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[PATCH v4 net-next 1/9] ARM: dts: armada-38x: add buffer manager nodes

From Gregory CLEMENT <gregory.clement@free-electrons.com>
Newsgroups linux.kernel
Subject [PATCH v4 net-next 1/9] ARM: dts: armada-38x: add buffer manager nodes
Date 2016-03-05 23:50 +0100
Message-ID <r9tbl-4pS-29@gated-at.bofh.it> (permalink)
References <r9t1D-4ml-9@gated-at.bofh.it>
Organization linux.* mail to news gateway

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From: Marcin Wojtas <mw@semihalf.com>

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>
---
 arch/arm/boot/dts/armada-38x.dtsi | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/arch/arm/boot/dts/armada-38x.dtsi b/arch/arm/boot/dts/armada-38x.dtsi
index e8b7f6726772..1b7d690d8e10 100644
--- 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 +626,16 @@
 			#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>;
+			status = "disabled";
+		};
 	};
 
 	clocks {
-- 
2.5.0

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Thread

[PATCH v4 net-next 0/9] API set for HW Buffer management Gregory CLEMENT <gregory.clement@free-electrons.com> - 2016-03-05 23:40 +0100
  [PATCH v4 net-next 9/9] net: mvneta: Use the new hwbm framework Gregory CLEMENT <gregory.clement@free-electrons.com> - 2016-03-05 23:40 +0100
  [PATCH v4 net-next 4/9] ARM: dts: armada-xp: enable buffer manager support on Armada XP boards Gregory CLEMENT <gregory.clement@free-electrons.com> - 2016-03-05 23:40 +0100
  [PATCH v4 net-next 3/9] ARM: dts: armada-xp: add buffer manager nodes Gregory CLEMENT <gregory.clement@free-electrons.com> - 2016-03-05 23:40 +0100
  [PATCH v4 net-next 2/9] ARM: dts: armada-38x: enable buffer manager support on Armada 38x boards Gregory CLEMENT <gregory.clement@free-electrons.com> - 2016-03-05 23:40 +0100
    Re: [PATCH v4 net-next 2/9] ARM: dts: armada-38x: enable buffer  manager support on Armada 38x boards Russell King - ARM Linux <linux@arm.linux.org.uk> - 2016-03-06 21:40 +0100
  [PATCH v4 net-next 8/9] net: add a hardware buffer management helper API Gregory CLEMENT <gregory.clement@free-electrons.com> - 2016-03-05 23:40 +0100
    Re: [PATCH v4 net-next 8/9] net: add a hardware buffer management  helper API Marcin Wojtas <mw@semihalf.com> - 2016-03-06 20:30 +0100
      Re: [PATCH v4 net-next 8/9] net: add a hardware buffer management helper API Gregory CLEMENT <gregory.clement@free-electrons.com> - 2016-03-07 09:20 +0100
  [PATCH v4 net-next 5/9] ARM: dts: armada-xp-openblocks-ax3-4: Add BM support Gregory CLEMENT <gregory.clement@free-electrons.com> - 2016-03-05 23:50 +0100
  [PATCH v4 net-next 1/9] ARM: dts: armada-38x: add buffer manager nodes Gregory CLEMENT <gregory.clement@free-electrons.com> - 2016-03-05 23:50 +0100
  [PATCH v4 net-next 6/9] bus: mvebu-mbus: provide api for obtaining IO and DRAM window information Gregory CLEMENT <gregory.clement@free-electrons.com> - 2016-03-05 23:50 +0100

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