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ARM: dts: add generic DMA device tree binding for mxs-dma

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Add generic DMA device tree binding for mxs-dma.  The changes include:

 * Add channel interrupts into DMA controller nodes
 * Add properties '#dma-cells' and 'dma-channels' for DMA controller nodes
 * And properties 'dmas' and 'dma-names' for DMA client nodes
 * Update mxs-dma device tree binding doc

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
This commit is contained in:
Shawn Guo 2013-02-25 21:56:56 +08:00
parent d8880a126d
commit f30fb03d4d
4 changed files with 148 additions and 9 deletions
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49
Documentation/devicetree/bindings/dma/fsl-mxs-dma.txt
View File

@ -3,17 +3,58 @@
Required properties:
- compatible : Should be "fsl,<chip>-dma-apbh" or "fsl,<chip>-dma-apbx"
- reg : Should contain registers location and length
- interrupts : Should contain the interrupt numbers of DMA channels.
If a channel is empty/reserved, 0 should be filled in place.
- #dma-cells : Must be <1>. The number cell specifies the channel ID.
- dma-channels : Number of channels supported by the DMA controller
Optional properties:
- interrupt-names : Name of DMA channel interrupts
Supported chips:
imx23, imx28.
Examples:
dma-apbh@80004000 {
dma_apbh: dma-apbh@80004000 {
compatible = "fsl,imx28-dma-apbh";
reg = <0x80004000 2000>;
reg = <0x80004000 0x2000>;
interrupts = <82 83 84 85
88 88 88 88
88 88 88 88
87 86 0 0>;
interrupt-names = "ssp0", "ssp1", "ssp2", "ssp3",
"gpmi0", "gmpi1", "gpmi2", "gmpi3",
"gpmi4", "gmpi5", "gpmi6", "gmpi7",
"hsadc", "lcdif", "empty", "empty";
#dma-cells = <1>;
dma-channels = <16>;
};
dma-apbx@80024000 {
dma_apbx: dma-apbx@80024000 {
compatible = "fsl,imx28-dma-apbx";
reg = <0x80024000 2000>;
reg = <0x80024000 0x2000>;
interrupts = <78 79 66 0
80 81 68 69
70 71 72 73
74 75 76 77>;
interrupt-names = "auart4-rx", "aurat4-tx", "spdif-tx", "empty",
"saif0", "saif1", "i2c0", "i2c1",
"auart0-rx", "auart0-tx", "auart1-rx", "auart1-tx",
"auart2-rx", "auart2-tx", "auart3-rx", "auart3-tx";
#dma-cells = <1>;
dma-channels = <16>;
};
DMA clients connected to the MXS DMA controller must use the format
described in the dma.txt file.
Examples:
auart0: serial@8006a000 {
compatible = "fsl,imx28-auart", "fsl,imx23-auart";
reg = <0x8006a000 0x2000>;
interrupts = <112>;
dmas = <&dma_apbx 8>, <&dma_apbx 9>;
dma-names = "rx", "tx";
};

42
arch/arm/boot/dts/imx23.dtsi
View File

@ -49,9 +49,15 @@
reg = <0x80000000 0x2000>;
};
dma-apbh@80004000 {
dma_apbh: dma-apbh@80004000 {
compatible = "fsl,imx23-dma-apbh";
reg = <0x80004000 0x2000>;
interrupts = <0 14 20 0
13 13 13 13>;
interrupt-names = "empty", "ssp0", "ssp1", "empty",
"gpmi0", "gpmi1", "gpmi2", "gpmi3";
#dma-cells = <1>;
dma-channels = <8>;
clocks = <&clks 15>;
};
@ -70,6 +76,8 @@
interrupt-names = "gpmi-dma", "bch";
clocks = <&clks 34>;
clock-names = "gpmi_io";
dmas = <&dma_apbh 4>;
dma-names = "rx-tx";
fsl,gpmi-dma-channel = <4>;
status = "disabled";
};
@ -78,6 +86,8 @@
reg = <0x80010000 0x2000>;
interrupts = <15 14>;
clocks = <&clks 33>;
dmas = <&dma_apbh 1>;
dma-names = "rx-tx";
fsl,ssp-dma-channel = <1>;
status = "disabled";
};
@ -305,9 +315,19 @@
status = "disabled";
};
dma-apbx@80024000 {
dma_apbx: dma-apbx@80024000 {
compatible = "fsl,imx23-dma-apbx";
reg = <0x80024000 0x2000>;
interrupts = <7 5 9 26
19 0 25 23
60 58 9 0
0 0 0 0>;
interrupt-names = "audio-adc", "audio-dac", "spdif-tx", "i2c",
"saif0", "empty", "auart0-rx", "auart0-tx",
"auart1-rx", "auart1-tx", "saif1", "empty",
"empty", "empty", "empty", "empty";
#dma-cells = <1>;
dma-channels = <16>;
clocks = <&clks 16>;
};
@ -344,6 +364,8 @@
reg = <0x80034000 0x2000>;
interrupts = <2 20>;
clocks = <&clks 33>;
dmas = <&dma_apbh 2>;
dma-names = "rx-tx";
fsl,ssp-dma-channel = <2>;
status = "disabled";
};
@ -369,6 +391,8 @@
saif0: saif@80042000 {
reg = <0x80042000 0x2000>;
dmas = <&dma_apbx 4>;
dma-names = "rx-tx";
status = "disabled";
};
@ -379,16 +403,22 @@
saif1: saif@80046000 {
reg = <0x80046000 0x2000>;
dmas = <&dma_apbx 10>;
dma-names = "rx-tx";
status = "disabled";
};
audio-out@80048000 {
reg = <0x80048000 0x2000>;
dmas = <&dma_apbx 1>;
dma-names = "tx";
status = "disabled";
};
audio-in@8004c000 {
reg = <0x8004c000 0x2000>;
dmas = <&dma_apbx 0>;
dma-names = "rx";
status = "disabled";
};
@ -401,11 +431,15 @@
spdif@80054000 {
reg = <0x80054000 2000>;
dmas = <&dma_apbx 2>;
dma-names = "tx";
status = "disabled";
};
i2c@80058000 {
reg = <0x80058000 0x2000>;
dmas = <&dma_apbx 3>;
dma-names = "rx-tx";
status = "disabled";
};
@ -436,6 +470,8 @@
reg = <0x8006c000 0x2000>;
interrupts = <24 25 23>;
clocks = <&clks 32>;
dmas = <&dma_apbx 6>, <&dma_apbx 7>;
dma-names = "rx", "tx";
status = "disabled";
};
@ -444,6 +480,8 @@
reg = <0x8006e000 0x2000>;
interrupts = <59 60 58>;
clocks = <&clks 32>;
dmas = <&dma_apbx 8>, <&dma_apbx 9>;
dma-names = "rx", "tx";
status = "disabled";
};

58
arch/arm/boot/dts/imx28.dtsi
View File

@ -61,12 +61,24 @@
hsadc@80002000 {
reg = <0x80002000 0x2000>;
interrupts = <13 87>;
dmas = <&dma_apbh 12>;
dma-names = "rx";
status = "disabled";
};
dma-apbh@80004000 {
dma_apbh: dma-apbh@80004000 {
compatible = "fsl,imx28-dma-apbh";
reg = <0x80004000 0x2000>;
interrupts = <82 83 84 85
88 88 88 88
88 88 88 88
87 86 0 0>;
interrupt-names = "ssp0", "ssp1", "ssp2", "ssp3",
"gpmi0", "gmpi1", "gpmi2", "gmpi3",
"gpmi4", "gmpi5", "gpmi6", "gmpi7",
"hsadc", "lcdif", "empty", "empty";
#dma-cells = <1>;
dma-channels = <16>;
clocks = <&clks 25>;
};
@ -86,6 +98,8 @@
interrupt-names = "gpmi-dma", "bch";
clocks = <&clks 50>;
clock-names = "gpmi_io";
dmas = <&dma_apbh 4>;
dma-names = "rx-tx";
fsl,gpmi-dma-channel = <4>;
status = "disabled";
};
@ -96,6 +110,8 @@
reg = <0x80010000 0x2000>;
interrupts = <96 82>;
clocks = <&clks 46>;
dmas = <&dma_apbh 0>;
dma-names = "rx-tx";
fsl,ssp-dma-channel = <0>;
status = "disabled";
};
@ -106,6 +122,8 @@
reg = <0x80012000 0x2000>;
interrupts = <97 83>;
clocks = <&clks 47>;
dmas = <&dma_apbh 1>;
dma-names = "rx-tx";
fsl,ssp-dma-channel = <1>;
status = "disabled";
};
@ -116,6 +134,8 @@
reg = <0x80014000 0x2000>;
interrupts = <98 84>;
clocks = <&clks 48>;
dmas = <&dma_apbh 2>;
dma-names = "rx-tx";
fsl,ssp-dma-channel = <2>;
status = "disabled";
};
@ -126,6 +146,8 @@
reg = <0x80016000 0x2000>;
interrupts = <99 85>;
clocks = <&clks 49>;
dmas = <&dma_apbh 3>;
dma-names = "rx-tx";
fsl,ssp-dma-channel = <3>;
status = "disabled";
};
@ -658,9 +680,19 @@
status = "disabled";
};
dma-apbx@80024000 {
dma_apbx: dma-apbx@80024000 {
compatible = "fsl,imx28-dma-apbx";
reg = <0x80024000 0x2000>;
interrupts = <78 79 66 0
80 81 68 69
70 71 72 73
74 75 76 77>;
interrupt-names = "auart4-rx", "aurat4-tx", "spdif-tx", "empty",
"saif0", "saif1", "i2c0", "i2c1",
"auart0-rx", "auart0-tx", "auart1-rx", "auart1-tx",
"auart2-rx", "auart2-tx", "auart3-rx", "auart3-tx";
#dma-cells = <1>;
dma-channels = <16>;
clocks = <&clks 26>;
};
@ -692,6 +724,8 @@
reg = <0x80030000 0x2000>;
interrupts = <38 86>;
clocks = <&clks 55>;
dmas = <&dma_apbh 13>;
dma-names = "rx";
status = "disabled";
};
@ -767,6 +801,8 @@
reg = <0x80042000 0x2000>;
interrupts = <59 80>;
clocks = <&clks 53>;
dmas = <&dma_apbx 4>;
dma-names = "rx-tx";
fsl,saif-dma-channel = <4>;
status = "disabled";
};
@ -781,6 +817,8 @@
reg = <0x80046000 0x2000>;
interrupts = <58 81>;
clocks = <&clks 54>;
dmas = <&dma_apbx 5>;
dma-names = "rx-tx";
fsl,saif-dma-channel = <5>;
status = "disabled";
};
@ -796,6 +834,8 @@
spdif@80054000 {
reg = <0x80054000 0x2000>;
interrupts = <45 66>;
dmas = <&dma_apbx 2>;
dma-names = "tx";
status = "disabled";
};
@ -812,6 +852,8 @@
reg = <0x80058000 0x2000>;
interrupts = <111 68>;
clock-frequency = <100000>;
dmas = <&dma_apbx 6>;
dma-names = "rx-tx";
fsl,i2c-dma-channel = <6>;
status = "disabled";
};
@ -823,6 +865,8 @@
reg = <0x8005a000 0x2000>;
interrupts = <110 69>;
clock-frequency = <100000>;
dmas = <&dma_apbx 7>;
dma-names = "rx-tx";
fsl,i2c-dma-channel = <7>;
status = "disabled";
};
@ -847,6 +891,8 @@
compatible = "fsl,imx28-auart", "fsl,imx23-auart";
reg = <0x8006a000 0x2000>;
interrupts = <112 70 71>;
dmas = <&dma_apbx 8>, <&dma_apbx 9>;
dma-names = "rx", "tx";
fsl,auart-dma-channel = <8 9>;
clocks = <&clks 45>;
status = "disabled";
@ -856,6 +902,8 @@
compatible = "fsl,imx28-auart", "fsl,imx23-auart";
reg = <0x8006c000 0x2000>;
interrupts = <113 72 73>;
dmas = <&dma_apbx 10>, <&dma_apbx 11>;
dma-names = "rx", "tx";
clocks = <&clks 45>;
status = "disabled";
};
@ -864,6 +912,8 @@
compatible = "fsl,imx28-auart", "fsl,imx23-auart";
reg = <0x8006e000 0x2000>;
interrupts = <114 74 75>;
dmas = <&dma_apbx 12>, <&dma_apbx 13>;
dma-names = "rx", "tx";
clocks = <&clks 45>;
status = "disabled";
};
@ -872,6 +922,8 @@
compatible = "fsl,imx28-auart", "fsl,imx23-auart";
reg = <0x80070000 0x2000>;
interrupts = <115 76 77>;
dmas = <&dma_apbx 14>, <&dma_apbx 15>;
dma-names = "rx", "tx";
clocks = <&clks 45>;
status = "disabled";
};
@ -880,6 +932,8 @@
compatible = "fsl,imx28-auart", "fsl,imx23-auart";
reg = <0x80072000 0x2000>;
interrupts = <116 78 79>;
dmas = <&dma_apbx 0>, <&dma_apbx 1>;
dma-names = "rx", "tx";
clocks = <&clks 45>;
status = "disabled";
};

8
arch/arm/boot/dts/imx6qdl.dtsi
View File

@ -65,9 +65,13 @@
interrupt-parent = <&intc>;
ranges;
dma-apbh@00110000 {
dma_apbh: dma-apbh@00110000 {
compatible = "fsl,imx6q-dma-apbh", "fsl,imx28-dma-apbh";
reg = <0x00110000 0x2000>;
interrupts = <0 13 0x04>, <0 13 0x04>, <0 13 0x04>, <0 13 0x04>;
interrupt-names = "gpmi0", "gpmi1", "gpmi2", "gpmi3";
#dma-cells = <1>;
dma-channels = <4>;
clocks = <&clks 106>;
};
@ -83,6 +87,8 @@
<&clks 150>, <&clks 149>;
clock-names = "gpmi_io", "gpmi_apb", "gpmi_bch",
"gpmi_bch_apb", "per1_bch";
dmas = <&dma_apbh 0>;
dma-names = "rx-tx";
fsl,gpmi-dma-channel = <0>;
status = "disabled";
};