[PATCH v2 3/6] dt-bindings: PCI: ti,am65: Extend for use with PVU

Jan Kiszka
2024-08-26T21:50:12Z

From: Jan Kiszka <jan.kiszka@siemens.com>

Describe also the VMAP registers which are needed in order to make use
of the PVU with this PCI host. Furthermore, permit to specify a
restricted DMA pool by phandle.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
---
.../devicetree/bindings/pci/ti,am65-pci-host.yaml | 13 ++++++++++---
1 file changed, 10 insertions(+), 3 deletions(-)

diff --git a/Documentation/devicetree/bindings/pci/ti,am65-pci-host.yaml b/Documentation/devicetree/bindings/pci/ti,am65-pci-host.yaml
index 0a9d10532cc8..72f78f21e1e8 100644
--- a/Documentation/devicetree/bindings/pci/ti,am65-pci-host.yaml
+++ b/Documentation/devicetree/bindings/pci/ti,am65-pci-host.yaml
@@ -20,7 +20,7 @@ properties:
- ti,keystone-pcie

reg:
- maxItems: 4
+ maxItems: 6

reg-names:
items:
@@ -28,6 +28,8 @@ properties:
- const: dbics
- const: config
- const: atu
+ - const: vmap_lp
+ - const: vmap_hp

interrupts:
maxItems: 1
@@ -69,6 +71,9 @@ properties:
items:
pattern: '^pcie-phy[0-1]$'

+ memory-region:
+ description: phandle to restricted DMA pool to be used for all devices behind this controller
+
required:
- compatible
- reg
@@ -104,8 +109,10 @@ examples:
reg = <0x5500000 0x1000>,
<0x5501000 0x1000>,
<0x10000000 0x2000>,
- <0x5506000 0x1000>;
- reg-names = "app", "dbics", "config", "atu";
+ <0x5506000 0x1000>,
+ <0x2900000 0x1000>,
+ <0x2908000 0x1000>;
+ reg-names = "app", "dbics", "config", "atu", "vmap_lp", "vmap_hp";
power-domains = <&k3_pds 120 TI_SCI_PD_EXCLUSIVE>;
#address-cells = <3>;
#size-cells = <2>;
--
2.43.0