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authorVignesh R <vigneshr@ti.com>2016-08-17 15:22:37 +0530
committerMark Brown <broonie@kernel.org>2016-08-17 12:24:28 +0100
commit5720ec0a6d2605930934f3f154b048e8be3d8a40 (patch)
treeb1f3ac74bd8391060ddc2cfd599fd68e252484b3 /tools/spi
parent29b4817d4018df78086157ea3a55c1d9424a7cfc (diff)
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>
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