[U-Boot] [PATCH v4 07/11] vexpress64: Add MMU tables

[Alexander Graf]

There's no good excuse for running with caches disabled on AArch64,
so let's just move the vexpress64 target to enable the MMU and run
with caches on.

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

---

v1 -> v2:

  - Move tables to .c file
---
 board/armltd/vexpress64/vexpress64.c | 21 +++++++++++++++++++++
 include/configs/vexpress_aemv8a.h    |  6 +++---
 2 files changed, 24 insertions(+), 3 deletions(-)

diff --git a/board/armltd/vexpress64/vexpress64.c b/board/armltd/vexpress64/vexpress64.c
index 6efc8c1..973b579 100644
--- a/board/armltd/vexpress64/vexpress64.c
+++ b/board/armltd/vexpress64/vexpress64.c
@@ -14,6 +14,7 @@
 #include <dm/platdata.h>
 #include <dm/platform_data/serial_pl01x.h>
 #include "pcie.h"
+#include <asm/armv8/mmu.h>
 
 DECLARE_GLOBAL_DATA_PTR;
 
@@ -28,6 +29,26 @@ U_BOOT_DEVICE(vexpress_serials) = {
 	.platdata = &serial_platdata,
 };
 
+static struct mm_region vexpress64_mem_map[] = {
+	{
+		.base = 0x0UL,
+		.size = 0x80000000UL,
+		.attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
+			 PTE_BLOCK_NON_SHARE |
+			 PTE_BLOCK_PXN | PTE_BLOCK_UXN
+	}, {
+		.base = 0x80000000UL,
+		.size = 0xff80000000UL,
+		.attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) |
+			 PTE_BLOCK_INNER_SHARE
+	}, {
+		/* List terminator */
+		0,
+	}
+};
+
+struct mm_region *mem_map = vexpress64_mem_map;
+
 /* This function gets replaced by platforms supporting PCIe.
  * The replacement function, eg. on Juno, initialises the PCIe bus.
  */
diff --git a/include/configs/vexpress_aemv8a.h b/include/configs/vexpress_aemv8a.h
index 133041b..ddb9848 100644
--- a/include/configs/vexpress_aemv8a.h
+++ b/include/configs/vexpress_aemv8a.h
@@ -19,9 +19,9 @@
 
 #define CONFIG_SUPPORT_RAW_INITRD
 
-/* Cache Definitions */
-#define CONFIG_SYS_DCACHE_OFF
-#define CONFIG_SYS_ICACHE_OFF
+/* MMU Definitions */
+#define CONFIG_SYS_CACHELINE_SIZE	64
+#define CONFIG_SYS_FULL_VA
 
 #define CONFIG_IDENT_STRING		" vexpress_aemv8a"
 #define CONFIG_BOOTP_VCI_STRING		"U-Boot.armv8.vexpress_aemv8a"
-- 
1.8.5.6