powerpc/fsl/dma.txt

4    This is a little-endian 4-channel DMA controller, used in Freescale mpc83xx
17 - DMA channel nodes:
18         - compatible        : must include "fsl,elo-dma-channel"
20         - reg               : DMA channel specific registers
21         - cell-index        : DMA channel index starts at 0.
24         - interrupts        : interrupt specifier for DMA channel IRQ
38 		dma-channel@0 {
39 			compatible = "fsl,mpc8349-dma-channel", "fsl,elo-dma-channel";
45 		dma-channel@80 {
46 			compatible = "fsl,mpc8349-dma-channel", "fsl,elo-dma-channel";
52 		dma-channel@100 {
53 			compatible = "fsl,mpc8349-dma-channel", "fsl,elo-dma-channel";
59 		dma-channel@180 {
60 			compatible = "fsl,mpc8349-dma-channel", "fsl,elo-dma-channel";
69    This is a 4-channel DMA controller with extended addresses and chaining,
83 - DMA channel nodes:
84         - compatible        : must include "fsl,eloplus-dma-channel"
86         - cell-index        : DMA channel index starts at 0.
87         - reg               : DMA channel specific registers
88         - interrupts        : interrupt specifier for DMA channel IRQ
98 		dma-channel@0 {
99 			compatible = "fsl,mpc8540-dma-channel", "fsl,eloplus-dma-channel";
105 		dma-channel@80 {
106 			compatible = "fsl,mpc8540-dma-channel", "fsl,eloplus-dma-channel";
112 		dma-channel@100 {
113 			compatible = "fsl,mpc8540-dma-channel", "fsl,eloplus-dma-channel";
119 		dma-channel@180 {
120 			compatible = "fsl,mpc8540-dma-channel", "fsl,eloplus-dma-channel";
137                       i.e. DGSR0 which includes status for channel 1~4, and
138                       DGSR1 for channel 5~8
142 - DMA channel nodes:
143         - compatible        : must include "fsl,eloplus-dma-channel"
144         - reg               : DMA channel specific registers
145         - interrupts        : interrupt specifier for DMA channel IRQ
155 	dma-channel@0 {
156 		compatible = "fsl,eloplus-dma-channel";
160 	dma-channel@80 {
161 		compatible = "fsl,eloplus-dma-channel";
165 	dma-channel@100 {
166 		compatible = "fsl,eloplus-dma-channel";
170 	dma-channel@180 {
171 		compatible = "fsl,eloplus-dma-channel";
175 	dma-channel@300 {
176 		compatible = "fsl,eloplus-dma-channel";
180 	dma-channel@380 {
181 		compatible = "fsl,eloplus-dma-channel";
185 	dma-channel@400 {
186 		compatible = "fsl,eloplus-dma-channel";
190 	dma-channel@480 {
191 		compatible = "fsl,eloplus-dma-channel";
197 Note on DMA channel compatible properties: The compatible property must say
198 "fsl,elo-dma-channel" or "fsl,eloplus-dma-channel" to be used by the Elo DMA
199 driver (fsldma).  Any DMA channel used by fsldma cannot be used by another
201 channel that should be used for another driver should not use
202 "fsl,elo-dma-channel" or "fsl,eloplus-dma-channel".  For the SSI drivers, for
203 example, the compatible property should be "fsl,ssi-dma-channel".  See ssi.txt