[U-Boot] [PATCH] pico-imx7: Disable video support

[Michael Nazzareno Trimarchi <michael@amarulasolutions.com>]

Hi



On Sat., 23 Mar. 2019, 11:16 pm Joris OFFOUGA, <offougajoris@gmail.com>
wrote:

> Le sam. 23 mars 2019 à 14:53, Fabio Estevam <festevam@gmail.com> a écrit :
>
> > Since commit 9e3c0174da842 ("pico-imx7d: Add LCD support") loading U-Boot
> > via USB download mode causes the following hang:
> >
> > SDP: initialize...
> > SDP: handle requests...
> > Downloading file of size 527088 to 0x877fffc0... done
> > Jumping to header at 0x877fffc0
> > Header Tag is not an IMX image
> >
> > U-Boot 2019.04-rc4-00047-gcfb3e102c4 (Mar 23 2019 - 10:45:10 -0300)
> >
> > CPU:   Freescale i.MX7D rev1.2 1000 MHz (running at 792 MHz)
> > CPU:   Commercial temperature grade (0C to 95C) at 40C
> > Reset cause: POR
> > Board: i.MX7D PICOSOM
> > I2C:   ready
> > DRAM:  512 MiB
> >
> > (Hangs here)
> >
>

Are you sure about memory calibration?

Michael

> > When booting from eMMC such hang does not happen and currently
> > we don't have a proper fix for this.  Also, this hang in USB
> > download mode only happens with the older version of the
> > board that has 512MB of memory.
> >
> > As a temporary workaround, remove video support so that users
> > do not have a negative experience in case they brick their board
> > and want to recover from USB.
> >
> > We can re-add video support later when a proper fix is in place.
> >
> > Signed-off-by: Fabio Estevam <festevam@gmail.com>
> > ---
> >  configs/pico-hobbit-imx7d_defconfig | 1 -
> >  configs/pico-pi-imx7d_defconfig     | 1 -
> >  2 files changed, 2 deletions(-)
> >
> > diff --git a/configs/pico-hobbit-imx7d_defconfig
> > b/configs/pico-hobbit-imx7d_defconfig
> > index f58d5171ba..cb4a6bf0bb 100644
> > --- a/configs/pico-hobbit-imx7d_defconfig
> > +++ b/configs/pico-hobbit-imx7d_defconfig
> > @@ -57,5 +57,4 @@ CONFIG_USB_GADGET_MANUFACTURER="FSL"
> >  CONFIG_USB_GADGET_VENDOR_NUM=0x0525
> >  CONFIG_USB_GADGET_PRODUCT_NUM=0xa4a5
> >  CONFIG_CI_UDC=y
> > -CONFIG_VIDEO=y
> >  CONFIG_OF_LIBFDT=y
> > diff --git a/configs/pico-pi-imx7d_defconfig
> > b/configs/pico-pi-imx7d_defconfig
> > index c8ac2ffd5f..8e48ba71be 100644
> > --- a/configs/pico-pi-imx7d_defconfig
> > +++ b/configs/pico-pi-imx7d_defconfig
> > @@ -57,5 +57,4 @@ CONFIG_USB_GADGET_MANUFACTURER="FSL"
> >  CONFIG_USB_GADGET_VENDOR_NUM=0x0525
> >  CONFIG_USB_GADGET_PRODUCT_NUM=0xa4a5
> >  CONFIG_CI_UDC=y
> > -CONFIG_VIDEO=y
> >  CONFIG_OF_LIBFDT=y
> > --
> > 2.17.1
> >
>
> Tested-by: Joris Offouga <offougajoris@gmail.com>
>
> >
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