rockchip: rk3368: add Sheep board

Sheep board is designed by Rockchip as a EVB for rk3368.
Currently it is able to boot a linux kernel and system
to console with the miniloader run as fist level loader.

Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Andy Yan <andy.yan@rock-chips.com>

5 files changed, 109 insertions, 0 deletions

diff --git a/board/rockchip/sheep_rk3368/Kconfig b/board/rockchip/sheep_rk3368/Kconfig
new file mode 100644
index 0000000..d39b5e8
--- /dev/null
+++ b/board/rockchip/sheep_rk3368/Kconfig
@@ -0,0 +1,15 @@
+if TARGET_SHEEP
+
+config SYS_BOARD
+	default "sheep_rk3368"
+
+config SYS_VENDOR
+	default "rockchip"
+
+config SYS_CONFIG_NAME
+	default "sheep_rk3368"
+
+config BOARD_SPECIFIC_OPTIONS # dummy
+	def_bool y
+
+endif
diff --git a/board/rockchip/sheep_rk3368/MAINTAINERS b/board/rockchip/sheep_rk3368/MAINTAINERS
new file mode 100644
index 0000000..cd5de99
--- /dev/null
+++ b/board/rockchip/sheep_rk3368/MAINTAINERS
@@ -0,0 +1,6 @@
+RK3368 Sheep Board
+M:	Andy Yan <andy.yan@rock-chips.com>
+S:	Maintained
+F:	board/rockchip/sheep_rk3368
+F:	include/configs/sheep_rk3368.h
+F:	configs/sheep-rk3368_defconfig
diff --git a/board/rockchip/sheep_rk3368/Makefile b/board/rockchip/sheep_rk3368/Makefile
new file mode 100644
index 0000000..a38b9ce
--- /dev/null
+++ b/board/rockchip/sheep_rk3368/Makefile
@@ -0,0 +1,7 @@
+#
+# Copyright (c) 2017 Rockchip Electronics Co., Ltd
+#
+# SPDX-License-Identifier:	GPL-2.0+
+#
+
+obj-y	+= sheep_rk3368.o
diff --git a/board/rockchip/sheep_rk3368/README b/board/rockchip/sheep_rk3368/README
new file mode 100644
index 0000000..2d078cb
--- /dev/null
+++ b/board/rockchip/sheep_rk3368/README
@@ -0,0 +1,44 @@
+Here is the step-by-step to boot to U-Boot on rk3368.
+
+Get miniloader and trust.img form rockchip vendor u-boot source code
+==============================================================================
+  > git clone  https://github.com/rockchip-linux/u-boot.git rockchip-uboot
+  > cd rockchip-uboot
+  > make rk3368_defconfig /*chose px5_defconfig if you run a px5 platform here*/
+  > ./mkv8.sh
+
+Compile the upstream U-Boot
+===========================
+  > cd u-boot
+  > make CROSS_COMPILE=aarch64-linux-gnu- sheep-rk3368_defconfig  all
+
+Package u-boot for miniloader
+================================
+  > ../rockchip-uboot/tools/loaderimage --pack --uboot u-boot.bin u-boot.img
+
+Flash the image by rkdeveloptool
+================================
+rkdeveloptool can get from https://github.com/rockchip-linux/rkdeveloptool.git
+
+Power on(or reset with RESET KEY) with MASKROM KEY preesed, and then:
+  > rkdeveloptool db ./rockchip-uboot/rk3368_loader_v2.00.256.bin
+  > rkdeveloptool wl 0x6000 ./rockchip-uboot/trust.img
+  > rkdeveloptool wl 0x4000 ./u-boot/u-boot.img
+  > rkdeveloptool RD
+
+You should be able to get U-Boot log message from boot console:
+
+U-Boot 2017.05-rc3-01094-g9ddd1e8-dirty (May 15 2017 - 15:57:23 +0800)
+
+Model: Rockchip sheep board
+DRAM:  2 GiB
+MMC:   dwmmc@ff0f0000: 0
+Using default environment
+
+In:    serial@ff690000
+Out:   serial@ff690000
+Err:   serial@ff690000
+Net:   Net Initialization Skipped
+No ethernet found.
+Hit any key to stop autoboot:  0
+=>
diff --git a/board/rockchip/sheep_rk3368/sheep_rk3368.c b/board/rockchip/sheep_rk3368/sheep_rk3368.c
new file mode 100644
index 0000000..df1fd9d
--- /dev/null
+++ b/board/rockchip/sheep_rk3368/sheep_rk3368.c
@@ -0,0 +1,37 @@
+/*
+ * Copyright (c) 2017 Andy Yan
+ *
+ * SPDX-License-Identifier:     GPL-2.0+
+ */
+#include <common.h>
+#include <asm/io.h>
+#include <asm/arch/clock.h>
+#include <asm/arch/grf_rk3368.h>
+#include <syscon.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+int mach_cpu_init(void)
+{
+	return 0;
+}
+
+int board_init(void)
+{
+	return 0;
+}
+
+int dram_init(void)
+{
+	gd->ram_size = 0x80000000;
+
+	return 0;
+}
+
+int dram_init_banksize(void)
+{
+	gd->bd->bi_dram[0].start = 0x200000;
+	gd->bd->bi_dram[0].size = 0x7fe00000;
+
+	return 0;
+}