sysmo-bts
/
barebox
9
0
Fork 0
Code Releases Activity

nor m25p80: refactor chip erase 

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This commit is contained in:
Sascha Hauer 2012-07-31 12:09:18 +02:00
parent 066fba5736
commit e401f1dad2
1 changed files with 11 additions and 12 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

23
drivers/nor/m25p80.c
View File

@ -210,9 +210,10 @@ static ssize_t m25p80_erase(struct cdev *cdev, size_t count, loff_t offset)
/* whole-chip erase? */
if (len == flash->size) {
if (erase_chip(flash))
return -EIO;
return 0;
}
/* REVISIT in some cases we could speed up erasing large regions
* by using OPCODE_SE instead of OPCODE_BE_4K. We may have set up
@ -220,18 +221,16 @@ static ssize_t m25p80_erase(struct cdev *cdev, size_t count, loff_t offset)
*/
/* "sector"-at-a-time erase */
} else {
while (len) {
if (ctrlc())
return -EINTR;
if (erase_sector(flash, addr))
return -EIO;
while (len) {
if (ctrlc())
return -EINTR;
if (erase_sector(flash, addr))
return -EIO;
if (len <= flash->erasesize)
break;
addr += flash->erasesize;
len -= flash->erasesize;
}
if (len <= flash->erasesize)
break;
addr += flash->erasesize;
len -= flash->erasesize;
}
return 0;