Using DMA interrupt on MPC8313
jumpingProgrammer
rabbitzp at 163.com
Tue Jun 24 15:54:28 EST 2008
I use this in 8313erdb.dts, but can not find DMA info in
/proc/interrupts.why?
dma at 8030 {
#address-cells = <1>;
#size-cells = <1>;
compatible = "fsl,elo-dma";
cell-index = <0>;
reg = <8030 2d0>; /* DMA general status register */
ranges = <0 8100 200>;
dma-channel at 0 {
compatible = "fsl,elo-dma-channel";
cell-index = <0>;
reg = <0 80>;
interrupt-parent = <700>;
interrupts = <47 8>;
};
dma-channel at 1 {
compatible = "fsl,elo-dma-channel";
cell-index = <1>;
reg = <80 80>;
interrupt-parent = <700>;
interrupts = <47 8>;
};
dma-channel at 2 {
compatible = "fsl,elo-dma-channel";
cell-index = <2>;
reg = <100 80>;
interrupt-parent = <700>;
interrupts = <47 8>;
};
dma-channel at 3 {
compatible = "fsl,elo-dma-channel";
cell-index = <3>;
reg = <180 80>;
interrupt-parent = <700>;
interrupts = <47 8>;
};
}
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