[PATCH] arm: mach-k3: arm64-mmu: do not map ATF and OPTEE regions in A53 MMU

[kamlesh at ti.com]

From: Kamlesh Gurudasani <kamlesh at ti.com>

Do not include ATF and OPTEE regions in MMU table for am64, am62,
am62a as access to those regions is not allowed anyway.

Create separate table as ATF region are at different location for am64
and am62/am62a.

Signed-off-by: Kamlesh Gurudasani <kamlesh at ti.com>
---
 arch/arm/mach-k3/arm64-mmu.c | 64 +++++++++++++++++++++++++++++++++---
 1 file changed, 59 insertions(+), 5 deletions(-)

diff --git a/arch/arm/mach-k3/arm64-mmu.c b/arch/arm/mach-k3/arm64-mmu.c
index 88687c2d09..f8087d2421 100644
--- a/arch/arm/mach-k3/arm64-mmu.c
+++ b/arch/arm/mach-k3/arm64-mmu.c
@@ -222,14 +222,13 @@ struct mm_region *mem_map = j721s2_mem_map;
 
 #endif /* CONFIG_SOC_K3_J721S2 */
 
-#if defined(CONFIG_SOC_K3_AM642) || defined(CONFIG_SOC_K3_AM625) || \
-	defined(CONFIG_SOC_K3_AM62A7)
+#if defined(CONFIG_SOC_K3_AM625) || defined(CONFIG_SOC_K3_AM62A7)
 
 /* NR_DRAM_BANKS + 32bit IO + 64bit IO + terminator */
-#define NR_MMU_REGIONS	(CONFIG_NR_DRAM_BANKS + 3)
+#define NR_MMU_REGIONS	(CONFIG_NR_DRAM_BANKS + 4)
 
 /* ToDo: Add 64bit IO */
-struct mm_region am64_mem_map[NR_MMU_REGIONS] = {
+struct mm_region am62_mem_map[NR_MMU_REGIONS] = {
 	{
 		.virt = 0x0UL,
 		.phys = 0x0UL,
@@ -240,9 +239,64 @@ struct mm_region am64_mem_map[NR_MMU_REGIONS] = {
 	}, {
 		.virt = 0x80000000UL,
 		.phys = 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
+
+	}, {
+		.virt = 0x880000000UL,
+		.phys = 0x880000000UL,
 		.size = 0x80000000UL,
 		.attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) |
 			 PTE_BLOCK_INNER_SHARE
+	}, {
+		.virt = 0x500000000UL,
+		.phys = 0x500000000UL,
+		.size = 0x400000000UL,
+		.attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
+			 PTE_BLOCK_NON_SHARE |
+			 PTE_BLOCK_PXN | PTE_BLOCK_UXN
+	}, {
+		/* List terminator */
+		0,
+	}
+};
+
+struct mm_region *mem_map = am62_mem_map;
+#endif /* CONFIG_SOC_K3_AM625 || CONFIG_SOC_K3_AM62A7 */
+
+#ifdef CONFIG_SOC_K3_AM642
+
+/* NR_DRAM_BANKS + 32bit IO + 64bit IO + terminator */
+#define NR_MMU_REGIONS	(CONFIG_NR_DRAM_BANKS + 4)
+
+/* ToDo: Add 64bit IO */
+struct mm_region am64_mem_map[NR_MMU_REGIONS] = {
+	{
+		.virt = 0x0UL,
+		.phys = 0x0UL,
+		.size = 0x80000000UL,
+		.attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
+			 PTE_BLOCK_NON_SHARE |
+			 PTE_BLOCK_PXN | PTE_BLOCK_UXN
+	}, {
+		.virt = 0x80000000UL,
+		.phys = 0x80000000UL,
+		.size = 0x1E800000UL,
+		.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
 	}, {
 		.virt = 0x880000000UL,
 		.phys = 0x880000000UL,
@@ -263,4 +317,4 @@ struct mm_region am64_mem_map[NR_MMU_REGIONS] = {
 };
 
 struct mm_region *mem_map = am64_mem_map;
-#endif /* CONFIG_SOC_K3_AM642 || CONFIG_SOC_K3_AM625 || CONFIG_SOC_K3_AM62A7 */
+#endif /* CONFIG_SOC_K3_AM642 */
-- 
2.34.1