FreeCalypso > hg > freecalypso-sw
view target-utils/libcommon/uartsel.c @ 80:39b1c369b67f
nuc-fw: links to an ELF image
author | Michael Spacefalcon <msokolov@ivan.Harhan.ORG> |
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date | Fri, 16 Aug 2013 02:25:58 +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); } }