LXR linux/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
  17volatile unsigned long *UART;
  18
  19static 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 */
  34static inline void flush(void)
  35{
  36}
  37
  38static 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