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-rw-r--r--doc/device-tree/pci.rst1
-rw-r--r--hw/phb4.c2
-rw-r--r--include/phb4.h1
3 files changed, 4 insertions, 0 deletions
diff --git a/doc/device-tree/pci.rst b/doc/device-tree/pci.rst
index 26707c5..dbc0981 100644
--- a/doc/device-tree/pci.rst
+++ b/doc/device-tree/pci.rst
@@ -37,6 +37,7 @@ The following is an example PCI host bridge and device from a POWER9 machine.
phandle = <0x617>;
ibm,phb-stack = <0xd8>;
ibm,phb-index = <0x3>;
+ ibm,phb-pec-index = <0x2>; /* skiboot-v6.2 or later */
reg = <0x600c3 0xc0300000 0x0 0x1000 0x600c3 0x60000000 0x0 0x10000000>;
ibm,mmio-windows = <0x60200 0x0 0x40 0x0 0x600c1 0x80000000 0x0 0x80000000>;
clock-frequency = <0x200 0x0>;
diff --git a/hw/phb4.c b/hw/phb4.c
index 6e89962..4b1acd9 100644
--- a/hw/phb4.c
+++ b/hw/phb4.c
@@ -5315,6 +5315,7 @@ static void phb4_create(struct dt_node *np)
/* Populate base stuff */
p->index = dt_prop_get_u32(np, "ibm,phb-index");
p->chip_id = chip_id;
+ p->pec = dt_prop_get_u32(np, "ibm,phb-pec-index");
chip = get_chip(p->chip_id);
p->regs = (void *)dt_get_address(np, 0, NULL);
p->int_mmio = (void *)dt_get_address(np, 1, NULL);
@@ -5623,6 +5624,7 @@ static void phb4_probe_stack(struct dt_node *stk_node, uint32_t pec_index,
nest_base, nest_stack, pci_base, pci_stack, etu_base);
dt_add_property(np, "ibm,mmio-windows", mmio_win, 8 * mmio_win_sz);
dt_add_property_cells(np, "ibm,phb-index", phb_num);
+ dt_add_property_cells(np, "ibm,phb-pec-index", 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);
diff --git a/include/phb4.h b/include/phb4.h
index 4ab2912..3186dca 100644
--- a/include/phb4.h
+++ b/include/phb4.h
@@ -169,6 +169,7 @@ struct phb4 {
unsigned int index; /* 0..5 index inside p9 */
unsigned int flags;
unsigned int chip_id; /* Chip ID (== GCID on p9) */
+ unsigned int pec;
bool broken;
unsigned int rev; /* 00MMmmmm */
#define PHB4_REV_NIMBUS_DD10 0xa40001