Add binding documentation for TI's HyperBus memory controller present on
AM654 SoC.
Signed-off-by: Vignesh Raghavendra <vigneshr@xxxxxx>
---
.../devicetree/bindings/mtd/ti,am654-hbmc.txt | 32 +++++++++++++++++++
MAINTAINERS | 1 +
2 files changed, 33 insertions(+)
create mode 100644 Documentation/devicetree/bindings/mtd/ti,am654-hbmc.txt
diff --git a/Documentation/devicetree/bindings/mtd/ti,am654-hbmc.txt b/Documentation/devicetree/bindings/mtd/ti,am654-hbmc.txt
new file mode 100644
index 000000000000..fc87c7918389
--- /dev/null
+++ b/Documentation/devicetree/bindings/mtd/ti,am654-hbmc.txt
@@ -0,0 +1,32 @@
+Bindings for HyperBus Memory Controller (HBMC) on TI's K3 family of SoCs
+
+Required properties:
+- compatible : "ti,am654-hbmc" for AM654 SoC
+- reg : Two entries:
+ First entry pointed to the register space of HBMC controller
+ Second entry pointing to the memory map region dedicated for
+ MMIO access to attached flash devices
+- ranges : Address range allocated for each chipselect in the MMIO space
+
+Optional properties:
+- mux-controls : phandle to the multiplexer that controls selection of
+ HBMC vs OSPI. Mux state of 1 indicates HBMC is selected.
+
+Example:
+
+ hbmc: hbmc@47034000 {
+ compatible = "ti,am654-hbmc";
+ reg = <0x0 0x47034000 0x0 0x100>,
+ <0x5 0x00000000 0x1 0x0000000>;
+ power-domains = <&k3_pds 55>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges = <0x0 0x5 0x00000000 0x4000000>, /* CS0 - 64MB */
+ <0x1 0x5 0x04000000 0x4000000>; /* CS1 - 64MB
+
+ /* Slave flash node */
+ flash@0 {
+ compatible = "cypress,hyperflash";
+ reg = <0x0 0x4000000>;
+ };
+ };
diff --git a/MAINTAINERS b/MAINTAINERS
index a5f22f85c848..1ade81f9a32a 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -7258,6 +7258,7 @@ S: Supported
F: drivers/mtd/hyperbus/
F: include/linux/mtd/hyperbus.h
F: Documentation/devicetree/bindings/mtd/cypress,hyperflash.txt
+F: Documentation/devicetree/bindings/mtd/ti,am654-hbmc.txt
HYPERVISOR VIRTUAL CONSOLE DRIVER
L: linuxppc-dev@xxxxxxxxxxxxxxxx
--
2.21.0
