Re: [BUG] rockchip: v2026.07 fails to boot on GameForce Ace (RK3588S)

+Cc Chris who maintains this board and may be able to help.

I somehow didn't receive this mail in my inbox, here's my attempt at 
quoting text from a mail I didn't receive (and it's also not available 
on lore.kernel.org...).

 > Hello,
 >
 > I am experiencing a total boot failure on the GameForce Ace handheld
 > console (Rockchip RK3588S) when trying to run mainline U-Boot
 > v2026.07.
 > The device fails to initialize or display any output during the
 > initial handshake.
 > Unfortunately, due to the tightly integrated form factor of this
 > handheld device, it is exceptionally difficult to break open the
 > casing and wire up a UART serial console to capture early boot logs.
 > The target operating system (Batocera Linux) environment is running
 > the mainline Linux 7.1.5 kernel.
 > Given the complete lack of visible console output, I wanted to check:
 >
 > 1. Has the GameForce Ace board target been actively tested with the
 > v2026.07 release?
 > 2. Are there any specific or updated build instructions, BL31/TPL/SPL
 > combinations, or proprietary Rockchip firmware binary requirements
 > (rkbin) needed for this release that may differ from previous
 > versions?
 >
 > For reference, the build configuration used was: gameforce-ace-> 
rk3588s_defconfig
 > TF-A / BL31 version: rk3588_ddr_lp4_2112MHz_lp5_2400MHz_v1.21.bin /
 > rk3588_bl31_v1.54.elf
 > Compiler: GCC 14.3
 > Linux 7.1.5 uses the rk3588s-gameforce-ace.dts
 >
 > Any guidance on known regressions regarding this target, or
 > recommendations on how to isolate the stage where it hangs without a
 > hardware UART, would be greatly appreciated.
 >

If you have a known working version of U-Boot, maybe start a bisect with 
that commit as good and 2026.07 as bad to isolate a commit that broke 
the board.

Cheers,
Quentin