text: /*
   * (C) P. Horton 2006
   */
  #include <linux/io.h>
  #include <linux/serial_reg.h>
  
  #include <cobalt.h>
  
  #define UART_BASE	((void __iomem *)CKSEG1ADDR(0x1c800000))
  
  void prom_putchar(char c)
  {
  	if (cobalt_board_id <= COBALT_BRD_ID_QUBE1)
  		return;
  
  	while (!(readb(UART_BASE + UART_LSR) & UART_LSR_THRE))
  		;
  
  	writeb(c, UART_BASE + UART_TX);
  }
  