1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
|
/*
* BCM47XX NAND flash driver
*
* Copyright (C) 2012 Rafał Miłecki <zajec5@gmail.com>
*
* 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 "bcm47xxnflash.h"
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/platform_device.h>
#include <linux/bcma/bcma.h>
MODULE_DESCRIPTION("NAND flash driver for BCMA bus");
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Rafał Miłecki");
static const char *probes[] = { "bcm47xxpart", NULL };
static int bcm47xxnflash_probe(struct platform_device *pdev)
{
struct bcma_nflash *nflash = dev_get_platdata(&pdev->dev);
struct bcm47xxnflash *b47n;
int err = 0;
b47n = devm_kzalloc(&pdev->dev, sizeof(*b47n), GFP_KERNEL);
if (!b47n)
return -ENOMEM;
b47n->nand_chip.priv = b47n;
b47n->mtd.dev.parent = &pdev->dev;
b47n->mtd.priv = &b47n->nand_chip; /* Required */
b47n->cc = container_of(nflash, struct bcma_drv_cc, nflash);
if (b47n->cc->core->bus->chipinfo.id == BCMA_CHIP_ID_BCM4706) {
err = bcm47xxnflash_ops_bcm4706_init(b47n);
} else {
pr_err("Device not supported\n");
err = -ENOTSUPP;
}
if (err) {
pr_err("Initialization failed: %d\n", err);
return err;
}
err = mtd_device_parse_register(&b47n->mtd, probes, NULL, NULL, 0);
if (err) {
pr_err("Failed to register MTD device: %d\n", err);
return err;
}
return 0;
}
static int bcm47xxnflash_remove(struct platform_device *pdev)
{
struct bcma_nflash *nflash = dev_get_platdata(&pdev->dev);
if (nflash->mtd)
mtd_device_unregister(nflash->mtd);
return 0;
}
static struct platform_driver bcm47xxnflash_driver = {
.probe = bcm47xxnflash_probe,
.remove = bcm47xxnflash_remove,
.driver = {
.name = "bcma_nflash",
},
};
module_platform_driver(bcm47xxnflash_driver);
|
