Hi Eric, On Wed, Apr 10, 2013 at 04:10:57PM +0200, Eric Bénard wrote: > this patch allows barebox to run when loaded on the iMX53QSB > using the serial downloader.
What serial downloader do you use? We have a serial downloader here: git://git.pengutronix.de/git/tools/imx-usb-loader.git This one works by parsing the flash headers from the images and executing them manually by doing register writes. It works with the currently generated images just fine. I though about integrating this tool into barebox. Part of the reason for doing this is that this repository also contains a image generation tool which could replace the compiler/linker mechanism we currently use to generate i.MX images. Using a dedicated tool for this job seems more flexible. > > Signed-off-by: Eric Bénard <[email protected]> > --- > arch/arm/boards/freescale-mx53-loco/flash_header.c | 7 +++++++ > 1 file changed, 7 insertions(+) > > diff --git a/arch/arm/boards/freescale-mx53-loco/flash_header.c > b/arch/arm/boards/freescale-mx53-loco/flash_header.c > index dc1162b..5358f0b 100644 > --- a/arch/arm/boards/freescale-mx53-loco/flash_header.c > +++ b/arch/arm/boards/freescale-mx53-loco/flash_header.c > @@ -34,10 +34,17 @@ struct imx_flash_header_v2 __flash_header_section > flash_header = { > .header.length = cpu_to_be16(32), > .header.version = IVT_VERSION, > > +#ifdef CONFIG_ARCH_IMX_INTERNAL_BOOT_SERIAL > + .entry = APP_DEST + 0x400, > + .dcd_ptr = APP_DEST + offsetof(struct > imx_flash_header_v2, dcd), > + .boot_data_ptr = APP_DEST + offsetof(struct > imx_flash_header_v2, boot_data), > + .self = APP_DEST, > +#else > .entry = APP_DEST + 0x1000, > .dcd_ptr = APP_DEST + 0x400 + offsetof(struct > imx_flash_header_v2, dcd), > .boot_data_ptr = APP_DEST + 0x400 + offsetof(struct > imx_flash_header_v2, boot_data), > .self = APP_DEST + 0x400, > +#endif We already have a FLASH_HEADER_OFFSET define which seems to solve half of the problem. Extending the ifdefs already present int the header file should work better. Sascha -- Pengutronix e.K. | | Industrial Linux Solutions | http://www.pengutronix.de/ | Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 | _______________________________________________ barebox mailing list [email protected] http://lists.infradead.org/mailman/listinfo/barebox
