[coreboot-gerrit] New patch to review for coreboot: 1a71c71 AMD cimx/sb800: Disable unused GPP ports
Kyösti Mälkki (kyosti.malkki@gmail.com)
gerrit at coreboot.org
Sat Feb 7 19:03:02 CET 2015
Kyösti Mälkki (kyosti.malkki at gmail.com) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/8385
-gerrit
commit 1a71c71eb47d2697d1d974229c2d7dfabe831bf1
Author: Kyösti Mälkki <kyosti.malkki at gmail.com>
Date: Sat Feb 7 07:07:16 2015 +0200
AMD cimx/sb800: Disable unused GPP ports
If devicetree.cb has GPP port off, really disable it before even
trying to do link training.
Change-Id: I810945da28d86768e88249dc4d29a50ad9f9959b
Signed-off-by: Kyösti Mälkki <kyosti.malkki at gmail.com>
---
src/vendorcode/amd/cimx/sb800/Gpp.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/src/vendorcode/amd/cimx/sb800/Gpp.c b/src/vendorcode/amd/cimx/sb800/Gpp.c
index 6f3bb7c..ae7f3ce 100644
--- a/src/vendorcode/amd/cimx/sb800/Gpp.c
+++ b/src/vendorcode/amd/cimx/sb800/Gpp.c
@@ -293,7 +293,10 @@ PreInitGppLink (
// Mask out non-applicable ports according to the target link configuration mode
for ( portId = 0; portId < MAX_GPP_PORTS; portId++ ) {
- pConfig->PORTCONFIG[portId].PortCfg.PortPresent &= (reg32Value >> portId) & BIT0;
+ if (!(reg32Value & (1 << portId)))
+ pConfig->PORTCONFIG[portId].PortCfg.PortPresent = false;
+ else if (!pConfig->PORTCONFIG[portId].PortCfg.PortPresent)
+ reg32Value &= ~(1 << portId);
}
//
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