diff options
| author | Lionel Xu <Lionel.Xu@freescale.com> | 2011-11-16 17:03:36 +0800 |
|---|---|---|
| committer | Eric Miao <eric.miao@linaro.org> | 2011-12-01 11:36:38 +0800 |
| commit | 77baa2cd195cabc1686f0ed5517a8eafd58864c1 (patch) | |
| tree | d4b90c17987e4575aa6aa7eeaec507dfea6af891 | |
| parent | f6c4c0b11439580a27a5e1a26c75a3bb5b69fafb (diff) | |
ENGR00139276-2 MX6 BT: Enable basic bluetooth support to mx6q platform
Modify uart driver to support DCE/DTE mode
Signed-off-by: Lionel Xu <Lionel.Xu@freescale.com>
| -rw-r--r-- | drivers/tty/serial/imx.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/drivers/tty/serial/imx.c b/drivers/tty/serial/imx.c index 531d442415b..70c1da61d2e 100644 --- a/drivers/tty/serial/imx.c +++ b/drivers/tty/serial/imx.c @@ -135,6 +135,7 @@ #define UFCR_RFDIV (7<<7) /* Reference freq divider mask */ #define UFCR_RFDIV_REG(x) (((x) < 7 ? 6 - (x) : 6) << 7) #define UFCR_TXTL_SHF 10 /* Transmitter trigger level shift */ +#define UFCR_DCEDTE (1<<6) #define USR1_PARITYERR (1<<15) /* Parity error interrupt flag */ #define USR1_RTSS (1<<14) /* RTS pin status */ #define USR1_TRDY (1<<13) /* Transmitter ready interrupt/dma flag */ @@ -189,6 +190,7 @@ struct imx_port { unsigned int old_status; int txirq,rxirq,rtsirq; unsigned int have_rtscts:1; + unsigned int use_dcedte:1; unsigned int use_irda:1; unsigned int irda_inv_rx:1; unsigned int irda_inv_tx:1; @@ -928,6 +930,10 @@ imx_set_termios(struct uart_port *port, struct ktermios *termios, ufcr = readl(sport->port.membase + UFCR); ufcr = (ufcr & (~UFCR_RFDIV)) | UFCR_RFDIV_REG(div); + + if (sport->use_dcedte) + ufcr |= UFCR_DCEDTE; + writel(ufcr, sport->port.membase + UFCR); writel(num, sport->port.membase + UBIR); @@ -1311,7 +1317,8 @@ static int serial_imx_probe(struct platform_device *pdev) pdata = pdev->dev.platform_data; if (pdata && (pdata->flags & IMXUART_HAVE_RTSCTS)) sport->have_rtscts = 1; - + if (pdata && (pdata->flags & IMXUART_USE_DCEDTE)) + sport->use_dcedte = 1; #ifdef CONFIG_IRDA if (pdata && (pdata->flags & IMXUART_IRDA)) sport->use_irda = 1; |