diff options
author | Michal Simek <[email protected]> | 2023-12-21 15:05:09 +0100 |
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committer | Greg Kroah-Hartman <[email protected]> | 2024-01-04 16:23:20 +0100 |
commit | da680c045fde3c441bb0df5780f4ffc68327797d (patch) | |
tree | 027e03d88a71e360fe3d60e577a5195d26c6ae1e | |
parent | 83e571f054cd742eb9a46d46ef05193904adf53f (diff) |
dt-bindings: serial: Describe ARM dcc interface
Debug Communication Channel (DCC) provides the way how to pass data between
target CPU and host via JTAG interface. Every CPU has own interface for
communication via dbgdtrtx_el0 and dbgdtrrx_el0 registers.
Signed-off-by: Michal Simek <[email protected]>
Reviewed-by: Rob Herring <[email protected]>
Link: https://lore.kernel.org/r/9d7e85914eb1cdb313b28cb019093a84dd9b4773.1703167505.git.michal.simek@amd.com
Signed-off-by: Greg Kroah-Hartman <[email protected]>
-rw-r--r-- | Documentation/devicetree/bindings/serial/arm,dcc.yaml | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/serial/arm,dcc.yaml b/Documentation/devicetree/bindings/serial/arm,dcc.yaml new file mode 100644 index 000000000000..fd0589356617 --- /dev/null +++ b/Documentation/devicetree/bindings/serial/arm,dcc.yaml @@ -0,0 +1,30 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/serial/arm,dcc.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: ARM DCC (Data communication channel) serial emulation + +maintainers: + - Michal Simek <[email protected]> + +description: | + ARM DCC (Data communication channel) serial emulation interface available + via JTAG can be also used as one of serial line tightly coupled with every + ARM CPU available in the system. + +properties: + compatible: + const: arm,dcc + +required: + - compatible + +additionalProperties: false + +examples: + - | + serial { + compatible = "arm,dcc"; + }; |