From 10854bcc25e1375e472a9bda73406a15b79600a4 Mon Sep 17 00:00:00 2001 From: Takeshi Kihara Date: Tue, 4 Dec 2018 12:51:01 +0900 Subject: [PATCH] ARM: rcar_gen3: fix protection area access error This patch fixes the problem that "main memory domain AXI secure access protection error" occurs. Exclude the area (0x43f00000 to 0x47DFFFFF) set by DBSC from the map area. Signed-off-by: Takeshi Kihara Signed-off-by: Hiroyuki Yokoyama Signed-off-by: Marek Vasut --- arch/arm/mach-rmobile/memmap-gen3.c | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-) diff --git a/arch/arm/mach-rmobile/memmap-gen3.c b/arch/arm/mach-rmobile/memmap-gen3.c index 0429a2a..3c0f354 100644 --- a/arch/arm/mach-rmobile/memmap-gen3.c +++ b/arch/arm/mach-rmobile/memmap-gen3.c @@ -82,8 +82,16 @@ void enable_caches(void) /* Mark memory reserved by ATF as cacheable too. */ if (start == 0x48000000) { - start = 0x40000000ULL; - size += 0x08000000ULL; + /* Unmark protection area (0x43F00000 to 0x47DFFFFF) */ + gen3_mem_map[i].virt = 0x40000000ULL; + gen3_mem_map[i].phys = 0x40000000ULL; + gen3_mem_map[i].size = 0x03F00000ULL; + gen3_mem_map[i].attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) | + PTE_BLOCK_INNER_SHARE; + i++; + + start = 0x47E00000ULL; + size += 0x00200000ULL; } gen3_mem_map[i].virt = start; -- 2.7.4