Index: linux-2.6.22.19/arch/arm/mach-at91/at91rm9200_devices.c =================================================================== --- linux-2.6.22.19.orig/arch/arm/mach-at91/at91rm9200_devices.c +++ linux-2.6.22.19/arch/arm/mach-at91/at91rm9200_devices.c @@ -721,6 +721,10 @@ static inline void configure_usart0_pins * We need to drive the pin manually. Default is off (RTS is active low). */ at91_set_gpio_output(AT91_PIN_PA21, 1); + at91_set_gpio_output(AT91_PIN_PB6, 1); /* DTR0 */ + at91_set_gpio_output(AT91_PIN_PB7, 1); /* RI0 */ + at91_set_gpio_input(AT91_PIN_PA19, 1); /* DCD0 */ + at91_set_deglitch(AT91_PIN_PA19, 1); } static struct resource uart1_resources[] = { @@ -832,6 +836,12 @@ static inline void configure_usart3_pins { at91_set_B_periph(AT91_PIN_PA5, 1); /* TXD3 */ at91_set_B_periph(AT91_PIN_PA6, 0); /* RXD3 */ + at91_set_B_periph(AT91_PIN_PB0, 0); /* RTS3 */ + at91_set_B_periph(AT91_PIN_PB1, 0); /* CTS3 */ + at91_set_gpio_output(AT91_PIN_PB29, 1); /* DTR0 */ + at91_set_gpio_output(AT91_PIN_PB2, 1); /* RI0 */ + at91_set_gpio_input(AT91_PIN_PA24, 1); /* DCD0 */ + at91_set_deglitch(AT91_PIN_PA24, 1); } struct platform_device *at91_uarts[ATMEL_MAX_UART]; /* the UARTs to use */