| config PCI | |
| bool "PCI support" | |
| help | |
| Find out whether you have a PCI motherboard. PCI is the name of a | |
| bus system, i.e. the way the CPU talks to the other stuff inside | |
| your box. If you have PCI, say Y, otherwise N. | |
| The PCI-HOWTO, available from | |
| <http://www.tldp.org/docs.html#howto>, contains valuable | |
| information about which PCI hardware does work under Linux and which | |
| doesn't. | |
| config SH_PCIDMA_NONCOHERENT | |
| bool "Cache and PCI noncoherent" | |
| depends on PCI | |
| default y | |
| help | |
| Enable this option if your platform does not have a CPU cache which | |
| remains coherent with PCI DMA. It is safest to say 'Y', although you | |
| will see better performance if you can say 'N', because the PCI DMA | |
| code will not have to flush the CPU's caches. If you have a PCI host | |
| bridge integrated with your SH CPU, refer carefully to the chip specs | |
| to see if you can say 'N' here. Otherwise, leave it as 'Y'. | |
| # This is also board-specific | |
| config PCI_AUTO | |
| bool | |
| depends on PCI | |
| default y | |
| config PCI_AUTO_UPDATE_RESOURCES | |
| bool | |
| depends on PCI_AUTO | |
| default y if !SH_DREAMCAST | |
| help | |
| Selecting this option will cause the PCI auto code to leave your | |
| BAR values alone. Otherwise they will be updated automatically. If | |
| for some reason, you have a board that simply refuses to work | |
| with its resources updated beyond what they are when the device | |
| is powered up, set this to N. Everyone else will want this as Y. | |