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serial: 8250_pci: add Pericom PCIe Serial board Support (12d8:7952/4/8) - Chip PI7C9X7952/4/8 

Signed-off-by: Angelo Butti <buttiangelo@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Angelo Butti 2013-10-15 22:41:10 +03:00 committed by Greg Kroah-Hartman
parent 37cd940b20
commit 9434147520
1 changed files with 48 additions and 0 deletions
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48
drivers/tty/serial/8250/8250_pci.c
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@ -1307,6 +1307,29 @@ static int pci_default_setup(struct serial_private *priv,
return setup_port(priv, port, bar, offset, board->reg_shift);
}
static int pci_pericom_setup(struct serial_private *priv,
const struct pciserial_board *board,
struct uart_8250_port *port, int idx)
{
unsigned int bar, offset = board->first_offset, maxnr;
bar = FL_GET_BASE(board->flags);
if (board->flags & FL_BASE_BARS)
bar += idx;
else
offset += idx * board->uart_offset;
maxnr = (pci_resource_len(priv->dev, bar) - board->first_offset) >>
(board->reg_shift + 3);
if (board->flags & FL_REGION_SZ_CAP && idx >= maxnr)
return 1;
port->port.uartclk = 14745600;
return setup_port(priv, port, bar, offset, board->reg_shift);
}
static int
ce4100_serial_setup(struct serial_private *priv,
const struct pciserial_board *board,
@ -2015,6 +2038,31 @@ static struct pci_serial_quirk pci_serial_quirks[] __refdata = {
.setup = pci_default_setup,
.exit = pci_plx9050_exit,
},
/*
* Pericom
*/
{
.vendor = 0x12d8,
.device = 0x7952,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.setup = pci_pericom_setup,
},
{
.vendor = 0x12d8,
.device = 0x7954,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.setup = pci_pericom_setup,
},
{
.vendor = 0x12d8,
.device = 0x7958,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.setup = pci_pericom_setup,
},
/*
* PLX
*/