diff options
author | Kukjin Kim <kgene@kernel.org> | 2015-07-29 18:48:17 +0200 |
---|---|---|
committer | Kukjin Kim <kgene@kernel.org> | 2015-07-29 18:49:00 +0200 |
commit | b93b315d444faa1505b6a5e001c30f3024849e46 (patch) | |
tree | 5efba5339bc43618284e2d733d95acd4caa071e1 /arch/arm/mach-exynos | |
parent | ARM: SAMSUNG: make local dev-backlight in mach-s3c64xx (diff) | |
download | linux-b93b315d444faa1505b6a5e001c30f3024849e46.tar.xz linux-b93b315d444faa1505b6a5e001c30f3024849e46.zip |
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>
Diffstat (limited to 'arch/arm/mach-exynos')
-rw-r--r-- | arch/arm/mach-exynos/Kconfig | 5 | ||||
-rw-r--r-- | arch/arm/mach-exynos/Makefile | 2 | ||||
-rw-r--r-- | arch/arm/mach-exynos/s5p-dev-mfc.c | 94 |
3 files changed, 101 insertions, 0 deletions
diff --git a/arch/arm/mach-exynos/Kconfig b/arch/arm/mach-exynos/Kconfig index 81064cd61a0a..4c4858c566d8 100644 --- a/arch/arm/mach-exynos/Kconfig +++ b/arch/arm/mach-exynos/Kconfig @@ -30,6 +30,11 @@ menuconfig ARCH_EXYNOS if ARCH_EXYNOS +config S5P_DEV_MFC + bool + help + Compile in setup memory (init) code for MFC + config ARCH_EXYNOS3 bool "SAMSUNG EXYNOS3" select ARM_CPU_SUSPEND if PM diff --git a/arch/arm/mach-exynos/Makefile b/arch/arm/mach-exynos/Makefile index bcefb5473ee4..2f306767cdfe 100644 --- a/arch/arm/mach-exynos/Makefile +++ b/arch/arm/mach-exynos/Makefile @@ -23,3 +23,5 @@ 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 diff --git a/arch/arm/mach-exynos/s5p-dev-mfc.c b/arch/arm/mach-exynos/s5p-dev-mfc.c new file mode 100644 index 000000000000..0b04b6b0fa30 --- /dev/null +++ b/arch/arm/mach-exynos/s5p-dev-mfc.c @@ -0,0 +1,94 @@ +/* + * 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; +} |