Hi Mark, On Tue, 28 Mar 2023 at 08:19, Mark Kettenis <mark.kette...@xs4all.nl> wrote: > > > From: Simon Glass <s...@chromium.org> > > Date: Tue, 28 Mar 2023 08:02:24 +1300 > > > > Hi, > > > > On Mon, 27 Mar 2023 at 23:47, Konrad Dybcio <konrad.dyb...@linaro.org> > > wrote: > > > > > > Mark's and Dzmitry's approaches come down to the same thing.. Let's > > > unify them by first removing the static keyword from the common file > > > to allow the variable to be reused, then renaming "reg0" to the more > > > sensible fw_dtb_pointer coming from the Apple file and finally remove > > > the mach-apple implementation of this very thing and enable the common > > > approach in the respective defconfig. > > > > > > Only build-tested. > > > > > > Signed-off-by: Konrad Dybcio <konrad.dyb...@linaro.org> > > > --- > > > arch/arm/lib/save_prev_bl_data.c | 14 +++++++------- > > > arch/arm/mach-apple/Makefile | 1 - > > > arch/arm/mach-apple/lowlevel_init.S | 17 ----------------- > > > configs/apple_m1_defconfig | 1 + > > > 4 files changed, 8 insertions(+), 25 deletions(-) > > > > Perhaps we could start using a bloblist (in preparation for the coming > > Firmware Handoff [1] [2]) to pass information between stages? > > We don't have TPL or SPL on these machines, only U-Boot proper. And > the handoff protocol between m1n1 and U-Boot is defined by [3]. I > have zero interest in changing that and my guess is that Hector Martin > feels the same.
This has nothing to do with TPL, nor SPL. It is a way of communicating between projects. I hope you can both find the time and inclination to support firmware standardisation as it evolves. Projects need to work together. Regards, Simon > > Cheers, > > Mark > > [3] https://docs.kernel.org/arm64/booting.html