From 5e12a613ce393472316063dab062ad1afad84cc5 Mon Sep 17 00:00:00 2001 From: Ezequiel Garcia Date: Fri, 26 Jul 2013 10:17:57 -0300 Subject: [PATCH] ARM: mvebu: Add MBus to Armada 370/XP device tree The Armada 370/XP SoC family has a completely configurable address space handled by the MBus controller. This patch introduces the device tree layout of MBus, making the 'soc' node as mbus-compatible. Since every peripheral/controller is a child of this 'soc' node, this makes all of them sit behind the mbus, thus describing the hardware accurately. A translation entry has been added for the internal-regs mapping. This can't be done in the common armada-370-xp.dtsi because A370 and AXP have different addressing width. Signed-off-by: Ezequiel Garcia Tested-by: Andrew Lunn Tested-by: Sebastian Hesselbarth Signed-off-by: Jason Cooper --- arch/arm/boot/dts/armada-370-db.dts | 2 ++ arch/arm/boot/dts/armada-370-mirabox.dts | 2 ++ arch/arm/boot/dts/armada-370-rd.dts | 2 ++ arch/arm/boot/dts/armada-370-xp.dtsi | 15 ++++++++++----- arch/arm/boot/dts/armada-370.dtsi | 4 ++-- arch/arm/boot/dts/armada-xp-db.dts | 4 +--- arch/arm/boot/dts/armada-xp-gp.dts | 4 +--- arch/arm/boot/dts/armada-xp-openblocks-ax3-4.dts | 4 +--- arch/arm/boot/dts/armada-xp.dtsi | 2 ++ 9 files changed, 23 insertions(+), 16 deletions(-) diff --git a/arch/arm/boot/dts/armada-370-db.dts b/arch/arm/boot/dts/armada-370-db.dts index 55b986cc4356..5920b4e4b74c 100644 --- a/arch/arm/boot/dts/armada-370-db.dts +++ b/arch/arm/boot/dts/armada-370-db.dts @@ -30,6 +30,8 @@ }; soc { + ranges = ; + internal-regs { serial@12000 { clock-frequency = <200000000>; diff --git a/arch/arm/boot/dts/armada-370-mirabox.dts b/arch/arm/boot/dts/armada-370-mirabox.dts index 37530afd8af0..a4202b6c16c2 100644 --- a/arch/arm/boot/dts/armada-370-mirabox.dts +++ b/arch/arm/boot/dts/armada-370-mirabox.dts @@ -25,6 +25,8 @@ }; soc { + ranges = ; + internal-regs { serial@12000 { clock-frequency = <200000000>; diff --git a/arch/arm/boot/dts/armada-370-rd.dts b/arch/arm/boot/dts/armada-370-rd.dts index 7aa2171fbc76..dd0ba018b628 100644 --- a/arch/arm/boot/dts/armada-370-rd.dts +++ b/arch/arm/boot/dts/armada-370-rd.dts @@ -28,6 +28,8 @@ }; soc { + ranges = ; + internal-regs { serial@12000 { clock-frequency = <200000000>; diff --git a/arch/arm/boot/dts/armada-370-xp.dtsi b/arch/arm/boot/dts/armada-370-xp.dtsi index 90b117624abb..62639b4a61f9 100644 --- a/arch/arm/boot/dts/armada-370-xp.dtsi +++ b/arch/arm/boot/dts/armada-370-xp.dtsi @@ -18,6 +18,8 @@ /include/ "skeleton64.dtsi" +#define MBUS_ID(target,attributes) (((target) << 24) | ((attributes) << 16)) + / { model = "Marvell Armada 370 and XP SoC"; compatible = "marvell,armada-370-xp"; @@ -38,18 +40,21 @@ }; soc { - #address-cells = <1>; + #address-cells = <2>; #size-cells = <1>; - compatible = "simple-bus"; + controller = <&mbusc>; interrupt-parent = <&mpic>; - ranges = <0 0 0xd0000000 0x0100000 /* internal registers */ - 0xe0000000 0 0xe0000000 0x8100000 /* PCIe */>; internal-regs { compatible = "simple-bus"; #address-cells = <1>; #size-cells = <1>; - ranges; + ranges = <0 MBUS_ID(0xf0, 0x01) 0 0x100000>; + + mbusc: mbus-controller@20000 { + compatible = "marvell,mbus-controller"; + reg = <0x20000 0x100>, <0x20180 0x20>; + }; mpic: interrupt-controller@20000 { compatible = "marvell,mpic"; diff --git a/arch/arm/boot/dts/armada-370.dtsi b/arch/arm/boot/dts/armada-370.dtsi index 08ec6e3a9c7a..4b54e511baef 100644 --- a/arch/arm/boot/dts/armada-370.dtsi +++ b/arch/arm/boot/dts/armada-370.dtsi @@ -29,8 +29,8 @@ }; soc { - ranges = <0 0xd0000000 0x0100000 /* internal registers */ - 0xe0000000 0xe0000000 0x8100000 /* PCIe */>; + compatible = "marvell,armada370-mbus", "simple-bus"; + internal-regs { system-controller@18200 { compatible = "marvell,armada-370-xp-system-controller"; diff --git a/arch/arm/boot/dts/armada-xp-db.dts b/arch/arm/boot/dts/armada-xp-db.dts index a9bd766c5324..0d4ce54d0c2d 100644 --- a/arch/arm/boot/dts/armada-xp-db.dts +++ b/arch/arm/boot/dts/armada-xp-db.dts @@ -30,9 +30,7 @@ }; soc { - ranges = <0 0 0xd0000000 0x100000 /* Internal registers 1MiB */ - 0xe0000000 0 0xe0000000 0x8100000 /* PCIe */ - 0xf0000000 0 0xf0000000 0x1000000>; /* Device Bus, NOR 16MiB */ + ranges = ; internal-regs { serial@12000 { diff --git a/arch/arm/boot/dts/armada-xp-gp.dts b/arch/arm/boot/dts/armada-xp-gp.dts index 54843e5a049f..2fa920987780 100644 --- a/arch/arm/boot/dts/armada-xp-gp.dts +++ b/arch/arm/boot/dts/armada-xp-gp.dts @@ -39,9 +39,7 @@ }; soc { - ranges = <0 0 0xd0000000 0x100000 /* Internal registers 1MiB */ - 0xe0000000 0 0xe0000000 0x8100000 /* PCIe */ - 0xf0000000 0 0xf0000000 0x1000000 /* Device Bus, NOR 16MiB */>; + ranges = ; internal-regs { serial@12000 { diff --git a/arch/arm/boot/dts/armada-xp-openblocks-ax3-4.dts b/arch/arm/boot/dts/armada-xp-openblocks-ax3-4.dts index d090264d81dd..a3e3a1290ff5 100644 --- a/arch/arm/boot/dts/armada-xp-openblocks-ax3-4.dts +++ b/arch/arm/boot/dts/armada-xp-openblocks-ax3-4.dts @@ -27,9 +27,7 @@ }; soc { - ranges = <0 0 0xd0000000 0x100000 /* Internal registers 1MiB */ - 0xe0000000 0 0xe0000000 0x8100000 /* PCIe */ - 0xf0000000 0 0xf0000000 0x8000000 /* Device Bus, NOR 128MiB */>; + ranges = ; internal-regs { serial@12000 { diff --git a/arch/arm/boot/dts/armada-xp.dtsi b/arch/arm/boot/dts/armada-xp.dtsi index 8c07bfe21ee8..803382497c35 100644 --- a/arch/arm/boot/dts/armada-xp.dtsi +++ b/arch/arm/boot/dts/armada-xp.dtsi @@ -27,6 +27,8 @@ }; soc { + compatible = "marvell,armadaxp-mbus", "simple-bus"; + internal-regs { L2: l2-cache { compatible = "marvell,aurora-system-cache"; -- 2.20.1