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openwrt/target/linux/mvebu/patches-3.10/0056-ARM-mvebu-Add-MBus-to-Armada-370-XP-device-tree.patch
Luka Perkov 3af779eb17 mvebu: backport mainline patches from kernel 3.12 
This is a backport of the patches accepted to the Linux mainline related to
mvebu SoC (Armada XP and Armada 370) between Linux v3.11, and Linux v3.12.
This work mainly covers:

* Ground work for sharing the pxa nand driver(drivers/mtd/nand/pxa3xx_nand.c)
  between the PXA family,and the Armada family.
* Further updates to the mvebu MBus.
* Work and ground work for enabling MSI on the Armada family.
* some phy / mdio bus initialization related work.
* Device tree binding documentation update.

Signed-off-by: Seif Mazareeb <seif.mazareeb@gmail.com>
CC: Luka Perkov <luka@openwrt.org>

SVN-Revision: 39565
2014-02-11 02:07:41 +00:00

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From 8298866bfa7fe9c1e33055322c415f612c16a477 Mon Sep 17 00:00:00 2001
From: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Date: Tue, 28 May 2013 08:56:04 -0300
Subject: [PATCH 056/203] 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 <ezequiel.garcia@free-electrons.com>
Tested-by: Andrew Lunn <andrew@lunn.ch>
Tested-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
---
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(-)
--- a/arch/arm/boot/dts/armada-370-db.dts
+++ b/arch/arm/boot/dts/armada-370-db.dts
@@ -30,6 +30,8 @@
};
soc {
+ ranges = <MBUS_ID(0xf0, 0x01) 0 0xd0000000 0x100000>;
+
internal-regs {
serial@12000 {
clock-frequency = <200000000>;
--- a/arch/arm/boot/dts/armada-370-mirabox.dts
+++ b/arch/arm/boot/dts/armada-370-mirabox.dts
@@ -25,6 +25,8 @@
};
soc {
+ ranges = <MBUS_ID(0xf0, 0x01) 0 0xd0000000 0x100000>;
+
internal-regs {
serial@12000 {
clock-frequency = <200000000>;
--- a/arch/arm/boot/dts/armada-370-rd.dts
+++ b/arch/arm/boot/dts/armada-370-rd.dts
@@ -28,6 +28,8 @@
};
soc {
+ ranges = <MBUS_ID(0xf0, 0x01) 0 0xd0000000 0x100000>;
+
internal-regs {
serial@12000 {
clock-frequency = <200000000>;
--- 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";
@@ -29,18 +31,21 @@
};
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";
--- 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";
--- 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 = <MBUS_ID(0xf0, 0x01) 0 0 0xd0000000 0x100000>;
internal-regs {
serial@12000 {
--- 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 = <MBUS_ID(0xf0, 0x01) 0 0 0xd0000000 0x100000>;
internal-regs {
serial@12000 {
--- 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 = <MBUS_ID(0xf0, 0x01) 0 0 0xd0000000 0x100000>;
internal-regs {
serial@12000 {
--- a/arch/arm/boot/dts/armada-xp.dtsi
+++ b/arch/arm/boot/dts/armada-xp.dtsi
@@ -23,6 +23,8 @@
compatible = "marvell,armadaxp", "marvell,armada-370-xp";
soc {
+ compatible = "marvell,armadaxp-mbus", "simple-bus";
+
internal-regs {
L2: l2-cache {
compatible = "marvell,aurora-system-cache";
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