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

[pandora-kernel.git] / arch / avr32 / mach-at32ap / at32ap700x.c

diff --git a/arch/avr32/mach-at32ap/at32ap700x.c b/arch/avr32/mach-at32ap/at32ap700x.c
index 62501d6..7cc6537 100644 (file)
--- a/arch/avr32/mach-at32ap/at32ap700x.c
+++ b/arch/avr32/mach-at32ap/at32ap700x.c
@@ -966,56 +966,68 @@ static struct resource atmel_usart3_resource[] = {
 DEFINE_DEV_DATA(atmel_usart, 3);
 DEV_CLK(usart, atmel_usart3, pba, 6);
 
-static inline void configure_usart0_pins(void)
+static inline void configure_usart0_pins(int flags)
 {
        u32 pin_mask = (1 << 8) | (1 << 9); /* RXD & TXD */
+       if (flags & ATMEL_USART_RTS)    pin_mask |= (1 << 6);
+       if (flags & ATMEL_USART_CTS)    pin_mask |= (1 << 7);
+       if (flags & ATMEL_USART_CLK)    pin_mask |= (1 << 10);
 
        select_peripheral(PIOA, pin_mask, PERIPH_B, AT32_GPIOF_PULLUP);
 }
 
-static inline void configure_usart1_pins(void)
+static inline void configure_usart1_pins(int flags)
 {
        u32 pin_mask = (1 << 17) | (1 << 18); /* RXD & TXD */
+       if (flags & ATMEL_USART_RTS)    pin_mask |= (1 << 19);
+       if (flags & ATMEL_USART_CTS)    pin_mask |= (1 << 20);
+       if (flags & ATMEL_USART_CLK)    pin_mask |= (1 << 16);
 
        select_peripheral(PIOA, pin_mask, PERIPH_A, AT32_GPIOF_PULLUP);
 }
 
-static inline void configure_usart2_pins(void)
+static inline void configure_usart2_pins(int flags)
 {
        u32 pin_mask = (1 << 26) | (1 << 27); /* RXD & TXD */
+       if (flags & ATMEL_USART_RTS)    pin_mask |= (1 << 30);
+       if (flags & ATMEL_USART_CTS)    pin_mask |= (1 << 29);
+       if (flags & ATMEL_USART_CLK)    pin_mask |= (1 << 28);
 
        select_peripheral(PIOB, pin_mask, PERIPH_B, AT32_GPIOF_PULLUP);
 }
 
-static inline void configure_usart3_pins(void)
+static inline void configure_usart3_pins(int flags)
 {
        u32 pin_mask = (1 << 18) | (1 << 17); /* RXD & TXD */
+       if (flags & ATMEL_USART_RTS)    pin_mask |= (1 << 16);
+       if (flags & ATMEL_USART_CTS)    pin_mask |= (1 << 15);
+       if (flags & ATMEL_USART_CLK)    pin_mask |= (1 << 19);
 
        select_peripheral(PIOB, pin_mask, PERIPH_B, AT32_GPIOF_PULLUP);
 }
 
 static struct platform_device *__initdata at32_usarts[4];
 
-void __init at32_map_usart(unsigned int hw_id, unsigned int line)
+void __init at32_map_usart(unsigned int hw_id, unsigned int line, int flags)
 {
        struct platform_device *pdev;
 
        switch (hw_id) {
        case 0:
                pdev = &atmel_usart0_device;
-               configure_usart0_pins();
+               configure_usart0_pins(flags);
                break;
        case 1:
                pdev = &atmel_usart1_device;
-               configure_usart1_pins();
+               configure_usart1_pins(flags);
                break;
        case 2:
                pdev = &atmel_usart2_device;
-               configure_usart2_pins();
+               configure_usart2_pins(flags);
                break;
        case 3:
                pdev = &atmel_usart3_device;
-               configure_usart3_pins();
+               configure_usart3_pins(flags);
                break;
        default:
                return;