AR7_REGS_UART0    570 arch/mips/ar7/platform.c 	uart_port.mapbase	= AR7_REGS_UART0;
AR7_REGS_UART0    240 arch/mips/ar7/prom.c #define PORT(offset) (KSEG1ADDR(AR7_REGS_UART0 + (offset * 4)))
AR7_REGS_UART0     18 arch/mips/boot/compressed/uart-16550.c #define PORT(offset) (CKSEG1ADDR(AR7_REGS_UART0) + (4 * offset))