View source for Nvidia MCP55 Porting Notes

== Interrupt Routing Registers ==

'''Values for routing IRQ's:'''

{| border="0" style="font-size: smaller"
|- bgcolor="#6699ff"
! align="left" | Value
! align="left" | APIC Pin (hex.)
! align="left" | APIC Pin (dec.)
|- bgcolor="#eeeeee"
|0x01 || 0x17 || 23
|- bgcolor="#dddddd"
|0x02 || 0x16 || 22
|- bgcolor="#eeeeee"
|0x03 || 0x10 || 16
|- bgcolor="#dddddd"
|0x04 || 0x11 || 17
|- bgcolor="#eeeeee"
|0x05 || 0x05 || 5
|- bgcolor="#dddddd"
|0x06 || 0x12 || 18
|- bgcolor="#eeeeee"
|0x07 || 0x7  || 7
|- bgcolor="#dddddd"
|0x08 || 0x14 || 20
|- bgcolor="#eeeeee"
|0x09 || 0x09 || 9
|- bgcolor="#dddddd"
|0x0A || 0x0a || 10
|- bgcolor="#eeeeee"
|0x0B || 0x0b || 11
|- bgcolor="#dddddd"
|0x0C || 0x13 || 19
|- bgcolor="#eeeeee"
|0x0D || 0x15 || 21
|- bgcolor="#dddddd"
|0x0E || 0x0E || 14
|- bgcolor="#eeeeee"
|0x0F || 0x0F || 15
|}

== Register ==
Each line is 4 bits.
{| border="0" style="font-size: smaller"
|- bgcolor="#6699ff"
! align="left" | 0x7c
! align="left" | 0x80
! align="left" | 0x84
|- bgcolor="#eeeeee"
|INTA || SCII || INTG
|- bgcolor="#dddddd"
|INTB || TCOI || INTH
|- bgcolor="#eeeeee"
|INTC || INTF || INTJ
|- bgcolor="#dddddd"
|INTD || INTQ || INTK
|- bgcolor="#eeeeee"
|PCEA || INTU || INTL
|- bgcolor="#dddddd"
|PCEB || INTS || INTM
|- bgcolor="#eeeeee"
|PCEC || IS0P || INTN
|- bgcolor="#dddddd"
|PCED || ITID || ISA2
|}

== Wiring on M57SLI-S4 ==
{| border="0" style="font-size: smaller"
|- bgcolor="#6699ff"
! align="left" | Device/Pin
! align="left" | Routed to Pin
! align="left" | Description
|- bgcolor="#eeeeee"
| 1/INTA || INTF || ISALPC
|- bgcolor="#eeeeee"
| 1/INTB || INTS ||  SMBus
|- bgcolor="#dddddd"
| 2/INTA || INTG ||  Usb0
|- bgcolor="#dddddd"
| 2/INTB || INTQ ||  Usb1
|- bgcolor="#eeeeee"
| 4/INTA || INTN ||  IDE
|- bgcolor="#dddddd"
| 5/INTA || ITID ||  Sata1
|- bgcolor="#dddddd"
| 5/INTB || IS0P ||  Sata2
|- bgcolor="#dddddd"
| 5/INTC || ISA2 ||  Sata3
|- bgcolor="#eeeeee"
| 6/INTA || INTU ||  Bridge to Bus 1
|- bgcolor="#eeeeee"
| 6/INTB || INTK ||  Audio
|- bgcolor="#dddddd"
| 8/INTA || INTJ ||  Ethernet
|}
Bridges to the PCI-E Slots & Devices
{| border="0" style="font-size: smaller"
|- bgcolor="#6699ff"
! align="left" | Device/Pin
! align="left" | Routed to Pin
! align="left" | Description
|- bgcolor="#eeeeee"
| F/INTA || PCEB ||  Bridge to Bus 7 - PCIE 16x (black)
|- bgcolor="#eeeeee"
| F/INTB || PCEC ||
|- bgcolor="#eeeeee"
| F/INTC || PCED ||
|- bgcolor="#eeeeee"
| F/INTD || PCEA ||
|- bgcolor="#dddddd"
| E/INTA || PCEC ||  Bridge to Bus 6
|- bgcolor="#dddddd"
| E/INTB || PCED ||
|- bgcolor="#dddddd"
| E/INTC || PCEA ||
|- bgcolor="#dddddd"
| E/INTD || PCEB ||
|- bgcolor="#eeeeee"
| D/INTA || PCED ||  Bridge to Bus 5
|- bgcolor="#eeeeee"
| D/INTB || PCEA ||
|- bgcolor="#eeeeee"
| D/INTC || PCEB ||
|- bgcolor="#eeeeee"
| D/INTD || PCEC ||
|- bgcolor="#dddddd"
| C/INTA || PCEA ||  Bridge to Bus 4
|- bgcolor="#dddddd"
| C/INTB || PCEB ||
|- bgcolor="#dddddd"
| C/INTC || PCEC ||
|- bgcolor="#dddddd"
| C/INTD || PCED ||
|- bgcolor="#eeeeee"
| B/INTA || PCEB ||  Bridge to Bus 3
|- bgcolor="#eeeeee"
| B/INTB || PCEC ||
|- bgcolor="#eeeeee"
| B/INTC || PCED ||
|- bgcolor="#eeeeee"
| B/INTD || PCEA ||
|- bgcolor="#dddddd"
| A/INTA || PCEC ||  Bridge to Bus 2 - PCIE 16x (blue)
|- bgcolor="#dddddd"
| A/INTB || PCED ||
|- bgcolor="#dddddd"
| A/INTC || PCEA ||
|- bgcolor="#dddddd"
| A/INTD || PCEB ||
|}

Bus 1 behind bridge from device 6
{| border="0" style="font-size: smaller"
|- bgcolor="#6699ff"
! align="left" | Device/Pin
! align="left" | Routed to Pin
! align="left" | Description
|- bgcolor="#eeeeee"
| 6/INTA || INTC ||
|- bgcolor="#eeeeee"
| 6/INTB || INTD ||
|- bgcolor="#eeeeee"
| 6/INTC || INTA ||
|- bgcolor="#eeeeee"
| 6/INTD || INTB ||
|- bgcolor="#dddddd"
| 7/INTA || INTD ||  PCI Slot 1
|- bgcolor="#dddddd"
| 7/INTB || INTA ||
|- bgcolor="#dddddd"
| 7/INTC || INTB ||
|- bgcolor="#dddddd"
| 7/INTD || INTC ||
|- bgcolor="#eeeeee"
| 8/INTA || INTA ||  PCI Slot 2
|- bgcolor="#eeeeee"
| 8/INTB || INTB ||
|- bgcolor="#eeeeee"
| 8/INTC || INTC ||
|- bgcolor="#eeeeee"
| 8/INTD || INTD ||
|- bgcolor="#dddddd"
| 9/INTA || INTB ||
|- bgcolor="#dddddd"
| 9/INTB || INTC ||
|- bgcolor="#dddddd"
| 9/INTC || INTD ||
|- bgcolor="#dddddd"
| 9/INTD || INTA ||
|- bgcolor="#eeeeee"
| A/INTA || INTC ||
|- bgcolor="#eeeeee"
| A/INTB || INTD ||
|- bgcolor="#eeeeee"
| A/INTC || INTA ||
|- bgcolor="#eeeeee"
| A/INTD || INTB ||
|}
== Example Code for MPtable == 
This source is to do a propper mptable setup on M57SLI.

'''Setup the registers 0x7c-0x84 with the IRQ Values you want to have:'''
  /*I/O APICs:    APIC ID Version State           Address*/
        {
                device_t dev;
                struct resource *res;
                uint32_t dword;
                dev = dev_find_slot(bus_mcp55[0], PCI_DEVFN(sbdn+ 0x1,0));
                if (dev) {
                        res = find_resource(dev, PCI_BASE_ADDRESS_1);
                        if (res) {
                                smp_write_ioapic(mc, apicid_mcp55, 0x11, res->base);
                        }
                        dword = 0xc643c643;
                        pci_write_config32(dev, 0x7c, dword);
                        dword = 0x8da01009;
                        pci_write_config32(dev, 0x80, dword);
                        dword = 0x200018d2;
                        pci_write_config32(dev, 0x84, dword);
                }
        }
'''According to the Registers 0x7c-0x84 do the IRQ setup:'''
  #define PCI_INT(bus, dev, fn, pin)                                      \
        smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW,\
                         bus_mcp55[bus], (((dev)<<2)|(fn)), apicid_mcp55, (pin))

        PCI_INT(0,sbdn+1,1, 10); /* SMBus */
        PCI_INT(0,sbdn+2,0, 22); /* USB */
        PCI_INT(0,sbdn+2,1, 23); /* USB */
        PCI_INT(0,sbdn+4,0, 21); /* IDE */
        PCI_INT(0,sbdn+5,0, 20); /* SATA */
        PCI_INT(0,sbdn+5,1, 21); /* SATA */
        PCI_INT(0,sbdn+5,2, 22); /* SATA */
        PCI_INT(0,sbdn+6,1, 23); /* HD Audio */
        PCI_INT(0,sbdn+8,0, 20); /* GBit Ethernet */
        PCI_INT(1,0x0a,0, 18);   /* Firewire */

        /* The PCIe slots, each on its own bus */
        k = 1;
        for(i=0; i<=3; i++){
                for(j=7; j>=2; j--){
                        if(k>3) k=0;
                        PCI_INT(j,0,i, 16+k);
                        k++;
                }
                k--;
        }

        /* On bus 1: the PCI bus slots...  */
        k=2;
        for(i=0; i<=3; i++){
                for(j=6; j<=10; j++){
                        if(k>3) k=0;
                        PCI_INT(1,j,i, 16+k);
                        k++;
                }
        }