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soc/intel/cannonlake: Add support to log XHCI wake events 

Enhance elog wake source information with more details about which USB port
resulted in a wake from S3 or S0ix.

BUG=b:123429132
BRANCH=none
TEST=``FW_NAME=hatch emerge-hatch chromeos-ec depthcharge vboot_reference
libpayload coreboot-private-files intel-cmlfsp coreboot-private-files-hatch
coreboot chromeos-bootimage``
Ensure /build/hatch/firmware/image-hatch.serial.bin has been built.

Plug a keyboard into a USB port on the DUT.
Switch the DUT to the console (Ctrl-Alt-F2, or use the AP console via
servo).
On the console, run ``powerd_dbus_suspend``.
Wait for the DUT to enter low power mode.
Verify low power mode by issuing the ``powerinfo`` command on the EC
console (via servo). Expect to see ``power state 4 = S0ix``.
Press a key on the USB keyboard.
The DUT wakes up.
On the console, run ``mosys eventlog list`` and look for the wake source.

156 | 2019-06-26 09:46:07 | S0ix Enter
157 | 2019-06-26 12:14:05 | S0ix Exit
158 | 2019-06-26 12:14:05 | Wake Source | Internal PME | 0
159 | 2019-06-26 12:14:05 | Wake Source | GPE # | 109

Program image-hatch.serial.bin into the DUT using flashrom.
Repeat the ``powerd_dbus_suspend``, ``powerinfo``, ``mosys eventlog list``
sequence.

12 | 2019-06-26 14:52:23 | S0ix Enter
13 | 2019-06-26 14:53:07 | S0ix Exit
14 | 2019-06-26 14:53:07 | Wake Source | PME - XHCI (USB 2.0 port) | 3
15 | 2019-06-26 14:53:07 | Wake Source | GPE # | 109

Change-Id: Ie9ef870e219733dea9806c766f5351db25689b32
Signed-off-by: Paul Fagerburg <pfagerburg@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/33843
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
This commit is contained in:
Paul Fagerburg 2019-06-27 10:44:51 -06:00 committed by Martin Roth
parent 0476332161
commit 7803e487bd
2 changed files with 17 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
src/soc/intel/cannonlake/Kconfig
View File

@ -95,6 +95,8 @@ config CPU_SPECIFIC_OPTIONS
select SOC_INTEL_COMMON_BLOCK_GSPI_VERSION_2
select SOC_INTEL_COMMON_BLOCK_HDA
select SOC_INTEL_COMMON_BLOCK_SA
select SOC_INTEL_COMMON_BLOCK_XHCI
select SOC_INTEL_COMMON_BLOCK_XHCI_ELOG
select SOC_INTEL_COMMON_BLOCK_SMM
select SOC_INTEL_COMMON_BLOCK_SMM_IO_TRAP
select SOC_INTEL_COMMON_PCH_BASE

17
src/soc/intel/cannonlake/elog.c
View File

@ -20,9 +20,22 @@
#include <stdint.h>
#include <elog.h>
#include <intelblocks/pmclib.h>
#include <intelblocks/xhci.h>
#include <soc/pci_devs.h>
#include <soc/pm.h>
#define XHCI_USB2_PORT_STATUS_REG 0x480
#define XHCI_USB3_PORT_STATUS_REG 0x580
#define XHCI_USB2_PORT_NUM 14
#define XHCI_USB3_PORT_NUM 10
static const struct xhci_usb_info usb_info = {
.usb2_port_status_reg = XHCI_USB2_PORT_STATUS_REG,
.num_usb2_ports = XHCI_USB2_PORT_NUM,
.usb3_port_status_reg = XHCI_USB3_PORT_STATUS_REG,
.num_usb3_ports = XHCI_USB3_PORT_NUM,
};
static void pch_log_gpio_gpe(u32 gpe0_sts, u32 gpe0_en, int start)
{
int i;
@ -53,9 +66,9 @@ static void pch_log_wake_source(struct chipset_power_state *ps)
if (ps->gpe0_sts[GPE_STD] & PME_STS)
elog_add_event_wake(ELOG_WAKE_SOURCE_PME, 0);
/* Internal PME (TODO: determine wake device) */
/* XHCI - "Power Management Event Bus 0" events include XHCI */
if (ps->gpe0_sts[GPE_STD] & PME_B0_STS)
elog_add_event_wake(ELOG_WAKE_SOURCE_PME_INTERNAL, 0);
pch_xhci_update_wake_event(&usb_info);
/* SMBUS Wake */
if (ps->gpe0_sts[GPE_STD] & SMB_WAK_STS)