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spi-nor: intel-spi: Remove the unnecessary HSFSTS register RW

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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 <[email protected]>
Acked-by: Mika Westerberg <[email protected]>
Signed-off-by: Cyrille Pitchen <[email protected]>
This commit is contained in:
Bin Meng 2017-09-11 02:41:58 -07:00 • committed by Cyrille Pitchen
commit 6e995b84ce
1 changed files with 2 additions and 3 deletions
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5
drivers/mtd/spi-nor/intel-spi.c
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@ -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) {