From d57dee5787ad96d2c80bf36f443276592d39ee21 Mon Sep 17 00:00:00 2001 From: "Karicheri, Muralidharan" Date: Wed, 9 Apr 2014 15:38:46 -0400 Subject: serial: nsl16550: add hw flow control support keystone serial hw support hw flow control. This patch enables hw flow control for keystone EVMs as an optional feature based on CONFIG_SERIAL_HW_FLOW_CONTROL. Signed-off-by: Murali Karicheri --- drivers/serial/ns16550.c | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'drivers') diff --git a/drivers/serial/ns16550.c b/drivers/serial/ns16550.c index 8a13454943..f26979dbe1 100644 --- a/drivers/serial/ns16550.c +++ b/drivers/serial/ns16550.c @@ -33,6 +33,12 @@ #if defined(CONFIG_K2HK_EVM) #define UART_REG_VAL_PWREMU_MGMT_UART_DISABLE 0 #define UART_REG_VAL_PWREMU_MGMT_UART_ENABLE ((1 << 14) | (1 << 13) | (1 << 0)) +#undef UART_MCRVAL +#ifdef CONFIG_SERIAL_HW_FLOW_CONTROL +#define UART_MCRVAL (UART_MCR_RTS | UART_MCR_AFE) +#else +#define UART_MCRVAL (UART_MCR_RTS) +#endif #endif #ifndef CONFIG_SYS_NS16550_IER -- cgit