1 files changed, 71 insertions, 0 deletions

diff --git a/arch/arm/plat-samsung/s5p-dev-mfc.c b/arch/arm/plat-samsung/s5p-dev-mfc.c
new file mode 100644
index 000000000000..ad6089465e2a
--- /dev/null
+++ b/arch/arm/plat-samsung/s5p-dev-mfc.c
@@ -0,0 +1,71 @@
+/*
+ * Copyright (C) 2010-2011 Samsung Electronics Co.Ltd
+ *
+ * Base S5P MFC resource and device definitions
+ *
+ * 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/kernel.h>
+#include <linux/interrupt.h>
+#include <linux/platform_device.h>
+#include <linux/dma-mapping.h>
+#include <linux/memblock.h>
+#include <linux/ioport.h>
+
+#include <mach/map.h>
+#include <plat/devs.h>
+#include <plat/irqs.h>
+#include <plat/mfc.h>
+
+struct s5p_mfc_reserved_mem {
+        phys_addr_t     base;
+        unsigned long   size;
+        struct device   *dev;
+};
+
+static struct s5p_mfc_reserved_mem s5p_mfc_mem[2] __initdata;
+
+void __init s5p_mfc_reserve_mem(phys_addr_t rbase, unsigned int rsize,
+                                phys_addr_t lbase, unsigned int lsize)
+{
+        int i;
+
+        s5p_mfc_mem[0].dev = &s5p_device_mfc_r.dev;
+        s5p_mfc_mem[0].base = rbase;
+        s5p_mfc_mem[0].size = rsize;
+
+        s5p_mfc_mem[1].dev = &s5p_device_mfc_l.dev;
+        s5p_mfc_mem[1].base = lbase;
+        s5p_mfc_mem[1].size = lsize;
+
+        for (i = 0; i < ARRAY_SIZE(s5p_mfc_mem); i++) {
+                struct s5p_mfc_reserved_mem *area = &s5p_mfc_mem[i];
+                if (memblock_remove(area->base, area->size)) {
+                        printk(KERN_ERR "Failed to reserve memory for MFC device (%ld bytes at 0x%08lx)\n",
+                               area->size, (unsigned long) area->base);
+                        area->base = 0;
+                }
+        }
+}
+
+static int __init s5p_mfc_memory_init(void)
+{
+        int i;
+
+        for (i = 0; i < ARRAY_SIZE(s5p_mfc_mem); i++) {
+                struct s5p_mfc_reserved_mem *area = &s5p_mfc_mem[i];
+                if (!area->base)
+                        continue;
+
+                if (dma_declare_coherent_memory(area->dev, area->base,
+                                area->base, area->size,
+                                DMA_MEMORY_MAP | DMA_MEMORY_EXCLUSIVE) == 0)
+                        printk(KERN_ERR "Failed to declare coherent memory for MFC device (%ld bytes at 0x%08lx)\n",
+                               area->size, (unsigned long) area->base);
+        }
+        return 0;
+}
+device_initcall(s5p_mfc_memory_init);