2eae613b95
This patch adds device tree entry for MFC v6 in the Exynos5 SoC. Makes the required changes in the clock files and adds MFC to the DT device list. Signed-off-by: Naveen Krishna Chatradhi <ch.naveen@samsung.com> Signed-off-by: Arun Kumar K <arun.kk@samsung.com> [kgene.kim@samsung.com: fixed section mismatches Seung-Woo Kim reported] Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
106 lines
2.6 KiB
C
106 lines
2.6 KiB
C
/*
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* Copyright (C) 2010-2011 Samsung Electronics Co.Ltd
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*
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* Base S5P MFC resource and device definitions
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include <linux/kernel.h>
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#include <linux/interrupt.h>
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#include <linux/platform_device.h>
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#include <linux/dma-mapping.h>
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#include <linux/memblock.h>
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#include <linux/ioport.h>
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#include <linux/of_fdt.h>
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#include <linux/of.h>
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#include <mach/map.h>
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#include <plat/devs.h>
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#include <plat/irqs.h>
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#include <plat/mfc.h>
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struct s5p_mfc_reserved_mem {
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phys_addr_t base;
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unsigned long size;
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struct device *dev;
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};
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static struct s5p_mfc_reserved_mem s5p_mfc_mem[2] __initdata;
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void __init s5p_mfc_reserve_mem(phys_addr_t rbase, unsigned int rsize,
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phys_addr_t lbase, unsigned int lsize)
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{
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int i;
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s5p_mfc_mem[0].dev = &s5p_device_mfc_r.dev;
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s5p_mfc_mem[0].base = rbase;
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s5p_mfc_mem[0].size = rsize;
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s5p_mfc_mem[1].dev = &s5p_device_mfc_l.dev;
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s5p_mfc_mem[1].base = lbase;
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s5p_mfc_mem[1].size = lsize;
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for (i = 0; i < ARRAY_SIZE(s5p_mfc_mem); i++) {
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struct s5p_mfc_reserved_mem *area = &s5p_mfc_mem[i];
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if (memblock_remove(area->base, area->size)) {
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printk(KERN_ERR "Failed to reserve memory for MFC device (%ld bytes at 0x%08lx)\n",
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area->size, (unsigned long) area->base);
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area->base = 0;
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}
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}
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}
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static int __init s5p_mfc_memory_init(void)
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{
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int i;
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for (i = 0; i < ARRAY_SIZE(s5p_mfc_mem); i++) {
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struct s5p_mfc_reserved_mem *area = &s5p_mfc_mem[i];
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if (!area->base)
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continue;
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if (dma_declare_coherent_memory(area->dev, area->base,
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area->base, area->size,
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DMA_MEMORY_MAP | DMA_MEMORY_EXCLUSIVE) == 0)
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printk(KERN_ERR "Failed to declare coherent memory for MFC device (%ld bytes at 0x%08lx)\n",
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area->size, (unsigned long) area->base);
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}
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return 0;
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}
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device_initcall(s5p_mfc_memory_init);
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#ifdef CONFIG_OF
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int __init s5p_fdt_find_mfc_mem(unsigned long node, const char *uname,
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int depth, void *data)
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{
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__be32 *prop;
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unsigned long len;
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struct s5p_mfc_dt_meminfo *mfc_mem = data;
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if (!data)
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return 0;
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if (!of_flat_dt_is_compatible(node, mfc_mem->compatible))
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return 0;
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prop = of_get_flat_dt_prop(node, "samsung,mfc-l", &len);
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if (!prop || (len != 2 * sizeof(unsigned long)))
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return 0;
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mfc_mem->loff = be32_to_cpu(prop[0]);
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mfc_mem->lsize = be32_to_cpu(prop[1]);
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prop = of_get_flat_dt_prop(node, "samsung,mfc-r", &len);
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if (!prop || (len != 2 * sizeof(unsigned long)))
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return 0;
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mfc_mem->roff = be32_to_cpu(prop[0]);
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mfc_mem->rsize = be32_to_cpu(prop[1]);
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return 1;
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}
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#endif
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