From mboxrd@z Thu Jan 1 00:00:00 1970 From: ccc.cwj@gmail.com (=?utf-8?B?6ZmI6Ze75p2w?=) Date: Sat, 07 Aug 2010 18:24:24 -0000 Subject: =?utf-8?B?UmU6IFJlOiB1c2IgaG9zdCBwb3J0MyBvbiBweGEzMTA/?= References: Message-ID: <201008080224060156867@gmail.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Hi, Igor, Thank you very much for your warm and professional help! I will try to upgrade the codes for ohci-pxa27x first. > Do you really have sl811 and r8a66597 usb host controllers on your board? I think no real IC installed on my board, I just configure it on menuconfig by choose something seems related to USB (--blindly) Actually, my board use a ISP1105 as the PHY interface?the schematic is : http://picasaweb.google.com/114830881710721561783/Public#5502732460750351090 Do you think there is anything wrong? GPIO setting is : //file: mfp-pxa300.h /* USB P3 */ #define GPIO77_USB_P3_1 MFP_CFG(GPIO77, AF2) #define GPIO78_USB_P3_2 MFP_CFG(GPIO78, AF2) #define GPIO79_USB_P3_3 MFP_CFG(GPIO79, AF2) #define GPIO80_USB_P3_4 MFP_CFG(GPIO80, AF2) #define GPIO81_USB_P3_5 MFP_CFG(GPIO81, AF2) #define GPIO82_USB_P3_6 MFP_CFG(GPIO82, AF2) #define GPIO126_USB_SPEED MFP_CFG_LPM(GPIO126, AF5, PULL_HIGH) I will upgrade the driver and test it again. Thank you very very much! 2010-08-08 Chen Wenjie ???? Igor Grinberg ????? 2010-08-07 21:42:57 ???? Chen Wenjie ??? linux-arm-kernel ??? Re: usb host port3 on pxa310? On 08/06/10 21:43, Chen Wenjie wrote: > I want to use PXA310 to realize a USB HOST. > > (My kernel version: 2.6.27) > There was a relatively big change in ohci-pxa27x driver, I think around 2.6.28-rc1. May be you should consider upgrading... > Zylonite have implemented a USB host through USBH_N(USBH1_N) USBH_P(USBH1_P). > Unfortunatly, In PXA310, the pins of USBH1_N and USBH1_P does not exist. > > So I have to use "usb host port3 " described in the manual "Vol. IV: Monahans > L Processor and > Monahans LV Processor Developers Manual" > > > > GPIO > Alternate > Function > Port UP3OCR[CFG] > 0x0 0x2 > USB_P3_1 UHC Rx Data (RCV - in) ? UHC Rx Data (RCV - > out) ? > USB_P3_2 UHC OE (OE_n - out) ? UHC OE (OE_n - in) > ? > USB_P3_3 UHC Rx D? (VM - in) ? UHC Rx D- (VM - > out) ? > USB_P3_4 UHC Tx D? (VMO - out) ? UHC Tx D- (VMO - > in) ? > USB_P3_5 UHC Rx D+ (VP - in) ? UHC Rx D+ (VP - > out) ? > USB_P3_6 UHC Tx D+ (VPO - out) ? UHC Tx D+ (VPO - > in) ? > > In the schematic, I have connected GPIO77~82 to USB_P3_1 ~ USB_P3_6. > You need also to configure those gpios to alternate function 2 in the MFPRs. If you use a transceiver mode, then may be you need USBHPEN signal connected to your PHY and configured accordingly in MFPR. Also, in pxa310 there is a U2DP3CR register, which controls output and serial mode selection of the usb port3. > > > However, The USB port 3 does not work. > Here is the log: > > ====================================== > 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 > usb usb1: New USB device found, idVendor=1d6b, idProduct=0001 > usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1 > usb usb1: Product: PXA27x OHCI > usb usb1: Manufacturer: Linux 2.6.27-dirty ohci_hcd > usb usb1: SerialNumber: pxa27x > sl811: driver sl811-hcd, 19 May 2005 > r8a66597_hcd: driver r8a66597_hcd, 10 Apr 2008 > Do you really have sl811 and r8a66597 usb host controllers on your board? > usb 1-3: new full speed USB device using pxa27x-ohci and address 2 > usb 1-3: device descriptor read/64, error -62 > usb 1-3: device descriptor read/64, error -62 > usb 1-3: new full speed USB device using pxa27x-ohci and address 3 > usb 1-3: device descriptor read/64, error -62 > usb 1-3: device descriptor read/64, error -62 > usb 1-3: new full speed USB device using pxa27x-ohci and address 4 > usb 1-3: device not accepting address 4, error -62 > usb 1-3: new full speed USB device using pxa27x-ohci and address 5 > usb 1-3: device not accepting address 5, error -62 > hub 1-0:1.0: unable to enumerate USB device on port 3 > ====================================== > > > Then I found a bit in UP2OCR -- (VPMBlockEnbN). > It is quite strange (if not ugly:( ) the this bit is to control port 3 > (In UP2OCR--a register for port 2, while there is too many unused bits in > UP3OCR) > > But I am not very sure how to use this bit. > I grep the source tree, but found nothing about VPMBlockEnbN. > > > Can anyone tell me that how to write a driver for USB-host-port-3? > As far as I know pxa310 usb port3 does not need any special driver to work in host mode, ohci-pxa27x is enough. Currently, the setup of registers, which are not related to UHC (UP2OCR, UP3OCR, etc.), is done in the board code, in the ohci callback. > High appreciation for your kind help! > > > > > _______________________________________________ > linux-arm-kernel mailing list > linux-arm-kernel at lists.infradead.org > http://lists.infradead.org/mailman/listinfo/linux-arm-kernel > -- Regards, Igor. -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: image/gif Size: 1237 bytes Desc: not available URL: