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| author | Tudor Ambarus <tudor.ambarus@microchip.com> | 2020-07-16 07:31:39 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2020-07-17 00:55:24 +0100 |
| commit | b780c3f38812bce7d7baebe2108738a043d6c4c3 (patch) | |
| tree | 369cfe620ff4fc14ff3cd145532d30e951f9c04c /drivers/spi/Kconfig | |
| parent | e126859729ed4a5143e5690186b8bec1c1157113 (diff) | |
| download | linux-b780c3f38812bce7d7baebe2108738a043d6c4c3.tar.bz2 | |
spi: atmel-quadspi: Use optimezed memcpy_fromio()/memcpy_toio()
Optimezed mem*io operations are defined for LE platforms, use them.
The ARM and !ARCH_EBSA110 dependencies for COMPILE_TEST were added
only for the _memcpy_fromio()/_memcpy_toio() functions. Drop these
dependencies.
Tested unaligned accesses on both sama5d2 and sam9x60 QSPI controllers
using SPI NOR flashes, everything works ok. The following performance
improvement can be seen when running mtd_speedtest:
sama5d2_xplained (mx25l25635e)
- before:
mtd_speedtest: eraseblock write speed is 983 KiB/s
mtd_speedtest: eraseblock read speed is 6150 KiB/s
- after:
mtd_speedtest: eraseblock write speed is 1055 KiB/s
mtd_speedtest: eraseblock read speed is 20144 KiB/s
sam9x60ek (sst26vf064b)
- before:
mtd_speedtest: eraseblock write speed is 4770 KiB/s
mtd_speedtest: eraseblock read speed is 8062 KiB/s
- after:
mtd_speedtest: eraseblock write speed is 4524 KiB/s
mtd_speedtest: eraseblock read speed is 21186 KiB/s
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Link: https://lore.kernel.org/r/20200716043139.565734-1-tudor.ambarus@microchip.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'drivers/spi/Kconfig')
| -rw-r--r-- | drivers/spi/Kconfig | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/spi/Kconfig b/drivers/spi/Kconfig index fd64c865f6ef..b89d03a36cbd 100644 --- a/drivers/spi/Kconfig +++ b/drivers/spi/Kconfig @@ -103,7 +103,7 @@ config SPI_AT91_USART config SPI_ATMEL_QUADSPI tristate "Atmel Quad SPI Controller" - depends on ARCH_AT91 || (ARM && COMPILE_TEST && !ARCH_EBSA110) + depends on ARCH_AT91 || COMPILE_TEST depends on OF && HAS_IOMEM help This enables support for the Quad SPI controller in master mode. |