1 /*
2  * Derived from the i386 version.
3  */
4 
5 /*
6  * This assumes you have a 1.8432 MHz clock for your UART.
7  *
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.
11  */
12 #define BASE_BAUD ( 1843200 / 16 )
13 
14 /*
15  * All legacy serial ports should be enumerated via ACPI namespace, so
16  * we need not list them here.
17  */
18