Hello Sascha, On 26.08.21 18:57, Ahmad Fatoum wrote: > According to the i.MX8MP RM rev3, the bootrom expects the bootloader to > sit directly at the start of the eMMC boot partition. > > The 32K offset is only valid for eMMC user partitions and SD. Reflect > this in the code. This should allow changing the update handler for > the i.MX8MP-EVK from using the eMMC user area to using the eMMC boot > partition. This isn't done here, because the change wasn't tested > on actual hardware. > > Signed-off-by: Ahmad Fatoum <a.fatoum@xxxxxxxxxxxxxx> > --- > Change is untested. Would be great if someone can confirm on actual HW. > (And adjust the EVK boot handler) please dismiss. This is superseded by https://lore.barebox.org/barebox/c4653e6641f43249c0a511b211e0ea08be56afb3.camel@xxxxxxxxxxxxxx/T/#t > --- > arch/arm/mach-imx/imx-bbu-internal.c | 11 ++++++++++- > 1 file changed, 10 insertions(+), 1 deletion(-) > > diff --git a/arch/arm/mach-imx/imx-bbu-internal.c b/arch/arm/mach-imx/imx-bbu-internal.c > index 880f8b249642..32c6f44fb4ac 100644 > --- a/arch/arm/mach-imx/imx-bbu-internal.c > +++ b/arch/arm/mach-imx/imx-bbu-internal.c > @@ -393,6 +393,15 @@ static unsigned long imx_bbu_flash_header_offset_mmc(void) > return SZ_1K; > } > > +static unsigned long imx_bbu_flash_header_offset_mmcboot(void) > +{ > + if (cpu_is_mx8mp()) > + return 0; > + > + /* Older i.MX use for boot partition the same offset as eMMC user/SD */ > + return imx_bbu_flash_header_offset_mmc(); > +} > + > static int imx_bbu_update(struct bbu_handler *handler, struct bbu_data *data) > { > struct imx_internal_bbu_handler *imx_handler = > @@ -608,7 +617,7 @@ static int imx_bbu_internal_mmcboot_register_handler(const char *name, > struct imx_internal_bbu_handler *imx_handler; > > imx_handler = __init_handler(name, devicefile, flags); > - imx_handler->flash_header_offset = imx_bbu_flash_header_offset_mmc(); > + imx_handler->flash_header_offset = imx_bbu_flash_header_offset_mmcboot(); > > imx_handler->handler.handler = imx_bbu_internal_mmcboot_update; > > -- Pengutronix e.K. | | Steuerwalder Str. 21 | http://www.pengutronix.de/ | 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 | _______________________________________________ barebox mailing list barebox@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/barebox
