Tim Wawrzynczak has uploaded this change for review.
soc/intel/jasperlake: Add PCH PCIe RPs wake up events to event log
All wakes by a PCH PCIe root port were lumped under one event source;
this commit splits them up so each root port gets its own ID in the
event log.
BUG=b:172279061
BRANCH=volteer
Change-Id: Icdb10043700c20ddb6ae93747a731005fd233a70
Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
---
M src/soc/intel/jasperlake/elog.c
1 file changed, 41 insertions(+), 3 deletions(-)
git pull ssh://review.coreboot.org:29418/coreboot refs/changes/83/47183/1
diff --git a/src/soc/intel/jasperlake/elog.c b/src/soc/intel/jasperlake/elog.c
index 235dc6e..d383924 100644
--- a/src/soc/intel/jasperlake/elog.c
+++ b/src/soc/intel/jasperlake/elog.c
@@ -2,11 +2,14 @@
#include <bootstate.h>
#include <console/console.h>
-#include <stdint.h>
+#include <device/pci_ops.h>
#include <elog.h>
#include <intelblocks/pmclib.h>
#include <soc/pci_devs.h>
#include <soc/pm.h>
+#include <stdint.h>
+
+#define PCIE_ROOT_PORT_STATUS 0x60
static void pch_log_gpio_gpe(u32 gpe0_sts, u32 gpe0_en, int start)
{
@@ -20,6 +23,41 @@
}
}
+static void pch_log_rp_wake_source(void)
+{
+ size_t i;
+ struct pme_map {
+ pci_devfn_t devfn;
+ unsigned int wake_source;
+ };
+
+ const struct pme_map pme_map[] = {
+ { PCH_DEVFN_PCIE1, ELOG_WAKE_SOURCE_PME_PCIE1 },
+ { PCH_DEVFN_PCIE2, ELOG_WAKE_SOURCE_PME_PCIE2 },
+ { PCH_DEVFN_PCIE3, ELOG_WAKE_SOURCE_PME_PCIE3 },
+ { PCH_DEVFN_PCIE4, ELOG_WAKE_SOURCE_PME_PCIE4 },
+ { PCH_DEVFN_PCIE5, ELOG_WAKE_SOURCE_PME_PCIE5 },
+ { PCH_DEVFN_PCIE6, ELOG_WAKE_SOURCE_PME_PCIE6 },
+ { PCH_DEVFN_PCIE7, ELOG_WAKE_SOURCE_PME_PCIE7 },
+ { PCH_DEVFN_PCIE8, ELOG_WAKE_SOURCE_PME_PCIE8 },
+ { PCH_DEVFN_PCIE9, ELOG_WAKE_SOURCE_PME_PCIE9 },
+ { PCH_DEVFN_PCIE10, ELOG_WAKE_SOURCE_PME_PCIE10 },
+ { PCH_DEVFN_PCIE11, ELOG_WAKE_SOURCE_PME_PCIE11 },
+ { PCH_DEVFN_PCIE12, ELOG_WAKE_SOURCE_PME_PCIE12 },
+ };
+
+ for (i = 0; i < MIN(CONFIG_MAX_ROOT_PORTS, ARRAY_SIZE(pme_map)); ++i) {
+ const uint32_t pme_status = pci_s_read_config32(
+ pme_map[i].devfn,
+ PCIE_ROOT_PORT_STATUS);
+
+ if (pme_status == 0xFFFFFFFF || !(pme_status & BIT(16)))
+ continue;
+
+ elog_add_event_wake(pme_map[i].wake_source, 0);
+ }
+}
+
static void pch_log_wake_source(struct chipset_power_state *ps)
{
/* Power Button */
@@ -30,9 +68,9 @@
if (ps->pm1_sts & RTC_STS)
elog_add_event_wake(ELOG_WAKE_SOURCE_RTC, 0);
- /* PCI Express (TODO: determine wake device) */
+ /* PCI Express */
if (ps->pm1_sts & PCIEXPWAK_STS)
- elog_add_event_wake(ELOG_WAKE_SOURCE_PCIE, 0);
+ pch_log_rp_wake_source();
/* PME (TODO: determine wake device) */
if (ps->gpe0_sts[GPE_STD] & PME_STS)
To view, visit change 47183. To unsubscribe, or for help writing mail filters, visit settings.