arch/arm/mach-pxa/include/mach/uncompress.h

   1 /*
   2  * arch/arm/mach-pxa/include/mach/uncompress.h
   3  *
   4  * Author:      Nicolas Pitre
   5  * Copyright:   (C) 2001 MontaVista Software Inc.
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License version 2 as
   9  * published by the Free Software Foundation.
  10  */
  11
  12 #include <linux/serial_reg.h>
  13 #include <mach/regs-uart.h>
  14 #include <asm/mach-types.h>
  15
  16 #define __REG(x)       ((volatile unsigned long *)x)
  17
  18 static volatile unsigned long *UART = FFUART;
  19
  20 static inline void putc(char c)
  21 {
  22         if (!(UART[UART_IER] & IER_UUE))
  23                 return;
  24         while (!(UART[UART_LSR] & LSR_TDRQ))
  25                 barrier();
  26         UART[UART_TX] = c;
  27 }
  28
  29 /*
  30  * This does not append a newline
  31  */
  32 static inline void flush(void)
  33 {
  34 }
  35
  36 static inline void arch_decomp_setup(void)
  37 {
  38         if (machine_is_littleton() || machine_is_intelmote2()
  39             || machine_is_csb726() || machine_is_stargate2()
  40             || machine_is_cm_x300() || machine_is_balloon3())
  41                 UART = STUART;
  42 }
  43
  44 /*
  45  * nothing to do
  46  */
  47 #define arch_decomp_wdog()