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soc/intel/tigerlake: Enable CSE Lite driver for TGL platform in romstage 

This patch sets up cse_fw_sync() call in the romstage. The cse_fw_sync()
must be called after DRAM initialization.

BUG=b:174694480
Test=Verified on Tigerlake platform

Signed-off-by: Sridhar Siricilla <sridhar.siricilla@intel.com>
Change-Id: Ib485a4d1d15989b162105deb32bb317d7a0f2856
Reviewed-on: https://review.coreboot.org/c/coreboot/+/48281
Reviewed-by: Furquan Shaikh <furquan@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Sridhar Siricilla 2020-12-04 02:32:21 +05:30 committed by Furquan Shaikh
parent 551bd92b2b
commit d9d711c7f5
1 changed files with 12 additions and 1 deletions
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13
src/soc/intel/tigerlake/romstage/romstage.c
View File

@ -135,6 +135,17 @@ void mainboard_romstage_entry(void)
s3wake = pmc_fill_power_state(ps) == ACPI_S3;
fsp_memory_init(s3wake);
pmc_set_disb();
if (!s3wake)
if (!s3wake) {
/*
* cse_fw_sync() must be called after DRAM initialization as
* HMRFPO_ENABLE HECI command (which is used by cse_fw_sync())
* is expected to be executed after DRAM initialization.
*/
if (CONFIG(SOC_INTEL_CSE_LITE_SKU))
cse_fw_sync();
save_dimm_info();
}
}