On 15-10-27 10:18:47, Marek Vasut wrote:
> On Monday, October 26, 2015 at 01:58:51 PM, Sanchayan Maity wrote:
> > Add board_usb_phy_mode function for detecting whether a port is
> > being used as host or client using a GPIO. On Colibri Vybrid we
> > provide the GPIO 102 for the very same purpose.
> > 
> > Signed-off-by: Sanchayan Maity <[email protected]>
> > ---
> >  board/toradex/colibri_vf/colibri_vf.c | 19 ++++++++++++++++++-
> >  1 file changed, 18 insertions(+), 1 deletion(-)
> > 
> > diff --git a/board/toradex/colibri_vf/colibri_vf.c
> > b/board/toradex/colibri_vf/colibri_vf.c index a6d1c5b..fd90ef2 100644
> > --- a/board/toradex/colibri_vf/colibri_vf.c
> > +++ b/board/toradex/colibri_vf/colibri_vf.c
> > @@ -34,6 +34,7 @@ DECLARE_GLOBAL_DATA_PTR;
> >                     PAD_CTL_DSE_50ohm | PAD_CTL_OBE_IBE_ENABLE)
> > 
> >  #define USB_PEN_GPIO           83
> > +#define USB_CDET_GPIO                      102
> > 
> >  static struct ddrmc_cr_setting colibri_vf_cr_settings[] = {
> >     /* levelling */
> > @@ -92,6 +93,7 @@ static struct ddrmc_cr_setting colibri_vf_cr_settings[] =
> > {
> > 
> >  static const iomux_v3_cfg_t usb_pads[] = {
> >     VF610_PAD_PTD4__GPIO_83,
> > +   VF610_PAD_PTC29__GPIO_102,
> >  };
> > 
> >  int dram_init(void)
> > @@ -280,7 +282,6 @@ static void setup_iomux_gpio(void)
> >             VF610_PAD_PTB23__GPIO_93,
> >             VF610_PAD_PTB26__GPIO_96,
> >             VF610_PAD_PTB28__GPIO_98,
> > -           VF610_PAD_PTC29__GPIO_102,
> >             VF610_PAD_PTC30__GPIO_103,
> >             VF610_PAD_PTA7__GPIO_134,
> >     };
> > @@ -554,4 +555,20 @@ int board_ehci_hcd_init(int port)
> >     }
> >     return 0;
> >  }
> > +
> > +int board_usb_phy_mode(int port)
> > +{
> > +   switch (port) {
> > +   case 0:
> > +           gpio_request(USB_CDET_GPIO, "usb-cdet-gpio");
> 
> The gpio_request() here will fail the second time you do "usb reset" on
> the command line I think. You might want to request this elsewhere.

Hmmm makes sense. I did not try usb reset. Only usb start stop and dfu cmds.
Will check and revert back accordingly.

Thanks.

- Sanchayan.

>
> > +           return gpio_get_value(USB_CDET_GPIO);
> > +           break;
> > +   case 1:
> > +           return 0;
> > +           break;
> > +   default:
> > +           return 0;
> > +           break;
> > +   }
> > +}
> >  #endif
> 
> Best regards,
> Marek Vasut
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