[U-Boot] [PATCH] ehci-omap: fix for enabling the correct usb port

Jeroen Hofstee dasuboot at myspectrum.nl
Fri Apr 20 08:43:36 CEST 2012


On 04/20/2012 12:42 AM, Tom Rini wrote:
> I don't see any difference between the first usb start and the 
> following resets, should there have been? Clearly, there's a problem, 
> but lets see if we can fix all of it in time.. Thanks!
Sorry, it was incomplete. The resets are just to indicate it is never 
working,
below is the complete listing. With the patch at least the usb works, it 
needs
an additional reset though (hence the resets without the patch as well).

Regards,
Jeroen

U-Boot 2012.04-rc3-dirty (Apr 19 2012 - 21:38:38)

AM35XX-GP ES1.0, CPU-OPP2, L3-165MHz, Max CPU Clock 600 Mhz
TAM3517 TWISTER Board + LPDDR/NAND
I2C:   ready
DRAM:  256 MiB
NAND:  512 MiB
MMC:   OMAP SD/MMC: 0
In:    serial
Out:   serial
Err:   serial
Die ID #746c0000000000000155dc1405011024
Net:   DaVinci-EMAC, smc911x-0
Hit any key to stop autoboot:  0
twister => usb start
(Re)start USB...
USB:   Register 1313 NbrPorts 3
USB EHCI 1.00
scanning bus for devices... 1 USB Device(s) found
        scanning bus for storage devices... 0 Storage Device(s) found
twister => usb reset
(Re)start USB...
USB:   Register 1313 NbrPorts 3
USB EHCI 1.00
scanning bus for devices... 1 USB Device(s) found
        scanning bus for storage devices... 0 Storage Device(s) found
twister => usb reset
(Re)start USB...
USB:   Register 1313 NbrPorts 3
USB EHCI 1.00
scanning bus for devices... 1 USB Device(s) found
        scanning bus for storage devices... 0 Storage Device(s) found
twister => usb reset
(Re)start USB...
USB:   Register 1313 NbrPorts 3
USB EHCI 1.00
scanning bus for devices... 1 USB Device(s) found
        scanning bus for storage devices... 0 Storage Device(s) found

=== with the patch ===
!note it needs usb reset

U-Boot 2012.04-rc3-dirty (Apr 19 2012 - 21:48:37)

AM35XX-GP ES1.0, CPU-OPP2, L3-165MHz, Max CPU Clock 600 Mhz
TAM3517 TWISTER Board + LPDDR/NAND
I2C:   ready
DRAM:  256 MiB
NAND:  512 MiB
MMC:   OMAP SD/MMC: 0
In:    serial
Out:   serial
Err:   serial
Die ID #746c0000000000000155dc1405011024
Net:   DaVinci-EMAC, smc911x-0
Hit any key to stop autoboot:  0
twister => usb start
(Re)start USB...
USB:   Register 1313 NbrPorts 3
USB EHCI 1.00
scanning bus for devices... 1 USB Device(s) found
        scanning bus for storage devices... 0 Storage Device(s) found
twister => usb reset
(Re)start USB...
USB:   Register 1313 NbrPorts 3
USB EHCI 1.00
scanning bus for devices... 3 USB Device(s) found
        scanning bus for storage devices... 1 Storage Device(s) found



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