mirrors
/
linux-stable
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
1
0
Fork 0
Code Issues Releases Wiki Activity

ARM: EXYNOS: Remove code for MFC custom reserved memory handling 

Once MFC driver has been converted to generic reserved memory bindings,
there is no need for custom memory reservation code.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
This commit is contained in:
Marek Szyprowski 2016-05-24 15:31:28 +02:00 committed by Krzysztof Kozlowski
parent 3185462f5f
commit b9bacc1e50
4 changed files with 0 additions and 130 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
arch/arm/mach-exynos/Makefile
View File

@ -23,5 +23,3 @@ AFLAGS_sleep.o :=-Wa,-march=armv7-a$(plus_sec)
obj-$(CONFIG_EXYNOS5420_MCPM) += mcpm-exynos.o
CFLAGS_mcpm-exynos.o += -march=armv7-a
obj-$(CONFIG_S5P_DEV_MFC) += s5p-dev-mfc.o

19
arch/arm/mach-exynos/exynos.c
View File

@ -27,7 +27,6 @@
#include <mach/map.h>
#include "common.h"
#include "mfc.h"
static struct map_desc exynos4_iodesc[] __initdata = {
{
@ -237,23 +236,6 @@ static char const *const exynos_dt_compat[] __initconst = {
NULL
};
static void __init exynos_reserve(void)
{
#ifdef CONFIG_S5P_DEV_MFC
int i;
char *mfc_mem[] = {
"samsung,mfc-v5",
"samsung,mfc-v6",
"samsung,mfc-v7",
"samsung,mfc-v8",
};
for (i = 0; i < ARRAY_SIZE(mfc_mem); i++)
if (of_scan_flat_dt(s5p_fdt_alloc_mfc_mem, mfc_mem[i]))
break;
#endif
}
static void __init exynos_dt_fixup(void)
{
/*
@ -275,6 +257,5 @@ DT_MACHINE_START(EXYNOS_DT, "SAMSUNG EXYNOS (Flattened Device Tree)")
.init_machine = exynos_dt_machine_init,
.init_late = exynos_init_late,
.dt_compat = exynos_dt_compat,
.reserve = exynos_reserve,
.dt_fixup = exynos_dt_fixup,
MACHINE_END

16
arch/arm/mach-exynos/mfc.h
View File

@ -1,16 +0,0 @@
/*
* Copyright (C) 2013 Samsung Electronics Co.Ltd
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*/
#ifndef __MACH_EXYNOS_MFC_H
#define __MACH_EXYNOS_MFC_H __FILE__
int __init s5p_fdt_alloc_mfc_mem(unsigned long node, const char *uname,
int depth, void *data);
#endif /* __MACH_EXYNOS_MFC_H */

93
arch/arm/mach-exynos/s5p-dev-mfc.c
View File

@ -1,93 +0,0 @@
/*
* 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/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;
}