LXR linux/arch/arm/mach-mv78xx0/include/mach/uncompress.h

   1/*
   2 * arch/arm/mach-mv78xx0/include/mach/uncompress.h
   3 *
   4 * This file is licensed under the terms of the GNU General Public
   5 * License version 2.  This program is licensed "as is" without any
   6 * warranty of any kind, whether express or implied.
   7 */
   8
   9#include <linux/serial_reg.h>
  10#include <mach/mv78xx0.h>
  11
  12#define SERIAL_BASE     ((unsigned char *)UART0_PHYS_BASE)
  13
  14static void putc(const char c)
  15{
  16        unsigned char *base = SERIAL_BASE;
  17        int i;
  18
  19        for (i = 0; i < 0x1000; i++) {
  20                if (base[UART_LSR << 2] & UART_LSR_THRE)
  21                        break;
  22                barrier();
  23        }
  24
  25        base[UART_TX << 2] = c;
  26}
  27
  28static void flush(void)
  29{
  30        unsigned char *base = SERIAL_BASE;
  31        unsigned char mask;
  32        int i;
  33
  34        mask = UART_LSR_TEMT | UART_LSR_THRE;
  35
  36        for (i = 0; i < 0x1000; i++) {
  37                if ((base[UART_LSR << 2] & mask) == mask)
  38                        break;
  39                barrier();
  40        }
  41}
  42
  43/*
  44 * nothing to do
  45 */
  46#define arch_decomp_setup()
  47#define arch_decomp_wdog()
  48