UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

mtd: nand: omap: Switch to using GPMC-NAND ops for writebuffer empty check 

Instead of accessing the gpmc_status register directly start
using the gpmc_nand_ops->nand_writebuffer_empty() helper
to check write buffer empty status.

Signed-off-by: Roger Quadros <rogerq@ti.com>
Acked-by: Brian Norris <computersforpeace@gmail.com>
Acked-by: Tony Lindgren <tony@atomide.com>
This commit is contained in:
Roger Quadros 2015-08-05 13:36:43 +03:00
parent c509aefd75
commit d6e552168d
1 changed files with 4 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
drivers/mtd/nand/omap2.c
View File

@ -291,14 +291,13 @@ static void omap_write_buf8(struct mtd_info *mtd, const u_char *buf, int len)
{
struct omap_nand_info *info = mtd_to_omap(mtd);
u_char *p = (u_char *)buf;
u32 status = 0;
bool status;
while (len--) {
iowrite8(*p++, info->nand.IO_ADDR_W);
/* wait until buffer is available for write */
do {
status = readl(info->reg.gpmc_status) &
STATUS_BUFF_EMPTY;
status = info->ops->nand_writebuffer_empty();
} while (!status);
}
}
@ -326,7 +325,7 @@ static void omap_write_buf16(struct mtd_info *mtd, const u_char * buf, int len)
{
struct omap_nand_info *info = mtd_to_omap(mtd);
u16 *p = (u16 *) buf;
u32 status = 0;
bool status;
/* FIXME try bursts of writesw() or DMA ... */
len >>= 1;
@ -334,8 +333,7 @@ static void omap_write_buf16(struct mtd_info *mtd, const u_char * buf, int len)
iowrite16(*p++, info->nand.IO_ADDR_W);
/* wait until buffer is available for write */
do {
status = readl(info->reg.gpmc_status) &
STATUS_BUFF_EMPTY;
status = info->ops->nand_writebuffer_empty();
} while (!status);
}
}