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configs: add README.rockchip 

Short introduction of all rockchip platform defconfig.

Signed-off-by: Joseph Chen <chenjh@rock-chips.com>
Change-Id: I44b0621741e1b7fa3243a15e7313546bbd368d21
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Joseph Chen 2020-06-05 09:54:41 +08:00 committed by Jianhong Chen
parent 89a533b217
commit 15d854a192
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/*
* (C) Copyright 2020 Rockchip Electronics Co., Ltd
*
* SPDX-License-Identifier: GPL-2.0+
*/
All platform defconfigs of Rockchip SDK
=======================================
|-----------------------|-----------------------------|
| rv1108 | evb-rv1108_defconfig |
|-----------------------|-----------------------------|
| rv1126 | rv1126_defconfig |
|-----------------------|-----------------------------|
| rv1109 | rv1109.config |
|-----------------------|-----------------------------|
| rk1806 | rk1806_defconfig |
|-----------------------|-----------------------------|
| rk1808 | rk1808_defconfig |
|-----------------------|-----------------------------|
| rk3036 | rk3036_defconfig |
|-----------------------|-----------------------------|
| rk3128x | rk3128x_defconfig |
|-----------------------|-----------------------------|
| rk3126 | rk3126_defconfig |
|-----------------------|-----------------------------|
| rk322x | rk322x_defconfig |
|-----------------------|-----------------------------|
| rk3288 | rk3288_defconfig |
|-----------------------|-----------------------------|
| rk3368 | rk3368_defconfig |
|-----------------------|-----------------------------|
| rk3328 | rk3328_defconfig |
|-----------------------|-----------------------------|
| rk3399 | rk3399_defconfig |
|-----------------------|-----------------------------|
| rk3399pro | rk3399pro_defconfig |
|-----------------------|-----------------------------|
| rk3399pro-npu | rknpu-lion_defconfig |
|-----------------------|-----------------------------|
| rk3308 | rk3308_defconfig |
|-----------------------|-----------------------------|
| rk3308-aarch32 | rk3308-aarch32_defconfig |
|-----------------------|-----------------------------|
| px30 | px30_defconfig |
|-----------------------|-----------------------------|
| rk3326 | rk3326_defconfig |
|-----------------------|-----------------------------|
| rk3326-aarch32 | rk3326-aarch32_defconfig |
|-----------------------|-----------------------------|
We add config fragment support for some platform the name like: foo.config.
There is BASE_DEFCONFIG configure to indicate the base defconfig of it.
Usage example:
./make.sh rv1109
It equals: make rv1126_defconfig rv1109.config && make.
All rv1126 & rv1109 defconfigs
==============================
rv1126_defconfig
----------------
It provides the full features that what we want on rv1126.
rv1126-emmc-tb.config
---------------------
It provides the thunder boot feature on eMMC board of rv1126.
"tb": thunder-boot.
rv1126-spi-nor-tb.config
------------------------
Similar to rv1126-emmc-tb.config, it provides the thunder boot feature on spi nor
board of rv1126.
rv1126-usbplug.config
---------------------
It provides the open source usbplug support by U-Boot project.
There is ./usbplug.bin after compilation, that can be used to replace the usbplug
file in the rkbin project.
rv1126-ramboot.config
---------------------
It provides the ram boot features on rv1126, only U-Boot proper is build.
rv1126-mini-template_defconfig
------------------------------
It provides a template to generate <u-boot.bin> with small size for eMMC board with
some basic features, developer is easy to enable/disable more features base on it.
If developer wants to get a even smaller u-boot.bin, try to disable the following
configurations accordding to board requirement.
[*] Remove Power(15KB):
# CONFIG_DM_PMIC is not set
# CONFIG_DM_REGULATOR is not set
# CONFIG_DM_REGULATOR_FIXED is not set
# CONFIG_DM_PWM is not set
# CONFIG_DM_I2C is not set
[*] Remove USB(55KB):
# CONFIG_USB is not set
# CONFIG_PHY_ROCKCHIP_NANENG_USB2 is not set
- No USB is available that U-Boot fallbacks to bootrom download mode with Menu key.
- Recovery key is always used to enter recovery boot mode.
[*] Remove Command-interface(33KB):
# CONFIG_CMDLINE is not set
CONFIG_U_BOOT_CMD_ALWAYS=y
- Only the command that with U_BOOT_CMD_ALWAYS() delcared is available.
rv1109-[...].config
-------------------
It provides the almost features the same as rv1126-[...]_defconfig.