diff options
Diffstat (limited to 'src/device/Kconfig')
| -rw-r--r-- | src/device/Kconfig | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/src/device/Kconfig b/src/device/Kconfig index 5202c186b46c..e5b90bbcb081 100644 --- a/src/device/Kconfig +++ b/src/device/Kconfig @@ -589,6 +589,13 @@ config ECAM_MMCONF_BASE_ADDRESS config ECAM_MMCONF_BUS_NUMBER int depends on ECAM_MMCONF_SUPPORT + help + Total number of PCI buses in the system across all segment groups. + The number needs to be a power of 2. For values <= 256, + PCI_BUSES_PER_SEGMENT_GROUP is CONFIG_ECAM_MMCONF_BUS_NUMBER and + PCI_SEGMENT_GROUP_COUNT is 1. For values > 256, + PCI_BUSES_PER_SEGMENT_GROUP is 256 and PCI_SEGMENT_GROUP_COUNT is + CONFIG_ECAM_MMCONF_BUS_NUMBER / 256. config ECAM_MMCONF_LENGTH hex @@ -597,6 +604,8 @@ config ECAM_MMCONF_LENGTH default 0x04000000 if ECAM_MMCONF_BUS_NUMBER = 64 default 0x08000000 if ECAM_MMCONF_BUS_NUMBER = 128 default 0x10000000 if ECAM_MMCONF_BUS_NUMBER = 256 + default 0x20000000 if ECAM_MMCONF_BUS_NUMBER = 512 + default 0x80000000 if ECAM_MMCONF_BUS_NUMBER = 1024 default 0x0 config PCI_ALLOW_BUS_MASTER |