Merge tag 'arm-soc/for-4.15/drivers' of http://github.com/Broadcom/st…

…blinux into next/drivers

Pull "Broadcom drivers changes for 4.15" from Florian Fainelli:

This pull requests contains Broadcom SoCs drivers updates for 4.15, please pull
the following:

- Markus adds support for the Broadcom STB DDR PHY frontend which supports
  dynamic firmware loading and offers the ability to respond with DRAM refresh
  rates. He also adds a proper documentation binding document for that
  peripheral

- Brian adds support for S2/S3/S5 system suspend/resume modes on ARM-based SoCs
  which is not new but had been lingering for a long time.

- Justin adds S2/S3 system suspend/resume modes on MIPS-based SoCs which is a
  bit new newer and builds on top of the ARM-based support.

- Florian adds Device Tree binding documents for both ARM and MIPS based systems
  describing the necessary nodes for S2/S3/S5 on these SoCs.

(This pull request somehow missed the 4.14 merge window and is now being sent again
for 4.15 along with build fixes from Arnd).

* tag 'arm-soc/for-4.15/drivers' of http://github.com/Broadcom/stblinux:
  soc bcm: brcmstb: Add support for S2/S3/S5 suspend states (MIPS)
  dt-bindings: Document MIPS Broadcom STB power management nodes
  soc: bcm: brcmstb: Add support for S2/S3/S5 suspend states (ARM)
  dt-bindings: ARM: brcmstb: Update Broadcom STB Power Management binding
  memory: brcmstb: Add driver for DPFE
  dt-bindings: Add bindings for Broadcom STB DRAM Sensors

Documentation/devicetree/bindings/arm/bcm/brcm,brcmstb.txt

@@ -164,6 +164,8 @@ Control registers for this memory controller's DDR PHY.
 
 Required properties:
 - compatible     : should contain one of these
+	"brcm,brcmstb-ddr-phy-v71.1"
+	"brcm,brcmstb-ddr-phy-v72.0"
 	"brcm,brcmstb-ddr-phy-v225.1"
 	"brcm,brcmstb-ddr-phy-v240.1"
 	"brcm,brcmstb-ddr-phy-v240.2"
@@ -184,7 +186,9 @@ Sequencer DRAM parameters and control registers. Used for Self-Refresh
 Power-Down (SRPD), among other things.
 
 Required properties:
-- compatible     : should contain "brcm,brcmstb-memc-ddr"
+- compatible     : should contain one of these
+	"brcm,brcmstb-memc-ddr-rev-b.2.2"
+	"brcm,brcmstb-memc-ddr"
 - reg            : the MEMC DDR register range
 
 Example:

Documentation/devicetree/bindings/memory-controllers/brcm,dpfe-cpu.txt

@@ -0,0 +1,27 @@
+DDR PHY Front End (DPFE) for Broadcom STB
+=========================================
+
+DPFE and the DPFE firmware provide an interface for the host CPU to
+communicate with the DCPU, which resides inside the DDR PHY.
+
+There are three memory regions for interacting with the DCPU. These are
+specified in a single reg property.
+
+Required properties:
+  - compatible: must be "brcm,bcm7271-dpfe-cpu", "brcm,bcm7268-dpfe-cpu"
+    or "brcm,dpfe-cpu"
+  - reg: must reference three register ranges
+      - start address and length of the DCPU register space
+      - start address and length of the DCPU data memory space
+      - start address and length of the DCPU instruction memory space
+  - reg-names: must contain "dpfe-cpu", "dpfe-dmem", and "dpfe-imem";
+        they must be in the same order as the register declarations
+
+Example:
+	dpfe_cpu0: dpfe-cpu@f1132000 {
+		compatible = "brcm,bcm7271-dpfe-cpu", "brcm,dpfe-cpu";
+		reg =  <0xf1132000 0x180
+			0xf1134000 0x1000
+			0xf1138000 0x4000>;
+		reg-names = "dpfe-cpu", "dpfe-dmem", "dpfe-imem";
+	};

Documentation/devicetree/bindings/mips/brcm/soc.txt

@@ -11,3 +11,156 @@ Required properties:
 
 The experimental -viper variants are for running Linux on the 3384's
 BMIPS4355 cable modem CPU instead of the BMIPS5000 application processor.
+
+Power management
+----------------
+
+For power management (particularly, S2/S3/S5 system suspend), the following SoC
+components are needed:
+
+= Always-On control block (AON CTRL)
+
+This hardware provides control registers for the "always-on" (even in low-power
+modes) hardware, such as the Power Management State Machine (PMSM).
+
+Required properties:
+- compatible     : should be one of
+		   "brcm,bcm7425-aon-ctrl"
+		   "brcm,bcm7429-aon-ctrl"
+		   "brcm,bcm7435-aon-ctrl" and
+		   "brcm,brcmstb-aon-ctrl"
+- reg            : the register start and length for the AON CTRL block
+
+Example:
+
+syscon@410000 {
+	compatible = "brcm,bcm7425-aon-ctrl", "brcm,brcmstb-aon-ctrl";
+	reg = <0x410000 0x400>;
+};
+
+= Memory controllers
+
+A Broadcom STB SoC typically has a number of independent memory controllers,
+each of which may have several associated hardware blocks, which are versioned
+independently (control registers, DDR PHYs, etc.). One might consider
+describing these controllers as a parent "memory controllers" block, which
+contains N sub-nodes (one for each controller in the system), each of which is
+associated with a number of hardware register resources (e.g., its PHY.
+
+== MEMC (MEMory Controller)
+
+Represents a single memory controller instance.
+
+Required properties:
+- compatible     : should contain "brcm,brcmstb-memc" and "simple-bus"
+- ranges	 : should contain the child address in the parent address
+		   space, must be 0 here, and the register start and length of
+		   the entire memory controller (including all sub nodes: DDR PHY,
+		   arbiter, etc.)
+- #address-cells : must be 1
+- #size-cells	 : must be 1
+
+Example:
+
+	memory-controller@0 {
+		compatible = "brcm,brcmstb-memc", "simple-bus";
+		ranges = <0x0 0x0 0xa000>;
+		#address-cells = <1>;
+		#size-cells = <1>;
+
+		memc-arb@1000 {
+			...
+		};
+
+		memc-ddr@2000 {
+			...
+		};
+
+		ddr-phy@6000 {
+			...
+		};
+	};
+
+Should contain subnodes for any of the following relevant hardware resources:
+
+== DDR PHY control
+
+Control registers for this memory controller's DDR PHY.
+
+Required properties:
+- compatible     : should contain one of these
+		   "brcm,brcmstb-ddr-phy-v64.5"
+		   "brcm,brcmstb-ddr-phy"
+
+- reg            : the DDR PHY register range and length
+
+Example:
+
+	ddr-phy@6000 {
+		compatible = "brcm,brcmstb-ddr-phy-v64.5";
+		reg = <0x6000 0xc8>;
+	};
+
+== DDR memory controller sequencer
+
+Control registers for this memory controller's DDR memory sequencer
+
+Required properties:
+- compatible     : should contain one of these
+		   "brcm,bcm7425-memc-ddr"
+		   "brcm,bcm7429-memc-ddr"
+		   "brcm,bcm7435-memc-ddr" and
+		   "brcm,brcmstb-memc-ddr"
+
+- reg            : the DDR sequencer register range and length
+
+Example:
+
+	memc-ddr@2000 {
+		compatible = "brcm,bcm7425-memc-ddr", "brcm,brcmstb-memc-ddr";
+		reg = <0x2000 0x300>;
+	};
+
+== MEMC Arbiter
+
+The memory controller arbiter is responsible for memory clients allocation
+(bandwidth, priorities etc.) and needs to have its contents restored during
+deep sleep states (S3).
+
+Required properties:
+
+- compatible	: should contain one of these
+		  "brcm,brcmstb-memc-arb-v10.0.0.0"
+		  "brcm,brcmstb-memc-arb"
+
+- reg		: the DDR Arbiter register range and length
+
+Example:
+
+	memc-arb@1000 {
+		compatible = "brcm,brcmstb-memc-arb-v10.0.0.0";
+		reg = <0x1000 0x248>;
+	};
+
+== Timers
+
+The Broadcom STB chips contain a timer block with several general purpose
+timers that can be used.
+
+Required properties:
+
+- compatible	: should contain one of:
+		  "brcm,bcm7425-timers"
+		  "brcm,bcm7429-timers"
+		  "brcm,bcm7435-timers and
+		  "brcm,brcmstb-timers"
+- reg		: the timers register range
+- interrupts	: the interrupt line for this timer block
+
+Example:
+
+	timers: timer@4067c0 {
+		compatible = "brcm,bcm7425-timers", "brcm,brcmstb-timers";
+		reg = <0x4067c0 0x40>;
+		interrupts = <&periph_intc 19>;
+	};

MAINTAINERS

@@ -2974,6 +2974,14 @@ L:	bcm-kernel-feedback-list@broadcom.com
 S:	Maintained
 F:	drivers/mtd/nand/brcmnand/
 
+BROADCOM STB DPFE DRIVER
+M:	Markus Mayer <mmayer@broadcom.com>
+M:	bcm-kernel-feedback-list@broadcom.com
+L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
+S:	Maintained
+F:	Documentation/devicetree/bindings/memory-controllers/brcm,dpfe-cpu.txt
+F:	drivers/memory/brcmstb_dpfe.c
+
 BROADCOM SYSTEMPORT ETHERNET DRIVER
 M:	Florian Fainelli <f.fainelli@gmail.com>
 L:	netdev@vger.kernel.org

drivers/memory/Makefile

@@ -8,6 +8,7 @@ endif
 obj-$(CONFIG_ARM_PL172_MPMC)	+= pl172.o
 obj-$(CONFIG_ATMEL_SDRAMC)	+= atmel-sdramc.o
 obj-$(CONFIG_ATMEL_EBI)		+= atmel-ebi.o
+obj-$(CONFIG_ARCH_BRCMSTB)	+= brcmstb_dpfe.o
 obj-$(CONFIG_TI_AEMIF)		+= ti-aemif.o
 obj-$(CONFIG_TI_EMIF)		+= emif.o
 obj-$(CONFIG_OMAP_GPMC)		+= omap-gpmc.o