[PATCH v2 06/22] mtd: nand: omap2: Switch to using GPMC-NAND ops for writebuffer empty check
From: Roger Quadros <hidden>
Date: 2015-08-07 09:22:49
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 | 12 ++---------- 1 file changed, 2 insertions(+), 10 deletions(-)
diff --git a/drivers/mtd/nand/omap2.c b/drivers/mtd/nand/omap2.c
index f214fe2..5c2f6df 100644
--- a/drivers/mtd/nand/omap2.c
+++ b/drivers/mtd/nand/omap2.c@@ -289,15 +289,11 @@ 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; 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; - } while (!status); + while (info->ops->nand_writebuffer_empty()); } }
@@ -325,17 +321,13 @@ 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; /* FIXME try bursts of writesw() or DMA ... */ len >>= 1; while (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; - } while (!status); + while (info->ops->nand_writebuffer_empty()); } }
--
2.1.4
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