3 files changed, 11 insertions, 9 deletions

diff --git a/drivers/serial/Kconfig b/drivers/serial/Kconfig
index 2978c09860ee..09f8bff1fbd1 100644
--- a/drivers/serial/Kconfig
+++ b/drivers/serial/Kconfig
@@ -262,7 +262,8 @@ config SERIAL_AMBA_PL010
         select SERIAL_CORE
         help
           This selects the ARM(R) AMBA(R) PrimeCell PL010 UART.  If you have
-          an Integrator/AP or Integrator/PP2 platform, say Y or M here.
+          an Integrator/AP or Integrator/PP2 platform, or if you have a
+          Cirrus Logic EP93xx CPU, say Y or M here.
 
           If unsure, say N.
 
diff --git a/drivers/serial/atmel_serial.c b/drivers/serial/atmel_serial.c
index 881f886b91c6..071564790993 100644
--- a/drivers/serial/atmel_serial.c
+++ b/drivers/serial/atmel_serial.c
@@ -33,12 +33,13 @@
 #include <linux/sysrq.h>
 #include <linux/tty_flip.h>
 #include <linux/platform_device.h>
+#include <linux/atmel_pdc.h>
 
 #include <asm/io.h>
 
 #include <asm/mach/serial_at91.h>
 #include <asm/arch/board.h>
-#include <asm/arch/at91_pdc.h>
+
 #ifdef CONFIG_ARM
 #include <asm/arch/cpu.h>
 #include <asm/arch/gpio.h>
diff --git a/drivers/serial/imx.c b/drivers/serial/imx.c
index e216dcf29376..04cc88cc528c 100644
--- a/drivers/serial/imx.c
+++ b/drivers/serial/imx.c
@@ -154,7 +154,7 @@ static inline void imx_transmit_buffer(struct imx_port *sport)
 {
         struct circ_buf *xmit = &sport->port.info->xmit;
 
-        do {
+        while (!(UTS((u32)sport->port.membase) & UTS_TXFULL)) {
                 /* send xmit->buf[xmit->tail]
                  * out the port here */
                 URTX0((u32)sport->port.membase) = xmit->buf[xmit->tail];
@@ -163,7 +163,7 @@ static inline void imx_transmit_buffer(struct imx_port *sport)
                 sport->port.icount.tx++;
                 if (uart_circ_empty(xmit))
                         break;
-        } while (!(UTS((u32)sport->port.membase) & UTS_TXFULL));
+        }
 
         if (uart_circ_empty(xmit))
                 imx_stop_tx(&sport->port);
@@ -178,8 +178,7 @@ static void imx_start_tx(struct uart_port *port)
 
         UCR1((u32)sport->port.membase) |= UCR1_TXMPTYEN;
 
-        if(UTS((u32)sport->port.membase) & UTS_TXEMPTY)
-                imx_transmit_buffer(sport);
+        imx_transmit_buffer(sport);
 }
 
 static irqreturn_t imx_rtsint(int irq, void *dev_id)
@@ -404,7 +403,8 @@ static int imx_startup(struct uart_port *port)
         if (retval) goto error_out2;
 
         retval = request_irq(sport->rtsirq, imx_rtsint,
-                             IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING,
+                             (sport->rtsirq < IMX_IRQS) ? 0 :
+                               IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING,
                              DRIVER_NAME, sport);
         if (retval) goto error_out3;
 
@@ -678,7 +678,7 @@ static struct imx_port imx_ports[] = {
                 .mapbase        = IMX_UART1_BASE, /* FIXME */
                 .irq            = UART1_MINT_RX,
                 .uartclk        = 16000000,
-                .fifosize       = 8,
+                .fifosize       = 32,
                 .flags          = UPF_BOOT_AUTOCONF,
                 .ops            = &imx_pops,
                 .line           = 0,
@@ -694,7 +694,7 @@ static struct imx_port imx_ports[] = {
                 .mapbase        = IMX_UART2_BASE, /* FIXME */
                 .irq            = UART2_MINT_RX,
                 .uartclk        = 16000000,
-                .fifosize       = 8,
+                .fifosize       = 32,
                 .flags          = UPF_BOOT_AUTOCONF,
                 .ops            = &imx_pops,
                 .line           = 1,