[U-Boot] [PATCH v5] colibri_vf: Add board_usb_phy_mode function

[maitysanchayan at gmail.com <maitysanchayan@gmail.com>]

Hello,

On 16-01-07 22:12:29, Stefano Babic wrote:
> Hi,
> 
> On 07/01/2016 21:02, maitysanchayan at gmail.com wrote:
> > Hello Stefano,
> > 
> > Ping?
> > 
> > I just checked the master branch and this has not been picked up yet.
> > 
> 
> Can you check ? I see:
> 
> commit 01a8cf91513981d05bf89840d768e9c060ee998b
> Author: Sanchayan Maity <maitysanchayan@gmail.com>
> Date:   Thu Nov 12 11:47:35 2015 +0530
> 
>     colibri_vf: Add board_usb_phy_mode function

Yes, this seems to be present but the first and second patch in the series
which make changes to the ehci-vf driver are not present.

- Sanchayan.

> 
> Regards,
> Stefano
> 
> > - Sanchayan.
> > 
> > On 15-11-24 11:37:59, Stefano Babic wrote:
> >> On 24/11/2015 11:23, maitysanchayan at gmail.com wrote:
> >>> Hello,
> >>>
> >>> Ping?
> >>>
> >>> Any further feedback? Is the patchset good to get accepted?
> >>
> >> I'll pick it up
> >>
> >> Best regards,
> >> Stefano Babic
> >>
> >>>
> >>> Thanks.
> >>>
> >>> Regards,
> >>> Sanchayan.
> >>>
> >>> On 15-11-12 11:47:35, 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 GPIO 102 for this very same purpose.
> >>>>
> >>>> Signed-off-by: Sanchayan Maity <maitysanchayan@gmail.com>
> >>>> ---
> >>>> Changes since v4:
> >>>> No need to break after return.
> >>>>
> >>>> Changes since v3:
> >>>> Return USB_INIT_DEVICE or USB_INIT_HOST after checking for
> >>>> the GPIO state to account for the fact that the previous
> >>>> logic breaks in case if the enum for USB mode were to ever
> >>>> be changed.
> >>>>
> >>>> Add comments based on Stefan's feedback.
> >>>>
> >>>> Changes since v2:
> >>>>
> >>>> Instead of returning 0 from board_usb_phy_mode return it as
> >>>> USB_INIT_HOST.
> >>>>
> >>>> Changes since v1:
> >>>>
> >>>> Move the GPIO request call to the board_init function as all
> >>>> further calls to board_usb_phy_mode will actually result in the
> >>>> gpio_request failing.
> >>>> ---
> >>>>  board/toradex/colibri_vf/colibri_vf.c | 33 ++++++++++++++++++++++++++++++++-
> >>>>  1 file changed, 32 insertions(+), 1 deletion(-)
> >>>>
> >>>> diff --git a/board/toradex/colibri_vf/colibri_vf.c b/board/toradex/colibri_vf/colibri_vf.c
> >>>> index a6d1c5b..c65ccb3 100644
> >>>> --- a/board/toradex/colibri_vf/colibri_vf.c
> >>>> +++ b/board/toradex/colibri_vf/colibri_vf.c
> >>>> @@ -21,6 +21,7 @@
> >>>>  #include <i2c.h>
> >>>>  #include <g_dnl.h>
> >>>>  #include <asm/gpio.h>
> >>>> +#include <usb.h>
> >>>>  
> >>>>  DECLARE_GLOBAL_DATA_PTR;
> >>>>  
> >>>> @@ -34,6 +35,7 @@ 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 +94,7 @@ 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 +283,6 @@ 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,
> >>>>  	};
> >>>> @@ -509,6 +511,10 @@ int board_init(void)
> >>>>  
> >>>>  	setbits_le32(&scsc->sosc_ctr, SCSC_SOSC_CTR_SOSC_EN);
> >>>>  
> >>>> +#ifdef CONFIG_USB_EHCI_VF
> >>>> +	gpio_request(USB_CDET_GPIO, "usb-cdet-gpio");
> >>>> +#endif
> >>>> +
> >>>>  	return 0;
> >>>>  }
> >>>>  
> >>>> @@ -554,4 +560,29 @@ int board_ehci_hcd_init(int port)
> >>>>  	}
> >>>>  	return 0;
> >>>>  }
> >>>> +
> >>>> +int board_usb_phy_mode(int port)
> >>>> +{
> >>>> +	switch (port) {
> >>>> +	case 0:
> >>>> +		/*
> >>>> +		 * Port 0 is used only in client mode on Colibri Vybrid modules
> >>>> +		 * Check for state of USB client gpio pin and accordingly return
> >>>> +		 * USB_INIT_DEVICE or USB_INIT_HOST.
> >>>> +		 */
> >>>> +		if (gpio_get_value(USB_CDET_GPIO))
> >>>> +			return USB_INIT_DEVICE;
> >>>> +		else
> >>>> +			return USB_INIT_HOST;
> >>>> +	case 1:
> >>>> +		/* Port 1 is used only in host mode on Colibri Vybrid modules */
> >>>> +		return USB_INIT_HOST;
> >>>> +	default:
> >>>> +		/*
> >>>> +		 * There are only two USB controllers on Vybrid. Ideally we will
> >>>> +		 * not reach here. However return USB_INIT_HOST if we do.
> >>>> +		 */
> >>>> +		return USB_INIT_HOST;
> >>>> +	}
> >>>> +}
> >>>>  #endif
> >>>> -- 
> >>>> 2.6.2
> >>>>
> >>
> >>
> >> -- 
> >> =====================================================================
> >> DENX Software Engineering GmbH,      Managing Director: Wolfgang Denk
> >> HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
> >> Phone: +49-8142-66989-53 Fax: +49-8142-66989-80 Email: sbabic at denx.de
> >> =====================================================================
> 
> -- 
> =====================================================================
> DENX Software Engineering GmbH,      Managing Director: Wolfgang Denk
> HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
> Phone: +49-8142-66989-53 Fax: +49-8142-66989-80 Email: sbabic at denx.de
> =====================================================================