Allow per-board setting of HT clock and width so
less than optimal PCB designs can still work reliably
with reduced clock.
Signed-off-by: Timothy Pearson <tpearson@raptorengineeringinc.com>
Acked-by: Patrick Georgi <patrick.georgi@coresystems.de>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5179 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
diff --git a/src/Kconfig b/src/Kconfig
index 0fae6216..75f50aa 100644
--- a/src/Kconfig
+++ b/src/Kconfig
@@ -56,6 +56,78 @@
comment "CPU"
source src/cpu/Kconfig
comment "Northbridge"
+
+menu "HyperTransport Setup"
+ depends on (NORTHBRIDGE_AMD_AMDK8 || NORTHBRIDGE_AMD_AMDFAM10) && EXPERT
+
+choice
+ prompt "HyperTransport Frequency"
+ default LIMIT_HT_SPEED_AUTO
+ help
+ This option sets the maximum permissible HyperTransport link frequency.
+ Use of this option will only limit the autodetected HT frequency; it will not (and cannot) increase the frequency beyond the autodetected limits.
+ This is primarily used to work around poorly designed or laid out HT traces on certain motherboards.
+
+config LIMIT_HT_SPEED_200
+ bool "Limit HT frequency to 200MHz"
+config LIMIT_HT_SPEED_400
+ bool "Limit HT frequency to 400MHz"
+config LIMIT_HT_SPEED_600
+ bool "Limit HT frequency to 600MHz"
+config LIMIT_HT_SPEED_800
+ bool "Limit HT frequency to 800MHz"
+config LIMIT_HT_SPEED_1000
+ bool "Limit HT frequency to 1.0GHz"
+config LIMIT_HT_SPEED_1200
+ bool "Limit HT frequency to 1.2GHz"
+config LIMIT_HT_SPEED_1400
+ bool "Limit HT frequency to 1.4GHz"
+config LIMIT_HT_SPEED_1600
+ bool "Limit HT frequency to 1.6GHz"
+config LIMIT_HT_SPEED_1800
+ bool "Limit HT frequency to 1.6GHz"
+config LIMIT_HT_SPEED_2000
+ bool "Limit HT frequency to 2.0GHz"
+config LIMIT_HT_SPEED_2200
+ bool "Limit HT frequency to 2.2GHz"
+config LIMIT_HT_SPEED_2400
+ bool "Limit HT frequency to 2.4GHz"
+config LIMIT_HT_SPEED_2600
+ bool "Limit HT frequency to 2.6GHz"
+config LIMIT_HT_SPEED_AUTO
+ bool "Autodetect HT frequency"
+endchoice
+
+choice
+ prompt "HyperTransport Downlink Width"
+ default LIMIT_HT_DOWN_WIDTH_16
+ help
+ This option sets the maximum permissible HyperTransport link width.
+ Use of this option will only limit the autodetected HT width; it will not (and cannot) increase the width beyond the autodetected limits.
+ This is primarily used to work around poorly designed or laid out HT traces on certain motherboards.
+
+config LIMIT_HT_DOWN_WIDTH_8
+ bool "8 bits"
+config LIMIT_HT_DOWN_WIDTH_16
+ bool "16 bits"
+endchoice
+
+choice
+ prompt "HyperTransport Uplink Width"
+ default LIMIT_HT_UP_WIDTH_16
+ help
+ This option sets the maximum permissible HyperTransport link width.
+ Use of this option will only limit the autodetected HT width; it will not (and cannot) increase the width beyond the autodetected limits.
+ This is primarily used to work around poorly designed or laid out HT traces on certain motherboards.
+
+config LIMIT_HT_UP_WIDTH_8
+ bool "8 bits"
+config LIMIT_HT_UP_WIDTH_16
+ bool "16 bits"
+endchoice
+
+endmenu
+
source src/northbridge/Kconfig
comment "Southbridge"
source src/southbridge/Kconfig