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/* * (C) P. Horton 2006 */ #include <linux/io.h> #include <linux/serial_reg.h> #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); }