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Diffstat (limited to 'arch/arm/mach-orion5x/addr-map.c')
-rw-r--r--arch/arm/mach-orion5x/addr-map.c14
1 files changed, 12 insertions, 2 deletions
diff --git a/arch/arm/mach-orion5x/addr-map.c b/arch/arm/mach-orion5x/addr-map.c
index c14d12137276..6f3f77d031d0 100644
--- a/arch/arm/mach-orion5x/addr-map.c
+++ b/arch/arm/mach-orion5x/addr-map.c
@@ -14,6 +14,7 @@
#include <linux/init.h>
#include <linux/mbus.h>
#include <linux/io.h>
+#include <linux/errno.h>
#include <mach/hardware.h>
#include "common.h"
@@ -44,6 +45,7 @@
#define TARGET_DEV_BUS 1
#define TARGET_PCI 3
#define TARGET_PCIE 4
+#define TARGET_SRAM 9
#define ATTR_PCIE_MEM 0x59
#define ATTR_PCIE_IO 0x51
#define ATTR_PCIE_WA 0x79
@@ -53,6 +55,7 @@
#define ATTR_DEV_CS1 0x1d
#define ATTR_DEV_CS2 0x1b
#define ATTR_DEV_BOOT 0xf
+#define ATTR_SRAM 0x0
/*
* Helpers to get DDR bank info
@@ -87,13 +90,13 @@ static int __init orion5x_cpu_win_can_remap(int win)
return 0;
}
-static void __init setup_cpu_win(int win, u32 base, u32 size,
+static int __init setup_cpu_win(int win, u32 base, u32 size,
u8 target, u8 attr, int remap)
{
if (win >= 8) {
printk(KERN_ERR "setup_cpu_win: trying to allocate "
"window %d\n", win);
- return;
+ return -ENOSPC;
}
writel(base & 0xffff0000, CPU_WIN_BASE(win));
@@ -107,6 +110,7 @@ static void __init setup_cpu_win(int win, u32 base, u32 size,
writel(remap & 0xffff0000, CPU_WIN_REMAP_LO(win));
writel(0, CPU_WIN_REMAP_HI(win));
}
+ return 0;
}
void __init orion5x_setup_cpu_mbus_bridge(void)
@@ -193,3 +197,9 @@ void __init orion5x_setup_pcie_wa_win(u32 base, u32 size)
setup_cpu_win(win_alloc_count++, base, size,
TARGET_PCIE, ATTR_PCIE_WA, -1);
}
+
+int __init orion5x_setup_sram_win(void)
+{
+ return setup_cpu_win(win_alloc_count, ORION5X_SRAM_PHYS_BASE,
+ ORION5X_SRAM_SIZE, TARGET_SRAM, ATTR_SRAM, -1);
+}