The H616 is our first supported Allwinner SoC which goes beyond the 4GB address space "barrier", by having more than 32 address bits.
Lift the preliminary 3GB DRAM limit for the H616, and update the page table setup on the way, to actually map that last GB as well.
This will presumably break the EMAC, as the DMA descriptors only hold 32 bits worth of addresses, but this is no problem for now, as all boards with 4GB of DRAM cannot use the EMAC at the moment (missing PHY support).
Signed-off-by: Andre Przywara andre.przywara@arm.com --- arch/arm/mach-sunxi/Kconfig | 4 ++-- arch/arm/mach-sunxi/board.c | 2 +- 2 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/arch/arm/mach-sunxi/Kconfig b/arch/arm/mach-sunxi/Kconfig index b6463bca71d..4d71030e655 100644 --- a/arch/arm/mach-sunxi/Kconfig +++ b/arch/arm/mach-sunxi/Kconfig @@ -192,10 +192,10 @@ config MACH_SUNXI_H3_H5 select SUPPORT_SPL
# TODO: try out A80's 8GiB DRAM space -# TODO: H616 supports 4 GiB DRAM space config SUNXI_DRAM_MAX_SIZE hex - default 0xC0000000 if MACH_SUN50I || MACH_SUN50I_H5 || MACH_SUN50I_H6 || MACH_SUN50I_H616 + default 0x100000000 if MACH_SUN50I_H616 + default 0xC0000000 if MACH_SUN50I || MACH_SUN50I_H5 || MACH_SUN50I_H6 default 0x80000000
choice diff --git a/arch/arm/mach-sunxi/board.c b/arch/arm/mach-sunxi/board.c index 8cbd926f51d..edcfaee187e 100644 --- a/arch/arm/mach-sunxi/board.c +++ b/arch/arm/mach-sunxi/board.c @@ -56,7 +56,7 @@ static struct mm_region sunxi_mem_map[] = { /* RAM */ .virt = 0x40000000UL, .phys = 0x40000000UL, - .size = 0xC0000000UL, + .size = CONFIG_SUNXI_DRAM_MAX_SIZE, .attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) | PTE_BLOCK_INNER_SHARE }, {