diff options
Diffstat (limited to 'drivers/tty/serial/8250/8250_pci.c')
| -rw-r--r-- | drivers/tty/serial/8250/8250_pci.c | 47 |
1 files changed, 17 insertions, 30 deletions
diff --git a/drivers/tty/serial/8250/8250_pci.c b/drivers/tty/serial/8250/8250_pci.c index a9b935a9b462..50f75703fd54 100644 --- a/drivers/tty/serial/8250/8250_pci.c +++ b/drivers/tty/serial/8250/8250_pci.c @@ -79,29 +79,24 @@ setup_port(struct serial_private *priv, struct uart_8250_port *port, int bar, int offset, int regshift) { struct pci_dev *dev = priv->dev; - unsigned long base, len; if (bar >= PCI_NUM_BAR_RESOURCES) return -EINVAL; - base = pci_resource_start(dev, bar); - if (pci_resource_flags(dev, bar) & IORESOURCE_MEM) { - len = pci_resource_len(dev, bar); - if (!priv->remapped_bar[bar]) - priv->remapped_bar[bar] = ioremap_nocache(base, len); + priv->remapped_bar[bar] = pci_ioremap_bar(dev, bar); if (!priv->remapped_bar[bar]) return -ENOMEM; port->port.iotype = UPIO_MEM; port->port.iobase = 0; - port->port.mapbase = base + offset; + port->port.mapbase = pci_resource_start(dev, bar) + offset; port->port.membase = priv->remapped_bar[bar] + offset; port->port.regshift = regshift; } else { port->port.iotype = UPIO_PORT; - port->port.iobase = base + offset; + port->port.iobase = pci_resource_start(dev, bar) + offset; port->port.mapbase = 0; port->port.membase = NULL; port->port.regshift = 0; @@ -317,7 +312,6 @@ static void pci_plx9050_exit(struct pci_dev *dev) static void pci_ni8420_exit(struct pci_dev *dev) { void __iomem *p; - unsigned long base, len; unsigned int bar = 0; if ((pci_resource_flags(dev, bar) & IORESOURCE_MEM) == 0) { @@ -325,9 +319,7 @@ static void pci_ni8420_exit(struct pci_dev *dev) return; } - base = pci_resource_start(dev, bar); - len = pci_resource_len(dev, bar); - p = ioremap_nocache(base, len); + p = pci_ioremap_bar(dev, bar); if (p == NULL) return; @@ -349,7 +341,6 @@ static void pci_ni8420_exit(struct pci_dev *dev) static void pci_ni8430_exit(struct pci_dev *dev) { void __iomem *p; - unsigned long base, len; unsigned int bar = 0; if ((pci_resource_flags(dev, bar) & IORESOURCE_MEM) == 0) { @@ -357,9 +348,7 @@ static void pci_ni8430_exit(struct pci_dev *dev) return; } - base = pci_resource_start(dev, bar); - len = pci_resource_len(dev, bar); - p = ioremap_nocache(base, len); + p = pci_ioremap_bar(dev, bar); if (p == NULL) return; @@ -682,7 +671,6 @@ static int pci_xircom_init(struct pci_dev *dev) static int pci_ni8420_init(struct pci_dev *dev) { void __iomem *p; - unsigned long base, len; unsigned int bar = 0; if ((pci_resource_flags(dev, bar) & IORESOURCE_MEM) == 0) { @@ -690,9 +678,7 @@ static int pci_ni8420_init(struct pci_dev *dev) return 0; } - base = pci_resource_start(dev, bar); - len = pci_resource_len(dev, bar); - p = ioremap_nocache(base, len); + p = pci_ioremap_bar(dev, bar); if (p == NULL) return -ENOMEM; @@ -714,7 +700,7 @@ static int pci_ni8420_init(struct pci_dev *dev) static int pci_ni8430_init(struct pci_dev *dev) { void __iomem *p; - unsigned long base, len; + struct pci_bus_region region; u32 device_window; unsigned int bar = 0; @@ -723,14 +709,17 @@ static int pci_ni8430_init(struct pci_dev *dev) return 0; } - base = pci_resource_start(dev, bar); - len = pci_resource_len(dev, bar); - p = ioremap_nocache(base, len); + p = pci_ioremap_bar(dev, bar); if (p == NULL) return -ENOMEM; - /* Set device window address and size in BAR0 */ - device_window = ((base + MITE_IOWBSR1_WIN_OFFSET) & 0xffffff00) + /* + * Set device window address and size in BAR0, while acknowledging that + * the resource structure may contain a translated address that differs + * from the address the device responds to. + */ + pcibios_resource_to_bus(dev->bus, ®ion, &dev->resource[bar]); + device_window = ((region.start + MITE_IOWBSR1_WIN_OFFSET) & 0xffffff00) | MITE_IOWBSR1_WENAB | MITE_IOWBSR1_WSIZE; writel(device_window, p + MITE_IOWBSR1); @@ -757,8 +746,8 @@ pci_ni8430_setup(struct serial_private *priv, const struct pciserial_board *board, struct uart_8250_port *port, int idx) { + struct pci_dev *dev = priv->dev; void __iomem *p; - unsigned long base, len; unsigned int bar, offset = board->first_offset; if (idx >= board->num_ports) @@ -767,9 +756,7 @@ pci_ni8430_setup(struct serial_private *priv, bar = FL_GET_BASE(board->flags); offset += idx * board->uart_offset; - base = pci_resource_start(priv->dev, bar); - len = pci_resource_len(priv->dev, bar); - p = ioremap_nocache(base, len); + p = pci_ioremap_bar(dev, bar); /* enable the transceiver */ writeb(readb(p + offset + NI8430_PORTCON) | NI8430_PORTCON_TXVR_ENABLE, |