![Linus Torvalds](/assets/img/avatar_default.png)
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
67 lines
1.4 KiB
C
67 lines
1.4 KiB
C
/*
|
|
* $Id: rpxlite.c,v 1.22 2004/11/04 13:24:15 gleixner Exp $
|
|
*
|
|
* Handle mapping of the flash on the RPX Lite and CLLF boards
|
|
*/
|
|
|
|
#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>
|
|
|
|
|
|
#define WINDOW_ADDR 0xfe000000
|
|
#define WINDOW_SIZE 0x800000
|
|
|
|
static struct mtd_info *mymtd;
|
|
|
|
static struct map_info rpxlite_map = {
|
|
.name = "RPX",
|
|
.size = WINDOW_SIZE,
|
|
.bankwidth = 4,
|
|
.phys = WINDOW_ADDR,
|
|
};
|
|
|
|
int __init init_rpxlite(void)
|
|
{
|
|
printk(KERN_NOTICE "RPX Lite or CLLF flash device: %x at %x\n", WINDOW_SIZE*4, WINDOW_ADDR);
|
|
rpxlite_map.virt = ioremap(WINDOW_ADDR, WINDOW_SIZE * 4);
|
|
|
|
if (!rpxlite_map.virt) {
|
|
printk("Failed to ioremap\n");
|
|
return -EIO;
|
|
}
|
|
simple_map_init(&rpxlite_map);
|
|
mymtd = do_map_probe("cfi_probe", &rpxlite_map);
|
|
if (mymtd) {
|
|
mymtd->owner = THIS_MODULE;
|
|
add_mtd_device(mymtd);
|
|
return 0;
|
|
}
|
|
|
|
iounmap((void *)rpxlite_map.virt);
|
|
return -ENXIO;
|
|
}
|
|
|
|
static void __exit cleanup_rpxlite(void)
|
|
{
|
|
if (mymtd) {
|
|
del_mtd_device(mymtd);
|
|
map_destroy(mymtd);
|
|
}
|
|
if (rpxlite_map.virt) {
|
|
iounmap((void *)rpxlite_map.virt);
|
|
rpxlite_map.virt = 0;
|
|
}
|
|
}
|
|
|
|
module_init(init_rpxlite);
|
|
module_exit(cleanup_rpxlite);
|
|
|
|
MODULE_LICENSE("GPL");
|
|
MODULE_AUTHOR("Arnold Christensen <AKC@pel.dk>");
|
|
MODULE_DESCRIPTION("MTD map driver for RPX Lite and CLLF boards");
|