On Mon, Nov 27, 2017 at 10:35:46AM +0100, Neil Armstrong wrote: > As discussed at [1], the Amlogic Meson GX SoCs can embed a BL31 firmware > and a secondary BL32 firmware. > Since mid-2017, the reserved memory address of the BL31 firmware was moved > and grown for security reasons. > > But mainline U-Boot and Linux has the old address and size fixed. > > These SoCs have a register interface to get the two firmware reserved > memory start and sizes. > > This patch adds a dynamic reservation of the memory zones in the device tree > bootmem > reserved memory zone used by the kernel in early boot. > To be complete, the memory zones are also added to the EFI reserved zones. > > Depends on patchset "Add support for Amlogic GXL Based SBCs" at [2]. > > [1] > http://lists.infradead.org/pipermail/linux-amlogic/2017-October/004860.html > [2] > http://lists.infradead.org/pipermail/linux-amlogic/2017-November/005410.html > > Changes since v1: > - switched the #if to if(IS_ENABLED()) to compile all code paths > - renamed function to meson_board_add_reserved_memory() > - added a mem.h header with comment > - updated all boards ft_board_setup() > > Changes since RFC v2: > - reduced preprocessor load > - kept Odroid-C2 static memory mapping as exception > > Changes since RFC v1: > - switch to fdt rsv mem table and efi reserve memory > - replaced in_le32 by readl() > > Reviewed-by: Simon Glass <s...@chromium.org> > Signed-off-by: Neil Armstrong <narmstr...@baylibre.com> > Reviewed-by: Simon Glass <s...@chromium.org>
Applied to u-boot/master, thanks! -- Tom
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