Commit 76037579 authored by H Hartley Sweeten's avatar H Hartley Sweeten Committed by David Woodhouse
Browse files

mtd: Remove now-defunct ts7250 nand driver 



The ts72xx platform has been updated to use the generic platform nand
driver (plat_nand.c).  This removes the now-defunct ts7250.c nand driver.

Signed-off-by: default avatarH Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Matthieu Crapet <mcrapet@gmail.com>
Cc: Jesse Off <joff@embeddedARM.com>
Signed-off-by: default avatarDavid Woodhouse <David.Woodhouse@intel.com>
parent 030d2dd4

arch/arm/mach-ep93xx/include/mach/ts72xx.h

+0 −19
Original line number Diff line number Diff line
@@ -9,9 +9,6 @@ 
 * febff000	22000000	4K	model number register

 * febfe000	22400000	4K	options register

 * febfd000	22800000	4K	options register #2

 * febfc000	[67]0000000	4K	NAND data register

 * febfb000	[67]0400000	4K	NAND control register

 * febfa000	[67]0800000	4K	NAND busy register

 * febf9000	10800000	4K	TS-5620 RTC index register

 * febf8000	11700000	4K	TS-5620 RTC data register

 */
@@ -41,22 +38,6 @@ 
#define TS72XX_OPTIONS2_TS9420_BOOT	0x02





#define TS72XX_NAND1_DATA_PHYS_BASE	0x60000000

#define TS72XX_NAND2_DATA_PHYS_BASE	0x70000000

#define TS72XX_NAND_DATA_VIRT_BASE	0xfebfc000

#define TS72XX_NAND_DATA_SIZE		0x00001000



#define TS72XX_NAND1_CONTROL_PHYS_BASE	0x60400000

#define TS72XX_NAND2_CONTROL_PHYS_BASE	0x70400000

#define TS72XX_NAND_CONTROL_VIRT_BASE	0xfebfb000

#define TS72XX_NAND_CONTROL_SIZE	0x00001000



#define TS72XX_NAND1_BUSY_PHYS_BASE	0x60800000

#define TS72XX_NAND2_BUSY_PHYS_BASE	0x70800000

#define TS72XX_NAND_BUSY_VIRT_BASE	0xfebfa000

#define TS72XX_NAND_BUSY_SIZE		0x00001000





#define TS72XX_RTC_INDEX_VIRT_BASE	0xfebf9000

#define TS72XX_RTC_INDEX_PHYS_BASE	0x10800000

#define TS72XX_RTC_INDEX_SIZE		0x00001000

drivers/mtd/nand/Kconfig

+0 −6
Original line number Diff line number Diff line
@@ -95,12 +95,6 @@ config MTD_NAND_OMAP_PREFETCH_DMA 
	 or in DMA interrupt mode.

	 Say y for DMA mode or MPU mode will be used



config MTD_NAND_TS7250

	tristate "NAND Flash device on TS-7250 board"

	depends on MACH_TS72XX

	help

	  Support for NAND flash on Technologic Systems TS-7250 platform.



config MTD_NAND_IDS

	tristate

drivers/mtd/nand/Makefile

+0 −1
Original line number Diff line number Diff line
@@ -19,7 +19,6 @@ obj-$(CONFIG_MTD_NAND_DISKONCHIP) += diskonchip.o 
obj-$(CONFIG_MTD_NAND_H1900)		+= h1910.o

obj-$(CONFIG_MTD_NAND_RTC_FROM4)	+= rtc_from4.o

obj-$(CONFIG_MTD_NAND_SHARPSL)		+= sharpsl.o

obj-$(CONFIG_MTD_NAND_TS7250)		+= ts7250.o

obj-$(CONFIG_MTD_NAND_NANDSIM)		+= nandsim.o

obj-$(CONFIG_MTD_NAND_CS553X)		+= cs553x_nand.o

obj-$(CONFIG_MTD_NAND_NDFC)		+= ndfc.o

drivers/mtd/nand/ts7250.c

deleted100644 → 0
+0 −207
Original line number Diff line number Diff line 
/*

 * drivers/mtd/nand/ts7250.c

 *

 * Copyright (C) 2004 Technologic Systems (support@embeddedARM.com)

 *

 * Derived from drivers/mtd/nand/edb7312.c

 *   Copyright (C) 2004 Marius Gröger (mag@sysgo.de)

 *

 * Derived from drivers/mtd/nand/autcpu12.c

 *   Copyright (c) 2001 Thomas Gleixner (gleixner@autronix.de)

 *

 * 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

 *   TS-7250 board which utilizes a Samsung 32 Mbyte part.

 */



#include <linux/slab.h>

#include <linux/module.h>

#include <linux/init.h>

#include <linux/mtd/mtd.h>

#include <linux/mtd/nand.h>

#include <linux/mtd/partitions.h>

#include <linux/io.h>



#include <mach/hardware.h>

#include <mach/ts72xx.h>



#include <asm/sizes.h>

#include <asm/mach-types.h>



/*

 * MTD structure for TS7250 board

 */

static struct mtd_info *ts7250_mtd = NULL;



#ifdef CONFIG_MTD_PARTITIONS

static const char *part_probes[] = { "cmdlinepart", NULL };



#define NUM_PARTITIONS 3



/*

 * Define static partitions for flash device

 */

static struct mtd_partition partition_info32[] = {

	{

		.name		= "TS-BOOTROM",

		.offset		= 0x00000000,

		.size		= 0x00004000,

	}, {

		.name		= "Linux",

		.offset		= 0x00004000,

		.size		= 0x01d00000,

	}, {

		.name		= "RedBoot",

		.offset		= 0x01d04000,

		.size		= 0x002fc000,

	},

};



/*

 * Define static partitions for flash device

 */

static struct mtd_partition partition_info128[] = {

	{

		.name		= "TS-BOOTROM",

		.offset		= 0x00000000,

		.size		= 0x00004000,

	}, {

		.name		= "Linux",

		.offset		= 0x00004000,

		.size		= 0x07d00000,

	}, {

		.name		= "RedBoot",

		.offset		= 0x07d04000,

		.size		= 0x002fc000,

	},

};

#endif





/*

 *	hardware specific access to control-lines

 *

 *	ctrl:

 *	NAND_NCE: bit 0 -> bit 2

 *	NAND_CLE: bit 1 -> bit 1

 *	NAND_ALE: bit 2 -> bit 0

 */

static void ts7250_hwcontrol(struct mtd_info *mtd, int cmd, unsigned int ctrl)

{

	struct nand_chip *chip = mtd->priv;



	if (ctrl & NAND_CTRL_CHANGE) {

		unsigned long addr = TS72XX_NAND_CONTROL_VIRT_BASE;

		unsigned char bits;



		bits = (ctrl & NAND_NCE) << 2;

		bits |= ctrl & NAND_CLE;

		bits |= (ctrl & NAND_ALE) >> 2;



		__raw_writeb((__raw_readb(addr) & ~0x7) | bits, addr);

	}



	if (cmd != NAND_CMD_NONE)

		writeb(cmd, chip->IO_ADDR_W);

}



/*

 *	read device ready pin

 */

static int ts7250_device_ready(struct mtd_info *mtd)

{

	return __raw_readb(TS72XX_NAND_BUSY_VIRT_BASE) & 0x20;

}



/*

 * Main initialization routine

 */

static int __init ts7250_init(void)

{

	struct nand_chip *this;

	const char *part_type = 0;

	int mtd_parts_nb = 0;

	struct mtd_partition *mtd_parts = 0;



	if (!machine_is_ts72xx() || board_is_ts7200())

		return -ENXIO;



	/* Allocate memory for MTD device structure and private data */

	ts7250_mtd = kmalloc(sizeof(struct mtd_info) + sizeof(struct nand_chip), GFP_KERNEL);

	if (!ts7250_mtd) {

		printk("Unable to allocate TS7250 NAND MTD device structure.\n");

		return -ENOMEM;

	}



	/* Get pointer to private data */

	this = (struct nand_chip *)(&ts7250_mtd[1]);



	/* Initialize structures */

	memset(ts7250_mtd, 0, sizeof(struct mtd_info));

	memset(this, 0, sizeof(struct nand_chip));



	/* Link the private data with the MTD structure */

	ts7250_mtd->priv = this;

	ts7250_mtd->owner = THIS_MODULE;



	/* insert callbacks */

	this->IO_ADDR_R = (void *)TS72XX_NAND_DATA_VIRT_BASE;

	this->IO_ADDR_W = (void *)TS72XX_NAND_DATA_VIRT_BASE;

	this->cmd_ctrl = ts7250_hwcontrol;

	this->dev_ready = ts7250_device_ready;

	this->chip_delay = 15;

	this->ecc.mode = NAND_ECC_SOFT;



	printk("Searching for NAND flash...\n");

	/* Scan to find existence of the device */

	if (nand_scan(ts7250_mtd, 1)) {

		kfree(ts7250_mtd);

		return -ENXIO;

	}

#ifdef CONFIG_MTD_PARTITIONS

	ts7250_mtd->name = "ts7250-nand";

	mtd_parts_nb = parse_mtd_partitions(ts7250_mtd, part_probes, &mtd_parts, 0);

	if (mtd_parts_nb > 0)

		part_type = "command line";

	else

		mtd_parts_nb = 0;

#endif

	if (mtd_parts_nb == 0) {

		mtd_parts = partition_info32;

		if (ts7250_mtd->size >= (128 * 0x100000))

			mtd_parts = partition_info128;

		mtd_parts_nb = NUM_PARTITIONS;

		part_type = "static";

	}



	/* Register the partitions */

	printk(KERN_NOTICE "Using %s partition definition\n", part_type);

	add_mtd_partitions(ts7250_mtd, mtd_parts, mtd_parts_nb);



	/* Return happy */

	return 0;

}



module_init(ts7250_init);



/*

 * Clean up routine

 */

static void __exit ts7250_cleanup(void)

{

	/* Unregister the device */

	del_mtd_device(ts7250_mtd);



	/* Free the MTD device structure */

	kfree(ts7250_mtd);

}



module_exit(ts7250_cleanup);



MODULE_LICENSE("GPL");

MODULE_AUTHOR("Jesse Off <joff@embeddedARM.com>");

MODULE_DESCRIPTION("MTD map driver for Technologic Systems TS-7250 board");

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