> On 13.02.2019, at 21:19, Simon Goldschmidt <simon.k.r.goldschm...@gmail.com> > wrote: > > Am 13.02.2019 um 21:13 schrieb Heinrich Schuchardt: >> The SPL image for the rk3288 boards has to fit into 32 KiB. This includes >> 4 KiB for the device tree and up to 2 KiB for the file header. > > I'm not related to this board (and don't mean to step against this patch), > but I have similar problems on socfpga (though with 64 KiB, not 32 KiB) and > trying to solve them, so: > > How do you know the DTB is 4 KiB maximum? Is there a check for this? > > Aside from that, I don't know how it is for rk3288, but socfpga allocates > initial stack, heap and 'gd' into the same RAM, so available size check > should also substract that from my 64 KiB. How is this handled here?
The RK3288 has ~ 100kB of SRAM, but the BootROM has a size limitation on loading the SPL stage. So stack will always be located beyond the end of the SPL. > Regards, > Simon > >> Without the patch we missed to see that the TinkerBoard >> spl/u-boot-spl-dtb.bin file is too big. >> Signed-off-by: Heinrich Schuchardt <xypron.g...@gmx.de> >> --- >> include/configs/rk3288_common.h | 2 ++ >> 1 file changed, 2 insertions(+) >> diff --git a/include/configs/rk3288_common.h >> b/include/configs/rk3288_common.h >> index c59f5eff7a..7c8d01ec50 100644 >> --- a/include/configs/rk3288_common.h >> +++ b/include/configs/rk3288_common.h >> @@ -23,6 +23,8 @@ >> #define CONFIG_SYS_INIT_SP_ADDR 0x00100000 >> #define CONFIG_SYS_LOAD_ADDR 0x00800800 >> #define CONFIG_SPL_STACK 0xff718000 >> +/* 32 KiB - 4 KiB for dtb - 2 KiB for file header */ >> +#define CONFIG_SPL_MAX_SIZE (0x8000 - 0x1800) >> #if defined(CONFIG_SPL_BUILD) && defined(CONFIG_TPL_BOOTROM_SUPPORT) >> # define CONFIG_SPL_TEXT_BASE 0x0 >> #else > > _______________________________________________ > U-Boot mailing list > U-Boot@lists.denx.de <mailto:U-Boot@lists.denx.de> > https://lists.denx.de/listinfo/u-boot <https://lists.denx.de/listinfo/u-boot> _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de https://lists.denx.de/listinfo/u-boot
