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refactor(plat/allwinner): do not map BL32 DRAM at EL3 

BL31 does not appear to ever access the DRAM allocated to BL32,
so there is no need to map it at EL3.

Signed-off-by: Samuel Holland <samuel@sholland.org>
Change-Id: Ie8727b793e53ea14517894942266f6da0333eb74
This commit is contained in:
Samuel Holland 2020-12-13 20:22:42 -06:00
parent ab74206b60
commit 8d9efdf8a8
2 changed files with 3 additions and 7 deletions
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8
plat/allwinner/common/include/platform_def.h
View File

@ -39,20 +39,18 @@
#define MAX_XLAT_TABLES 1
#define PLAT_VIRT_ADDR_SPACE_SIZE (1ULL << 28)
#define SUNXI_BL33_VIRT_BASE (SUNXI_DRAM_VIRT_BASE + SUNXI_DRAM_SEC_SIZE)
#define SUNXI_BL33_VIRT_BASE SUNXI_DRAM_VIRT_BASE
#endif /* SUNXI_BL31_IN_DRAM */
/* How much memory to reserve as secure for BL32, if configured */
#define SUNXI_DRAM_SEC_SIZE (32U << 20)
/* How much DRAM to map (to map BL33, for fetching the DTB from U-Boot) */
#define SUNXI_DRAM_MAP_SIZE (64U << 20)
#define CACHE_WRITEBACK_SHIFT 6
#define CACHE_WRITEBACK_GRANULE (1 << CACHE_WRITEBACK_SHIFT)
#define MAX_STATIC_MMAP_REGIONS 4
#define MAX_STATIC_MMAP_REGIONS 3
#define MAX_MMAP_REGIONS (5 + MAX_STATIC_MMAP_REGIONS)
#define PLAT_CSS_SCP_COM_SHARED_MEM_BASE \

2
plat/allwinner/common/sunxi_common.c
View File

@ -19,8 +19,6 @@ static const mmap_region_t sunxi_mmap[MAX_STATIC_MMAP_REGIONS + 1] = {
MT_DEVICE | MT_RW | MT_SECURE | MT_EXECUTE_NEVER),
MAP_REGION_FLAT(SUNXI_DEV_BASE, SUNXI_DEV_SIZE,
MT_DEVICE | MT_RW | MT_SECURE | MT_EXECUTE_NEVER),
MAP_REGION(SUNXI_DRAM_BASE, SUNXI_DRAM_VIRT_BASE, SUNXI_DRAM_SEC_SIZE,
MT_RW_DATA | MT_SECURE),
MAP_REGION(PRELOADED_BL33_BASE, SUNXI_BL33_VIRT_BASE,
SUNXI_DRAM_MAP_SIZE, MT_RW_DATA | MT_NS),
{},