Add the rt linux 4.1.3-rt3 as base
[kvmfornfv.git] / kernel / drivers / mtd / maps / pcmciamtd.c
diff --git a/kernel/drivers/mtd/maps/pcmciamtd.c b/kernel/drivers/mtd/maps/pcmciamtd.c
new file mode 100644 (file)
index 0000000..af747af
--- /dev/null
@@ -0,0 +1,753 @@
+/*
+ * pcmciamtd.c - MTD driver for PCMCIA flash memory cards
+ *
+ * Author: Simon Evans <spse@secret.org.uk>
+ *
+ * Copyright (C) 2002 Simon Evans
+ *
+ * Licence: GPL
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/timer.h>
+#include <linux/init.h>
+#include <asm/io.h>
+
+#include <pcmcia/cistpl.h>
+#include <pcmcia/ds.h>
+
+#include <linux/mtd/map.h>
+#include <linux/mtd/mtd.h>
+
+#define info(format, arg...) printk(KERN_INFO "pcmciamtd: " format "\n" , ## arg)
+
+#define DRIVER_DESC    "PCMCIA Flash memory card driver"
+
+/* Size of the PCMCIA address space: 26 bits = 64 MB */
+#define MAX_PCMCIA_ADDR        0x4000000
+
+struct pcmciamtd_dev {
+       struct pcmcia_device    *p_dev;
+       caddr_t         win_base;       /* ioremapped address of PCMCIA window */
+       unsigned int    win_size;       /* size of window */
+       unsigned int    offset;         /* offset into card the window currently points at */
+       struct map_info pcmcia_map;
+       struct mtd_info *mtd_info;
+       int             vpp;
+       char            mtd_name[sizeof(struct cistpl_vers_1_t)];
+};
+
+
+/* Module parameters */
+
+/* 2 = do 16-bit transfers, 1 = do 8-bit transfers */
+static int bankwidth = 2;
+
+/* Speed of memory accesses, in ns */
+static int mem_speed;
+
+/* Force the size of an SRAM card */
+static int force_size;
+
+/* Force Vpp */
+static int vpp;
+
+/* Set Vpp */
+static int setvpp;
+
+/* Force card to be treated as FLASH, ROM or RAM */
+static int mem_type;
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Simon Evans <spse@secret.org.uk>");
+MODULE_DESCRIPTION(DRIVER_DESC);
+module_param(bankwidth, int, 0);
+MODULE_PARM_DESC(bankwidth, "Set bankwidth (1=8 bit, 2=16 bit, default=2)");
+module_param(mem_speed, int, 0);
+MODULE_PARM_DESC(mem_speed, "Set memory access speed in ns");
+module_param(force_size, int, 0);
+MODULE_PARM_DESC(force_size, "Force size of card in MiB (1-64)");
+module_param(setvpp, int, 0);
+MODULE_PARM_DESC(setvpp, "Set Vpp (0=Never, 1=On writes, 2=Always on, default=0)");
+module_param(vpp, int, 0);
+MODULE_PARM_DESC(vpp, "Vpp value in 1/10ths eg 33=3.3V 120=12V (Dangerous)");
+module_param(mem_type, int, 0);
+MODULE_PARM_DESC(mem_type, "Set Memory type (0=Flash, 1=RAM, 2=ROM, default=0)");
+
+
+/* read/write{8,16} copy_{from,to} routines with window remapping
+ * to access whole card
+ */
+static caddr_t remap_window(struct map_info *map, unsigned long to)
+{
+       struct pcmciamtd_dev *dev = (struct pcmciamtd_dev *)map->map_priv_1;
+       struct resource *win = (struct resource *) map->map_priv_2;
+       unsigned int offset;
+       int ret;
+
+       if (!pcmcia_dev_present(dev->p_dev)) {
+               pr_debug("device removed\n");
+               return NULL;
+       }
+
+       offset = to & ~(dev->win_size-1);
+       if (offset != dev->offset) {
+               pr_debug("Remapping window from 0x%8.8x to 0x%8.8x\n",
+                     dev->offset, offset);
+               ret = pcmcia_map_mem_page(dev->p_dev, win, offset);
+               if (ret != 0)
+                       return NULL;
+               dev->offset = offset;
+       }
+       return dev->win_base + (to & (dev->win_size-1));
+}
+
+
+static map_word pcmcia_read8_remap(struct map_info *map, unsigned long ofs)
+{
+       caddr_t addr;
+       map_word d = {{0}};
+
+       addr = remap_window(map, ofs);
+       if(!addr)
+               return d;
+
+       d.x[0] = readb(addr);
+       pr_debug("ofs = 0x%08lx (%p) data = 0x%02lx\n", ofs, addr, d.x[0]);
+       return d;
+}
+
+
+static map_word pcmcia_read16_remap(struct map_info *map, unsigned long ofs)
+{
+       caddr_t addr;
+       map_word d = {{0}};
+
+       addr = remap_window(map, ofs);
+       if(!addr)
+               return d;
+
+       d.x[0] = readw(addr);
+       pr_debug("ofs = 0x%08lx (%p) data = 0x%04lx\n", ofs, addr, d.x[0]);
+       return d;
+}
+
+
+static void pcmcia_copy_from_remap(struct map_info *map, void *to, unsigned long from, ssize_t len)
+{
+       struct pcmciamtd_dev *dev = (struct pcmciamtd_dev *)map->map_priv_1;
+       unsigned long win_size = dev->win_size;
+
+       pr_debug("to = %p from = %lu len = %zd\n", to, from, len);
+       while(len) {
+               int toread = win_size - (from & (win_size-1));
+               caddr_t addr;
+
+               if(toread > len)
+                       toread = len;
+
+               addr = remap_window(map, from);
+               if(!addr)
+                       return;
+
+               pr_debug("memcpy from %p to %p len = %d\n", addr, to, toread);
+               memcpy_fromio(to, addr, toread);
+               len -= toread;
+               to += toread;
+               from += toread;
+       }
+}
+
+
+static void pcmcia_write8_remap(struct map_info *map, map_word d, unsigned long adr)
+{
+       caddr_t addr = remap_window(map, adr);
+
+       if(!addr)
+               return;
+
+       pr_debug("adr = 0x%08lx (%p)  data = 0x%02lx\n", adr, addr, d.x[0]);
+       writeb(d.x[0], addr);
+}
+
+
+static void pcmcia_write16_remap(struct map_info *map, map_word d, unsigned long adr)
+{
+       caddr_t addr = remap_window(map, adr);
+       if(!addr)
+               return;
+
+       pr_debug("adr = 0x%08lx (%p)  data = 0x%04lx\n", adr, addr, d.x[0]);
+       writew(d.x[0], addr);
+}
+
+
+static void pcmcia_copy_to_remap(struct map_info *map, unsigned long to, const void *from, ssize_t len)
+{
+       struct pcmciamtd_dev *dev = (struct pcmciamtd_dev *)map->map_priv_1;
+       unsigned long win_size = dev->win_size;
+
+       pr_debug("to = %lu from = %p len = %zd\n", to, from, len);
+       while(len) {
+               int towrite = win_size - (to & (win_size-1));
+               caddr_t addr;
+
+               if(towrite > len)
+                       towrite = len;
+
+               addr = remap_window(map, to);
+               if(!addr)
+                       return;
+
+               pr_debug("memcpy from %p to %p len = %d\n", from, addr, towrite);
+               memcpy_toio(addr, from, towrite);
+               len -= towrite;
+               to += towrite;
+               from += towrite;
+       }
+}
+
+
+/* read/write{8,16} copy_{from,to} routines with direct access */
+
+#define DEV_REMOVED(x)  (!(pcmcia_dev_present(((struct pcmciamtd_dev *)map->map_priv_1)->p_dev)))
+
+static map_word pcmcia_read8(struct map_info *map, unsigned long ofs)
+{
+       caddr_t win_base = (caddr_t)map->map_priv_2;
+       map_word d = {{0}};
+
+       if(DEV_REMOVED(map))
+               return d;
+
+       d.x[0] = readb(win_base + ofs);
+       pr_debug("ofs = 0x%08lx (%p) data = 0x%02lx\n",
+             ofs, win_base + ofs, d.x[0]);
+       return d;
+}
+
+
+static map_word pcmcia_read16(struct map_info *map, unsigned long ofs)
+{
+       caddr_t win_base = (caddr_t)map->map_priv_2;
+       map_word d = {{0}};
+
+       if(DEV_REMOVED(map))
+               return d;
+
+       d.x[0] = readw(win_base + ofs);
+       pr_debug("ofs = 0x%08lx (%p) data = 0x%04lx\n",
+             ofs, win_base + ofs, d.x[0]);
+       return d;
+}
+
+
+static void pcmcia_copy_from(struct map_info *map, void *to, unsigned long from, ssize_t len)
+{
+       caddr_t win_base = (caddr_t)map->map_priv_2;
+
+       if(DEV_REMOVED(map))
+               return;
+
+       pr_debug("to = %p from = %lu len = %zd\n", to, from, len);
+       memcpy_fromio(to, win_base + from, len);
+}
+
+
+static void pcmcia_write8(struct map_info *map, map_word d, unsigned long adr)
+{
+       caddr_t win_base = (caddr_t)map->map_priv_2;
+
+       if(DEV_REMOVED(map))
+               return;
+
+       pr_debug("adr = 0x%08lx (%p)  data = 0x%02lx\n",
+             adr, win_base + adr, d.x[0]);
+       writeb(d.x[0], win_base + adr);
+}
+
+
+static void pcmcia_write16(struct map_info *map, map_word d, unsigned long adr)
+{
+       caddr_t win_base = (caddr_t)map->map_priv_2;
+
+       if(DEV_REMOVED(map))
+               return;
+
+       pr_debug("adr = 0x%08lx (%p)  data = 0x%04lx\n",
+             adr, win_base + adr, d.x[0]);
+       writew(d.x[0], win_base + adr);
+}
+
+
+static void pcmcia_copy_to(struct map_info *map, unsigned long to, const void *from, ssize_t len)
+{
+       caddr_t win_base = (caddr_t)map->map_priv_2;
+
+       if(DEV_REMOVED(map))
+               return;
+
+       pr_debug("to = %lu from = %p len = %zd\n", to, from, len);
+       memcpy_toio(win_base + to, from, len);
+}
+
+
+static DEFINE_SPINLOCK(pcmcia_vpp_lock);
+static int pcmcia_vpp_refcnt;
+static void pcmciamtd_set_vpp(struct map_info *map, int on)
+{
+       struct pcmciamtd_dev *dev = (struct pcmciamtd_dev *)map->map_priv_1;
+       struct pcmcia_device *link = dev->p_dev;
+       unsigned long flags;
+
+       pr_debug("dev = %p on = %d vpp = %d\n\n", dev, on, dev->vpp);
+       spin_lock_irqsave(&pcmcia_vpp_lock, flags);
+       if (on) {
+               if (++pcmcia_vpp_refcnt == 1)   /* first nested 'on' */
+                       pcmcia_fixup_vpp(link, dev->vpp);
+       } else {
+               if (--pcmcia_vpp_refcnt == 0)   /* last nested 'off' */
+                       pcmcia_fixup_vpp(link, 0);
+       }
+       spin_unlock_irqrestore(&pcmcia_vpp_lock, flags);
+}
+
+
+static void pcmciamtd_release(struct pcmcia_device *link)
+{
+       struct pcmciamtd_dev *dev = link->priv;
+
+       pr_debug("link = 0x%p\n", link);
+
+       if (link->resource[2]->end) {
+               if(dev->win_base) {
+                       iounmap(dev->win_base);
+                       dev->win_base = NULL;
+               }
+       }
+       pcmcia_disable_device(link);
+}
+
+
+static int pcmciamtd_cistpl_format(struct pcmcia_device *p_dev,
+                               tuple_t *tuple,
+                               void *priv_data)
+{
+       cisparse_t parse;
+
+       if (!pcmcia_parse_tuple(tuple, &parse)) {
+               cistpl_format_t *t = &parse.format;
+               (void)t; /* Shut up, gcc */
+               pr_debug("Format type: %u, Error Detection: %u, offset = %u, length =%u\n",
+                       t->type, t->edc, t->offset, t->length);
+       }
+       return -ENOSPC;
+}
+
+static int pcmciamtd_cistpl_jedec(struct pcmcia_device *p_dev,
+                               tuple_t *tuple,
+                               void *priv_data)
+{
+       cisparse_t parse;
+       int i;
+
+       if (!pcmcia_parse_tuple(tuple, &parse)) {
+               cistpl_jedec_t *t = &parse.jedec;
+               for (i = 0; i < t->nid; i++)
+                       pr_debug("JEDEC: 0x%02x 0x%02x\n",
+                             t->id[i].mfr, t->id[i].info);
+       }
+       return -ENOSPC;
+}
+
+static int pcmciamtd_cistpl_device(struct pcmcia_device *p_dev,
+                               tuple_t *tuple,
+                               void *priv_data)
+{
+       struct pcmciamtd_dev *dev = priv_data;
+       cisparse_t parse;
+       cistpl_device_t *t = &parse.device;
+       int i;
+
+       if (pcmcia_parse_tuple(tuple, &parse))
+               return -EINVAL;
+
+       pr_debug("Common memory:\n");
+       dev->pcmcia_map.size = t->dev[0].size;
+       /* from here on: DEBUG only */
+       for (i = 0; i < t->ndev; i++) {
+               pr_debug("Region %d, type = %u\n", i, t->dev[i].type);
+               pr_debug("Region %d, wp = %u\n", i, t->dev[i].wp);
+               pr_debug("Region %d, speed = %u ns\n", i, t->dev[i].speed);
+               pr_debug("Region %d, size = %u bytes\n", i, t->dev[i].size);
+       }
+       return 0;
+}
+
+static int pcmciamtd_cistpl_geo(struct pcmcia_device *p_dev,
+                               tuple_t *tuple,
+                               void *priv_data)
+{
+       struct pcmciamtd_dev *dev = priv_data;
+       cisparse_t parse;
+       cistpl_device_geo_t *t = &parse.device_geo;
+       int i;
+
+       if (pcmcia_parse_tuple(tuple, &parse))
+               return -EINVAL;
+
+       dev->pcmcia_map.bankwidth = t->geo[0].buswidth;
+       /* from here on: DEBUG only */
+       for (i = 0; i < t->ngeo; i++) {
+               pr_debug("region: %d bankwidth = %u\n", i, t->geo[i].buswidth);
+               pr_debug("region: %d erase_block = %u\n", i, t->geo[i].erase_block);
+               pr_debug("region: %d read_block = %u\n", i, t->geo[i].read_block);
+               pr_debug("region: %d write_block = %u\n", i, t->geo[i].write_block);
+               pr_debug("region: %d partition = %u\n", i, t->geo[i].partition);
+               pr_debug("region: %d interleave = %u\n", i, t->geo[i].interleave);
+       }
+       return 0;
+}
+
+
+static void card_settings(struct pcmciamtd_dev *dev, struct pcmcia_device *p_dev, int *new_name)
+{
+       int i;
+
+       if (p_dev->prod_id[0]) {
+               dev->mtd_name[0] = '\0';
+               for (i = 0; i < 4; i++) {
+                       if (i)
+                               strcat(dev->mtd_name, " ");
+                       if (p_dev->prod_id[i])
+                               strcat(dev->mtd_name, p_dev->prod_id[i]);
+               }
+               pr_debug("Found name: %s\n", dev->mtd_name);
+       }
+
+       pcmcia_loop_tuple(p_dev, CISTPL_FORMAT, pcmciamtd_cistpl_format, NULL);
+       pcmcia_loop_tuple(p_dev, CISTPL_JEDEC_C, pcmciamtd_cistpl_jedec, NULL);
+       pcmcia_loop_tuple(p_dev, CISTPL_DEVICE, pcmciamtd_cistpl_device, dev);
+       pcmcia_loop_tuple(p_dev, CISTPL_DEVICE_GEO, pcmciamtd_cistpl_geo, dev);
+
+       if(!dev->pcmcia_map.size)
+               dev->pcmcia_map.size = MAX_PCMCIA_ADDR;
+
+       if(!dev->pcmcia_map.bankwidth)
+               dev->pcmcia_map.bankwidth = 2;
+
+       if(force_size) {
+               dev->pcmcia_map.size = force_size << 20;
+               pr_debug("size forced to %dM\n", force_size);
+       }
+
+       if(bankwidth) {
+               dev->pcmcia_map.bankwidth = bankwidth;
+               pr_debug("bankwidth forced to %d\n", bankwidth);
+       }
+
+       dev->pcmcia_map.name = dev->mtd_name;
+       if(!dev->mtd_name[0]) {
+               strcpy(dev->mtd_name, "PCMCIA Memory card");
+               *new_name = 1;
+       }
+
+       pr_debug("Device: Size: %lu Width:%d Name: %s\n",
+             dev->pcmcia_map.size,
+             dev->pcmcia_map.bankwidth << 3, dev->mtd_name);
+}
+
+
+static int pcmciamtd_config(struct pcmcia_device *link)
+{
+       struct pcmciamtd_dev *dev = link->priv;
+       struct mtd_info *mtd = NULL;
+       int ret;
+       int i, j = 0;
+       static char *probes[] = { "jedec_probe", "cfi_probe" };
+       int new_name = 0;
+
+       pr_debug("link=0x%p\n", link);
+
+       card_settings(dev, link, &new_name);
+
+       dev->pcmcia_map.phys = NO_XIP;
+       dev->pcmcia_map.copy_from = pcmcia_copy_from_remap;
+       dev->pcmcia_map.copy_to = pcmcia_copy_to_remap;
+       if (dev->pcmcia_map.bankwidth == 1) {
+               dev->pcmcia_map.read = pcmcia_read8_remap;
+               dev->pcmcia_map.write = pcmcia_write8_remap;
+       } else {
+               dev->pcmcia_map.read = pcmcia_read16_remap;
+               dev->pcmcia_map.write = pcmcia_write16_remap;
+       }
+       if(setvpp == 1)
+               dev->pcmcia_map.set_vpp = pcmciamtd_set_vpp;
+
+       /* Request a memory window for PCMCIA. Some architeures can map windows
+        * up to the maximum that PCMCIA can support (64MiB) - this is ideal and
+        * we aim for a window the size of the whole card - otherwise we try
+        * smaller windows until we succeed
+        */
+
+       link->resource[2]->flags |=  WIN_MEMORY_TYPE_CM | WIN_ENABLE;
+       link->resource[2]->flags |= (dev->pcmcia_map.bankwidth == 1) ?
+                                       WIN_DATA_WIDTH_8 : WIN_DATA_WIDTH_16;
+       link->resource[2]->start = 0;
+       link->resource[2]->end = (force_size) ? force_size << 20 :
+                                       MAX_PCMCIA_ADDR;
+       dev->win_size = 0;
+
+       do {
+               int ret;
+               pr_debug("requesting window with size = %luKiB memspeed = %d\n",
+                       (unsigned long) resource_size(link->resource[2]) >> 10,
+                       mem_speed);
+               ret = pcmcia_request_window(link, link->resource[2], mem_speed);
+               pr_debug("ret = %d dev->win_size = %d\n", ret, dev->win_size);
+               if(ret) {
+                       j++;
+                       link->resource[2]->start = 0;
+                       link->resource[2]->end = (force_size) ?
+                                       force_size << 20 : MAX_PCMCIA_ADDR;
+                       link->resource[2]->end >>= j;
+               } else {
+                       pr_debug("Got window of size %luKiB\n", (unsigned long)
+                               resource_size(link->resource[2]) >> 10);
+                       dev->win_size = resource_size(link->resource[2]);
+                       break;
+               }
+       } while (link->resource[2]->end >= 0x1000);
+
+       pr_debug("dev->win_size = %d\n", dev->win_size);
+
+       if(!dev->win_size) {
+               dev_err(&dev->p_dev->dev, "Cannot allocate memory window\n");
+               pcmciamtd_release(link);
+               return -ENODEV;
+       }
+       pr_debug("Allocated a window of %dKiB\n", dev->win_size >> 10);
+
+       /* Get write protect status */
+       dev->win_base = ioremap(link->resource[2]->start,
+                               resource_size(link->resource[2]));
+       if(!dev->win_base) {
+               dev_err(&dev->p_dev->dev, "ioremap(%pR) failed\n",
+                       link->resource[2]);
+               pcmciamtd_release(link);
+               return -ENODEV;
+       }
+       pr_debug("mapped window dev = %p @ %pR, base = %p\n",
+             dev, link->resource[2], dev->win_base);
+
+       dev->offset = 0;
+       dev->pcmcia_map.map_priv_1 = (unsigned long)dev;
+       dev->pcmcia_map.map_priv_2 = (unsigned long)link->resource[2];
+
+       dev->vpp = (vpp) ? vpp : link->socket->socket.Vpp;
+       if(setvpp == 2) {
+               link->vpp = dev->vpp;
+       } else {
+               link->vpp = 0;
+       }
+
+       link->config_index = 0;
+       pr_debug("Setting Configuration\n");
+       ret = pcmcia_enable_device(link);
+       if (ret != 0) {
+               if (dev->win_base) {
+                       iounmap(dev->win_base);
+                       dev->win_base = NULL;
+               }
+               return -ENODEV;
+       }
+
+       if(mem_type == 1) {
+               mtd = do_map_probe("map_ram", &dev->pcmcia_map);
+       } else if(mem_type == 2) {
+               mtd = do_map_probe("map_rom", &dev->pcmcia_map);
+       } else {
+               for(i = 0; i < ARRAY_SIZE(probes); i++) {
+                       pr_debug("Trying %s\n", probes[i]);
+                       mtd = do_map_probe(probes[i], &dev->pcmcia_map);
+                       if(mtd)
+                               break;
+
+                       pr_debug("FAILED: %s\n", probes[i]);
+               }
+       }
+
+       if(!mtd) {
+               pr_debug("Can not find an MTD\n");
+               pcmciamtd_release(link);
+               return -ENODEV;
+       }
+
+       dev->mtd_info = mtd;
+       mtd->owner = THIS_MODULE;
+
+       if(new_name) {
+               int size = 0;
+               char unit = ' ';
+               /* Since we are using a default name, make it better by adding
+                * in the size
+                */
+               if(mtd->size < 1048576) { /* <1MiB in size, show size in KiB */
+                       size = mtd->size >> 10;
+                       unit = 'K';
+               } else {
+                       size = mtd->size >> 20;
+                       unit = 'M';
+               }
+               snprintf(dev->mtd_name, sizeof(dev->mtd_name), "%d%ciB %s", size, unit, "PCMCIA Memory card");
+       }
+
+       /* If the memory found is fits completely into the mapped PCMCIA window,
+          use the faster non-remapping read/write functions */
+       if(mtd->size <= dev->win_size) {
+               pr_debug("Using non remapping memory functions\n");
+               dev->pcmcia_map.map_priv_2 = (unsigned long)dev->win_base;
+               if (dev->pcmcia_map.bankwidth == 1) {
+                       dev->pcmcia_map.read = pcmcia_read8;
+                       dev->pcmcia_map.write = pcmcia_write8;
+               } else {
+                       dev->pcmcia_map.read = pcmcia_read16;
+                       dev->pcmcia_map.write = pcmcia_write16;
+               }
+               dev->pcmcia_map.copy_from = pcmcia_copy_from;
+               dev->pcmcia_map.copy_to = pcmcia_copy_to;
+       }
+
+       if (mtd_device_register(mtd, NULL, 0)) {
+               map_destroy(mtd);
+               dev->mtd_info = NULL;
+               dev_err(&dev->p_dev->dev,
+                       "Could not register the MTD device\n");
+               pcmciamtd_release(link);
+               return -ENODEV;
+       }
+       dev_info(&dev->p_dev->dev, "mtd%d: %s\n", mtd->index, mtd->name);
+       return 0;
+}
+
+
+static int pcmciamtd_suspend(struct pcmcia_device *dev)
+{
+       pr_debug("EVENT_PM_RESUME\n");
+
+       /* get_lock(link); */
+
+       return 0;
+}
+
+static int pcmciamtd_resume(struct pcmcia_device *dev)
+{
+       pr_debug("EVENT_PM_SUSPEND\n");
+
+       /* free_lock(link); */
+
+       return 0;
+}
+
+
+static void pcmciamtd_detach(struct pcmcia_device *link)
+{
+       struct pcmciamtd_dev *dev = link->priv;
+
+       pr_debug("link=0x%p\n", link);
+
+       if(dev->mtd_info) {
+               mtd_device_unregister(dev->mtd_info);
+               dev_info(&dev->p_dev->dev, "mtd%d: Removing\n",
+                        dev->mtd_info->index);
+               map_destroy(dev->mtd_info);
+       }
+
+       pcmciamtd_release(link);
+}
+
+
+static int pcmciamtd_probe(struct pcmcia_device *link)
+{
+       struct pcmciamtd_dev *dev;
+
+       /* Create new memory card device */
+       dev = kzalloc(sizeof(*dev), GFP_KERNEL);
+       if (!dev) return -ENOMEM;
+       pr_debug("dev=0x%p\n", dev);
+
+       dev->p_dev = link;
+       link->priv = dev;
+
+       return pcmciamtd_config(link);
+}
+
+static const struct pcmcia_device_id pcmciamtd_ids[] = {
+       PCMCIA_DEVICE_FUNC_ID(1),
+       PCMCIA_DEVICE_PROD_ID123("IO DATA", "PCS-2M", "2MB SRAM", 0x547e66dc, 0x1fed36cd, 0x36eadd21),
+       PCMCIA_DEVICE_PROD_ID12("IBM", "2MB SRAM", 0xb569a6e5, 0x36eadd21),
+       PCMCIA_DEVICE_PROD_ID12("IBM", "4MB FLASH", 0xb569a6e5, 0x8bc54d2a),
+       PCMCIA_DEVICE_PROD_ID12("IBM", "8MB FLASH", 0xb569a6e5, 0x6df1be3e),
+       PCMCIA_DEVICE_PROD_ID12("Intel", "S2E20SW", 0x816cc815, 0xd14c9dcf),
+       PCMCIA_DEVICE_PROD_ID12("Intel", "S2E8 SW", 0x816cc815, 0xa2d7dedb),
+       PCMCIA_DEVICE_PROD_ID12("intel", "SERIES2-02 ", 0x40ade711, 0x145cea5c),
+       PCMCIA_DEVICE_PROD_ID12("intel", "SERIES2-04 ", 0x40ade711, 0x42064dda),
+       PCMCIA_DEVICE_PROD_ID12("intel", "SERIES2-20 ", 0x40ade711, 0x25ee5cb0),
+       PCMCIA_DEVICE_PROD_ID12("intel", "VALUE SERIES 100 ", 0x40ade711, 0xdf8506d8),
+       PCMCIA_DEVICE_PROD_ID12("KINGMAX TECHNOLOGY INC.", "SRAM 256K Bytes", 0x54d0c69c, 0xad12c29c),
+       PCMCIA_DEVICE_PROD_ID12("Maxtor", "MAXFL MobileMax Flash Memory Card", 0xb68968c8, 0x2dfb47b0),
+       PCMCIA_DEVICE_PROD_ID123("M-Systems", "M-SYS Flash Memory Card", "(c) M-Systems", 0x7ed2ad87, 0x675dc3fb, 0x7aef3965),
+       PCMCIA_DEVICE_PROD_ID12("PRETEC", "  2MB SRAM CARD", 0xebf91155, 0x805360ca),
+       PCMCIA_DEVICE_PROD_ID12("SEIKO EPSON", "WWB101EN20", 0xf9876baf, 0xad0b207b),
+       PCMCIA_DEVICE_PROD_ID12("SEIKO EPSON", "WWB513EN20", 0xf9876baf, 0xe8d884ad),
+       PCMCIA_DEVICE_PROD_ID12("SMART Modular Technologies", " 4MB FLASH Card", 0x96fd8277, 0x737a5b05),
+       PCMCIA_DEVICE_PROD_ID12("Starfish, Inc.", "REX-3000", 0x05ddca47, 0xe7d67bca),
+       PCMCIA_DEVICE_PROD_ID12("Starfish, Inc.", "REX-4100", 0x05ddca47, 0x7bc32944),
+       /* the following was commented out in pcmcia-cs-3.2.7 */
+       /* PCMCIA_DEVICE_PROD_ID12("RATOC Systems,Inc.", "SmartMedia ADAPTER PC Card", 0xf4a2fefe, 0x5885b2ae), */
+#ifdef CONFIG_MTD_PCMCIA_ANONYMOUS
+       { .match_flags = PCMCIA_DEV_ID_MATCH_ANONYMOUS, },
+#endif
+       PCMCIA_DEVICE_NULL
+};
+MODULE_DEVICE_TABLE(pcmcia, pcmciamtd_ids);
+
+static struct pcmcia_driver pcmciamtd_driver = {
+       .name           = "pcmciamtd",
+       .probe          = pcmciamtd_probe,
+       .remove         = pcmciamtd_detach,
+       .owner          = THIS_MODULE,
+       .id_table       = pcmciamtd_ids,
+       .suspend        = pcmciamtd_suspend,
+       .resume         = pcmciamtd_resume,
+};
+
+
+static int __init init_pcmciamtd(void)
+{
+       if(bankwidth && bankwidth != 1 && bankwidth != 2) {
+               info("bad bankwidth (%d), using default", bankwidth);
+               bankwidth = 2;
+       }
+       if(force_size && (force_size < 1 || force_size > 64)) {
+               info("bad force_size (%d), using default", force_size);
+               force_size = 0;
+       }
+       if(mem_type && mem_type != 1 && mem_type != 2) {
+               info("bad mem_type (%d), using default", mem_type);
+               mem_type = 0;
+       }
+       return pcmcia_register_driver(&pcmciamtd_driver);
+}
+
+
+static void __exit exit_pcmciamtd(void)
+{
+       pr_debug(DRIVER_DESC " unloading");
+       pcmcia_unregister_driver(&pcmciamtd_driver);
+}
+
+module_init(init_pcmciamtd);
+module_exit(exit_pcmciamtd);