arch/arm/mach-bcm2835/include/mach/uncompress.h

   1 /*
   2  * Copyright (C) 2010 Broadcom
   3  * Copyright (C) 2003 ARM Limited
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  */
  15
  16 #include <linux/io.h>
  17 #include <linux/amba/serial.h>
  18 #include <mach/bcm2835_soc.h>
  19
  20 #define UART0_BASE BCM2835_DEBUG_PHYS
  21
  22 #define BCM2835_UART_DR IOMEM(UART0_BASE + UART01x_DR)
  23 #define BCM2835_UART_FR IOMEM(UART0_BASE + UART01x_FR)
  24 #define BCM2835_UART_CR IOMEM(UART0_BASE + UART011_CR)
  25
  26 static inline void putc(int c)
  27 {
  28         while (__raw_readl(BCM2835_UART_FR) & UART01x_FR_TXFF)
  29                 barrier();
  30
  31         __raw_writel(c, BCM2835_UART_DR);
  32 }
  33
  34 static inline void flush(void)
  35 {
  36         int fr;
  37
  38         do {
  39                 fr = __raw_readl(BCM2835_UART_FR);
  40                 barrier();
  41         } while ((fr & (UART011_FR_TXFE | UART01x_FR_BUSY)) != UART011_FR_TXFE);
  42 }
  43
  44 #define arch_decomp_setup()
  45 #define arch_decomp_wdog()