On 2015-10-14 01:36, Albert ARIBAUD wrote: > Hello Stefan, > > On Tue, 13 Oct 2015 23:11:45 -0700, Stefan Agner <[email protected]> > wrote: >> Since the device tree relocation is disabled (fdt_high set to >> 0xffffffff), U-Boot keeps the device tree at its load address >> 0x81000000. The kernel uncompresses itself to 0x80008000 by >> default, hence this limits the maximum (uncompressed) kernel >> size to somewhat below 16MiB, otherwise the device tree gets >> overwritten by the kernel data... >> >> Move the device tree load address to 0x84000000 to avoid that >> the device tree being overwritten by the kernel. > > OOC, why is device tree relocation disabled? I'm asking because by > manually placing the device tree (or anything else) high in DDR, one > runs the risk of overwriting some of U-Boot's data.
I guess this has been done for Cortex-M4 firmwares running from DDR. As Tom pointed out, this can be archived in a nicer way using bootm_size. -- Stefan _______________________________________________ U-Boot mailing list [email protected] http://lists.denx.de/mailman/listinfo/u-boot
