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Diffstat (limited to 'rr-cache/3b5769cf96e6c1ad9c66e9a9eca1adef3f180dde/preimage')
-rw-r--r-- | rr-cache/3b5769cf96e6c1ad9c66e9a9eca1adef3f180dde/preimage | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/rr-cache/3b5769cf96e6c1ad9c66e9a9eca1adef3f180dde/preimage b/rr-cache/3b5769cf96e6c1ad9c66e9a9eca1adef3f180dde/preimage new file mode 100644 index 0000000..f6ba264 --- /dev/null +++ b/rr-cache/3b5769cf96e6c1ad9c66e9a9eca1adef3f180dde/preimage @@ -0,0 +1,43 @@ +Command DB +--------- + +Command DB is a database that provides a mapping between resource key and the +resource address for a system resource managed by a remote processor. The data +is stored in a shared memory region and is loaded by the remote processor. + +Some of the Qualcomm Technologies Inc SoC's have hardware accelerators for +controlling shared resources. Depending on the board configuration the shared +resource properties may change. These properties are dynamically probed by the +remote processor and made available in the shared memory. + +The bindings for Command DB is specified in the reserved-memory section in +devicetree. The devicetree representation of the command DB driver should be: + +Properties: +- compatible: + Usage: required + Value type: <string> + Definition: Should be "qcom,cmd-db" + +- reg: + Usage: required + Value type: <prop encoded array> + Definition: The register address that points to the actual location of + the Command DB in memory. + +Example: + + reserved-memory { + [...] +<<<<<<< + qcom,cmd-db@85fe0000 { + reg = <0x0 0x85fe0000 0x0 0x20000>; + compatible = "qcom,cmd-db"; +======= + reserved-memory@85fe0000 { + reg = <0x0 0x85fe0000 0x0 0x20000>; + compatible = "qcom,cmd-db"; + no-map; +>>>>>>> + }; + }; |