include/asm-arm/arch-iop3xx/uncompress.h

   1 /*
   2  *  linux/include/asm-arm/arch-iop3xx/uncompress.h
   3  */
   4 #include <asm/types.h>
   5 #include <asm/mach-types.h>
   6 #include <linux/serial_reg.h>
   7 #include <asm/hardware.h>
   8
   9 #ifdef CONFIG_ARCH_IOP321
  10 #define UTYPE unsigned char *
  11 #elif defined(CONFIG_ARCH_IOP331)
  12 #define UTYPE u32 *
  13 #else
  14 #error "Missing IOP3xx arch type def"
  15 #endif
  16
  17 static volatile UTYPE uart_base;
  18
  19 #define TX_DONE (UART_LSR_TEMT|UART_LSR_THRE)
  20
  21 static inline void putc(char c)
  22 {
  23         while ((uart_base[UART_LSR] & TX_DONE) != TX_DONE)
  24                 barrier();
  25         *uart_base = c;
  26 }
  27
  28 static inline void flush(void)
  29 {
  30 }
  31
  32 static __inline__ void __arch_decomp_setup(unsigned long arch_id)
  33 {
  34         if(machine_is_iq80321())
  35                         uart_base = (volatile UTYPE)IQ80321_UART;
  36                 else if(machine_is_iq31244())
  37                         uart_base = (volatile UTYPE)IQ31244_UART;
  38                 else if(machine_is_iq80331() || machine_is_iq80332())
  39                         uart_base = (volatile UTYPE)IOP331_UART0_PHYS;
  40                 else
  41                         uart_base = (volatile UTYPE)0xfe800000;
  42 }
  43
  44 /*
  45  * nothing to do
  46  */
  47 #define arch_decomp_setup()     __arch_decomp_setup(arch_id)
  48 #define arch_decomp_wdog()