arch/arm/mach-prima2/include/mach/uncompress.h

   1 /*
   2  * arch/arm/mach-prima2/include/mach/uncompress.h
   3  *
   4  * Copyright (c) 2011 Cambridge Silicon Radio Limited, a CSR plc group company.
   5  *
   6  * Licensed under GPLv2 or later.
   7  */
   8
   9 #ifndef __ASM_ARCH_UNCOMPRESS_H
  10 #define __ASM_ARCH_UNCOMPRESS_H
  11
  12 #include <linux/io.h>
  13 #include <mach/hardware.h>
  14 #include <mach/uart.h>
  15
  16 void arch_decomp_setup(void)
  17 {
  18 }
  19
  20 #define arch_decomp_wdog()
  21
  22 static __inline__ void putc(char c)
  23 {
  24         /*
  25          * during kernel decompression, all mappings are flat:
  26          *  virt_addr == phys_addr
  27          */
  28         while (__raw_readl((void __iomem *)SIRFSOC_UART1_PA_BASE + SIRFSOC_UART_TXFIFO_STATUS)
  29                 & SIRFSOC_UART1_TXFIFO_FULL)
  30                 barrier();
  31
  32         __raw_writel(c, (void __iomem *)SIRFSOC_UART1_PA_BASE + SIRFSOC_UART_TXFIFO_DATA);
  33 }
  34
  35 static inline void flush(void)
  36 {
  37 }
  38
  39 #endif
  40