Moved, renamed, and deleted files

The original directory structure was scattered and unorganized.
Changes are basically to make it look like kernel structure.

1 files changed, 157 insertions, 0 deletions

diff --git a/drivers/mtd/nand/plat_nand.c b/drivers/mtd/nand/plat_nand.c
new file mode 100644
index 00000000..6404e6e8
--- /dev/null
+++ b/drivers/mtd/nand/plat_nand.c
@@ -0,0 +1,157 @@
+/*
+ * 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/io.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/nand.h>
+#include <linux/mtd/partitions.h>
+
+struct plat_nand_data {
+	struct nand_chip	chip;
+	struct mtd_info		mtd;
+	void __iomem		*io_base;
+};
+
+/*
+ * Probe for the NAND device.
+ */
+static int __devinit plat_nand_probe(struct platform_device *pdev)
+{
+	struct platform_nand_data *pdata = pdev->dev.platform_data;
+	struct plat_nand_data *data;
+	struct resource *res;
+	int err = 0;
+
+	if (pdata->chip.nr_chips < 1) {
+		dev_err(&pdev->dev, "invalid number of chips specified\n");
+		return -EINVAL;
+	}
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (!res)
+		return -ENXIO;
+
+	/* Allocate memory for the device structure (and zero it) */
+	data = kzalloc(sizeof(struct plat_nand_data), GFP_KERNEL);
+	if (!data) {
+		dev_err(&pdev->dev, "failed to allocate device structure.\n");
+		return -ENOMEM;
+	}
+
+	if (!request_mem_region(res->start, resource_size(res),
+				dev_name(&pdev->dev))) {
+		dev_err(&pdev->dev, "request_mem_region failed\n");
+		err = -EBUSY;
+		goto out_free;
+	}
+
+	data->io_base = ioremap(res->start, resource_size(res));
+	if (data->io_base == NULL) {
+		dev_err(&pdev->dev, "ioremap failed\n");
+		err = -EIO;
+		goto out_release_io;
+	}
+
+	data->chip.priv = &data;
+	data->mtd.priv = &data->chip;
+	data->mtd.owner = THIS_MODULE;
+	data->mtd.name = dev_name(&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.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.layout = pdata->chip.ecclayout;
+	data->chip.ecc.mode = NAND_ECC_SOFT;
+
+	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 */
+	if (nand_scan(&data->mtd, pdata->chip.nr_chips)) {
+		err = -ENXIO;
+		goto out;
+	}
+
+	err = mtd_device_parse_register(&data->mtd,
+					pdata->chip.part_probe_types, NULL,
+					pdata->chip.partitions,
+					pdata->chip.nr_partitions);
+
+	if (!err)
+		return err;
+
+	nand_release(&data->mtd);
+out:
+	if (pdata->ctrl.remove)
+		pdata->ctrl.remove(pdev);
+	platform_set_drvdata(pdev, NULL);
+	iounmap(data->io_base);
+out_release_io:
+	release_mem_region(res->start, resource_size(res));
+out_free:
+	kfree(data);
+	return err;
+}
+
+/*
+ * Remove a NAND device.
+ */
+static int __devexit plat_nand_remove(struct platform_device *pdev)
+{
+	struct plat_nand_data *data = platform_get_drvdata(pdev);
+	struct platform_nand_data *pdata = pdev->dev.platform_data;
+	struct resource *res;
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+
+	nand_release(&data->mtd);
+	if (pdata->ctrl.remove)
+		pdata->ctrl.remove(pdev);
+	iounmap(data->io_base);
+	release_mem_region(res->start, resource_size(res));
+	kfree(data);
+
+	return 0;
+}
+
+static struct platform_driver plat_nand_driver = {
+	.probe		= plat_nand_probe,
+	.remove		= __devexit_p(plat_nand_remove),
+	.driver		= {
+		.name	= "gen_nand",
+		.owner	= THIS_MODULE,
+	},
+};
+
+module_platform_driver(plat_nand_driver);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Vitaly Wool");
+MODULE_DESCRIPTION("Simple generic NAND driver");
+MODULE_ALIAS("platform:gen_nand");