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Re: pxa270 OHCI usb host problem | |
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Ben Dooks wrote: > On Fri, Mar 20, 2009 at 03:07:58PM +0100, Zachár Balázs wrote: >> Hi again, >> >> I have a pxa270 based custom board (I don't know to much about the board) >> >> Originally my board operates as an USB device, but I would like to try it to use as an USB host (I see some success try with other boards on the net)... >> I know, the pxa270 have an OHCI controller... >> >> So I cut down the male connector from my board and solder a female to the right position and rewrite a new board driver (use mainstone.c as base) and boot up... (It looks everything work fine now (mmc >> reader, network device, nor flash) except the USB host function) > > You did get the electrical connections right? USB host needs a different > set of resistors and should also have some ESD protection. I don't know :( It is like a black box about this side... But I measure and I got 4,62V between the right pins. > >> I got these error message at boot (debug usb on, in the kernel): >> >> ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver >> pxa27x-ohci pxa27x-ohci: PXA27x OHCI >> pxa27x-ohci pxa27x-ohci: new USB bus registered, assigned bus number 1 >> pxa27x-ohci pxa27x-ohci: irq 3, io mem 0x4c000000 >> usb usb1: configuration #1 chosen from 1 choice >> hub 1-0:1.0: USB hub found >> hub 1-0:1.0: 3 ports detected >> Initializing USB Mass Storage driver... >> usbcore: registered new interface driver usb-storage >> USB Mass Storage support registered. >> usbcore: registered new interface driver libusual >> TCP cubic registered >> RPC: Registered udp transport module. >> RPC: Registered tcp transport module. >> XScale iWMMXt coprocessor detected. >> usb 1-1: new low speed USB device using pxa27x-ohci and address 2 >> usb 1-1: device descriptor read/64, error -62 >> eth0: link up, 100Mbps, full-duplex, lpa 0x45E1 >> eth1: link down >> usb 1-1: device descriptor read/64, error -62 >> usb 1-1: new low speed USB device using pxa27x-ohci and address 3 >> usb 1-1: device descriptor read/64, error -62 >> usb 1-1: device descriptor read/64, error -62 >> usb 1-1: new low speed USB device using pxa27x-ohci and address 4 >> usb 1-1: device not accepting address 4, error -62 >> usb 1-1: new low speed USB device using pxa27x-ohci and address 5 >> usb 1-1: device not accepting address 5, error -62 >> hub 1-0:1.0: unable to enumerate USB device on port 1 >> >> >> >> If I plug in a pen drive to the USB connector I don't see anything (not either in dmesg or in syslog), it look like it didn't detect the plug in... >> Where should I search? >> >> regards, >> Balázs Zachár >> >> >> >> ------------------------------------------------------------------- >> List admin: http://lists.arm.linux.org.uk/mailman/listinfo/linux-arm >> FAQ: http://www.arm.linux.org.uk/mailinglists/faq.php >> Etiquette: http://www.arm.linux.org.uk/mailinglists/etiquette.php > ------------------------------------------------------------------- List admin: http://lists.arm.linux.org.uk/mailman/listinfo/linux-arm FAQ: http://www.arm.linux.org.uk/mailinglists/faq.php Etiquette: http://www.arm.linux.org.uk/mailinglists/etiquette.php
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