diff options
Diffstat (limited to 'arch/arm/plat-s3c/dev-nand.c')
-rw-r--r-- | arch/arm/plat-s3c/dev-nand.c | 129 |
1 files changed, 0 insertions, 129 deletions
diff --git a/arch/arm/plat-s3c/dev-nand.c b/arch/arm/plat-s3c/dev-nand.c deleted file mode 100644 index a52fb6cf618f..000000000000 --- a/arch/arm/plat-s3c/dev-nand.c +++ /dev/null | |||
@@ -1,129 +0,0 @@ | |||
1 | /* | ||
2 | * S3C series device definition for nand device | ||
3 | * | ||
4 | * This program is free software; you can redistribute it and/or modify | ||
5 | * it under the terms of the GNU General Public License version 2 as | ||
6 | * published by the Free Software Foundation. | ||
7 | */ | ||
8 | |||
9 | #include <linux/kernel.h> | ||
10 | #include <linux/platform_device.h> | ||
11 | |||
12 | #include <linux/mtd/mtd.h> | ||
13 | #include <linux/mtd/partitions.h> | ||
14 | |||
15 | #include <mach/map.h> | ||
16 | #include <plat/devs.h> | ||
17 | #include <plat/nand.h> | ||
18 | |||
19 | static struct resource s3c_nand_resource[] = { | ||
20 | [0] = { | ||
21 | .start = S3C_PA_NAND, | ||
22 | .end = S3C_PA_NAND + SZ_1M, | ||
23 | .flags = IORESOURCE_MEM, | ||
24 | } | ||
25 | }; | ||
26 | |||
27 | struct platform_device s3c_device_nand = { | ||
28 | .name = "s3c2410-nand", | ||
29 | .id = -1, | ||
30 | .num_resources = ARRAY_SIZE(s3c_nand_resource), | ||
31 | .resource = s3c_nand_resource, | ||
32 | }; | ||
33 | |||
34 | EXPORT_SYMBOL(s3c_device_nand); | ||
35 | |||
36 | /** | ||
37 | * s3c_nand_copy_set() - copy nand set data | ||
38 | * @set: The new structure, directly copied from the old. | ||
39 | * | ||
40 | * Copy all the fields from the NAND set field from what is probably __initdata | ||
41 | * to new kernel memory. The code returns 0 if the copy happened correctly or | ||
42 | * an error code for the calling function to display. | ||
43 | * | ||
44 | * Note, we currently do not try and look to see if we've already copied the | ||
45 | * data in a previous set. | ||
46 | */ | ||
47 | static int __init s3c_nand_copy_set(struct s3c2410_nand_set *set) | ||
48 | { | ||
49 | void *ptr; | ||
50 | int size; | ||
51 | |||
52 | size = sizeof(struct mtd_partition) * set->nr_partitions; | ||
53 | if (size) { | ||
54 | ptr = kmemdup(set->partitions, size, GFP_KERNEL); | ||
55 | set->partitions = ptr; | ||
56 | |||
57 | if (!ptr) | ||
58 | return -ENOMEM; | ||
59 | } | ||
60 | |||
61 | if (set->nr_map && set->nr_chips) { | ||
62 | size = sizeof(int) * set->nr_chips; | ||
63 | ptr = kmemdup(set->nr_map, size, GFP_KERNEL); | ||
64 | set->nr_map = ptr; | ||
65 | |||
66 | if (!ptr) | ||
67 | return -ENOMEM; | ||
68 | } | ||
69 | |||
70 | if (set->ecc_layout) { | ||
71 | ptr = kmemdup(set->ecc_layout, | ||
72 | sizeof(struct nand_ecclayout), GFP_KERNEL); | ||
73 | set->ecc_layout = ptr; | ||
74 | |||
75 | if (!ptr) | ||
76 | return -ENOMEM; | ||
77 | } | ||
78 | |||
79 | return 0; | ||
80 | } | ||
81 | |||
82 | void __init s3c_nand_set_platdata(struct s3c2410_platform_nand *nand) | ||
83 | { | ||
84 | struct s3c2410_platform_nand *npd; | ||
85 | int size; | ||
86 | int ret; | ||
87 | |||
88 | /* note, if we get a failure in allocation, we simply drop out of the | ||
89 | * function. If there is so little memory available at initialisation | ||
90 | * time then there is little chance the system is going to run. | ||
91 | */ | ||
92 | |||
93 | npd = kmemdup(nand, sizeof(struct s3c2410_platform_nand), GFP_KERNEL); | ||
94 | if (!npd) { | ||
95 | printk(KERN_ERR "%s: failed copying platform data\n", __func__); | ||
96 | return; | ||
97 | } | ||
98 | |||
99 | /* now see if we need to copy any of the nand set data */ | ||
100 | |||
101 | size = sizeof(struct s3c2410_nand_set) * npd->nr_sets; | ||
102 | if (size) { | ||
103 | struct s3c2410_nand_set *from = npd->sets; | ||
104 | struct s3c2410_nand_set *to; | ||
105 | int i; | ||
106 | |||
107 | to = kmemdup(from, size, GFP_KERNEL); | ||
108 | npd->sets = to; /* set, even if we failed */ | ||
109 | |||
110 | if (!to) { | ||
111 | printk(KERN_ERR "%s: no memory for sets\n", __func__); | ||
112 | return; | ||
113 | } | ||
114 | |||
115 | for (i = 0; i < npd->nr_sets; i++) { | ||
116 | ret = s3c_nand_copy_set(to); | ||
117 | if (ret) { | ||
118 | printk(KERN_ERR "%s: failed to copy set %d\n", | ||
119 | __func__, i); | ||
120 | return; | ||
121 | } | ||
122 | to++; | ||
123 | } | ||
124 | } | ||
125 | |||
126 | s3c_device_nand.dev.platform_data = npd; | ||
127 | } | ||
128 | |||
129 | EXPORT_SYMBOL_GPL(s3c_nand_set_platdata); | ||