From mboxrd@z Thu Jan  1 00:00:00 1970
From: Manukumar <manukumar@signal-networks.com>
Date: Mon, 09 Jul 2012 14:17:49 +0530
Subject: [U-Boot] USB detection
In-Reply-To: <20120705134543.134da313@aari01-12>
References: <1337677828.2382.30.camel@Manukumar>
	<201205221615.07965.marex@denx.de> <4FBBD34F.5010501@freescale.com>
	<1337752596.2378.37.camel@Manukumar>
	<20120523080211.B633820025A@gemini.denx.de>
	<1337761847.2378.71.camel@Manukumar> <4FBD0D43.1060208@freescale.com>
	<1338354171.2370.13.camel@Manukumar> <4FC64859.2070609@freescale.com>
	<1338437711.2367.9.camel@Manukumar> <4FC79A7F.8050003@freescale.com>
	<1338545434.2370.11.camel@Manukumar> <4FC8F89F.5080005@freescale.com>
	<1341484069.3616.14.camel@Manukumar>
	<20120705134543.134da313@aari01-12>
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hello
I checked with the hardware spec
in that
P1020RDB: having connection like 
P1012processor -> PHY -> HUB -> ports

whereas in custom board
P1012processor -> phy -> port(single usb port)

In uboot source code initializing sequence of u-boot
is below:
1.usb_init()
2.usb_scan_devices()
3.usb_new_device(dev)
4.usb_hub_probe(dev, 0)
5.usb_hub_configure(dev)


how can we do this in u-boot source code

manukumar
signal-networks


On Thu, 2012-07-05 at 13:45 +0200, Albert ARIBAUD wrote:
> Hi Manukumar,
> 
> On Thu, 05 Jul 2012 15:57:49 +0530, Manukumar
> <manukumar@signal-networks.com> wrote:
> > Hello,
> > 
> > I have connected USB hard disk to P1020RB 
> 
> Which board is this? Neither "git grep -i P1020RB" nor "find . iname
> '*P1020RB*'" yield any result.
> 
> > and in command prompt(u-boot) i used
> > command
> > => usb start
> > (Re)start USB...
> > USB:   Register 10011 NbrPorts 1
> > USB EHCI 1.00
> > scanning bus for devices... 3 USB Device(s) found
> >        scanning bus for storage devices... 1 Storage Device(s) found
> > 
> > => usb dev
> > 
> > USB device 0: Vendor: Seagate  Rev: 0130 Prod: Portable
> >             Type: Hard Disk
> >             Capacity: 476940.0 MB = 465.7 GB (976773168 x 512)
> > 
> > and USB got detected.
> > 
> > but If i used the same command in our custom board
> > => usb start
> > (Re)start USB...
> > USB:   Register 10011 NbrPorts 1
> > USB EHCI 1.00
> > scanning bus for devices... 1 USB Device(s) found
> >        scanning bus for storage devices... 0 Storage Device(s) found
> > 
> > => usb dev
> > 
> > USB device -1: device type unknown
> > 
> > 
> > How do resolve this issue and why the device is not detecting my USB
> > hard disk.?
> 
> Considering that you're trying this on a custom board, and assuming
> "P1020RB" is a nickname for a board supported in mainline U-Boot, there
> are two possibilities:
> 
> 1) the custom board uses exactly the same U-Boot (source, configuration
> and binaries) as P1020RB, and the issue is in HW, in which case we can
> barely help;
> 
> 2) the custom board uses a custom U-Boot, and we can barely help too,
> as this issue is not about (recent) mainline U-Boot code.
> 
> > manukumar
> > signal-networks
> 
> Amicalement,