diff options
Diffstat (limited to 'arch/x86/Kconfig')
| -rw-r--r-- | arch/x86/Kconfig | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 90e828a..928fc60 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -356,4 +356,18 @@ source "board/google/chromebook_link/Kconfig" source "board/intel/crownbay/Kconfig" +config PCIE_ECAM_BASE + hex + default 0xe0000000 + help + This is the memory-mapped address of PCI configuration space, which + is only available through the Enhanced Configuration Access + Mechanism (ECAM) with PCI Express. It can be set up almost + anywhere. Before it is set up, it is possible to access PCI + configuration space through I/O access, but memory access is more + convenient. Using this, PCI can be scanned and configured. This + should be set to a region that does not conflict with memory + assigned to PCI devices - i.e. the memory and prefetch regions, as + passed to pci_set_region(). + endmenu |