/* * (C) P. Horton 2006 */ #include #include #define UART_BASE ((void __iomem *)CKSEG1ADDR(0x1c800000)) void prom_putchar(char c) { while (!(readb(UART_BASE + UART_LSR) & UART_LSR_THRE)) ; writeb(c, UART_BASE + UART_TX); }