From: Rob Herring <robh@kernel.org>
To: Michal Simek <michal.simek@amd.com>
Cc: linux-kernel@vger.kernel.org, michal.simek@xilinx.com,
Conor Dooley <conor+dt@kernel.org>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Jiri Slaby <jirislaby@kernel.org>,
linux-serial@vger.kernel.org, monstr@monstr.eu,
Rob Herring <robh+dt@kernel.org>,
git@xilinx.com, devicetree@vger.kernel.org,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>
Subject: Re: [PATCH] dt-bindings: serial: Describe ARM dcc interface
Date: Thu, 21 Dec 2023 15:11:56 -0600 [thread overview]
Message-ID: <170319311633.101509.1532196763061569676.robh@kernel.org> (raw)
In-Reply-To: <9d7e85914eb1cdb313b28cb019093a84dd9b4773.1703167505.git.michal.simek@amd.com>
On Thu, 21 Dec 2023 15:05:09 +0100, Michal Simek wrote:
> 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>
> ---
>
> This communication interface is used for flash programming on Xilinx
> SOCs from U-Boot.
> https://source.denx.de/u-boot/u-boot/-/blob/master/drivers/serial/arm_dcc.c
>
> ---
> .../devicetree/bindings/serial/arm,dcc.yaml | 30 +++++++++++++++++++
> 1 file changed, 30 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/serial/arm,dcc.yaml
>
Reviewed-by: Rob Herring <robh@kernel.org>
next prev parent reply other threads:[~2023-12-21 21:11 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-12-21 14:05 [PATCH] dt-bindings: serial: Describe ARM dcc interface Michal Simek
2023-12-21 21:11 ` Rob Herring [this message]
2023-12-22 8:20 ` Krzysztof Kozlowski
2024-01-02 15:32 ` Michal Simek
2024-01-03 20:22 ` Rob Herring
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