1 files changed, 11 insertions, 1 deletions

diff --git a/drivers/tty/serial/pch_uart.c b/drivers/tty/serial/pch_uart.c
index 08b9962b8fda..c2816f494807 100644
--- a/drivers/tty/serial/pch_uart.c
+++ b/drivers/tty/serial/pch_uart.c
@@ -210,6 +210,7 @@ enum {
 #define CMITC_UARTCLK   192000000 /* 192.0000 MHz */
 #define FRI2_64_UARTCLK  64000000 /*  64.0000 MHz */
 #define FRI2_48_UARTCLK  48000000 /*  48.0000 MHz */
+#define NTC1_UARTCLK     64000000 /*  64.0000 MHz */
 
 struct pch_uart_buffer {
         unsigned char *buf;
@@ -384,6 +385,12 @@ static int pch_uart_get_uartclk(void)
         if (cmp && strstr(cmp, "Fish River Island II"))
                 return FRI2_48_UARTCLK;
 
+        /* Kontron COMe-mTT10 (nanoETXexpress-TT) */
+        cmp = dmi_get_system_info(DMI_BOARD_NAME);
+        if (cmp && (strstr(cmp, "COMe-mTT") ||
+                    strstr(cmp, "nanoETXexpress-TT")))
+                return NTC1_UARTCLK;
+
         return DEFAULT_UARTCLK;
 }
 
@@ -1440,9 +1447,11 @@ static int pch_uart_verify_port(struct uart_port *port,
                         __func__);
                 return -EOPNOTSUPP;
 #endif
-                priv->use_dma = 1;
                 priv->use_dma_flag = 1;
                 dev_info(priv->port.dev, "PCH UART : Use DMA Mode\n");
+                if (!priv->use_dma)
+                        pch_request_dma(port);
+                priv->use_dma = 1;
         }
 
         return 0;
@@ -1651,6 +1660,7 @@ static struct eg20t_port *pch_uart_init_port(struct pci_dev *pdev,
         }
 
         pci_enable_msi(pdev);
+        pci_set_master(pdev);
 
         iobase = pci_resource_start(pdev, 0);
         mapbase = pci_resource_start(pdev, 1);