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-rw-r--r--Documentation/devicetree/bindings/arm/tegra/nvidia,tegra20-ahb.txt7
1 files changed, 5 insertions, 2 deletions
diff --git a/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra20-ahb.txt b/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra20-ahb.txt
index 067c9790062f..9a4295b54539 100644
--- a/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra20-ahb.txt
+++ b/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra20-ahb.txt
@@ -5,9 +5,12 @@ Required properties:
Tegra30, must contain "nvidia,tegra30-ahb". Otherwise, must contain
'"nvidia,<chip>-ahb", "nvidia,tegra30-ahb"' where <chip> is tegra124,
tegra132, or tegra210.
-- reg : Should contain 1 register ranges(address and length)
+- reg : Should contain 1 register ranges(address and length). For
+ Tegra20, Tegra30, and Tegra114 chips, the value must be <0x6000c004
+ 0x10c>. For Tegra124, Tegra132 and Tegra210 chips, the value should
+ be be <0x6000c000 0x150>.
-Example:
+Example (for a Tegra20 chip):
ahb: ahb@6000c004 {
compatible = "nvidia,tegra20-ahb";
reg = <0x6000c004 0x10c>; /* AHB Arbitration + Gizmo Controller */
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