x86: Rename MMCONF_BASE_ADDRESS and make it common across x86

[oweals/u-boot.git] / arch / x86 / Kconfig

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 90e828a26ee4b02290724868cceec5b6683a71b3..928fc60863c81bfe57f6da6e7a071647b2e7ed79 100644 (file)
--- 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