[2.6 patch] remove drivers/mtd/maps/ich2rom.c
Adrian Bunk
bunk at stusta.de
Thu Feb 24 06:11:25 EST 2005
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.
Signed-off-by: Adrian Bunk <bunk at stusta.de>
---
drivers/mtd/maps/ich2rom.c | 316 -------------------------------------
1 files changed, 316 deletions(-)
--- linux-2.6.11-rc4-mm1-full/drivers/mtd/maps/ich2rom.c 2004-12-24 22:35:49.000000000 +0100
+++ /dev/null 2004-11-25 03:16:25.000000000 +0100
@@ -1,316 +0,0 @@
-/*
- * 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 at lnxi.com>");
-MODULE_DESCRIPTION("MTD map driver for BIOS chips on the ICH2 southbridge");
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