diff options
| author |   Bin Meng <bmeng.cn@gmail.com> | 2017-09-11 02:41:58 -0700 |
|---|---|---|
| committer |   Cyrille Pitchen <cyrille.pitchen@wedev4u.fr> | 2017-10-11 09:52:01 +0200 |
| commit | 6e995b84ce449758017d1eab5a91865158e3ceee (patch) | |
| tree | e4cb5e218c5fa11e214a9181a38fc1fe045b1062 /drivers/mtd/spi-nor | |
| parent | spi-nor: intel-spi: Don't assume OPMENU0/1 to be programmed by BIOS (diff) | |
| download | linux-dev-6e995b84ce449758017d1eab5a91865158e3ceee.tar.xz linux-dev-6e995b84ce449758017d1eab5a91865158e3ceee.zip | |
spi-nor: intel-spi: Remove the unnecessary HSFSTS register RW
There is no code that alters the HSFSTS register content in between
in intel_spi_write(). Remove the unnecessary RW to save some cycles.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Cyrille Pitchen <cyrille.pitchen@wedev4u.fr>
Diffstat (limited to 'drivers/mtd/spi-nor')
| -rw-r--r-- | drivers/mtd/spi-nor/intel-spi.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/mtd/spi-nor/intel-spi.c b/drivers/mtd/spi-nor/intel-spi.c index 07146ab19cac..91ceef7c9185 100644 --- a/drivers/mtd/spi-nor/intel-spi.c +++ b/drivers/mtd/spi-nor/intel-spi.c @@ -611,7 +611,6 @@ static ssize_t intel_spi_write(struct spi_nor *nor, loff_t to, size_t len, val |= HSFSTS_CTL_AEL | HSFSTS_CTL_FCERR | HSFSTS_CTL_FDONE; val |= (block_size - 1) << HSFSTS_CTL_FDBC_SHIFT; val |= HSFSTS_CTL_FCYCLE_WRITE; - writel(val, ispi->base + HSFSTS_CTL); ret = intel_spi_write_block(ispi, write_buf, block_size); if (ret) { @@ -620,8 +619,8 @@ static ssize_t intel_spi_write(struct spi_nor *nor, loff_t to, size_t len, } /* Start the write now */ - val = readl(ispi->base + HSFSTS_CTL); - writel(val | HSFSTS_CTL_FGO, ispi->base + HSFSTS_CTL); + val |= HSFSTS_CTL_FGO; + writel(val, ispi->base + HSFSTS_CTL); ret = intel_spi_wait_hw_busy(ispi); if (ret) { |