Re: Pandaboard ES

[Rui-Xiang Guo <rxg%lavabit.com@localhost>]

On Mon, May 01, 2023 at 07:31:07AM -0300, Jared McNeill wrote:
> The PANDABOARD kernel relies on firmware to program the base address of the
> GIC and local timers correctly in the CBAR cp15 register. Likely the reason
> that the GIC driver did not discover any valid sources:
> 
> > [   1.0000000] armgic0 at armperiph0: Generic Interrupt Controller, 32 sources (0 valid)
> > [   1.0000000] armgic0: 1 Priorities, 0 SPIs, 0 PPIs, 0 SGIs
> 
> With 0 valid sources, the A9 timer interrupt (and all others!) will not be
> available.

I found it also missed armscu_attach. When I tried to enable it by adding
MULTIPROCESSOR to conf/PANDABOARD, the new kernel just hang on very early
boot process.
[   1.0000000] uboot arg = 0xbdf44f98, 0, 0xbffaad5e, 0xbdf46b08
[   1.0000000] initarm: cbar=0x48240000
[   1.0000000] [ Kernel symbol table missing! ]

Any ideas?

-rxg