Hi Petr, On Fri, Sep 2, 2016 at 3:57 PM, Petr Kulhavy <br...@jikos.cz> wrote: > Hi, > > you have already brought it to the point - it needs two defconfigs. > This means double the files in U-boot and second and more important, how > does it integrate into a tool like Buildroot?
Buildroot is capable of booting SPL + u-boot.img just fine. Check wandboard support a reference. > In other words I'm trying to do it with just one defconfig. > > Alltogether I want to build 3 files: > * SPL which is started by the RBL > * u-boot.img which is loaded by the SPL from the flash after typing 'c' or > similar on the terminal > * u-boot.imx for an initial load of the board via USB if there is no BL at > all You don't need u-boot.imx to boot the board with imx_usb_loader. Check the README update that Stefano did with this commit: commit 40f4839ce12adfc0223d6e3035cf9c3a4754a0ec Author: Stefano Babic <sba...@denx.de> Date: Fri Dec 11 17:30:42 2015 +0100 imx_common: check for Serial Downloader in spl_boot_device Check for bmode before reading the boot device to check if a serial downloader is started, and returns UART if the serial downloader is set, letting SPL to wait for an image if CONFIG_SPL_YMODEM_SUPPORT is set. This allows to load again a SPL based board with imx_usb_loader together with a tool such as kermit. Signed-off-by: Stefano Babic <sba...@denx.de> CC: Tim Harvey <thar...@gateworks.com> CC: Fabio Estevam <fabio.este...@freescale.com> CC: Eric Nelson <eric.nel...@boundarydevices.com> Reviewed-by: Eric Nelson <e...@nelint.com> Tested-by: Eric Nelson <e...@nelint.com> _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot