[MTD] NAND: Remove unmaintained tx49xx board drivers

The drivers are unmaintained since long and reference include files
which are not available in the kernel. Original author is not longer
responsible and no new maintainer showed up within 3 month.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

1 files changed, 0 insertions, 416 deletions

diff --git a/drivers/mtd/nand/tx4925ndfmc.c b/drivers/mtd/nand/tx4925ndfmc.c
deleted file mode 100644
index bba688830c9..00000000000
--- a/drivers/mtd/nand/tx4925ndfmc.c
+++ /dev/null
@@ -1,416 +0,0 @@
-/*
- *  drivers/mtd/tx4925ndfmc.c
- *
- *  Overview:
- *   This is a device driver for the NAND flash device found on the
- *   Toshiba RBTX4925 reference board, which is a SmartMediaCard. It supports 
- *   16MiB, 32MiB and 64MiB cards.
- *
- * Author: MontaVista Software, Inc.  source@mvista.com
- *
- * Derived from drivers/mtd/autcpu12.c
- *       Copyright (c) 2001 Thomas Gleixner (gleixner@autronix.de)
- *
- * $Id: tx4925ndfmc.c,v 1.5 2004/10/05 13:50:20 gleixner Exp $
- *
- * Copyright (C) 2001 Toshiba Corporation 
- * 
- * 2003 (c) MontaVista Software, Inc. This file is licensed under
- * the terms of the GNU General Public License version 2. This program
- * is licensed "as is" without any warranty of any kind, whether express
- * or implied.
- *
- */
-
-#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 <linux/delay.h>
-#include <asm/io.h>
-#include <asm/tx4925/tx4925_nand.h>
-
-extern struct nand_oobinfo jffs2_oobinfo;
-
-/*
- * MTD structure for RBTX4925 board
- */
-static struct mtd_info *tx4925ndfmc_mtd = NULL;
-
-/*
- * Define partitions for flash devices
- */
-
-static struct mtd_partition partition_info16k[] = {
-	{ .name = "RBTX4925 flash partition 1",
-	  .offset =  0,
-	  .size =    8 * 0x00100000 },
-	{ .name = "RBTX4925 flash partition 2",
-	  .offset =  8 * 0x00100000,
-	  .size =    8 * 0x00100000 },
-};
-
-static struct mtd_partition partition_info32k[] = {
-	{ .name = "RBTX4925 flash partition 1",
-	  .offset =  0,
-	  .size =    8 * 0x00100000 },
-	{ .name = "RBTX4925 flash partition 2",
-	  .offset = 8 * 0x00100000,
-	  .size =  24 * 0x00100000 },
-};
-
-static struct mtd_partition partition_info64k[] = {
-	{ .name = "User FS",
-	  .offset =  0,
-	  .size =   16 * 0x00100000 },
-	{ .name = "RBTX4925 flash partition 2",
-	  .offset = 16 * 0x00100000,
-	  .size =   48 * 0x00100000},
-};
-
-static struct mtd_partition partition_info128k[] = {
-	{ .name = "Skip bad section",
-	  .offset =  0,
-	  .size =   16 * 0x00100000 },
-	{ .name = "User FS",
-	  .offset = 16 * 0x00100000,
-	  .size =   112 * 0x00100000 },
-};
-#define NUM_PARTITIONS16K  2
-#define NUM_PARTITIONS32K  2
-#define NUM_PARTITIONS64K  2
-#define NUM_PARTITIONS128K 2
-
-/* 
- *	hardware specific access to control-lines
-*/
-static void tx4925ndfmc_hwcontrol(struct mtd_info *mtd, int cmd)
-{
-
-	switch(cmd){
-
-		case NAND_CTL_SETCLE: 
-			tx4925_ndfmcptr->mcr |= TX4925_NDFMCR_CLE;
-			break;
-		case NAND_CTL_CLRCLE:
-			tx4925_ndfmcptr->mcr &= ~TX4925_NDFMCR_CLE;
-			break;
-		case NAND_CTL_SETALE:
-			tx4925_ndfmcptr->mcr |= TX4925_NDFMCR_ALE;
-			break;
-		case NAND_CTL_CLRALE: 
-			tx4925_ndfmcptr->mcr &= ~TX4925_NDFMCR_ALE;
-			break;
-		case NAND_CTL_SETNCE:
-			tx4925_ndfmcptr->mcr |= TX4925_NDFMCR_CE;
-			break;
-		case NAND_CTL_CLRNCE:
-			tx4925_ndfmcptr->mcr &= ~TX4925_NDFMCR_CE;
-			break;
-		case NAND_CTL_SETWP:
-			tx4925_ndfmcptr->mcr |= TX4925_NDFMCR_WE;
-			break;
-		case NAND_CTL_CLRWP:
-			tx4925_ndfmcptr->mcr &= ~TX4925_NDFMCR_WE;
-			break;
-	}
-}
-
-/*
-*	read device ready pin
-*/
-static int tx4925ndfmc_device_ready(struct mtd_info *mtd)
-{
-	int ready;
-	ready = (tx4925_ndfmcptr->sr & TX4925_NDSFR_BUSY) ? 0 : 1;
-	return ready;
-}
-void tx4925ndfmc_enable_hwecc(struct mtd_info *mtd, int mode)
-{
-	/* reset first */
-	tx4925_ndfmcptr->mcr |= TX4925_NDFMCR_ECC_CNTL_MASK;
-	tx4925_ndfmcptr->mcr &= ~TX4925_NDFMCR_ECC_CNTL_MASK;
-	tx4925_ndfmcptr->mcr |= TX4925_NDFMCR_ECC_CNTL_ENAB;
-}
-static void tx4925ndfmc_disable_ecc(void)
-{
-	tx4925_ndfmcptr->mcr &= ~TX4925_NDFMCR_ECC_CNTL_MASK;
-}
-static void tx4925ndfmc_enable_read_ecc(void)
-{
-	tx4925_ndfmcptr->mcr &= ~TX4925_NDFMCR_ECC_CNTL_MASK;
-	tx4925_ndfmcptr->mcr |= TX4925_NDFMCR_ECC_CNTL_READ;
-}
-void tx4925ndfmc_readecc(struct mtd_info *mtd, const u_char *dat, u_char *ecc_code){
-	int i;
-	u_char *ecc = ecc_code;
-        tx4925ndfmc_enable_read_ecc();
-	for (i = 0;i < 6;i++,ecc++)
-		*ecc = tx4925_read_nfmc(&(tx4925_ndfmcptr->dtr));
-        tx4925ndfmc_disable_ecc();
-}
-void tx4925ndfmc_device_setup(void)
-{
-
-	*(unsigned char *)0xbb005000 &= ~0x08;
-
-        /* reset NDFMC */
-        tx4925_ndfmcptr->rstr |= TX4925_NDFRSTR_RST;
-	while (tx4925_ndfmcptr->rstr & TX4925_NDFRSTR_RST);       
-
-	/* setup BusSeparete, Hold Time, Strobe Pulse Width */
-	tx4925_ndfmcptr->mcr = TX4925_BSPRT ? TX4925_NDFMCR_BSPRT : 0;
-	tx4925_ndfmcptr->spr = TX4925_HOLD << 4 | TX4925_SPW;             
-}
-static u_char tx4925ndfmc_nand_read_byte(struct mtd_info *mtd)
-{
-        struct nand_chip *this = mtd->priv;
-        return tx4925_read_nfmc(this->IO_ADDR_R);
-}
-
-static void tx4925ndfmc_nand_write_byte(struct mtd_info *mtd, u_char byte)
-{
-        struct nand_chip *this = mtd->priv;
-        tx4925_write_nfmc(byte, this->IO_ADDR_W);
-}
-
-static void tx4925ndfmc_nand_write_buf(struct mtd_info *mtd, const u_char *buf, int len)
-{
-	int i;
-	struct nand_chip *this = mtd->priv;
-
-	for (i=0; i<len; i++)
-		tx4925_write_nfmc(buf[i], this->IO_ADDR_W);
-}
-
-static void tx4925ndfmc_nand_read_buf(struct mtd_info *mtd, u_char *buf, int len)
-{
-	int i;
-	struct nand_chip *this = mtd->priv;
-
-	for (i=0; i<len; i++)
-		buf[i] = tx4925_read_nfmc(this->IO_ADDR_R);
-}
-
-static int tx4925ndfmc_nand_verify_buf(struct mtd_info *mtd, const u_char *buf, int len)
-{
-	int i;
-	struct nand_chip *this = mtd->priv;
-
-	for (i=0; i<len; i++)
-		if (buf[i] != tx4925_read_nfmc(this->IO_ADDR_R))
-			return -EFAULT;
-
-	return 0;
-}
-
-/*
- * Send command to NAND device
- */
-static void tx4925ndfmc_nand_command (struct mtd_info *mtd, unsigned command, int column, int page_addr)
-{
-	register struct nand_chip *this = mtd->priv;
-
-	/* Begin command latch cycle */
-	this->hwcontrol(mtd, NAND_CTL_SETCLE);
-	/*
-	 * Write out the command to the device.
-	 */
-	if (command == NAND_CMD_SEQIN) {
-		int readcmd;
-
-		if (column >= mtd->oobblock) {
-			/* OOB area */
-			column -= mtd->oobblock;
-			readcmd = NAND_CMD_READOOB;
-		} else if (column < 256) {
-			/* First 256 bytes --> READ0 */
-			readcmd = NAND_CMD_READ0;
-		} else {
-			column -= 256;
-			readcmd = NAND_CMD_READ1;
-		}
-		this->write_byte(mtd, readcmd);
-	}
-	this->write_byte(mtd, command);
-
-	/* Set ALE and clear CLE to start address cycle */
-	this->hwcontrol(mtd, NAND_CTL_CLRCLE);
-
-	if (column != -1 || page_addr != -1) {
-		this->hwcontrol(mtd, NAND_CTL_SETALE);
-
-		/* Serially input address */
-		if (column != -1)
-			this->write_byte(mtd, column);
-		if (page_addr != -1) {
-			this->write_byte(mtd, (unsigned char) (page_addr & 0xff));
-			this->write_byte(mtd, (unsigned char) ((page_addr >> 8) & 0xff));
-			/* One more address cycle for higher density devices */
-			if (mtd->size & 0x0c000000) 
-				this->write_byte(mtd, (unsigned char) ((page_addr >> 16) & 0x0f));
-		}
-		/* Latch in address */
-		this->hwcontrol(mtd, NAND_CTL_CLRALE);
-	}
-	
-	/* 
-	 * program and erase have their own busy handlers 
-	 * status and sequential in needs no delay
-	*/
-	switch (command) {
-			
-	case NAND_CMD_PAGEPROG:
-		/* Turn off WE */
-		this->hwcontrol (mtd, NAND_CTL_CLRWP);
-                return;
-
-	case NAND_CMD_SEQIN:
-		/* Turn on WE */
-		this->hwcontrol (mtd, NAND_CTL_SETWP);
-                return;
-
-	case NAND_CMD_ERASE1:
-	case NAND_CMD_ERASE2:
-	case NAND_CMD_STATUS:
-		return;
-
-	case NAND_CMD_RESET:
-		if (this->dev_ready)	
-			break;
-		this->hwcontrol(mtd, NAND_CTL_SETCLE);
-		this->write_byte(mtd, NAND_CMD_STATUS);
-		this->hwcontrol(mtd, NAND_CTL_CLRCLE);
-		while ( !(this->read_byte(mtd) & 0x40));
-		return;
-
-	/* This applies to read commands */	
-	default:
-		/* 
-		 * If we don't have access to the busy pin, we apply the given
-		 * command delay
-		*/
-		if (!this->dev_ready) {
-			udelay (this->chip_delay);
-			return;
-		}	
-	}
-	
-	/* wait until command is processed */
-	while (!this->dev_ready(mtd));
-}
-
-#ifdef CONFIG_MTD_CMDLINE_PARTS
-extern int parse_cmdline_partitions(struct mtd_info *master, struct mtd_partitio
-n **pparts, char *);
-#endif
-
-/*
- * Main initialization routine
- */
-extern int nand_correct_data(struct mtd_info *mtd, u_char *dat, u_char *read_ecc, u_char *calc_ecc);
-int __init tx4925ndfmc_init (void)
-{
-	struct nand_chip *this;
-	int err = 0;
-
-	/* Allocate memory for MTD device structure and private data */
-	tx4925ndfmc_mtd = kmalloc (sizeof(struct mtd_info) + sizeof (struct nand_chip),
-				GFP_KERNEL);
-	if (!tx4925ndfmc_mtd) {
-		printk ("Unable to allocate RBTX4925 NAND MTD device structure.\n");
-		err = -ENOMEM;
-		goto out;
-	}
-
-        tx4925ndfmc_device_setup();
-
-	/* io is indirect via a register so don't need to ioremap address */
-
-	/* Get pointer to private data */
-	this = (struct nand_chip *) (&tx4925ndfmc_mtd[1]);
-
-	/* Initialize structures */
-	memset((char *) tx4925ndfmc_mtd, 0, sizeof(struct mtd_info));
-	memset((char *) this, 0, sizeof(struct nand_chip));
-
-	/* Link the private data with the MTD structure */
-	tx4925ndfmc_mtd->priv = this;
-
-	/* Set address of NAND IO lines */
-	this->IO_ADDR_R = (void __iomem *)&(tx4925_ndfmcptr->dtr);
-	this->IO_ADDR_W = (void __iomem *)&(tx4925_ndfmcptr->dtr);
-	this->hwcontrol = tx4925ndfmc_hwcontrol;
-	this->enable_hwecc = tx4925ndfmc_enable_hwecc;
-	this->calculate_ecc = tx4925ndfmc_readecc;
-	this->correct_data = nand_correct_data;
-	this->eccmode = NAND_ECC_HW6_512;	
-	this->dev_ready = tx4925ndfmc_device_ready;
-	/* 20 us command delay time */
-	this->chip_delay = 20;		
-        this->read_byte = tx4925ndfmc_nand_read_byte;
-        this->write_byte = tx4925ndfmc_nand_write_byte;
-	this->cmdfunc = tx4925ndfmc_nand_command;
-	this->write_buf = tx4925ndfmc_nand_write_buf;
-	this->read_buf = tx4925ndfmc_nand_read_buf;
-	this->verify_buf = tx4925ndfmc_nand_verify_buf;
-
-	/* Scan to find existance of the device */
-	if (nand_scan (tx4925ndfmc_mtd, 1)) {
-		err = -ENXIO;
-		goto out_ior;
-	}
-
-	/* Register the partitions */
-#ifdef CONFIG_MTD_CMDLINE_PARTS
-        {
-                int mtd_parts_nb = 0;
-                struct mtd_partition *mtd_parts = 0;
-                mtd_parts_nb = parse_cmdline_partitions(tx4925ndfmc_mtd, &mtd_parts, "tx4925ndfmc");
-                if (mtd_parts_nb > 0)
-                        add_mtd_partitions(tx4925ndfmc_mtd, mtd_parts, mtd_parts_nb);
-                else
-                        add_mtd_device(tx4925ndfmc_mtd);
-        }
-#else /* ifdef CONFIG_MTD_CMDLINE_PARTS */
-	switch(tx4925ndfmc_mtd->size){
-		case 0x01000000: add_mtd_partitions(tx4925ndfmc_mtd, partition_info16k, NUM_PARTITIONS16K); break;
-		case 0x02000000: add_mtd_partitions(tx4925ndfmc_mtd, partition_info32k, NUM_PARTITIONS32K); break;
-		case 0x04000000: add_mtd_partitions(tx4925ndfmc_mtd, partition_info64k, NUM_PARTITIONS64K); break; 
-		case 0x08000000: add_mtd_partitions(tx4925ndfmc_mtd, partition_info128k, NUM_PARTITIONS128K); break; 
-		default: {
-			printk ("Unsupported SmartMedia device\n"); 
-			err = -ENXIO;
-			goto out_ior;
-		}
-	}
-#endif /* ifdef CONFIG_MTD_CMDLINE_PARTS */
-	goto out;
-
-out_ior:
-out:
-	return err;
-}
-
-module_init(tx4925ndfmc_init);
-
-/*
- * Clean up routine
- */
-#ifdef MODULE
-static void __exit tx4925ndfmc_cleanup (void)
-{
-	/* Release resources, unregister device */
-	nand_release (tx4925ndfmc_mtd);
-
-	/* Free the MTD device structure */
-	kfree (tx4925ndfmc_mtd);
-}
-module_exit(tx4925ndfmc_cleanup);
-#endif
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Alice Hennessy <ahennessy@mvista.com>");
-MODULE_DESCRIPTION("Glue layer for SmartMediaCard on Toshiba RBTX4925");