From: Stephen Warren <swarren-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
To: Olof Johansson <olof-nZhT3qVonbNeoWH0uzbU5w@public.gmane.org>,
Colin Cross <ccross-z5hGa2qSFaRBDgjK7y7TUQ@public.gmane.org>
Cc: linux-tegra-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org,
devicetree-discuss-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org,
alsa-devel-K7yf7f+aM1XWsZ/bQMPhNw@public.gmane.org,
Stephen Warren <swarren-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
Subject: [PATCH V2 1/4] ARM: dt: tegra: Add Tegra APB DMA device tree binding
Date: Wed, 11 Jan 2012 16:09:54 -0700 [thread overview]
Message-ID: <1326323397-23931-1-git-send-email-swarren@nvidia.com> (raw)
Document binding, and add the node to tegra*.dtsi.
The driver isn't actually instantiated from this node yet, but the I2S
binding will rely on being able to refer to the APB DMA node using a
phandle.
Signed-off-by: Stephen Warren <swarren-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
---
v2: Added this to tegra30.dtsi too. Fixed interrupt IDs. Fixed reg to
include all the per-channel registers.
---
.../devicetree/bindings/dma/tegra20-apbdma.txt | 30 ++++++++++++++++
arch/arm/boot/dts/tegra20.dtsi | 21 +++++++++++
arch/arm/boot/dts/tegra30.dtsi | 37 ++++++++++++++++++++
3 files changed, 88 insertions(+), 0 deletions(-)
create mode 100644 Documentation/devicetree/bindings/dma/tegra20-apbdma.txt
diff --git a/Documentation/devicetree/bindings/dma/tegra20-apbdma.txt b/Documentation/devicetree/bindings/dma/tegra20-apbdma.txt
new file mode 100644
index 0000000..90fa7da
--- /dev/null
+++ b/Documentation/devicetree/bindings/dma/tegra20-apbdma.txt
@@ -0,0 +1,30 @@
+* NVIDIA Tegra APB DMA controller
+
+Required properties:
+- compatible: Should be "nvidia,<chip>-apbdma"
+- reg: Should contain DMA registers location and length. This shuld include
+ all of the per-channel registers.
+- interrupts: Should contain all of the per-channel DMA interrupts.
+
+Examples:
+
+apbdma: dma@6000a000 {
+ compatible = "nvidia,tegra20-apbdma";
+ reg = <0x6000a000 0x1200>;
+ interrupts = < 0 136 0x04
+ 0 137 0x04
+ 0 138 0x04
+ 0 139 0x04
+ 0 140 0x04
+ 0 141 0x04
+ 0 142 0x04
+ 0 143 0x04
+ 0 144 0x04
+ 0 145 0x04
+ 0 146 0x04
+ 0 147 0x04
+ 0 148 0x04
+ 0 149 0x04
+ 0 150 0x04
+ 0 151 0x04 >;
+};
diff --git a/arch/arm/boot/dts/tegra20.dtsi b/arch/arm/boot/dts/tegra20.dtsi
index 853a5c6..0a5d092 100644
--- a/arch/arm/boot/dts/tegra20.dtsi
+++ b/arch/arm/boot/dts/tegra20.dtsi
@@ -12,6 +12,27 @@
< 0x50040100 0x0100 >;
};
+ apbdma: dma@6000a000 {
+ compatible = "nvidia,tegra20-apbdma";
+ reg = <0x6000a000 0x1200>;
+ interrupts = < 0 104 0x04
+ 0 105 0x04
+ 0 106 0x04
+ 0 107 0x04
+ 0 108 0x04
+ 0 109 0x04
+ 0 110 0x04
+ 0 111 0x04
+ 0 112 0x04
+ 0 113 0x04
+ 0 114 0x04
+ 0 115 0x04
+ 0 116 0x04
+ 0 117 0x04
+ 0 118 0x04
+ 0 119 0x04 >;
+ };
+
i2c@7000c000 {
#address-cells = <1>;
#size-cells = <0>;
diff --git a/arch/arm/boot/dts/tegra30.dtsi b/arch/arm/boot/dts/tegra30.dtsi
index 368cbb3..537953a 100644
--- a/arch/arm/boot/dts/tegra30.dtsi
+++ b/arch/arm/boot/dts/tegra30.dtsi
@@ -12,6 +12,43 @@
< 0x50040100 0x0100 >;
};
+ apbdma: dma@6000a000 {
+ compatible = "nvidia,tegra30-apbdma", "nvidia,tegra20-apbdma";
+ reg = <0x6000a000 0x1400>;
+ interrupts = < 0 104 0x04
+ 0 105 0x04
+ 0 106 0x04
+ 0 107 0x04
+ 0 108 0x04
+ 0 109 0x04
+ 0 110 0x04
+ 0 111 0x04
+ 0 112 0x04
+ 0 113 0x04
+ 0 114 0x04
+ 0 115 0x04
+ 0 116 0x04
+ 0 117 0x04
+ 0 118 0x04
+ 0 119 0x04
+ 0 128 0x04
+ 0 129 0x04
+ 0 130 0x04
+ 0 131 0x04
+ 0 132 0x04
+ 0 133 0x04
+ 0 134 0x04
+ 0 135 0x04
+ 0 136 0x04
+ 0 137 0x04
+ 0 138 0x04
+ 0 139 0x04
+ 0 140 0x04
+ 0 141 0x04
+ 0 142 0x04
+ 0 143 0x04 >;
+ };
+
i2c@7000c000 {
#address-cells = <1>;
#size-cells = <0>;
--
1.7.0.4
next reply other threads:[~2012-01-11 23:09 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-01-11 23:09 Stephen Warren [this message]
[not found] ` <1326323397-23931-1-git-send-email-swarren-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2012-01-11 23:09 ` [PATCH V2 2/4] ARM: dt: tegra: Modify I2S nodes to match binding Stephen Warren
2012-01-11 23:09 ` [PATCH V2 3/4] ARM: dt: tegra: Add labels for I2S controllers Stephen Warren
2012-01-11 23:09 ` [PATCH V2 4/4] ARM: dt: tegra: Enable audio on WM8903 boards, disable others Stephen Warren
2012-01-24 8:42 ` [PATCH V2 1/4] ARM: dt: tegra: Add Tegra APB DMA device tree binding Olof Johansson
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