RE: OMAP 3430 and ISP1504A USB support

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> -----Original Message-----
> From: linux-omap-owner@xxxxxxxxxxxxxxx 
> [mailto:linux-omap-owner@xxxxxxxxxxxxxxx] On Behalf Of Le Van 
> Mao, Robert
> Sent: Friday, February 29, 2008 10:09 PM
> To: Felipe Balbi
> Cc: linux-omap@xxxxxxxxxxxxxxx
> Subject: RE: OMAP 3430 and ISP1504A USB support
> 
> Hi,
> 
> Thanks for the reply. I did exactly what you said but dmesg 
> didn't return any message at all.
> 
> I did a cat on /proc/driver/musb_hdrc and I got this:
> 
> root@OMAP3EVM driver]#cat /proc/driver/musb_hdrc 
> Status: MHDRC, Mode=Peripheral (Power=60, DevCtl=80)
> OTG state: b_idle; inactive
> Options: musb-dma, otg (peripheral+host), debug=3 [eps=16]
> Peripheral address: 30
> Root port status: 00000000
> Gadget driver: (none)
> 
> ep0 (hw0): 1buf, csr 0000 maxp 0000
>         (queue empty)
> 


As far as I can tell, you have not compiled OTG mode but you do not have
a gadget driver loaded or built-in.

Select one of the gadget driver options in menuconfig under
"Device Drivers -> USB support -> USB Gadget Support".
The simplest one would be Gadget Zero.

One more thing to look out for would be "Rely on OTG Targeted Peripherals
List" - CONFIG_USB_OTG_WHITELIST. You might want to disable it.

Also, if you don't want to use the OTG mode at all, then you can simply
configure the controller in host mode (CONFIG_USB_MUSB_HOST). The only thing
wrong with your current configuration is that it is set to OTG mode without
a gadget driver.

Hope this helps.

Regards,
Anand


> The interrupts 92 and 93 for musb_hdrc.0 were in /proc/interrupts.
> 
> So, I am wondering what was missing?
> 
> Regards,
> 
> Robert
> 
> -----Original Message-----
> From: Felipe Balbi [mailto:me@xxxxxxxxxxxxxxx]
> Sent: February 29, 2008 10:37 AM
> To: Le Van Mao, Robert
> Cc: linux-omap@xxxxxxxxxxxxxxx
> Subject: Re: OMAP 3430 and ISP1504A USB support
> 
> 
> 
> 
> On Fri, 29 Feb 2008 09:48:21 -0500, "Le Van Mao, Robert"
> <RLeVanMao@xxxxxxxxxxxxxx> wrote:
> > Hi all,
> > 
> > I have an EVM board with an OMAP 3430 connected to a 
> ISP1504A OTG chips
> > which has a mini-AB plug-in. I tried to put the 1504A into 
> host mode and
> > would like to see the powering (and detection) of a 
> connected USB device.
> > We check the ID line which seems to be grounded.
> > 
> > The kernel is Linux version 2.6.22.1-omap1 ES2. I enabled the
> > CONFIG_USB_MUSB_OTG  option and I saw the usb0 created. However the
> > transceiver was not in host mode. How could I put it into host mode?
> > 
> > According to the specs of the ISP1504A, I have enable the ID_PULLUP
> > regiser bit to logic 1. I am wondering where should I check 
> to see that
> the
> > registers are set properly with the MUSB drivers.
> > 
> > Your help is appreciated and thanks in advance,
> 
> compile your kernel with musb debug verbosity set to 3.
> and follow these steps:
> 
> 1. boot your board
> 2. dmesg -c  (it will clear log buffer)
> 3. attach mini-a connector with device attached
> 4. dmesg
> 
> send us the last dmesg output
> 
> Thanks
> 
> > 
> > 
> > Starting kernel ...
> > ...
> > usbcore: registered new interface driver usbfs
> > usbcore: registered new interface driver hub
> > usbcore: registered new device driver usb
> > musb_hdrc: version 2.2a/db-0.5.2/dbg, musb-dma, otg 
> (peripheral+host),
> > debug=1
> > musb_platform_resume 175:
> > 3430-resume()<7>HS USB OTG: revision 0x33, sysconfig 
> 0x2015, sysstatus
> > 0x1, intrfsel 0x1, simenable  0x0
> > -----------> is_host_enabled
> > -----------> is_peripheral_enabled
> > musb_hdrc: USB OTG mode controller at c8800000 using DMA, IRQ 92
> > musb_init_controller 2148: OTG mode, status 0, dev80
> > ...
> > usbmon: debugfs is not available
> > usbcore: registered new interface driver cdc_acm
> > drivers/usb/class/cdc-acm.c: v0.25:USB Abstract Control 
> Model driver for
> > USB modems and ISDN adapters
> > Initializing USB Mass Storage driver...
> > usbcore: registered new interface driver usb-storage
> > USB Mass Storage support registered.
> > usbcore: registered new interface driver usbtest
> > ether gadget: using random self ethernet address
> > ether gadget: using random host ethernet address
> > usb0: Ethernet Gadget, version: May Day 2005
> > usb0: using musb_hdrc, OUT ep1out IN ep1in STATUS ep2in
> > usb0: MAC 86:e0:22:2e:a5:dd
> > usb0: HOST MAC 1a:0a:8d:0b:76:d3
> > usb0: RNDIS ready
> > usb_gadget_register_driver 1822: OTG startup...
> > musb_hdrc musb_hdrc.0: MUSB HDRC host driver
> > musb_hdrc musb_hdrc.0: new USB bus registered, assigned bus number 1
> > usb usb1: Product: MUSB HDRC host driver
> > usb usb1: Manufacturer: Linux 2.6.22.1-omap1 musb-hcd
> > usb usb1: SerialNumber: musb_hdrc.0
> > usb usb1: configuration #1 chosen from 1 choice
> > hub 1-0:1.0: USB hub found
> > hub 1-0:1.0: 1 port detected
> > musb_context_store_and_suspend 253:
> > MUSB-Context-SAVE (Off mode support)
> > musb_platform_suspend 149:
> > ...
> > 
> > 
> > Robert Le Van Mao
> > (450) 542-5984
> > fax : (450) 358-7707
> > RLeVanMao@xxxxxxxxxxxxxx
> > www.rheinmetall.ca
> > 
> > 
> > 
> > --
> > To unsubscribe from this list: send the line "unsubscribe 
> linux-omap" in
> > the body of a message to majordomo@xxxxxxxxxxxxxxx
> > More majordomo info at  http://vger.kernel.org/majordomo-info.html
> -- 
> Best Regards,
> 
> Felipe Balbi
> http://felipebalbi.com
> me@xxxxxxxxxxxxxxx
> 
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