Hello all, I have some troubles getting the USB host to work on an AU1100 soc. The board is much like the PB1100 / Syrah board. Perhaps there is someone on this list that can shine a light on it. I have been using kernel 2.6.21-rc4 and I recently upgraded to kernel 2.6.24. Both kernels have exactly the same problems with USB. My system is running in big endian mode. In the kernel configuration the following 'USB host controller drivers' options are set: CONFIG_USB_OHCI_HCD=y CONFIG_USB_OHCI_LITTLE_ENDIAN=y Furthermore I switched on support for USB HID and USB storage. When I attach a keyboard to the USB port I see some messages appearing saying a low speed device is detected when I run dmesg (see below for dmesg output) but the keyboard doesn't work. The cpu is also getting floaded by interrupts from the OHCI controller. I've added some debugging messages to the HCD IRQ handler and it appears the SF interrupt (Start frame) is not satisfied. I think this is an issue which has to do with big endian which. I'm quite sure I have the clock routing right (stuff like UART, LCD controller, etc are working correctly). Swapping the signal wires on the USB interface doesn't help either. This is the output from dmesg (with USB debugging enabled): ohci_hcd: 2006 August 04 USB 1.1 'Open' Host Controller (OHCI) Driver ohci_hcd: block sizes: ed 64 td 64 In ohci_hcd_au1xxx_drv_probe<7>drivers/usb/host/ohci-au1xxx.c: starting Au1xxx O HCI USB Controller drivers/usb/host/ohci-au1xxx.c: Clock to USB host has been enabled au1xxx-ohci au1xxx-ohci.0: Au1xxx OHCI drivers/usb/core/inode.c: creating file 'devices' drivers/usb/core/inode.c: creating file '001' au1xxx-ohci au1xxx-ohci.0: new USB bus registered, assigned bus number 1 au1xxx-ohci au1xxx-ohci.0: irq 34, io mem 0x10100000 au1xxx-ohci au1xxx-ohci.0: ohci_au1xxx_start, ohci:83e03cc0<7>au1xxx-ohci au1xxx -ohci.0: created debug files au1xxx-ohci au1xxx-ohci.0: OHCI controller state au1xxx-ohci au1xxx-ohci.0: OHCI 1.0, NO legacy support registers au1xxx-ohci au1xxx-ohci.0: control 0x083 HCFS=operational CBSR=3 au1xxx-ohci au1xxx-ohci.0: cmdstatus 0x00000 SOC=0 au1xxx-ohci au1xxx-ohci.0: intrstatus 0x00000004 SF au1xxx-ohci au1xxx-ohci.0: intrenable 0x8000005a MIE RHSC UE RD WDH au1xxx-ohci au1xxx-ohci.0: hcca frame #0000 au1xxx-ohci au1xxx-ohci.0: roothub.a 02001202 POTPGT=2 NOCP NPS NDP=2(2) au1xxx-ohci au1xxx-ohci.0: roothub.b 00000000 PPCM=0000 DR=0000 au1xxx-ohci au1xxx-ohci.0: roothub.status 00008000 DRWE au1xxx-ohci au1xxx-ohci.0: roothub.portstatus [0] 0x00000100 PPS au1xxx-ohci au1xxx-ohci.0: roothub.portstatus [1] 0x00000100 PPS usb usb1: default language 0x0409 usb usb1: uevent usb usb1: usb_probe_device usb usb1: configuration #1 chosen from 1 choice usb usb1: adding 1-0:1.0 (config #1, interface 0) usb 1-0:1.0: uevent 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: 2 ports 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 hub 1-0:1.0: trying to enable port power on non-switchable hub hub 1-0:1.0: state 7 ports 2 chg 0000 evt 0000 drivers/usb/core/inode.c: creating file '001' usb usb1: new device strings: Mfr=3, Product=2, SerialNumber=1 usb usb1: Product: Au1xxx OHCI usb usb1: Manufacturer: Linux 2.6.24 ohci_hcd usb usb1: SerialNumber: au1xxx Initializing USB Mass Storage driver... usbcore: registered new interface driver usb-storage USB Mass Storage support registered. usbcore: registered new interface driver libusual usbcore: registered new interface driver usbserial drivers/usb/serial/usb-serial.c: USB Serial Driver core mice: PS/2 mouse device common for all mice usbcore: registered new interface driver usbhid drivers/hid/usbhid/hid-core.c: v2.6:USB HID core driver Advanced Linux Sound Architecture Driver Version 1.0.15 (Tue Nov 20 19:16:42 200 7 UTC). ALSA AC97: Driver Initialized ALSA device list: #0: AMD Au1000--AC97 ALSA Driver TCP cubic registered NET: Registered protocol family 1 VFS: Mounted root (jffs2 filesystem). Freeing unused kernel memory: 116k freed Algorithmics/MIPS FPU Emulator v1.5 eth0: link up (100/Full) wm97xx: version 0.64 liam.girdwood@xxxxxxxxxxxxxxxx wm97xx: detected a wm9712 codec input: wm97xx touchscreen as /devices/virtual/input/input0 hub 1-0:1.0: state 7 ports 2 chg 0000 evt 0004 au1xxx-ohci au1xxx-ohci.0: GetStatus roothub.portstatus [1] = 0x00010301 CSC LSD A PPS CCS hub 1-0:1.0: port 2, status 0301, change 0001, 1.5 Mb/s hub 1-0:1.0: debounce: port 2: total 100ms stable 100ms status 0x301 au1xxx-ohci au1xxx-ohci.0: GetStatus roothub.portstatus [1] = 0x00100303 PRSC LS DA PPS PES CCS usb 1-2: new low speed USB device using au1xxx-ohci and address 2 Nico Coesel
