On Mon, 2015-10-26 at 08:51 +0000, Zha, Qipeng wrote:
> > So the ASL you provided was not what the Linux kernel is seeing,
> > correct?
>
> > Can you please provide a DSDT disassembly from the running Linux
> > system please, such as:
>
> > # cp /sys/firmware/acpi/tables/DSDT DSDT.dat # iasl -d DSDT.dat
>
> > Then find this device in DSDT.dsl and paste it here please.
>
> Sorry for late feedback, got dsdt from lab machine since my board
> got broken,
> Please check.
>
> Scope (\_SB)
> {
> Device (IPC1)
> {
> Name (_ADR, Zero) // _ADR: Address
> Name (_HID, "INT34D2") // _HID: Hardware ID
> Name (_CID, "INT34D2") // _CID: Compatible ID
> Name (_DDN, "Intel(R) IPCI controller ") // _DDN:
> DOS Device Name
> Name (_UID, One) // _UID: Unique ID
> Name (RBUF, ResourceTemplate ()
> {
> Memory32Fixed (ReadWrite,
> 0x00000000, // Address Base
> 0x00002000, // Address Length
> _Y08)
> Memory32Fixed (ReadWrite,
> 0x00000000, // Address Base
> 0x00000004, // Address Length
> _Y09)
> Memory32Fixed (ReadWrite,
> 0x00000000, // Address Base
> 0x00000040, // Address Length
> _Y0A)
> IO (Decode16,
> 0x0400, // Range Minimum
> 0x0480, // Range Maximum
> 0x04, // Alignment
> 0x80, // Length
> )
> Memory32Fixed (ReadWrite,
> 0x00000000, // Address Base
> 0x00002000, // Address Length
> _Y0B)
> Interrupt (ResourceConsumer, Level, ActiveLow,
> Exclusive, ,, )
> {
> 0x00000028,
> }
> })
> Method (_CRS, 0, NotSerialized) // _CRS: Current
> Resource Settings
> {
> CreateDWordField (RBUF, \_SB.IPC1._Y08._BAS,
> B0BA) // _BAS: Base Address
> CreateDWordField (RBUF, \_SB.IPC1._Y08._LEN,
> B0LN) // _LEN: Length
> Store (DD1A, B0BA)
> Store (DD1L, B0LN)
dd1a, dd1l has been stored to Resource 0
> CreateDWordField (RBUF, \_SB.IPC1._Y09._BAS,
> BM01) // _BAS: Base Address
> CreateDWordField (RBUF, \_SB.IPC1._Y09._LEN,
> BML1) // _LEN: Length
> CreateDWordField (RBUF, \_SB.IPC1._Y0A._BAS,
> BM02) // _BAS: Base Address
> CreateDWordField (RBUF, \_SB.IPC1._Y0A._LEN,
> BML2) // _LEN: Length
> Store (BMDA, BM01)
> Store (0x04, BML1)
> Store (BMIA, BM02)
> Store (0x40, BML2)
bmda, 0x04 -> Resource 1
bmia, 0x40 -> Resource 2
> CreateDWordField (RBUF, \_SB.IPC1._Y0B._BAS,
> B1BA) // _BAS: Base Address
> CreateDWordField (RBUF, \_SB.IPC1._Y0B._LEN,
> B1LN) // _LEN: Length
> Store (DD3A, B1BA)
> Store (DD3L, B1LN)
dd3a, dd3l -> Resource 3
Can you create a temporary method in the ->probe() of this driver to
iterate over resources and print them out? Or tell the values BIOS set
per values dd1a, dd1l, dd3a, dd3l, bmda, bmia.
AFAIU you are using only resources 0 and 1. Can you put here small
description of what each resource is meant for? (I guess couple of them
to P-Unit, and couple related to what you are trying to get, right?)
Also, it's not clear the purpose of IO resource. What is for?
> Return (RBUF)
> }
>
> Method (_STA, 0, NotSerialized) // _STA: Status
> {
> Return (0x0F)
> }
--
Andy Shevchenko <[email protected]>
Intel Finland Oy
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