diff options
| author | Nicolin Chen <Guangyu.Chen@freescale.com> | 2014-04-08 06:34:56 -0400 |
|---|---|---|
| committer | Nitin Garg <nitin.garg@freescale.com> | 2014-04-16 09:58:18 -0400 |
| commit | 91b488d016766c6322ea09d1872cdeb0c8dfddaa (patch) | |
| tree | 0afd607463141ba3ecec8307c899b4146199d0ad /Documentation | |
| parent | cf0e709ba674b3f82b6b5ee5c3bd5b3534c8b6b6 (diff) | |
ENGR00307635-2 dmaengine: 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.
Acked-by: Robin Gong <b38343@freescale.com>
Acked-by: Huang Shijie <b32955@freescale.com>
Signed-off-by: Nicolin Chen <Guangyu.Chen@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 c07f61f370d3..62e720065418 100644 --- a/Documentation/devicetree/bindings/dma/fsl-imx-sdma.txt +++ b/Documentation/devicetree/bindings/dma/fsl-imx-sdma.txt | |||
| @@ -7,6 +7,12 @@ Required properties: | |||
| 7 | - #dma-cells : Must be <3>. | 7 | - #dma-cells : Must be <3>. |
| 8 | The first cell specifies the DMA request/event ID. See details below | 8 | The first cell specifies the DMA request/event ID. See details below |
| 9 | about the second and third cell. | 9 | about the second and third cell. |
| 10 | - gpr : The phandle to general purpose register node. | ||
| 11 | - fsl,sdma-event-remap : Register bits of sdma event remap, the format is | ||
| 12 | <reg shift val>. | ||
| 13 | reg is the gpr register offset. | ||
| 14 | shift is the bit offset of event remap. | ||
| 15 | val is the value of the bit to be set. | ||
| 10 | - fsl,sdma-ram-script-name : Should contain the full path of SDMA RAM | 16 | - fsl,sdma-ram-script-name : Should contain the full path of SDMA RAM |
| 11 | scripts firmware | 17 | scripts firmware |
| 12 | 18 | ||