[U-Boot] [RFC PATCH 08/13] arm: nexell: add ARM64 MMU regions

[Andre Przywara]

From: Amit Singh Tomar <amittomer25 at gmail.com>

ARMv8 boards require a struct describing the memory regions for the
mandatory MMU setup.
Add the respective data for the Nexell S5P6818 SoC.

Signed-off-by: Amit Singh Tomar <amittomer25 at gmail.com>
Signed-off-by: Andre Przywara <andre.przywara at arm.com>
---
 arch/arm/mach-nexell/Makefile    |  1 +
 arch/arm/mach-nexell/mmu-arm64.c | 39 +++++++++++++++++++++++++++++++++++++++
 2 files changed, 40 insertions(+)
 create mode 100644 arch/arm/mach-nexell/mmu-arm64.c

diff --git a/arch/arm/mach-nexell/Makefile b/arch/arm/mach-nexell/Makefile
index bf103480bb..c4c8293cbc 100644
--- a/arch/arm/mach-nexell/Makefile
+++ b/arch/arm/mach-nexell/Makefile
@@ -5,3 +5,4 @@
 #
 
 obj-y	:= board.o
+obj-$(CONFIG_ARM64)     += mmu-arm64.o
diff --git a/arch/arm/mach-nexell/mmu-arm64.c b/arch/arm/mach-nexell/mmu-arm64.c
new file mode 100644
index 0000000000..e7b4479c65
--- /dev/null
+++ b/arch/arm/mach-nexell/mmu-arm64.c
@@ -0,0 +1,39 @@
+/*
+ * Copyright (C) 2017 Amit Singh Tomar <amittomer25 at gmail.com>
+ *
+ * SPDX-License-Identifier:     GPL-2.0+
+*/
+
+#include <common.h>
+#include <asm/armv8/mmu.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+static struct mm_region nexell_s5p6818_mem_map[] = {
+	{
+		.virt   = 0xc0000000UL,
+		.phys   = 0xc0000000UL,
+		.size   = 0x20000000UL,
+		.attrs  = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
+				PTE_BLOCK_INNER_SHARE |
+				PTE_BLOCK_PXN | PTE_BLOCK_UXN,
+	}, {
+		.virt   = 0x40000000UL,
+		.phys   = 0x40000000UL,
+		.size   = 0x80000000UL,
+		.attrs  = PTE_BLOCK_MEMTYPE(MT_NORMAL) |
+				PTE_BLOCK_OUTER_SHARE,
+	}, {
+		.virt = 0xFFFF0000ULL,
+		.phys = 0xFFFF0000ULL,
+		.size = 0x00010000ULL,
+		.attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
+			PTE_BLOCK_INNER_SHARE |
+			PTE_BLOCK_PXN | PTE_BLOCK_UXN
+	}, {
+		/* List terminator */
+		0,
+	},
+};
+
+struct mm_region *mem_map = nexell_s5p6818_mem_map;
-- 
2.14.1