On Tue, Oct 24, 2023 at 12:32:35PM +0100, Caleb Connolly wrote: > Add a new config option to allow u-boot to reuse the FDT provided by the > previous stage bootloader when available. > > On some boards the previous stage bootloader can populate > platform-specific parts of the devicetree such as the memory node, this > allows us to avoid hardcoding it in u-boot and instead determine it > dynamically at runtime. > > Signed-off-by: Caleb Connolly <caleb.conno...@linaro.org> > --- > This patch will improve generic support for Qualcomm boards by enabling > us to configure the memory map at runtime rather than having hardcoded > maps on a per-device basis. I've gone for this approach initially to try > and avoid introducing board specific code where possible, but I'm happy > to rework this into mach-snapdragon if that's preferred. > --- > base-commit: e65b5d35c9116485366bb08138043d51220551da > > // Caleb (they/them) > --- > arch/arm/lib/save_prev_bl_data.c | 7 +++++++ > boot/Kconfig | 10 ++++++++++ > include/init.h | 9 +++++++++ > lib/fdtdec.c | 7 ++++++-
So what is different with this instead of using save_boot_params ? I'm not saying this isn't needed, but I don't immediately see why save_boot_params + (OF_HAS_PRIOR_STAGE=y&&OF_BOARD=y) isn't the solution to the problem. -- Tom
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