ARM: dts: armada-38x: add buffer manager nodes

Armada 38x network controller supports hardware buffer management (BM).
Since it is now enabled in mvneta driver, appropriate nodes can be added
to armada-38x.dtsi - for the actual common BM unit (bm@c8000) and its
internal SRAM (bm-bppi), which is used for indirect access to buffer
pointer ring residing in DRAM.

Pools - ports mapping, bm-bppi entry in 'soc' node's ranges and optional
parameters are supposed to be set in board files.

Signed-off-by: Marcin Wojtas <mw@semihalf.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/arch/arm/boot/dts/armada-38x.dtsi b/arch/arm/boot/dts/armada-38x.dtsi
index e8b7f67267723241730c8279902b82b8340d8118..066a8f06405cd3b9c9afd068fbab318f3917cef2 100644 (file)
--- a/arch/arm/boot/dts/armada-38x.dtsi
+++ b/arch/arm/boot/dts/armada-38x.dtsi
@@ -540,6 +540,14 @@
                                status = "disabled";
                        };
 
+                       bm: bm@c8000 {
+                               compatible = "marvell,armada-380-neta-bm";
+                               reg = <0xc8000 0xac>;
+                               clocks = <&gateclk 13>;
+                               internal-mem = <&bm_bppi>;
+                               status = "disabled";
+                       };
+
                        sata@e0000 {
                                compatible = "marvell,armada-380-ahci";
                                reg = <0xe0000 0x2000>;
@@ -618,6 +626,17 @@
                        #size-cells = <1>;
                        ranges = <0 MBUS_ID(0x09, 0x15) 0 0x800>;
                };
+
+               bm_bppi: bm-bppi {
+                       compatible = "mmio-sram";
+                       reg = <MBUS_ID(0x0c, 0x04) 0 0x100000>;
+                       ranges = <0 MBUS_ID(0x0c, 0x04) 0 0x100000>;
+                       #address-cells = <1>;
+                       #size-cells = <1>;
+                       clocks = <&gateclk 13>;
+                       no-memory-wc;
+                       status = "disabled";
+               };
        };
 
        clocks {