arch/arm/mach-iop32x/include/mach/uncompress.h

   1 /*
   2  * arch/arm/mach-iop32x/include/mach/uncompress.h
   3  */
   4
   5 #include <asm/types.h>
   6 #include <asm/mach-types.h>
   7 #include <linux/serial_reg.h>
   8 #include <mach/hardware.h>
   9
  10 volatile u8 *uart_base;
  11
  12 #define TX_DONE         (UART_LSR_TEMT | UART_LSR_THRE)
  13
  14 static inline void putc(char c)
  15 {
  16         while ((uart_base[UART_LSR] & TX_DONE) != TX_DONE)
  17                 barrier();
  18         uart_base[UART_TX] = c;
  19 }
  20
  21 static inline void flush(void)
  22 {
  23 }
  24
  25 static __inline__ void __arch_decomp_setup(unsigned long arch_id)
  26 {
  27         if (machine_is_iq80321())
  28                 uart_base = (volatile u8 *)IQ80321_UART;
  29         else if (machine_is_iq31244() || machine_is_em7210())
  30                 uart_base = (volatile u8 *)IQ31244_UART;
  31         else
  32                 uart_base = (volatile u8 *)0xfe800000;
  33 }
  34
  35 /*
  36  * nothing to do
  37  */
  38 #define arch_decomp_setup()     __arch_decomp_setup(arch_id)