[Skiboot] [PATCH] phb4: The "AB detect" mechanism doesn't exist anymore

[Benjamin Herrenschmidt]

Remove the code copying the property around and the corresponding
HDAT code.

Signed-off-by: Benjamin Herrenschmidt <benh at kernel.crashing.org>
---
 hdata/iohub.c | 10 ----------
 hw/phb4.c     |  2 --
 2 files changed, 12 deletions(-)

diff --git a/hdata/iohub.c b/hdata/iohub.c
index 192e8cf..d40f644 100644
--- a/hdata/iohub.c
+++ b/hdata/iohub.c
@@ -281,16 +281,6 @@ static struct dt_node *add_pec_stack(const struct cechub_io_hub *hub,
 
 	__dt_add_property_u64s(stack, "ibm,lane-eq", 8, eq);
 
-	/* We indicate that this is an IBM setup, which means that
-	 * the presence detect A/B bits are meaningful. So far we
-	 * don't know whether they make any sense on customer setups
-	 * so we only set that when booting with HDAT
-	 *
-	 * XXX: Since we have HDAT in P9 OpenPower boxes
-	 *      is this still going to be true?
-	 */
-	dt_add_property(stack, "ibm,use-ab-detect", NULL, 0);
-
 	return stack;
 }
 
diff --git a/hw/phb4.c b/hw/phb4.c
index 981c16d..77b5f07 100644
--- a/hw/phb4.c
+++ b/hw/phb4.c
@@ -3442,8 +3442,6 @@ static void phb4_probe_stack(struct dt_node *stk_node, uint32_t pec_index,
 	dt_add_property_cells(np, "ibm,phb-stack", stk_node->phandle);
 	dt_add_property_cells(np, "ibm,phb-stack-index", stk_index);
 	dt_add_property_cells(np, "ibm,chip-id", gcid);
-	if (dt_has_node_property(stk_node, "ibm,use-ab-detect", NULL))
-		dt_add_property(np, "ibm,use-ab-detect", NULL, 0);
 	if (dt_has_node_property(stk_node, "ibm,hub-id", NULL))
 		dt_add_property_cells(np, "ibm,hub-id",
 				      dt_prop_get_u32(stk_node, "ibm,hub-id"));