ATF and OPTEE regions may be firewalled from non-secure entities. To prevent access to this area we leave a hole there in the MMU map. This is the same idea as [0] but we complete that patch by adding the same for AM65, J721e, J7200, and J721s2 here.
[0] commit 0688ff3ae23c ("arm: mach-k3: arm64-mmu: do not map ATF and OPTEE regions in A53 MMU")
Signed-off-by: Andrew Davis afd@ti.com --- arch/arm/mach-k3/arm64-mmu.c | 14 ++++++++++---- 1 file changed, 10 insertions(+), 4 deletions(-)
diff --git a/arch/arm/mach-k3/arm64-mmu.c b/arch/arm/mach-k3/arm64-mmu.c index d872ed714c4..5c858ae0f84 100644 --- a/arch/arm/mach-k3/arm64-mmu.c +++ b/arch/arm/mach-k3/arm64-mmu.c @@ -24,7 +24,7 @@ struct mm_region am654_mem_map[] = { }, { .virt = 0x80000000UL, .phys = 0x80000000UL, - .size = 0x20000000UL, + .size = 0x1e780000UL, .attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) | PTE_BLOCK_INNER_SHARE }, { @@ -75,7 +75,7 @@ struct mm_region j7200_mem_map[] = { }, { .virt = 0x80000000UL, .phys = 0x80000000UL, - .size = 0x20000000UL, + .size = 0x1e780000UL, .attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) | PTE_BLOCK_INNER_SHARE }, { @@ -123,7 +123,7 @@ struct mm_region j721e_mem_map[] = { }, { .virt = 0x80000000UL, .phys = 0x80000000UL, - .size = 0x20000000UL, + .size = 0x1e780000UL, .attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) | PTE_BLOCK_INNER_SHARE }, { @@ -180,7 +180,13 @@ struct mm_region j721s2_mem_map[] = { }, { .virt = 0x80000000UL, .phys = 0x80000000UL, - .size = 0x80000000UL, + .size = 0x1e780000UL, + .attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) | + PTE_BLOCK_INNER_SHARE + }, { + .virt = 0xa0000000UL, + .phys = 0xa0000000UL, + .size = 0x60000000UL, .attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) | PTE_BLOCK_INNER_SHARE }, {