uart: Support multiple ports

The port for console remains to be a compile time constant.
The Kconfig option is changed to select an UART port with index
to avoid putting map of UART base addresses in Kconfigs.

With this change it is possible to have other than debug console
on different UART port.

Change-Id: Ie1845a946f8d3b2604ef5404edb31b2e811f3ccd
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/5342
Tested-by: build bot (Jenkins)
Reviewed-by: David Hendricks <dhendrix@chromium.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
diff --git a/src/include/console/uart.h b/src/include/console/uart.h
index 5866ca4..b08cd9b 100644
--- a/src/include/console/uart.h
+++ b/src/include/console/uart.h
@@ -40,10 +40,10 @@
 	unsigned int refclk, unsigned int oversample);
 
 
-void uart_init(void);
-void uart_tx_byte(unsigned char data);
-void uart_tx_flush(void);
-unsigned char uart_rx_byte(void);
+void uart_init(int idx);
+void uart_tx_byte(int idx, unsigned char data);
+void uart_tx_flush(int idx);
+unsigned char uart_rx_byte(int idx);
 
 unsigned int uart_platform_base(int idx);
 
@@ -60,9 +60,9 @@
 	(ENV_SMM && CONFIG_DEBUG_SMI))
 
 #if __CONSOLE_SERIAL_ENABLE__
-static inline void __uart_init(void)		{ uart_init(); }
-static inline void __uart_tx_byte(u8 data)	{ uart_tx_byte(data); }
-static inline void __uart_tx_flush(void)	{ uart_tx_flush(); }
+static inline void __uart_init(void)		{ uart_init(CONFIG_UART_FOR_CONSOLE); }
+static inline void __uart_tx_byte(u8 data)	{ uart_tx_byte(CONFIG_UART_FOR_CONSOLE, data); }
+static inline void __uart_tx_flush(void)	{ uart_tx_flush(CONFIG_UART_FOR_CONSOLE); }
 #else
 static inline void __uart_init(void)		{}
 static inline void __uart_tx_byte(u8 data)	{}