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         *uart_base = c;
  26 }
  27
  28 /*
  29  * This does not append a newline
  30  */
  31 static void putstr(const char *s)
  32 {
  33         while (*s) {
  34                 putc(*s);
  35                 if (*s == '\n')
  36                         putc('\r');
  37                 s++;
  38         }
  39 }
  40
  41 static __inline__ void __arch_decomp_setup(unsigned long arch_id)
  42 {
  43         if(machine_is_iq80321())
  44                         uart_base = (volatile UTYPE)IQ80321_UART;
  45                 else if(machine_is_iq31244())
  46                         uart_base = (volatile UTYPE)IQ31244_UART;
  47                 else if(machine_is_iq80331() || machine_is_iq80332())
  48                         uart_base = (volatile UTYPE)IOP331_UART0_PHYS;
  49                 else
  50                         uart_base = (volatile UTYPE)0xfe800000;
  51 }
  52
  53 /*
  54  * nothing to do
  55  */
  56 #define arch_decomp_setup()     __arch_decomp_setup(arch_id)
  57 #define arch_decomp_wdog()