3 files changed, 81 insertions, 47 deletions

diff --git a/arch/arm/mach-omap1/Makefile b/arch/arm/mach-omap1/Makefile
index cd169c386161..f0e69cbc5baa 100644
--- a/arch/arm/mach-omap1/Makefile
+++ b/arch/arm/mach-omap1/Makefile
@@ -3,7 +3,8 @@
 #
 
 # Common support
-obj-y := io.o id.o sram.o time.o irq.o mux.o flash.o serial.o devices.o dma.o
+obj-y := io.o id.o sram-init.o sram.o time.o irq.o mux.o flash.o \
+         serial.o devices.o dma.o
 obj-y += clock.o clock_data.o opp_data.o reset.o pm_bus.o timer.o
 
 ifneq ($(CONFIG_SND_OMAP_SOC_MCBSP),)
diff --git a/arch/arm/mach-omap1/sram-init.c b/arch/arm/mach-omap1/sram-init.c
new file mode 100644
index 000000000000..6431b0f862ce
--- /dev/null
+++ b/arch/arm/mach-omap1/sram-init.c
@@ -0,0 +1,76 @@
+/*
+ * OMAP SRAM detection and management
+ *
+ * Copyright (C) 2005 Nokia Corporation
+ * Written by Tony Lindgren <tony@atomide.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/io.h>
+
+#include <asm/fncpy.h>
+#include <asm/tlb.h>
+#include <asm/cacheflush.h>
+
+#include <asm/mach/map.h>
+
+#include "soc.h"
+#include "sram.h"
+
+#define OMAP1_SRAM_PA           0x20000000
+#define SRAM_BOOTLOADER_SZ      0x80
+
+/*
+ * The amount of SRAM depends on the core type.
+ * Note that we cannot try to test for SRAM here because writes
+ * to secure SRAM will hang the system. Also the SRAM is not
+ * yet mapped at this point.
+ */
+static void __init omap_detect_and_map_sram(void)
+{
+        unsigned long omap_sram_skip = SRAM_BOOTLOADER_SZ;
+        unsigned long omap_sram_start = OMAP1_SRAM_PA;
+        unsigned long omap_sram_size;
+
+        if (cpu_is_omap7xx())
+                omap_sram_size = 0x32000;       /* 200K */
+        else if (cpu_is_omap15xx())
+                omap_sram_size = 0x30000;       /* 192K */
+        else if (cpu_is_omap1610() || cpu_is_omap1611() ||
+                        cpu_is_omap1621() || cpu_is_omap1710())
+                omap_sram_size = 0x4000;        /* 16K */
+        else {
+                pr_err("Could not detect SRAM size\n");
+                omap_sram_size = 0x4000;
+        }
+
+        omap_map_sram(omap_sram_start, omap_sram_size,
+                omap_sram_skip, 1);
+}
+
+static void (*_omap_sram_reprogram_clock)(u32 dpllctl, u32 ckctl);
+
+void omap_sram_reprogram_clock(u32 dpllctl, u32 ckctl)
+{
+        BUG_ON(!_omap_sram_reprogram_clock);
+        /* On 730, bit 13 must always be 1 */
+        if (cpu_is_omap7xx())
+                ckctl |= 0x2000;
+        _omap_sram_reprogram_clock(dpllctl, ckctl);
+}
+
+int __init omap_sram_init(void)
+{
+        omap_detect_and_map_sram();
+        _omap_sram_reprogram_clock =
+                        omap_sram_push(omap1_sram_reprogram_clock,
+                                        omap1_sram_reprogram_clock_sz);
+
+        return 0;
+}
diff --git a/arch/arm/plat-omap/sram.c b/arch/arm/plat-omap/sram.c
index aa2644a1ca83..6fd32162964f 100644
--- a/arch/arm/plat-omap/sram.c
+++ b/arch/arm/plat-omap/sram.c
@@ -26,8 +26,6 @@
 
 #include <asm/mach/map.h>
 
-#include "../mach-omap1/soc.h"
-#include "../mach-omap1/sram.h"
 #include "../mach-omap2/soc.h"
 #include "../mach-omap2/sram.h"
 
@@ -36,7 +34,6 @@
 #include "../mach-omap2/prm2xxx_3xxx.h"
 #include "../mach-omap2/sdrc.h"
 
-#define OMAP1_SRAM_PA           0x20000000
 #define OMAP2_SRAM_PUB_PA       (OMAP2_SRAM_PA + 0xf800)
 #define OMAP3_SRAM_PUB_PA       (OMAP3_SRAM_PA + 0x8000)
 #ifdef CONFIG_OMAP4_ERRATA_I688
@@ -150,20 +147,6 @@ static void __init omap_detect_sram(void)
                                         omap_sram_size = 0x10000; /* 64K */
                         }
                 }
-        } else {
-                omap_sram_start = OMAP1_SRAM_PA;
-
-                if (cpu_is_omap7xx())
-                        omap_sram_size = 0x32000;       /* 200K */
-                else if (cpu_is_omap15xx())
-                        omap_sram_size = 0x30000;       /* 192K */
-                else if (cpu_is_omap1610() || cpu_is_omap1611() ||
-                                cpu_is_omap1621() || cpu_is_omap1710())
-                        omap_sram_size = 0x4000;        /* 16K */
-                else {
-                        pr_err("Could not detect SRAM size\n");
-                        omap_sram_size = 0x4000;
-                }
         }
 }
 
@@ -257,32 +240,6 @@ void __init omap_map_sram(unsigned long start, unsigned long size,
                   omap_sram_size - omap_sram_skip);
 }
 
-#ifdef CONFIG_ARCH_OMAP1
-
-static void (*_omap_sram_reprogram_clock)(u32 dpllctl, u32 ckctl);
-
-void omap_sram_reprogram_clock(u32 dpllctl, u32 ckctl)
-{
-        BUG_ON(!_omap_sram_reprogram_clock);
-        /* On 730, bit 13 must always be 1 */
-        if (cpu_is_omap7xx())
-                ckctl |= 0x2000;
-        _omap_sram_reprogram_clock(dpllctl, ckctl);
-}
-
-static int __init omap1_sram_init(void)
-{
-        _omap_sram_reprogram_clock =
-                        omap_sram_push(omap1_sram_reprogram_clock,
-                                        omap1_sram_reprogram_clock_sz);
-
-        return 0;
-}
-
-#else
-#define omap1_sram_init()       do {} while (0)
-#endif
-
 #if defined(CONFIG_ARCH_OMAP2)
 
 static void (*_omap2_sram_ddr_init)(u32 *slow_dll_ctrl, u32 fast_dll_ctrl,
@@ -407,14 +364,13 @@ static inline int am33xx_sram_init(void)
         return 0;
 }
 
+#ifdef CONFIG_ARCH_OMAP2PLUS
 int __init omap_sram_init(void)
 {
         omap_detect_sram();
         omap_fix_and_map_sram();
 
-        if (!(cpu_class_is_omap2()))
-                omap1_sram_init();
-        else if (cpu_is_omap242x())
+        if (cpu_is_omap242x())
                 omap242x_sram_init();
         else if (cpu_is_omap2430())
                 omap243x_sram_init();
@@ -425,3 +381,4 @@ int __init omap_sram_init(void)
 
         return 0;
 }
+#endif