On 03/17/2015 02:32 AM, Paul Walmsley wrote:
For Tegra132 and later chips, we can now use the correct hardware base
address for the Tegra AHB IP block in the DT data. Update the DT binding
documentation to reflect this change.
diff --git
a/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra20-ahb.txt
b/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra20-ahb.txt
index 067c979..7692b4c 100644
--- a/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra20-ahb.txt
+++ b/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra20-ahb.txt
@@ -2,10 +2,15 @@ NVIDIA Tegra AHB
Required properties:
- compatible : For Tegra20, must contain "nvidia,tegra20-ahb". For
- 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)
+ Tegra30, must contain "nvidia,tegra30-ahb". For Tegra114 and Tegra124,
must
+ contain '"nvidia,<chip>-ahb", "nvidia,tegra30-ahb"' where <chip> is
tegra114
+ or tegra124. For Tegra132, the compatible string must contain
+ "nvidia,tegra132-ahb".
+
+- reg : Should contain 1 register ranges(address and length). On Tegra20,
+ Tegra30, Tegra114, and Tegra124 chips, the low byte of the physical base
+ address of the IP block must end in 0x04. On DT files for later chips,
the
+ actual hardware base address of the IP block should be used.
A table-based approach rather than prose might make this more legible?
- compatible: Must contain the following:
Tegra20: "nvidia,tegra20-ahb"
Tegra30: "nvidia,tegra30-ahb"
Tegra114: "nvidia,tegra114-ahb", "nvidia,tegra30-ahb"
Tegra124: "nvidia,tegra124-ahb", "nvidia,tegra30-ahb"
Tegra132: "nvidia,tegra132-ahb"
Tegra210: "nvidia,tegra210-ahb", "nvidia,tegra132-ahb"
With any luck, we can extend that final item for future chips to be:
Tegra210, TegraNNN:
"nvidia,tegra<chip>-ahb", "nvidia,tegra132-ahb"
Perhaps we format the 114/124 entry that way too.
