arch/arm/mach-cns3xxx/include/mach/uncompress.h

   1 /*
   2  * Copyright 2003 ARM Limited
   3  * Copyright 2008 Cavium Networks
   4  *
   5  * This file is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License, Version 2, as
   7  * published by the Free Software Foundation.
   8  */
   9
  10 #include <asm/mach-types.h>
  11 #include <mach/cns3xxx.h>
  12
  13 #define AMBA_UART_DR(base)      (*(volatile unsigned char *)((base) + 0x00))
  14 #define AMBA_UART_LCRH(base)    (*(volatile unsigned char *)((base) + 0x2c))
  15 #define AMBA_UART_CR(base)      (*(volatile unsigned char *)((base) + 0x30))
  16 #define AMBA_UART_FR(base)      (*(volatile unsigned char *)((base) + 0x18))
  17
  18 /*
  19  * Return the UART base address
  20  */
  21 static inline unsigned long get_uart_base(void)
  22 {
  23         if (machine_is_cns3420vb())
  24                 return CNS3XXX_UART0_BASE;
  25         else
  26                 return 0;
  27 }
  28
  29 /*
  30  * This does not append a newline
  31  */
  32 static inline void putc(int c)
  33 {
  34         unsigned long base = get_uart_base();
  35
  36         while (AMBA_UART_FR(base) & (1 << 5))
  37                 barrier();
  38
  39         AMBA_UART_DR(base) = c;
  40 }
  41
  42 static inline void flush(void)
  43 {
  44         unsigned long base = get_uart_base();
  45
  46         while (AMBA_UART_FR(base) & (1 << 3))
  47                 barrier();
  48 }
  49
  50 /*
  51  * nothing to do
  52  */
  53 #define arch_decomp_setup()
  54 #define arch_decomp_wdog()