target/linux/lantiq/image/lzma-loader/src/board-lantiq.c

   1 /*
   2  * Arch specific code for Lantiq based boards
   3  *
   4  * Copyright (C) 2013 John Crispin <blogic@openwrt.org>
   5  *
   6  * This program is free software; you can redistribute it and/or modify it
   7  * under the terms of the GNU General Public License version 2 as published
   8  * by the Free Software Foundation.
   9  */
  10
  11 #include <stddef.h>
  12 #include "config.h"
  13
  14 #define READREG(r)              *(volatile unsigned int *)(r)
  15 #define WRITEREG(r,v)           *(volatile unsigned int *)(r) = v
  16
  17 #define UART_BASE               0xbe100c00
  18 #define ASC_TBUF                (UART_BASE | 0x20)
  19 #define ASC_FSTAT               (UART_BASE | 0x48)
  20
  21 #define TXMASK          0x3F00
  22 #define TXOFFSET        8
  23
  24 void board_putc(char c)
  25 {
  26         while ((READREG(ASC_FSTAT) & TXMASK) >> TXOFFSET);
  27
  28         WRITEREG(ASC_TBUF, c);
  29 }
  30
  31 void board_init(void)
  32 {
  33 }