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

   1/*
   2 *  arch/arm/mach-realview/include/mach/uncompress.h
   3 *
   4 *  Copyright (C) 2003 ARM Limited
   5 *
   6 * This program is free software; you can redistribute it and/or modify
   7 * it under the terms of the GNU General Public License as published by
   8 * the Free Software Foundation; either version 2 of the License, or
   9 * (at your option) any later version.
  10 *
  11 * This program is distributed in the hope that it will be useful,
  12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 * GNU General Public License for more details.
  15 *
  16 * You should have received a copy of the GNU General Public License
  17 * along with this program; if not, write to the Free Software
  18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19 */
  20#include <mach/hardware.h>
  21#include <asm/mach-types.h>
  22
  23#include <mach/board-eb.h>
  24#include <mach/board-pb11mp.h>
  25#include <mach/board-pb1176.h>
  26#include <mach/board-pba8.h>
  27#include <mach/board-pbx.h>
  28
  29#define AMBA_UART_DR(base)      (*(volatile unsigned char *)((base) + 0x00))
  30#define AMBA_UART_LCRH(base)    (*(volatile unsigned char *)((base) + 0x2c))
  31#define AMBA_UART_CR(base)      (*(volatile unsigned char *)((base) + 0x30))
  32#define AMBA_UART_FR(base)      (*(volatile unsigned char *)((base) + 0x18))
  33
  34/*
  35 * Return the UART base address
  36 */
  37static inline unsigned long get_uart_base(void)
  38{
  39        if (machine_is_realview_eb())
  40                return REALVIEW_EB_UART0_BASE;
  41        else if (machine_is_realview_pb11mp())
  42                return REALVIEW_PB11MP_UART0_BASE;
  43        else if (machine_is_realview_pb1176())
  44                return REALVIEW_PB1176_UART0_BASE;
  45        else if (machine_is_realview_pba8())
  46                return REALVIEW_PBA8_UART0_BASE;
  47        else if (machine_is_realview_pbx())
  48                return REALVIEW_PBX_UART0_BASE;
  49        else
  50                return 0;
  51}
  52
  53/*
  54 * This does not append a newline
  55 */
  56static inline void putc(int c)
  57{
  58        unsigned long base = get_uart_base();
  59
  60        while (AMBA_UART_FR(base) & (1 << 5))
  61                barrier();
  62
  63        AMBA_UART_DR(base) = c;
  64}
  65
  66static inline void flush(void)
  67{
  68        unsigned long base = get_uart_base();
  69
  70        while (AMBA_UART_FR(base) & (1 << 3))
  71                barrier();
  72}
  73
  74/*
  75 * nothing to do
  76 */
  77#define arch_decomp_setup()
  78