PCI2 issue on MPC8541
Shriram Janardhan
shriramjanardhan at yahoo.com
Thu Feb 8 06:22:32 EST 2007
Hello everybody,
I'm having an issue w.r.t PCI2 on MPC8541 and would appreciate if anybody could share their thoughts on what could be wrong.
We're running the 2.6.11 version of the linux kernel on MPC8541 and having trouble getting the cardmgr to initialize a compact flash connected to PCI2 through a TI1510 bridge.
We have two CFs connected through two TI1510 bridges to the two PCI controllers. When cardmgr is invoked to intialize the two sockets, the PCI1/ide0 initialization goes on fine but the PCI2/ide-cs initialization fails.
The bridges are on slot 11 of the respective controllers and the interrupts from the two bridges are multiplexed onto the same external interrupt pin(EXT2) of the 8541.
For the second CF, we are able to read the CIS and correctly identify the CF, but the cardmgr fails while trying to execute the IOCTL DS_GET_DEVICE_INFO.
------------------------------------------------------------
(none)#
(none)# lspci -vv
00:00.0 Class 0b20: 1057:000c (rev 11)
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Step
ping- SERR+ FastB2B-
Status: Cap- 66Mhz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort+ >SERR- <PERR-
Latency: 128
Interrupt: pin A routed to IRQ 0
Region 0: Memory at 9ff00000 (32-bit, non-prefetchable) [size=1M]
Region 1: Memory at <unassigned> (32-bit, prefetchable) [size=80000000]
Region 2: Memory at <unassigned> (64-bit, non-prefetchable)
Region 4: Memory at <unassigned> (64-bit, non-prefetchable)
00:0b.0 Class 0607: 104c:ac56
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Step
ping- SERR- FastB2B-
Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort
- <MAbort- >SERR- <PERR-
Latency: 168, cache line size 08
Interrupt: pin A routed to IRQ 98
Region 0: Memory at 80000000 (32-bit, non-prefetchable) [size=4K]
Bus: primary=00, secondary=01, subordinate=04, sec-latency=176
Memory window 0: 80400000-807ff000 (prefetchable)
Memory window 1: 80800000-80bff000
I/O window 0: 00001000-000010ff
I/O window 1: 00001400-000014ff
BridgeCtl: Parity- SERR- ISA- VGA- MAbort- >Reset+ 16bInt+ PostWrite+
16-bit legacy interface ports at 0001
02:00.0 Class 0b20: 1057:000c (rev 11)
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Step
ping- SERR+ FastB2B-
Status: Cap- 66Mhz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort+ >SERR- <PERR-
Latency: 128
Interrupt: pin A routed to IRQ 0
Region 0: Memory at bff00000 (32-bit, non-prefetchable) [size=1M]
Region 1: Memory at <unassigned> (32-bit, prefetchable) [size=80000000]
Region 2: Memory at <unassigned> (64-bit, non-prefetchable)
Region 4: Memory at <unassigned> (64-bit, non-prefetchable)
02:0b.0 Class 0607: 104c:ac56
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Step
ping- SERR- FastB2B-
Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort
- <MAbort- >SERR- <PERR-
Latency: 168, cache line size 08
Interrupt: pin A routed to IRQ 98
Region 0: Memory at a0000000 (32-bit, non-prefetchable) [size=4K]
Bus: primary=02, secondary=03, subordinate=06, sec-latency=176
Memory window 0: a0400000-a07ff000 (prefetchable)
Memory window 1: a0800000-a0bff000
I/O window 0: 00000000-000000ff
I/O window 1: 00000400-000004ff
BridgeCtl: Parity- SERR- ISA- VGA- MAbort- >Reset+ 16bInt+ PostWrite+
16-bit legacy interface ports at 0001
(none)#
--------------------------------------------------------------------
(none)# cardmgr -v -o
cardmgr[865]: watching 2 sockets
cardmgr[865]: starting, version is 3.2.8
cardmgr[865]: initializing socket 0
cardmgr[86Probing IDE interface ide0...
5]: socket 0: ATA/IDE Fixed Disk
cardmgr[865]: product info: "Wintec Industries", "CF 256MB"
cardmgr[865]: function: 4 (fixed disk)
hda: CF 256MB, CFA DISK drive
ide0 at 0x000-0x007,0x00e on irq 98
hda: max request size: 128KiB
hda: 513536 sectors (262 MB) w/0KiB Cache, CHS=1003/16/32
hda: cache flushes not supported
hda: hda1
ide-cs: hda: Vcc = 3.3, Vpp = 0.0
cardmgr[865]: executing: './ide start hda'
cardmgr[865]: + mknod /dev/hda b 3 0
cardmgr[865]: + mknod /dev/hda1 b 3 1
cardmgr[865]: + mknocs: memory probe 0x80000000-0x9fffffff:d /dev/hda2 b 3 excl
uding2
cardmgr[865] 0x80000000-0x9fffffff: + mknod /dev/h
da3 b 3 3
cardcs: memory probe 0xa0000000-0xbfffffff:mgr[865]: + mkno excludingd /dev/hda4
b 3 0xa0000000-0xa1ffffff4
cardmgr[865] 0xbe000000-0xbfffffff: + mknod /dev/h
da5 b 3 5
card1.0: mgr[865]: + mknoGetNextTuple: No more items
d /dev/hda6 b 3 6
cardmgr[865]: + mknod /dev/hda7 b 3 7
cardmgr[865]: + mknod /dev/hda8 b 3 8
cardmgr[865]: + mknod /dev/hda9 b 3 9
cardmgr[865]: + mknod /dev/hda10 b 3 10
cardmgr[865]: + mknod /dev/hda11 b 3 11
cardmgr[865]: + mknod /dev/hda12 b 3 12
cardmgr[865]: + mknod /dev/hda13 b 3 13
cardmgr[865]: + mknod /dev/hda14 b 3 14
cardmgr[865]: + mknod /dev/hda15 b 3 15
cardmgr[865]: + mknod /dev/hda16 b 3 16
cardmgr[865]: initializing socket 1
cardmgr[865]: socket 1: ATA/IDE Fixed Disk
cardmgr[865]: product info: "SILICONSYSTEMS", "VER2.00"
cardmgr[865]: function: 4 (fixed disk)
cardmgr[865]: get dev info on socket 1 failed: No such device
cardmgr[865]: exiting
(none)#
---------------------------------------------------------------------------------------
(none)# cat /proc/ioports
00000000-00ffffff : PCI1 host bridge
00000000-0000000f : pcmcia_socket0
00000000-00000007 : ide0
0000000e-0000000e : ide0
00001000-000010ff : PCI CardBus #01
00001400-000014ff : PCI CardBus #01
01000000-01ffffff : PCI2 host bridge
01000000-010000ff : PCI CardBus #03
01000400-010004ff : PCI CardBus #03
------------------------------------------------------------------------------------------
(none)# cat /etc/pcmcia/config.opts
# Local PCMCIA Configuration File
#
# System resources available for PCMCIA cards
#
include port 0x1000-0x1fff
include port 0x0000-0x0fff
include memory 0x80000000-0x9fffffff
include memory 0xa0000000-0xbfffffff
(none)#
---------------------------------------------------------------------------------------
We use the following definitions - same as that of MPC8555CDS.
/* PCI 1 memory map */
#define MPC85XX_PCI1_LOWER_IO 0x00000000
#define MPC85XX_PCI1_UPPER_IO 0x00ffffff
#define MPC85XX_PCI1_LOWER_MEM 0x80000000
#define MPC85XX_PCI1_UPPER_MEM 0x9fffffff
#define MPC85XX_PCI1_IO_BASE 0xe2000000
#define MPC85XX_PCI1_MEM_OFFSET 0x00000000
#define MPC85XX_PCI1_IO_SIZE 0x01000000
/* PCI 2 memory map */
/* Note: the standard PPC fixups will cause IO space to get bumped by
* hose->io_base_virt - isa_io_base => MPC85XX_PCI1_IO_SIZE */
#define MPC85XX_PCI2_LOWER_IO 0x00000000
#define MPC85XX_PCI2_UPPER_IO 0x00ffffff
#define MPC85XX_PCI2_LOWER_MEM 0xa0000000
#define MPC85XX_PCI2_UPPER_MEM 0xbfffffff
#define MPC85XX_PCI2_IO_BASE 0xe3000000
#define MPC85XX_PCI2_MEM_OFFSET 0x00000000
#define MPC85XX_PCI2_IO_SIZE 0x01000000
------------------------------------------------------------------------
I am wondering if it is a PCMCIA addressing issue. I am not sure how to setup pcmcia/config.opts.
Any thoughts??
Thanks,
Shriram.
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