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authorBoris Brezillon <boris.brezillon@bootlin.com>2018-02-05 23:02:04 +0100
committerBoris Brezillon <boris.brezillon@bootlin.com>2018-02-16 10:09:34 +0100
commit93db446a424cee9387b532995e6b516667079555 (patch)
tree39c7900ae38d890fb971ea5fc6f194f7e66fa797 /drivers/mtd/nand/plat_nand.c
parent7b6afee7291802aa8c02aa918782033992caf641 (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.c144
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");