patch-2.4.6 linux/drivers/mtd/nora.c
Next file: linux/drivers/mtd/octagon-5066.c
Previous file: linux/drivers/mtd/nftlmount.c
Back to the patch index
Back to the overall index
- Lines: 209
- Date:
Wed Dec 31 16:00:00 1969
- Orig file:
v2.4.5/linux/drivers/mtd/nora.c
- Orig date:
Mon Dec 11 14:57:58 2000
diff -u --recursive --new-file v2.4.5/linux/drivers/mtd/nora.c linux/drivers/mtd/nora.c
@@ -1,208 +0,0 @@
-/*
- * $Id: nora.c,v 1.17 2000/12/03 19:32:21 dwmw2 Exp $
- *
- * This is so simple I love it.
- */
-
-#include <linux/module.h>
-#include <linux/types.h>
-#include <linux/kernel.h>
-
-#include <linux/mtd/mtd.h>
-#include <linux/mtd/map.h>
-
-
-#define WINDOW_ADDR 0xd0000000
-#define WINDOW_SIZE 0x04000000
-
-static struct mtd_info *mymtd;
-
-__u8 nora_read8(struct map_info *map, unsigned long ofs)
-{
- return *(__u8 *)(WINDOW_ADDR + ofs);
-}
-
-__u16 nora_read16(struct map_info *map, unsigned long ofs)
-{
- return *(__u16 *)(WINDOW_ADDR + ofs);
-}
-
-__u32 nora_read32(struct map_info *map, unsigned long ofs)
-{
- return *(__u32 *)(WINDOW_ADDR + ofs);
-}
-
-void nora_copy_from(struct map_info *map, void *to, unsigned long from, ssize_t len)
-{
- memcpy(to, (void *)(WINDOW_ADDR + from), len);
-}
-
-void nora_write8(struct map_info *map, __u8 d, unsigned long adr)
-{
- *(__u8 *)(WINDOW_ADDR + adr) = d;
-}
-
-void nora_write16(struct map_info *map, __u16 d, unsigned long adr)
-{
- *(__u16 *)(WINDOW_ADDR + adr) = d;
-}
-
-void nora_write32(struct map_info *map, __u32 d, unsigned long adr)
-{
- *(__u32 *)(WINDOW_ADDR + adr) = d;
-}
-
-void nora_copy_to(struct map_info *map, unsigned long to, const void *from, ssize_t len)
-{
- memcpy((void *)(WINDOW_ADDR + to), from, len);
-}
-
-struct map_info nora_map = {
- name: "NORA",
- size: WINDOW_SIZE,
- buswidth: 2,
- read8: nora_read8,
- read16: nora_read16,
- read32: nora_read32,
- copy_from: nora_copy_from,
- write8: nora_write8,
- write16: nora_write16,
- write32: nora_write32,
- copy_to: nora_copy_to
-};
-
-
-static int nora_mtd_read (struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, u_char *buf)
-{
- return mymtd->read(mymtd, from + (unsigned long)mtd->priv, len, retlen, buf);
-}
-
-static int nora_mtd_write(struct mtd_info *mtd, loff_t to, size_t len, size_t *retlen, const u_char *buf)
-{
- return mymtd->write(mymtd, to + (unsigned long)mtd->priv, len, retlen, buf);
-}
-
-static int nora_mtd_erase (struct mtd_info *mtd, struct erase_info *instr)
-{
- instr->addr += (unsigned long)mtd->priv;
- return mymtd->erase(mymtd, instr);
-}
-
-static void nora_mtd_sync (struct mtd_info *mtd)
-{
- mymtd->sync(mymtd);
-}
-
-static int nora_mtd_suspend (struct mtd_info *mtd)
-{
- return mymtd->suspend(mymtd);
-}
-
-static void nora_mtd_resume (struct mtd_info *mtd)
-{
- mymtd->resume(mymtd);
-}
-
-
-static struct mtd_info nora_mtds[4] = { /* boot, kernel, ramdisk, fs */
- {
- type: MTD_NORFLASH,
- flags: MTD_CAP_NORFLASH,
- size: 0x60000,
- erasesize: 0x20000,
- name: "NORA boot firmware",
- module: THIS_MODULE,
- erase: nora_mtd_erase,
- read: nora_mtd_read,
- write: nora_mtd_write,
- suspend: nora_mtd_suspend,
- resume: nora_mtd_resume,
- sync: nora_mtd_sync,
- priv: (void *)0
- },
- {
- type: MTD_NORFLASH,
- flags: MTD_CAP_NORFLASH,
- size: 0x0a0000,
- erasesize: 0x20000,
- name: "NORA kernel",
- module: THIS_MODULE,
- erase: nora_mtd_erase,
- read: nora_mtd_read,
- write: nora_mtd_write,
- suspend: nora_mtd_suspend,
- resume: nora_mtd_resume,
- sync: nora_mtd_sync,
- priv: (void *)0x60000
- },
- {
- type: MTD_NORFLASH,
- flags: MTD_CAP_NORFLASH,
- size: 0x900000,
- erasesize: 0x20000,
- name: "NORA root filesystem",
- module: THIS_MODULE,
- erase: nora_mtd_erase,
- read: nora_mtd_read,
- write: nora_mtd_write,
- suspend: nora_mtd_suspend,
- resume: nora_mtd_resume,
- sync: nora_mtd_sync,
- priv: (void *)0x100000
- },
- {
- type: MTD_NORFLASH,
- flags: MTD_CAP_NORFLASH,
- size: 0x1600000,
- erasesize: 0x20000,
- name: "NORA second filesystem",
- module: THIS_MODULE,
- erase: nora_mtd_erase,
- read: nora_mtd_read,
- write: nora_mtd_write,
- suspend: nora_mtd_suspend,
- resume: nora_mtd_resume,
- sync: nora_mtd_sync,
- priv: (void *)0xa00000
- }
-};
-
-
-#if LINUX_VERSION_CODE < 0x20212 && defined(MODULE)
-#define init_nora init_module
-#define cleanup_nora cleanup_module
-#endif
-
-int __init init_nora(void)
-{
- printk(KERN_NOTICE "nora flash device: %x at %x\n", WINDOW_SIZE, WINDOW_ADDR);
-
- mymtd = do_cfi_probe(&nora_map);
- if (mymtd) {
-#ifdef MODULE
- mymtd->module = &__this_module;
-#endif
-
- add_mtd_device(&nora_mtds[2]);
- add_mtd_device(&nora_mtds[0]);
- add_mtd_device(&nora_mtds[1]);
- add_mtd_device(&nora_mtds[3]);
- return 0;
- }
-
- return -ENXIO;
-}
-
-static void __exit cleanup_nora(void)
-{
- if (mymtd) {
- del_mtd_device(&nora_mtds[3]);
- del_mtd_device(&nora_mtds[1]);
- del_mtd_device(&nora_mtds[0]);
- del_mtd_device(&nora_mtds[2]);
- map_destroy(mymtd);
- }
-}
-
-module_init(init_nora);
-module_exit(cleanup_nora);
FUNET's LINUX-ADM group, linux-adm@nic.funet.fi
TCL-scripts by Sam Shen (who was at: slshen@lbl.gov)