phone-side
/
uboot-mt623x
9
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

Blackfin: nand: flush peripheral before polling it 

We need to make sure the data written to the nand flash controller makes
it there before we start polling its status register.  Otherwise, we may
get stale data and return before the controller is actually ready.

Signed-off-by: Graf Yang <graf.yang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Acked-by: Scott Wood <scottwood@freescale.com>
This commit is contained in:
Graf Yang 2009-04-04 07:45:57 -04:00 committed by Mike Frysinger
parent d04371a116
commit a343ba87ea
1 changed files with 1 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/mtd/nand/bfin_nand.c
View File

@ -98,6 +98,7 @@ static void bfin_nfc_read_buf(struct mtd_info *mtd, uint8_t *buf, int len)
/* Contents do not matter */
bfin_write_NFC_DATA_RD(0x0000);
SSYNC();
while (!(bfin_read_NFC_IRQSTAT() & RD_RDY))
if (ctrlc())