[ARM] Kirkwood: create a mapping for the Security Accelerator SRAM

Always creating the physical mapping should do no harm, so let's remove
the interface that was provided for its optional creation and make the
mapping static.

Signed-off-by: Nicolas Pitre <nico@marvell.com>

4 files changed, 12 insertions, 8 deletions

diff --git a/arch/arm/include/asm/sizes.h b/arch/arm/include/asm/sizes.h
index ada93a8fc2ef..4fc1565e4f93 100644
--- a/arch/arm/include/asm/sizes.h
+++ b/arch/arm/include/asm/sizes.h
@@ -29,6 +29,7 @@
 #define SZ_512                          0x00000200
 
 #define SZ_1K                           0x00000400
+#define SZ_2K                           0x00000800
 #define SZ_4K                           0x00001000
 #define SZ_8K                           0x00002000
 #define SZ_16K                          0x00004000
diff --git a/arch/arm/mach-kirkwood/addr-map.c b/arch/arm/mach-kirkwood/addr-map.c
index 5db4f0bbe5ee..1da5d1c18ecb 100644
--- a/arch/arm/mach-kirkwood/addr-map.c
+++ b/arch/arm/mach-kirkwood/addr-map.c
@@ -20,6 +20,7 @@
  */
 #define TARGET_DDR              0
 #define TARGET_DEV_BUS          1
+#define TARGET_SRAM             3
 #define TARGET_PCIE             4
 #define ATTR_DEV_SPI_ROM        0x1e
 #define ATTR_DEV_BOOT           0x1d
@@ -30,6 +31,7 @@
 #define ATTR_DEV_CS0            0x3e
 #define ATTR_PCIE_IO            0xe0
 #define ATTR_PCIE_MEM           0xe8
+#define ATTR_SRAM               0x01
 
 /*
  * Helpers to get DDR bank info
@@ -48,7 +50,6 @@
 
 
 struct mbus_dram_target_info kirkwood_mbus_dram_info;
-static int __initdata win_alloc_count;
 
 static int __init cpu_win_can_remap(int win)
 {
@@ -112,7 +113,11 @@ void __init kirkwood_setup_cpu_mbus(void)
         setup_cpu_win(2, KIRKWOOD_NAND_MEM_PHYS_BASE, KIRKWOOD_NAND_MEM_SIZE,
                       TARGET_DEV_BUS, ATTR_DEV_NAND, -1);
 
-        win_alloc_count = 3;
+        /*
+         * Setup window for SRAM.
+         */
+        setup_cpu_win(3, KIRKWOOD_SRAM_PHYS_BASE, KIRKWOOD_SRAM_SIZE,
+                      TARGET_SRAM, ATTR_SRAM, -1);
 
         /*
          * Setup MBUS dram target info.
@@ -140,8 +145,3 @@ void __init kirkwood_setup_cpu_mbus(void)
         }
         kirkwood_mbus_dram_info.num_cs = cs;
 }
-
-void __init kirkwood_setup_sram_win(u32 base, u32 size)
-{
-        setup_cpu_win(win_alloc_count++, base, size, 0x03, 0x00, -1);
-}
diff --git a/arch/arm/mach-kirkwood/common.h b/arch/arm/mach-kirkwood/common.h
index 9de525664bb3..d7de43464358 100644
--- a/arch/arm/mach-kirkwood/common.h
+++ b/arch/arm/mach-kirkwood/common.h
@@ -26,7 +26,6 @@ void kirkwood_init_irq(void);
 
 extern struct mbus_dram_target_info kirkwood_mbus_dram_info;
 void kirkwood_setup_cpu_mbus(void);
-void kirkwood_setup_sram_win(u32 base, u32 size);
 
 void kirkwood_pcie_id(u32 *dev, u32 *rev);
 
diff --git a/arch/arm/mach-kirkwood/include/mach/kirkwood.h b/arch/arm/mach-kirkwood/include/mach/kirkwood.h
index 00be8c524f06..2172224d7e2d 100644
--- a/arch/arm/mach-kirkwood/include/mach/kirkwood.h
+++ b/arch/arm/mach-kirkwood/include/mach/kirkwood.h
@@ -20,12 +20,16 @@
  * f1000000     on-chip peripheral registers
  * f2000000     PCIe I/O space
  * f3000000     NAND controller address window
+ * f4000000     Security Accelerator SRAM
  *
  * virt         phys            size
  * fee00000     f1000000        1M      on-chip peripheral registers
  * fef00000     f2000000        1M      PCIe I/O space
  */
 
+#define KIRKWOOD_SRAM_PHYS_BASE         0xf4000000
+#define KIRKWOOD_SRAM_SIZE              SZ_2K
+
 #define KIRKWOOD_NAND_MEM_PHYS_BASE     0xf3000000
 #define KIRKWOOD_NAND_MEM_SIZE          SZ_1K