mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-21 16:29:59 +00:00
mtd: remove the ixp2000 map driver
This driver depends on CONFIG_IXP2000 which is not defined anywhere, which means this driver is dead. Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
This commit is contained in:
Artem Bityutskiy
David Woodhouse
parent
bece641c96
commit
b08a25ade2
3 changed files with 0 additions and 263 deletions
|
|
@ -297,15 +297,6 @@ config MTD_IXP4XX
|
|||
IXDP425 and Coyote. If you have an IXP4xx based board and
|
||||
would like to use the flash chips on it, say 'Y'.
|
||||
|
||||
config MTD_IXP2000
|
||||
tristate "CFI Flash device mapped on Intel IXP2000 based systems"
|
||||
depends on MTD_CFI && MTD_COMPLEX_MAPPINGS && ARCH_IXP2000
|
||||
help
|
||||
This enables MTD access to flash devices on platforms based
|
||||
on Intel's IXP2000 family of network processors. If you have an
|
||||
IXP2000 based board and would like to use the flash chips on it,
|
||||
say 'Y'.
|
||||
|
||||
config MTD_AUTCPU12
|
||||
bool "NV-RAM mapping AUTCPU12 board"
|
||||
depends on ARCH_AUTCPU12
|
||||
|
|
|
|||
|
|
@ -39,7 +39,6 @@ obj-$(CONFIG_MTD_NETtel) += nettel.o
|
|||
obj-$(CONFIG_MTD_SCB2_FLASH) += scb2_flash.o
|
||||
obj-$(CONFIG_MTD_H720X) += h720x-flash.o
|
||||
obj-$(CONFIG_MTD_IXP4XX) += ixp4xx.o
|
||||
obj-$(CONFIG_MTD_IXP2000) += ixp2000.o
|
||||
obj-$(CONFIG_MTD_PLATRAM) += plat-ram.o
|
||||
obj-$(CONFIG_MTD_INTEL_VR_NOR) += intel_vr_nor.o
|
||||
obj-$(CONFIG_MTD_BFIN_ASYNC) += bfin-async-flash.o
|
||||
|
|
|
|||
|
|
@ -1,253 +0,0 @@
|
|||
/*
|
||||
* drivers/mtd/maps/ixp2000.c
|
||||
*
|
||||
* Mapping for the Intel XScale IXP2000 based systems
|
||||
*
|
||||
* Copyright (C) 2002 Intel Corp.
|
||||
* Copyright (C) 2003-2004 MontaVista Software, Inc.
|
||||
*
|
||||
* Original Author: Naeem M Afzal <naeem.m.afzal@intel.com>
|
||||
* Maintainer: Deepak Saxena <dsaxena@plexity.net>
|
||||
*
|
||||
* 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.
|
||||
*
|
||||
*/
|
||||
|
||||
#include <linux/module.h>
|
||||
#include <linux/types.h>
|
||||
#include <linux/init.h>
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/string.h>
|
||||
#include <linux/slab.h>
|
||||
#include <linux/ioport.h>
|
||||
#include <linux/device.h>
|
||||
#include <linux/platform_device.h>
|
||||
|
||||
#include <linux/mtd/mtd.h>
|
||||
#include <linux/mtd/map.h>
|
||||
#include <linux/mtd/partitions.h>
|
||||
|
||||
#include <asm/io.h>
|
||||
#include <mach/hardware.h>
|
||||
#include <asm/mach/flash.h>
|
||||
|
||||
#include <linux/reboot.h>
|
||||
|
||||
struct ixp2000_flash_info {
|
||||
struct mtd_info *mtd;
|
||||
struct map_info map;
|
||||
struct resource *res;
|
||||
};
|
||||
|
||||
static inline unsigned long flash_bank_setup(struct map_info *map, unsigned long ofs)
|
||||
{
|
||||
unsigned long (*set_bank)(unsigned long) =
|
||||
(unsigned long(*)(unsigned long))map->map_priv_2;
|
||||
|
||||
return (set_bank ? set_bank(ofs) : ofs);
|
||||
}
|
||||
|
||||
#ifdef __ARMEB__
|
||||
/*
|
||||
* Rev A0 and A1 of IXP2400 silicon have a broken addressing unit which
|
||||
* causes the lower address bits to be XORed with 0x11 on 8 bit accesses
|
||||
* and XORed with 0x10 on 16 bit accesses. See the spec update, erratum 44.
|
||||
*/
|
||||
static int erratum44_workaround = 0;
|
||||
|
||||
static inline unsigned long address_fix8_write(unsigned long addr)
|
||||
{
|
||||
if (erratum44_workaround) {
|
||||
return (addr ^ 3);
|
||||
}
|
||||
return addr;
|
||||
}
|
||||
#else
|
||||
|
||||
#define address_fix8_write(x) (x)
|
||||
#endif
|
||||
|
||||
static map_word ixp2000_flash_read8(struct map_info *map, unsigned long ofs)
|
||||
{
|
||||
map_word val;
|
||||
|
||||
val.x[0] = *((u8 *)(map->map_priv_1 + flash_bank_setup(map, ofs)));
|
||||
return val;
|
||||
}
|
||||
|
||||
/*
|
||||
* We can't use the standard memcpy due to the broken SlowPort
|
||||
* address translation on rev A0 and A1 silicon and the fact that
|
||||
* we have banked flash.
|
||||
*/
|
||||
static void ixp2000_flash_copy_from(struct map_info *map, void *to,
|
||||
unsigned long from, ssize_t len)
|
||||
{
|
||||
from = flash_bank_setup(map, from);
|
||||
while(len--)
|
||||
*(__u8 *) to++ = *(__u8 *)(map->map_priv_1 + from++);
|
||||
}
|
||||
|
||||
static void ixp2000_flash_write8(struct map_info *map, map_word d, unsigned long ofs)
|
||||
{
|
||||
*(__u8 *) (address_fix8_write(map->map_priv_1 +
|
||||
flash_bank_setup(map, ofs))) = d.x[0];
|
||||
}
|
||||
|
||||
static void ixp2000_flash_copy_to(struct map_info *map, unsigned long to,
|
||||
const void *from, ssize_t len)
|
||||
{
|
||||
to = flash_bank_setup(map, to);
|
||||
while(len--) {
|
||||
unsigned long tmp = address_fix8_write(map->map_priv_1 + to++);
|
||||
*(__u8 *)(tmp) = *(__u8 *)(from++);
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
static int ixp2000_flash_remove(struct platform_device *dev)
|
||||
{
|
||||
struct flash_platform_data *plat = dev->dev.platform_data;
|
||||
struct ixp2000_flash_info *info = platform_get_drvdata(dev);
|
||||
|
||||
platform_set_drvdata(dev, NULL);
|
||||
|
||||
if(!info)
|
||||
return 0;
|
||||
|
||||
if (info->mtd) {
|
||||
mtd_device_unregister(info->mtd);
|
||||
map_destroy(info->mtd);
|
||||
}
|
||||
if (info->map.map_priv_1)
|
||||
iounmap((void *) info->map.map_priv_1);
|
||||
|
||||
if (info->res) {
|
||||
release_resource(info->res);
|
||||
kfree(info->res);
|
||||
}
|
||||
|
||||
if (plat->exit)
|
||||
plat->exit();
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
static int ixp2000_flash_probe(struct platform_device *dev)
|
||||
{
|
||||
static const char *probes[] = { "RedBoot", "cmdlinepart", NULL };
|
||||
struct ixp2000_flash_data *ixp_data = dev->dev.platform_data;
|
||||
struct flash_platform_data *plat;
|
||||
struct ixp2000_flash_info *info;
|
||||
unsigned long window_size;
|
||||
int err = -1;
|
||||
|
||||
if (!ixp_data)
|
||||
return -ENODEV;
|
||||
|
||||
plat = ixp_data->platform_data;
|
||||
if (!plat)
|
||||
return -ENODEV;
|
||||
|
||||
window_size = resource_size(dev->resource);
|
||||
dev_info(&dev->dev, "Probe of IXP2000 flash(%d banks x %dMiB)\n",
|
||||
ixp_data->nr_banks, ((u32)window_size >> 20));
|
||||
|
||||
if (plat->width != 1) {
|
||||
dev_err(&dev->dev, "IXP2000 MTD map only supports 8-bit mode, asking for %d\n",
|
||||
plat->width * 8);
|
||||
return -EIO;
|
||||
}
|
||||
|
||||
info = kzalloc(sizeof(struct ixp2000_flash_info), GFP_KERNEL);
|
||||
if(!info) {
|
||||
err = -ENOMEM;
|
||||
goto Error;
|
||||
}
|
||||
|
||||
platform_set_drvdata(dev, info);
|
||||
|
||||
/*
|
||||
* Tell the MTD layer we're not 1:1 mapped so that it does
|
||||
* not attempt to do a direct access on us.
|
||||
*/
|
||||
info->map.phys = NO_XIP;
|
||||
|
||||
info->map.size = ixp_data->nr_banks * window_size;
|
||||
info->map.bankwidth = 1;
|
||||
|
||||
/*
|
||||
* map_priv_2 is used to store a ptr to the bank_setup routine
|
||||
*/
|
||||
info->map.map_priv_2 = (unsigned long) ixp_data->bank_setup;
|
||||
|
||||
info->map.name = dev_name(&dev->dev);
|
||||
info->map.read = ixp2000_flash_read8;
|
||||
info->map.write = ixp2000_flash_write8;
|
||||
info->map.copy_from = ixp2000_flash_copy_from;
|
||||
info->map.copy_to = ixp2000_flash_copy_to;
|
||||
|
||||
info->res = request_mem_region(dev->resource->start,
|
||||
resource_size(dev->resource),
|
||||
dev_name(&dev->dev));
|
||||
if (!info->res) {
|
||||
dev_err(&dev->dev, "Could not reserve memory region\n");
|
||||
err = -ENOMEM;
|
||||
goto Error;
|
||||
}
|
||||
|
||||
info->map.map_priv_1 =
|
||||
(unsigned long)ioremap(dev->resource->start,
|
||||
resource_size(dev->resource));
|
||||
if (!info->map.map_priv_1) {
|
||||
dev_err(&dev->dev, "Failed to ioremap flash region\n");
|
||||
err = -EIO;
|
||||
goto Error;
|
||||
}
|
||||
|
||||
#if defined(__ARMEB__)
|
||||
/*
|
||||
* Enable erratum 44 workaround for NPUs with broken slowport
|
||||
*/
|
||||
|
||||
erratum44_workaround = ixp2000_has_broken_slowport();
|
||||
dev_info(&dev->dev, "Erratum 44 workaround %s\n",
|
||||
erratum44_workaround ? "enabled" : "disabled");
|
||||
#endif
|
||||
|
||||
info->mtd = do_map_probe(plat->map_name, &info->map);
|
||||
if (!info->mtd) {
|
||||
dev_err(&dev->dev, "map_probe failed\n");
|
||||
err = -ENXIO;
|
||||
goto Error;
|
||||
}
|
||||
info->mtd->owner = THIS_MODULE;
|
||||
|
||||
err = mtd_device_parse_register(info->mtd, probes, NULL, NULL, 0);
|
||||
if (err)
|
||||
goto Error;
|
||||
|
||||
return 0;
|
||||
|
||||
Error:
|
||||
ixp2000_flash_remove(dev);
|
||||
return err;
|
||||
}
|
||||
|
||||
static struct platform_driver ixp2000_flash_driver = {
|
||||
.probe = ixp2000_flash_probe,
|
||||
.remove = ixp2000_flash_remove,
|
||||
.driver = {
|
||||
.name = "IXP2000-Flash",
|
||||
.owner = THIS_MODULE,
|
||||
},
|
||||
};
|
||||
|
||||
module_platform_driver(ixp2000_flash_driver);
|
||||
|
||||
MODULE_LICENSE("GPL");
|
||||
MODULE_AUTHOR("Deepak Saxena <dsaxena@plexity.net>");
|
||||
MODULE_ALIAS("platform:IXP2000-Flash");
|
||||
Loading…
Reference in a new issue