LSEC pin 26: GPIO_211 */
+		"GPIO-E", /* LSEC pin 27: GPIO_212 */
+		"[PCIE_CLKREQ_N]",
+		"[PCIE_WAKE_N]",
+		"[SPI0_CLK]"; /* LSEC pin 8: SPI2_CLK */
+};
+
+&gpio27 {
+	/* GPIO_216-GPIO_223 */
+	gpio-line-names =
+		"[SPI0_DIN]", /* LSEC pin 10: SPI2_DI */
+		"[SPI0_DOUT]", /* LSEC pin 14: SPI2_DO */
+		"[SPI0_CS]", /* LSEC pin 12: SPI2_CS0_N */
+		"GPIO_219_CC_INT",
+		"NC",
+		"NC",
+		"[PMU_INT]",
+		"";
+};
+
+&gpio28 {
+	/* GPIO_224-GPIO_231 */
+	gpio-line-names =
+		"", "", "", "", "", "", "", "";
+};
+
+&i2c0 {
+	/* On Low speed expansion */
+	label = "LS-I2C0";
+	status = "okay";
+};
+
+&i2c1 {
+	status = "okay";
+
+	adv7533: adv7533@39 {
+		status = "ok";
+		compatible = "adi,adv7533";
+		reg = <0x39>;
+	};
+};
+
+&uart3 {
+	/* On Low speed expansion */
+	label = "LS-UART0";
+	status = "okay";
+};
+
+&uart4 {
+	status = "okay";
+
+	bluetooth {
+		compatible = "ti,wl1837-st";
+		enable-gpios = <&gpio15 6 GPIO_ACTIVE_HIGH>;
+		max-speed = <3000000>;
+	};
+};
+
+&i2c7 {
+	/* On Low speed expansion */
+	label = "LS-I2C1";
+	status = "okay";
+};
+
+&uart6 {
+	/* On Low speed expansion */
+	label = "LS-UART1";
+	status = "okay";
+};
+
+&spi2 {
+	/* On Low speed expansion */
+	label = "LS-SPI0";
+	status = "okay";
+};
+
+&spi3 {
+	/* On High speed expansion */
+	label = "HS-SPI1";
+	status = "okay";
+};
+
+&dwmmc1 {
+	cd-gpios = <&gpio25 3 GPIO_ACTIVE_LOW>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&sd_pmx_func
+		     &sd_clk_cfg_func
+		     &sd_cfg_func>;
+	vmmc-supply = <&ldo16>;
+	vqmmc-supply = <&ldo9>;
+	status = "okay";
+};
+
+&dwmmc2 { /* WIFI */
+	bus-width = <0x4>;
+	non-removable;
+	broken-cd;
+	cap-power-off-card;
+	pinctrl-names = "default";
+	pinctrl-0 = <&sdio_pmx_func
+		     &sdio_clk_cfg_func
+		     &sdio_cfg_func>;
+	/* WL_EN */
+	vmmc-supply = <&wlan_en>;
+	status = "ok";
+
+	wlcore: wlcore@2 {
+		compatible = "ti,wl1837";
+		reg = <2>;      /* sdio func num */
+		/* WL_IRQ, GPIO_179_WL_WAKEUP_AP */
+		interrupt-parent = <&gpio22>;
+		interrupts = <3 IRQ_TYPE_EDGE_RISING>;
+	};
+};