Merge tag 'mvebu' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC updates for Marvell mvebu/kirkwood from Olof Johansson:
 "This is a branch with updates for Marvell's mvebu/kirkwood platforms.
  They came in late-ish, and were heavily interdependent such that it
  didn't make sense to split them up across the cross-platform topic
  branches.  So here they are (for the second release in a row) in a
  branch on their own."

* tag 'mvebu' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (88 commits)
  arm: l2x0: add aurora related properties to OF binding
  arm: mvebu: add Aurora L2 Cache Controller to the DT
  arm: mvebu: add L2 cache support
  dma: mv_xor: fix error handling path
  dma: mv_xor: fix error checking of irq_of_parse_and_map()
  dma: mv_xor: use request_irq() instead of devm_request_irq()
  dma: mv_xor: clear the window override control registers
  arm: mvebu: fix address decoding armada_cfg_base() function
  ARM: mvebu: update defconfig with I2C and RTC support
  ARM: mvebu: Add SATA support for OpenBlocks AX3-4
  ARM: mvebu: Add support for the RTC in OpenBlocks AX3-4
  ARM: mvebu: Add support for I2C on OpenBlocks AX3-4
  ARM: mvebu: Add support for I2C controllers in Armada 370/XP
  arm: mvebu: Add hardware I/O Coherency support
  arm: plat-orion: Add coherency attribute when setup mbus target
  arm: dma mapping: Export a dma ops function arm_dma_set_mask
  arm: mvebu: Add SMP support for Armada XP
  arm: mm: Add support for PJ4B cpu and init routines
  arm: mvebu: Add IPI support via doorbells
  arm: mvebu: Add initial support for power managmement service unit
  ...

3 files changed, 187 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/clock/mvebu-core-clock.txt b/Documentation/devicetree/bindings/clock/mvebu-core-clock.txt
new file mode 100644
index 00000000000..1e662948661
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/mvebu-core-clock.txt
@@ -0,0 +1,47 @@
+* Core Clock bindings for Marvell MVEBU SoCs
+
+Marvell MVEBU SoCs usually allow to determine core clock frequencies by
+reading the Sample-At-Reset (SAR) register. The core clock consumer should
+specify the desired clock by having the clock ID in its "clocks" phandle cell.
+
+The following is a list of provided IDs and clock names on Armada 370/XP:
+ 0 = tclk    (Internal Bus clock)
+ 1 = cpuclk  (CPU clock)
+ 2 = nbclk   (L2 Cache clock)
+ 3 = hclk    (DRAM control clock)
+ 4 = dramclk (DDR clock)
+
+The following is a list of provided IDs and clock names on Kirkwood and Dove:
+ 0 = tclk   (Internal Bus clock)
+ 1 = cpuclk (CPU0 clock)
+ 2 = l2clk  (L2 Cache clock derived from CPU0 clock)
+ 3 = ddrclk (DDR controller clock derived from CPU0 clock)
+
+Required properties:
+- compatible : shall be one of the following:
+	"marvell,armada-370-core-clock" - For Armada 370 SoC core clocks
+	"marvell,armada-xp-core-clock" - For Armada XP SoC core clocks
+	"marvell,dove-core-clock" - for Dove SoC core clocks
+	"marvell,kirkwood-core-clock" - for Kirkwood SoC (except mv88f6180)
+	"marvell,mv88f6180-core-clock" - for Kirkwood MV88f6180 SoC
+- reg : shall be the register address of the Sample-At-Reset (SAR) register
+- #clock-cells : from common clock binding; shall be set to 1
+
+Optional properties:
+- clock-output-names : from common clock binding; allows overwrite default clock
+	output names ("tclk", "cpuclk", "l2clk", "ddrclk")
+
+Example:
+
+core_clk: core-clocks@d0214 {
+	compatible = "marvell,dove-core-clock";
+	reg = <0xd0214 0x4>;
+	#clock-cells = <1>;
+};
+
+spi0: spi@10600 {
+	compatible = "marvell,orion-spi";
+	/* ... */
+	/* get tclk from core clock provider */
+	clocks = <&core_clk 0>;
+};
diff --git a/Documentation/devicetree/bindings/clock/mvebu-cpu-clock.txt b/Documentation/devicetree/bindings/clock/mvebu-cpu-clock.txt
new file mode 100644
index 00000000000..feb83013071
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/mvebu-cpu-clock.txt
@@ -0,0 +1,21 @@
+Device Tree Clock bindings for cpu clock of Marvell EBU platforms
+
+Required properties:
+- compatible : shall be one of the following:
+	"marvell,armada-xp-cpu-clock" - cpu clocks for Armada XP
+- reg : Address and length of the clock complex register set
+- #clock-cells : should be set to 1.
+- clocks : shall be the input parent clock phandle for the clock.
+
+cpuclk: clock-complex@d0018700 {
+	#clock-cells = <1>;
+	compatible = "marvell,armada-xp-cpu-clock";
+	reg = <0xd0018700 0xA0>;
+	clocks = <&coreclk 1>;
+}
+
+cpu@0 {
+	compatible = "marvell,sheeva-v7";
+	reg = <0>;
+	clocks = <&cpuclk 0>;
+};
diff --git a/Documentation/devicetree/bindings/clock/mvebu-gated-clock.txt b/Documentation/devicetree/bindings/clock/mvebu-gated-clock.txt
new file mode 100644
index 00000000000..7337005ef5e
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/mvebu-gated-clock.txt
@@ -0,0 +1,119 @@
+* Gated Clock bindings for Marvell Orion SoCs
+
+Marvell Dove and Kirkwood allow some peripheral clocks to be gated to save
+some power. The clock consumer should specify the desired clock by having
+the clock ID in its "clocks" phandle cell. The clock ID is directly mapped to
+the corresponding clock gating control bit in HW to ease manual clock lookup
+in datasheet.
+
+The following is a list of provided IDs for Armada 370:
+ID	Clock	Peripheral
+-----------------------------------
+0	Audio	AC97 Cntrl
+1	pex0_en	PCIe 0 Clock out
+2	pex1_en	PCIe 1 Clock out
+3	ge1	Gigabit Ethernet 1
+4	ge0	Gigabit Ethernet 0
+5	pex0	PCIe Cntrl 0
+9	pex1	PCIe Cntrl 1
+15	sata0	SATA Host 0
+17	sdio	SDHCI Host
+25	tdm	Time Division Mplx
+28	ddr	DDR Cntrl
+30	sata1	SATA Host 0
+
+The following is a list of provided IDs for Armada XP:
+ID	Clock	Peripheral
+-----------------------------------
+0	audio	Audio Cntrl
+1	ge3	Gigabit Ethernet 3
+2	ge2	Gigabit Ethernet 2
+3	ge1	Gigabit Ethernet 1
+4	ge0	Gigabit Ethernet 0
+5	pex0	PCIe Cntrl 0
+6	pex1	PCIe Cntrl 1
+7	pex2	PCIe Cntrl 2
+8	pex3	PCIe Cntrl 3
+13	bp
+14	sata0lnk
+15	sata0	SATA Host 0
+16	lcd	LCD Cntrl
+17	sdio	SDHCI Host
+18	usb0	USB Host 0
+19	usb1	USB Host 1
+20	usb2	USB Host 2
+22	xor0	XOR DMA 0
+23	crypto	CESA engine
+25	tdm	Time Division Mplx
+28	xor1	XOR DMA 1
+29	sata1lnk
+30	sata1	SATA Host 0
+
+The following is a list of provided IDs for Dove:
+ID	Clock	Peripheral
+-----------------------------------
+0	usb0	USB Host 0
+1	usb1	USB Host 1
+2	ge	Gigabit Ethernet
+3	sata	SATA Host
+4	pex0	PCIe Cntrl 0
+5	pex1	PCIe Cntrl 1
+8	sdio0	SDHCI Host 0
+9	sdio1	SDHCI Host 1
+10	nand	NAND Cntrl
+11	camera	Camera Cntrl
+12	i2s0	I2S Cntrl 0
+13	i2s1	I2S Cntrl 1
+15	crypto	CESA engine
+21	ac97	AC97 Cntrl
+22	pdma	Peripheral DMA
+23	xor0	XOR DMA 0
+24	xor1	XOR DMA 1
+30	gephy	Gigabit Ethernel PHY
+Note: gephy(30) is implemented as a parent clock of ge(2)
+
+The following is a list of provided IDs for Kirkwood:
+ID	Clock	Peripheral
+-----------------------------------
+0	ge0	Gigabit Ethernet 0
+2	pex0	PCIe Cntrl 0
+3	usb0	USB Host 0
+4	sdio	SDIO Cntrl
+5	tsu	Transp. Stream Unit
+6	dunit	SDRAM Cntrl
+7	runit	Runit
+8	xor0	XOR DMA 0
+9	audio	I2S Cntrl 0
+14	sata0	SATA Host 0
+15	sata1	SATA Host 1
+16	xor1	XOR DMA 1
+17	crypto	CESA engine
+18	pex1	PCIe Cntrl 1
+19	ge1	Gigabit Ethernet 0
+20	tdm	Time Division Mplx
+
+Required properties:
+- compatible : shall be one of the following:
+	"marvell,dove-gating-clock" - for Dove SoC clock gating
+	"marvell,kirkwood-gating-clock" - for Kirkwood SoC clock gating
+- reg : shall be the register address of the Clock Gating Control register
+- #clock-cells : from common clock binding; shall be set to 1
+
+Optional properties:
+- clocks : default parent clock phandle (e.g. tclk)
+
+Example:
+
+gate_clk: clock-gating-control@d0038 {
+	compatible = "marvell,dove-gating-clock";
+	reg = <0xd0038 0x4>;
+	/* default parent clock is tclk */
+	clocks = <&core_clk 0>;
+	#clock-cells = <1>;
+};
+
+sdio0: sdio@92000 {
+	compatible = "marvell,dove-sdhci";
+	/* get clk gate bit 8 (sdio0) */
+	clocks = <&gate_clk 8>;
+};