Hello, I am trying to get USB working on Jornada 820, which uses SA1101. There is already a driver in the kernel for OHCI on SA1111, which is similar to 1101, so I do this by changing the 1111 driver.
This method works on kernel 2.4 (2.4.19-hh36 from handhelds.org), but on kernel 2.6 (2.6.7-hh1), it is only almost working. Device insertion/removal is recognized, but the devices do not accept new address. I checked that IRQs are OK (there are 12 or 13 every time a device is inserted) and DMA is OK (the frame number is running in the HCCA). I tried this with a few devices, and the kernel always recognizes the correct speed (1.5Mb/s or 12Mb/s), so there is some kind of communication between HCI and device. I would be glad to receive any advice regarding how to debug this problem. The session goes something like this: usbcore: registered new driver usbfs usbcore: registered new driver hub drivers/usb/host/ohci-sa1101.c: ohci_hcd (SA-1101) at 0x00000000, irq 101 sa1101-ohci 180000: new USB bus registered, assigned bus number 1 sa1101-ohci 180000: reset, control = 0xbf usb usb1: new device strings: Mfr=3, Product=2, SerialNumber=1 usb usb1: default language 0x0409 usb usb1: Product: SA-1101 OHCI usb usb1: Manufacturer: Linux 2.6.7-hh0 ohci_hcd usb usb1: SerialNumber: sa1101 usb usb1: adding 1-0:1.0 (config #1, interface 0) hub 1-0:1.0: usb_probe_interface hub 1-0:1.0: usb_probe_interface - got id hub 1-0:1.0: USB hub found hub 1-0:1.0: 1 port detected hub 1-0:1.0: standalone hub hub 1-0:1.0: no power switching (usb 1.0) hub 1-0:1.0: no over-current protection hub 1-0:1.0: power on to power good time: 4ms hub 1-0:1.0: local power source is good sa1101-ohci 180000: created debug files sa1101-ohci 180000: OHCI controller state sa1101-ohci 180000: OHCI 1.0, with legacy support registers sa1101-ohci 180000: control 0x083 HCFS=operational CBSR=3 sa1101-ohci 180000: cmdstatus 0x00000 SOC=0 sa1101-ohci 180000: intrstatus 0x00000044 RHSC SF sa1101-ohci 180000: intrenable 0x8000001a MIE UE RD WDH sa1101-ohci 180000: hcca frame #0066 sa1101-ohci 180000: roothub.a 02001201 POTPGT=2 NOCP NPS NDP=1 sa1101-ohci 180000: roothub.b 00000000 PPCM=0000 DR=0000 sa1101-ohci 180000: roothub.status 00008000 DRWE sa1101-ohci 180000: roothub.portstatus [0] 0x00000100 PPS sa1101-ohci 180000: autosuspend <inserting device> sa1101-ohci 180000: GetStatus roothub.portstatus [1] = 0x00010301 CSC LSDA PPS CCS hub 1-0:1.0: port 1, status 0301, change 0001, 1.5 Mb/s sa1101-ohci 180000: GetStatus roothub.portstatus [1] = 0x00000301 LSDA PPS CCS sa1101-ohci 180000: GetStatus roothub.portstatus [1] = 0x00000301 LSDA PPS CCS sa1101-ohci 180000: GetStatus roothub.portstatus [1] = 0x00000301 LSDA PPS CCS sa1101-ohci 180000: GetStatus roothub.portstatus [1] = 0x00000301 LSDA PPS CCS sa1101-ohci 180000: GetStatus roothub.portstatus [1] = 0x00000301 LSDA PPS CCS hub 1-0:1.0: debounce: port 1: delay 100ms stable 4 status 0x301 sa1101-ohci 180000: GetStatus roothub.portstatus [1] = 0x00100303 PRSC LSDA PPS PES CCS usb 1-1: new low speed USB device using address 2 sa1101-ohci 180000: urb c04cf658 td ffc4e040 (2) cc 4, len=0/0 sa1101-ohci 180000: urb c04cf658 td ffc4e000 (2) cc 4, len=0/0 usb 1-1: device not accepting address 2, error -32 sa1101-ohci 180000: GetStatus roothub.portstatus [1] = 0x00100303 PRSC LSDA PPS PES CCS usb 1-1: new low speed USB device using address 3 sa1101-ohci 180000: urb c04cf658 td ffc4e080 (2) cc 4, len=0/0 sa1101-ohci 180000: urb c04cf658 td ffc4e000 (2) cc 4, len=0/0 usb 1-1: device not accepting address 3, error -32 sa1101-ohci 180000: GetStatus roothub.portstatus [1] = 0x00000301 LSDA PPS CCS -- Matan Ziv-Av. [EMAIL PROTECTED] ------------------------------------------------------- This SF.Net email is sponsored by BEA Weblogic Workshop FREE Java Enterprise J2EE developer tools! Get your free copy of BEA WebLogic Workshop 8.1 today. http://ads.osdn.com/?ad_id=4721&alloc_id=10040&op=click _______________________________________________ [EMAIL PROTECTED] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
