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81 lines
1.8 KiB
81 lines
1.8 KiB
// SPDX-License-Identifier: GPL-2.0-only |
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/* |
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* BCM47XX NAND flash driver |
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* |
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* Copyright (C) 2012 Rafał Miłecki <[email protected]> |
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*/ |
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#include "bcm47xxnflash.h" |
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#include <linux/module.h> |
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#include <linux/kernel.h> |
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#include <linux/slab.h> |
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#include <linux/platform_device.h> |
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#include <linux/bcma/bcma.h> |
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MODULE_DESCRIPTION("NAND flash driver for BCMA bus"); |
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MODULE_LICENSE("GPL"); |
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MODULE_AUTHOR("Rafał Miłecki"); |
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static const char *probes[] = { "bcm47xxpart", NULL }; |
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static int bcm47xxnflash_probe(struct platform_device *pdev) |
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{ |
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struct bcma_nflash *nflash = dev_get_platdata(&pdev->dev); |
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struct bcm47xxnflash *b47n; |
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struct mtd_info *mtd; |
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int err = 0; |
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b47n = devm_kzalloc(&pdev->dev, sizeof(*b47n), GFP_KERNEL); |
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if (!b47n) |
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return -ENOMEM; |
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nand_set_controller_data(&b47n->nand_chip, b47n); |
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mtd = nand_to_mtd(&b47n->nand_chip); |
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mtd->dev.parent = &pdev->dev; |
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b47n->cc = container_of(nflash, struct bcma_drv_cc, nflash); |
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if (b47n->cc->core->bus->chipinfo.id == BCMA_CHIP_ID_BCM4706) { |
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err = bcm47xxnflash_ops_bcm4706_init(b47n); |
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} else { |
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pr_err("Device not supported\n"); |
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err = -ENOTSUPP; |
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} |
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if (err) { |
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pr_err("Initialization failed: %d\n", err); |
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return err; |
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} |
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platform_set_drvdata(pdev, b47n); |
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err = mtd_device_parse_register(mtd, probes, NULL, NULL, 0); |
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if (err) { |
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pr_err("Failed to register MTD device: %d\n", err); |
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return err; |
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} |
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return 0; |
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} |
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static int bcm47xxnflash_remove(struct platform_device *pdev) |
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{ |
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struct bcm47xxnflash *nflash = platform_get_drvdata(pdev); |
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struct nand_chip *chip = &nflash->nand_chip; |
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int ret; |
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ret = mtd_device_unregister(nand_to_mtd(chip)); |
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WARN_ON(ret); |
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nand_cleanup(chip); |
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return 0; |
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} |
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static struct platform_driver bcm47xxnflash_driver = { |
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.probe = bcm47xxnflash_probe, |
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.remove = bcm47xxnflash_remove, |
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.driver = { |
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.name = "bcma_nflash", |
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}, |
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}; |
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module_platform_driver(bcm47xxnflash_driver);
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