FreeCalypso > hg > freecalypso-sw
view target-utils/libcommon/uartsel.c @ 919:1dbc0f0851b3
.hgignore: fc-pirhackinit added
author | Space Falcon <falcon@ivan.Harhan.ORG> |
---|---|
date | Tue, 08 Sep 2015 19:50:23 +0000 |
parents | 40f607bb0a2c |
children | a7b0b426f9ca |
line wrap: on
line source
/* * 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); } }