https://github.com/torvalds/linux
Raw File
Tip revision: 3d77e6a8804abcc0504c904bd6e5cdf3a5cf8162 authored by Linus Torvalds on 31 May 2020, 23:49:15 UTC
Linux 5.7
Tip revision: 3d77e6a
serial.h
/*
 * Derived from the i386 version.
 */

/*
 * This assumes you have a 1.8432 MHz clock for your UART.
 *
 * It'd be nice if someone built a serial card with a 24.576 MHz
 * clock, since the 16550A is capable of handling a top speed of 1.5
 * megabits/second; but this requires the faster clock.
 */
#define BASE_BAUD ( 1843200 / 16 )

/*
 * All legacy serial ports should be enumerated via ACPI namespace, so
 * we need not list them here.
 */
back to top