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

   1 /*
   2  * arch/arm/mach-mmp/include/mach/uncompress.h
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License version 2 as
   6  * published by the Free Software Foundation.
   7  */
   8
   9 #include <linux/serial_reg.h>
  10 #include <mach/addr-map.h>
  11 #include <asm/mach-types.h>
  12
  13 #define UART1_BASE      (APB_PHYS_BASE + 0x36000)
  14 #define UART2_BASE      (APB_PHYS_BASE + 0x17000)
  15 #define UART3_BASE      (APB_PHYS_BASE + 0x18000)
  16
  17 volatile unsigned long *UART;
  18
  19 static inline void putc(char c)
  20 {
  21         /* UART enabled? */
  22         if (!(UART[UART_IER] & UART_IER_UUE))
  23                 return;
  24
  25         while (!(UART[UART_LSR] & UART_LSR_THRE))
  26                 barrier();
  27
  28         UART[UART_TX] = c;
  29 }
  30
  31 /*
  32  * This does not append a newline
  33  */
  34 static inline void flush(void)
  35 {
  36 }
  37
  38 static inline void arch_decomp_setup(void)
  39 {
  40         /* default to UART2 */
  41         UART = (unsigned long *)UART2_BASE;
  42
  43         if (machine_is_avengers_lite())
  44                 UART = (unsigned long *)UART3_BASE;
  45 }
  46
  47 /*
  48  * nothing to do
  49  */
  50
  51 #define arch_decomp_wdog()