Hello,
I have applied the pcipool-0323 and ohci-0323 + 0324 patches to my Linux
kernel 2.4.1(using usb-ohci from 2.4.3 that integrates the HCCA patch)to
support non-cache coherent PCI reads/writes.
I solved a problem with the pci_alloc_consistent function for my
architecture. Now the pci_alloc_consistent function allocates uncachable
memory (from a region starting from b7000000 address as you can see from
the following debug messages pci_alloc_consistent: ).
When I run I get a timeout:
usb.c: registered new driver
usbdevfs
usb.c: registered new driver
hub
usb-ohci.c: USB OHCI at membase 0xb0010000, IRQ
2
usb-ohci.c: usb-00:03.0, OPTi Inc.
82C861
pci_alloc_consistent:
ret=b7000000
pci_alloc_consistent:
dma_handle=17000000
uhsb.c: new USB bs registered, assigned bus number
1
pnci_alloc_consisent: ret=b7003000
pci_alloc_consistent:
dma_handle=17003000
Psroduct: USB OHC Root
Hub
SerialNumber:
b0010000
hub.c: USB hub
found
hub.c: 2 ports
detected
mice: PS/2 mouse device common for all mice
NET4: Linux TCP/IP 1.0 for
NET4.0
IP Protocols: ICMP, UDP,
TCP
IP: routing cache hash table of 512 buckets,
4Kbytes
TCP: Hash tables configured (established 4096 bind
4096)
NET4: Unix domain sockets 1.0/SMP for Linux
NET4.0.
VFS: Mounted root (ext2
filesystem).
Frceeing unused krnel memory: 208k
freed
hub.c: USB new device connect on bus1/1, assigned device number
2
pci_alloc_consistent:
ret=b7007000
pci_alloc_consistent:
dma_handle=17007000
INIT: version 2.77
booting
usb_control/bulk_msg:
timeout
sb-ohci.c: unli URB
timeout
usb.c: USB device not accepting new address=2
(error=-110)
husb.c: USB new device connect on bus1/1, assigned device number
3
pci_alloc_consistent:
ret=b7007000
pci_alloc_consistent:
dma_handle=17007000
INIT: Entering runlevel:
3
sh-2.03# usb_control/bulk_msg:
timeout
usb-ohci.c: unlink URB
timeout
usb.c: USB device not accepting new address=3
(error=-110)
sh-2.03#
Could you give me any helps about this problem please?
Best regards
Orazio.
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