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authorRussell King <rmk@dyn-67.arm.linux.org.uk>2008-09-13 20:10:59 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2008-09-13 20:11:15 +0100
commit68ddb1d963c44da913b0331b633828c48206351b (patch)
treeb56d3c44f936739ad5c0d3d128b97b886d337d6b
parentc33de47bce74e0c890f9f830a7641371524edbc1 (diff)
parent9fbe604456c5ae21768f1c98379e1b81c72adcd3 (diff)
Merge branch 'for-rmk' of git://pasiphae.extern.pengutronix.de/git/imx/linux-2.6.git
-rw-r--r--arch/arm/mach-mx3/pcm037.c2
-rw-r--r--drivers/serial/imx.c27
2 files changed, 23 insertions, 6 deletions
diff --git a/arch/arm/mach-mx3/pcm037.c b/arch/arm/mach-mx3/pcm037.c
index 0a152ed15a8..df8582a6231 100644
--- a/arch/arm/mach-mx3/pcm037.c
+++ b/arch/arm/mach-mx3/pcm037.c
@@ -54,7 +54,7 @@ static struct platform_device pcm037_flash = {
};
static struct imxuart_platform_data uart_pdata = {
- .flags = 0,
+ .flags = IMXUART_HAVE_RTSCTS,
};
static struct platform_device *devices[] __initdata = {
diff --git a/drivers/serial/imx.c b/drivers/serial/imx.c
index 6a29f9330a7..3f90f1bbbbc 100644
--- a/drivers/serial/imx.c
+++ b/drivers/serial/imx.c
@@ -127,8 +127,13 @@
#define UCR3_RXDSEN (1<<6) /* Receive status interrupt enable */
#define UCR3_AIRINTEN (1<<5) /* Async IR wake interrupt enable */
#define UCR3_AWAKEN (1<<4) /* Async wake interrupt enable */
-#define UCR3_REF25 (1<<3) /* Ref freq 25 MHz */
-#define UCR3_REF30 (1<<2) /* Ref Freq 30 MHz */
+#ifdef CONFIG_ARCH_IMX
+#define UCR3_REF25 (1<<3) /* Ref freq 25 MHz, only on mx1 */
+#define UCR3_REF30 (1<<2) /* Ref Freq 30 MHz, only on mx1 */
+#endif
+#if defined CONFIG_ARCH_MX2 || defined CONFIG_ARCH_MX3
+#define UCR3_RXDMUXSEL (1<<2) /* RXD Muxed Input Select, on mx2/mx3 */
+#endif
#define UCR3_INVT (1<<1) /* Inverted Infrared transmission */
#define UCR3_BPEN (1<<0) /* Preset registers enable */
#define UCR4_CTSTL_32 (32<<10) /* CTS trigger level (32 chars) */
@@ -445,7 +450,7 @@ static irqreturn_t imx_int(int irq, void *dev_id)
readl(sport->port.membase + UCR1) & UCR1_TXMPTYEN)
imx_txint(irq, dev_id);
- if (sts & USR1_RTSS)
+ if (sts & USR1_RTSD)
imx_rtsint(irq, dev_id);
return IRQ_HANDLED;
@@ -598,6 +603,12 @@ static int imx_startup(struct uart_port *port)
temp |= (UCR2_RXEN | UCR2_TXEN);
writel(temp, sport->port.membase + UCR2);
+#if defined CONFIG_ARCH_MX2 || defined CONFIG_ARCH_MX3
+ temp = readl(sport->port.membase + UCR3);
+ temp |= UCR3_RXDMUXSEL;
+ writel(temp, sport->port.membase + UCR3);
+#endif
+
/*
* Enable modem status interrupts
*/
@@ -1133,13 +1144,19 @@ static int serial_imx_probe(struct platform_device *pdev)
if(pdata && (pdata->flags & IMXUART_HAVE_RTSCTS))
sport->have_rtscts = 1;
- if (pdata->init)
- pdata->init(pdev);
+ if (pdata->init) {
+ ret = pdata->init(pdev);
+ if (ret)
+ goto clkput;
+ }
uart_add_one_port(&imx_reg, &sport->port);
platform_set_drvdata(pdev, &sport->port);
return 0;
+clkput:
+ clk_put(sport->clk);
+ clk_disable(sport->clk);
unmap:
iounmap(sport->port.membase);
free: