From: Alexander Graf <agraf@suse.de>
Date: Fri, 4 Mar 2016 00:09:48 +0000 (+0100)
Subject: thunderx: Move mmu table into board file
X-Git-Url: http://git.dujemihanovic.xyz/login.html?a=commitdiff_plain;h=d473f0c621513d3f1c42888c113b68f65b7e81cf;p=u-boot.git

thunderx: Move mmu table into board file

The MMU range table can vary depending on things we may only find
out at runtime. While the very simple ThunderX variant does not
change, other boards will, so move the definition from a static
entry in a header file to the board file.

Signed-off-by: Alexander Graf <agraf@suse.de>
---

diff --git a/arch/arm/cpu/armv8/cache_v8.c b/arch/arm/cpu/armv8/cache_v8.c
index 73628c9611..55c6f2f259 100644
--- a/arch/arm/cpu/armv8/cache_v8.c
+++ b/arch/arm/cpu/armv8/cache_v8.c
@@ -36,8 +36,6 @@ DECLARE_GLOBAL_DATA_PTR;
  */
 
 #ifdef CONFIG_SYS_FULL_VA
-static struct mm_region mem_map[] = CONFIG_SYS_MEM_MAP;
-
 static u64 get_tcr(int el, u64 *pips, u64 *pva_bits)
 {
 	u64 max_addr = 0;
@@ -46,7 +44,7 @@ static u64 get_tcr(int el, u64 *pips, u64 *pva_bits)
 	int i;
 
 	/* Find the largest address we need to support */
-	for (i = 0; i < ARRAY_SIZE(mem_map); i++)
+	for (i = 0; mem_map[i].size || mem_map[i].attrs; i++)
 		max_addr = max(max_addr, mem_map[i].base + mem_map[i].size);
 
 	/* Calculate the maximum physical (and thus virtual) address */
@@ -266,7 +264,7 @@ static int count_required_pts(u64 addr, int level, u64 maxaddr)
 	int i;
 	enum pte_type pte_type = PTE_INVAL;
 
-	for (i = 0; i < ARRAY_SIZE(mem_map); i++) {
+	for (i = 0; mem_map[i].size || mem_map[i].attrs; i++) {
 		struct mm_region *map = &mem_map[i];
 		u64 start = map->base;
 		u64 end = start + map->size;
@@ -364,7 +362,7 @@ static void setup_pgtables(void)
 	create_table();
 
 	/* Now add all MMU table entries one after another to the table */
-	for (i = 0; i < ARRAY_SIZE(mem_map); i++)
+	for (i = 0; mem_map[i].size || mem_map[i].attrs; i++)
 		add_map(&mem_map[i]);
 
 	/* Create the same thing once more for our emergency page table */
diff --git a/arch/arm/include/asm/armv8/mmu.h b/arch/arm/include/asm/armv8/mmu.h
index 1c490dcd10..06126c88d8 100644
--- a/arch/arm/include/asm/armv8/mmu.h
+++ b/arch/arm/include/asm/armv8/mmu.h
@@ -203,6 +203,8 @@ struct mm_region {
 	u64 size;
 	u64 attrs;
 };
+
+extern struct mm_region *mem_map;
 #endif
 
 #endif /* _ASM_ARMV8_MMU_H_ */
diff --git a/board/cavium/thunderx/thunderx.c b/board/cavium/thunderx/thunderx.c
index b9267676dc..9131a385fd 100644
--- a/board/cavium/thunderx/thunderx.c
+++ b/board/cavium/thunderx/thunderx.c
@@ -10,6 +10,7 @@
 #include <linux/compiler.h>
 
 #include <cavium/atf.h>
+#include <asm/armv8/mmu.h>
 
 #if !CONFIG_IS_ENABLED(OF_CONTROL)
 #include <dm/platdata.h>
@@ -42,6 +43,29 @@ U_BOOT_DEVICE(thunderx_serial1) = {
 
 DECLARE_GLOBAL_DATA_PTR;
 
+static struct mm_region thunderx_mem_map[] = {
+	{
+		.base = 0x000000000000UL,
+		.size = 0x40000000000UL,
+		.attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) | PTE_BLOCK_NON_SHARE,
+	}, {
+		.base = 0x800000000000UL,
+		.size = 0x40000000000UL,
+		.attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
+			 PTE_BLOCK_NON_SHARE,
+	}, {
+		.base = 0x840000000000UL,
+		.size = 0x40000000000UL,
+		.attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
+			 PTE_BLOCK_NON_SHARE,
+	}, {
+		/* List terminator */
+		0,
+	}
+};
+
+struct mm_region *mem_map = thunderx_mem_map;
+
 int board_init(void)
 {
 	return 0;
diff --git a/include/configs/thunderx_88xx.h b/include/configs/thunderx_88xx.h
index 36b6ce8df2..01cd2e40f5 100644
--- a/include/configs/thunderx_88xx.h
+++ b/include/configs/thunderx_88xx.h
@@ -26,17 +26,6 @@
 
 #define CONFIG_SYS_LOWMEM_BASE		MEM_BASE
 
-#define CONFIG_SYS_MEM_MAP		{{0x000000000000UL, 0x40000000000UL, \
-					  PTE_BLOCK_MEMTYPE(MT_NORMAL) |     \
-					  PTE_BLOCK_NON_SHARE},	     \
-					 {0x800000000000UL, 0x40000000000UL, \
-					  PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) | \
-					  PTE_BLOCK_NON_SHARE},	     \
-					 {0x840000000000UL, 0x40000000000UL, \
-					  PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) | \
-					  PTE_BLOCK_NON_SHARE},	     \
-					}
-
 #define CONFIG_SYS_MEM_MAP_SIZE		3
 
 #define CONFIG_SYS_VA_BITS		48