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doc: rockchip: Document SPI flash program steps

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Document SPI flash program steps for rockchip platforms.

Suggested-by: Hugh Cole-Baker <sigmaris@gmail.com>
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
This commit is contained in:
Jagan Teki 2020-06-04 20:21:41 +05:30 committed by Kever Yang
parent 1831191b18
commit dd397609fc
1 changed files with 25 additions and 1 deletions
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26
doc/board/rockchip/rockchip.rst
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@ -163,6 +163,30 @@ Program the flash::
Note: for rockchip 32-bit platforms the U-Boot proper image
is u-boot-dtb.img
SPI
^^^
Generating idbloader for SPI boot would require to input a multi image
image format to mkimage tool instead of concerting (like for MMC boot).
SPL-alone SPI boot image::
./tools/mkimage -n rk3399 -T rkspi -d spl/u-boot-spl.bin idbloader.img
TPL+SPL SPI boot image::
./tools/mkimage -n rk3399 -T rkspi -d tpl/u-boot-tpl.bin:spl/u-boot-spl.bin idbloader.img
Copy SPI boot images into SD card and boot from SD::
sf probe
load mmc 1:1 $kernel_addr_r idbloader.img
sf erase 0 +$filesize
sf write $kernel_addr_r 0 ${filesize}
load mmc 1:1 ${kernel_addr_r} u-boot.itb
sf erase 0x60000 +$filesize
sf write $kernel_addr_r 0x60000 ${filesize}
TODO
----
@ -172,4 +196,4 @@ TODO
- Add missing SoC's with it boards list
.. Jagan Teki <jagan@amarulasolutions.com>
.. Sunday 24 May 2020 10:08:41 PM IST
.. Tuesday 02 June 2020 12:18:57 AM IST