[PATCH v3 06/27] mtd: nand: omap2: Switch to using GPMC-NAND ops for writebuffer empty check
From: Roger Quadros <hidden>
Date: 2015-09-18 14:55:29
Also in:
linux-omap, lkml
Subsystem:
memory technology devices (mtd), nand flash subsystem, the rest · Maintainers:
Miquel Raynal, Richard Weinberger, Vignesh Raghavendra, Linus Torvalds
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 <redacted> --- drivers/mtd/nand/omap2.c | 10 ++++------ 1 file changed, 4 insertions(+), 6 deletions(-)
diff --git a/drivers/mtd/nand/omap2.c b/drivers/mtd/nand/omap2.c
index f214fe2..0eb0b8c 100644
--- a/drivers/mtd/nand/omap2.c
+++ b/drivers/mtd/nand/omap2.c@@ -289,14 +289,13 @@ static void omap_write_buf8(struct mtd_info *mtd, const u_char *buf, int len) struct omap_nand_info *info = container_of(mtd, struct omap_nand_info, 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); } }
@@ -325,7 +324,7 @@ static void omap_write_buf16(struct mtd_info *mtd, const u_char * buf, int len) struct omap_nand_info *info = container_of(mtd, struct omap_nand_info, mtd); u16 *p = (u16 *) buf; - u32 status = 0; + bool status; /* FIXME try bursts of writesw() or DMA ... */ len >>= 1;
@@ -333,8 +332,7 @@ 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); } }
--
2.1.4
______________________________________________________
Linux MTD discussion mailing list
http://lists.infradead.org/mailman/listinfo/linux-mtd/