Le Tue, 22 Mar 2022 11:18:39 +0000, Eugen.Hristev@microchip.com a écrit :
On 3/11/22 11:35 AM, Clément Léger wrote:
Enable CONFIG_ATMEL_TCB_TIMER and disable CONFIG_ATMEL_PIT_TIMER. This will allow using the TCB timer instead of the PIT one when running under OP-TEE.
Hello Clement,
We have to make sure that the PIT_TIMER was not mandatory for SPL operations, and if it was, the TCB_TIMER successfully replaces it.
If we have the PIT_TIMER with the u-boot property u-boot,dm-pre-reloc; then the PIT_TIMER is available in the SPL and the SPL works :
RomBOOT ;4▒ls▒K{▒KOp▒C▒▒
<debug_uart>
U-Boot SPL 2022.04-rc4-00204-g5f7086d8a8-dirty (Mar 22 2022 - 13:10:58 +0200) SPL: Unsupported Boot Device! SPL: failed to boot from all boot devices
(well, it fails to boot because I removed the MMC drivers to have it smaller than 64k, but it boots)
However, with your patches, even if I add the pre-reloc property to the tcb nodes, it fails to boot:
RomBOOT ;4▒Ls▒k{▒kOp▒C▒▒
<debug_uart> Could not initialize timer (err -22)
Could not initialize timer (err -22)
Could not initialize timer (err -22)
Could not initialize timer (err -22)
...
Could you investigate this please ?
Hi Eugen,
Ok, I'll try to debug that !
Otherwise we cannot switch to using the TCB if it does not fully replace the PIT_TIMER in all the use cases.
Yes, that is completely understandable.
Thanks,
Eugen