On 27 February 2013 01:34, Wenyou Yang [off-list ref] wrote:

Hi All,

This set of patches is to add dmaengine support for atmel spi and to test device tree support.

The work is based on Nicolas and Richard's work.

Because the Atmel DMA device tree support hasn't on mainline, to at91sam9x5ek and at91sam9n12ek
with dma support, it doesn't work on the dmaengine mode, only on PIO mode so far.

It has been tested as below:
 1./tested on v3.8, by using mtd utils, "mount", "umount" and "cp" commands.
 2./tested on "spi/next" git tree after removing commit "spi: make sure all transfer has proper speed set".
 3./tested by using Documentation/spi/spidev_test.c on "/dev/spidev".
 4./tested on on at91sam9x5ek, at91sam9m10g45ek, at91sam9263ek and at91sam9g20ek boards

It is based on v3.8.

Did a quick test on at91rm9200 and it still works:
(DataFlash on SPI CS0 in HW mode)

[    1.100000] atmel_spi fffe0000.spi: version: 0x0
[    1.120000] atmel_spi fffe0000.spi: Atmel SPI Controller at
0xfffe0000 (irq 23)
[    1.130000] atmel_spi fffe0000.spi: master is unqueued, this is deprecated
[    1.130000] mtd_dataflash spi32766.0: AT45DB642x (8448 KBytes)
pagesize 1056 bytes (OTP)

so;
Tested-by: Joachim Eastwood <redacted>

regards
Joachim Eastwood