diff options
Diffstat (limited to 'drivers/serial')
| -rw-r--r-- | drivers/serial/serial_mxc.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/drivers/serial/serial_mxc.c b/drivers/serial/serial_mxc.c index 1563bb3665..1960bbc5ae 100644 --- a/drivers/serial/serial_mxc.c +++ b/drivers/serial/serial_mxc.c @@ -76,6 +76,7 @@ #define UFCR_RXTL_SHF 0 /* Receiver trigger level shift */ #define UFCR_RFDIV (7<<7) /* Reference freq divider mask */ #define UFCR_RFDIV_SHF 7 /* Reference freq divider shift */ +#define UFCR_DCEDTE (1<<6) /* DTE mode select */ #define UFCR_TXTL_SHF 10 /* Transmitter trigger level shift */ #define USR1_PARITYERR (1<<15) /* Parity error interrupt flag */ #define USR1_RTSS (1<<14) /* RTS pin status */ @@ -150,6 +151,7 @@ static void mxc_serial_setbrg(void) __REG(UART_PHYS + UFCR) = (RFDIV << UFCR_RFDIV_SHF) | (TXTL << UFCR_TXTL_SHF) | (RXTL << UFCR_RXTL_SHF); + __REG(UART_PHYS + UFCR) |= UFCR_DCEDTE; __REG(UART_PHYS + UBIR) = 0xf; __REG(UART_PHYS + UBMR) = clk / (2 * gd->baudrate); @@ -269,8 +271,13 @@ int mxc_serial_setbrg(struct udevice *dev, int baudrate) struct mxc_serial_platdata *plat = dev->platdata; struct mxc_uart *const uart = plat->reg; u32 clk = imx_get_uartclk(); + u32 tmp; + + tmp = 4 << UFCR_RFDIV_SHF; + if (plat->use_dte) + tmp |= UFCR_DCEDTE; + writel(tmp, &uart->fcr); - writel(4 << 7, &uart->fcr); /* divide input clock by 2 */ writel(0xf, &uart->bir); writel(clk / (2 * baudrate), &uart->bmr); |