On Mon, Sep 4, 2017 at 10:21 PM, Stefan Agner <ste...@agner.ch> wrote: > From: Stefan Agner <stefan.ag...@toradex.com> > > The current mechanism using SCR/GPR registers work well when > the serial downloader boot mode has been selected explicitly > (either via boot mode pins or using bmode command). However, > in case the system entered boot ROM due to unbootable primary > boot devices (e.g. empty eMMC), the SPL fails to detect that > it has been downloaded through serial loader and tries to > continue booting from eMMC: > Trying to boot from MMC1 > mmc_load_image_raw_sector: mmc block read error > SPL: failed to boot from all boot devices > ### ERROR ### Please RESET the board ### > > The only known way to reliably detect USB serial downloader > is by checking the USB PHY receiver block power state... > > Signed-off-by: Stefan Agner <stefan.ag...@toradex.com> > Acked-by: Marcel Ziswiler <marcel.ziswi...@toradex.com>
This allows Serial Download Protocol to work on imx6q sabresd: Tested-by: Fabio Estevam <fabio.este...@nxp.com> _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de https://lists.denx.de/listinfo/u-boot
