From 871480933a1c28f8a9fed4c4d34d06c439a7a422 Mon Sep 17 00:00:00 2001 From: Srikant Patnaik Date: Sun, 11 Jan 2015 12:28:04 +0530 Subject: Moved, renamed, and deleted files The original directory structure was scattered and unorganized. Changes are basically to make it look like kernel structure. --- arch/arm/plat-s5p/dev-mfc.c | 73 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 73 insertions(+) create mode 100644 arch/arm/plat-s5p/dev-mfc.c (limited to 'arch/arm/plat-s5p/dev-mfc.c') diff --git a/arch/arm/plat-s5p/dev-mfc.c b/arch/arm/plat-s5p/dev-mfc.c new file mode 100644 index 00000000..a30d36b7 --- /dev/null +++ b/arch/arm/plat-s5p/dev-mfc.c @@ -0,0 +1,73 @@ +/* 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 +#include +#include +#include +#include +#include + +#include +#include +#include +#include + +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); -- cgit