diff options
| author | Bastien Curutchet <bastien.curutchet@bootlin.com> | 2025-01-03 11:13:49 +0300 |
|---|---|---|
| committer | Miquel Raynal <miquel.raynal@bootlin.com> | 2025-01-08 21:26:48 +0300 |
| commit | 6df2d9553e168fe32dd49873dd254a63ca913307 (patch) | |
| tree | 34bc5904682bea712a1c054a410340bdcd17344d | |
| parent | b9371866799d67a80be0ea9e01bd41987db22f26 (diff) | |
| download | linux-6df2d9553e168fe32dd49873dd254a63ca913307.tar.xz | |
mtd: rawnand: davinci: Reduce polling interval in NAND_OP_WAITRDY_INSTR
For each NAND_OP_WAITRDY_INSTR operation, the NANDFSR register is
polled only once every 100 us to check for the EMA_WAIT pin. This
isn't frequent enough and causes delays in NAND accesses.
Set the polling interval to 5 us. It increases the page read speed
reported by flash_speed by ~30% (~10% on page writes).
Signed-off-by: Bastien Curutchet <bastien.curutchet@bootlin.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
| -rw-r--r-- | drivers/mtd/nand/raw/davinci_nand.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/mtd/nand/raw/davinci_nand.c b/drivers/mtd/nand/raw/davinci_nand.c index 94fdc658ed14..ee87ca669c92 100644 --- a/drivers/mtd/nand/raw/davinci_nand.c +++ b/drivers/mtd/nand/raw/davinci_nand.c @@ -736,7 +736,7 @@ static int davinci_nand_exec_instr(struct davinci_nand_info *info, case NAND_OP_WAITRDY_INSTR: timeout_us = instr->ctx.waitrdy.timeout_ms * 1000; ret = readl_relaxed_poll_timeout(info->base + NANDFSR_OFFSET, - status, status & BIT(0), 100, + status, status & BIT(0), 5, timeout_us); if (ret) return ret; |