projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| d9c452f4 | 1 | /* |
| 0f75a96b KD |
2 | * Copyright (C) 2010-2011 Samsung Electronics Co.Ltd |
| 3 | * | |
| 4 | * Base S5P MFC resource and device definitions | |
| 5 | * | |
| 6 | * This program is free software; you can redistribute it and/or modify | |
| 7 | * it under the terms of the GNU General Public License version 2 as | |
| 8 | * published by the Free Software Foundation. | |
| 9 | */ | |
| 10 | ||
| 0f75a96b KD |
11 | #include <linux/kernel.h> |
| 12 | #include <linux/interrupt.h> | |
| 13 | #include <linux/platform_device.h> | |
| 14 | #include <linux/dma-mapping.h> | |
| 15 | #include <linux/memblock.h> | |
| 16 | #include <linux/ioport.h> | |
| 2eae613b AK |
17 | #include <linux/of_fdt.h> |
| 18 | #include <linux/of.h> | |
| 0f75a96b | 19 | |
| 07fbe13d TF |
20 | static struct platform_device s5p_device_mfc_l; |
| 21 | static struct platform_device s5p_device_mfc_r; | |
| d78c16cc TF |
22 | |
| 23 | struct s5p_mfc_dt_meminfo { | |
| 24 | unsigned long loff; | |
| 25 | unsigned long lsize; | |
| 26 | unsigned long roff; | |
| 27 | unsigned long rsize; | |
| 28 | char *compatible; | |
| 29 | }; | |
| f76da510 | 30 | |
| 0f75a96b KD |
31 | struct s5p_mfc_reserved_mem { |
| 32 | phys_addr_t base; | |
| 33 | unsigned long size; | |
| 34 | struct device *dev; | |
| 35 | }; | |
| 36 | ||
| 37 | static struct s5p_mfc_reserved_mem s5p_mfc_mem[2] __initdata; | |
| 38 | ||
| 07fbe13d | 39 | |
| d78c16cc | 40 | static void __init s5p_mfc_reserve_mem(phys_addr_t rbase, unsigned int rsize, |
| 0f75a96b KD |
41 | phys_addr_t lbase, unsigned int lsize) |
| 42 | { | |
| 43 | int i; | |
| 44 | ||
| 45 | s5p_mfc_mem[0].dev = &s5p_device_mfc_r.dev; | |
| 46 | s5p_mfc_mem[0].base = rbase; | |
| 47 | s5p_mfc_mem[0].size = rsize; | |
| 48 | ||
| 49 | s5p_mfc_mem[1].dev = &s5p_device_mfc_l.dev; | |
| 50 | s5p_mfc_mem[1].base = lbase; | |
| 51 | s5p_mfc_mem[1].size = lsize; | |
| 52 | ||
| 53 | for (i = 0; i < ARRAY_SIZE(s5p_mfc_mem); i++) { | |
| 54 | struct s5p_mfc_reserved_mem *area = &s5p_mfc_mem[i]; | |
| 55 | if (memblock_remove(area->base, area->size)) { | |
| 56 | printk(KERN_ERR "Failed to reserve memory for MFC device (%ld bytes at 0x%08lx)\n", | |
| 57 | area->size, (unsigned long) area->base); | |
| 58 | area->base = 0; | |
| 59 | } | |
| 60 | } | |
| 61 | } | |
| 62 | ||
| 8b3e8bbd | 63 | int __init s5p_fdt_alloc_mfc_mem(unsigned long node, const char *uname, |
| 2eae613b AK |
64 | int depth, void *data) |
| 65 | { | |
| 9d0c4dfe RH |
66 | const __be32 *prop; |
| 67 | int len; | |
| 8b3e8bbd | 68 | struct s5p_mfc_dt_meminfo mfc_mem; |
| 2eae613b AK |
69 | |
| 70 | if (!data) | |
| 71 | return 0; | |
| 72 | ||
| 8b3e8bbd | 73 | if (!of_flat_dt_is_compatible(node, data)) |
| 2eae613b AK |
74 | return 0; |
| 75 | ||
| 76 | prop = of_get_flat_dt_prop(node, "samsung,mfc-l", &len); | |
| 77 | if (!prop || (len != 2 * sizeof(unsigned long))) | |
| 78 | return 0; | |
| 79 | ||
| 8b3e8bbd TB |
80 | mfc_mem.loff = be32_to_cpu(prop[0]); |
| 81 | mfc_mem.lsize = be32_to_cpu(prop[1]); | |
| 2eae613b AK |
82 | |
| 83 | prop = of_get_flat_dt_prop(node, "samsung,mfc-r", &len); | |
| 84 | if (!prop || (len != 2 * sizeof(unsigned long))) | |
| 85 | return 0; | |
| 86 | ||
| 8b3e8bbd TB |
87 | mfc_mem.roff = be32_to_cpu(prop[0]); |
| 88 | mfc_mem.rsize = be32_to_cpu(prop[1]); | |
| 89 | ||
| 90 | s5p_mfc_reserve_mem(mfc_mem.roff, mfc_mem.rsize, | |
| 91 | mfc_mem.loff, mfc_mem.lsize); | |
| 2eae613b AK |
92 | |
| 93 | return 1; | |
| 94 | } |