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

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