[Skiboot] [PATCH] phb4: Fix GEN3 for DD2.00

Michael Neuling mikey at neuling.org
Mon Oct 23 20:16:35 AEDT 2017


In this fix:
  62ac7631ae phb4: Fix PCIe GEN4 on DD2.1 and above
We fixed DD2.1 GEN4 but broken DD2.00 as GEN3.

This fixes dd2.00 back to GEN3. This time for sure!

Signed-off-by: Michael Neuling <mikey at neuling.org>
Test-by: Pridhiviraj Paidipeddi <ppaidipe at in.ibm.com>
---
 hw/phb4.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/hw/phb4.c b/hw/phb4.c
index f83883b6d6..15d9c039bc 100644
--- a/hw/phb4.c
+++ b/hw/phb4.c
@@ -4928,7 +4928,7 @@ static void phb4_create(struct dt_node *np)
 	if (p->rev == PHB4_REV_NIMBUS_DD10)
 		p->max_link_speed = 2;
 	if (p->rev == PHB4_REV_NIMBUS_DD20 &&
-	    chip->ec_level == 0 && chip->ec_rev == 0)
+	    ((0xf & chip->ec_level) == 0) && chip->ec_rev == 0)
 		p->max_link_speed = 3;
 	if (dt_has_node_property(np, "ibm,max-link-speed", NULL))
 		p->max_link_speed = dt_prop_get_u32(np, "ibm,max-link-speed");
-- 
2.14.1



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