Beagleboard C4 working kernel

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1

Hi Guys,

I need MTD partition support (command line partition parsing) and USB 2.0 host to work on beagleboard C4. But, the two kernel (2.6.32 and 2.6.35-rc4) that I am using, one of the functionality for each version is not working correctly.

In 2.6.32, the MTD paritition support works correctly, when I cat /proc/mtd or ls /dev/mtd*, I’ve got the info that I need. But, when I attached my usb device it doesn’t detect it.
Then, when I use 2.6.35, the usb 2.0 host works correctly but not mtd information.

What version of the kernel should I use?

Thanks,

John

2

Steve's got a nice nand patch that's good for 2.6.35 here:
http://www.sakoman.com/cgi-bin/gitweb.cgi?p=linux-omap-2.6.git;a=shortlog;h=refs/heads/omap3-2.6.34

Regards,

3

Hi Robert,

I downloaded the source (2.6.35-rc6) and the git3-patch in the mainline, the Nand or USB doesn’t work.

john

4

Hi Robert,
I downloaded the source (2.6.35-rc6) and the git3-patch in the mainline, the
Nand or USB doesn't work.

Hi John,

Oh sorry, I guess I wasn't specific enough, on top of linus' tree
(2.6.35-rc6-git3) you need:

nand: http://www.sakoman.com/cgi-bin/gitweb.cgi?p=linux-omap-2.6.git;a=commit;h=f5426ff33fff704cdd948b8aa55b1a660cd60e5a
(it doesn't merge perfectly so you'll have to clean it up)

Musb or ehci? weird.. both work fine for me with my 2.6.35-rc6 based
kernel, no external patches other then forcing fifo mode 5..

Regards,

5

Hi Robert,

After applying the patch, the mtd works.
The mush does work but the ehci does not. When, I execute lsub, it displayed the message below, but inserting a new device it doesn’t detect it.

Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

Regards,

john

6

Hi John,

Weird, well lets check your config, off the top of my head:

voodoo@lvrm:~/bzr_repo/2.6.35-devel$ cat patches/defconfig | grep TWL
CONFIG_KEYBOARD_TWL4030=m
CONFIG_INPUT_TWL4030_PWRBUTTON=y
CONFIG_INPUT_TWL4030_VIBRA=y
CONFIG_GPIO_TWL4030=y
# CONFIG_TWL4030_WATCHDOG is not set
CONFIG_TWL4030_CORE=y
CONFIG_TWL4030_POWER=y
CONFIG_TWL4030_CODEC=y
CONFIG_REGULATOR_TWL4030=y
CONFIG_SND_SOC_TWL4030=y
CONFIG_SND_SOC_TWL6040=y
CONFIG_TWL4030_USB=y
CONFIG_RTC_DRV_TWL4030=m
voodoo@lvrm:~/bzr_repo/2.6.35-devel$ cat patches/defconfig | grep EHCI
CONFIG_USB_ARCH_HAS_EHCI=y
CONFIG_USB_EHCI_HCD=y
# CONFIG_USB_EHCI_ROOT_HUB_TT is not set
CONFIG_USB_EHCI_TT_NEWSCHED=y
voodoo@lvrm:~/bzr_repo/2.6.35-devel$ cat patches/defconfig | grep MUSB
CONFIG_USB_MUSB_HDRC=y
CONFIG_USB_MUSB_SOC=y
# CONFIG_USB_MUSB_HOST is not set
# CONFIG_USB_MUSB_PERIPHERAL is not set
CONFIG_USB_MUSB_OTG=y
CONFIG_USB_GADGET_MUSB_HDRC=y
CONFIG_USB_MUSB_HDRC_HCD=y
# CONFIG_MUSB_PIO_ONLY is not set
# CONFIG_USB_MUSB_DEBUG is not set

The full config is here:
http://bazaar.launchpad.net/~beagleboard-kernel/%2Bjunk/2.6.35-devel/annotate/head:/patches/defconfig

Otherwise the only other thing could be a pre 2009-9ish u-boot which
disables the ehci power rail on the C4's..

Regards,

7

Hi Robert,

I found the error. The u-boot 2010 version was causing the problem. But, after using the pre-installed u-boot, it works.

Regards,

John

8

Just for clarity (and faq's in-case someone else does it..) which
u-boot 2010 did you have installed? (mainline u-boot i'm guessing?)

Thanks,