[coreboot] USB keyboard wakeup from S3 Baytrail: Bayley Bay CRB
Gailu Singh
gailu96 at gmail.com
Sun Nov 16 19:03:08 CET 2014
Hi Experts,
I am trying to use ACPI_RESUME functionality of coreboot on Bayley Bay CRB
and unable to wakeup board with USB Keyboard. Board resumes with power
button only. Below is the detailed description.
1. I am using EHCI instead of XHCI as I need to support boot from USB in
grub.
2. Enabled S3 support in coreboot File:
src/soc/intel/fsp_baytrail/acpi/usb.asl, Chnage: Name (_PRW, Package(){ 13,
3 })
3. Linux Kernel Version: 3.10
In Linux I see following in /proc/acpi/wakeup
root at localhost:~# cat /proc/acpi/wakeup
Device S-state Status Sysfs node
EHC1 S3 *enabled pci:0000:00:1d.0
XHCI S3 *disabled
When I plugin USB keyboard following are logs
root at localhost:~# usb 1-1.2: new low-speed USB device number 3 using
ehci-pci
input: SIGMACHIP USB Keyboard as
/devices/pci0000:00/0000:00:1d.0/usb1/1-1/1-1.2/1-1.2:1.0/input/input3
hid-generic 0003:1C4F:0016.0001: input: USB HID v1.10 Keyboard [SIGMACHIP
USB Keyboard] on usb-0000:00:1d.0-1.2/input0
input: SIGMACHIP USB Keyboard as
/devices/pci0000:00/0000:00:1d.0/usb1/1-1/1-1.2/1-1.2:1.1/input/input4
hid-generic 0003:1C4F:0016.0002: input: USB HID v1.10 Device [SIGMACHIP USB
Keyboard] on usb-0000:00:1d.0-1.2/input1
Based on above information I tried to enable wakeup from USB keyboard as
follows
echo enabled > /sys/devices/pci0000\:00/0000\:00\:1d.0/usb1/power/wakeup
echo enabled > /sys/bus/usb/devices/1-1/power/wakeup
Still see the same entried in /proc/acpi/wakeup
root at localhost:~# cat /proc/acpi/wakeup
Device S-state Status Sysfs node
EHC1 S3 *enabled pci:0000:00:1d.0
XHCI S3 *disabled
Did pm-suspend. Following are the logs
root at localhost:~# pm-suspend
ata2.00: configured for UDMA/100
ata2: EH complete
PM: Syncing filesystems ... done.
Freezing user space processes ... (elapsed 0.01 seconds) done.
Freezing remaining freezable tasks ... (elapsed 0.01 seconds) done.
Suspending console(s) (use no_console_suspend to debug)
At this stage power to USB keyboard is off. No LED for Capslock. Nothing
happens when I press any key on the keyboard.
System resumes with power button with the following logs.
POST: 0x76
Finalize devices...
DOMAIN: 0000 final
FspNotify(EnumInitPhaseAfterPciEnumeration)
Devices finalized
BS: BS_POST_DEVICE times (us): entry 0 run 12389 exit 0
POST: 0x77
Trying to find the wakeup vector...
Looking on 000f0000 for valid checksum
Checksum 1 passed
Checksum 2 passed all OK
RSDP found at 000f0000
RSDT found at 7add7030 ends at 7add7068
FADT found at 7add9cf0
FACS found at 7add7210
OS waking vector is 0009c090
BS: BS_OS_RESUME_CHECK times (us): entry 0 run 26951 exit 0
POST: 0x78
Restore GNVS pointer to 0x7adfb000
POST: 0xfd
sd 1:0:0:0: [sda] Synchronizing SCSI cache
sd 1:0:0:0: [sda] Stopping disk
PM: suspend of devices complete after 601.507 msecs
------------[ cut here ]------------
WARNING: at /home/linux/3.10-r0/linux/drivers/clk/clk.c:842
__clk_disable+0x50/0x70()
Modules linked in:
CPU: 1 PID: 453 Comm: pm-suspend Not tainted 3.10.38 #1
Hardware name: Intel Bayley Bay CRB/Bayley Bay CRB, BIOS
4.0-7016-g0a66991-dirty 11/15/2014
00000000 00000000 f407de08 c181ea2c f407de30 c1036c7e c1a1541d c1a80588
0000034a c16ca130 c16ca130 f4d89420 f4d89420 c13d8bf0 f407de40 c1036d42
00000009 00000000 f407de4c c16ca130 00000246 f407de5c c16ca22a f4d89420
Call Trace:
[<c181ea2c>] dump_stack+0x16/0x18
[<c1036c7e>] warn_slowpath_common+0x5e/0x80
[<c16ca130>] ? __clk_disable+0x50/0x70
[<c16ca130>] ? __clk_disable+0x50/0x70
[<c13d8bf0>] ? dw_pci_resume_early+0x20/0x20
[<c1036d42>] warn_slowpath_null+0x22/0x30
[<c16ca130>] __clk_disable+0x50/0x70
[<c16ca22a>] clk_disable+0x1a/0x30
[<c13d7ca0>] dw_dma_suspend+0x20/0x30
[<c13d8c02>] dw_pci_suspend_late+0x12/0x20
[<c149f1bb>] dpm_run_callback.isra.3+0x2b/0x70
[<c1823d37>] ? _raw_spin_unlock_irq+0x17/0x40
[<c149f79d>] dpm_suspend_end+0x4d/0x490
[<c1079598>] suspend_devices_and_enter+0xf8/0x440
[<c181a528>] ? printk+0x50/0x52
[<c1079a90>] pm_suspend+0x1b0/0x220
[<c1078aab>] state_store+0x5b/0xb0
[<c1078a50>] ? wakeup_count_show+0x50/0x50
[<c1355997>] kobj_attr_store+0x17/0x30
[<c11905bb>] sysfs_write_file+0x9b/0x110
[<c1190520>] ? sysfs_open_file+0x1f0/0x1f0
[<c113aea9>] vfs_write+0x99/0x190
[<c113b481>] SyS_write+0x51/0x90
[<c182a5be>] sysenter_do_call+0x12/0x12
---[ end trace d63a3167b6ae1b8f ]---
------------[ cut here ]------------
WARNING: at /home/linux/3.10-r0/linux/drivers/clk/clk.c:751
__clk_unprepare+0x50/0x70()
Modules linked in:
CPU: 1 PID: 453 Comm: pm-suspend Tainted: G W 3.10.38 #1
Hardware name: Intel Bayley Bay CRB/Bayley Bay CRB, BIOS
4.0-7016-g0a66991-dirty 11/15/2014
00000000 00000000 f407de0c c181ea2c f407de34 c1036c7e c1a1541d c1a80588
000002ef c16cab60 c16cab60 f4d89420 f4c4c064 c13d8bf0 f407de44 c1036d42
00000009 00000000 f407de50 c16cab60 f4d89420 f407de5c c16cab97 f4d89420
Call Trace:
[<c181ea2c>] dump_stack+0x16/0x18
[<c1036c7e>] warn_slowpath_common+0x5e/0x80
[<c16cab60>] ? __clk_unprepare+0x50/0x70
[<c16cab60>] ? __clk_unprepare+0x50/0x70
[<c13d8bf0>] ? dw_pci_resume_early+0x20/0x20
[<c1036d42>] warn_slowpath_null+0x22/0x30
[<c16cab60>] __clk_unprepare+0x50/0x70
[<c16cab97>] clk_unprepare+0x17/0x20
[<c13d7ca7>] dw_dma_suspend+0x27/0x30
[<c13d8c02>] dw_pci_suspend_late+0x12/0x20
[<c149f1bb>] dpm_run_callback.isra.3+0x2b/0x70
[<c1823d37>] ? _raw_spin_unlock_irq+0x17/0x40
[<c149f79d>] dpm_suspend_end+0x4d/0x490
[<c1079598>] suspend_devices_and_enter+0xf8/0x440
[<c181a528>] ? printk+0x50/0x52
[<c1079a90>] pm_suspend+0x1b0/0x220
[<c1078aab>] state_store+0x5b/0xb0
[<c1078a50>] ? wakeup_count_show+0x50/0x50
[<c1355997>] kobj_attr_store+0x17/0x30
[<c11905bb>] sysfs_write_file+0x9b/0x110
[<c1190520>] ? sysfs_open_file+0x1f0/0x1f0
[<c113aea9>] vfs_write+0x99/0x190
[<c113b481>] SyS_write+0x51/0x90
[<c182a5be>] sysenter_do_call+0x12/0x12
---[ end trace d63a3167b6ae1b90 ]---
PM: late suspend of devices complete after 0.999 msecs
ehci-pci 0000:00:1d.0: System wakeup enabled by ACPI
PM: noirq suspend of devices complete after 33.501 msecs
ACPI: Preparing to enter system sleep state S3
PM: Saving platform NVS memory
Disabling non-boot CPUs ...
Broke affinity for irq 104
smpboot: CPU 1 is now offline
ACPI: Low-level resume complete
PM: Restoring platform NVS memory
Enabling non-boot CPUs ...
smpboot: Booting Node 0 Processor 1 APIC 0x4
Initializing CPU#1
Intel pstate controlling: cpu 1
CPU1 is up
ACPI: Waking up from system sleep state S3
ehci-pci 0000:00:1d.0: System wakeup disabled by ACPI
PM: noirq resume of devices complete after 187.013 msecs
PM: early resume of devices complete after 0.315 msecs
ata1: SATA link down (SStatus 0 SControl 300)
ata2: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
ata2.00: configured for UDMA/100
sd 1:0:0:0: [sda] Starting disk
PM: resume of devices complete after 2046.412 msecs
Restarting tasks ... done.
ata2.00: configured for UDMA/100
ata2: EH complete
root at localhost:~#
Any idea what do I need to enable USB keyboard wakeup
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