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Commit 4d964824 authored by Shane McDonald's avatar Shane McDonald Committed by David Woodhouse
Browse files

mtd: remove pmcmsp-ramroot.c 



The RAMROOT function was a successful but non-portable attempt to append
the root filesystem to the end of the kernel image.  The preferred and
portable solution is to use an initramfs instead.

The only user of this function was the msp71xx configuration
in the MIPS architecture; as the use of the RAMROOT has been removed
from that configuration, there are no more users, so this code
can be removed.

Signed-off-by: default avatarShane McDonald <mcdonald.shane@gmail.com>
Signed-off-by: default avatarArtem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: default avatarDavid Woodhouse <David.Woodhouse@intel.com>
parent d3412dbd

drivers/mtd/maps/Kconfig

+0 −9
Original line number Original line Diff line number Diff line
@@ -105,15 +105,6 @@ config MSP_FLASH_MAP_LIMIT 
	default "0x02000000"

	default "0x02000000"

	depends on MSP_FLASH_MAP_LIMIT_32M

	depends on MSP_FLASH_MAP_LIMIT_32M





config MTD_PMC_MSP_RAMROOT

	tristate "Embedded RAM block device for root on PMC-Sierra MSP"

	depends on PMC_MSP_EMBEDDED_ROOTFS && \

			(MTD_BLOCK || MTD_BLOCK_RO) && \

			MTD_RAM

	help

	  This provides support for the embedded root file system

          on PMC MSP devices.  This memory is mapped as a MTD block device.



config MTD_SUN_UFLASH

config MTD_SUN_UFLASH

	tristate "Sun Microsystems userflash support"

	tristate "Sun Microsystems userflash support"

	depends on SPARC && MTD_CFI && PCI

	depends on SPARC && MTD_CFI && PCI

drivers/mtd/maps/Makefile

+0 −1
Original line number Original line Diff line number Diff line
@@ -25,7 +25,6 @@ obj-$(CONFIG_MTD_OCTAGON) += octagon-5066.o 
obj-$(CONFIG_MTD_PHYSMAP)	+= physmap.o

obj-$(CONFIG_MTD_PHYSMAP)	+= physmap.o

obj-$(CONFIG_MTD_PHYSMAP_OF)	+= physmap_of.o

obj-$(CONFIG_MTD_PHYSMAP_OF)	+= physmap_of.o

obj-$(CONFIG_MTD_PMC_MSP_EVM)   += pmcmsp-flash.o

obj-$(CONFIG_MTD_PMC_MSP_EVM)   += pmcmsp-flash.o

obj-$(CONFIG_MTD_PMC_MSP_RAMROOT)+= pmcmsp-ramroot.o

obj-$(CONFIG_MTD_PCMCIA)	+= pcmciamtd.o

obj-$(CONFIG_MTD_PCMCIA)	+= pcmciamtd.o

obj-$(CONFIG_MTD_RPXLITE)	+= rpxlite.o

obj-$(CONFIG_MTD_RPXLITE)	+= rpxlite.o

obj-$(CONFIG_MTD_TQM8XXL)	+= tqm8xxl.o

obj-$(CONFIG_MTD_TQM8XXL)	+= tqm8xxl.o

drivers/mtd/maps/pmcmsp-ramroot.c

deleted100644 → 0
+0 −104
Original line number Original line Diff line number Diff line 
/*

 * Mapping of the rootfs in a physical region of memory

 *

 * Copyright (C) 2005-2007 PMC-Sierra Inc.

 * Author: Andrew Hughes, Andrew_Hughes@pmc-sierra.com

 *

 *  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  SOFTWARE  IS PROVIDED   ``AS  IS'' AND   ANY  EXPRESS OR IMPLIED

 *  WARRANTIES,   INCLUDING, BUT NOT  LIMITED  TO, THE IMPLIED WARRANTIES OF

 *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN

 *  NO  EVENT  SHALL   THE AUTHOR  BE    LIABLE FOR ANY   DIRECT, INDIRECT,

 *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT

 *  NOT LIMITED   TO, PROCUREMENT OF  SUBSTITUTE GOODS  OR SERVICES; LOSS OF

 *  USE, DATA,  OR PROFITS; OR  BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON

 *  ANY THEORY OF LIABILITY, WHETHER IN  CONTRACT, STRICT LIABILITY, OR TORT

 *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF

 *  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

 *

 *  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.,

 *  675 Mass Ave, Cambridge, MA 02139, USA.

 */



#include <linux/module.h>

#include <linux/types.h>

#include <linux/kernel.h>

#include <linux/init.h>

#include <linux/slab.h>

#include <linux/fs.h>

#include <linux/root_dev.h>

#include <linux/mtd/mtd.h>

#include <linux/mtd/map.h>



#include <asm/io.h>



#include <msp_prom.h>



static struct mtd_info *rr_mtd;



struct map_info rr_map = {

	.name = "ramroot",

	.bankwidth = 4,

};



static int __init init_rrmap(void)

{

	void *ramroot_start;

	unsigned long ramroot_size;



	/* Check for supported rootfs types */

	if (get_ramroot(&ramroot_start, &ramroot_size)) {

		rr_map.phys = CPHYSADDR(ramroot_start);

		rr_map.size = ramroot_size;



		printk(KERN_NOTICE

			"PMC embedded root device: 0x%08lx @ 0x%08lx\n",

			rr_map.size, (unsigned long)rr_map.phys);

	} else {

		printk(KERN_ERR

			"init_rrmap: no supported embedded rootfs detected!\n");

		return -ENXIO;

	}



	/* Map rootfs to I/O space for block device driver */

	rr_map.virt = ioremap(rr_map.phys, rr_map.size);

	if (!rr_map.virt) {

		printk(KERN_ERR "Failed to ioremap\n");

		return -EIO;

	}



	simple_map_init(&rr_map);



	rr_mtd = do_map_probe("map_ram", &rr_map);

	if (rr_mtd) {

		rr_mtd->owner = THIS_MODULE;



		add_mtd_device(rr_mtd);



		return 0;

	}



	iounmap(rr_map.virt);

	return -ENXIO;

}



static void __exit cleanup_rrmap(void)

{

	del_mtd_device(rr_mtd);

	map_destroy(rr_mtd);



	iounmap(rr_map.virt);

	rr_map.virt = NULL;

}



MODULE_AUTHOR("PMC-Sierra, Inc");

MODULE_DESCRIPTION("MTD map driver for embedded PMC-Sierra MSP filesystem");

MODULE_LICENSE("GPL");



module_init(init_rrmap);

module_exit(cleanup_rrmap);