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Re: specific platform check in driver match routine
On 06/10/13 12:12, Martin Husemann wrote:
I believe the Atom E6xx LPC bridge is common to all Atoms of the class.
So that does
On Mon, Jun 10, 2013 at 11:51:27AM +0200, Frank Kardel wrote:
platform. E.g. isa bus based GPIO registers there are present on a
Soekris net6501 only.
Often in such cases the pci bridges have specific PCI IDs that can be used
to positively identify the system. You can use pci_find_device() then.
Another option (if you can identify the device by other means earlier)
is to create device-properties on the parent device and have the match
function check those.
not seem to help identifying the system.
An option would be to transfer the oem_id and product id from the
the properties of the mainbus device (likewise dig out similar
information from the APCI scan).
The dmesg starts like this:
NetBSD 6.99.21 (GATEWAY) #12: Sun Jun 9 17:29:45 CEST 2013
total memory = 2047 MB
avail memory = 1971 MB
timecounter: Timecounters tick every 10.000 msec
timecounter: Timecounter "i8254" frequency 1193182 Hz quality 100
acpi_probe: failed to initialize tables
mainbus0: Intel MP Specification (Version 1.4) (Soekris net6501 )
cpu0 at mainbus0 apid 0: Genuine Intel(R) CPU @ 1.60GHz, id 0x20661
cpu1 at mainbus0 apid 1: Genuine Intel(R) CPU @ 1.60GHz, id 0x20661
mpbios: bus 0 is type PCI
mpbios: bus 64 is type ISA
ioapic0 at mainbus0 apid 0: pa 0xfec00000, version 20, 24 pins
pci0 at mainbus0 bus 0: configuration mode 1
pci0: i/o space, memory space enabled, rd/line, rd/mult, wr/inv ok
pchb0 at pci0 dev 0 function 0: vendor 0x8086 product 0x4114 (rev. 0x05)
pchb1 at pci0 dev 1 function 0: vendor 0x8086 product 0x8183 (rev. 0x00)
ppb0 at pci0 dev 23 function 0: vendor 0x8086 product 0x8184 (rev. 0x00)
ppb0: PCI Express 1.0 <Root Port of PCI-E Root Complex> x1 @ 2.5Gb/s
The "Soekris" "net6501" is only present (and mapped) in mpbios_scan().
Would generally adding device properties to mainbus make sense/be useful
for other things?
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