mirror of
https://github.com/adulau/aha.git
synced 2024-12-27 19:26:25 +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 This patch therefore removes all usages of the no longer updated CVS keywords from the MTD code.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>
134 lines
3.4 KiB
C
134 lines
3.4 KiB
C
/*
|
|
* Flash and EPROM on Hitachi Solution Engine and similar boards.
|
|
*
|
|
* (C) 2001 Red Hat, Inc.
|
|
*
|
|
* GPL'd
|
|
*/
|
|
|
|
#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/mtd/partitions.h>
|
|
#include <linux/errno.h>
|
|
|
|
static struct mtd_info *flash_mtd;
|
|
static struct mtd_info *eprom_mtd;
|
|
|
|
static struct mtd_partition *parsed_parts;
|
|
|
|
struct map_info soleng_eprom_map = {
|
|
.name = "Solution Engine EPROM",
|
|
.size = 0x400000,
|
|
.bankwidth = 4,
|
|
};
|
|
|
|
struct map_info soleng_flash_map = {
|
|
.name = "Solution Engine FLASH",
|
|
.size = 0x400000,
|
|
.bankwidth = 4,
|
|
};
|
|
|
|
static const char *probes[] = { "RedBoot", "cmdlinepart", NULL };
|
|
|
|
#ifdef CONFIG_MTD_SUPERH_RESERVE
|
|
static struct mtd_partition superh_se_partitions[] = {
|
|
/* Reserved for boot code, read-only */
|
|
{
|
|
.name = "flash_boot",
|
|
.offset = 0x00000000,
|
|
.size = CONFIG_MTD_SUPERH_RESERVE,
|
|
.mask_flags = MTD_WRITEABLE,
|
|
},
|
|
/* All else is writable (e.g. JFFS) */
|
|
{
|
|
.name = "Flash FS",
|
|
.offset = MTDPART_OFS_NXTBLK,
|
|
.size = MTDPART_SIZ_FULL,
|
|
}
|
|
};
|
|
#endif /* CONFIG_MTD_SUPERH_RESERVE */
|
|
|
|
static int __init init_soleng_maps(void)
|
|
{
|
|
int nr_parts = 0;
|
|
|
|
/* First probe at offset 0 */
|
|
soleng_flash_map.phys = 0;
|
|
soleng_flash_map.virt = (void __iomem *)P2SEGADDR(0);
|
|
soleng_eprom_map.phys = 0x01000000;
|
|
soleng_eprom_map.virt = (void __iomem *)P1SEGADDR(0x01000000);
|
|
simple_map_init(&soleng_eprom_map);
|
|
simple_map_init(&soleng_flash_map);
|
|
|
|
printk(KERN_NOTICE "Probing for flash chips at 0x00000000:\n");
|
|
flash_mtd = do_map_probe("cfi_probe", &soleng_flash_map);
|
|
if (!flash_mtd) {
|
|
/* Not there. Try swapping */
|
|
printk(KERN_NOTICE "Probing for flash chips at 0x01000000:\n");
|
|
soleng_flash_map.phys = 0x01000000;
|
|
soleng_flash_map.virt = P2SEGADDR(0x01000000);
|
|
soleng_eprom_map.phys = 0;
|
|
soleng_eprom_map.virt = P1SEGADDR(0);
|
|
flash_mtd = do_map_probe("cfi_probe", &soleng_flash_map);
|
|
if (!flash_mtd) {
|
|
/* Eep. */
|
|
printk(KERN_NOTICE "Flash chips not detected at either possible location.\n");
|
|
return -ENXIO;
|
|
}
|
|
}
|
|
printk(KERN_NOTICE "Solution Engine: Flash at 0x%08lx, EPROM at 0x%08lx\n",
|
|
soleng_flash_map.phys & 0x1fffffff,
|
|
soleng_eprom_map.phys & 0x1fffffff);
|
|
flash_mtd->owner = THIS_MODULE;
|
|
|
|
eprom_mtd = do_map_probe("map_rom", &soleng_eprom_map);
|
|
if (eprom_mtd) {
|
|
eprom_mtd->owner = THIS_MODULE;
|
|
add_mtd_device(eprom_mtd);
|
|
}
|
|
|
|
nr_parts = parse_mtd_partitions(flash_mtd, probes, &parsed_parts, 0);
|
|
|
|
#ifdef CONFIG_MTD_SUPERH_RESERVE
|
|
if (nr_parts <= 0) {
|
|
printk(KERN_NOTICE "Using configured partition at 0x%08x.\n",
|
|
CONFIG_MTD_SUPERH_RESERVE);
|
|
parsed_parts = superh_se_partitions;
|
|
nr_parts = sizeof(superh_se_partitions)/sizeof(*parsed_parts);
|
|
}
|
|
#endif /* CONFIG_MTD_SUPERH_RESERVE */
|
|
|
|
if (nr_parts > 0)
|
|
add_mtd_partitions(flash_mtd, parsed_parts, nr_parts);
|
|
else
|
|
add_mtd_device(flash_mtd);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void __exit cleanup_soleng_maps(void)
|
|
{
|
|
if (eprom_mtd) {
|
|
del_mtd_device(eprom_mtd);
|
|
map_destroy(eprom_mtd);
|
|
}
|
|
|
|
if (parsed_parts)
|
|
del_mtd_partitions(flash_mtd);
|
|
else
|
|
del_mtd_device(flash_mtd);
|
|
map_destroy(flash_mtd);
|
|
}
|
|
|
|
module_init(init_soleng_maps);
|
|
module_exit(cleanup_soleng_maps);
|
|
|
|
MODULE_LICENSE("GPL");
|
|
MODULE_AUTHOR("David Woodhouse <dwmw2@infradead.org>");
|
|
MODULE_DESCRIPTION("MTD map driver for Hitachi SolutionEngine (and similar) boards");
|
|
|