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| author | Karicheri, Muralidharan <m-karicheri2@ti.com> | 2014-04-09 15:38:46 -0400 |
|---|---|---|
| committer | Tom Rini <trini@ti.com> | 2014-05-12 15:19:45 -0400 |
| commit | d57dee5787ad96d2c80bf36f443276592d39ee21 (patch) | |
| tree | 041f13aa1af9bbbeadb587c15a27e5a0496c5ae9 /drivers/serial | |
| parent | 8abd053cf07a1e4264d59c671e05a602fc7a31ad (diff) | |
| download | u-boot-imx-d57dee5787ad96d2c80bf36f443276592d39ee21.zip u-boot-imx-d57dee5787ad96d2c80bf36f443276592d39ee21.tar.gz u-boot-imx-d57dee5787ad96d2c80bf36f443276592d39ee21.tar.bz2 | |
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 <m-karicheri2@ti.com>
Diffstat (limited to 'drivers/serial')
| -rw-r--r-- | drivers/serial/ns16550.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/serial/ns16550.c b/drivers/serial/ns16550.c index 8a13454..f26979d 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 |