8250: fix boot hang with serial console when using with Serial Over Lan port

[sfrench/cifs-2.6.git] / drivers / serial / 8250_pci.c

diff --git a/drivers/serial/8250_pci.c b/drivers/serial/8250_pci.c
index 536d8e510f66da655b9106ac7eb2e0719edce2b3..533f82025adf218e6fffbfd1730f94839924be21 100644 (file)
--- a/drivers/serial/8250_pci.c
+++ b/drivers/serial/8250_pci.c
@@ -798,6 +798,21 @@ pci_default_setup(struct serial_private *priv,
        return setup_port(priv, port, bar, offset, board->reg_shift);
 }
 
        return setup_port(priv, port, bar, offset, board->reg_shift);
 }
 

+static int skip_tx_en_setup(struct serial_private *priv,
+                       const struct pciserial_board *board,
+                       struct uart_port *port, int idx)
+{
+       port->flags |= UPF_NO_TXEN_TEST;
+       printk(KERN_DEBUG "serial8250: skipping TxEn test for device "
+                         "[%04x:%04x] subsystem [%04x:%04x]\n",
+                         priv->dev->vendor,
+                         priv->dev->device,
+                         priv->dev->subsystem_vendor,
+                         priv->dev->subsystem_device);
+
+       return pci_default_setup(priv, board, port, idx);
+}
+

 /* This should be in linux/pci_ids.h */
 #define PCI_VENDOR_ID_SBSMODULARIO     0x124B
 #define PCI_SUBVENDOR_ID_SBSMODULARIO  0x124B
 /* This should be in linux/pci_ids.h */
 #define PCI_VENDOR_ID_SBSMODULARIO     0x124B
 #define PCI_SUBVENDOR_ID_SBSMODULARIO  0x124B


@@ -864,6 +879,27 @@ static struct pci_serial_quirk pci_serial_quirks[] __refdata = {
                .init           = pci_inteli960ni_init,
                .setup          = pci_default_setup,
        },
                .init           = pci_inteli960ni_init,
                .setup          = pci_default_setup,
        },

+       {
+               .vendor         = PCI_VENDOR_ID_INTEL,
+               .device         = PCI_DEVICE_ID_INTEL_8257X_SOL,
+               .subvendor      = PCI_ANY_ID,
+               .subdevice      = PCI_ANY_ID,
+               .setup          = skip_tx_en_setup,
+       },
+       {
+               .vendor         = PCI_VENDOR_ID_INTEL,
+               .device         = PCI_DEVICE_ID_INTEL_82573L_SOL,
+               .subvendor      = PCI_ANY_ID,
+               .subdevice      = PCI_ANY_ID,
+               .setup          = skip_tx_en_setup,
+       },
+       {
+               .vendor         = PCI_VENDOR_ID_INTEL,
+               .device         = PCI_DEVICE_ID_INTEL_82573E_SOL,
+               .subvendor      = PCI_ANY_ID,
+               .subdevice      = PCI_ANY_ID,
+               .setup          = skip_tx_en_setup,
+       },

        /*
         * ITE
         */
        /*
         * ITE
         */