sh_flctl: fix hardware ecc handling for 2048 byte page
Subsystems (3)
PATCH 1/1 sh_flctl: fix hardware ecc handling for 2048 byte page
Signed-off-by Jeremy Baker <[email protected]>
Signed-off-by Yoshihiro Shimoda <[email protected]>
--- drivers/mtd/nand/sh_flctl.c | 18 ++++++++++++------ 1 files changed, 12 insertions(+), 6 deletions(-)
drivers/mtd/nand/sh_flctl.c +12 -6
@@ -58,7 +58,7 @@ static struct nand_bbt_descr flctl_4secc_smallpage = { };static struct nand_bbt_descr flctl_4secc_largepage = { - .options =0 , + .options =NAND_BBT_SCAN2NDPAGE , .offs =58 , .len =2 , .pattern = scan_ff_pattern,
@@ -149,7 +149,7 @@ static void wait_wfifo_ready(struct sh_flctl *flctl)printk (KERN_ERR "wait_wfifo_ready(): Timeout occured \n" ); } -static int wait_recfifo_ready (struct sh_flctl *flctl) +static int wait_recfifo_ready (struct sh_flctl *flctl,int sector_number) {uint32_t timeout =LOOP_TIMEOUT_MAX ;int checked[4 ];
@@ -183,7 +183,12 @@ static int wait_recfifo_ready(struct sh_flctl *flctl)uint8_t org;int index; - index = data >>16 ; +if (flctl->page_size) + index = (512 * sector_number) + + (data >>16 ); +else + index = data >>16 ; + org = flctl->done_buff[index]; flctl->done_buff[index] = org ^ (data &0xFF ); checked[i] =1 ;
@@ -238,14 +243,14 @@ static void read_fiforeg(struct sh_flctl *flctl, int rlen, int offset) } } -static int read_ecfiforeg (struct sh_flctl *flctl,uint8_t *buff) +static int read_ecfiforeg (struct sh_flctl *flctl,uint8_t *buff,int sector) {int i;unsigned long *ecc_buf = (unsigned long *)buff;void *fifo_addr = (void *)FLECFIFO (flctl);for (i =0 ; i <4 ; i++) { -if (wait_recfifo_ready (flctl)) +if (wait_recfifo_ready (flctl , sector))return 1 ; ecc_buf[i] =readl (fifo_addr); ecc_buf[i] =be32_to_cpu (ecc_buf[i]);
@@ -384,7 +389,8 @@ static void execmd_read_page_sector(struct mtd_info *mtd, int page_addr)read_fiforeg (flctl,512 ,512 * sector); ret =read_ecfiforeg (flctl, - &flctl->done_buff[mtd->writesize +16 * sector]); + &flctl->done_buff[mtd->writesize +16 * sector], + sector);if (ret) flctl->hwecc_cant_correct[sector] =1 ;
Signature · 1 line
1.5.5