baytrail: don't allow PCIE wake ups
The PCIe subsystem was constantly waking up boards from S3 and S5. Completely disable PCIe wake ups. It can be made mainboard-configurable later if needed. BUG=chrome-os-partner:24004 BRANCH=None TEST=Both S3 and EC RW->RW update (trip through S5) don't cause wakeups. Change-Id: I922e2947c4b6e29277d913f06192601a2954f8fe Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/176791 Reviewed-by: Shawn Nematbakhsh <shawnn@chromium.org> Reviewed-on: http://review.coreboot.org/4972 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
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@ -93,8 +93,8 @@ void southcluster_smm_enable_smi(void)
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{
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printk(BIOS_DEBUG, "Enabling SMIs.\n");
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/* Configure events */
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enable_pm1(PWRBTN_EN | GBL_EN);
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/* Configure events Disable pcie wake. */
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enable_pm1(PWRBTN_EN | GBL_EN | PCIEXPWAK_DIS);
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disable_gpe(PME_B0_EN);
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/* Set up the GPIO route. */
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