1/*
2 * BCM47XX NAND flash driver
3 *
4 * Copyright (C) 2012 Rafa�� Mi��ecki <zajec5@gmail.com>
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 */
11
12#include "bcm47xxnflash.h"
13
14#include <linux/module.h>
15#include <linux/kernel.h>
16#include <linux/slab.h>
17#include <linux/platform_device.h>
18#include <linux/bcma/bcma.h>
19
20MODULE_DESCRIPTION("NAND flash driver for BCMA bus");
21MODULE_LICENSE("GPL");
22MODULE_AUTHOR("Rafa�� Mi��ecki");
23
24static const char *probes[] = { "bcm47xxpart", NULL };
25
26static int bcm47xxnflash_probe(struct platform_device *pdev)
27{
28	struct bcma_nflash *nflash = dev_get_platdata(&pdev->dev);
29	struct bcm47xxnflash *b47n;
30	int err = 0;
31
32	b47n = devm_kzalloc(&pdev->dev, sizeof(*b47n), GFP_KERNEL);
33	if (!b47n)
34		return -ENOMEM;
35
36	b47n->nand_chip.priv = b47n;
37	b47n->mtd.dev.parent = &pdev->dev;
38	b47n->mtd.priv = &b47n->nand_chip; /* Required */
39	b47n->cc = container_of(nflash, struct bcma_drv_cc, nflash);
40
41	if (b47n->cc->core->bus->chipinfo.id == BCMA_CHIP_ID_BCM4706) {
42		err = bcm47xxnflash_ops_bcm4706_init(b47n);
43	} else {
44		pr_err("Device not supported\n");
45		err = -ENOTSUPP;
46	}
47	if (err) {
48		pr_err("Initialization failed: %d\n", err);
49		return err;
50	}
51
52	err = mtd_device_parse_register(&b47n->mtd, probes, NULL, NULL, 0);
53	if (err) {
54		pr_err("Failed to register MTD device: %d\n", err);
55		return err;
56	}
57
58	return 0;
59}
60
61static int bcm47xxnflash_remove(struct platform_device *pdev)
62{
63	struct bcma_nflash *nflash = dev_get_platdata(&pdev->dev);
64
65	if (nflash->mtd)
66		mtd_device_unregister(nflash->mtd);
67
68	return 0;
69}
70
71static struct platform_driver bcm47xxnflash_driver = {
72	.probe	= bcm47xxnflash_probe,
73	.remove = bcm47xxnflash_remove,
74	.driver = {
75		.name = "bcma_nflash",
76	},
77};
78
79module_platform_driver(bcm47xxnflash_driver);
80