帖子: Am437x增加spi驱动支持在做loop-back test时报错？怎么解？

root@myd_c437x mmcblk1p1# ./spidev_test -D /dev/spidev1.0 

of_dma_request_slave_channel: dma-names property of node '/ocp/spi@48030000' missing or empty

spidev spi1.0: not using DMA for McSPI

of_dma_request_slave_channel: dma-names property of node '/ocp/spi@48030000' missing or empty

spidev spi1.0: not using DMA for McSPI

of_dma_request_slave_channel: dma-names property of node '/ocp/spi@48030000' missing or empty

spidev spi1.0: not using DMA for McSPI

spi mode: 0

bits per word: 8

max speed: 500000 Hz (500 KHz)

00 00 00 00 00 00 

00 00 00 00 00 00 

00 00 00 00 00 00 

00 00 00 00 00 00 

00 00 00 00 00 00 

00 00 00 00 00 00 

00 00