[U-Boot] [PATCH] ARM: rmobile: Fix the memory map on Gen3

[Marek Vasut]

Fix up the memory map on Gen3 to match datasheet properly.
This simplifies the memory map setup as well, since we do
no longer need this massive complexity.

Signed-off-by: Marek Vasut <marek.vasut+renesas at gmail.com>
Cc: Nobuhiro Iwamatsu <iwamatsu at nigauri.org>
---
 arch/arm/mach-rmobile/cpu_info.c             |  3 -
 arch/arm/mach-rmobile/include/mach/rmobile.h |  1 -
 arch/arm/mach-rmobile/memmap-gen3.c          | 92 +++-------------------------
 3 files changed, 9 insertions(+), 87 deletions(-)

diff --git a/arch/arm/mach-rmobile/cpu_info.c b/arch/arm/mach-rmobile/cpu_info.c
index ba87d21b73..ce15741c41 100644
--- a/arch/arm/mach-rmobile/cpu_info.c
+++ b/arch/arm/mach-rmobile/cpu_info.c
@@ -18,9 +18,6 @@ int arch_cpu_init(void)
 #ifndef CONFIG_SYS_DCACHE_OFF
 void enable_caches(void)
 {
-#if defined(CONFIG_RCAR_GEN3)
-	rcar_gen3_memmap_fixup();
-#endif
 	dcache_enable();
 }
 #endif
diff --git a/arch/arm/mach-rmobile/include/mach/rmobile.h b/arch/arm/mach-rmobile/include/mach/rmobile.h
index ff0ca63f02..94ea366f45 100644
--- a/arch/arm/mach-rmobile/include/mach/rmobile.h
+++ b/arch/arm/mach-rmobile/include/mach/rmobile.h
@@ -41,7 +41,6 @@
 u32 rmobile_get_cpu_type(void);
 u32 rmobile_get_cpu_rev_integer(void);
 u32 rmobile_get_cpu_rev_fraction(void);
-void rcar_gen3_memmap_fixup(void);
 #endif /* __ASSEMBLY__ */
 
 #endif /* __ASM_ARCH_RMOBILE_H */
diff --git a/arch/arm/mach-rmobile/memmap-gen3.c b/arch/arm/mach-rmobile/memmap-gen3.c
index 801e392425..52cd000a17 100644
--- a/arch/arm/mach-rmobile/memmap-gen3.c
+++ b/arch/arm/mach-rmobile/memmap-gen3.c
@@ -9,77 +9,24 @@
 #include <common.h>
 #include <asm/armv8/mmu.h>
 
-static struct mm_region r8a7795_mem_map[] = {
+static struct mm_region gen3_mem_map[] = {
 	{
 		.virt = 0x0UL,
 		.phys = 0x0UL,
-		.size = 0x80000000UL,
-		.attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) |
-			 PTE_BLOCK_INNER_SHARE
-	}, {
-		.virt = 0x80000000UL,
-		.phys = 0x80000000UL,
-		.size = 0x80000000UL,
-		.attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
-			 PTE_BLOCK_NON_SHARE |
-			 PTE_BLOCK_PXN | PTE_BLOCK_UXN
-	}, {
-		/* List terminator */
-		0,
-	}
-};
-
-static struct mm_region r8a7796_mem_map[] = {
-	{
-		.virt = 0x0UL,
-		.phys = 0x0UL,
-		.size = 0xe0000000UL,
-		.attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) |
-			 PTE_BLOCK_INNER_SHARE
-	}, {
-		.virt = 0xe0000000UL,
-		.phys = 0xe0000000UL,
-		.size = 0xe0000000UL,
+		.size = 0x40000000UL,
 		.attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
 			 PTE_BLOCK_NON_SHARE |
 			 PTE_BLOCK_PXN | PTE_BLOCK_UXN
 	}, {
-		/* List terminator */
-		0,
-	}
-};
-
-static struct mm_region r8a77970_mem_map[] = {
-	{
-		.virt = 0x0UL,
-		.phys = 0x0UL,
-		.size = 0xe0000000UL,
-		.attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) |
-			 PTE_BLOCK_INNER_SHARE
-	}, {
-		.virt = 0xe0000000UL,
-		.phys = 0xe0000000UL,
-		.size = 0xe0000000UL,
-		.attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
-			 PTE_BLOCK_NON_SHARE |
-			 PTE_BLOCK_PXN | PTE_BLOCK_UXN
-	}, {
-		/* List terminator */
-		0,
-	}
-};
-
-static struct mm_region r8a77995_mem_map[] = {
-	{
-		.virt = 0x0UL,
-		.phys = 0x0UL,
-		.size = 0xe0000000UL,
+		.virt = 0x40000000UL,
+		.phys = 0x40000000UL,
+		.size = 0x80000000UL,
 		.attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) |
 			 PTE_BLOCK_INNER_SHARE
 	}, {
-		.virt = 0xe0000000UL,
-		.phys = 0xe0000000UL,
-		.size = 0xe0000000UL,
+		.virt = 0xc0000000UL,
+		.phys = 0xc0000000UL,
+		.size = 0x40000000UL,
 		.attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
 			 PTE_BLOCK_NON_SHARE |
 			 PTE_BLOCK_PXN | PTE_BLOCK_UXN
@@ -89,25 +36,4 @@ static struct mm_region r8a77995_mem_map[] = {
 	}
 };
 
-struct mm_region *mem_map = r8a7795_mem_map;
-
-void rcar_gen3_memmap_fixup(void)
-{
-	u32 cpu_type = rmobile_get_cpu_type();
-
-	switch (cpu_type) {
-	case RMOBILE_CPU_TYPE_R8A7795:
-		mem_map = r8a7795_mem_map;
-		break;
-	case RMOBILE_CPU_TYPE_R8A7796:
-	case RMOBILE_CPU_TYPE_R8A77965:
-		mem_map = r8a7796_mem_map;
-		break;
-	case RMOBILE_CPU_TYPE_R8A77970:
-		mem_map = r8a77970_mem_map;
-		break;
-	case RMOBILE_CPU_TYPE_R8A77995:
-		mem_map = r8a77995_mem_map;
-		break;
-	}
-}
+struct mm_region *mem_map = gen3_mem_map;
-- 
2.16.2