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doc: rockchip: Update SPI flashing instruction

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Update documentation on how to write a bootable u-boot-rockchip-spi.bin
image into SPI flash. This removes the reference to a hardcoded and now
obsolete 0x60000 payload offset.

Also remove an obsolete reference to pad_cat.

Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Reviewed-by: Quentin Schulz <foss+u-boot@0leil.net>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
This commit is contained in:
Jonas Karlman 2023-07-28 11:38:40 +00:00 committed by Kever Yang
parent ee75f16868
commit 6ed39520a7
1 changed files with 5 additions and 21 deletions
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26
doc/board/rockchip/rockchip.rst
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@ -218,7 +218,7 @@ SD Card
^^^^^^^
All Rockchip platforms (except rk3128 which doesn't use SPL) are now
supporting a single boot image using binman and pad_cat.
supporting a single boot image using binman.
To write an image that boots from a SD card (assumed to be /dev/sda):
@ -269,31 +269,15 @@ is u-boot-dtb.img
SPI
^^^
The SPI boot method requires the generation of idbloader.img with help of the mkimage tool.
Write u-boot-rockchip-spi.bin to offset 0 of SPI flash.
SPL-alone SPI boot image:
.. code-block:: bash
./tools/mkimage -n rk3399 -T rkspi -d spl/u-boot-spl.bin idbloader.img
TPL+SPL SPI boot image:
.. code-block:: bash
./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:
Copy u-boot-rockchip-spi.bin into SD card and boot from SD:
.. code-block:: bash
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}
load mmc 1:1 $kernel_addr_r u-boot-rockchip-spi.bin
sf update $fileaddr 0 $filesize
2. Package the image with Rockchip miniloader
---------------------------------------------