1config PCH 2 bool "Enable Platform-controller Hub (PCH) support" 3 depends on X86 || SANDBOX 4 help 5 Most x86 chips include a PCH which is responsible for handling 6 parts of the system not handled by that CPU. It supersedes the 7 northbridge / southbridge architecture that was previously used. The 8 PCH allows for higher performance since the memory functions are 9 handled in the CPU. 10 11config X86_PCH7 12 bool "Add support for Intel PCH7" 13 default y if X86 14 help 15 Enable this if your SoC uses Platform Controller Hub 7 (PCH7). This 16 dates from about 2011 and is used on baytrail, for example. The 17 PCH provides access to the GPIO and SPI base addresses, among other 18 functions. 19 20config X86_PCH9 21 bool "Add support for Intel PCH9" 22 default y if X86 23 help 24 Enable this if your SoC uses Platform Controller Hub 9 (PCH9). This 25 dates from about 2015 and is used on baytrail, for example. The 26 PCH provides access to the GPIO and SPI base addresses, among other 27 functions. 28