include/asm-arm/arch-realview/uncompress.h

   1 /*
   2  *  linux/include/asm-arm/arch-realview/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 <asm/arch/hardware.h>
  21 #include <asm/mach-types.h>
  22
  23 #include <asm/arch/board-eb.h>
  24 #include <asm/arch/board-pb11mp.h>
  25 #include <asm/arch/board-pb1176.h>
  26
  27 #define AMBA_UART_DR(base)      (*(volatile unsigned char *)((base) + 0x00))
  28 #define AMBA_UART_LCRH(base)    (*(volatile unsigned char *)((base) + 0x2c))
  29 #define AMBA_UART_CR(base)      (*(volatile unsigned char *)((base) + 0x30))
  30 #define AMBA_UART_FR(base)      (*(volatile unsigned char *)((base) + 0x18))
  31
  32 /*
  33  * Return the UART base address
  34  */
  35 static inline unsigned long get_uart_base(void)
  36 {
  37         if (machine_is_realview_eb())
  38                 return REALVIEW_EB_UART0_BASE;
  39         else if (machine_is_realview_pb11mp())
  40                 return REALVIEW_PB11MP_UART0_BASE;
  41         else if (machine_is_realview_pb1176())
  42                 return REALVIEW_PB1176_UART0_BASE;
  43         else
  44                 return 0;
  45 }
  46
  47 /*
  48  * This does not append a newline
  49  */
  50 static inline void putc(int c)
  51 {
  52         unsigned long base = get_uart_base();
  53
  54         while (AMBA_UART_FR(base) & (1 << 5))
  55                 barrier();
  56
  57         AMBA_UART_DR(base) = c;
  58 }
  59
  60 static inline void flush(void)
  61 {
  62         unsigned long base = get_uart_base();
  63
  64         while (AMBA_UART_FR(base) & (1 << 3))
  65                 barrier();
  66 }
  67
  68 /*
  69  * nothing to do
  70  */
  71 #define arch_decomp_setup()
  72 #define arch_decomp_wdog()