Add a CONFIG_MTK_MEM_MAP_DDR_BASE_PHY variable to specify the DDR base physical address for the Mediatek ARMv8 memory map. This will be used by MT8196 in the future which has a different DDR base address than other Mediatek SoCs.
Signed-off-by: David Lechner <[email protected]> --- v2 changes: new patch in v2 --- arch/arm/mach-mediatek/Kconfig | 6 ++++++ arch/arm/mach-mediatek/armv8-mem-map.c | 4 ++-- 2 files changed, 8 insertions(+), 2 deletions(-) diff --git a/arch/arm/mach-mediatek/Kconfig b/arch/arm/mach-mediatek/Kconfig index 33717a1864f..d10aedc303b 100644 --- a/arch/arm/mach-mediatek/Kconfig +++ b/arch/arm/mach-mediatek/Kconfig @@ -132,6 +132,12 @@ endchoice if ARM64 +config MTK_MEM_MAP_DDR_BASE_PHY + hex "DDR physical base address" + default 0x40000000 + help + Target-specific DDR physical base address. + config MTK_MEM_MAP_DDR_SIZE hex "DDR .size in mem_map" default 0x200000000 if TARGET_MT7987 || TARGET_MT7988 || TARGET_MT8188 diff --git a/arch/arm/mach-mediatek/armv8-mem-map.c b/arch/arm/mach-mediatek/armv8-mem-map.c index 3587a2a9dd2..cbaa9b4c267 100644 --- a/arch/arm/mach-mediatek/armv8-mem-map.c +++ b/arch/arm/mach-mediatek/armv8-mem-map.c @@ -5,8 +5,8 @@ static struct mm_region mediatek_mem_map[] = { { /* DDR */ - .virt = 0x40000000UL, - .phys = 0x40000000UL, + .virt = CONFIG_MTK_MEM_MAP_DDR_BASE_PHY, + .phys = CONFIG_MTK_MEM_MAP_DDR_BASE_PHY, .size = CONFIG_MTK_MEM_MAP_DDR_SIZE, .attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) | PTE_BLOCK_OUTER_SHARE, }, { -- 2.43.0
