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c5d23f1b
cloud-kernel
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c5d23f1b
编写于
15年前
作者:
S
Sascha Hauer
浏览文件
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电子邮件补丁
差异文件
mxc nand: modify send_page to send all pages, not only one
Signed-off-by:
N
Sascha Hauer
<
s.hauer@pengutronix.de
>
上级
89121a6b
无相关合并请求
变更
1
隐藏空白更改
内联
并排
Showing
1 changed file
with
20 addition
and
25 deletion
+20
-25
drivers/mtd/nand/mxc_nand.c
drivers/mtd/nand/mxc_nand.c
+20
-25
未找到文件。
drivers/mtd/nand/mxc_nand.c
浏览文件 @
c5d23f1b
...
@@ -228,16 +228,25 @@ static void send_addr(struct mxc_nand_host *host, uint16_t addr, int islast)
...
@@ -228,16 +228,25 @@ static void send_addr(struct mxc_nand_host *host, uint16_t addr, int islast)
wait_op_done
(
host
,
TROP_US_DELAY
,
islast
);
wait_op_done
(
host
,
TROP_US_DELAY
,
islast
);
}
}
static
void
send_page
(
struct
mxc_nand_host
*
host
,
uint8_t
buf_id
,
static
void
send_page
(
struct
mxc_nand_host
*
host
,
unsigned
int
ops
)
unsigned
int
ops
)
{
{
/* NANDFC buffer 0 is used for page read/write */
int
bufs
,
i
;
writew
(
buf_id
,
host
->
regs
+
NFC_BUF_ADDR
);
writew
(
ops
,
host
->
regs
+
NFC_CONFIG2
);
if
(
host
->
pagesize_2k
)
bufs
=
4
;
else
bufs
=
1
;
/* Wait for operation to complete */
for
(
i
=
0
;
i
<
bufs
;
i
++
)
{
wait_op_done
(
host
,
TROP_US_DELAY
,
true
);
/* NANDFC buffer 0 is used for page read/write */
writew
(
i
,
host
->
regs
+
NFC_BUF_ADDR
);
writew
(
ops
,
host
->
regs
+
NFC_CONFIG2
);
/* Wait for operation to complete */
wait_op_done
(
host
,
TROP_US_DELAY
,
true
);
}
}
}
/* Request the NANDFC to perform a read of the NAND device ID. */
/* Request the NANDFC to perform a read of the NAND device ID. */
...
@@ -565,16 +574,10 @@ static void mxc_nand_command(struct mtd_info *mtd, unsigned command,
...
@@ -565,16 +574,10 @@ static void mxc_nand_command(struct mtd_info *mtd, unsigned command,
send_cmd
(
host
,
command
,
false
);
send_cmd
(
host
,
command
,
false
);
mxc_do_addr_cycle
(
mtd
,
column
,
page_addr
);
mxc_do_addr_cycle
(
mtd
,
column
,
page_addr
);
if
(
host
->
pagesize_2k
)
{
if
(
host
->
pagesize_2k
)
/* send read confirm command */
send_cmd
(
host
,
NAND_CMD_READSTART
,
true
);
send_cmd
(
host
,
NAND_CMD_READSTART
,
true
);
/* read for each AREA */
send_page
(
host
,
0
,
NFC_OUTPUT
);
send_page
(
host
,
NFC_OUTPUT
);
send_page
(
host
,
1
,
NFC_OUTPUT
);
send_page
(
host
,
2
,
NFC_OUTPUT
);
send_page
(
host
,
3
,
NFC_OUTPUT
);
}
else
send_page
(
host
,
0
,
NFC_OUTPUT
);
memcpy
(
host
->
data_buf
,
host
->
regs
+
MAIN_AREA0
,
mtd
->
writesize
);
memcpy
(
host
->
data_buf
,
host
->
regs
+
MAIN_AREA0
,
mtd
->
writesize
);
copy_spare
(
mtd
,
true
);
copy_spare
(
mtd
,
true
);
...
@@ -614,15 +617,7 @@ static void mxc_nand_command(struct mtd_info *mtd, unsigned command,
...
@@ -614,15 +617,7 @@ static void mxc_nand_command(struct mtd_info *mtd, unsigned command,
case
NAND_CMD_PAGEPROG
:
case
NAND_CMD_PAGEPROG
:
memcpy
(
host
->
regs
+
MAIN_AREA0
,
host
->
data_buf
,
mtd
->
writesize
);
memcpy
(
host
->
regs
+
MAIN_AREA0
,
host
->
data_buf
,
mtd
->
writesize
);
copy_spare
(
mtd
,
false
);
copy_spare
(
mtd
,
false
);
send_page
(
host
,
0
,
NFC_INPUT
);
send_page
(
host
,
NFC_INPUT
);
if
(
host
->
pagesize_2k
)
{
/* data in 4 areas datas */
send_page
(
host
,
1
,
NFC_INPUT
);
send_page
(
host
,
2
,
NFC_INPUT
);
send_page
(
host
,
3
,
NFC_INPUT
);
}
send_cmd
(
host
,
command
,
true
);
send_cmd
(
host
,
command
,
true
);
mxc_do_addr_cycle
(
mtd
,
column
,
page_addr
);
mxc_do_addr_cycle
(
mtd
,
column
,
page_addr
);
break
;
break
;
...
...
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