* R: Re: PCI device not working
@ 2012-10-04 12:24 Davide Viti
2012-10-04 13:14 ` Kumar Gala
0 siblings, 1 reply; 9+ messages in thread
From: Davide Viti @ 2012-10-04 12:24 UTC (permalink / raw)
To: galak; +Cc: linuxppc-dev
Hi,
it turns out that if define CONFIG_PCI_NOSCAN in u-boot (as per [1]), the=
=20
devide behind the second controller is detected by the Linux kernel.
Would=20
you suggest any particular patch I should apply to fix this (I'm using kern=
el=20
2.6.34)
thanx alot in advance
Davide
[1] http://permalink.gmane.org/gmane.
linux.ports.ppc.embedded/20140
>----Messaggio originale----
>Da:=20
zinosat@tiscali.it
>Data: 28/09/2012 16.48
>A: <galak@kernel.crashing.org>
>Cc:=20
<linuxppc-dev@lists.ozlabs.org>
>Ogg: R: Re: PCI device not working
>
>Hi=20
Kumar,
>
>>
>>It was, can you figure out in u-boot what exact config read on=20
>the bus would return the correct thing.
>>
>>The fact that when we probe the=20
>device at 0001:03 we should get back something like cfg_data=3D0xabba1b65
>>
>
>here=20
>follow some details about what is going on inside u-boot; verbosity=20
increases=20
>from [1] to [3]
>
> [1] PCI printouts when the board come up
> [2]=20
output of "pci=20
>[0-3] long" u-boot command
> [3] same as [1] but with debug=20
print inside=20
>indirect_read_config_##size() [drivers/pci/pci_indirect.c]
>
>if=20
you were curious=20
>about our u-boot board settings, please refer to:
>http:
//www.mail-archive.
>com/linuxppc-dev@lists.ozlabs.org/msg62007.html
>
>thanx=20
alot,
>Davide
>
>
>
>*************
>* [1] *
>*************
> PCIE1=20
used as Root Complex (base=20
>addr ffe09000)
> Scanning PCI bus 01
> 01 00 1b65 abba =20
>0280 00
> cfg_addr:ffe09000 cfg_data:
ffe09004 indirect_type:0
> =20
>PCIE1 on bus 00 - 01
>
>
> PCIE2 used as=20
Root Complex (base addr ffe0a000)
>
> Scanning PCI bus 03
> 03 00 1b65 abba 0280 00
> =20
>cfg_addr:ffe0a000 cfg_data:
ffe0a004 indirect_type:0
> PCIE2 on bus 02 - 03
>
>
>*************
>* =20
[2] *
>*************
>
>=3D> pci 0 long
>Scanning PCI devices=20
>on bus 0
>
>Found PCI device 00.00.00:
> vendor ID =3D 0x1957
> =20
>device=20
ID =3D 0x0100
> command register =3D 0x0006
> =20
>status register =3D 0x0010
> revision ID =3D 0x11
> =20
>class code =3D 0x0b (Processor)
> sub class code=20
=3D =20
>0x20
> programming interface =3D 0x00
> cache line=20
=3D 0x08
>
> latency time =3D 0x00
> header type=20
=3D 0x01
> =20
>BIST =3D 0x00
> base address=20
0 =3D 0xfff00000
> =20
>base address 1 =3D 0x00000000
> =20
primary bus number =3D 0x00
> =20
>secondary bus number =3D 0x01
> =20
subordinate bus number =3D 0x01
> =20
>secondary latency timer =3D 0x00
> =20
IO base =3D 0x00
> IO=20
>limit =3D 0x00
> =20
secondary status =3D 0x0000
> memory=20
>base =3D 0xa000
> memory limit =3D 0xa000
> prefetch=20
>memory base =3D =20
0x1001
> prefetch memory limit =3D 0x0001
> prefetch=20
>memory base upper=20
=3D 0x00000000
> prefetch memory limit upper =3D 0x00000000
> IO=20
>base upper 16=20
bits =3D 0x0000
> IO limit upper 16 bits =3D 0x0000
> =20
>expansion ROM=20
base address =3D 0x00000000
> interrupt line =3D 0x00
> =20
>interrupt=20
pin =3D 0x00
> bridge control =3D 0x0000
>
>=3D>=20
>pci 1=20
long
>Scanning PCI devices on bus 1
>
>Found PCI device 01.00.00:kk
> vendor=20
>ID =3D 0x1b65
> device ID =3D 0xabba
> =20
command=20
>register =3D 0x0006
> status register =3D 0x0010
> revision=20
>ID =3D 0x01
> class code =3D 0x02=20
(Network=20
>controller)
> sub class code =3D 0x80
> programming=20
interface=20
>=3D 0x00
> cache line =3D 0x08
> latency time=20
>=3D 0x00
> header type =3D 0x00
> BIST=20
>=3D 0x00
> base address 0 =3D 0xa0000000
> =20
base=20
>address 1 =3D 0xa0010000
> base address 2 =3D =20
0x00000000
>
> base address 3 =3D 0x00000000
> base address 4=20
=3D =20
>0x00000000
> base address 5 =3D 0x00000000
> =20
cardBus CIS pointer=20
>=3D 0x00000000
> sub system vendor ID =3D =20
0x0000
> sub system ID=20
>=3D 0x0000
> expansion ROM base address=20
=3D 0x00000000
> interrupt=20
>line =3D 0x00
> interrupt pin=20
=3D 0x01
> min Grant=20
>=3D 0x00
> max Latency=20
=3D 0x00
>
>=3D> pci 2 long
>
>Scanning PCI devices on bus 2
>
>Found PCI device 02.00.00:
> vendor ID=20
>=3D 0x1957
> device=20
ID =3D 0x0100
> command=20
>register =3D 0x0006
> =20
status register =3D 0x0010
> revision=20
>ID =3D 0x11
> =20
class code =3D 0x0b (Processor)
> =20
>sub class code=20
=3D 0x20
> programming interface =3D 0x00
> cache=20
>line=20
=3D 0x08
> latency time =3D 0x00
> header type=20
>=3D 0x01
> BIST =3D 0x00
> base address=20
0=20
>=3D 0xfff00000
> base address 1 =3D 0x00000000
> =20
primary=20
>bus number =3D 0x00
> secondary bus number =3D 0x01
> =20
subordinate=20
>bus number =3D 0x01
> secondary latency timer =3D 0x00
> =20
IO base=20
>=3D 0x00
> IO limit =3D 0x00
> =20
secondary=20
>status =3D 0x0000
> memory base =3D 0xb000
> memory=20
>limit =3D 0xb000
> prefetch memory base =3D =20
0x1001
> prefetch=20
>memory limit =3D 0x0001
> prefetch memory base upper=20
=3D 0x00000000
> =20
>prefetch memory limit upper =3D 0x00000000
> IO base upper 16=20
bits =3D 0x0000
>
> IO limit upper 16 bits =3D 0x0000
> expansion ROM=20
base address =3D =20
>0x00000000
> interrupt line =3D 0x00
> interrupt=20
pin =3D =20
>0x00
> bridge control =3D 0x0000
>
>=3D> pci 3=20
long
>Scanning PCI devices=20
>on bus 3
>
>Found PCI device 03.00.00:
> vendor=20
ID =3D 0x1b65
> =20
>device ID =3D 0xabba
> =20
command register =3D 0x0006
> =20
>status register =3D 0x0010
> revision ID =3D 0x01
> =20
>class code =3D 0x02=20
(Network controller)
> sub class code=20
>=3D 0x80
> programming=20
interface =3D 0x00
> cache line=20
>=3D 0x08
> latency time=20
=3D 0x00
> header type=20
>=3D 0x00
> BIST=20
=3D 0x00
> base address 0=20
>=3D 0xb0000000
> =20
base address 1 =3D 0xb0010000
> base=20
>address 2 =3D =20
0x00000000
> base address 3 =3D 0x00000000
>
> base address 4=20
=3D 0x00000000
> base address 5 =3D =20
>0x00000000
> =20
cardBus CIS pointer =3D 0x00000000
> sub system vendor ID=20
>=3D =20
0x0000
> sub system ID =3D 0x0000
> expansion ROM base=20
>address=20
=3D 0x00000000
> interrupt line =3D 0x00
> interrupt pin=20
>=3D 0x01
> min Grant =3D 0x00
> max Latency=20
>=3D 0x00
>
>
>*************
>* [3] *
>*************
>
> =20
PCIE1=20
>used as Root Complex (base addr ffe09000)
>b=3D0 d=3D0 f=3D0 (fbusno=3D0=20
itype=3D0=20
>cfg_adr=3Dffe09000 cfg_data=3Dffe09004) ofs=3D10 mask=3D0
>...
> Scanning=20
>PCI bus 01
>b=3D1 d=3D0 f=3D0 (fbusno=3D0 itype=3D0=20
cfg_adr=3Dffe09000 cfg_data=3Dffe09004)=20
>ofs=3De mask=3D3
>...
>b=3D1 d=3D0 f=3D0 (fbusno=3D0=20
itype=3D0 cfg_adr=3Dffe09000=20
>cfg_data=3Dffe09004) ofs=3D3c mask=3D3
> 01 00 =20
1b65 abba 0280 00
>b=3D1 d=3D1=20
>f=3D0 (fbusno=3D0 itype=3D0 cfg_adr=3Dffe09000=20
cfg_data=3Dffe09004) ofs=3De mask=3D3
>b=3D1 d=3D1=20
>f=3D0 (fbusno=3D0 itype=3D0=20
cfg_adr=3Dffe09000 cfg_data=3Dffe09004) ofs=3D0 mask=3D2
>...
>b=3D0=20
>d=3D0 f=3D0 (fbusno=3D0=20
itype=3D0 cfg_adr=3Dffe09000 cfg_data=3Dffe09004) ofs=3D9 mask=3D3
> =20
>PCIE1 on bus 00=20
- 01
>
> PCIE2 used as Root Complex (base addr ffe0a000)
>b=3D0=20
>d=3D0 f=3D0=20
(fbusno=3D2 itype=3D0 cfg_adr=3Dffe0a000 cfg_data=3Dffe0a004) ofs=3D10 mask=
=3D0
>b=3D0=20
>d=3D0=20
f=3D0 (fbusno=3D2 itype=3D0 cfg_adr=3Dffe0a000 cfg_data=3Dffe0a004) ofs=3D1=
0 mask=3D0
>...
>
>b=3D0 d=3D0 f=3D0 (fbusno=3D2 itype=3D0 cfg_adr=3Dffe0a000 cfg_data=3Dffe0=
a004) ofs=3D9 mask=3D3
>
> Scanning PCI bus 03
>b=3D1 d=3D0 f=3D0 (fbusno=3D2 itype=3D0=20
>cfg_adr=3Dffe0a000 cfg_data=3Dffe0a004) ofs=3De mask=3D3
>b=3D1 d=3D0 f=3D0 (fbusno=3D2=20
itype=3D0=20
>cfg_adr=3Dffe0a000 cfg_data=3Dffe0a004) ofs=3D0 mask=3D2
>...
>b=3D1 d=3D0 f=3D0=20
(fbusno=3D2=20
>itype=3D0 cfg_adr=3Dffe0a000 cfg_data=3Dffe0a004) ofs=3D3c mask=3D3
> =20
03 00 1b65 =20
>abba 0280 00
> cfg_addr:ffe0a000 cfg_data:ffe0a004 =20
indirect_type:0
>
>b=3D1 d=3D1 f=3D0 (fbusno=3D2 itype=3D0 cfg_adr=3Dffe0a000=20
cfg_data=3Dffe0a004) ofs=3De mask=3D3
>
>...
>b=3D0 d=3D0 f=3D0 (fbusno=3D2 itype=3D0=20
cfg_adr=3Dffe0a000 cfg_data=3Dffe0a004) ofs=3D9=20
>mask=3D3
> PCIE2 on bus 02 - 03
>
>
>
>Invita i tuoi amici e Tiscali ti premia! Il consiglio di un amico vale pi=
=C3=B9=20
di uno spot in TV. Per ogni nuovo abbonato 30 =E2=82=AC di premio per te e =
per lui! Un=20
amico al mese e parli e navighi sempre gratis: http://freelosophy.tiscali.i=
t/
Invita i tuoi amici e Tiscali ti premia! Il consiglio di un amico vale pi=
=C3=B9 di uno spot in TV. Per ogni nuovo abbonato 30 =E2=82=AC di premio pe=
r te e per lui! Un amico al mese e parli e navighi sempre gratis: http://fr=
eelosophy.tiscali.it/
^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: PCI device not working
2012-10-04 12:24 R: Re: PCI device not working Davide Viti
@ 2012-10-04 13:14 ` Kumar Gala
[not found] ` <CAKpAL0m3YnsbbGxL+ejfyE4zfGE5LD9Qxb7oobHVaAZGE1_Jnw@mail.gmail.com>
0 siblings, 1 reply; 9+ messages in thread
From: Kumar Gala @ 2012-10-04 13:14 UTC (permalink / raw)
To: Davide Viti; +Cc: linuxppc-dev
On Oct 4, 2012, at 7:24 AM, Davide Viti wrote:
> Hi,
> it turns out that if define CONFIG_PCI_NOSCAN in u-boot (as per [1]), =
the=20
> devide behind the second controller is detected by the Linux kernel.
>=20
> Would=20
> you suggest any particular patch I should apply to fix this (I'm using =
kernel=20
> 2.6.34)
>=20
> thanx alot in advance
> Davide
>=20
> [1] http://permalink.gmane.org/gmane.
> linux.ports.ppc.embedded/20140
My suggestion would be to try and dump all the controller registers =
between the case that works and doesn't and compare. There's some minor =
setting difference that I'm guessing is causing issues.
- k
>=20
>> ----Messaggio originale----
>> Da:=20
> zinosat@tiscali.it
>> Data: 28/09/2012 16.48
>> A: <galak@kernel.crashing.org>
>> Cc:=20
> <linuxppc-dev@lists.ozlabs.org>
>> Ogg: R: Re: PCI device not working
>>=20
>> Hi=20
> Kumar,
>>=20
>>>=20
>>> It was, can you figure out in u-boot what exact config read on=20
>=20
>> the bus would return the correct thing.
>>>=20
>>> The fact that when we probe the=20
>=20
>> device at 0001:03 we should get back something like =
cfg_data=3D0xabba1b65
>>>=20
>>=20
>=20
>> here=20
>> follow some details about what is going on inside u-boot; verbosity=20=
> increases=20
>> from [1] to [3]
>>=20
>> [1] PCI printouts when the board come up
>> [2]=20
> output of "pci=20
>> [0-3] long" u-boot command
>> [3] same as [1] but with debug=20
> print inside=20
>> indirect_read_config_##size() [drivers/pci/pci_indirect.c]
>>=20
>> if=20
> you were curious=20
>> about our u-boot board settings, please refer to:
>> http:
> //www.mail-archive.
>> com/linuxppc-dev@lists.ozlabs.org/msg62007.html
>>=20
>> thanx=20
> alot,
>> Davide
>>=20
>>=20
>>=20
>> *************
>> * [1] *
>> *************
>> PCIE1=20
> used as Root Complex (base=20
>> addr ffe09000)
>> Scanning PCI bus 01
>=20
>> 01 00 1b65 abba =20
>> 0280 00
>> cfg_addr:ffe09000 cfg_data:
> ffe09004 indirect_type:0
>>=20
>> PCIE1 on bus 00 - 01
>>=20
>>=20
>> PCIE2 used as=20
> Root Complex (base addr ffe0a000)
>>=20
>> Scanning PCI bus 03
>=20
>> 03 00 1b65 abba 0280 00
>>=20
>> cfg_addr:ffe0a000 cfg_data:
> ffe0a004 indirect_type:0
>> PCIE2 on bus 02 - 03
>>=20
>>=20
>> *************
>> * =20
> [2] *
>> *************
>>=20
>> =3D> pci 0 long
>> Scanning PCI devices=20
>> on bus 0
>>=20
>=20
>> Found PCI device 00.00.00:
>> vendor ID =3D 0x1957
>>=20
>> device=20
> ID =3D 0x0100
>> command register =3D 0x0006
>>=20
>=20
>> status register =3D 0x0010
>> revision ID =3D 0x11
>>=20
>=20
>> class code =3D 0x0b (Processor)
>> sub class code=20
> =3D =20
>> 0x20
>> programming interface =3D 0x00
>> cache line=20
> =3D 0x08
>>=20
>> latency time =3D 0x00
>> header type=20
> =3D 0x01
>>=20
>> BIST =3D 0x00
>> base address=20
> 0 =3D 0xfff00000
>>=20
>> base address 1 =3D 0x00000000
>>=20
> primary bus number =3D 0x00
>>=20
>> secondary bus number =3D 0x01
>>=20
> subordinate bus number =3D 0x01
>>=20
>> secondary latency timer =3D 0x00
>>=20
> IO base =3D 0x00
>> IO=20
>> limit =3D 0x00
>>=20
> secondary status =3D 0x0000
>> memory=20
>> base =3D 0xa000
>=20
>> memory limit =3D 0xa000
>> prefetch=20
>> memory base =3D =20
> 0x1001
>> prefetch memory limit =3D 0x0001
>> prefetch=20
>> memory base upper=20
> =3D 0x00000000
>> prefetch memory limit upper =3D 0x00000000
>> IO=20
>> base upper 16=20
> bits =3D 0x0000
>> IO limit upper 16 bits =3D 0x0000
>>=20
>> expansion ROM=20
> base address =3D 0x00000000
>> interrupt line =3D 0x00
>>=20
>> interrupt=20
> pin =3D 0x00
>> bridge control =3D 0x0000
>>=20
>> =3D>=20
>> pci 1=20
> long
>> Scanning PCI devices on bus 1
>>=20
>> Found PCI device 01.00.00:kk
>> vendor=20
>=20
>> ID =3D 0x1b65
>> device ID =3D 0xabba
>>=20
> command=20
>> register =3D 0x0006
>> status register =3D 0x0010
>=20
>> revision=20
>> ID =3D 0x01
>> class code =3D 0x02=20
> (Network=20
>> controller)
>> sub class code =3D 0x80
>> programming=20
> interface=20
>> =3D 0x00
>> cache line =3D 0x08
>> latency time=20
>=20
>> =3D 0x00
>> header type =3D 0x00
>> BIST=20
>=20
>> =3D 0x00
>> base address 0 =3D 0xa0000000
>>=20
> base=20
>> address 1 =3D 0xa0010000
>> base address 2 =3D =20
> 0x00000000
>>=20
>> base address 3 =3D 0x00000000
>> base address 4=20
> =3D =20
>> 0x00000000
>> base address 5 =3D 0x00000000
>>=20
> cardBus CIS pointer=20
>> =3D 0x00000000
>> sub system vendor ID =3D =20
> 0x0000
>> sub system ID=20
>> =3D 0x0000
>> expansion ROM base address=20
> =3D 0x00000000
>> interrupt=20
>> line =3D 0x00
>> interrupt pin=20
> =3D 0x01
>> min Grant=20
>> =3D 0x00
>> max Latency=20
> =3D 0x00
>>=20
>> =3D> pci 2 long
>>=20
>> Scanning PCI devices on bus 2
>>=20
>=20
>> Found PCI device 02.00.00:
>> vendor ID=20
>> =3D 0x1957
>> device=20
> ID =3D 0x0100
>> command=20
>> register =3D 0x0006
>>=20
> status register =3D 0x0010
>> revision=20
>> ID =3D 0x11
>>=20
> class code =3D 0x0b (Processor)
>>=20
>> sub class code=20
> =3D 0x20
>> programming interface =3D 0x00
>> cache=20
>> line=20
> =3D 0x08
>> latency time =3D 0x00
>> header type=20
>=20
>> =3D 0x01
>> BIST =3D 0x00
>> base address=20
> 0=20
>> =3D 0xfff00000
>> base address 1 =3D 0x00000000
>>=20
> primary=20
>> bus number =3D 0x00
>> secondary bus number =3D 0x01
>>=20
> subordinate=20
>> bus number =3D 0x01
>> secondary latency timer =3D 0x00
>>=20
> IO base=20
>> =3D 0x00
>> IO limit =3D 0x00
>>=20
> secondary=20
>> status =3D 0x0000
>> memory base =3D 0xb000
>=20
>> memory=20
>> limit =3D 0xb000
>> prefetch memory base =3D =20
> 0x1001
>> prefetch=20
>> memory limit =3D 0x0001
>> prefetch memory base upper=20
> =3D 0x00000000
>>=20
>> prefetch memory limit upper =3D 0x00000000
>> IO base upper 16=20
> bits =3D 0x0000
>>=20
>> IO limit upper 16 bits =3D 0x0000
>> expansion ROM=20
> base address =3D =20
>> 0x00000000
>> interrupt line =3D 0x00
>> interrupt=20
> pin =3D =20
>> 0x00
>> bridge control =3D 0x0000
>>=20
>> =3D> pci 3=20
> long
>> Scanning PCI devices=20
>> on bus 3
>>=20
>> Found PCI device 03.00.00:
>> vendor=20
> ID =3D 0x1b65
>>=20
>> device ID =3D 0xabba
>>=20
> command register =3D 0x0006
>>=20
>> status register =3D 0x0010
>=20
>> revision ID =3D 0x01
>>=20
>> class code =3D 0x02=20
> (Network controller)
>> sub class code=20
>> =3D 0x80
>> programming=20
> interface =3D 0x00
>> cache line=20
>> =3D 0x08
>> latency time=20
> =3D 0x00
>> header type=20
>> =3D 0x00
>> BIST=20
> =3D 0x00
>> base address 0=20
>> =3D 0xb0000000
>>=20
> base address 1 =3D 0xb0010000
>> base=20
>> address 2 =3D =20
> 0x00000000
>> base address 3 =3D 0x00000000
>>=20
>> base address 4=20
> =3D 0x00000000
>> base address 5 =3D =20
>> 0x00000000
>>=20
> cardBus CIS pointer =3D 0x00000000
>> sub system vendor ID=20
>> =3D =20
> 0x0000
>> sub system ID =3D 0x0000
>> expansion ROM base=20
>> address=20
> =3D 0x00000000
>> interrupt line =3D 0x00
>> interrupt pin=20
>=20
>> =3D 0x01
>> min Grant =3D 0x00
>> max Latency=20
>=20
>> =3D 0x00
>>=20
>>=20
>> *************
>> * [3] *
>> *************
>>=20
>>=20
> PCIE1=20
>> used as Root Complex (base addr ffe09000)
>> b=3D0 d=3D0 f=3D0 (fbusno=3D0=20
> itype=3D0=20
>> cfg_adr=3Dffe09000 cfg_data=3Dffe09004) ofs=3D10 mask=3D0
>> ...
>=20
>> Scanning=20
>> PCI bus 01
>> b=3D1 d=3D0 f=3D0 (fbusno=3D0 itype=3D0=20
> cfg_adr=3Dffe09000 cfg_data=3Dffe09004)=20
>> ofs=3De mask=3D3
>> ...
>> b=3D1 d=3D0 f=3D0 (fbusno=3D0=20
> itype=3D0 cfg_adr=3Dffe09000=20
>> cfg_data=3Dffe09004) ofs=3D3c mask=3D3
>> 01 00 =20
> 1b65 abba 0280 00
>> b=3D1 d=3D1=20
>> f=3D0 (fbusno=3D0 itype=3D0 cfg_adr=3Dffe09000=20
> cfg_data=3Dffe09004) ofs=3De mask=3D3
>> b=3D1 d=3D1=20
>> f=3D0 (fbusno=3D0 itype=3D0=20
> cfg_adr=3Dffe09000 cfg_data=3Dffe09004) ofs=3D0 mask=3D2
>> ...
>> b=3D0=20
>> d=3D0 f=3D0 (fbusno=3D0=20
> itype=3D0 cfg_adr=3Dffe09000 cfg_data=3Dffe09004) ofs=3D9 mask=3D3
>>=20
>> PCIE1 on bus 00=20
> - 01
>>=20
>> PCIE2 used as Root Complex (base addr ffe0a000)
>> b=3D0=20
>> d=3D0 f=3D0=20
> (fbusno=3D2 itype=3D0 cfg_adr=3Dffe0a000 cfg_data=3Dffe0a004) ofs=3D10 =
mask=3D0
>> b=3D0=20
>> d=3D0=20
> f=3D0 (fbusno=3D2 itype=3D0 cfg_adr=3Dffe0a000 cfg_data=3Dffe0a004) =
ofs=3D10 mask=3D0
>> ...
>>=20
>=20
>> b=3D0 d=3D0 f=3D0 (fbusno=3D2 itype=3D0 cfg_adr=3Dffe0a000 =
cfg_data=3Dffe0a004) ofs=3D9 mask=3D3
>=20
>>=20
>> Scanning PCI bus 03
>> b=3D1 d=3D0 f=3D0 (fbusno=3D2 itype=3D0=20
>=20
>> cfg_adr=3Dffe0a000 cfg_data=3Dffe0a004) ofs=3De mask=3D3
>> b=3D1 d=3D0 f=3D0 (fbusno=3D2=20
> itype=3D0=20
>> cfg_adr=3Dffe0a000 cfg_data=3Dffe0a004) ofs=3D0 mask=3D2
>> ...
>> b=3D1 d=3D0 f=3D0=20
> (fbusno=3D2=20
>> itype=3D0 cfg_adr=3Dffe0a000 cfg_data=3Dffe0a004) ofs=3D3c mask=3D3
>>=20
> 03 00 1b65 =20
>> abba 0280 00
>> cfg_addr:ffe0a000 cfg_data:ffe0a004 =20
> indirect_type:0
>>=20
>> b=3D1 d=3D1 f=3D0 (fbusno=3D2 itype=3D0 cfg_adr=3Dffe0a000=20
> cfg_data=3Dffe0a004) ofs=3De mask=3D3
>>=20
>> ...
>> b=3D0 d=3D0 f=3D0 (fbusno=3D2 itype=3D0=20
> cfg_adr=3Dffe0a000 cfg_data=3Dffe0a004) ofs=3D9=20
>> mask=3D3
>> PCIE2 on bus 02 - 03
>>=20
>=20
>>=20
>>=20
>> Invita i tuoi amici e Tiscali ti premia! Il consiglio di un amico =
vale pi=F9=20
> di uno spot in TV. Per ogni nuovo abbonato 30 =80 di premio per te e =
per lui! Un=20
> amico al mese e parli e navighi sempre gratis: =
http://freelosophy.tiscali.it/
>=20
>=20
>=20
> Invita i tuoi amici e Tiscali ti premia! Il consiglio di un amico vale =
pi=F9 di uno spot in TV. Per ogni nuovo abbonato 30 =80 di premio per te =
e per lui! Un amico al mese e parli e navighi sempre gratis: =
http://freelosophy.tiscali.it/
^ permalink raw reply [flat|nested] 9+ messages in thread
* R: Re: PCI device not working
@ 2012-09-28 14:48 Davide Viti
0 siblings, 0 replies; 9+ messages in thread
From: Davide Viti @ 2012-09-28 14:48 UTC (permalink / raw)
To: galak; +Cc: linuxppc-dev
Hi Kumar,
>
>It was, can you figure out in u-boot what exact config read on=20
the bus would return the correct thing.
>
>The fact that when we probe the=20
device at 0001:03 we should get back something like cfg_data=3D0xabba1b65
>
here=20
follow some details about what is going on inside u-boot; verbosity increas=
es=20
from [1] to [3]
[1] PCI printouts when the board come up
[2] output of "pci=20
[0-3] long" u-boot command
[3] same as [1] but with debug print inside=20
indirect_read_config_##size() [drivers/pci/pci_indirect.c]
if you were curious=20
about our u-boot board settings, please refer to:
http://www.mail-archive.
com/linuxppc-dev@lists.ozlabs.org/msg62007.html
thanx alot,
Davide
*************
* [1] *
*************
PCIE1 used as Root Complex (base=20
addr ffe09000)
Scanning PCI bus 01
01 00 1b65 abba =20
0280 00
cfg_addr:ffe09000 cfg_data:ffe09004 indirect_type:0
=20
PCIE1 on bus 00 - 01
PCIE2 used as Root Complex (base addr ffe0a000)
Scanning PCI bus 03
03 00 1b65 abba 0280 00
=20
cfg_addr:ffe0a000 cfg_data:ffe0a004 indirect_type:0
PCIE2 on bus 02 - 03
*************
* [2] *
*************
=3D> pci 0 long
Scanning PCI devices=20
on bus 0
Found PCI device 00.00.00:
vendor ID =3D 0x1957
=20
device ID =3D 0x0100
command register =3D 0x0006
=20
status register =3D 0x0010
revision ID =3D 0x11
=20
class code =3D 0x0b (Processor)
sub class code =3D =20
0x20
programming interface =3D 0x00
cache line =3D 0x08
latency time =3D 0x00
header type =3D 0x01
=20
BIST =3D 0x00
base address 0 =3D 0xfff00000
=20
base address 1 =3D 0x00000000
primary bus number =3D 0x00
=20
secondary bus number =3D 0x01
subordinate bus number =3D 0x01
=20
secondary latency timer =3D 0x00
IO base =3D 0x00
IO=20
limit =3D 0x00
secondary status =3D 0x0000
memory=20
base =3D 0xa000
memory limit =3D 0xa000
prefetch=20
memory base =3D 0x1001
prefetch memory limit =3D 0x0001
prefetch=20
memory base upper =3D 0x00000000
prefetch memory limit upper =3D 0x00000000
IO=20
base upper 16 bits =3D 0x0000
IO limit upper 16 bits =3D 0x0000
=20
expansion ROM base address =3D 0x00000000
interrupt line =3D 0x00
=20
interrupt pin =3D 0x00
bridge control =3D 0x0000
=3D>=20
pci 1 long
Scanning PCI devices on bus 1
Found PCI device 01.00.00:kk
vendor=20
ID =3D 0x1b65
device ID =3D 0xabba
command=20
register =3D 0x0006
status register =3D 0x0010
revision=20
ID =3D 0x01
class code =3D 0x02 (Network=20
controller)
sub class code =3D 0x80
programming interface=20
=3D 0x00
cache line =3D 0x08
latency time=20
=3D 0x00
header type =3D 0x00
BIST=20
=3D 0x00
base address 0 =3D 0xa0000000
base=20
address 1 =3D 0xa0010000
base address 2 =3D 0x00000000
base address 3 =3D 0x00000000
base address 4 =3D =20
0x00000000
base address 5 =3D 0x00000000
cardBus CIS pointer=20
=3D 0x00000000
sub system vendor ID =3D 0x0000
sub system ID=20
=3D 0x0000
expansion ROM base address =3D 0x00000000
interrupt=20
line =3D 0x00
interrupt pin =3D 0x01
min Grant=20
=3D 0x00
max Latency =3D 0x00
=3D> pci 2 long
Scanning PCI devices on bus 2
Found PCI device 02.00.00:
vendor ID=20
=3D 0x1957
device ID =3D 0x0100
command=20
register =3D 0x0006
status register =3D 0x0010
revision=20
ID =3D 0x11
class code =3D 0x0b (Processor)
=20
sub class code =3D 0x20
programming interface =3D 0x00
cache=20
line =3D 0x08
latency time =3D 0x00
header type=20
=3D 0x01
BIST =3D 0x00
base address 0=20
=3D 0xfff00000
base address 1 =3D 0x00000000
primary=20
bus number =3D 0x00
secondary bus number =3D 0x01
subordinate=20
bus number =3D 0x01
secondary latency timer =3D 0x00
IO base=20
=3D 0x00
IO limit =3D 0x00
secondary=20
status =3D 0x0000
memory base =3D 0xb000
memory=20
limit =3D 0xb000
prefetch memory base =3D 0x1001
prefetch=20
memory limit =3D 0x0001
prefetch memory base upper =3D 0x00000000
=20
prefetch memory limit upper =3D 0x00000000
IO base upper 16 bits =3D 0x0000
IO limit upper 16 bits =3D 0x0000
expansion ROM base address =3D =20
0x00000000
interrupt line =3D 0x00
interrupt pin =3D =20
0x00
bridge control =3D 0x0000
=3D> pci 3 long
Scanning PCI devices=20
on bus 3
Found PCI device 03.00.00:
vendor ID =3D 0x1b65
=20
device ID =3D 0xabba
command register =3D 0x0006
=20
status register =3D 0x0010
revision ID =3D 0x01
=20
class code =3D 0x02 (Network controller)
sub class code=20
=3D 0x80
programming interface =3D 0x00
cache line=20
=3D 0x08
latency time =3D 0x00
header type=20
=3D 0x00
BIST =3D 0x00
base address 0=20
=3D 0xb0000000
base address 1 =3D 0xb0010000
base=20
address 2 =3D 0x00000000
base address 3 =3D 0x00000000
base address 4 =3D 0x00000000
base address 5 =3D =20
0x00000000
cardBus CIS pointer =3D 0x00000000
sub system vendor ID=20
=3D 0x0000
sub system ID =3D 0x0000
expansion ROM base=20
address =3D 0x00000000
interrupt line =3D 0x00
interrupt pin=20
=3D 0x01
min Grant =3D 0x00
max Latency=20
=3D 0x00
*************
* [3] *
*************
PCIE1=20
used as Root Complex (base addr ffe09000)
b=3D0 d=3D0 f=3D0 (fbusno=3D0 itype=3D0=20
cfg_adr=3Dffe09000 cfg_data=3Dffe09004) ofs=3D10 mask=3D0
...
Scanning=20
PCI bus 01
b=3D1 d=3D0 f=3D0 (fbusno=3D0 itype=3D0 cfg_adr=3Dffe09000 cfg_data=3Dffe09=
004)=20
ofs=3De mask=3D3
...
b=3D1 d=3D0 f=3D0 (fbusno=3D0 itype=3D0 cfg_adr=3Dffe09000=20
cfg_data=3Dffe09004) ofs=3D3c mask=3D3
01 00 1b65 abba 0280 00
b=3D1 d=3D1=20
f=3D0 (fbusno=3D0 itype=3D0 cfg_adr=3Dffe09000 cfg_data=3Dffe09004) ofs=3De=
mask=3D3
b=3D1 d=3D1=20
f=3D0 (fbusno=3D0 itype=3D0 cfg_adr=3Dffe09000 cfg_data=3Dffe09004) ofs=3D0=
mask=3D2
...
b=3D0=20
d=3D0 f=3D0 (fbusno=3D0 itype=3D0 cfg_adr=3Dffe09000 cfg_data=3Dffe09004) o=
fs=3D9 mask=3D3
=20
PCIE1 on bus 00 - 01
PCIE2 used as Root Complex (base addr ffe0a000)
b=3D0=20
d=3D0 f=3D0 (fbusno=3D2 itype=3D0 cfg_adr=3Dffe0a000 cfg_data=3Dffe0a004) o=
fs=3D10 mask=3D0
b=3D0=20
d=3D0 f=3D0 (fbusno=3D2 itype=3D0 cfg_adr=3Dffe0a000 cfg_data=3Dffe0a004) o=
fs=3D10 mask=3D0
...
b=3D0 d=3D0 f=3D0 (fbusno=3D2 itype=3D0 cfg_adr=3Dffe0a000 cfg_data=3Dffe0a=
004) ofs=3D9 mask=3D3
Scanning PCI bus 03
b=3D1 d=3D0 f=3D0 (fbusno=3D2 itype=3D0=20
cfg_adr=3Dffe0a000 cfg_data=3Dffe0a004) ofs=3De mask=3D3
b=3D1 d=3D0 f=3D0 (fbusno=3D2 itype=3D0=20
cfg_adr=3Dffe0a000 cfg_data=3Dffe0a004) ofs=3D0 mask=3D2
...
b=3D1 d=3D0 f=3D0 (fbusno=3D2=20
itype=3D0 cfg_adr=3Dffe0a000 cfg_data=3Dffe0a004) ofs=3D3c mask=3D3
03 00 1b65 =20
abba 0280 00
cfg_addr:ffe0a000 cfg_data:ffe0a004 indirect_type:0
b=3D1 d=3D1 f=3D0 (fbusno=3D2 itype=3D0 cfg_adr=3Dffe0a000 cfg_data=3Dffe0a=
004) ofs=3De mask=3D3
...
b=3D0 d=3D0 f=3D0 (fbusno=3D2 itype=3D0 cfg_adr=3Dffe0a000 cfg_data=3Dffe0a=
004) ofs=3D9=20
mask=3D3
PCIE2 on bus 02 - 03
Invita i tuoi amici e Tiscali ti premia! Il consiglio di un amico vale pi=
=C3=B9 di uno spot in TV. Per ogni nuovo abbonato 30 =E2=82=AC di premio pe=
r te e per lui! Un amico al mese e parli e navighi sempre gratis: http://fr=
eelosophy.tiscali.it/
^ permalink raw reply [flat|nested] 9+ messages in thread* R: Re: PCI device not working
@ 2012-09-27 13:14 Davide Viti
0 siblings, 0 replies; 9+ messages in thread
From: Davide Viti @ 2012-09-27 13:14 UTC (permalink / raw)
To: galak; +Cc: linuxppc-dev
Hi Kumar,
>----Messaggio originale----
>Da: galak@kernel.crashing.org
>Data:=20
27/09/2012 14.27
>A: "Davide Viti"<zinosat@tiscali.it>
>Cc: <linuxppc-dev@lists.
ozlabs.org>
>Ogg: Re: PCI device not working
>
...
>Can you see what bus_no=20
actually gets set to in the case we scan 0001:03 ?
>
>If its set to 03, can you=20
try hack it to 1.
is this what you mean?
---=20
a/arch/powerpc/sysdev/indirect_pci.c
+++ b/arch/powerpc/sysdev/indirect_pci.c
bus_no =3D (bus->number =3D=3D hose->first_busno) ?
=20
hose->self_busno : bus->number;
+ if (bus_no =3D=3D 3) {
+ printk
("*** force bus_no 3 -> 1 ***\n");
+ bus_no =3D 1;
+ }
+
I've=20
tested a kernel with the above patch and this is what is printed on the log=
:
pci_bus 0001:03: scanning bus
-> ind_r_config - [/pcie@ffe0a000] devfn=3D0x0=20
offset=3D0x0 len=3D0x4 hose->indirect_type=3D0x16 hose->first_busno=3D0x2 b=
us-
>number=3D0x3
*** force bus_no 3 -> 1 ***
-> ind_r_config [/pcie@ffe0a000] -=20
(bus_no=3D0x1 reg=3D0x0 cfg_data=3D0xff7eb004 len=3D0x4 hose->cfg_addr=3D0x=
ff7eb000)=20
val=3D0xffffffff PCIBIOS_SUCCESSFUL
the entire log (132Kb) is available in [1]=20
and [2]
thanx for your help,
Davide
[1] http://pastebin.com/3mcbDzwY
[2] http:
//paste2.org/p/2274032
Invita i tuoi amici e Tiscali ti premia! Il consiglio di un amico vale pi=
=C3=B9 di uno spot in TV. Per ogni nuovo abbonato 30 =E2=82=AC di premio pe=
r te e per lui! Un amico al mese e parli e navighi sempre gratis: http://fr=
eelosophy.tiscali.it/
^ permalink raw reply [flat|nested] 9+ messages in thread* R: Re: PCI device not working
@ 2012-09-27 11:43 Davide Viti
0 siblings, 0 replies; 9+ messages in thread
From: Davide Viti @ 2012-09-27 11:43 UTC (permalink / raw)
To: galak; +Cc: linuxppc-dev
Hi,
>So its odd that scanning of the second bus didn't report any devices. Do=
=20
you have code that implements ppc_md.pci_exclude_device ?
not that I'm aware=20
of
>You might also want to put some code in the indirect PCI ops (indirect.c)=
=20
to see what actual values you are getting from various indirect_read_config=
()=20
calls.
To make sure that ppc_md.pci_exclude_device is not implemented, I've=20
put some printouts inside indirect_read_config(): I print various paramete=
rs=20
when the function is called, and when it returns and note that:
1.=20
indirect_read_config() is called 422 times:=20
174 times for=20
[/pcie@ffe0a000] (controller where the device is not detected)
248 times=20
for [/pcie@ffe09000]=20
2. ppc_md.pci_exclude_device is always NULL
3. the=20
function always returns with PCIBIOS_SUCCESSFUL
4. the only call to =20
indirect_read_config() inside which bus_no=3D0x3, returns with the followi=
ng=20
log:
pci_bus 0001:03: scanning bus
-> ind_r_config - [/pcie@ffe0a000]=20
devfn=3D0x0 len=3D0x4 hose->indirect_type=3D0x16 hose->first_busno=3D0x2 bu=
s-
>number=3D0x3
-> ind_r_config [/pcie@ffe0a000] - (bus_no=3D0x3 reg=3D0x0=20
cfg_data=3D0xffffffff len=3D0xff7eb004) val=3D0x4 PCIBIOS_SUCCESSFUL =20
the entire=20
log is about 116Kb and is available in [1] or [2] (didn't feel like pasting=
so=20
much data on the ML)
thanx alot,
Davide
[1] http://pastebin.com/JaPGmmfs
[2]=20
http://paste2.org/p/2273728
Invita i tuoi amici e Tiscali ti premia! Il consiglio di un amico vale pi=
=C3=B9 di uno spot in TV. Per ogni nuovo abbonato 30 =E2=82=AC di premio pe=
r te e per lui! Un amico al mese e parli e navighi sempre gratis: http://fr=
eelosophy.tiscali.it/
^ permalink raw reply [flat|nested] 9+ messages in thread
end of thread, other threads:[~2012-10-31 8:53 UTC | newest]
Thread overview: 9+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2012-10-04 12:24 R: Re: PCI device not working Davide Viti
2012-10-04 13:14 ` Kumar Gala
[not found] ` <CAKpAL0m3YnsbbGxL+ejfyE4zfGE5LD9Qxb7oobHVaAZGE1_Jnw@mail.gmail.com>
2012-10-05 8:54 ` Fwd: " Davide Viti
2012-10-05 12:47 ` Kumar Gala
2012-10-25 8:21 ` Davide
2012-10-31 8:52 ` Davide
-- strict thread matches above, loose matches on Subject: below --
2012-09-28 14:48 R: " Davide Viti
2012-09-27 13:14 Davide Viti
2012-09-27 11:43 Davide Viti
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