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authorXo Wang <xow@google.com>2016-09-22 16:34:37 -0700
committerPatrick Williams <patrick@stwcx.xyz>2016-10-04 03:01:53 +0000
commitc1ce68b3df3e63a6eef2b9b3c0ff8b176a40df01 (patch)
tree196aec25a5a1e53368f96cbd3f0c990a99ddd5af /pysystemmgr
parent20a194169c527fbded95749acd29ef44dfbe70c7 (diff)
downloadtalos-skeleton-c1ce68b3df3e63a6eef2b9b3c0ff8b176a40df01.tar.gz
talos-skeleton-c1ce68b3df3e63a6eef2b9b3c0ff8b176a40df01.zip
pwrctl: Add latch output to power control
On the Zaius machine, the BMC signals that power up the CPU are gated by a latch to protect against GPIO blips during BMC reset/power loss. This adds an optional power GPIO configuration that controls the latch's enable pin. Its behavior is to assert high when the op-pwrctl runs, allowing power_up lines to propagate past their latches. Signed-off-by: Xo Wang <xow@google.com> Change-Id: Ibf0d1db771033cb9bba82575cca1bd21cfb3ad3d
Diffstat (limited to 'pysystemmgr')
-rw-r--r--pysystemmgr/system_manager.py5
1 files changed, 3 insertions, 2 deletions
diff --git a/pysystemmgr/system_manager.py b/pysystemmgr/system_manager.py
index 5ecc14f..6f4bf81 100644
--- a/pysystemmgr/system_manager.py
+++ b/pysystemmgr/system_manager.py
@@ -180,12 +180,13 @@ class SystemManager(DbusProperties, DbusObjectManager):
return r
@dbus.service.method(DBUS_NAME, in_signature='',
- out_signature='sa(sb)a(sb)')
+ out_signature='ssa(sb)a(sb)')
def getPowerConfiguration(self):
power_good_in = System.POWER_CONFIG.get('power_good_in', '')
+ latch_out = System.POWER_CONFIG.get('latch_out', '')
power_up_outs = System.POWER_CONFIG.get('power_up_outs', [])
reset_outs = System.POWER_CONFIG.get('reset_outs', [])
- r = [power_good_in, power_up_outs, reset_outs]
+ r = [power_good_in, latch_out, power_up_outs, reset_outs]
print "Power GPIO config: " + str(r)
return r
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