rockchip: rk3328: add evb-rk3328 support

evb-rk3328 is an evb from Rockchip based on rk3328 SoC:
- 2 USB2.0 Host port;
- 1 USB3.0 Host port;
- 1 HDMI port;
- 2 10/100M eth port;
- 2GB ddr;
- 16GB eMMC;
- UART to USB debug port;

Signed-off-by: William Zhang <william.zhang@rock-chips.com>
Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Acked-by: Simon Glass <sjg@chromium.org>

5 files changed, 138 insertions, 0 deletions

diff --git a/board/rockchip/evb_rk3328/Kconfig b/board/rockchip/evb_rk3328/Kconfig
new file mode 100644
index 0000000..ef446b4
--- /dev/null
+++ b/board/rockchip/evb_rk3328/Kconfig
@@ -0,0 +1,15 @@
+if TARGET_EVB_RK3328
+
+config SYS_BOARD
+	default "evb_rk3328"
+
+config SYS_VENDOR
+	default "rockchip"
+
+config SYS_CONFIG_NAME
+	default "evb_rk3328"
+
+config BOARD_SPECIFIC_OPTIONS # dummy
+	def_bool y
+
+endif
diff --git a/board/rockchip/evb_rk3328/MAINTAINERS b/board/rockchip/evb_rk3328/MAINTAINERS
new file mode 100644
index 0000000..9db604f
--- /dev/null
+++ b/board/rockchip/evb_rk3328/MAINTAINERS
@@ -0,0 +1,6 @@
+EVB-RK3328
+M:      William Zhang <william.zhang@rock-chips.com>
+S:      Maintained
+F:      board/rockchip/evb_rk3328
+F:      include/configs/evb_rk3328.h
+F:      configs/evb-rk3328_defconfig
diff --git a/board/rockchip/evb_rk3328/Makefile b/board/rockchip/evb_rk3328/Makefile
new file mode 100644
index 0000000..81c5de8
--- /dev/null
+++ b/board/rockchip/evb_rk3328/Makefile
@@ -0,0 +1,7 @@
+#
+# (C) Copyright 2016 Rockchip Electronics Co., Ltd
+#
+# SPDX-License-Identifier:     GPL-2.0+
+#
+
+obj-y	+= evb-rk3328.o
diff --git a/board/rockchip/evb_rk3328/README b/board/rockchip/evb_rk3328/README
new file mode 100644
index 0000000..6cbb66a
--- /dev/null
+++ b/board/rockchip/evb_rk3328/README
@@ -0,0 +1,70 @@
+Introduction
+============
+
+RK3328 key features we might use in U-Boot:
+* CPU: ARMv8 64bit quad-core Cortex-A53
+* IRAM: 36KB
+* DRAM: 4GB-16MB dual-channel
+* eMMC: support eMMC 5.0/5.1, suport HS400, HS200, DDR50
+* SD/MMC: support SD 3.0, MMC 4.51
+* USB: USB2.0 EHCI host port *2
+* Display: RGB/HDMI/DP/MIPI/EDP
+
+evb key features:
+* regulator: pwm regulator for CPU B/L
+* PMIC: rk808
+* debug console: UART2
+
+In order to support Arm Trust Firmware(ATF), we need to use the
+miniloader from rockchip which:
+* do DRAM init
+* load and verify ATF image
+* load and verify U-Boot image
+
+Here is the step-by-step to boot to U-Boot on rk3328.
+
+Get the Source and prebuild binary
+==================================
+
+  > mkdir ~/evb_rk3328
+  > cd ~/evb_rk3328
+  > git clone https://github.com/ARM-software/arm-trusted-firmware.git
+  > git clone https://github.com/rockchip-linux/rkbin
+  > git clone https://github.com/rockchip-linux/rkflashtool
+
+Compile ATF
+===============
+
+  > cd arm-trusted-firmware
+  > make realclean
+  > make CROSS_COMPILE=aarch64-linux-gnu- PLAT=rk3328 bl31
+
+Compile U-Boot
+==================
+
+  > cd ../u-boot
+  > make CROSS_COMPILE=aarch64-linux-gnu- evb-rk3328_defconfig all
+
+Compile rkflashtool
+=======================
+
+  > cd ../rkflashtool
+  > make
+
+Package image for miniloader
+================================
+  > cd ..
+  > cp arm-trusted-firmware/build/rk3328/release/bl31.bin rkbin/rk33
+  > ./rkbin/tools/trust_merger rkbin/tools/RK3328TRUST.ini
+  > ./rkbin/tools/loaderimage --pack --uboot u-boot/u-boot-dtb.bin uboot.img
+  > mkdir image
+  > mv trust.img ./image/
+  > mv uboot.img ./image/rk3328evb-uboot.bin
+
+Flash image
+===============
+Power on(or reset with RESET KEY) with MASKROM KEY preesed, and then:
+
+  > ./rkflashtool/rkflashloader rk3328evb
+
+You should be able to get U-Boot log message in console/UART2 now.
diff --git a/board/rockchip/evb_rk3328/evb-rk3328.c b/board/rockchip/evb_rk3328/evb-rk3328.c
new file mode 100644
index 0000000..7e70f38
--- /dev/null
+++ b/board/rockchip/evb_rk3328/evb-rk3328.c
@@ -0,0 +1,40 @@
+/*
+ * (C) Copyright 2016 Rockchip Electronics Co., Ltd
+ *
+ * SPDX-License-Identifier:     GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/armv8/mmu.h>
+#include <dwc3-uboot.h>
+#include <usb.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+int board_init(void)
+{
+	return 0;
+}
+
+int dram_init(void)
+{
+	gd->ram_size = 0x80000000;
+	return 0;
+}
+
+void dram_init_banksize(void)
+{
+	/* Reserve 0x200000 for ATF bl31 */
+	gd->bd->bi_dram[0].start = 0x200000;
+	gd->bd->bi_dram[0].size = 0x7e000000;
+}
+
+int usb_gadget_handle_interrupts(void)
+{
+	return 0;
+}
+
+int board_usb_init(int index, enum usb_init_type init)
+{
+	return 0;
+}