[U-Boot] [PATCH v4 09/11] hikey: Add MMU tables

Alexander Graf agraf at suse.de
Fri Feb 26 01:49:19 CET 2016


The hikey runs with dcache disabled today. There really should be no reason
not to use caches on AArch64, so let's add MMU definitions and enable the
dcache.

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

---

v1 -> v2:

  - Move tables to .c file
---
 board/hisilicon/hikey/hikey.c | 21 +++++++++++++++++++++
 include/configs/hikey.h       |  5 +++--
 2 files changed, 24 insertions(+), 2 deletions(-)

diff --git a/board/hisilicon/hikey/hikey.c b/board/hisilicon/hikey/hikey.c
index c4ae40b..1edc807 100644
--- a/board/hisilicon/hikey/hikey.c
+++ b/board/hisilicon/hikey/hikey.c
@@ -19,6 +19,7 @@
 #include <asm/arch/periph.h>
 #include <asm/arch/pinmux.h>
 #include <asm/arch/hi6220.h>
+#include <asm/armv8/mmu.h>
 
 /*TODO drop this table in favour of device tree */
 static const struct hikey_gpio_platdata hi6220_gpio[] = {
@@ -87,6 +88,26 @@ U_BOOT_DEVICE(hikey_seriala) = {
 	.platdata = &serial_platdata,
 };
 
+static struct mm_region hikey_mem_map[] = {
+	{
+		.base = 0x0UL,
+		.size = 0x80000000UL,
+		.attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) |
+			 PTE_BLOCK_INNER_SHARE
+	}, {
+		.base = 0x80000000UL,
+		.size = 0x80000000UL,
+		.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 = hikey_mem_map;
+
 #ifdef CONFIG_BOARD_EARLY_INIT_F
 int board_uart_init(void)
 {
diff --git a/include/configs/hikey.h b/include/configs/hikey.h
index 796861e..d33dcef 100644
--- a/include/configs/hikey.h
+++ b/include/configs/hikey.h
@@ -21,8 +21,9 @@
 
 #define CONFIG_SUPPORT_RAW_INITRD
 
-/* Cache Definitions */
-#define CONFIG_SYS_DCACHE_OFF
+/* MMU Definitions */
+#define CONFIG_SYS_CACHELINE_SIZE	64
+#define CONFIG_SYS_FULL_VA
 
 #define CONFIG_IDENT_STRING		"hikey"
 
-- 
1.8.5.6



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