On 08/08/10 04:21, Chen Wenjie wrote:

Hi, Igor,
Thank you very much for your warm and professional help!
I will try to upgrade the codes for ohci-pxa27x first.

quoted

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)

I'd rather remove the unused drivers from the configuration,
then have them built-in and do something with the missing hardware...

Actually, my board use a ISP1105 as the PHY interface???the schematic is :
http://picasaweb.google.com/114830881710721561783/Public#5502732460750351090

As far as I know DNP, stands for "Do Not Populate".
It states: "ISP1105BS(DNP)" - is it assembled at all?

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)

Indeed, those are the defines, but you need to do the actual configuration
for them, by calling pxa3xx_mfp_config() with appropriate parameters.

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:

quoted

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...

quoted

Zylonite have implemented a USB host through USBH_N(USBH1_N)

USBH_P(USBH1_P).

quoted

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

quoted

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.

quoted

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?

quoted

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

quoted

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.

quoted

High appreciation for your kind help!




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-- 
Regards,
Igor.

-- 
Regards,
Igor.