target/linux/mcs814x/files-3.14/arch/arm/mach-mcs814x/include/mach/uncompress.h

   1 /*
   2  * Copyright (C) 2012, Florian Fainelli <florian@openwrt.org>
   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 #ifndef __ASM_ARCH_UNCOMPRESS_H
  10 #define __ASM_ARCH_UNCOMPRESS_H
  11
  12 #include <linux/serial_reg.h>
  13 #include <asm/io.h>
  14 #include <mach/mcs814x.h>
  15 #include <mach/cpu.h>
  16
  17 #define UART_SHIFT      (2)
  18
  19 /* cannot be static because the code will be inlined */
  20 void __iomem *uart_base;
  21
  22 static inline void putc(int c)
  23 {
  24         while (!(__raw_readb(uart_base + (UART_LSR << UART_SHIFT)) & UART_LSR_TEMT));
  25         __raw_writeb(c, uart_base + (UART_TX << UART_SHIFT));
  26 }
  27
  28 static inline void flush(void)
  29 {
  30 }
  31
  32 static inline void arch_decomp_setup(void)
  33 {
  34         if (soc_is_mcs8140())
  35                 uart_base = (void __iomem *)(MCS814X_PHYS_BASE +MCS814X_UART);
  36 }
  37
  38 #define arch_decomp_wdog()
  39
  40 #endif