github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-06-05 13:06:59 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

ARM: dts: imx6q: Use correct SDMA script for SPI5 core

Browse Source 
According to the reference manual the shp_2_mcu / mcu_2_shp
scripts must be used for devices connected through the SPBA.

This fixes an issue we saw with DMA transfers.
Sometimes the SPI controller RX FIFO was not empty after a DMA
transfer and the driver got stuck in the next PIO transfer when
it read one word more than expected.

commit dd4b487b32 ("ARM: dts: imx6: Use correct SDMA script
for SPI cores") is fixing the same issue but only for SPI1 - 4.

Fixes: 677940258d ("ARM: dts: imx6q: enable dma for ecspi5")
Signed-off-by: Sean Nyekjaer <sean.nyekjaer@prevas.dk>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
This commit is contained in:
Sean Nyekjaer 2018-05-22 19:45:09 +02:00 committed by Shawn Guo
parent ce397d215c
commit df07101e1c
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
arch/arm/boot/dts/imx6q.dtsi
View File

@ -90,7 +90,7 @@ ecspi5: ecspi@2018000 {
clocks = <&clks IMX6Q_CLK_ECSPI5>,
<&clks IMX6Q_CLK_ECSPI5>;
clock-names = "ipg", "per";
dmas = <&sdma 11 7 1>, <&sdma 12 7 2>;
dmas = <&sdma 11 8 1>, <&sdma 12 8 2>;
dma-names = "rx", "tx";
status = "disabled";
};