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/hardware.h>
  12 #include <mach/cns3xxx.h>
  13
  14 #define AMBA_UART_DR(base)      (*(volatile unsigned char *)((base) + 0x00))
  15 #define AMBA_UART_LCRH(base)    (*(volatile unsigned char *)((base) + 0x2c))
  16 #define AMBA_UART_CR(base)      (*(volatile unsigned char *)((base) + 0x30))
  17 #define AMBA_UART_FR(base)      (*(volatile unsigned char *)((base) + 0x18))
  18
  19 /*
  20  * Return the UART base address
  21  */
  22 static inline unsigned long get_uart_base(void)
  23 {
  24         if (machine_is_cns3420vb())
  25                 return CNS3XXX_UART0_BASE;
  26         else
  27                 return 0;
  28 }
  29
  30 /*
  31  * This does not append a newline
  32  */
  33 static inline void putc(int c)
  34 {
  35         unsigned long base = get_uart_base();
  36
  37         while (AMBA_UART_FR(base) & (1 << 5))
  38                 barrier();
  39
  40         AMBA_UART_DR(base) = c;
  41 }
  42
  43 static inline void flush(void)
  44 {
  45         unsigned long base = get_uart_base();
  46
  47         while (AMBA_UART_FR(base) & (1 << 3))
  48                 barrier();
  49 }
  50
  51 /*
  52  * nothing to do
  53  */
  54 #define arch_decomp_setup()
  55 #define arch_decomp_wdog()