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.
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Technologies, Inc. Qualcomm Technologies, Inc. is a member of the
Code Aurora Forum, a Linux Foundation Collaborative Project.