avr32: add RTS/CTS/CLK pin selection for the USARTs

Adds extra parameter to AT32 at32_map_usart(), so as to reserve
RTS/CTS/CLK pins.

All boards under arch/avr32/boards have been updated (trivial change), but
not all have been tested.

Signed-off-by: Peter Ma <pma@mediamatech.com>
Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>

1 files changed, 6 insertions, 1 deletions

diff --git a/arch/avr32/mach-at32ap/include/mach/board.h b/arch/avr32/mach-at32ap/include/mach/board.h
index b363b067b0a4..0b8164281899 100644
--- a/arch/avr32/mach-at32ap/include/mach/board.h
+++ b/arch/avr32/mach-at32ap/include/mach/board.h
@@ -26,12 +26,17 @@ static inline void __deprecated at32_add_system_devices(void)
 #define ATMEL_MAX_UART  4
 extern struct platform_device *atmel_default_console_device;
 
+/* Flags for selecting USART extra pins */
+#define ATMEL_USART_RTS         0x01
+#define ATMEL_USART_CTS         0x02
+#define ATMEL_USART_CLK         0x03
+
 struct atmel_uart_data {
         short           use_dma_tx;     /* use transmit DMA? */
         short           use_dma_rx;     /* use receive DMA? */
         void __iomem    *regs;          /* virtual base address, if any */
 };
-void at32_map_usart(unsigned int hw_id, unsigned int line);
+void at32_map_usart(unsigned int hw_id, unsigned int line, int flags);
 struct platform_device *at32_add_device_usart(unsigned int id);
 
 struct eth_platform_data {