623ff7739e
Artem's cleanup of the MTD API continues apace. Fixes and improvements for ST FSMC and SuperH FLCTL NAND, amongst others. More work on DiskOnChip G3, new driver for DiskOnChip G4. Clean up debug/warning printks in JFFS2 to use pr_<level>. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iEYEABECAAYFAk92K6UACgkQdwG7hYl686NrMACfWQJRWasR78MWKfkT2vWZwTFJ X5AAoKiSYO2pfo5gWJGOAahNC1zUqMX0 =i3Vb -----END PGP SIGNATURE----- Merge tag 'for-linus-3.4' of git://git.infradead.org/mtd-2.6 Pull MTD changes from David Woodhouse: - Artem's cleanup of the MTD API continues apace. - Fixes and improvements for ST FSMC and SuperH FLCTL NAND, amongst others. - More work on DiskOnChip G3, new driver for DiskOnChip G4. - Clean up debug/warning printks in JFFS2 to use pr_<level>. Fix up various trivial conflicts, largely due to changes in calling conventions for things like dmaengine_prep_slave_sg() (new inline wrapper to hide new parameter, clashing with rewrite of previously last parameter that used to be an 'append' flag, and is now a bitmap of 'unsigned long flags'). (Also some header file fallout - like so many merges this merge window - and silly conflicts with sparse fixes) * tag 'for-linus-3.4' of git://git.infradead.org/mtd-2.6: (120 commits) mtd: docg3 add protection against concurrency mtd: docg3 refactor cascade floors structure mtd: docg3 increase write/erase timeout mtd: docg3 fix inbound calculations mtd: nand: gpmi: fix function annotations mtd: phram: fix section mismatch for phram_setup mtd: unify initialization of erase_info->fail_addr mtd: support ONFI multi lun NAND mtd: sm_ftl: fix typo in major number. mtd: add device-tree support to spear_smi mtd: spear_smi: Remove default partition information from driver mtd: Add device-tree support to fsmc_nand mtd: fix section mismatch for doc_probe_device mtd: nand/fsmc: Remove sparse warnings and errors mtd: nand/fsmc: Add DMA support mtd: nand/fsmc: Access the NAND device word by word whenever possible mtd: nand/fsmc: Use dev_err to report error scenario mtd: nand/fsmc: Use devm routines mtd: nand/fsmc: Modify fsmc driver to accept nand timing parameters via platform mtd: fsmc_nand: add pm callbacks to support hibernation ...
754 lines
20 KiB
C
754 lines
20 KiB
C
/*
|
|
* 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 0;
|
|
}
|
|
|
|
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);
|