summaryrefslogtreecommitdiffstats
path: root/Documentation/devicetree/bindings/net/marvell,prestera.txt
diff options
context:
space:
mode:
authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 10:05:51 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 10:05:51 +0000
commit5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 (patch)
treea94efe259b9009378be6d90eb30d2b019d95c194 /Documentation/devicetree/bindings/net/marvell,prestera.txt
parentInitial commit. (diff)
downloadlinux-upstream.tar.xz
linux-upstream.zip
Adding upstream version 5.10.209.upstream/5.10.209upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r--Documentation/devicetree/bindings/net/marvell,prestera.txt81
1 files changed, 81 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/net/marvell,prestera.txt b/Documentation/devicetree/bindings/net/marvell,prestera.txt
new file mode 100644
index 000000000..e28938ddf
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/marvell,prestera.txt
@@ -0,0 +1,81 @@
+Marvell Prestera Switch Chip bindings
+-------------------------------------
+
+Required properties:
+- compatible: must be "marvell,prestera" and one of the following
+ "marvell,prestera-98dx3236",
+ "marvell,prestera-98dx3336",
+ "marvell,prestera-98dx4251",
+- reg: address and length of the register set for the device.
+- interrupts: interrupt for the device
+
+Optional properties:
+- dfx: phandle reference to the "DFX Server" node
+
+Example:
+
+switch {
+ compatible = "simple-bus";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges = <0 MBUS_ID(0x03, 0x00) 0 0x100000>;
+
+ packet-processor@0 {
+ compatible = "marvell,prestera-98dx3236", "marvell,prestera";
+ reg = <0 0x4000000>;
+ interrupts = <33>, <34>, <35>;
+ dfx = <&dfx>;
+ };
+};
+
+DFX Server bindings
+-------------------
+
+Required properties:
+- compatible: must be "marvell,dfx-server", "simple-bus"
+- ranges: describes the address mapping of a memory-mapped bus.
+- reg: address and length of the register set for the device.
+
+Example:
+
+dfx-server {
+ compatible = "marvell,dfx-server", "simple-bus";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges = <0 MBUS_ID(0x08, 0x00) 0 0x100000>;
+ reg = <MBUS_ID(0x08, 0x00) 0 0x100000>;
+};
+
+Marvell Prestera SwitchDev bindings
+-----------------------------------
+Optional properties:
+- compatible: must be "marvell,prestera"
+- base-mac-provider: describes handle to node which provides base mac address,
+ might be a static base mac address or nvme cell provider.
+
+Example:
+
+eeprom_mac_addr: eeprom-mac-addr {
+ compatible = "eeprom,mac-addr-cell";
+ status = "okay";
+
+ nvmem = <&eeprom_at24>;
+};
+
+prestera {
+ compatible = "marvell,prestera";
+ status = "okay";
+
+ base-mac-provider = <&eeprom_mac_addr>;
+};
+
+The current implementation of Prestera Switchdev PCI interface driver requires
+that BAR2 is assigned to 0xf6000000 as base address from the PCI IO range:
+
+&cp0_pcie0 {
+ ranges = <0x81000000 0x0 0xfb000000 0x0 0xfb000000 0x0 0xf0000
+ 0x82000000 0x0 0xf6000000 0x0 0xf6000000 0x0 0x2000000
+ 0x82000000 0x0 0xf9000000 0x0 0xf9000000 0x0 0x100000>;
+ phys = <&cp0_comphy0 0>;
+ status = "okay";
+};