diff options
| author | Shengjiu Wang <shengjiu.wang@freescale.com> | 2014-09-16 13:39:06 +0800 |
|---|---|---|
| committer | Nitin Garg <nitin.garg@freescale.com> | 2015-04-14 14:00:16 -0500 |
| commit | 82a606e594f2b6e00e94af0c03bdf040d796d560 (patch) | |
| tree | a6f61ca968c4e36161d5d0a62e08af5bdd96fef0 /Documentation | |
| parent | 75ce38a9e4d0052b52c20b18566c4c41a791f99c (diff) | |
ENGR00331635-1: dma: imx-sdma: Add imx6sx platform support
The new Solo X has more requirements for SDMA events. So it creates a event mux
to remap most of event numbers in GPR (General Purpose Register). If we want to
use SDMA support for those module who do not get the even number as default, we
need to configure GPR first.
Thus this patch adds this support of GPR event remapping configuration to the
SDMA driver.
Signed-off-by: Shengjiu Wang <shengjiu.wang@freescale.com>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/devicetree/bindings/dma/fsl-imx-sdma.txt | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/dma/fsl-imx-sdma.txt b/Documentation/devicetree/bindings/dma/fsl-imx-sdma.txt index 62f0d1b275ab..7074f1cc02eb 100644 --- a/Documentation/devicetree/bindings/dma/fsl-imx-sdma.txt +++ b/Documentation/devicetree/bindings/dma/fsl-imx-sdma.txt @@ -16,6 +16,12 @@ Required properties: - #dma-cells : Must be <3>. The first cell specifies the DMA request/event ID. See details below about the second and third cell. +- gpr : The phandle to general purpose register node. +- fsl,sdma-event-remap : Register bits of sdma event remap, the format is + <reg shift val>. + reg is the gpr register offset. + shift is the bit offset of event remap. + val is the value of the bit to be set. - fsl,sdma-ram-script-name : Should contain the full path of SDMA RAM scripts firmware |