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Groups > linux.kernel > #1228063
| From | Roger Quadros <rogerq@ti.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH v3 06/27] mtd: nand: omap2: Switch to using GPMC-NAND ops for writebuffer empty check |
| Date | 2015-09-18 17:30 +0200 |
| Message-ID | <qa5LR-6xO-39@gated-at.bofh.it> (permalink) |
| References | <qa5iO-5JO-13@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
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>
---
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
--
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[PATCH v3 00/27] memory: omap-gpmc: mtd: nand: Support GPMC NAND on non-OMAP platforms Roger Quadros <rogerq@ti.com> - 2015-09-18 17:00 +0200 [PATCH v3 25/27] ARM: dts: am335x: Provide NAND ready pin Roger Quadros <rogerq@ti.com> - 2015-09-18 17:00 +0200 [PATCH v3 15/27] memory: omap-gpmc: Support general purpose input for WAITPINs Roger Quadros <rogerq@ti.com> - 2015-09-18 17:00 +0200 [PATCH v3 26/27] ARM: dts: dm816x: Fix gpmc and NAND node Roger Quadros <rogerq@ti.com> - 2015-09-18 17:00 +0200 [PATCH v3 22/27] ARM: dts: am437x: Fix NAND device nodes Roger Quadros <rogerq@ti.com> - 2015-09-18 17:00 +0200 [PATCH v3 10/27] mtd: nand: omap: Copy platform data parameters to omap_nand_info data Roger Quadros <rogerq@ti.com> - 2015-09-18 17:00 +0200 [PATCH v3 20/27] ARM: dts: dra7: Fix NAND device nodes. Roger Quadros <rogerq@ti.com> - 2015-09-18 17:00 +0200 [PATCH v3 19/27] memory: omap-gpmc: Prevent GPMC_STATUS from being accessed via gpmc_regs Roger Quadros <rogerq@ti.com> - 2015-09-18 17:00 +0200 [PATCH v3 13/27] memory: omap-gpmc: Prevent mapping into 1st 16MB Roger Quadros <rogerq@ti.com> - 2015-09-18 17:00 +0200 [PATCH v3 18/27] mtd: nand: omap2: Implement NAND ready using gpiolib Roger Quadros <rogerq@ti.com> - 2015-09-18 17:00 +0200 [PATCH v3 21/27] ARM: dts: dra7x-evm: Provide NAND ready pin Roger Quadros <rogerq@ti.com> - 2015-09-18 17:00 +0200 [PATCH v3 11/27] mtd: nand: omap: Clean up device tree support Roger Quadros <rogerq@ti.com> - 2015-09-18 17:00 +0200 [PATCH v3 05/27] memory: omap-gpmc: Add GPMC-NAND ops to get writebufferempty status Roger Quadros <rogerq@ti.com> - 2015-09-18 17:00 +0200 [PATCH v3 27/27] ARM: dts: omap3: Fix gpmc and NAND nodes Roger Quadros <rogerq@ti.com> - 2015-09-18 17:00 +0200 [PATCH v3 14/27] memory: omap-gpmc: Move device tree binding to correct location Roger Quadros <rogerq@ti.com> - 2015-09-18 17:10 +0200 [PATCH v3 17/27] memory: omap-gpmc: Add irqchip support to the gpiochip Roger Quadros <rogerq@ti.com> - 2015-09-18 17:10 +0200 [PATCH v3 09/27] mtd: nand: omap2: manage NAND interrupts Roger Quadros <rogerq@ti.com> - 2015-09-18 17:20 +0200 [PATCH v3 12/27] mtd: nand: omap: Update DT binding documentation Roger Quadros <rogerq@ti.com> - 2015-09-18 17:20 +0200 [PATCH v3 07/27] memory: omap-gpmc: Remove NAND IRQ code Roger Quadros <rogerq@ti.com> - 2015-09-18 17:20 +0200 [PATCH v3 16/27] memory: omap-gpmc: Reserve WAITPIN if needed for WAIT monitoring Roger Quadros <rogerq@ti.com> - 2015-09-18 17:20 +0200 [PATCH v3 04/27] mtd: nand: omap2: Use gpmc_omap_get_nand_ops() to get NAND registers Roger Quadros <rogerq@ti.com> - 2015-09-18 17:30 +0200 [PATCH v3 08/27] memory: omap-gpmc: Add IRQ ops for GPMC-NAND interface Roger Quadros <rogerq@ti.com> - 2015-09-18 17:30 +0200 [PATCH v3 02/27] ARM: OMAP2+: gpmc: Add gpmc timings and settings to platform data Roger Quadros <rogerq@ti.com> - 2015-09-18 17:30 +0200 [PATCH v3 01/27] ARM: OMAP2+: gpmc: Add platform data Roger Quadros <rogerq@ti.com> - 2015-09-18 17:30 +0200 [PATCH v3 03/27] memory: omap-gpmc: Introduce GPMC to NAND interface Roger Quadros <rogerq@ti.com> - 2015-09-18 17:30 +0200 [PATCH v3 06/27] mtd: nand: omap2: Switch to using GPMC-NAND ops for writebuffer empty check Roger Quadros <rogerq@ti.com> - 2015-09-18 17:30 +0200
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