diff options
Diffstat (limited to 'target/linux/mvebu/patches-4.4/051-ARM-dts-armada-38x-add-buffer-manager-nodes.patch')
| -rw-r--r-- | target/linux/mvebu/patches-4.4/051-ARM-dts-armada-38x-add-buffer-manager-nodes.patch | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/target/linux/mvebu/patches-4.4/051-ARM-dts-armada-38x-add-buffer-manager-nodes.patch b/target/linux/mvebu/patches-4.4/051-ARM-dts-armada-38x-add-buffer-manager-nodes.patch new file mode 100644 index 0000000000..b56de94e3d --- /dev/null +++ b/target/linux/mvebu/patches-4.4/051-ARM-dts-armada-38x-add-buffer-manager-nodes.patch @@ -0,0 +1,53 @@ +From: Marcin Wojtas <mw@semihalf.com> +Date: Mon, 14 Mar 2016 09:38:57 +0100 +Subject: [PATCH] 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> +--- + +--- 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 { |