On Monday 14 March 2016 02:31 PM, Tero Kristo wrote:
> EDMA was allocating DMA channels 32 and 33 for memcpy usage, out of which
> channel 33 is actually used by DES crypto engine. This bad allocation of
> the channel causes a crash in the DES crypto engine, as the channel
> gets configured for memcpy usage instead of hardware <-> memory DMA.
>
> Fixed by allocating DMA channels 58 and 59 for memcpy usage (I2C0 RX/TX),
> which are not used by anybody.
Reviewed-by: Lokesh Vutla <lokeshvutla@xxxxxx>
Thanks and regards,
Lokesh
>
> Signed-off-by: Tero Kristo <t-kristo@xxxxxx>
> Suggested-by: Peter Ujfalusi <peter.ujfalusi@xxxxxx>
> ---
> arch/arm/boot/dts/am4372.dtsi | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/arch/arm/boot/dts/am4372.dtsi b/arch/arm/boot/dts/am4372.dtsi
> index 92068fb..cdd3d78 100644
> --- a/arch/arm/boot/dts/am4372.dtsi
> +++ b/arch/arm/boot/dts/am4372.dtsi
> @@ -207,7 +207,7 @@
> ti,tptcs = <&edma_tptc0 7>, <&edma_tptc1 5>,
> <&edma_tptc2 0>;
>
> - ti,edma-memcpy-channels = <32 33>;
> + ti,edma-memcpy-channels = <58 59>;
> };
>
> edma_tptc0: tptc@49800000 {
>
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