From 7808edcd306f22aeb23775d34e70b7fa2f58b852 Mon Sep 17 00:00:00 2001 From: Nicos Gollan Date: Thu, 5 May 2011 21:00:37 +0200 Subject: Basic support for Moschip 9900 family I/O chips Add I/O based support for serial and parallel ports of the following chips: Vendor: Moschip (0x9710) Parts (device IDs) * 9900 (0x9900) * 9904 (0x9904 * 9901 (0x9912, also sold as 9912) * 9922 (0x9922) On all chips but the 9900, a single port is provided per PCI subdevice (subvendor-ID 0xA000, subdevice-IDs 0x1000 for serial, 0x2000 for parallel with proper class codes). In cascading configurations, the 9900 provides two devices per subdevice, with subvendor-ID 0xA000 and subdevice-IDs 0x30ps where p is the number of parallel ports and s the number of serial ports. Basic testing was only done on the serial part of a 9912 to the point where it can be used for a serial kernel console, and advanced features are completely untested. It is possible to reduce functionality of the chips by adding a configuration EEPROM, and the datasheet [1] is inconsistent w.r.t subdevices in the 4s+2s1p and 2s1p+4s configurations. The subdevice-ID 0x3012 should likely read 0x3011 with a serial port in function 3, which would be consistent with the BAR layouts. For now, the drivers ignore subdevices with ID 0x1000 and no class code. The parallel ports are integrated in parport_serial even for purely parallel parts to reduce the footprint of the patch. [1] http://www.moschip.com/data/products/MCS9900/MCS9900_Datasheet.pdf Signed-off-by: Nicos Gollan Signed-off-by: Greg Kroah-Hartman --- include/linux/pci_ids.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'include/linux/pci_ids.h') diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h index a311008af5e1..034ebb4451c2 100644 --- a/include/linux/pci_ids.h +++ b/include/linux/pci_ids.h @@ -2821,7 +2821,11 @@ #define PCI_DEVICE_ID_NETMOS_9845 0x9845 #define PCI_DEVICE_ID_NETMOS_9855 0x9855 #define PCI_DEVICE_ID_NETMOS_9865 0x9865 +#define PCI_DEVICE_ID_NETMOS_9900 0x9900 #define PCI_DEVICE_ID_NETMOS_9901 0x9901 +#define PCI_DEVICE_ID_NETMOS_9904 0x9904 +#define PCI_DEVICE_ID_NETMOS_9912 0x9912 +#define PCI_DEVICE_ID_NETMOS_9922 0x9922 #define PCI_VENDOR_ID_3COM_2 0xa727 -- cgit v1.2.3-55-g7522