Robin Gong f62caccd12 spi: spi-imx: add DMA support ... Enable DMA support on i.mx6. The read speed can increase from 600KB/s to 1.2MB/s on i.mx6q. You can disable or enable dma function in dts. If not set "dma-names" in dts, spi will use PIO mode. This patch only validate on i.mx6, not i.mx5, but encourage ones to apply this patch on i.mx5 since they share the same IP. Note: Sometime, there is a weid data in rxfifo after one full tx/rx transfer finish by DMA on i.mx6dl, so we disable dma functhion on i.mx6dl. Signed-off-by: Frank Li <Frank.Li@freescale.com> Signed-off-by: Robin Gong <b38343@freescale.com> Acked-by: Marek Vasut <marex@denx.de> Signed-off-by: Mark Brown <broonie@kernel.org>		2014-09-17 11:36:11 -07:00
..
bindings	spi: spi-imx: add DMA support	2014-09-17 11:36:11 -07:00
00-INDEX
booting-without-of.txt
changesets.txt	of: Transactional DT support.	2014-07-23 17:29:15 -06:00
todo.txt	of: Add todo tasklist for Devicetree	2014-07-23 17:33:01 -06:00
usage-model.txt