linux_dsm_epyc7002/arch/arm/mach-exynos/s5p-dev-mfc.c
Kukjin Kim b93b315d44 ARM: SAMSUNG: make local s5p-dev-mfc in mach-exynos
This patch moves s5p-dev-mfc from plat-samsung into mach-exynos
because it is used for only exynos no other platforms.

Cc: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Kukjin Kim <kgene@kernel.org>
2015-07-30 01:49:00 +09:00

95 lines
2.3 KiB
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 <linux/of_fdt.h>
#include <linux/of.h>
static struct platform_device s5p_device_mfc_l;
static struct platform_device s5p_device_mfc_r;
struct s5p_mfc_dt_meminfo {
unsigned long loff;
unsigned long lsize;
unsigned long roff;
unsigned long rsize;
char *compatible;
};
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;
static 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;
}
}
}
int __init s5p_fdt_alloc_mfc_mem(unsigned long node, const char *uname,
int depth, void *data)
{
const __be32 *prop;
int len;
struct s5p_mfc_dt_meminfo mfc_mem;
if (!data)
return 0;
if (!of_flat_dt_is_compatible(node, data))
return 0;
prop = of_get_flat_dt_prop(node, "samsung,mfc-l", &len);
if (!prop || (len != 2 * sizeof(unsigned long)))
return 0;
mfc_mem.loff = be32_to_cpu(prop[0]);
mfc_mem.lsize = be32_to_cpu(prop[1]);
prop = of_get_flat_dt_prop(node, "samsung,mfc-r", &len);
if (!prop || (len != 2 * sizeof(unsigned long)))
return 0;
mfc_mem.roff = be32_to_cpu(prop[0]);
mfc_mem.rsize = be32_to_cpu(prop[1]);
s5p_mfc_reserve_mem(mfc_mem.roff, mfc_mem.rsize,
mfc_mem.loff, mfc_mem.lsize);
return 1;
}