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authorSascha Hauer <sascha@saschahauer.de>2006-05-04 14:07:42 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2006-05-04 14:07:42 +0100
commit5b802344357338a4d645beac8ca97470bcbe3542 (patch)
treef3f8df6cb9bec5ddb6dc947ea99eb9454232066b /drivers
parentb2556da55f78a9dbe92830b1d1c0b612edfea9fd (diff)
[ARM] 3490/1: i.MX: move uart resources to board files
Patch from Sascha Hauer This patch moves the i.MX uart resources and the gpio pin setup to the board files. This allows the boards to decide how many internal uarts are connected to the outside world and whether they use rts/cts or not. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/serial/imx.c40
1 files changed, 16 insertions, 24 deletions
diff --git a/drivers/serial/imx.c b/drivers/serial/imx.c
index c3b7a6673e9..d202eb4f384 100644
--- a/drivers/serial/imx.c
+++ b/drivers/serial/imx.c
@@ -45,6 +45,7 @@
#include <asm/io.h>
#include <asm/irq.h>
#include <asm/hardware.h>
+#include <asm/arch/imx-uart.h>
/* We've been assigned a range on the "Low-density serial ports" major */
#define SERIAL_IMX_MAJOR 204
@@ -73,7 +74,8 @@ struct imx_port {
struct uart_port port;
struct timer_list timer;
unsigned int old_status;
- int txirq,rxirq,rtsirq;
+ int txirq,rxirq,rtsirq;
+ int have_rtscts:1;
};
/*
@@ -491,8 +493,12 @@ imx_set_termios(struct uart_port *port, struct termios *termios,
ucr2 = UCR2_SRST | UCR2_IRTS;
if (termios->c_cflag & CRTSCTS) {
- ucr2 &= ~UCR2_IRTS;
- ucr2 |= UCR2_CTSC;
+ if( sport->have_rtscts ) {
+ ucr2 &= ~UCR2_IRTS;
+ ucr2 |= UCR2_CTSC;
+ } else {
+ termios->c_cflag &= ~CRTSCTS;
+ }
}
if (termios->c_cflag & CSTOPB)
@@ -719,27 +725,6 @@ static void __init imx_init_ports(void)
imx_ports[i].timer.function = imx_timeout;
imx_ports[i].timer.data = (unsigned long)&imx_ports[i];
}
-
- imx_gpio_mode(PC9_PF_UART1_CTS);
- imx_gpio_mode(PC10_PF_UART1_RTS);
- imx_gpio_mode(PC11_PF_UART1_TXD);
- imx_gpio_mode(PC12_PF_UART1_RXD);
- imx_gpio_mode(PB28_PF_UART2_CTS);
- imx_gpio_mode(PB29_PF_UART2_RTS);
-
- imx_gpio_mode(PB30_PF_UART2_TXD);
- imx_gpio_mode(PB31_PF_UART2_RXD);
-
-#if 0 /* We don't need these, on the mx1 the _modem_ side of the uart
- * is implemented.
- */
- imx_gpio_mode(PD7_AF_UART2_DTR);
- imx_gpio_mode(PD8_AF_UART2_DCD);
- imx_gpio_mode(PD9_AF_UART2_RI);
- imx_gpio_mode(PD10_AF_UART2_DSR);
-#endif
-
-
}
#ifdef CONFIG_SERIAL_IMX_CONSOLE
@@ -932,7 +917,14 @@ static int serial_imx_resume(struct platform_device *dev)
static int serial_imx_probe(struct platform_device *dev)
{
+ struct imxuart_platform_data *pdata;
+
imx_ports[dev->id].port.dev = &dev->dev;
+
+ pdata = (struct imxuart_platform_data *)dev->dev.platform_data;
+ if(pdata && (pdata->flags & IMXUART_HAVE_RTSCTS))
+ imx_ports[dev->id].have_rtscts = 1;
+
uart_add_one_port(&imx_reg, &imx_ports[dev->id].port);
platform_set_drvdata(dev, &imx_ports[dev->id]);
return 0;