FreeCalypso > hg > freecalypso-sw
view target-utils/libcommon/uartsel.c @ 380:5e0e9bb26060
fc-loadtool: compalstage support hooked in
author | Michael Spacefalcon <msokolov@ivan.Harhan.ORG> |
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date | Mon, 09 Jun 2014 21:20:10 +0000 |
parents | 40f607bb0a2c |
children | a7b0b426f9ca |
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/* * 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); } }