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Commit c188a141 authored by Artem Bityutskiy's avatar Artem Bityutskiy Committed by David Woodhouse
Browse files

mtd: remove the h1910 NAND driver 



This driver is marked as broken for 2 years, and no one cares to make it
compile and work. Now it is time to zap it.

Signed-off-by: default avatarArtem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: default avatarDavid Woodhouse <David.Woodhouse@intel.com>
parent 3e6f9aff

drivers/mtd/nand/Kconfig

+0 −6
Original line number Diff line number Diff line
@@ -73,12 +73,6 @@ config MTD_NAND_DENALI_SCRATCH_REG_ADDR 
          scratch register here to enable this feature. On Intel Moorestown

          boards, the scratch register is at 0xFF108018.



config MTD_NAND_H1900

	tristate "iPAQ H1900 flash"

	depends on ARCH_PXA && BROKEN

	help

	  This enables the driver for the iPAQ h1900 flash.



config MTD_NAND_GPIO

	tristate "GPIO NAND Flash driver"

	depends on GENERIC_GPIO && ARM

drivers/mtd/nand/Makefile

+0 −1
Original line number Diff line number Diff line
@@ -20,7 +20,6 @@ obj-$(CONFIG_MTD_NAND_DAVINCI) += davinci_nand.o 
obj-$(CONFIG_MTD_NAND_DISKONCHIP)	+= diskonchip.o

obj-$(CONFIG_MTD_NAND_DOCG4)		+= docg4.o

obj-$(CONFIG_MTD_NAND_FSMC)		+= fsmc_nand.o

obj-$(CONFIG_MTD_NAND_H1900)		+= h1910.o

obj-$(CONFIG_MTD_NAND_SHARPSL)		+= sharpsl.o

obj-$(CONFIG_MTD_NAND_NANDSIM)		+= nandsim.o

obj-$(CONFIG_MTD_NAND_CS553X)		+= cs553x_nand.o

drivers/mtd/nand/h1910.c

deleted100644 → 0
+0 −167
Original line number Diff line number Diff line 
/*

 *  drivers/mtd/nand/h1910.c

 *

 *  Copyright (C) 2003 Joshua Wise (joshua@joshuawise.com)

 *

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

 *       Copyright (C) 2002 Marius Gröger (mag@sysgo.de)

 *       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

 *   iPAQ h1910 board which utilizes the Samsung K9F2808 part. This is

 *   a 128Mibit (16MiB x 8 bits) NAND flash device.

 */



#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/h1900-gpio.h>

#include <mach/ipaq.h>



/*

 * MTD structure for EDB7312 board

 */

static struct mtd_info *h1910_nand_mtd = NULL;



/*

 * Module stuff

 */



/*

 * Define static partitions for flash device

 */

static struct mtd_partition partition_info[] = {

      {name:"h1910 NAND Flash",

	      offset:0,

      size:16 * 1024 * 1024}

};



#define NUM_PARTITIONS 1



/*

 *	hardware specific access to control-lines

 *

 *	NAND_NCE: bit 0 - don't care

 *	NAND_CLE: bit 1 - address bit 2

 *	NAND_ALE: bit 2 - address bit 3

 */

static void h1910_hwcontrol(struct mtd_info *mtd, int cmd,

			    unsigned int ctrl)

{

	struct nand_chip *chip = mtd->priv;



	if (cmd != NAND_CMD_NONE)

		writeb(cmd, chip->IO_ADDR_W | ((ctrl & 0x6) << 1));

}



/*

 *	read device ready pin

 */

#if 0

static int h1910_device_ready(struct mtd_info *mtd)

{

	return (GPLR(55) & GPIO_bit(55));

}

#endif



/*

 * Main initialization routine

 */

static int __init h1910_init(void)

{

	struct nand_chip *this;

	void __iomem *nandaddr;



	if (!machine_is_h1900())

		return -ENODEV;



	nandaddr = ioremap(0x08000000, 0x1000);

	if (!nandaddr) {

		printk("Failed to ioremap nand flash.\n");

		return -ENOMEM;

	}



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

	h1910_nand_mtd = kmalloc(sizeof(struct mtd_info) + sizeof(struct nand_chip), GFP_KERNEL);

	if (!h1910_nand_mtd) {

		printk("Unable to allocate h1910 NAND MTD device structure.\n");

		iounmap((void *)nandaddr);

		return -ENOMEM;

	}



	/* Get pointer to private data */

	this = (struct nand_chip *)(&h1910_nand_mtd[1]);



	/* Initialize structures */

	memset(h1910_nand_mtd, 0, sizeof(struct mtd_info));

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



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

	h1910_nand_mtd->priv = this;

	h1910_nand_mtd->owner = THIS_MODULE;



	/*

	 * Enable VPEN

	 */

	GPSR(37) = GPIO_bit(37);



	/* insert callbacks */

	this->IO_ADDR_R = nandaddr;

	this->IO_ADDR_W = nandaddr;

	this->cmd_ctrl = h1910_hwcontrol;

	this->dev_ready = NULL;	/* unknown whether that was correct or not so we will just do it like this */

	/* 15 us command delay time */

	this->chip_delay = 50;

	this->ecc.mode = NAND_ECC_SOFT;



	/* Scan to find existence of the device */

	if (nand_scan(h1910_nand_mtd, 1)) {

		printk(KERN_NOTICE "No NAND device - returning -ENXIO\n");

		kfree(h1910_nand_mtd);

		iounmap((void *)nandaddr);

		return -ENXIO;

	}



	/* Register the partitions */

	mtd_device_parse_register(h1910_nand_mtd, NULL, NULL, partition_info,

				  NUM_PARTITIONS);



	/* Return happy */

	return 0;

}



module_init(h1910_init);



/*

 * Clean up routine

 */

static void __exit h1910_cleanup(void)

{

	struct nand_chip *this = (struct nand_chip *)&h1910_nand_mtd[1];



	/* Release resources, unregister device */

	nand_release(h1910_nand_mtd);



	/* Release io resource */

	iounmap((void *)this->IO_ADDR_W);



	/* Free the MTD device structure */

	kfree(h1910_nand_mtd);

}



module_exit(h1910_cleanup);



MODULE_LICENSE("GPL");

MODULE_AUTHOR("Joshua Wise <joshua at joshuawise dot com>");

MODULE_DESCRIPTION("NAND flash driver for iPAQ h1910");