serial: 8250: Add Quark X1000 to 8250_pci.c

Quark X1000 contains two designware derived 8250 serial ports.
Each port has a unique PCI configuration space consisting of
BAR0:UART BAR1:DMA respectively.

Unlike the standard 8250 the register width is 32 bits for RHR,IER etc
The Quark UART has a fundamental clock @ 44.2368 MHz allowing for a
bitrate of up to about 2.76 megabits per second.

This patch enables standard 8250 mode

Signed-off-by: Bryan O'Donoghue <pure.logic@nexus-software.ie>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Bryan O'Donoghue 2014-09-23 01:21:11 +01:00 committed by Greg Kroah-Hartman
parent 13d6ceb4c4
commit 1ede7dcca3
1 changed files with 21 additions and 0 deletions

View File

@ -1788,6 +1788,7 @@ pci_wch_ch353_setup(struct serial_private *priv,
#define PCI_DEVICE_ID_COMMTECH_4222PCIE 0x0022
#define PCI_DEVICE_ID_BROADCOM_TRUMANAGE 0x160a
#define PCI_DEVICE_ID_AMCC_ADDIDATA_APCI7800 0x818e
#define PCI_DEVICE_ID_INTEL_QRK_UART 0x0936
#define PCI_VENDOR_ID_SUNIX 0x1fd4
#define PCI_DEVICE_ID_SUNIX_1999 0x1999
@ -1898,6 +1899,13 @@ static struct pci_serial_quirk pci_serial_quirks[] __refdata = {
.subdevice = PCI_ANY_ID,
.setup = byt_serial_setup,
},
{
.vendor = PCI_VENDOR_ID_INTEL,
.device = PCI_DEVICE_ID_INTEL_QRK_UART,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.setup = pci_default_setup,
},
/*
* ITE
*/
@ -2740,6 +2748,7 @@ enum pci_board_num_t {
pbn_ADDIDATA_PCIe_8_3906250,
pbn_ce4100_1_115200,
pbn_byt,
pbn_qrk,
pbn_omegapci,
pbn_NETMOS9900_2s_115200,
pbn_brcm_trumanage,
@ -3490,6 +3499,12 @@ static struct pciserial_board pci_boards[] = {
.uart_offset = 0x80,
.reg_shift = 2,
},
[pbn_qrk] = {
.flags = FL_BASE0,
.num_ports = 1,
.base_baud = 2764800,
.reg_shift = 2,
},
[pbn_omegapci] = {
.flags = FL_BASE0,
.num_ports = 8,
@ -5191,6 +5206,12 @@ static struct pci_device_id serial_pci_tbl[] = {
PCI_CLASS_COMMUNICATION_SERIAL << 8, 0xff0000,
pbn_byt },
/*
* Intel Quark x1000
*/
{ PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_QRK_UART,
PCI_ANY_ID, PCI_ANY_ID, 0, 0,
pbn_qrk },
/*
* Cronyx Omega PCI
*/