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https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
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da680c045f
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 <michal.simek@amd.com> Reviewed-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/9d7e85914eb1cdb313b28cb019093a84dd9b4773.1703167505.git.michal.simek@amd.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
31 lines
671 B
YAML
31 lines
671 B
YAML
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/serial/arm,dcc.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: ARM DCC (Data communication channel) serial emulation
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maintainers:
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- Michal Simek <michal.simek@amd.com>
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description: |
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ARM DCC (Data communication channel) serial emulation interface available
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via JTAG can be also used as one of serial line tightly coupled with every
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ARM CPU available in the system.
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properties:
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compatible:
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const: arm,dcc
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required:
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- compatible
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additionalProperties: false
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examples:
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- |
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serial {
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compatible = "arm,dcc";
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};
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