2 * Derived from the i386 version.
6 * This assumes you have a 1.8432 MHz clock for your UART.
8 * It'd be nice if someone built a serial card with a 24.576 MHz
9 * clock, since the 16550A is capable of handling a top speed of 1.5
10 * megabits/second; but this requires the faster clock.
12 #define BASE_BAUD ( 1843200 / 16 )
15 * All legacy serial ports should be enumerated via ACPI namespace, so
16 * we need not list them here.