ARM: OMAP4: Add minimal support for omap4

This patch adds the support for OMAP4. The platform and machine specific
headers and sources updated for OMAP4430 SDP platform.

OMAP4430 is Texas Instrument's SOC based on ARM Cortex-A9 SMP architecture.
It's a dual core SOC with GIC used for interrupt handling and SCU for cache
coherency.

Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

1 files changed, 50 insertions, 2 deletions

diff --git a/arch/arm/mach-omap2/io.c b/arch/arm/mach-omap2/io.c
index 916fcd3a232..32afd944821 100644
--- a/arch/arm/mach-omap2/io.c
+++ b/arch/arm/mach-omap2/io.c
@@ -4,12 +4,14 @@
  * OMAP2 I/O mapping code
  *
  * Copyright (C) 2005 Nokia Corporation
- * Copyright (C) 2007 Texas Instruments
+ * Copyright (C) 2007-2009 Texas Instruments
  *
  * Author:
  *      Juha Yrjola <juha.yrjola@nokia.com>
  *      Syed Khasim <x0khasim@ti.com>
  *
+ * 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.
@@ -30,6 +32,7 @@
 #include <mach/sdrc.h>
 #include <mach/gpmc.h>
 
+#ifndef CONFIG_ARCH_OMAP4       /* FIXME: Remove this once clkdev is ready */
 #include "clock.h"
 
 #include <mach/powerdomain.h>
@@ -38,7 +41,7 @@
 
 #include <mach/clockdomain.h>
 #include "clockdomains.h"
-
+#endif
 /*
  * The machine specific code may provide the extra mapping besides the
  * default mapping provided here.
@@ -166,6 +169,46 @@ static struct map_desc omap34xx_io_desc[] __initdata = {
         },
 };
 #endif
+#ifdef  CONFIG_ARCH_OMAP4
+static struct map_desc omap44xx_io_desc[] __initdata = {
+        {
+                .virtual        = L3_44XX_VIRT,
+                .pfn            = __phys_to_pfn(L3_44XX_PHYS),
+                .length         = L3_44XX_SIZE,
+                .type           = MT_DEVICE,
+        },
+        {
+                .virtual        = L4_44XX_VIRT,
+                .pfn            = __phys_to_pfn(L4_44XX_PHYS),
+                .length         = L4_44XX_SIZE,
+                .type           = MT_DEVICE,
+        },
+        {
+                .virtual        = L4_WK_44XX_VIRT,
+                .pfn            = __phys_to_pfn(L4_WK_44XX_PHYS),
+                .length         = L4_WK_44XX_SIZE,
+                .type           = MT_DEVICE,
+        },
+        {
+                .virtual        = OMAP44XX_GPMC_VIRT,
+                .pfn            = __phys_to_pfn(OMAP44XX_GPMC_PHYS),
+                .length         = OMAP44XX_GPMC_SIZE,
+                .type           = MT_DEVICE,
+        },
+        {
+                .virtual        = L4_PER_44XX_VIRT,
+                .pfn            = __phys_to_pfn(L4_PER_44XX_PHYS),
+                .length         = L4_PER_44XX_SIZE,
+                .type           = MT_DEVICE,
+        },
+        {
+                .virtual        = L4_EMU_44XX_VIRT,
+                .pfn            = __phys_to_pfn(L4_EMU_44XX_PHYS),
+                .length         = L4_EMU_44XX_SIZE,
+                .type           = MT_DEVICE,
+        },
+};
+#endif
 
 void __init omap2_map_common_io(void)
 {
@@ -183,6 +226,9 @@ void __init omap2_map_common_io(void)
         iotable_init(omap34xx_io_desc, ARRAY_SIZE(omap34xx_io_desc));
 #endif
 
+#if defined(CONFIG_ARCH_OMAP4)
+        iotable_init(omap44xx_io_desc, ARRAY_SIZE(omap44xx_io_desc));
+#endif
         /* Normally devicemaps_init() would flush caches and tlb after
          * mdesc->map_io(), but we must also do it here because of the CPU
          * revision check below.
@@ -198,9 +244,11 @@ void __init omap2_map_common_io(void)
 void __init omap2_init_common_hw(struct omap_sdrc_params *sp)
 {
         omap2_mux_init();
+#ifndef CONFIG_ARCH_OMAP4 /* FIXME: Remove this once the clkdev is ready */
         pwrdm_init(powerdomains_omap);
         clkdm_init(clockdomains_omap, clkdm_pwrdm_autodeps);
         omap2_clk_init();
         omap2_sdrc_init(sp);
+#endif
         gpmc_init();
 }