* Stephen Warren wrote: > Thierry Reding wrote at Tuesday, November 15, 2011 11:49 PM: > > * PGP Signed by an unknown key > > > > * Stephen Warren wrote: > > > Thierry Reding wrote at Tuesday, November 15, 2011 12:19 AM: > > > > NVIDIA's flashing tools assume that the bootloader is loaded at address > > > > 0x00108000. Instead of requiring non-standard builds of those tools > > > > which allow a load address of 0x00E08000, this commit just switches all > > > > Tegra2 boards to use the standard load address. > > > > > > > Note that to successfully boot a standalone U-Boot with this load > > > > address, U-Boot needs to be built with USE_PRIVATE_LIBGCC=yes. > > > > > > Isn't that true irrespective of TEXT_BASE? That's certainly been my > > > experience. > > > > Yes, but the emphasis is on "standalone" since you can run mainline U-Boot > > as > > second stage for quickboot/fastboot and 0x00E08000 as load address without > > building with USE_PRIVATE_LIBGCC=yes. > > OK. I think it's more just "standalone U-Boot" that "standalone U-Boot > with this load address" then. I think the difference is that when running > as a second stage under fastboot, U-Boot might get loaded on the A9 rather > than the AVP, so the ARM ISA of the AVP doesn't come into play, and Tom > Warren said he thought that USE_PRIVATE_LIBGCC=yes was only needed due > to the AVP's ARM ISA difference. > > > The reason for including this in the > > commit message was that it isn't documented anywhere else and I wanted to > > avoid a situation where this question needs to be answered over and over. > > > > Perhaps the commit message is not the best place, but I would still like to > > have this documented somewhere. Any suggestions? > > Can this option be selected by include/configs/tegra2-common.h? I suspect > not since it's more of a make variable. Perhaps it can be forced on by a > Tegra-specific makefile such as arch/arm/cpu/armv7/tegra2/config.mk or > arch/arm/cpu/armv7/tegra2/Makefile? Then it wouldn't need to be documented; > it'd be automatic.
Yes it can: arch/arm/cpu/armv7/tegra2/config.mk is included by the build system. The build output looks okay but I'll double-check if the resulting u-boot.bin actually boots in the morning when I have access to the hardware. I'll add both the CONFIG_SYS_TEXT_BASE (with the comment omitted) and this patch to a series and resend. Thierry
pgpEnP1K4aUjm.pgp
Description: PGP signature
_______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
