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author | Hiroshi DOYU <hdoyu@nvidia.com> | 2012-05-07 12:24:48 +0200 |
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committer | Stephen Warren <swarren@nvidia.com> | 2012-05-08 13:30:49 -0600 |
commit | 87d0bab2cba3c31624b80cc68bcf5e29ef969458 (patch) | |
tree | 1bdf28fd56102096eba91cec450a5b2cced5ce75 /Documentation/devicetree/bindings/arm/tegra/nvidia,tegra20-ahb.txt | |
parent | e816b57a337ea3b755de72bec38c10c864f23015 (diff) | |
download | op-kernel-dev-87d0bab2cba3c31624b80cc68bcf5e29ef969458.zip op-kernel-dev-87d0bab2cba3c31624b80cc68bcf5e29ef969458.tar.gz |
ARM: tegra: Add Tegra AHB driver
Tegra AHB Bus conforms to the AMBA Specification (Rev 2.0) Advanced
High-performance Bus (AHB) architecture.
The AHB Arbiter controls AHB bus master arbitration. This effectively
forms a second level of arbitration for access to the memory
controller through the AHB Slave Memory device. The AHB pre-fetch
logic can be configured to enhance performance for devices doing
sequential access. Each AHB master is assigned to either the high or
low priority bin. Both Tegra20/30 have this AHB bus.
Some of configuration params could be passed from DT too if needed.
Signed-off-by: Hiroshi DOYU <hdoyu@nvidia.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Cc: Felipe Balbi <balbi@ti.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Diffstat (limited to 'Documentation/devicetree/bindings/arm/tegra/nvidia,tegra20-ahb.txt')
-rw-r--r-- | Documentation/devicetree/bindings/arm/tegra/nvidia,tegra20-ahb.txt | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra20-ahb.txt b/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra20-ahb.txt new file mode 100644 index 0000000..234406d --- /dev/null +++ b/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra20-ahb.txt @@ -0,0 +1,11 @@ +NVIDIA Tegra AHB + +Required properties: +- compatible : "nvidia,tegra20-ahb" or "nvidia,tegra30-ahb" +- reg : Should contain 1 register ranges(address and length) + +Example: + ahb: ahb@6000c004 { + compatible = "nvidia,tegra20-ahb"; + reg = <0x6000c004 0x10c>; /* AHB Arbitration + Gizmo Controller */ + }; |