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, 239 insertions, 0 deletions

diff --git a/drivers/mtd/nand/autcpu12.c b/drivers/mtd/nand/autcpu12.c
new file mode 100644
index 00000000..2e42ec2e
--- /dev/null
+++ b/drivers/mtd/nand/autcpu12.c
@@ -0,0 +1,239 @@
+/*
+ *  drivers/mtd/autcpu12.c
+ *
+ *  Copyright (c) 2002 Thomas Gleixner <tgxl@linutronix.de>
+ *
+ *  Derived from drivers/mtd/spia.c
+ *	 Copyright (C) 2000 Steven J. Hill (sjhill@realitydiluted.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.
+ *
+ *  Overview:
+ *   This is a device driver for the NAND flash device found on the
+ *   autronix autcpu12 board, which is a SmartMediaCard. It supports
+ *   16MiB, 32MiB and 64MiB cards.
+ *
+ *
+ *	02-12-2002 TG	Cleanup of module params
+ *
+ *	02-20-2002 TG	adjusted for different rd/wr address support
+ *			added support for read device ready/busy line
+ *			added page_cache
+ *
+ *	10-06-2002 TG	128K card support added
+ */
+
+#include <linux/slab.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/nand.h>
+#include <linux/mtd/partitions.h>
+#include <asm/io.h>
+#include <mach/hardware.h>
+#include <asm/sizes.h>
+#include <mach/autcpu12.h>
+
+/*
+ * MTD structure for AUTCPU12 board
+ */
+static struct mtd_info *autcpu12_mtd = NULL;
+static void __iomem *autcpu12_fio_base;
+
+/*
+ * Define partitions for flash devices
+ */
+static struct mtd_partition partition_info16k[] = {
+	{ .name		= "AUTCPU12 flash partition 1",
+	  .offset	= 0,
+	  .size		= 8 * SZ_1M },
+	{ .name		= "AUTCPU12 flash partition 2",
+	  .offset	= 8 * SZ_1M,
+	  .size		= 8 * SZ_1M },
+};
+
+static struct mtd_partition partition_info32k[] = {
+	{ .name		= "AUTCPU12 flash partition 1",
+	  .offset	= 0,
+	  .size		= 8 * SZ_1M },
+	{ .name		= "AUTCPU12 flash partition 2",
+	  .offset	= 8 * SZ_1M,
+	  .size		= 24 * SZ_1M },
+};
+
+static struct mtd_partition partition_info64k[] = {
+	{ .name		= "AUTCPU12 flash partition 1",
+	  .offset	= 0,
+	  .size		= 16 * SZ_1M },
+	{ .name		= "AUTCPU12 flash partition 2",
+	  .offset	= 16 * SZ_1M,
+	  .size		= 48 * SZ_1M },
+};
+
+static struct mtd_partition partition_info128k[] = {
+	{ .name		= "AUTCPU12 flash partition 1",
+	  .offset	= 0,
+	  .size		= 16 * SZ_1M },
+	{ .name		= "AUTCPU12 flash partition 2",
+	  .offset	= 16 * SZ_1M,
+	  .size		= 112 * SZ_1M },
+};
+
+#define NUM_PARTITIONS16K 2
+#define NUM_PARTITIONS32K 2
+#define NUM_PARTITIONS64K 2
+#define NUM_PARTITIONS128K 2
+/*
+ *	hardware specific access to control-lines
+ *
+ *	ALE bit 4 autcpu12_pedr
+ *	CLE bit 5 autcpu12_pedr
+ *	NCE bit 0 fio_ctrl
+ *
+ */
+static void autcpu12_hwcontrol(struct mtd_info *mtd, int cmd,
+			       unsigned int ctrl)
+{
+	struct nand_chip *chip = mtd->priv;
+
+	if (ctrl & NAND_CTRL_CHANGE) {
+		void __iomem *addr;
+		unsigned char bits;
+
+		addr = CS89712_VIRT_BASE + AUTCPU12_SMC_PORT_OFFSET;
+		bits = (ctrl & NAND_CLE) << 4;
+		bits |= (ctrl & NAND_ALE) << 2;
+		writeb((readb(addr) & ~0x30) | bits, addr);
+
+		addr = autcpu12_fio_base + AUTCPU12_SMC_SELECT_OFFSET;
+		writeb((readb(addr) & ~0x1) | (ctrl & NAND_NCE), addr);
+	}
+
+	if (cmd != NAND_CMD_NONE)
+		writeb(cmd, chip->IO_ADDR_W);
+}
+
+/*
+ *	read device ready pin
+ */
+int autcpu12_device_ready(struct mtd_info *mtd)
+{
+	void __iomem *addr = CS89712_VIRT_BASE + AUTCPU12_SMC_PORT_OFFSET;
+
+	return readb(addr) & AUTCPU12_SMC_RDY;
+}
+
+/*
+ * Main initialization routine
+ */
+static int __init autcpu12_init(void)
+{
+	struct nand_chip *this;
+	int err = 0;
+
+	/* Allocate memory for MTD device structure and private data */
+	autcpu12_mtd = kmalloc(sizeof(struct mtd_info) + sizeof(struct nand_chip),
+			       GFP_KERNEL);
+	if (!autcpu12_mtd) {
+		printk("Unable to allocate AUTCPU12 NAND MTD device structure.\n");
+		err = -ENOMEM;
+		goto out;
+	}
+
+	/* map physical address */
+	autcpu12_fio_base = ioremap(AUTCPU12_PHYS_SMC, SZ_1K);
+	if (!autcpu12_fio_base) {
+		printk("Ioremap autcpu12 SmartMedia Card failed\n");
+		err = -EIO;
+		goto out_mtd;
+	}
+
+	/* Get pointer to private data */
+	this = (struct nand_chip *)(&autcpu12_mtd[1]);
+
+	/* Initialize structures */
+	memset(autcpu12_mtd, 0, sizeof(struct mtd_info));
+	memset(this, 0, sizeof(struct nand_chip));
+
+	/* Link the private data with the MTD structure */
+	autcpu12_mtd->priv = this;
+	autcpu12_mtd->owner = THIS_MODULE;
+
+	/* Set address of NAND IO lines */
+	this->IO_ADDR_R = autcpu12_fio_base;
+	this->IO_ADDR_W = autcpu12_fio_base;
+	this->cmd_ctrl = autcpu12_hwcontrol;
+	this->dev_ready = autcpu12_device_ready;
+	/* 20 us command delay time */
+	this->chip_delay = 20;
+	this->ecc.mode = NAND_ECC_SOFT;
+
+	/* Enable the following for a flash based bad block table */
+	/*
+	   this->bbt_options = NAND_BBT_USE_FLASH;
+	 */
+	this->bbt_options = NAND_BBT_USE_FLASH;
+
+	/* Scan to find existence of the device */
+	if (nand_scan(autcpu12_mtd, 1)) {
+		err = -ENXIO;
+		goto out_ior;
+	}
+
+	/* Register the partitions */
+	switch (autcpu12_mtd->size) {
+		case SZ_16M:
+			mtd_device_register(autcpu12_mtd, partition_info16k,
+					    NUM_PARTITIONS16K);
+			break;
+		case SZ_32M:
+			mtd_device_register(autcpu12_mtd, partition_info32k,
+					    NUM_PARTITIONS32K);
+			break;
+		case SZ_64M:
+			mtd_device_register(autcpu12_mtd, partition_info64k,
+					    NUM_PARTITIONS64K);
+			break;
+		case SZ_128M:
+			mtd_device_register(autcpu12_mtd, partition_info128k,
+					    NUM_PARTITIONS128K);
+			break;
+		default:
+			printk("Unsupported SmartMedia device\n");
+			err = -ENXIO;
+			goto out_ior;
+	}
+	goto out;
+
+ out_ior:
+	iounmap(autcpu12_fio_base);
+ out_mtd:
+	kfree(autcpu12_mtd);
+ out:
+	return err;
+}
+
+module_init(autcpu12_init);
+
+/*
+ * Clean up routine
+ */
+static void __exit autcpu12_cleanup(void)
+{
+	/* Release resources, unregister device */
+	nand_release(autcpu12_mtd);
+
+	/* unmap physical address */
+	iounmap(autcpu12_fio_base);
+
+	/* Free the MTD device structure */
+	kfree(autcpu12_mtd);
+}
+
+module_exit(autcpu12_cleanup);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Thomas Gleixner <tglx@linutronix.de>");
+MODULE_DESCRIPTION("Glue layer for SmartMediaCard on autronix autcpu12");