+
−/*
+
− * uart_select_init() figures out which UART was used to load us
+
− * through the boot ROM, and sets things up for us to use the same
+
− * UART for our communication.
+
− */
+
−
+
−#include "types.h"
+
−#include "romvars.h"
+
−#include "ns16550.h"
+
−#include "halt.h"
+
−
+
−extern struct boot_rom_vars rom_vars;
+
−
+
−struct ns16550_regs *uart_base;
+
−char *uart_name;
+
−
+
−uart_select_init()
+
−{
+
−	switch (rom_vars.uart_id) {
+
−	case 0:
+
−		uart_base = (struct ns16550_regs *) 0xFFFF5800;
+
−		uart_name = "MODEM";
+
−		break;
+
−	case 1:
+
−		uart_base = (struct ns16550_regs *) 0xFFFF5000;
+
−		uart_name = "IrDA";
+
−		break;
+
−	default:
+
−		_exit(HALTCODE_INVALIDUART);
+
−	}
+
−}