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soc/intel/apollolake: Bypass FSP's deassertion of PERST# signal. 

BUG=b:76058338
BRANCH=None
TEST=Build coreboot for Octopus board.

Change-Id: I1858c7843d16b6b63fc30762a889916bbb9b781a
Signed-off-by: Shamile Khan <shamile.khan@intel.com>
Reviewed-on: https://review.coreboot.org/25311
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Shamile Khan 2018-03-21 14:43:42 -07:00 committed by Furquan Shaikh
parent 5b2a4b4087
commit 3d9462a07f
1 changed files with 11 additions and 0 deletions
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11
src/soc/intel/apollolake/romstage.c
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@ -304,6 +304,17 @@ static void soc_memory_init_params(FSPM_UPD *mupd)
die("Can not find SoC devicetree\n");
m_cfg->PrmrrSize = config->PrmrrSize;
/* FSP performs a PERST# signal deassertion for PCIe ports with
* the GPIO address specified in these UPDs. Over-ride the default
* addresses with 0 to bypass PERST# signal deassertion in FSP.
*/
m_cfg->RootPort0Perst = 0;
m_cfg->RootPort1Perst = 0;
m_cfg->RootPort2Perst = 0;
m_cfg->RootPort3Perst = 0;
m_cfg->RootPort4Perst = 0;
m_cfg->RootPort5Perst = 0;
#endif
}