u-boot/drivers/mtd/mtd_uboot.c
Tom Rini 83d290c56f SPDX: Convert all of our single license tags to Linux Kernel style
When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from.  So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry.  Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.

In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.

This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents.  There's also a few places where I found we did not have a tag
and have introduced one.

Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-07 09:34:12 -04:00

99 lines
1.9 KiB
C

// SPDX-License-Identifier: GPL-2.0+
/*
* (C) Copyright 2014
* Heiko Schocher, DENX Software Engineering, hs@denx.de.
*/
#include <common.h>
#include <linux/mtd/mtd.h>
#include <jffs2/jffs2.h>
static int get_part(const char *partname, int *idx, loff_t *off, loff_t *size,
loff_t *maxsize, int devtype)
{
#ifdef CONFIG_CMD_MTDPARTS
struct mtd_device *dev;
struct part_info *part;
u8 pnum;
int ret;
ret = mtdparts_init();
if (ret)
return ret;
ret = find_dev_and_part(partname, &dev, &pnum, &part);
if (ret)
return ret;
if (dev->id->type != devtype) {
printf("not same typ %d != %d\n", dev->id->type, devtype);
return -1;
}
*off = part->offset;
*size = part->size;
*maxsize = part->size;
*idx = dev->id->num;
return 0;
#else
puts("mtdparts support missing.\n");
return -1;
#endif
}
int mtd_arg_off(const char *arg, int *idx, loff_t *off, loff_t *size,
loff_t *maxsize, int devtype, uint64_t chipsize)
{
if (!str2off(arg, off))
return get_part(arg, idx, off, size, maxsize, devtype);
if (*off >= chipsize) {
puts("Offset exceeds device limit\n");
return -1;
}
*maxsize = chipsize - *off;
*size = *maxsize;
return 0;
}
int mtd_arg_off_size(int argc, char *const argv[], int *idx, loff_t *off,
loff_t *size, loff_t *maxsize, int devtype,
uint64_t chipsize)
{
int ret;
if (argc == 0) {
*off = 0;
*size = chipsize;
*maxsize = *size;
goto print;
}
ret = mtd_arg_off(argv[0], idx, off, size, maxsize, devtype,
chipsize);
if (ret)
return ret;
if (argc == 1)
goto print;
if (!str2off(argv[1], size)) {
printf("'%s' is not a number\n", argv[1]);
return -1;
}
if (*size > *maxsize) {
puts("Size exceeds partition or device limit\n");
return -1;
}
print:
printf("device %d ", *idx);
if (*size == chipsize)
puts("whole chip\n");
else
printf("offset 0x%llx, size 0x%llx\n",
(unsigned long long)*off, (unsigned long long)*size);
return 0;
}