projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| a5401370 RM |
1 | /* |
| 2 | * BCM47XX NAND flash driver | |
| 3 | * | |
| 4 | * Copyright (C) 2012 Rafał Miłecki <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 | ||
| be0638d9 RM |
12 | #include "bcm47xxnflash.h" |
| 13 | ||
| a5401370 RM |
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 | ||
| a5401370 RM |
20 | MODULE_DESCRIPTION("NAND flash driver for BCMA bus"); |
| 21 | MODULE_LICENSE("GPL"); | |
| 22 | MODULE_AUTHOR("Rafał Miłecki"); | |
| 23 | ||
| 24 | static const char *probes[] = { "bcm47xxpart", NULL }; | |
| 25 | ||
| 26 | static int bcm47xxnflash_probe(struct platform_device *pdev) | |
| 27 | { | |
| 28 | struct bcma_nflash *nflash = dev_get_platdata(&pdev->dev); | |
| 29 | struct bcm47xxnflash *b47n; | |
| 17dd20bd | 30 | struct mtd_info *mtd; |
| a5401370 RM |
31 | int err = 0; |
| 32 | ||
| 7e3019e3 SK |
33 | b47n = devm_kzalloc(&pdev->dev, sizeof(*b47n), GFP_KERNEL); |
| 34 | if (!b47n) | |
| 35 | return -ENOMEM; | |
| a5401370 | 36 | |
| d699ed25 | 37 | nand_set_controller_data(&b47n->nand_chip, b47n); |
| 17dd20bd BB |
38 | mtd = nand_to_mtd(&b47n->nand_chip); |
| 39 | mtd->dev.parent = &pdev->dev; | |
| a5401370 RM |
40 | b47n->cc = container_of(nflash, struct bcma_drv_cc, nflash); |
| 41 | ||
| 00940a23 RM |
42 | if (b47n->cc->core->bus->chipinfo.id == BCMA_CHIP_ID_BCM4706) { |
| 43 | err = bcm47xxnflash_ops_bcm4706_init(b47n); | |
| a5401370 RM |
44 | } else { |
| 45 | pr_err("Device not supported\n"); | |
| 46 | err = -ENOTSUPP; | |
| 47 | } | |
| 48 | if (err) { | |
| 49 | pr_err("Initialization failed: %d\n", err); | |
| 7e3019e3 | 50 | return err; |
| a5401370 RM |
51 | } |
| 52 | ||
| 665d2c28 BN |
53 | platform_set_drvdata(pdev, b47n); |
| 54 | ||
| 17dd20bd | 55 | err = mtd_device_parse_register(mtd, probes, NULL, NULL, 0); |
| a5401370 RM |
56 | if (err) { |
| 57 | pr_err("Failed to register MTD device: %d\n", err); | |
| 7e3019e3 | 58 | return err; |
| a5401370 RM |
59 | } |
| 60 | ||
| 61 | return 0; | |
| a5401370 RM |
62 | } |
| 63 | ||
| d8929942 | 64 | static int bcm47xxnflash_remove(struct platform_device *pdev) |
| a5401370 | 65 | { |
| 665d2c28 | 66 | struct bcm47xxnflash *nflash = platform_get_drvdata(pdev); |
| a5401370 | 67 | |
| 17dd20bd | 68 | nand_release(nand_to_mtd(&nflash->nand_chip)); |
| a5401370 RM |
69 | |
| 70 | return 0; | |
| 71 | } | |
| 72 | ||
| 73 | static struct platform_driver bcm47xxnflash_driver = { | |
| a7bf6543 | 74 | .probe = bcm47xxnflash_probe, |
| d8929942 | 75 | .remove = bcm47xxnflash_remove, |
| a5401370 RM |
76 | .driver = { |
| 77 | .name = "bcma_nflash", | |
| a5401370 RM |
78 | }, |
| 79 | }; | |
| 80 | ||
| 994bbd0e | 81 | module_platform_driver(bcm47xxnflash_driver); |