On Thu, Oct 25, 2018 at 2:53 PM Icenowy Zheng <icen...@aosc.io> wrote: > > Allwinner 64-bit SoCs can use 4GiB DRAM chip, however their memory map > has only allocated 3GiB for DRAM, so only 3GiB of the DRAM is > accessible. > > Add a Kconfig option for the maximum accessible DRAM. > > For A80 it should be a much higher value (8GiB), but as I have no A80 > device to test and originally U-Boot only supports 2GiB DRAM on A80, it > currently still falls under the 2GiB situation. > > Signed-off-by: Icenowy Zheng <icen...@aosc.io> > --- > This used to be in another patchset targeting 3GiB support. > > Changes in v2: > - Add H6 to SoCs that support 3GiB DRAM. > > arch/arm/mach-sunxi/Kconfig | 8 ++++++++ > 1 file changed, 8 insertions(+) > > diff --git a/arch/arm/mach-sunxi/Kconfig b/arch/arm/mach-sunxi/Kconfig > index 764337c643..e9e1b4bc0e 100644 > --- a/arch/arm/mach-sunxi/Kconfig > +++ b/arch/arm/mach-sunxi/Kconfig > @@ -140,6 +140,14 @@ config MACH_SUNXI_H3_H5 > select SUNXI_GEN_SUN6I > select SUPPORT_SPL > > +# TODO: try out A80's 8GiB DRAM space > +config SUNXI_DRAM_MAX_SIZE > + hex > + default 0xC0000000 if MACH_SUN50I > + default 0xC0000000 if MACH_SUN50I_H5 > + default 0xC0000000 if MACH_SUN50I_H6
Moved in to single line and Applied to u-boot-sunxi/master _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de https://lists.denx.de/listinfo/u-boot
