mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-09-12 05:48:40 +00:00
59018b6d2a
Once upon a time, the MTD repository was using CVS. This patch therefore removes all usages of the no longer updated CVS keywords from the MTD code. This also includes code that printed them to the user. Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
107 lines
2.4 KiB
C
107 lines
2.4 KiB
C
/*
|
|
* tsunami_flash.c
|
|
*
|
|
* flash chip on alpha ds10...
|
|
*/
|
|
#include <asm/io.h>
|
|
#include <asm/core_tsunami.h>
|
|
#include <linux/init.h>
|
|
#include <linux/mtd/map.h>
|
|
#include <linux/mtd/mtd.h>
|
|
|
|
#define FLASH_ENABLE_PORT 0x00C00001
|
|
#define FLASH_ENABLE_BYTE 0x01
|
|
#define FLASH_DISABLE_BYTE 0x00
|
|
|
|
#define MAX_TIG_FLASH_SIZE (12*1024*1024)
|
|
static inline map_word tsunami_flash_read8(struct map_info *map, unsigned long offset)
|
|
{
|
|
map_word val;
|
|
val.x[0] = tsunami_tig_readb(offset);
|
|
return val;
|
|
}
|
|
|
|
static void tsunami_flash_write8(struct map_info *map, map_word value, unsigned long offset)
|
|
{
|
|
tsunami_tig_writeb(value.x[0], offset);
|
|
}
|
|
|
|
static void tsunami_flash_copy_from(
|
|
struct map_info *map, void *addr, unsigned long offset, ssize_t len)
|
|
{
|
|
unsigned char *dest;
|
|
dest = addr;
|
|
while(len && (offset < MAX_TIG_FLASH_SIZE)) {
|
|
*dest = tsunami_tig_readb(offset);
|
|
offset++;
|
|
dest++;
|
|
len--;
|
|
}
|
|
}
|
|
|
|
static void tsunami_flash_copy_to(
|
|
struct map_info *map, unsigned long offset,
|
|
const void *addr, ssize_t len)
|
|
{
|
|
const unsigned char *src;
|
|
src = addr;
|
|
while(len && (offset < MAX_TIG_FLASH_SIZE)) {
|
|
tsunami_tig_writeb(*src, offset);
|
|
offset++;
|
|
src++;
|
|
len--;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Deliberately don't provide operations wider than 8 bits. I don't
|
|
* have then and it scares me to think how you could mess up if
|
|
* you tried to use them. Buswidth is correctly so I'm safe.
|
|
*/
|
|
static struct map_info tsunami_flash_map = {
|
|
.name = "flash chip on the Tsunami TIG bus",
|
|
.size = MAX_TIG_FLASH_SIZE,
|
|
.phys = NO_XIP,
|
|
.bankwidth = 1,
|
|
.read = tsunami_flash_read8,
|
|
.copy_from = tsunami_flash_copy_from,
|
|
.write = tsunami_flash_write8,
|
|
.copy_to = tsunami_flash_copy_to,
|
|
};
|
|
|
|
static struct mtd_info *tsunami_flash_mtd;
|
|
|
|
static void __exit cleanup_tsunami_flash(void)
|
|
{
|
|
struct mtd_info *mtd;
|
|
mtd = tsunami_flash_mtd;
|
|
if (mtd) {
|
|
del_mtd_device(mtd);
|
|
map_destroy(mtd);
|
|
}
|
|
tsunami_flash_mtd = 0;
|
|
}
|
|
|
|
|
|
static int __init init_tsunami_flash(void)
|
|
{
|
|
static const char *rom_probe_types[] = { "cfi_probe", "jedec_probe", "map_rom", NULL };
|
|
char **type;
|
|
|
|
tsunami_tig_writeb(FLASH_ENABLE_BYTE, FLASH_ENABLE_PORT);
|
|
|
|
tsunami_flash_mtd = 0;
|
|
type = rom_probe_types;
|
|
for(; !tsunami_flash_mtd && *type; type++) {
|
|
tsunami_flash_mtd = do_map_probe(*type, &tsunami_flash_map);
|
|
}
|
|
if (tsunami_flash_mtd) {
|
|
tsunami_flash_mtd->owner = THIS_MODULE;
|
|
add_mtd_device(tsunami_flash_mtd);
|
|
return 0;
|
|
}
|
|
return -ENXIO;
|
|
}
|
|
|
|
module_init(init_tsunami_flash);
|
|
module_exit(cleanup_tsunami_flash);
|