Also there are 0 acpi interrupts in /proc/acpi/interrupts #cat /proc/interrupts | grep -i acpi 9: 0 0 IO-APIC-fasteoi acpi
On Fri, Nov 28, 2014 at 11:13 PM, Gailu Singh <[email protected]> wrote: > When tracing the problem I found that there is no GPE events getting > triggered even though they are enabled. All the gpe interrupt counters are > zero in /sys/firmware/acpi/interrupts. GPE0a_EN register has desired bits > enabled. Any idea what could be the reason for not getting GPE events? > > On Fri, Nov 28, 2014 at 3:52 PM, WANG FEI <[email protected]> wrote: > >> Guilu, >> >> About the item 2, please refer to >> https://www.pcisig.com/specifications/conventional/pcipm1.2.pdf, chapter >> 3, my experience is based on this spec. I bet PCIE devices should be >> compatible with this doc. >> >> This doc will focus on PCI/PCIE devices behind PCI/PCIE bridges/root >> ports, it's described how to configure the PCI/PCIE devices to wake >> themselves from PME signals. This job suppose to be done before system >> sleep(S1/S3/S4/S5). >> >> -Fei >> >> On Fri, Nov 28, 2014 at 6:42 AM, Gailu Singh <[email protected]> wrote: >> >>> Hi Wang Fei, >>> >>> Thank you very much for your help. I checked the things you suggested >>> but still it does not work. Here are some details. >>> >>> >>1) SoC ACPI registers: Enable PCIE PME in PM and GPE registers. >>> You are right PCIE Wake was disabled in smm.c I enabled it >>> - enable_pm1(PWRBTN_EN | GBL_EN | PCIEXPWAK_DIS); >>> + enable_pm1(PWRBTN_EN | GBL_EN); >>> I Enabled GPE registers as well >>> + enable_gpe(PCI_EXP_EN | PCIE_WAKE1_EN | PCIE_WAKE2_EN >>> | SUS_GPIO_EN1 | SUS_GPIO_EN2); >>> >>> >>3) Report WOL PME single in ASL _GPE{} with _Lxx method >>> I have _Lxx methods in GPE as below >>> Method(_L11) { >>> Notify(PWRB, 0x02) /* NOTIFY_DEVICE_WAKE */ >>> } >>> >>> >> 4) (Option) If WOL PME single connect a GPIO, you have to configure >>> GPIO pin as well. >>> I tried configuring GPIO in gpio.c as GPIO_ACPI_WAKE and >>> GPIO_ACPI_SCI >>> - GPIO_DEFAULT, /* GPIO_S5[01] */ >>> - GPIO_DEFAULT, /* GPIO_S5[02] */ >>> + GPIO_ACPI_WAKE, /* GPIO_S5[01] */ >>> + GPIO_ACPI_WAKE, /* GPIO_S5[02] */ >>> >>> >>2) PCIE Card ACPI register: Yeah, you need set some registers of the >>> PCIE card to allow it waked by packages. >>> I am not clear about this. Can you please elaborate little more >>> on this. Do I need it to wake SoC or is it required for SoC to wake PCIe >>> card after resume? From power button resume card works fine post resume. >>> >>> Am I doing something wrong in the first three things you suggested? >>> >>> Best Regards >>> >>> On Wed, Nov 26, 2014 at 8:33 PM, WANG FEI <[email protected]> >>> wrote: >>> >>>> I remember WOL PME wakeup function need configure 3-4 different areas, >>>> >>>> 1) SoC ACPI registers: Enable PCIE PME in PM and GPE registers. >>>> >>>> 2) PCIE Card ACPI register: Yeah, you need set some registers of the >>>> PCIE card to allow it waked by packages. >>>> >>>> 3) Report WOL PME single in ASL _GPE{} with _Lxx method >>>> >>>> 4) (Option) If WOL PME single connect a GPIO, you have to configure >>>> GPIO pin as well. >>>> >>>> Please check your code and see if anything missed. >>>> >>>> On Tue, Nov 25, 2014 at 2:27 PM, Gailu Singh <[email protected]> wrote: >>>> >>>>> Hi Sean, >>>>> >>>>> Thanks for your help and showing me the direction. You are right GPIO >>>>> pins for PMC_WAKE_PCIE were set to GPIO_DEFAULT in >>>>> src/mainboard/intel/bayleybay_fsp/gpio.c. I have changed that to >>>>> GPIO_ACPI_WAKE now. This seems to be one step closer to the solution but >>>>> looks like something still missing as wakeup from PCIE device is still not >>>>> working with coreboot. Any other thing that I should look at? >>>>> >>>>> Best Regards >>>>> >>>>> >>Perhaps you do not have all your GPIO pins set properly. >>>>> >>>>> On Mon, Nov 24, 2014 at 5:04 PM, Gailu Singh <[email protected]> >>>>> wrote: >>>>> >>>>>> Hi Experts, >>>>>> >>>>>> I have PCIe card that supports wake on lan and it works fine with >>>>>> BIOS. On sending magic packet System wakes up from S3. >>>>>> >>>>>> However If I use same Linux image with coreboot wake from PCI device >>>>>> does not wake the system. System wakes up from S3 using power button >>>>>> only. >>>>>> >>>>>> I suspected the problem with dsdt and took dsdt binary from bios >>>>>> setup, disassembled it and replaced dsdt.asl in coreboot with the one >>>>>> from >>>>>> bios to match dsdt configuration. Now my dsdt and linux image are same >>>>>> but >>>>>> still system does not wake from PCI PME (WOL) in coreboot but works fine >>>>>> with bios. >>>>>> >>>>>> In both cases wakeup is enabled in >>>>>> /sys/bus/pci/devices/0000\:01\:00.0/power/wakeup >>>>>> >>>>>> Can you please advise what else could be the problem? >>>>>> >>>>>> PME signal is connected to GPIOS5 on the SoC. >>>>>> >>>>>> Best Regards >>>>>> >>>>>> >>>>> >>>>> -- >>>>> coreboot mailing list: [email protected] >>>>> http://www.coreboot.org/mailman/listinfo/coreboot >>>>> >>>> >>>> >>> >> >
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