rockchip: ARM64: split RK3399-Q7 board off the RK3399-EVB board

The RK3399-Q7 SoM is a Qseven-compatible (70mm x 70mm, MXM-230
connector) system-on-module from Theobroma Systems, featuring the
Rockchip RK3399.

It provides the following feature set:
 * up to 4GB DDR3
 * on-module SPI-NOR flash
 * on-module eMMC (with 8-bit interace)
 * SD card (on a baseboad) via edge connector
 * Gigabit Ethernet w/ on-module Micrel KSZ9031 GbE PHY
 * HDMI/eDP/MIPI displays
 * 2x MIPI-CSI
 * USB
   - 1x USB 3.0 dual-role (direct connection)
   - 2x USB 3.0 host + 1x USB 2.0 (on-module USB 3.0 hub)
 * on-module STM32 Cortex-M0 companion controller, implementing:
   - low-power RTC functionality (ISL1208 emulation)
   - fan controller (AMC6821 emulation)
   - USB<->CAN bridge controller

Note that we use a multi-payload FIT image for booting and have
Cortex-M0 payload in a separate subimage: we thus rely on the FIT
image loader to put it into the SRAM region that ATF expects it in.

Signed-off-by: Klaus Goger <klaus.goger@theobroma-systems.com>
Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Fixed build warning on puma-rk3399:
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Simon Glass <sjg@chromium.org>

arch/arm/mach-rockchip/rk3399/Kconfig

@@ -10,6 +10,24 @@ config TARGET_EVB_RK3399
 	  with full function and phisical connectors support like type-C ports,
 	  usb2.0 host ports, LVDS, JTAG, MAC, SDcard, HDMI, USB-2-serial...
 
+config TARGET_PUMA_RK3399
+	bool "Theobroma Systems RK3399-Q7 (Puma)"
+	help
+	  The RK3399-Q7 (Puma) is a system-on-module (designed and
+	  marketed by Theobroma Systems) featuring the Rockchip RK3399
+	  in a Qseven-compatible form-factor (running of a single 5V
+	  supply and exposing its external interfaces on a MXM-230
+	  connector).
+
+	  Key features of the RK3399-Q7 include:
+	   * on-module USB 3.0 hub (2x USB 3.0 host + 1x USB 2.0 host)
+	   * USB 3.0 dual-role
+	   * on-module Micrel KSZ9031 GbE PHY
+	   * on-module eMMC (up to 256GB configurations available)
+	   * on-module DDR3 (1GB, 2GB and 4GB configurations available)
+	   * HDMI, eDP, MIPI-DSI, MIPI-DSI/CSI and MIPI-CSI
+	   * SPI, I2C, I2S, UART, GPIO, ...
+
 endchoice
 
 config SYS_SOC
@@ -19,5 +37,6 @@ config SYS_MALLOC_F_LEN
 	default 0x0800
 
 source "board/rockchip/evb_rk3399/Kconfig"
+source "board/theobroma-systems/puma_rk3399/Kconfig"
 
 endif

board/theobroma-systems/puma_rk3399/Kconfig

@@ -0,0 +1,15 @@
+if TARGET_PUMA_RK3399
+
+config SYS_BOARD
+	default "puma_rk3399"
+
+config SYS_VENDOR
+	default "theobroma-systems"
+
+config SYS_CONFIG_NAME
+	default "puma_rk3399"
+
+config BOARD_SPECIFIC_OPTIONS # dummy
+	def_bool y
+
+endif

board/theobroma-systems/puma_rk3399/MAINTAINERS

@@ -0,0 +1,10 @@
+PUMA-RK3399
+M:	Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
+M:	Klaus Goger <klaus.goger@theobroma-systems.com>
+S:	Maintained
+F:	board/theobroma-systems/puma_rk3399
+F:	include/configs/puma_rk3399.h
+F:	arch/arm/dts/rk3399-puma.dts
+F:	configs/puma-rk3399_defconfig
+W:	https://www.theobroma-systems.com/rk3399-q7/tech-specs
+T:	git git://git.theobroma-systems.com/puma-u-boot.git

board/theobroma-systems/puma_rk3399/Makefile

@@ -0,0 +1,7 @@
+#
+# (C) Copyright 2017 Theobroma Systems Design und Consulting GmbH
+#
+# SPDX-License-Identifier:     GPL-2.0+
+#
+
+obj-y	+= puma-rk3399.o

board/theobroma-systems/puma_rk3399/README

@@ -0,0 +1,73 @@
+Introduction
+============
+
+The RK3399-Q7 (Puma) is a system-on-module featuring the Rockchip
+RK3399 in a Qseven-compatible form-factor.
+
+RK3399-Q7 features:
+	* CPU: ARMv8 64bit Big-Little architecture,
+		* Big: dual-core Cortex-A72
+		* Little: quad-core Cortex-A53
+		* IRAM: 200KB
+	* DRAM: 4GB-128MB dual-channel
+	* eMMC: onboard eMMC
+	* SD/MMC
+	* GbE (onboard Micrel KSZ9031) Gigabit ethernet PHY
+	* USB:
+		* USB3.0 dual role port
+		* 2x USB3.0 host, 1x USB2.0 host via onboard USB3.0 hub
+	* Display: HDMI/eDP/MIPI
+	* Camera: 2x CSI (one on the edge connector, one on the Q7 specified CSI ZIF)
+	* NOR Flash: onboard SPI NOR
+	* Companion Controller: onboard additional Cortex-M0 microcontroller
+		* RTC
+		* fan controller
+		* CAN
+
+Here is the step-by-step to boot to U-Boot on rk3399.
+
+Get the Source and build ATF/Cortex-M0 binaries
+===============================================
+
+  > git clone git://git.theobroma-systems.com/arm-trusted-firmware.git
+  > git clone git://git.theobroma-systems.com/rk3399-cortex-m0.git
+
+Compile the ATF
+===============
+
+  > cd arm-trusted-firmware
+  > make CROSS_COMPILE=aarch64-linux-gnu- PLAT=rk3399 bl31
+  > cp build/rk3399/release/bl31.bin ../u-boot
+
+Compile the M0 firmware
+=======================
+
+  > cd ../rk3399-cortex-m0
+  > make CROSS_COMPILE=arm-cortex_m0-eabi-
+  > cp rk3399m0.bin ../u-boot
+
+Compile the U-Boot
+==================
+
+  > cd ../u-boot
+  > make CROSS_COMPILE=aarch64-linux-gnu- puma-rk3399_defconfig all
+
+Package the image
+=================
+
+	> tools/mkimage -n rk3399 -T rksd -d spl/u-boot-spl.bin spl.img
+	> tools/mkimage -f board/theobroma/puma_rk3399/fit_spl_atf.its \
+		-E rk3399_bl3x.itb
+
+Flash the image
+===============
+
+Copy the SPL to offset 32k and the FIT image containing the payloads
+(U-Boot proper, ATF, M0 Firmware, devicetree) to offset 256k on a SD
+card.
+
+  > dd if=spl.img of=/dev/sdb seek=64
+  > dd if=rk3399_bl3x.itb of=/dev/sdb seek=512
+
+After powering up the board (with the inserted SD card), you should see
+a U-Boot console on UART0 (115200n8).

board/theobroma-systems/puma_rk3399/fit_spl_atf.its

@@ -0,0 +1,57 @@
+/*
+ * Copyright (C) 2017 Theobroma Systems Design und Consulting GmbH
+ *
+ * Minimal dts for a SPL FIT image payload.
+ *
+ * SPDX-License-Identifier: GPL-2.0+  X11
+ */
+
+/dts-v1/;
+
+/ {
+	description = "FIT image with U-Boot proper, ATF bl31, M0 Firmware, DTB";
+	#address-cells = <1>;
+
+	images {
+		uboot@1 {
+			description = "U-Boot (64-bit)";
+			data = /incbin/("../../../u-boot-nodtb.bin");
+			type = "standalone";
+			arch = "arm64";
+			compression = "none";
+			load = <0x00200000>;
+		};
+		atf@1 {
+			description = "ARM Trusted Firmware";
+			data = /incbin/("../../../bl31.bin");
+			type = "firmware";
+			arch = "arm64";
+			compression = "none";
+			load = <0x00001000>;
+			entry = <0x00001000>;
+		};
+		pmu@1 {
+		        description = "Cortex-M0 firmware";
+			data = /incbin/("../../../rk3399m0.bin");
+			type = "pmu-firmware";
+			compression = "none";
+			load = <0xff8c0000>;
+                };
+		fdt@1 {
+			description = "RK3399-Q7 (Puma) flat device-tree";
+			data = /incbin/("../../../u-boot.dtb");
+			type = "flat_dt";
+			compression = "none";
+		};
+	};
+
+	configurations {
+		default = "conf@1";
+		conf@1 {
+			description = "Theobroma Systems RK3399-Q7 (Puma) SoM";
+			firmware = "uboot@1";
+			loadables = "atf@1";
+			fdt = "fdt@1";
+		};
+	};
+};

board/theobroma-systems/puma_rk3399/puma-rk3399.c

@@ -0,0 +1,71 @@
+/*
+ * (C) Copyright 2017 Theobroma Systems Design und Consulting GmbH
+ *
+ * SPDX-License-Identifier:     GPL-2.0+
+ */
+#include <common.h>
+#include <dm.h>
+#include <dm/pinctrl.h>
+#include <dm/uclass-internal.h>
+#include <asm/arch/periph.h>
+#include <power/regulator.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+int board_init(void)
+{
+	struct udevice *pinctrl, *regulator;
+	int ret;
+
+	/*
+	 * The PWM does not have decicated interrupt number in dts and can
+	 * not get periph_id by pinctrl framework, so let's init them here.
+	 * The PWM2 and PWM3 are for pwm regulators.
+	 */
+	ret = uclass_get_device(UCLASS_PINCTRL, 0, &pinctrl);
+	if (ret) {
+		debug("%s: Cannot find pinctrl device\n", __func__);
+		goto out;
+	}
+
+	ret = pinctrl_request_noflags(pinctrl, PERIPH_ID_PWM2);
+	if (ret) {
+		debug("%s PWM2 pinctrl init fail!\n", __func__);
+		goto out;
+	}
+
+	/* rk3399 need to init vdd_center to get the correct output voltage */
+	ret = regulator_get_by_platname("vdd_center", &regulator);
+	if (ret)
+		debug("%s: Cannot get vdd_center regulator\n", __func__);
+
+	ret = regulator_get_by_platname("vcc5v0_host", &regulator);
+	if (ret) {
+		debug("%s vcc5v0_host init fail! ret %d\n", __func__, ret);
+		goto out;
+	}
+
+	ret = regulator_set_enable(regulator, true);
+	if (ret) {
+		debug("%s vcc5v0-host-en set fail!\n", __func__);
+		goto out;
+	}
+
+out:
+	return 0;
+}
+
+int dram_init(void)
+{
+	gd->ram_size = 0x80000000;
+	return 0;
+}
+
+int dram_init_banksize(void)
+{
+	/* Reserve 0x200000 for ATF bl31 */
+	gd->bd->bi_dram[0].start = 0x200000;
+	gd->bd->bi_dram[0].size = 0x7e000000;
+
+	return 0;
+}

configs/puma-rk3399_defconfig

@@ -1,5 +1,6 @@
 CONFIG_ARM=y
 CONFIG_ARCH_ROCKCHIP=y
+CONFIG_TARGET_PUMA_RK3399=y
 CONFIG_SPL_LIBCOMMON_SUPPORT=y
 CONFIG_SPL_LIBGENERIC_SUPPORT=y
 CONFIG_SYS_MALLOC_F_LEN=0x4000
@@ -11,7 +12,7 @@ CONFIG_DEFAULT_DEVICE_TREE="rk3399-puma"
 CONFIG_FIT=y
 CONFIG_SPL_FIT=y
 CONFIG_SPL_LOAD_FIT=y
-CONFIG_SPL_FIT_SOURCE="board/rockchip/evb_rk3399/fit_spl_atf.its"
+CONFIG_SPL_FIT_SOURCE="board/theobroma-systems/puma_rk3399/fit_spl_atf.its"
 # CONFIG_DISPLAY_CPUINFO is not set
 # CONFIG_SPL_RAW_IMAGE_SUPPORT is not set
 # CONFIG_SPL_LEGACY_IMAGE_SUPPORT is not set

include/configs/puma_rk3399.h

@@ -0,0 +1,27 @@
+/*
+ * (C) Copyright 2017 Theobroma Systems Design und Consulting GmbH
+ *
+ * SPDX-License-Identifier:     GPL-2.0+
+ */
+
+#ifndef __PUMA_RK3399_H
+#define __PUMA_RK3399_H
+
+#include <configs/rk3399_common.h>
+
+/*
+ * SPL @ 32kB for ~130kB
+ * ENV @ 240KB for 8kB
+ * FIT payload (ATF, U-Boot, FDT) @ 256kB
+ */
+#undef CONFIG_ENV_OFFSET
+#define CONFIG_ENV_OFFSET (240 * 1024)
+
+#define CONFIG_ENV_IS_IN_MMC
+#define CONFIG_SYS_MMC_ENV_DEV 1
+
+#define SDRAM_BANK_SIZE			(2UL << 30)
+
+#define CONFIG_SYS_WHITE_ON_BLACK
+
+#endif