Re: [patch/rft 2.6.29-rc3-omap-git] omap3 evm: MMC switch support

[David Brownell <david-b@pacbell.net>]

On Wednesday 04 February 2009, Pillai, Manikandan wrote:
> I tested the patch on the OMAP 3 EVM. I still find that the
> hotplug feature does not work on the OMAP3 EVM. The issue is
> that if I read the gpio_cd, I am getting the correct value
> on the gpio pin(INSERT = 0, PLUGOUT = 1) but the interrupts
> are not generated.  
> 
> The mmc0 interrupts always shows 0.

Are you getting any other IRQs through the twl4030 code?

There's not a lot of debugging I can do with this, since
I don't have an EVM ... and since this seems to work OK
on other boards.  (Testing on SDP being easiest, since
it's got a slot not tied down with MMC root.)

This patch was basically sent as a seed, since nobody
else seemed to be filling in the missing MMC/SD pieces
on that board.

- Dave


> root@172.24.190.49:~# cat /proc/interrupts 
>            CPU0
>  11:          0        INTC  prcm
>  12:          4        INTC  DMA
>  25:          0        INTC  dispc
>  37:       1724        INTC  gp timer
>  56:        267        INTC  i2c_omap
>  57:          0        INTC  i2c_omap
>  61:          0        INTC  i2c_omap
>  72:        178        INTC  serial idle, serial
>  73:          1        INTC  serial idle
>  74:          1        INTC  serial idle
>  83:         43        INTC  mmc0
>  92:          0        INTC  musb_hdrc
>  93:          0        INTC  musb_hdrc
> 335:          0        GPIO  ads7846
> 336:       3565        GPIO  eth0
> 369:          0     twl4030  twl4030_keypad
> 378:          0     twl4030  twl4030_usb
> 384:          0     twl4030  mmc0
> Err:          0
> 
> Regards
> Mani
> 
> > -----Original Message-----
> > From: linux-omap-owner@vger.kernel.org [mailto:linux-omap-
> > owner@vger.kernel.org] On Behalf Of David Brownell
> > Sent: Thursday, February 05, 2009 4:53 AM
> > To: OMAP
> > Subject: [patch/rft 2.6.29-rc3-omap-git] omap3 evm: MMC switch support
> > 
> > Update OMAP3 EVM board support to support the MMC/SD switches,
> > when used with the twl4030 based power card.
> > 
> > Also, less usefully, LEDB as a GPIO LED ... it's on the underside
> > of the board, so it's probably not very useful to most folk.  The
> > LCD backlight is controlled by LEDA though; more useful, though
> > its PWM mode might not be practical on this board (I don't know
> > how that inductor will affect things).
> > 
> > This is done from schematics, so it needs testing (and maybe some
> > bugfixes) from folk with an EVM board.
> >


--
To unsubscribe from this list: send the line "unsubscribe linux-omap" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html