[coreboot-gerrit] [M] Change in coreboot[master]: soc/intel/cse_lite: Back up PSR data during CSE FW downgrade

[Anil Kumar K (Code Review)]

Attention is currently required from: Jérémy Compostella, Krishna P Bhat D, Paul Menzel, Sridhar Siricilla.

Anil Kumar K has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/74577?usp=email )

Change subject: soc/intel/cse_lite: Back up PSR data during CSE FW downgrade
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Patch Set 43:

(1 comment)

File src/soc/intel/common/block/cse/cse_lite.c:

https://review.coreboot.org/c/coreboot/+/74577/comment/a7f41188_1d311a33 :
PS43, Line 760: if (cse_boot_to_rw(cse_bp_info) != CB_SUCCESS)
              : 		return;
when we switch to RW we do a global reset , following which the condition in line 1201 may not be satisfied and would end up returning without doing a downgrade.

if (CONFIG(SOC_INTEL_CSE_LITE_DEFER_DOWNGRADE)) {
    	if (deferred_call && !downgrade_req)
    		return;
    }