X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=arch%2Farm%2Fmach-orion5x%2Faddr-map.c;h=6f0dbda6c44c46768825d90a29d681eaa3ad2330;hb=f6dc8ccaab6d8f63cbae1e6c73fe972b26f5376c;hp=186f51ce7c114ac883c6b34b639c394c16824678;hpb=d236f5a5f77183c270223e8816804e7763463282;p=pandora-kernel.git

diff --git a/arch/arm/mach-orion5x/addr-map.c b/arch/arm/mach-orion5x/addr-map.c
index 186f51ce7c11..6f0dbda6c44c 100644
--- a/arch/arm/mach-orion5x/addr-map.c
+++ b/arch/arm/mach-orion5x/addr-map.c
@@ -34,11 +34,7 @@
  * Non-CPU Masters address decoding --
  * Unlike the CPU, we setup the access from Orion's master interfaces to DDR
  * banks only (the typical use case).
- * Setup access for each master to DDR is issued by common.c.
- *
- * Note: although orion_setbits() and orion_clrbits() are not atomic
- * no locking is necessary here since code in this file is only called
- * at boot time when there is no concurrency issues.
+ * Setup access for each master to DDR is issued by platform device setup.
  */
 
 /*
@@ -48,10 +44,6 @@
 #define TARGET_DEV_BUS		1
 #define TARGET_PCI		3
 #define TARGET_PCIE		4
-#define ATTR_DDR_CS(n)		(((n) ==0) ? 0xe :	\
-				((n) == 1) ? 0xd :	\
-				((n) == 2) ? 0xb :	\
-				((n) == 3) ? 0x7 : 0xf)
 #define ATTR_PCIE_MEM		0x59
 #define ATTR_PCIE_IO		0x51
 #define ATTR_PCIE_WA		0x79
@@ -61,17 +53,12 @@
 #define ATTR_DEV_CS1		0x1d
 #define ATTR_DEV_CS2		0x1b
 #define ATTR_DEV_BOOT		0xf
-#define WIN_EN			1
 
 /*
  * Helpers to get DDR bank info
  */
-#define DDR_BASE_CS(n)		ORION5X_DDR_REG(0x1500 + ((n) * 8))
-#define DDR_SIZE_CS(n)		ORION5X_DDR_REG(0x1504 + ((n) * 8))
-#define DDR_MAX_CS		4
-#define DDR_REG_TO_SIZE(reg)	(((reg) | 0xffffff) + 1)
-#define DDR_REG_TO_BASE(reg)	((reg) & 0xff000000)
-#define DDR_BANK_EN		1
+#define DDR_BASE_CS(n)		ORION5X_DDR_REG(0x1500 + ((n) << 3))
+#define DDR_SIZE_CS(n)		ORION5X_DDR_REG(0x1504 + ((n) << 3))
 
 /*
  * CPU Address Decode Windows registers
@@ -83,6 +70,7 @@
 
 
 struct mbus_dram_target_info orion5x_mbus_dram_info;
+static int __initdata win_alloc_count;
 
 static int __init orion5x_cpu_win_can_remap(int win)
 {
@@ -100,16 +88,22 @@ static int __init orion5x_cpu_win_can_remap(int win)
 static void __init setup_cpu_win(int win, u32 base, u32 size,
 				 u8 target, u8 attr, int remap)
 {
-	orion5x_write(CPU_WIN_BASE(win), base & 0xffff0000);
-	orion5x_write(CPU_WIN_CTRL(win),
-		((size - 1) & 0xffff0000) | (attr << 8) | (target << 4) | 1);
+	if (win >= 8) {
+		printk(KERN_ERR "setup_cpu_win: trying to allocate "
+				"window %d\n", win);
+		return;
+	}
+
+	writel(base & 0xffff0000, CPU_WIN_BASE(win));
+	writel(((size - 1) & 0xffff0000) | (attr << 8) | (target << 4) | 1,
+		CPU_WIN_CTRL(win));
 
 	if (orion5x_cpu_win_can_remap(win)) {
 		if (remap < 0)
 			remap = base;
 
-		orion5x_write(CPU_WIN_REMAP_LO(win), remap & 0xffff0000);
-		orion5x_write(CPU_WIN_REMAP_HI(win), 0);
+		writel(remap & 0xffff0000, CPU_WIN_REMAP_LO(win));
+		writel(0, CPU_WIN_REMAP_HI(win));
 	}
 }
 
@@ -122,11 +116,11 @@ void __init orion5x_setup_cpu_mbus_bridge(void)
 	 * First, disable and clear windows.
 	 */
 	for (i = 0; i < 8; i++) {
-		orion5x_write(CPU_WIN_BASE(i), 0);
-		orion5x_write(CPU_WIN_CTRL(i), 0);
+		writel(0, CPU_WIN_BASE(i));
+		writel(0, CPU_WIN_CTRL(i));
 		if (orion5x_cpu_win_can_remap(i)) {
-			orion5x_write(CPU_WIN_REMAP_LO(i), 0);
-			orion5x_write(CPU_WIN_REMAP_HI(i), 0);
+			writel(0, CPU_WIN_REMAP_LO(i));
+			writel(0, CPU_WIN_REMAP_HI(i));
 		}
 	}
 
@@ -141,6 +135,7 @@ void __init orion5x_setup_cpu_mbus_bridge(void)
 		TARGET_PCIE, ATTR_PCIE_MEM, -1);
 	setup_cpu_win(3, ORION5X_PCI_MEM_PHYS_BASE, ORION5X_PCI_MEM_SIZE,
 		TARGET_PCI, ATTR_PCI_MEM, -1);
+	win_alloc_count = 4;
 
 	/*
 	 * Setup MBUS dram target info.
@@ -160,8 +155,8 @@ void __init orion5x_setup_cpu_mbus_bridge(void)
 			w = &orion5x_mbus_dram_info.cs[cs++];
 			w->cs_index = i;
 			w->mbus_attr = 0xf & ~(1 << i);
-			w->base = base & 0xff000000;
-			w->size = (size | 0x00ffffff) + 1;
+			w->base = base & 0xffff0000;
+			w->size = (size | 0x0000ffff) + 1;
 		}
 	}
 	orion5x_mbus_dram_info.num_cs = cs;
@@ -169,25 +164,30 @@ void __init orion5x_setup_cpu_mbus_bridge(void)
 
 void __init orion5x_setup_dev_boot_win(u32 base, u32 size)
 {
-	setup_cpu_win(4, base, size, TARGET_DEV_BUS, ATTR_DEV_BOOT, -1);
+	setup_cpu_win(win_alloc_count++, base, size,
+		      TARGET_DEV_BUS, ATTR_DEV_BOOT, -1);
 }
 
 void __init orion5x_setup_dev0_win(u32 base, u32 size)
 {
-	setup_cpu_win(5, base, size, TARGET_DEV_BUS, ATTR_DEV_CS0, -1);
+	setup_cpu_win(win_alloc_count++, base, size,
+		      TARGET_DEV_BUS, ATTR_DEV_CS0, -1);
 }
 
 void __init orion5x_setup_dev1_win(u32 base, u32 size)
 {
-	setup_cpu_win(6, base, size, TARGET_DEV_BUS, ATTR_DEV_CS1, -1);
+	setup_cpu_win(win_alloc_count++, base, size,
+		      TARGET_DEV_BUS, ATTR_DEV_CS1, -1);
 }
 
 void __init orion5x_setup_dev2_win(u32 base, u32 size)
 {
-	setup_cpu_win(7, base, size, TARGET_DEV_BUS, ATTR_DEV_CS2, -1);
+	setup_cpu_win(win_alloc_count++, base, size,
+		      TARGET_DEV_BUS, ATTR_DEV_CS2, -1);
 }
 
 void __init orion5x_setup_pcie_wa_win(u32 base, u32 size)
 {
-	setup_cpu_win(7, base, size, TARGET_PCIE, ATTR_PCIE_WA, -1);
+	setup_cpu_win(win_alloc_count++, base, size,
+		      TARGET_PCIE, ATTR_PCIE_WA, -1);
 }