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Diffstat (limited to 'arch/sh/drivers/pci/Kconfig')
| -rw-r--r-- | arch/sh/drivers/pci/Kconfig | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/arch/sh/drivers/pci/Kconfig b/arch/sh/drivers/pci/Kconfig new file mode 100644 index 000000000000..6d1cbbe6745c --- /dev/null +++ b/arch/sh/drivers/pci/Kconfig @@ -0,0 +1,41 @@ +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. + |