74 lines
1.9 KiB
C
74 lines
1.9 KiB
C
/* linux/arch/arm/plat-s5p/dev-mfc.c
|
|
*
|
|
* 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);
|