diff options
author | Boris Brezillon <boris.brezillon@bootlin.com> | 2018-02-05 23:02:04 +0100 |
---|---|---|
committer | Boris Brezillon <boris.brezillon@bootlin.com> | 2018-02-16 10:09:34 +0100 |
commit | 93db446a424cee9387b532995e6b516667079555 (patch) | |
tree | 39c7900ae38d890fb971ea5fc6f194f7e66fa797 /drivers/mtd/nand/plat_nand.c | |
parent | 7b6afee7291802aa8c02aa918782033992caf641 (diff) |
mtd: nand: move raw NAND related code to the raw/ subdir
As part of the process of sharing more code between different NAND
based devices, we need to move all raw NAND related code to the raw/
subdirectory.
Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Diffstat (limited to 'drivers/mtd/nand/plat_nand.c')
-rw-r--r-- | drivers/mtd/nand/plat_nand.c | 144 |
1 files changed, 0 insertions, 144 deletions
diff --git a/drivers/mtd/nand/plat_nand.c b/drivers/mtd/nand/plat_nand.c deleted file mode 100644 index 925a1323604d..000000000000 --- a/drivers/mtd/nand/plat_nand.c +++ /dev/null @@ -1,144 +0,0 @@ -/* - * Generic NAND driver - * - * Author: Vitaly Wool <vitalywool@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 <linux/err.h> -#include <linux/io.h> -#include <linux/module.h> -#include <linux/platform_device.h> -#include <linux/slab.h> -#include <linux/mtd/mtd.h> -#include <linux/mtd/rawnand.h> -#include <linux/mtd/partitions.h> - -struct plat_nand_data { - struct nand_chip chip; - void __iomem *io_base; -}; - -/* - * Probe for the NAND device. - */ -static int plat_nand_probe(struct platform_device *pdev) -{ - struct platform_nand_data *pdata = dev_get_platdata(&pdev->dev); - struct plat_nand_data *data; - struct mtd_info *mtd; - struct resource *res; - const char **part_types; - int err = 0; - - if (!pdata) { - dev_err(&pdev->dev, "platform_nand_data is missing\n"); - return -EINVAL; - } - - if (pdata->chip.nr_chips < 1) { - dev_err(&pdev->dev, "invalid number of chips specified\n"); - return -EINVAL; - } - - /* Allocate memory for the device structure (and zero it) */ - data = devm_kzalloc(&pdev->dev, sizeof(struct plat_nand_data), - GFP_KERNEL); - if (!data) - return -ENOMEM; - - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - data->io_base = devm_ioremap_resource(&pdev->dev, res); - if (IS_ERR(data->io_base)) - return PTR_ERR(data->io_base); - - nand_set_flash_node(&data->chip, pdev->dev.of_node); - mtd = nand_to_mtd(&data->chip); - mtd->dev.parent = &pdev->dev; - - data->chip.IO_ADDR_R = data->io_base; - data->chip.IO_ADDR_W = data->io_base; - data->chip.cmd_ctrl = pdata->ctrl.cmd_ctrl; - data->chip.dev_ready = pdata->ctrl.dev_ready; - data->chip.select_chip = pdata->ctrl.select_chip; - data->chip.write_buf = pdata->ctrl.write_buf; - data->chip.read_buf = pdata->ctrl.read_buf; - data->chip.read_byte = pdata->ctrl.read_byte; - data->chip.chip_delay = pdata->chip.chip_delay; - data->chip.options |= pdata->chip.options; - data->chip.bbt_options |= pdata->chip.bbt_options; - - data->chip.ecc.hwctl = pdata->ctrl.hwcontrol; - data->chip.ecc.mode = NAND_ECC_SOFT; - data->chip.ecc.algo = NAND_ECC_HAMMING; - - platform_set_drvdata(pdev, data); - - /* Handle any platform specific setup */ - if (pdata->ctrl.probe) { - err = pdata->ctrl.probe(pdev); - if (err) - goto out; - } - - /* Scan to find existence of the device */ - err = nand_scan(mtd, pdata->chip.nr_chips); - if (err) - goto out; - - part_types = pdata->chip.part_probe_types; - - err = mtd_device_parse_register(mtd, part_types, NULL, - pdata->chip.partitions, - pdata->chip.nr_partitions); - - if (!err) - return err; - - nand_release(mtd); -out: - if (pdata->ctrl.remove) - pdata->ctrl.remove(pdev); - return err; -} - -/* - * Remove a NAND device. - */ -static int plat_nand_remove(struct platform_device *pdev) -{ - struct plat_nand_data *data = platform_get_drvdata(pdev); - struct platform_nand_data *pdata = dev_get_platdata(&pdev->dev); - - nand_release(nand_to_mtd(&data->chip)); - if (pdata->ctrl.remove) - pdata->ctrl.remove(pdev); - - return 0; -} - -static const struct of_device_id plat_nand_match[] = { - { .compatible = "gen_nand" }, - {}, -}; -MODULE_DEVICE_TABLE(of, plat_nand_match); - -static struct platform_driver plat_nand_driver = { - .probe = plat_nand_probe, - .remove = plat_nand_remove, - .driver = { - .name = "gen_nand", - .of_match_table = plat_nand_match, - }, -}; - -module_platform_driver(plat_nand_driver); - -MODULE_LICENSE("GPL"); -MODULE_AUTHOR("Vitaly Wool"); -MODULE_DESCRIPTION("Simple generic NAND driver"); -MODULE_ALIAS("platform:gen_nand"); |