From ecc85e166fbec0378215aab13925b0e980a48d1e Mon Sep 17 00:00:00 2001 From: Alex Roman Date: Fri, 3 Jul 2009 14:58:59 +0800 Subject: [ARM] pxa/colibri: add UART MFP configuration for the PXA320 module This patch configures the MFP pads for UART1, UART2, UART3 for the Toradex Colibri PXA320 module. Previously they were just not configured resulting in just the first UART working because it was the only one that was configured by the bootloader (Toradex EBOOT in our case). This patch is against vanilla 2.6.30 and has been tested with the Toradex Orchid carrier board (all three UARTs were functional). Signed-off-by: Alex Roman Acked-by: Daniel Mack Signed-off-by: Eric Miao --- arch/arm/mach-pxa/colibri-pxa320.c | 32 ++++++++++++++++++++++++++++++++ 1 file changed, 32 insertions(+) (limited to 'arch/arm/mach-pxa/colibri-pxa320.c') diff --git a/arch/arm/mach-pxa/colibri-pxa320.c b/arch/arm/mach-pxa/colibri-pxa320.c index 458c1a147b6..494572825c7 100644 --- a/arch/arm/mach-pxa/colibri-pxa320.c +++ b/arch/arm/mach-pxa/colibri-pxa320.c @@ -164,6 +164,37 @@ static inline void __init colibri_pxa320_init_ac97(void) static inline void colibri_pxa320_init_ac97(void) {} #endif +/* + * The following configuration is verified to work with the Toradex Orchid + * carrier board + */ +static mfp_cfg_t colibri_pxa320_uart_pin_config[] __initdata = { + /* UART 1 configuration (may be set by bootloader) */ + GPIO99_UART1_CTS, + GPIO104_UART1_RTS, + GPIO97_UART1_RXD, + GPIO98_UART1_TXD, + GPIO101_UART1_DTR, + GPIO103_UART1_DSR, + GPIO100_UART1_DCD, + GPIO102_UART1_RI, + + /* UART 2 configuration */ + GPIO109_UART2_CTS, + GPIO112_UART2_RTS, + GPIO110_UART2_RXD, + GPIO111_UART2_TXD, + + /* UART 3 configuration */ + GPIO30_UART3_RXD, + GPIO31_UART3_TXD, +}; + +static void __init colibri_pxa320_init_uart(void) +{ + pxa3xx_mfp_config(ARRAY_AND_SIZE(colibri_pxa320_uart_pin_config)); +} + void __init colibri_pxa320_init(void) { colibri_pxa320_init_eth(); @@ -174,6 +205,7 @@ void __init colibri_pxa320_init(void) colibri_pxa320_init_ac97(); colibri_pxa3xx_init_mmc(ARRAY_AND_SIZE(colibri_pxa320_mmc_pin_config), mfp_to_gpio(MFP_PIN_GPIO28)); + colibri_pxa320_init_uart(); } MACHINE_START(COLIBRI320, "Toradex Colibri PXA320") -- cgit v1.2.3