redonkable
/
alistair23-linux
1
0
Fork 0
Code Releases Activity

ARM: S5P: Add support for MFC device 

Add support for MFC device to plat-s5p, mach-exynos4, mach-s5pv210:
 - clock support
 - memory mapping and reserving
 - s5p_device_mfc platform device

Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
hifive-unleashed-5.1
Kamil Debski 2011-07-21 16:42:30 +09:00 committed by Kukjin Kim
parent 35ce909ee6
commit 0f75a96bc0
10 changed files with 234 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
arch/arm/Kconfig
View File

@ -753,6 +753,7 @@ config ARCH_S5PV210
bool "Samsung S5PV210/S5PC110"
select CPU_V7
select ARCH_SPARSEMEM_ENABLE
select ARCH_HAS_HOLES_MEMORYMODEL
select GENERIC_GPIO
select HAVE_CLK
select CLKDEV_LOOKUP
@ -770,6 +771,7 @@ config ARCH_EXYNOS4
bool "Samsung EXYNOS4"
select CPU_V7
select ARCH_SPARSEMEM_ENABLE
select ARCH_HAS_HOLES_MEMORYMODEL
select GENERIC_GPIO
select HAVE_CLK
select CLKDEV_LOOKUP

61
arch/arm/mach-exynos4/clock.c
View File

@ -527,6 +527,11 @@ static struct clk init_clocks_off[] = {
.name = "fimg2d",
.enable = exynos4_clk_ip_image_ctrl,
.ctrlbit = (1 << 0),
}, {
.name = "mfc",
.devname = "s5p-mfc",
.enable = exynos4_clk_ip_mfc_ctrl,
.ctrlbit = (1 << 0),
}, {
.name = "i2c",
.devname = "s3c2440-i2c.0",
@ -731,6 +736,52 @@ static struct clksrc_sources clkset_mout_g2d = {
.nr_sources = ARRAY_SIZE(clkset_mout_g2d_list),
};
static struct clk *clkset_mout_mfc0_list[] = {
[0] = &clk_mout_mpll.clk,
[1] = &clk_sclk_apll.clk,
};
static struct clksrc_sources clkset_mout_mfc0 = {
.sources = clkset_mout_mfc0_list,
.nr_sources = ARRAY_SIZE(clkset_mout_mfc0_list),
};
static struct clksrc_clk clk_mout_mfc0 = {
.clk = {
.name = "mout_mfc0",
},
.sources = &clkset_mout_mfc0,
.reg_src = { .reg = S5P_CLKSRC_MFC, .shift = 0, .size = 1 },
};
static struct clk *clkset_mout_mfc1_list[] = {
[0] = &clk_mout_epll.clk,
[1] = &clk_sclk_vpll.clk,
};
static struct clksrc_sources clkset_mout_mfc1 = {
.sources = clkset_mout_mfc1_list,
.nr_sources = ARRAY_SIZE(clkset_mout_mfc1_list),
};
static struct clksrc_clk clk_mout_mfc1 = {
.clk = {
.name = "mout_mfc1",
},
.sources = &clkset_mout_mfc1,
.reg_src = { .reg = S5P_CLKSRC_MFC, .shift = 4, .size = 1 },
};
static struct clk *clkset_mout_mfc_list[] = {
[0] = &clk_mout_mfc0.clk,
[1] = &clk_mout_mfc1.clk,
};
static struct clksrc_sources clkset_mout_mfc = {
.sources = clkset_mout_mfc_list,
.nr_sources = ARRAY_SIZE(clkset_mout_mfc_list),
};
static struct clksrc_clk clk_dout_mmc0 = {
.clk = {
.name = "dout_mmc0",
@ -972,6 +1023,14 @@ static struct clksrc_clk clksrcs[] = {
.sources = &clkset_mout_g2d,
.reg_src = { .reg = S5P_CLKSRC_IMAGE, .shift = 8, .size = 1 },
.reg_div = { .reg = S5P_CLKDIV_IMAGE, .shift = 0, .size = 4 },
}, {
.clk = {
.name = "sclk_mfc",
.devname = "s5p-mfc",
},
.sources = &clkset_mout_mfc,
.reg_src = { .reg = S5P_CLKSRC_MFC, .shift = 8, .size = 1 },
.reg_div = { .reg = S5P_CLKDIV_MFC, .shift = 0, .size = 4 },
}, {
.clk = {
.name = "sclk_mmc",
@ -1049,6 +1108,8 @@ static struct clksrc_clk *sysclks[] = {
&clk_dout_mmc2,
&clk_dout_mmc3,
&clk_dout_mmc4,
&clk_mout_mfc0,
&clk_mout_mfc1,
};
static int xtal_rate;

2
arch/arm/mach-exynos4/include/mach/map.h
View File

@ -108,6 +108,7 @@
#define EXYNOS4_PA_EHCI 0x12580000
#define EXYNOS4_PA_HSPHY 0x125B0000
#define EXYNOS4_PA_MFC 0x13400000
#define EXYNOS4_PA_UART 0x13800000
@ -155,6 +156,7 @@
#define S5P_PA_ONENAND_DMA EXYNOS4_PA_ONENAND_DMA
#define S5P_PA_SDRAM EXYNOS4_PA_SDRAM
#define S5P_PA_SROMC EXYNOS4_PA_SROMC
#define S5P_PA_MFC EXYNOS4_PA_MFC
#define S5P_PA_SYSCON EXYNOS4_PA_SYSCON
#define S5P_PA_TIMER EXYNOS4_PA_TIMER
#define S5P_PA_EHCI EXYNOS4_PA_EHCI

7
arch/arm/mach-s5pv210/clock.c
View File

@ -323,6 +323,12 @@ static struct clk init_clocks_off[] = {
.parent = &clk_hclk_dsys.clk,
.enable = s5pv210_clk_ip0_ctrl,
.ctrlbit = (1 << 26),
}, {
.name = "mfc",
.devname = "s5p-mfc",
.parent = &clk_pclk_psys.clk,
.enable = s5pv210_clk_ip0_ctrl,
.ctrlbit = (1 << 16),
}, {
.name = "otg",
.parent = &clk_hclk_psys.clk,
@ -914,6 +920,7 @@ static struct clksrc_clk clksrcs[] = {
}, {
.clk = {
.name = "sclk_mfc",
.devname = "s5p-mfc",
.enable = s5pv210_clk_ip0_ctrl,
.ctrlbit = (1 << 16),
},

3
arch/arm/mach-s5pv210/include/mach/map.h
View File

@ -59,6 +59,8 @@
#define S5PV210_PA_CFCON 0xE8200000
#define S5PV210_PA_MFC 0xF1700000
#define S5PV210_PA_HSMMC(x) (0xEB000000 + ((x) * 0x100000))
#define S5PV210_PA_HSOTG 0xEC000000
@ -107,6 +109,7 @@
#define S5P_PA_FIMC1 S5PV210_PA_FIMC1
#define S5P_PA_FIMC2 S5PV210_PA_FIMC2
#define S5P_PA_MIPI_CSIS0 S5PV210_PA_MIPI_CSIS
#define S5P_PA_MFC S5PV210_PA_MFC
#define S5P_PA_ONENAND S5PC110_PA_ONENAND
#define S5P_PA_ONENAND_DMA S5PC110_PA_ONENAND_DMA
#define S5P_PA_SDRAM S5PV210_PA_SDRAM

5
arch/arm/plat-s5p/Kconfig
View File

@ -76,6 +76,11 @@ config S5P_DEV_FIMD0
help
Compile in platform device definitions for FIMD controller 0
config S5P_DEV_MFC
bool
help
Compile in platform device definitions for MFC
config S5P_DEV_ONENAND
bool
help

2
arch/arm/plat-s5p/Makefile
View File

@ -25,7 +25,7 @@ obj-$(CONFIG_PM) += irq-pm.o
obj-$(CONFIG_S5P_HRT) += s5p-time.o
# devices
obj-$(CONFIG_S5P_DEV_MFC) += dev-mfc.o
obj-$(CONFIG_S5P_DEV_FIMC0) += dev-fimc0.o
obj-$(CONFIG_S5P_DEV_FIMC1) += dev-fimc1.o
obj-$(CONFIG_S5P_DEV_FIMC2) += dev-fimc2.o

123
arch/arm/plat-s5p/dev-mfc.c 100644
View File

@ -0,0 +1,123 @@
/* 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>
static struct resource s5p_mfc_resource[] = {
[0] = {
.start = S5P_PA_MFC,
.end = S5P_PA_MFC + SZ_64K - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = IRQ_MFC,
.end = IRQ_MFC,
.flags = IORESOURCE_IRQ,
}
};
struct platform_device s5p_device_mfc = {
.name = "s5p-mfc",
.id = -1,
.num_resources = ARRAY_SIZE(s5p_mfc_resource),
.resource = s5p_mfc_resource,
};
/*
* MFC hardware has 2 memory interfaces which are modelled as two separate
* platform devices to let dma-mapping distinguish between them.
*
* MFC parent device (s5p_device_mfc) must be registered before memory
* interface specific devices (s5p_device_mfc_l and s5p_device_mfc_r).
*/
static u64 s5p_mfc_dma_mask = DMA_BIT_MASK(32);
struct platform_device s5p_device_mfc_l = {
.name = "s5p-mfc-l",
.id = -1,
.dev = {
.parent = &s5p_device_mfc.dev,
.dma_mask = &s5p_mfc_dma_mask,
.coherent_dma_mask = DMA_BIT_MASK(32),
},
};
struct platform_device s5p_device_mfc_r = {
.name = "s5p-mfc-r",
.id = -1,
.dev = {
.parent = &s5p_device_mfc.dev,
.dma_mask = &s5p_mfc_dma_mask,
.coherent_dma_mask = DMA_BIT_MASK(32),
},
};
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);

27
arch/arm/plat-s5p/include/plat/mfc.h 100644
View File

@ -0,0 +1,27 @@
/*
* Copyright (C) 2011 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 __PLAT_S5P_MFC_H
#define __PLAT_S5P_MFC_H
/**
* s5p_mfc_reserve_mem - function to early reserve memory for MFC driver
* @rbase: base address for MFC 'right' memory interface
* @rsize: size of the memory reserved for MFC 'right' interface
* @lbase: base address for MFC 'left' memory interface
* @lsize: size of the memory reserved for MFC 'left' interface
*
* This function reserves system memory for both MFC device memory
* interfaces and registers it to respective struct device entries as
* coherent memory.
*/
void __init s5p_mfc_reserve_mem(phys_addr_t rbase, unsigned int rsize,
phys_addr_t lbase, unsigned int lsize);
#endif /* __PLAT_S5P_MFC_H */

3
arch/arm/plat-samsung/include/plat/devs.h
View File

@ -139,6 +139,9 @@ extern struct platform_device s5p_device_fimc1;
extern struct platform_device s5p_device_fimc2;
extern struct platform_device s5p_device_fimc3;
extern struct platform_device s5p_device_mfc;
extern struct platform_device s5p_device_mfc_l;
extern struct platform_device s5p_device_mfc_r;
extern struct platform_device s5p_device_mipi_csis0;
extern struct platform_device s5p_device_mipi_csis1;