On Sat, Apr 05, 2025 at 06:02:37PM +0200, Mark Kettenis wrote: > > From: Jonas Karlman <jo...@kwiboo.se> > > Date: Sat, 5 Apr 2025 15:38:20 +0000 > > > > The BootROM in Rockchip SoCs will enter maskrom mode when boot firmware > > cannot be found in nand/spi/mmc storage. > > > > In maskrom mode the USB OTG port can accept one of two custom commands. > > > > Initially a 0x471 command to load TPL into SRAM. After TPL has been > > executed and it has returned back-to-BROM, a 0x472 command to load SPL > > into start of DRAM. > > > > This series adds two binman images that can be used to RAM boot from > > maskrom mode: > > - u-boot-rockchip-usb471.bin that contains TPL to init DRAM. > > - u-boot-rockchip-usb472.bin that contains SPL and the normal FIT > > payload with i.e. U-Boot proper, TF-A and FDT. > > > > These images can be used with rkbin tools/boot_merger to create a loader > > image to be used with rkdeveloptool or rockusb tools, e.g.: > > > > Create loader image: > > $ ../rkbin/tools/boot_merger ./RK3588MINIALL.ini > > > > Boot from maskrom: > > $ rkdeveloptool db u-boot-rockchip-rk3588-loader.bin > > or > > $ rockusb download-boot u-boot-rockchip-rk3588-loader.bin > > > > Or directly with tools such as rkflashtool or rkusbboot: > > > > $ rkflashtool l < u-boot-rockchip-usb471.bin > > $ rkflashtool L < u-boot-rockchip-usb472.bin > > or > > $ rkusbboot u-boot-rockchip-usb471.bin u-boot-rockchip-usb472.bin > > Hi Jonas, > > Would be great if you could document this, maybe in > doc/README.rockchup and/or doc/board/rockchip/rockchip.rst?
I would just note that doc/README.rockchup should have any content not found under doc/board/rockchip/ migrated there and then removed, thanks! -- Tom
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