rockchip: board: lion-rk3368: add support for the RK3368-uQ7

The RK3368-uQ7 (codenamed 'Lion') is a micro-Qseven (40mm x 70mm,
MXM-230 edge connector compatible with the Qseven specification)
form-factor system-on-module based on the octo-core Rockchip RK3368.
It is designed, supported and manufactured by Theobroma Systems.

It provides the following features:
 - 8x Cortex-A53 (in 2 clusters of 4 cores each)
 - (on-module) up to 4GB of DDR3 memory
 - (on-module) SPI-NOR flash
 - (on-module) eMMC
 - Gigabit Ethernet (with an on-module KSZ9031 PHY)
 - USB
 - HDMI
 - MIPI-DSI/single-channel LVDS (muxed on the 'LVDS-A' pin-group)
 - various 'slow' interfaces (e.g. UART, SPI, I2C, I2S, ...)

Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

4 files changed, 284 insertions, 4 deletions

diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile
index c2dc240edf..2cbdb17ca5 100644
--- a/arch/arm/dts/Makefile
+++ b/arch/arm/dts/Makefile
@@ -42,6 +42,7 @@ dtb-$(CONFIG_ARCH_ROCKCHIP) += \
 	rk3288-veyron-mickey.dtb \
 	rk3288-veyron-minnie.dtb \
 	rk3328-evb.dtb \
+	rk3368-lion.dtb \
 	rk3368-sheep.dtb \
 	rk3368-geekbox.dtb \
 	rk3368-px5-evb.dtb \
diff --git a/arch/arm/dts/rk3368-lion-u-boot.dtsi b/arch/arm/dts/rk3368-lion-u-boot.dtsi
new file mode 100644
index 0000000000..2053fb1495
--- /dev/null
+++ b/arch/arm/dts/rk3368-lion-u-boot.dtsi
@@ -0,0 +1,88 @@
+/*
+ * (C) Copyright 2017 Theobroma Systems Design und Consulting GmbH
+ *
+ * SPDX-License-Identifier:     GPL-2.0+	X11
+ */
+
+/ {
+	config {
+		u-boot,spl-payload-offset = <0x40000>; /* @ 256KB */
+		u-boot,mmc-env-offset = <0x4000>;      /* @  16KB */
+	};
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+		u-boot,spl-boot-order = &emmc, &sdmmc;
+	};
+
+};
+
+&pinctrl {
+	u-boot,dm-pre-reloc;
+};
+
+&service_msch {
+	u-boot,dm-pre-reloc;
+};
+
+&dmc {
+	u-boot,dm-pre-reloc;
+
+	/*
+	 * Validation of throughput using SPEC2000 shows the following
+	 * relative performance for the different memory schedules:
+	 *  - CBDR: 30.1
+	 *  - CBRD: 29.8
+	 *  - CRBD: 29.9
+	 * Note that the best performance for any given application workload
+	 * may vary from the default configured here (e.g. 164.gzip is fastest
+	 * with CBRD, whereas 252.eon and 186.crafty are fastest with CRBD).
+	 *
+	 * See doc/device-tree-bindings/clock/rockchip,rk3368-dmc.txt for
+	 * details on the 'rockchip,memory-schedule' property and how it
+	 * affects the physical-address to device-address mapping.
+	 */
+	rockchip,memory-schedule = <DMC_MSCH_CBDR>;
+	rockchip,ddr-frequency = <800000000>;
+	rockchip,ddr-speed-bin = <DDR3_1600K>;
+
+	status = "okay";
+};
+
+&pmugrf {
+	u-boot,dm-pre-reloc;
+};
+
+&sgrf {
+        u-boot,dm-pre-reloc;
+};
+
+&cru {
+	u-boot,dm-pre-reloc;
+};
+
+&grf {
+	u-boot,dm-pre-reloc;
+};
+
+&uart0 {
+	u-boot,dm-pre-reloc;
+};
+
+&emmc {
+	u-boot,dm-pre-reloc;
+};
+
+&sdmmc {
+	u-boot,dm-pre-reloc;
+};
+
+&spi1 {
+	u-boot,dm-pre-reloc;
+
+	spiflash: w25q32dw@0 {
+		u-boot,dm-pre-reloc;
+	};
+};
+
+
diff --git a/arch/arm/dts/rk3368-lion.dts b/arch/arm/dts/rk3368-lion.dts
new file mode 100644
index 0000000000..850db500e4
--- /dev/null
+++ b/arch/arm/dts/rk3368-lion.dts
@@ -0,0 +1,195 @@
+/*
+ * (C) Copyright 2017 Theobroma Systems Design und Consulting GmbH
+ *
+ * SPDX-License-Identifier:     GPL-2.0+	X11
+ */
+
+/dts-v1/;
+#include "rk3368.dtsi"
+#include "rk3368-lion-u-boot.dtsi"
+#include <dt-bindings/input/input.h>
+
+/ {
+	model = "Theobroma Systems RK3368-uQ7 SoM";
+	compatible = "tsd,rk3368-uq7", "tsd,lion", "rockchip,rk3368";
+
+	aliases {
+		mmc0 = &emmc;
+		mmc1 = &sdmmc;
+	};
+
+	memory@0 {
+		device_type = "memory";
+		reg = <0x0 0x0 0x0 0x80000000>;
+	};
+
+	ext_gmac: gmac-clk {
+		compatible = "fixed-clock";
+		clock-frequency = <125000000>;
+		clock-output-names = "ext_gmac";
+		#clock-cells = <0>;
+	};
+
+	vcc_sys: vcc-sys-regulator {
+		compatible = "regulator-fixed";
+		regulator-name = "vcc_sys";
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+		regulator-always-on;
+		regulator-boot-on;
+	};
+};
+
+&uart0 {
+	status = "okay";
+};
+
+&emmc {
+	status = "okay";
+	bus-width = <8>;
+	cap-mmc-highspeed;
+	clock-frequency = <150000000>;
+	disable-wp;
+	keep-power-in-suspend;
+	non-removable;
+	num-slots = <1>;
+	vmmc-supply = <&vcc33_io>;
+	vqmmc-supply = <&vcc18_io>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&emmc_clk>, <&emmc_cmd>, <&emmc_bus8>;
+};
+
+&sdmmc {
+	status = "okay";
+};
+
+&gmac {
+	status = "okay";
+	phy-supply = <&vcc33_io>;
+	phy-mode = "rgmii";
+	clock_in_out = "input";
+	snps,reset-gpio = <&gpio3 11 GPIO_ACTIVE_LOW>;
+	snps,reset-active-low;
+	snps,reset-delays-us = <2 10000 50000>;
+	assigned-clocks = <&cru SCLK_MAC>;
+	assigned-clock-parents = <&ext_gmac>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&rgmii_pins>;
+	tx_delay = <0x10>;
+	rx_delay = <0x10>;
+};
+
+&i2c0 {
+	status = "okay";
+
+	rk808: pmic@1b {
+		compatible = "rockchip,rk808";
+		reg = <0x1b>;
+		interrupt-parent = <&gpio0>;
+		interrupts = <5 IRQ_TYPE_LEVEL_LOW>;
+		rockchip,system-power-controller;
+		vcc1-supply = <&vcc_sys>;
+		vcc2-supply = <&vcc_sys>;
+		vcc3-supply = <&vcc_sys>;
+		vcc4-supply = <&vcc_sys>;
+		vcc6-supply = <&vcc_sys>;
+		vcc7-supply = <&vcc_sys>;
+		vcc8-supply = <&vcc_sys>;
+		vcc9-supply = <&vcc_sys>;
+		vcc10-supply = <&vcc_sys>;
+		vcc11-supply = <&vcc_sys>;
+		vcc12-supply = <&vcc_sys>;
+		clock-output-names = "xin32k", "rk808-clkout2";
+		#clock-cells = <1>;
+
+		regulators {
+			vdd_cpu: DCDC_REG1 {
+				regulator-always-on;
+				regulator-boot-on;
+				regulator-min-microvolt = <700000>;
+				regulator-max-microvolt = <1500000>;
+				regulator-name = "vdd_cpu";
+			};
+
+			vdd_log: DCDC_REG2 {
+				regulator-always-on;
+				regulator-boot-on;
+				regulator-min-microvolt = <700000>;
+				regulator-max-microvolt = <1500000>;
+				regulator-name = "vdd_log";
+			};
+
+			vcc_ddr: DCDC_REG3 {
+				regulator-always-on;
+				regulator-boot-on;
+				regulator-name = "vcc_ddr";
+			};
+
+			vcc33_io: DCDC_REG4 {
+				regulator-always-on;
+				regulator-boot-on;
+				regulator-min-microvolt = <3300000>;
+				regulator-max-microvolt = <3300000>;
+				regulator-name = "vcc33_io";
+			};
+
+			vcc33_video: LDO_REG2 {
+				regulator-always-on;
+				regulator-boot-on;
+				regulator-min-microvolt = <3300000>;
+				regulator-max-microvolt = <3300000>;
+				regulator-name = "vcc33_video";
+			};
+
+			vdd10_pll: LDO_REG3 {
+				regulator-always-on;
+				regulator-boot-on;
+				regulator-min-microvolt = <1000000>;
+				regulator-max-microvolt = <1000000>;
+				regulator-name = "vdd10_pll";
+			};
+
+			vcc18_io: LDO_REG4 {
+				regulator-boot-on;
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <1800000>;
+				regulator-name = "vcc18_io";
+			};
+
+			vdd10_video: LDO_REG6 {
+				regulator-always-on;
+				regulator-boot-on;
+				regulator-min-microvolt = <1000000>;
+				regulator-max-microvolt = <1000000>;
+				regulator-name = "vdd10_video";
+			};
+
+			vcc18_video: LDO_REG8 {
+				regulator-always-on;
+				regulator-boot-on;
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <1800000>;
+				regulator-name = "vcc18_video";
+			};
+		};
+	};
+};
+
+&uart0 {
+	status = "okay";
+};
+
+&spi1 {
+	status = "okay";
+
+	#address-cells = <1>;
+	#size-cells = <0>;
+
+	spiflash: w25q32dw@0 {
+		compatible = "spi-flash";
+		reg = <0>;
+		spi-max-frequency = <49500000>;
+		spi-cpol;
+		spi-cpha;
+	};
+};
diff --git a/arch/arm/dts/rk3368.dtsi b/arch/arm/dts/rk3368.dtsi
index 0dad34dc20..22fb7e7894 100644
--- a/arch/arm/dts/rk3368.dtsi
+++ b/arch/arm/dts/rk3368.dtsi
@@ -238,7 +238,6 @@
 	};
 
 	service_msch: syscon@ffac0000 {
-		u-boot,dm-pre-reloc;
 		compatible = "rockchip,rk3368-msch", "syscon";
 		reg = <0x0 0xffac0000 0x0 0x2000>;
 		status = "okay";
@@ -658,7 +657,6 @@
 	};
 
 	pmugrf: syscon@ff738000 {
-		u-boot,dm-pre-reloc;
 		compatible = "rockchip,rk3368-pmugrf", "syscon";
 		reg = <0x0 0xff738000 0x0 0x1000>;
 	};
@@ -669,7 +667,6 @@
 	};
 
 	cru: clock-controller@ff760000 {
-		u-boot,dm-pre-reloc;
 		compatible = "rockchip,rk3368-cru";
 		reg = <0x0 0xff760000 0x0 0x1000>;
 		rockchip,grf = <&grf>;
@@ -678,7 +675,6 @@
 	};
 
 	grf: syscon@ff770000 {
-		u-boot,dm-pre-reloc;
 		compatible = "rockchip,rk3368-grf", "syscon";
 		reg = <0x0 0xff770000 0x0 0x1000>;
 	};