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

[Joris OFFOUGA]

Le sam. 23 mars 2019 à 14:53, Fabio Estevam <festevam at 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)
>
> 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 at 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 at gmail.com>

>