Merge branch 'timers-for-linus-migration' of git://git.kernel.org/pub/scm/linux/kerne...

[pandora-kernel.git] / arch / arm / plat-omap / sram.c

diff --git a/arch/arm/plat-omap/sram.c b/arch/arm/plat-omap/sram.c
index bd44d1a..a5b9bcd 100644 (file)
--- a/arch/arm/plat-omap/sram.c
+++ b/arch/arm/plat-omap/sram.c
@@ -6,6 +6,9 @@
  * Copyright (C) 2005 Nokia Corporation
  * Written by Tony Lindgren <tony@atomide.com>
  *
+ * Copyright (C) 2009 Texas Instruments
+ * Added OMAP4 support - Santosh Shilimkar <santosh.shilimkar@ti.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.
@@ -44,6 +47,8 @@
 #define OMAP3_SRAM_VA           0xd7000000
 #define OMAP3_SRAM_PUB_PA       0x40208000
 #define OMAP3_SRAM_PUB_VA       0xd7008000
+#define OMAP4_SRAM_PA          0x40200000              /*0x402f0000*/
+#define OMAP4_SRAM_VA          0xd7000000              /*0xd70f0000*/
 
 #if defined(CONFIG_ARCH_OMAP24XX) || defined(CONFIG_ARCH_OMAP34XX)
 #define SRAM_BOOTLOADER_SZ     0x00
@@ -87,6 +92,10 @@ static int is_sram_locked(void)
 {
        int type = 0;
 
+       if (cpu_is_omap44xx())
+               /* Not yet supported */
+               return 0;
+
        if (cpu_is_omap242x())
                type = omap_rev() & OMAP2_DEVICETYPE_MASK;
 
@@ -135,6 +144,10 @@ void __init omap_detect_sram(void)
                                omap_sram_base = OMAP3_SRAM_VA;
                                omap_sram_start = OMAP3_SRAM_PA;
                                omap_sram_size = 0x10000; /* 64K */
+                       } else if (cpu_is_omap44xx()) {
+                               omap_sram_base = OMAP4_SRAM_VA;
+                               omap_sram_start = OMAP4_SRAM_PA;
+                               omap_sram_size = 0x8000; /* 32K */
                        } else {
                                omap_sram_base = OMAP2_SRAM_VA;
                                omap_sram_start = OMAP2_SRAM_PA;
@@ -212,6 +225,12 @@ void __init omap_map_sram(void)
                omap_sram_io_desc[0].type = MT_MEMORY_NONCACHED;
        }
 
+       if (cpu_is_omap44xx()) {
+               omap_sram_io_desc[0].virtual = OMAP4_SRAM_VA;
+               base = OMAP4_SRAM_PA;
+               base = ROUND_DOWN(base, PAGE_SIZE);
+               omap_sram_io_desc[0].pfn = __phys_to_pfn(base);
+       }
        omap_sram_io_desc[0].length = 1024 * 1024;      /* Use section desc */
        iotable_init(omap_sram_io_desc, ARRAY_SIZE(omap_sram_io_desc));
 
@@ -401,6 +420,8 @@ int __init omap_sram_init(void)
                omap243x_sram_init();
        else if (cpu_is_omap34xx())
                omap34xx_sram_init();
+       else if (cpu_is_omap44xx())
+               omap34xx_sram_init(); /* FIXME: */
 
        return 0;
 }