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u-boot/board/rockchip/sheep_rk3368
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Kever Yang 975e4abad2 rockchip: correct the bank0 ram size 
The bank0 ram size should be the DRAM size minus reserved size,
the DRAM size may be 1GB, 2GB, 4GB, we can not hard code it.

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Added DECLARE_GLOBAL_DATA_PTR for RK3328, RK3368 and RK3399:
Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2017-07-11 12:13:45 +02:00
..
Kconfig rockchip: rk3368: add Sheep board 2017-06-07 07:29:20 -06:00
MAINTAINERS rockchip: rk3368: add Sheep board 2017-06-07 07:29:20 -06:00
Makefile rockchip: rk3368: add Sheep board 2017-06-07 07:29:20 -06:00
README rockchip: rk3368: add Sheep board 2017-06-07 07:29:20 -06:00
sheep_rk3368.c rockchip: correct the bank0 ram size 2017-07-11 12:13:45 +02:00

README 

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
=>