mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
synced 2024-11-25 07:18:06 +02:00
2d581e6047
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@16459 3c298f89-4303-0410-b956-a3cf2f4a3e73
95 lines
2.4 KiB
Diff
95 lines
2.4 KiB
Diff
--- a/drivers/mtd/devices/goldfish_nand.c
|
|
+++ b/drivers/mtd/devices/goldfish_nand.c
|
|
@@ -65,7 +65,7 @@ static int goldfish_nand_erase(struct mt
|
|
if(rem)
|
|
goto invalid_arg;
|
|
ofs *= (mtd->writesize + mtd->oobsize);
|
|
-
|
|
+
|
|
if(len % mtd->writesize)
|
|
goto invalid_arg;
|
|
len = len / mtd->writesize * (mtd->writesize + mtd->oobsize);
|
|
@@ -94,15 +94,12 @@ static int goldfish_nand_read_oob(struct
|
|
|
|
if(ofs + ops->len > mtd->size)
|
|
goto invalid_arg;
|
|
- if(ops->datbuf && ops->len && ops->len != mtd->writesize)
|
|
- goto invalid_arg;
|
|
if(ops->ooblen + ops->ooboffs > mtd->oobsize)
|
|
goto invalid_arg;
|
|
|
|
rem = do_div(ofs, mtd->writesize);
|
|
- if(rem)
|
|
- goto invalid_arg;
|
|
ofs *= (mtd->writesize + mtd->oobsize);
|
|
+ ofs += rem;
|
|
|
|
if(ops->datbuf)
|
|
ops->retlen = goldfish_nand_cmd(mtd, NAND_CMD_READ, ofs,
|
|
@@ -131,7 +128,7 @@ static int goldfish_nand_write_oob(struc
|
|
goto invalid_arg;
|
|
if(ops->ooblen + ops->ooboffs > mtd->oobsize)
|
|
goto invalid_arg;
|
|
-
|
|
+
|
|
rem = do_div(ofs, mtd->writesize);
|
|
if(rem)
|
|
goto invalid_arg;
|
|
@@ -160,15 +157,24 @@ static int goldfish_nand_read(struct mtd
|
|
|
|
if(from + len > mtd->size)
|
|
goto invalid_arg;
|
|
- if(len != mtd->writesize)
|
|
- goto invalid_arg;
|
|
+
|
|
+ *retlen = 0;
|
|
|
|
rem = do_div(from, mtd->writesize);
|
|
- if(rem)
|
|
- goto invalid_arg;
|
|
from *= (mtd->writesize + mtd->oobsize);
|
|
+ from += rem;
|
|
|
|
- *retlen = goldfish_nand_cmd(mtd, NAND_CMD_READ, from, len, buf);
|
|
+ do {
|
|
+ *retlen += goldfish_nand_cmd(mtd, NAND_CMD_READ, from, min(len, mtd->writesize - rem), buf);
|
|
+ if (len > mtd->writesize - rem) {
|
|
+ len -= mtd->writesize - rem;
|
|
+ buf += mtd->writesize - rem;
|
|
+ from += mtd->writesize + mtd->oobsize - rem;
|
|
+ rem = 0;
|
|
+ } else {
|
|
+ len = 0;
|
|
+ }
|
|
+ } while (len);
|
|
return 0;
|
|
|
|
invalid_arg:
|
|
@@ -184,15 +190,23 @@ static int goldfish_nand_write(struct mt
|
|
|
|
if(to + len > mtd->size)
|
|
goto invalid_arg;
|
|
- if(len != mtd->writesize)
|
|
- goto invalid_arg;
|
|
|
|
rem = do_div(to, mtd->writesize);
|
|
if(rem)
|
|
goto invalid_arg;
|
|
to *= (mtd->writesize + mtd->oobsize);
|
|
|
|
- *retlen = goldfish_nand_cmd(mtd, NAND_CMD_WRITE, to, len, (void *)buf);
|
|
+ *retlen = 0;
|
|
+ do {
|
|
+ *retlen += goldfish_nand_cmd(mtd, NAND_CMD_WRITE, to, min(len, mtd->writesize), (void *)buf);
|
|
+ if (len > mtd->writesize) {
|
|
+ len -= mtd->writesize;
|
|
+ buf += mtd->writesize;
|
|
+ to += mtd->writesize + mtd->oobsize;
|
|
+ } else {
|
|
+ len = 0;
|
|
+ }
|
|
+ } while (len);
|
|
return 0;
|
|
|
|
invalid_arg:
|