Hi > I looked into the issue and came to the same conclusions as you. Something > significant has changed from 2.6.15rc2 (what the patch was made for) to > 2.6.15rc5. I added the initialization of the caps and regs fields of the ehci > structure to the probe function in ehci-au1xxx.c. The driver doesn't crash > anymore but does not work either. Where did you put it? I don't know much about USB, but by looking into the ehci-pci.c I added this to the ehci-au1xxx.c, after ioremap of hcd->regs: ehci = hcd_to_ehci(hcd); ehci->caps = hcd->regs; ehci->regs = hcd->regs + HC_LENGTH(readl(&ehci->caps->hc_capbase)); Is this O.K.? Now, with this I get: [4294668.620000] au1xxx-ehci au1xxx-ehci.0: Au1xxx EHCI [4294668.626000] au1xxx-ehci au1xxx-ehci.0: new USB bus registered, assigned bus number 1 [4294668.634000] au1xxx-ehci au1xxx-ehci.0: irq 29, io mem 0x14020200 [4294668.640000] au1xxx-ehci au1xxx-ehci.0: USB 0.0 started, EHCI 1.00, driver 10 Dec 2004 [4294668.649000] hub 1-0:1.0: USB hub found [4294668.653000] hub 1-0:1.0: 0 ports detected [4294668.762000] au1xxx-ohci au1xxx-ohci.0: Au1xxx OHCI [4294668.767000] au1xxx-ohci au1xxx-ohci.0: new USB bus registered, assigned bus number 2 [4294668.775000] au1xxx-ohci au1xxx-ohci.0: irq 29, io mem 0x14020100 [4294678.361000] BUG: soft lockup detected on CPU#0! [4294678.361000] Cpu 0 [4294678.361000] $ 0 : 00000000 1000fc01 807c856c 807c856c [4294678.361000] $ 4 : 807c8570 80721710 00000000 b4020100 [4294678.361000] $ 8 : 80000000 802a4030 00000000 8045a000 [4294678.361000] $12 : 80721108 fffffffb ffffffff 0000000a [4294678.361000] $16 : 807214d0 80721400 80721400 80470000 [4294678.361000] $20 : 00000002 804c0000 24000000 0000001d [4294678.361000] $24 : 00000018 81281d51 [4294678.361000] $28 : 81280000 81281e28 00000000 80355484 [4294678.361000] Hi : 000301ff [4294678.361000] Lo : fc85b000 [4294678.361000] epc : 80139c78 notifier_chain_register+0x18/0x54 Not tainted [4294678.361000] ra : 80355484 ohci_au1xxx_start+0x644/0x678 [4294678.361000] Status: 1000fc03 KERNEL EXL IE [4294678.361000] Cause : 00808000 [4294678.361000] PrId : 04030201 Well, a little further :( > I also tried the Au1xxx OHCI and it hangs while loading the module with rc7. > So it'll probably take some time to port the Au1200 EHCI and OHCI drivers to > 2.6.15rc7 (again!). I think Bora Sahin said he used OHCI successfully on 2.5.15-rc4. Bora, can you confirm this? > Any hints on what has changed are appreciated. I disabled EHCI in .config and tried again. This is what I got: [4294668.621000] au1xxx-ohci au1xxx-ohci.0: Au1xxx OHCI [4294668.626000] au1xxx-ohci au1xxx-ohci.0: new USB bus registered, assigned bus number 1 [4294668.635000] au1xxx-ohci au1xxx-ohci.0: irq 29, io mem 0x14020100 [4294668.725000] hub 1-0:1.0: USB hub found [4294668.729000] hub 1-0:1.0: 2 ports detected When I plug in USB 2.0 Flash key (with the vfat module lodaed): /root # [4294868.810000] usb 1-1: new full speed USB device using au1xxx-ohci and address 2 [4294877.045000] kobject_register failed for usbcore (-17) [4294877.050000] Call Trace: [4294877.053000] [<8029e490>] kobject_register+0x74/0x8c [4294877.058000] [<8029e440>] kobject_register+0x24/0x8c [4294877.063000] [<8014c070>] load_module+0xec4/0x1810 [4294877.068000] [<8014c04c>] load_module+0xea0/0x1810 [4294877.073000] [<80206ed4>] do_setlk+0x1cc/0x40c [4294877.078000] [<801640f8>] vma_prio_tree_insert+0x28/0x5c [4294877.084000] [<8016ae64>] __vma_link+0x34/0x80 [4294877.089000] [<801533d8>] generic_file_mmap+0x68/0x70 [4294877.094000] [<8016af40>] vma_link+0x90/0x160 [4294877.099000] [<8016aef0>] vma_link+0x40/0x160 [4294877.103000] [<8014cab4>] sys_init_module+0xd0/0x890 [4294877.108000] [<8010daac>] stack_done+0x20/0x40 [4294877.113000] [4294878.449000] Initializing USB Mass Storage driver... [4294878.508000] scsi0 : SCSI emulation for USB Mass Storage devices [4294878.606000] usbcore: registered new driver usb-storage [4294878.612000] USB Mass Storage support registered. [4294883.623000] Vendor: Generic Model: STORAGE DEVICE Rev: 1.04 [4294883.630000] Type: Direct-Access ANSI SCSI revision: 00 [4294883.913000] SCSI device sda: 256000 512-byte hdwr sectors (131 MB) [4294883.928000] sda: Write Protect is on [4294883.932000] sda: assuming drive cache: write through [4294883.965000] SCSI device sda: 256000 512-byte hdwr sectors (131 MB) [4294883.980000] sda: Write Protect is on [4294883.984000] sda: assuming drive cache: write through [4294883.989000] sda: sda1 [4294884.005000] sd 0:0:0:0: Attached scsi removable disk sda [4294884.028000] sd 0:0:0:0: Attached scsi generic sg0 type 0 And I can mount /dev/sda1. I'll try with only EHCI now, then I'll look into this kobject_register. BR, Matej
