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Date: Sat, 02 May 2009 09:40:06 -0600
From: Shane McDonald <mcdonald.shane@...il.com>
To: linux-mtd@...ts.infradead.org
Cc: linux-mips@...ux-mips.org, ralf@...ux-mips.org, hch@....de,
dwmw2@...radead.org, linux-kernel@...r.kernel.org
Subject: [PATCH] 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: Shane McDonald <mcdonald.shane@...il.com>
---
drivers/mtd/maps/Kconfig | 9 ---
drivers/mtd/maps/Makefile | 1 -
drivers/mtd/maps/pmcmsp-ramroot.c | 104 -------------------------------------
3 files changed, 0 insertions(+), 114 deletions(-)
delete mode 100644 drivers/mtd/maps/pmcmsp-ramroot.c
diff --git a/drivers/mtd/maps/Kconfig b/drivers/mtd/maps/Kconfig
index 82923bd..2807833 100644
--- a/drivers/mtd/maps/Kconfig
+++ b/drivers/mtd/maps/Kconfig
@@ -105,15 +105,6 @@ config MSP_FLASH_MAP_LIMIT
default "0x02000000"
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
tristate "Sun Microsystems userflash support"
depends on SPARC && MTD_CFI && PCI
diff --git a/drivers/mtd/maps/Makefile b/drivers/mtd/maps/Makefile
index 2dbc1be..8bae7f9 100644
--- a/drivers/mtd/maps/Makefile
+++ b/drivers/mtd/maps/Makefile
@@ -25,7 +25,6 @@ obj-$(CONFIG_MTD_OCTAGON) += octagon-5066.o
obj-$(CONFIG_MTD_PHYSMAP) += physmap.o
obj-$(CONFIG_MTD_PHYSMAP_OF) += physmap_of.o
obj-$(CONFIG_MTD_PMC_MSP_EVM) += pmcmsp-flash.o
-obj-$(CONFIG_MTD_PMC_MSP_RAMROOT)+= pmcmsp-ramroot.o
obj-$(CONFIG_MTD_PCMCIA) += pcmciamtd.o
obj-$(CONFIG_MTD_RPXLITE) += rpxlite.o
obj-$(CONFIG_MTD_TQM8XXL) += tqm8xxl.o
diff --git a/drivers/mtd/maps/pmcmsp-ramroot.c b/drivers/mtd/maps/pmcmsp-ramroot.c
deleted file mode 100644
index 30de5c0..0000000
--- a/drivers/mtd/maps/pmcmsp-ramroot.c
+++ /dev/null
@@ -1,104 +0,0 @@
-/*
- * Mapping of the rootfs in a physical region of memory
- *
- * Copyright (C) 2005-2007 PMC-Sierra Inc.
- * Author: Andrew Hughes, Andrew_Hughes@...-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);
--
1.6.2.4
--
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