Nvidia CK804 Porting Notes: Difference between revisions
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== Interrupt Routing Registers == | == Interrupt Routing Registers == | ||
Please note that this is valid for [ | Please note that this is valid for [[Nvidia MCP55 Porting Notes|MCP55]] too. | ||
Obtained via playing with these registers with '''setpci(8)'''. Some information is still missing. | Obtained via playing with these registers with '''setpci(8)'''. Some information is still missing. | ||
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! align="left" | Bits | ! align="left" | Bits | ||
! align="left" | Description | ! align="left" | Description | ||
|- bgcolor="#eeeeee" | |||
| 19:16 || AC'97 audio (device 4, function 0) | |||
|- bgcolor="#eeeeee" | |- bgcolor="#eeeeee" | ||
| 11:8 || NIC (device 10, function 0) | | 11:8 || NIC (device 10, function 0) | ||
| Line 94: | Line 96: | ||
should be routed to the same pin so that the device behaves the way the | should be routed to the same pin so that the device behaves the way the | ||
driver expects them to. | driver expects them to. | ||
{{Cc-by-2.5}} | {{Cc-by-2.5}} | ||
Latest revision as of 14:11, 3 February 2010
This document does not (at present) attempt to be as complete as the AMD Geode Porting Guide, which has more general information.
Documentation
There is no publicly available documentation on the CK804, the source (and, of course, reverse engineering) is your only hope.
Audio and Network
If your CK804 has an AC97 codec, or ethernet PHY connected to it, you'll probably want to define CK804_USE_ACI and CK804_USE_NIC respectively.
Without CK804_USE_ACI = 1, the audio driver will time out when attempting to communicate with the codec.
Interrupt Routing Registers
Please note that this is valid for MCP55 too.
Obtained via playing with these registers with setpci(8). Some information is still missing.
These routing registers are in the LPC bridge PCI configuration space (device 1, function 0).
Nibble values for routing registers:
| Nibble | APIC Pin |
|---|---|
| 1h | 23 |
| 2h | 22 |
| 3h | 16 |
| 4h | 17 |
| 5h | 5 |
| 6h | 18 |
| 7h | 7 |
| 8h | 20 |
| Ch | 12 |
| Dh | 21 |
| Eh | 14 |
| Fh | 15 |
7c.l:
| Bits | Description |
|---|---|
| 27:24 | SATA at device 7, second port |
| 23:20 | SATA at device 8, second port |
| 15:0 | PCI IRQ mappings? |
80.l:
| Bits | Description |
|---|---|
| 31:28 | SATA at device 7, first port |
| 27:24 | SATA at device 8, first port |
| 15:12 | EHCI (device 2, function 1) |
84.l:
| Bits | Description |
|---|---|
| 19:16 | AC'97 audio (device 4, function 0) |
| 11:8 | NIC (device 10, function 0) |
| 3:0 | OHCI (device 2, function 0) |
One thing to note is that interrupts on both ports of the SATA controllers should be routed to the same pin so that the device behaves the way the driver expects them to.
 
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This file is licensed under Creative Commons Attribution 2.5 License. In short: you are free to distribute and modify the file as long as you attribute its author(s) or licensor(s). |