remove drivers/mtd/maps/ich2rom.c

@@ -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 <[email protected]>");
-MODULE_DESCRIPTION("MTD map driver for BIOS chips on the ICH2 southbridge");