On Sep 29, 2011, at 1:21 PM, Tasslehoff Kjappfot wrote:
> We have a board similar to the beagleboard C3, but we have forced musb to
> host-mode and added an "smsc95xx" and an RJ45 connector instead. In 2.6.39 I
> configured the musb driver to operate in host-mode, and that was all that was
> needed to make it work.
>
> In 3.1.0rc4 that option has been removed from the Kconfig, and the default
> configuration of the musb driver is otg-mode. In my boardfile I changed the
> musb_board_data to:
>
> static struct omap_musb_board_data musb_board_data = {
> .interface_type = MUSB_INTERFACE_ULPI,
> .mode = MUSB_HOST,
> .power = 100,
> }
>
> That gives me the following output in dmesg:
>
> [ 0.120544] musb-hdrc: version 6.0, ?dma?, otg (peripheral+host)
> [ 0.120697] omap_device: musb-omap2430.-1: new worst case activate latency
> 0: 30517
> [ 0.120727] musb-hdrc musb-hdrc: musb_init_controller failed with status
> -19
> [ 0.120758] (NULL device *): gadget not registered.
>
> Reading drivers/usb/musb/omap2430.c, it seems the problem is that no
> transceiver is configured, but I'm not sure if its a configuration problem or
> a bug.
>
> Tasslehoff
Finally got around to looking at this a bit more. The issue is that no
musb->isr is configured. omap2430.c doesn't set up an isr, so it should use the
generic one. That one is, however, enclosed in the following #ifdef's:
#if defined(CONFIG_SOC_OMAP2430) || defined(CONFIG_SOC_OMAP3430) ||
defined(CONFIG_ARCH_OMAP4) || defined(CONFIG_ARCH_U8500) ||
defined(CONFIG_ARCH_U5500)
None of these are set in my defconfig, but I see that CONFIG_SOC_OMAP3430 was
set in the old one. Should this one be set for my 3530-board, or is there a
missing condition here?
- Tasslehoff--
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