Commit b4eab4b8 authored by David Vrabel's avatar David Vrabel Committed by Thomas Gleixner
Browse files

[MTD] Remove Elan-104NC 



Remove support for the Arcom Elan-104NC since it's no longer being maintained.

Signed-off-by: default avatarDavid Vrabel <dvrabel@arcom.com>
Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
parent 32f1a95d

drivers/mtd/maps/Kconfig

+1 −11
Original line number Diff line number Diff line 
# drivers/mtd/maps/Kconfig

# $Id: Kconfig,v 1.45 2005/02/27 21:50:21 ppopov Exp $

# $Id: Kconfig,v 1.46 2005/03/02 14:51:04 dvrabel Exp $



menu "Mapping drivers for chip access"

	depends on MTD!=n
@@ -122,16 +122,6 @@ config MTD_SBC_GXX 
	  More info at

	  <http://www.arcomcontrols.com/products/icp/pc104/processors/SBC_GX1.htm>.



config MTD_ELAN_104NC

	tristate "CFI Flash device mapped on Arcom ELAN-104NC"

	depends on X86 && MTD_CFI_INTELEXT && MTD_PARTITIONS && MTD_COMPLEX_MAPPINGS

	help

	  This provides a driver for the on-board flash of the Arcom Control

	  System's ELAN-104NC development board. By default the flash

	  is split into 3 partitions which are accessed as separate MTD

	  devices. This board utilizes Intel StrataFlash. More info at

	  <http://www.arcomcontrols.com/products/icp/pc104/processors/ELAN104NC.htm>.



config MTD_LUBBOCK

	tristate "CFI Flash device mapped on Intel Lubbock XScale eval board"

	depends on ARCH_LUBBOCK && MTD_CFI_INTELEXT && MTD_PARTITIONS

drivers/mtd/maps/Makefile

+1 −2
Original line number Diff line number Diff line 
#

# linux/drivers/maps/Makefile

#

# $Id: Makefile.common,v 1.25 2005/02/27 21:50:21 ppopov Exp $

# $Id: Makefile.common,v 1.26 2005/03/02 14:51:04 dvrabel Exp $



ifeq ($(CONFIG_MTD_COMPLEX_MAPPINGS),y)

obj-$(CONFIG_MTD)		+= map_funcs.o
@@ -15,7 +15,6 @@ obj-$(CONFIG_MTD_CFI_FLAGADM) += cfi_flagadm.o 
obj-$(CONFIG_MTD_CSTM_MIPS_IXX)	+= cstm_mips_ixx.o

obj-$(CONFIG_MTD_DC21285)	+= dc21285.o

obj-$(CONFIG_MTD_DILNETPC)	+= dilnetpc.o

obj-$(CONFIG_MTD_ELAN_104NC)	+= elan-104nc.o

obj-$(CONFIG_MTD_EPXA10DB)	+= epxa10db-flash.o

obj-$(CONFIG_MTD_IQ80310)	+= iq80310.o

obj-$(CONFIG_MTD_L440GX)	+= l440gx.o

drivers/mtd/maps/elan-104nc.c

deleted100644 → 0
+0 −228
Original line number Diff line number Diff line 
/* elan-104nc.c -- MTD map driver for Arcom Control Systems ELAN-104NC

 

   Copyright (C) 2000 Arcom Control System Ltd

 

   This program is free software; you can redistribute it and/or modify

   it under the terms of the GNU General Public License as published by

   the Free Software Foundation; either version 2 of the License, or

   (at your option) any later version.

 

   This program is distributed in the hope that it will be useful,

   but WITHOUT ANY WARRANTY; without even the implied warranty of

   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

   GNU General Public License for more details.

 

   You should have received a copy of the GNU General Public License

   along with this program; if not, write to the Free Software

   Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA



   $Id: elan-104nc.c,v 1.25 2004/11/28 09:40:39 dwmw2 Exp $



The ELAN-104NC has up to 8 Mibyte of Intel StrataFlash (28F320/28F640) in x16

mode.  This drivers uses the CFI probe and Intel Extended Command Set drivers.



The flash is accessed as follows:



   32 kbyte memory window at 0xb0000-0xb7fff

   

   16 bit I/O port (0x22) for some sort of paging.



The single flash device is divided into 3 partition which appear as separate

MTD devices.



Linux thinks that the I/O port is used by the PIC and hence check_region() will

always fail.  So we don't do it.  I just hope it doesn't break anything.

*/

#include <linux/module.h>

#include <linux/slab.h>

#include <linux/ioport.h>

#include <linux/init.h>

#include <asm/io.h>



#include <linux/mtd/map.h>

#include <linux/mtd/mtd.h>

#include <linux/mtd/partitions.h>



#define WINDOW_START 0xb0000

/* Number of bits in offset. */

#define WINDOW_SHIFT 15

#define WINDOW_LENGTH (1 << WINDOW_SHIFT)

/* The bits for the offset into the window. */

#define WINDOW_MASK (WINDOW_LENGTH-1)

#define PAGE_IO 0x22

#define PAGE_IO_SIZE 2



static volatile int page_in_window = -1; // Current page in window.

static void __iomem *iomapadr;

static DEFINE_SPINLOCK(elan_104nc_spin);



/* partition_info gives details on the logical partitions that the split the 

 * single flash device into. If the size if zero we use up to the end of the

 * device. */

static struct mtd_partition partition_info[]={

    { .name = "ELAN-104NC flash boot partition", 

      .offset = 0, 

      .size = 640*1024 },

    { .name = "ELAN-104NC flash partition 1", 

      .offset = 640*1024, 

      .size = 896*1024 },

    { .name = "ELAN-104NC flash partition 2", 

      .offset = (640+896)*1024 }

};

#define NUM_PARTITIONS (sizeof(partition_info)/sizeof(partition_info[0]))



/*

 * If no idea what is going on here.  This is taken from the FlashFX stuff.

 */

#define ROMCS 1



static inline void elan_104nc_setup(void)

{

    u16 t;



    outw( 0x0023 + ROMCS*2, PAGE_IO );

    t=inb( PAGE_IO+1 );



    t=(t & 0xf9) | 0x04;



    outw( ((0x0023 + ROMCS*2) | (t << 8)), PAGE_IO );

}



static inline void elan_104nc_page(struct map_info *map, unsigned long ofs)

{

	unsigned long page = ofs >> WINDOW_SHIFT;

       

	if( page!=page_in_window ) {

		int cmd1;

		int cmd2;



		cmd1=(page & 0x700) + 0x0833 + ROMCS*0x4000;

		cmd2=((page & 0xff) << 8) + 0x0032;



		outw( cmd1, PAGE_IO );

		outw( cmd2, PAGE_IO );



		page_in_window = page;

	}

}





static map_word elan_104nc_read16(struct map_info *map, unsigned long ofs)

{

	map_word ret;

	spin_lock(&elan_104nc_spin);

	elan_104nc_page(map, ofs);

	ret.x[0] = readw(iomapadr + (ofs & WINDOW_MASK));

	spin_unlock(&elan_104nc_spin);

	return ret;

}



static void elan_104nc_copy_from(struct map_info *map, void *to, unsigned long from, ssize_t len)

{

	while (len) {

		unsigned long thislen = len;

		if (len > (WINDOW_LENGTH - (from & WINDOW_MASK)))

			thislen = WINDOW_LENGTH-(from & WINDOW_MASK);

		

		spin_lock(&elan_104nc_spin);

		elan_104nc_page(map, from);

		memcpy_fromio(to, iomapadr + (from & WINDOW_MASK), thislen);

		spin_unlock(&elan_104nc_spin);

		to += thislen;

		from += thislen;

		len -= thislen;

	}

}



static void elan_104nc_write16(struct map_info *map, map_word d, unsigned long adr)

{

	spin_lock(&elan_104nc_spin);

	elan_104nc_page(map, adr);

	writew(d.x[0], iomapadr + (adr & WINDOW_MASK));

	spin_unlock(&elan_104nc_spin);

}



static void elan_104nc_copy_to(struct map_info *map, unsigned long to, const void *from, ssize_t len)

{	

	while(len) {

		unsigned long thislen = len;

		if (len > (WINDOW_LENGTH - (to & WINDOW_MASK)))

			thislen = WINDOW_LENGTH-(to & WINDOW_MASK);

		

		spin_lock(&elan_104nc_spin);

		elan_104nc_page(map, to);

		memcpy_toio(iomapadr + (to & WINDOW_MASK), from, thislen);

		spin_unlock(&elan_104nc_spin);

		to += thislen;

		from += thislen;

		len -= thislen;

	}

}



static struct map_info elan_104nc_map = {

	.name = "ELAN-104NC flash",

	.phys = NO_XIP,

	.size = 8*1024*1024, /* this must be set to a maximum possible amount

			of flash so the cfi probe routines find all

			the chips */

	.bankwidth = 2,

	.read = elan_104nc_read16,

	.copy_from = elan_104nc_copy_from,

	.write = elan_104nc_write16,

	.copy_to = elan_104nc_copy_to

};



/* MTD device for all of the flash. */

static struct mtd_info *all_mtd;



static void cleanup_elan_104nc(void)

{

	if( all_mtd ) {

		del_mtd_partitions( all_mtd );

		map_destroy( all_mtd );

	}



	iounmap(iomapadr);

}



static int __init init_elan_104nc(void)

{

	/* Urg! We use I/O port 0x22 without request_region()ing it,

	   because it's already allocated to the PIC. */



  	iomapadr = ioremap(WINDOW_START, WINDOW_LENGTH);

	if (!iomapadr) {

		printk( KERN_ERR"%s: failed to ioremap memory region\n",

			elan_104nc_map.name );

		return -EIO;

	}



	printk( KERN_INFO"%s: IO:0x%x-0x%x MEM:0x%x-0x%x\n",

		elan_104nc_map.name,

		PAGE_IO, PAGE_IO+PAGE_IO_SIZE-1,

		WINDOW_START, WINDOW_START+WINDOW_LENGTH-1 );



	elan_104nc_setup();



	/* Probe for chip. */

	all_mtd = do_map_probe("cfi_probe",  &elan_104nc_map );

	if( !all_mtd ) {

		cleanup_elan_104nc();

		return -ENXIO;

	}

	

	all_mtd->owner = THIS_MODULE;



	/* Create MTD devices for each partition. */

	add_mtd_partitions( all_mtd, partition_info, NUM_PARTITIONS );



	return 0;

}



module_init(init_elan_104nc);

module_exit(cleanup_elan_104nc);





MODULE_LICENSE("GPL");

MODULE_AUTHOR("Arcom Control Systems Ltd.");

MODULE_DESCRIPTION("MTD map driver for Arcom Control Systems ELAN-104NC");