Vignesh R 5720ec0a6d spi: spi-ti-qspi: Add DMA support for QSPI mmap read ...

Use mem-to-mem DMA to read from flash when reading in mmap mode. This
gives improved read performance and reduces CPU load.

With this patch the raw-read throughput is ~16MB/s on DRA74 EVM. And CPU
load is <20%. UBIFS read throughput ~13 MB/s.

Signed-off-by: Vignesh R <vigneshr@ti.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

2016-08-17 12:24:28 +01:00

18 KiB

Raw Blame History

View Raw