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[24.56.189.226]) by smtp.gmail.com with ESMTPSA id e9e14a558f8ab-3a05900e618sm32570135ab.55.2024.09.12.10.39.06 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 12 Sep 2024 10:39:06 -0700 (PDT) From: Raul E Rangel To: linux-serial@vger.kernel.org Cc: pmladek@suse.com, rafael.j.wysocki@intel.com, ribalda@chromium.org, Raul E Rangel , Adrian Ratiu , "Borislav Petkov (AMD)" , Ingo Molnar , Jonathan Corbet , Josh Poimboeuf , "Paul E. McKenney" , Thomas Gleixner , Xiongwei Song , linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 1/3] Documentation: kernel-parameters: Add uartclk to console=uart Date: Thu, 12 Sep 2024 11:36:19 -0600 Message-ID: <20240912113616.1.Ic8770cb6e660110359b245808105e5310d3fa528@changeid> X-Mailer: git-send-email 2.46.0.662.g92d0881bb0-goog In-Reply-To: <20240912173901.3969597-1-rrangel@chromium.org> References: <20240912173901.3969597-1-rrangel@chromium.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" The console=3DuartXXXXX parameter is just an alias for earlycon=3DuartXXXX. This means it also accepts the uartclk parameter. Signed-off-by: Raul E Rangel Reviewed-by: Petr Mladek --- Documentation/admin-guide/kernel-parameters.txt | 16 ++++++---------- 1 file changed, 6 insertions(+), 10 deletions(-) diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentatio= n/admin-guide/kernel-parameters.txt index bc1036e73bc0b4..cd3d44db60457d 100644 --- a/Documentation/admin-guide/kernel-parameters.txt +++ b/Documentation/admin-guide/kernel-parameters.txt @@ -788,20 +788,16 @@ Documentation/networking/netconsole.rst for an alternative. =20 - uart[8250],io,[,options] - uart[8250],mmio,[,options] - uart[8250],mmio16,[,options] - uart[8250],mmio32,[,options] + uart[8250],io,[,options[,uartclk]] + uart[8250],mmio,[,options[,uartclk]] + uart[8250],mmio16,[,options[,uartclk]] + uart[8250],mmio32,[,options[,uartclk]] uart[8250],0x[,options] Start an early, polled-mode console on the 8250/16550 UART at the specified I/O port or MMIO address, switching to the matching ttyS device later. - MMIO inter-register address stride is either 8-bit - (mmio), 16-bit (mmio16), or 32-bit (mmio32). - If none of [io|mmio|mmio16|mmio32], is assumed - to be equivalent to 'mmio'. 'options' are specified in - the same format described for ttyS above; if unspecified, - the h/w is not re-initialized. + + See the documentation for earlycon=3Duart =20 hvc Use the hypervisor console device . This is for both Xen and PowerPC hypervisors. --=20 2.46.0.662.g92d0881bb0-goog