2.2 BSP Rel. 1.0 for PPMC-275 Programmer's Guide

API Call Reference List of APIs
PCI Devices Configuration
– PCI1_MEM1 default address space is 0x24000000 to
0x25FFFFFF (32 Mbyte).
If there is a GalNet device on both PCI0 and PCI1, the address
space 0x08000000 to 0x10000000 is.divided into two PCIs:
– PCI0_MEM1 gets address space 0x08000000 to 0x0BFFFFFF
(64 Mbyte).
– PCI1_MEM1 gets address space 0x0C000000 to 0x0FFFFFFF
(64 Mbyte).
f there is a GalNet device on PCI0 only, the address space
0x08000000 to 0x10000000 is dedicated to PCI0:
– PCI0_MEM1 gets address space 0x08000000 to 0x0FFFFFFF
(128 Mbyte).
– PCI1_MEM1 default address space 0x24000000 to
0x25FFFFFF (32 Mbyte).
If there is a GalNet device on PCI1 only, the address space
0x08000000 to 0x10000000 is dedicated to PCI1:
– PCI0_MEM1 default address space 0xF2000000 to
0xF3FFFFFF (32 Mbyte).
– PCI1_MEM1 gets address space 0x08000000 to 0x0FFFFFFF
(128 Mbyte).
In this phase, the data structures are scanned and each PCI device
is configured. The configuration cycle is divided into two parts:
GalNet devices configuration where the GalNetMappingArray
is scanned and each GalNet device is configured.
Other PCI devices configuration where the pciDeviceArray
is scanned and each PCI device is configured.
This driver is designed to deal with both PCI0 and PCI1. To refer
to any PCI (0/1) the pciActivePci() routine is called. This routine
sets the pciConfigLib with the appropriate read/write routine
(according to the routine's argument).
For example, in case of the PCI in question is PCI1, the routine set:
frcpciConfigRead = (FUNCPTR)pci1GetConfigReg;
for PCI1 read transactions
frcpciConfigWrite = (FUNCPTR)pci1SetConfigReg;
for PCI1 write transactions
VxWorks 5.5/Tornado 2.2 BSP Rel. 1.0 for PPMC-275 5 - 19