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Peter Anvin" , x86@kernel.org, Jonathan Corbet , Catalin Marinas , Will Deacon , graeme.gregory@linaro.org, mark.salter@redhat.com References: <20180118150951.28964-1-prarit@redhat.com> <20180212133429.GC25314@hirez.programming.kicks-ass.net> <1e69fffc-1c3b-8cc0-f1cb-695de5ccdcb5@redhat.com> From: Timur Tabi Message-ID: <953565bd-436b-c1fe-d3c5-cde731dee83d@codeaurora.org> Date: Mon, 12 Feb 2018 08:43:45 -0600 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.9; rv:52.0) Gecko/20100101 Thunderbird/52.5.2 MIME-Version: 1.0 In-Reply-To: <1e69fffc-1c3b-8cc0-f1cb-695de5ccdcb5@redhat.com> Content-Type: text/plain; charset=windows-1252; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-serial-owner@vger.kernel.org X-Mailing-List: linux-serial@vger.kernel.org X-getmail-retrieved-from-mailbox: INBOX X-Mailing-List: linux-kernel@vger.kernel.org List-ID: On 2/12/18 7:47 AM, Prarit Bhargava wrote: > ACPI SPCR is used by a vendor to define the serial console for a system. If > SPCR exists a user can add kernel parameter "earlycon" (no extra kernel > parameters) and the console will work out-of-the-box. "earlycon" is needed only for an *early* console. You don't need any command line parameters for a normal console to work with SPCR. -- Qualcomm Datacenter Technologies, Inc. as an affiliate of Qualcomm Technologies, Inc. Qualcomm Technologies, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project.