Hello Zoran,

I really appreciate your help. I was able to resolve the problem on late 
Friday. I cannot exactly tell what the reason was, however, I set up a fresh 
install of coreboot, just using my old .config and microcode. Then I saw that 
the board gets past the microcode update. I must have introduced a bug 
somewhere... sorry, for the noise...

Now the board stops at TempRamInit in FSP. I'm already using the FSP for 
Braswell from the Intel link you referenced. The function does not return, but 
the board shows me post code 0x52. I'm pretty sure the post code comes from FSP 
because I temporarily redirected all post codes to port 0x84 in the coreboot 
configuration.

>From src/drivers/intel/fsp1_1/cache_as_ram.inc I see that TempRamInit gets a 
>pointer to CAR_init_params which is generated from .config. Those values seem 
>okay.

#define CONFIG_CPU_MICROCODE_CBFS_LOC 0xFFE68400 #define 
CONFIG_CPU_MICROCODE_CBFS_LEN 0x10C00
#define CONFIG_ROM_SIZE               0x200000

Has anyone any experiences with FSP post codes? I can't find any documentation 
about that.

Thank you,
Alex
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