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Commit 304aa411 authored by Adrian Bunk's avatar Adrian Bunk Committed by Linus Torvalds
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[PATCH] remove drivers/mtd/maps/ich2rom.c 

drivers/mtd/maps/ich2rom.c is completely unused because it was renamed to
drivers/mtd/maps/ichxrom.c.

This patch removes the stale ich2rom.c file.

This patch was already ACK'ed by David Woodhouse and Eric W. Biederman.
Signed-off-by: default avatarAdrian Bunk <bunk@stusta.de>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent ffaa6d5a
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Showing with 0 additions and 316 deletions
drivers/mtd/maps/ich2rom.c deleted 100644 → 0
View file @ ffaa6d5a
/*
* ich2rom.c
*
* Normal mappings of chips in physical memory
* $Id: ich2rom.c,v 1.7 2003/05/21 12:45:18 dwmw2 Exp $
*/
#include <linux/module.h>
#include <linux/types.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <asm/io.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/map.h>
#include <linux/config.h>
#include <linux/pci.h>
#include <linux/pci_ids.h>
#define RESERVE_MEM_REGION 0
#define ICH2_FWH_REGION_START 0xFF000000UL
#define ICH2_FWH_REGION_SIZE 0x01000000UL
#define BIOS_CNTL 0x4e
#define FWH_DEC_EN1 0xE3
#define FWH_DEC_EN2 0xF0
#define FWH_SEL1 0xE8
#define FWH_SEL2 0xEE
struct ich2rom_map_info {
struct map_info map;
struct mtd_info *mtd;
unsigned long window_addr;
};
static inline unsigned long addr(struct map_info *map, unsigned long ofs)
{
unsigned long offset;
offset = ((8*1024*1024) - map->size) + ofs;
if (offset >= (4*1024*1024)) {
offset += 0x400000;
}
return map->map_priv_1 + 0x400000 + offset;
}
static inline unsigned long dbg_addr(struct map_info *map, unsigned long addr)
{
return addr - map->map_priv_1 + ICH2_FWH_REGION_START;
}
static __u8 ich2rom_read8(struct map_info *map, unsigned long ofs)
{
return __raw_readb(addr(map, ofs));
}
static __u16 ich2rom_read16(struct map_info *map, unsigned long ofs)
{
return __raw_readw(addr(map, ofs));
}
static __u32 ich2rom_read32(struct map_info *map, unsigned long ofs)
{
return __raw_readl(addr(map, ofs));
}
static void ich2rom_copy_from(struct map_info *map, void *to, unsigned long from, ssize_t len)
{
memcpy_fromio(to, addr(map, from), len);
}
static void ich2rom_write8(struct map_info *map, __u8 d, unsigned long ofs)
{
__raw_writeb(d, addr(map,ofs));
mb();
}
static void ich2rom_write16(struct map_info *map, __u16 d, unsigned long ofs)
{
__raw_writew(d, addr(map, ofs));
mb();
}
static void ich2rom_write32(struct map_info *map, __u32 d, unsigned long ofs)
{
__raw_writel(d, addr(map, ofs));
mb();
}
static void ich2rom_copy_to(struct map_info *map, unsigned long to, const void *from, ssize_t len)
{
memcpy_toio(addr(map, to), from, len);
}
static struct ich2rom_map_info ich2rom_map = {
.map = {
.name = "ICH2 rom",
.phys = NO_XIP,
.size = 0,
.buswidth = 1,
.read8 = ich2rom_read8,
.read16 = ich2rom_read16,
.read32 = ich2rom_read32,
.copy_from = ich2rom_copy_from,
.write8 = ich2rom_write8,
.write16 = ich2rom_write16,
.write32 = ich2rom_write32,
.copy_to = ich2rom_copy_to,
/* Firmware hubs only use vpp when being programmed
* in a factory setting. So in place programming
* needs to use a different method.
*/
},
.mtd = NULL,
.window_addr = 0,
};
enum fwh_lock_state {
FWH_DENY_WRITE = 1,
FWH_IMMUTABLE = 2,
FWH_DENY_READ = 4,
};
static int ich2rom_set_lock_state(struct mtd_info *mtd, loff_t ofs, size_t len,
enum fwh_lock_state state)
{
struct map_info *map = mtd->priv;
unsigned long start = ofs;
unsigned long end = start + len -1;
/* FIXME do I need to guard against concurrency here? */
/* round down to 64K boundaries */
start = start & ~0xFFFF;
end = end & ~0xFFFF;
while (start <= end) {
unsigned long ctrl_addr;
ctrl_addr = addr(map, start) - 0x400000 + 2;
writeb(state, ctrl_addr);
start = start + 0x10000;
}
return 0;
}
static int ich2rom_lock(struct mtd_info *mtd, loff_t ofs, size_t len)
{
return ich2rom_set_lock_state(mtd, ofs, len, FWH_DENY_WRITE);
}
static int ich2rom_unlock(struct mtd_info *mtd, loff_t ofs, size_t len)
{
return ich2rom_set_lock_state(mtd, ofs, len, 0);
}
static int __devinit ich2rom_init_one (struct pci_dev *pdev,
const struct pci_device_id *ent)
{
u16 word;
struct ich2rom_map_info *info = &ich2rom_map;
unsigned long map_size;
/* For now I just handle the ich2 and I assume there
* are not a lot of resources up at the top of the address
* space. It is possible to handle other devices in the
* top 16MB but it is very painful. Also since
* you can only really attach a FWH to an ICH2 there
* a number of simplifications you can make.
*
* Also you can page firmware hubs if an 8MB window isn't enough
* but don't currently handle that case either.
*/
#if RESERVE_MEM_REGION
/* Some boards have this reserved and I haven't found a good work
* around to say I know what I'm doing!
*/
if (!request_mem_region(ICH2_FWH_REGION_START, ICH2_FWH_REGION_SIZE, "ich2rom")) {
printk(KERN_ERR "ich2rom: cannot reserve rom window\n");
goto err_out_none;
}
#endif /* RESERVE_MEM_REGION */
/* Enable writes through the rom window */
pci_read_config_word(pdev, BIOS_CNTL, &word);
if (!(word & 1) && (word & (1<<1))) {
/* The BIOS will generate an error if I enable
* this device, so don't even try.
*/
printk(KERN_ERR "ich2rom: firmware access control, I can't enable writes\n");
goto err_out_none;
}
pci_write_config_word(pdev, BIOS_CNTL, word | 1);
/* Map the firmware hub into my address space. */
/* Does this use to much virtual address space? */
info->window_addr = (unsigned long)ioremap(
ICH2_FWH_REGION_START, ICH2_FWH_REGION_SIZE);
if (!info->window_addr) {
printk(KERN_ERR "Failed to ioremap\n");
goto err_out_free_mmio_region;
}
/* For now assume the firmware has setup all relevant firmware
* windows. We don't have enough information to handle this case
* intelligently.
*/
/* FIXME select the firmware hub and enable a window to it. */
info->mtd = NULL;
info->map.map_priv_1 = info->window_addr;
map_size = ICH2_FWH_REGION_SIZE;
while(!info->mtd && (map_size > 0)) {
info->map.size = map_size;
info->mtd = do_map_probe("jedec_probe", &ich2rom_map.map);
map_size -= 512*1024;
}
if (!info->mtd) {
goto err_out_iounmap;
}
/* I know I can only be a firmware hub here so put
* in the special lock and unlock routines.
*/
info->mtd->lock = ich2rom_lock;
info->mtd->unlock = ich2rom_unlock;
info->mtd->owner = THIS_MODULE;
add_mtd_device(info->mtd);
return 0;
err_out_iounmap:
iounmap((void *)(info->window_addr));
err_out_free_mmio_region:
#if RESERVE_MEM_REGION
release_mem_region(ICH2_FWH_REGION_START, ICH2_FWH_REGION_SIZE);
#endif
err_out_none:
return -ENODEV;
}
static void __devexit ich2rom_remove_one (struct pci_dev *pdev)
{
struct ich2rom_map_info *info = &ich2rom_map;
u16 word;
del_mtd_device(info->mtd);
map_destroy(info->mtd);
info->mtd = NULL;
info->map.map_priv_1 = 0;
iounmap((void *)(info->window_addr));
info->window_addr = 0;
/* Disable writes through the rom window */
pci_read_config_word(pdev, BIOS_CNTL, &word);
pci_write_config_word(pdev, BIOS_CNTL, word & ~1);
#if RESERVE_MEM_REGION
release_mem_region(ICH2_FWH_REGION_START, ICH2_FWH_REGION_SIZE);
#endif
}
static struct pci_device_id ich2rom_pci_tbl[] = {
{ PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801BA_0,
PCI_ANY_ID, PCI_ANY_ID, },
{ PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_0,
PCI_ANY_ID, PCI_ANY_ID, },
{ PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_0,
PCI_ANY_ID, PCI_ANY_ID, },
{ 0, },
};
MODULE_DEVICE_TABLE(pci, ich2rom_pci_tbl);
#if 0
static struct pci_driver ich2rom_driver = {
.name = "ich2rom",
.id_table = ich2rom_pci_tbl,
.probe = ich2rom_init_one,
.remove = ich2rom_remove_one,
};
#endif
static struct pci_dev *mydev;
int __init init_ich2rom(void)
{
struct pci_dev *pdev;
struct pci_device_id *id;
pdev = NULL;
for(id = ich2rom_pci_tbl; id->vendor; id++) {
pdev = pci_find_device(id->vendor, id->device, NULL);
if (pdev) {
break;
}
}
if (pdev) {
mydev = pdev;
return ich2rom_init_one(pdev, &ich2rom_pci_tbl[0]);
}
return -ENXIO;
#if 0
return pci_module_init(&ich2rom_driver);
#endif
}
static void __exit cleanup_ich2rom(void)
{
ich2rom_remove_one(mydev);
}
module_init(init_ich2rom);
module_exit(cleanup_ich2rom);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Eric Biederman <ebiederman@lnxi.com>");
MODULE_DESCRIPTION("MTD map driver for BIOS chips on the ICH2 southbridge");
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