diff options
Diffstat (limited to 'board/evb64260/pci.c')
| -rw-r--r-- | board/evb64260/pci.c | 33 |
1 files changed, 26 insertions, 7 deletions
diff --git a/board/evb64260/pci.c b/board/evb64260/pci.c index 585906d..5f3b154 100644 --- a/board/evb64260/pci.c +++ b/board/evb64260/pci.c @@ -52,6 +52,7 @@ static const unsigned int pci_scs_bank_size[2][4] = { static const unsigned int pci_p2p_configuration[] = { PCI_0P2P_CONFIGURATION, PCI_1P2P_CONFIGURATION}; +static unsigned int local_buses[] = { 0, 0}; /******************************************************************** * pciWriteConfigReg - Write to a PCI configuration register * - Make sure the GT is configured as a master before writing @@ -74,7 +75,7 @@ void pciWriteConfigReg(PCI_HOST host, unsigned int regOffset,unsigned int pciDev { volatile unsigned int DataForAddrReg; unsigned int functionNum; - unsigned int busNum = 0; + unsigned int busNum = PCI_BUS(pciDevNum); unsigned int addr; if(pciDevNum > 32) /* illegal device Number */ @@ -117,7 +118,7 @@ unsigned int pciReadConfigReg (PCI_HOST host, unsigned int regOffset,unsigned in volatile unsigned int DataForAddrReg; unsigned int data; unsigned int functionNum; - unsigned int busNum = 0; + unsigned int busNum = PCI_BUS(pciDevNum); if(pciDevNum > 32) /* illegal device Number */ return 0xffffffff; @@ -531,16 +532,32 @@ static int gt_read_config_dword(struct pci_controller *hose, pci_dev_t dev, int offset, u32* value) { - *value = pciReadConfigReg((PCI_HOST) hose->cfg_addr, offset, PCI_DEV(dev)); - return 0; + int bus = PCI_BUS(dev); + + if ((bus == local_buses[0]) || (bus == local_buses[1])){ + *value = pciReadConfigReg((PCI_HOST) hose->cfg_addr, offset, + PCI_DEV(dev)); + } else { + *value = pciOverBridgeReadConfigReg((PCI_HOST) hose->cfg_addr, + offset, PCI_DEV(dev), bus); + } + return 0; } static int gt_write_config_dword(struct pci_controller *hose, pci_dev_t dev, int offset, u32 value) { - pciWriteConfigReg((PCI_HOST)hose->cfg_addr, offset, PCI_DEV(dev), value); - return 0; + int bus = PCI_BUS(dev); + + if ((bus == local_buses[0]) || (bus == local_buses[1])){ + pciWriteConfigReg((PCI_HOST)hose->cfg_addr, offset, + PCI_DEV(dev), value); + } else { + pciOverBridgeWriteConfigReg((PCI_HOST)hose->cfg_addr, offset, + PCI_DEV(dev), value, bus); + } + return 0; } /* @@ -603,7 +620,7 @@ pci_init_board(void) pci0_hose.first_busno = 0; pci0_hose.last_busno = 0xff; - + local_buses[0] = pci0_hose.first_busno; /* PCI memory space */ pci_set_region(pci0_hose.regions + 0, CFG_PCI0_0_MEM_SPACE, @@ -647,6 +664,8 @@ pci_init_board(void) pci1_hose.first_busno = pci0_hose.last_busno + 1; pci1_hose.last_busno = 0xff; + pci1_hose.current_busno = pci0_hose.current_busno; + local_buses[1] = pci1_hose.first_busno; /* PCI memory space */ pci_set_region(pci1_hose.regions + 0, |