Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus

Pull MIPS updates from Ralf Baechle:
 "This is an unusually large pull request for MIPS - in parts because
  lots of patches missed the 3.18 deadline but primarily because some
  folks opened the flood gates.

   - Retire the MIPS-specific phys_t with the generic phys_addr_t.
   - Improvments for the backtrace code used by oprofile.
   - Better backtraces on SMP systems.
   - Cleanups for the Octeon platform code.
   - Cleanups and fixes for the Loongson platform code.
   - Cleanups and fixes to the firmware library.
   - Switch ATH79 platform to use the firmware library.
   - Grand overhault to the SEAD3 and Malta interrupt code.
   - Move the GIC interrupt code to drivers/irqchip
   - Lots of GIC cleanups and updates to the GIC code to use modern IRQ
     infrastructures and features of the kernel.
   - OF documentation updates for the GIC bindings
   - Move GIC clocksource driver to drivers/clocksource
   - Merge GIC clocksource driver with clockevent driver.
   - Further updates to bring the GIC clocksource driver up to date.
   - R3000 TLB code cleanups
   - Improvments to the Loongson 3 platform code.
   - Convert pr_warning to pr_warn.
   - Merge a bunch of small lantiq and ralink fixes that have been
     staged/lingering inside the openwrt tree for a while.
   - Update archhelp for IP22/IP32
   - Fix a number of issues for Loongson 1B.
   - New clocksource and clockevent driver for Loongson 1B.
   - Further work on clk handling for Loongson 1B.
   - Platform work for Broadcom BMIPS.
   - Error handling cleanups for TurboChannel.
   - Fixes and optimization to the microMIPS support.
   - Option to disable the FTLB.
   - Dump more relevant information on machine check exception
   - Change binfmt to allow arch to examine PT_*PROC headers
   - Support for new style FPU register model in O32
   - VDSO randomization.
   - BCM47xx cleanups
   - BCM47xx reimplement the way the kernel accesses NVRAM information.
   - Random cleanups
   - Add support for ATH25 platforms
   - Remove pointless locking code in some PCI platforms.
   - Some improvments to EVA support
   - Minor Alchemy cleanup"

* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (185 commits)
  MIPS: Add MFHC0 and MTHC0 instructions to uasm.
  MIPS: Cosmetic cleanups of page table headers.
  MIPS: Add CP0 macros for extended EntryLo registers
  MIPS: Remove now unused definition of phys_t.
  MIPS: Replace use of phys_t with phys_addr_t.
  MIPS: Replace MIPS-specific 64BIT_PHYS_ADDR with generic PHYS_ADDR_T_64BIT
  PCMCIA: Alchemy Don't select 64BIT_PHYS_ADDR in Kconfig.
  MIPS: lib: memset: Clean up some MIPS{EL,EB} ifdefery
  MIPS: iomap: Use __mem_{read,write}{b,w,l} for MMIO
  MIPS: <asm/types.h> fix indentation.
  MAINTAINERS: Add entry for BMIPS multiplatform kernel
  MIPS: Enable VDSO randomization
  MIPS: Remove a temporary hack for debugging cache flushes in SMTC configuration
  MIPS: Remove declaration of obsolete arch_init_clk_ops()
  MIPS: atomic.h: Reformat to fit in 79 columns
  MIPS: Apply `.insn' to fixup labels throughout
  MIPS: Fix microMIPS LL/SC immediate offsets
  MIPS: Kconfig: Only allow 32-bit microMIPS builds
  MIPS: signal.c: Fix an invalid cast in ISA mode bit handling
  MIPS: mm: Only build one microassembler that is suitable
  ...

Documentation/devicetree/bindings/interrupt-controller/mips-gic.txt

+MIPS Global Interrupt Controller (GIC)
+
+The MIPS GIC routes external interrupts to individual VPEs and IRQ pins.
+It also supports local (per-processor) interrupts and software-generated
+interrupts which can be used as IPIs.  The GIC also includes a free-running
+global timer, per-CPU count/compare timers, and a watchdog.
+
+Required properties:
+- compatible : Should be "mti,gic".
+- interrupt-controller : Identifies the node as an interrupt controller
+- #interrupt-cells : Specifies the number of cells needed to encode an
+  interrupt specifier.  Should be 3.
+  - The first cell is the type of interrupt, local or shared.
+    See <include/dt-bindings/interrupt-controller/mips-gic.h>.
+  - The second cell is the GIC interrupt number.
+  - The third cell encodes the interrupt flags.
+    See <include/dt-bindings/interrupt-controller/irq.h> for a list of valid
+    flags.
+
+Optional properties:
+- reg : Base address and length of the GIC registers.  If not present,
+  the base address reported by the hardware GCR_GIC_BASE will be used.
+- mti,reserved-cpu-vectors : Specifies the list of CPU interrupt vectors
+  to which the GIC may not route interrupts.  Valid values are 2 - 7.
+  This property is ignored if the CPU is started in EIC mode.
+
+Required properties for timer sub-node:
+- compatible : Should be "mti,gic-timer".
+- interrupts : Interrupt for the GIC local timer.
+- clock-frequency : Clock frequency at which the GIC timers operate.
+
+Example:
+
+	gic: interrupt-controller@1bdc0000 {
+		compatible = "mti,gic";
+		reg = <0x1bdc0000 0x20000>;
+
+		interrupt-controller;
+		#interrupt-cells = <3>;
+
+		mti,reserved-cpu-vectors = <7>;
+
+		timer {
+			compatible = "mti,gic-timer";
+			interrupts = <GIC_LOCAL 1 IRQ_TYPE_NONE>;
+			clock-frequency = <50000000>;
+		};
+	};
+
+	uart@18101400 {
+		...
+		interrupt-parent = <&gic>;
+		interrupts = <GIC_SHARED 24 IRQ_TYPE_LEVEL_HIGH>;
+		...
+	};

Documentation/devicetree/bindings/mips/brcm/bcm3384-intc.txt

+* Interrupt Controller
+
+Properties:
+- compatible: "brcm,bcm3384-intc"
+
+  Compatibility with BCM3384 and possibly other BCM33xx/BCM63xx SoCs.
+
+- reg: Address/length pairs for each mask/status register set.  Length must
+  be 8.  If multiple register sets are specified, the first set will
+  handle IRQ offsets 0..31, the second set 32..63, and so on.
+
+- interrupt-controller: This is an interrupt controller.
+
+- #interrupt-cells: Must be <1>.  Just a simple IRQ offset; no level/edge
+  or polarity configuration is possible with this controller.
+
+- interrupt-parent: This controller is cascaded from a MIPS CPU HW IRQ, or
+  from another INTC.
+
+- interrupts: The IRQ on the parent controller.
+
+Example:
+	periph_intc: periph_intc@14e00038 {
+		compatible = "brcm,bcm3384-intc";
+
+		/*
+		 * IRQs 0..31:  mask reg 0x14e00038, status reg 0x14e0003c
+		 * IRQs 32..63: mask reg 0x14e00340, status reg 0x14e00344
+		 */
+		reg = <0x14e00038 0x8 0x14e00340 0x8>;
+
+		interrupt-controller;
+		#interrupt-cells = <1>;
+
+		interrupt-parent = <&cpu_intc>;
+		interrupts = <4>;
+	};

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

+* Broadcom MIPS (BMIPS) CPUs
+
+Required properties:
+- compatible: "brcm,bmips3300", "brcm,bmips4350", "brcm,bmips4380",
+  "brcm,bmips5000"
+
+- mips-hpt-frequency: This is common to all CPUs in the system so it lives
+  under the "cpus" node.

Documentation/devicetree/bindings/mips/brcm/cm-dsl.txt

+* Broadcom cable/DSL platforms
+
+SoCs:
+
+Required properties:
+- compatible: "brcm,bcm3384", "brcm,bcm33843"
+
+Boards:
+
+Required properties:
+- compatible: "brcm,bcm93384wvg"

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

+* Broadcom USB controllers
+
+Required properties:
+- compatible: "brcm,bcm3384-ohci", "brcm,bcm3384-ehci"
+
+  These currently use the generic-ohci and generic-ehci drivers.  On some
+  systems, special handling may be needed in the following cases:
+
+  - Restoring state after systemwide power save modes
+  - Sharing PHYs with the USBD (UDC) hardware
+  - Figuring out which controllers are disabled on ASIC bondout variants

Documentation/devicetree/bindings/mips/cpu_irq.txt

 MIPS CPU interrupt controller
 
-On MIPS the mips_cpu_intc_init() helper can be used to initialize the 8 CPU
+On MIPS the mips_cpu_irq_of_init() helper can be used to initialize the 8 CPU
 IRQs from a devicetree file and create a irq_domain for IRQ controller.
 
 With the irq_domain in place we can describe how the 8 IRQs are wired to the
@@ -36,7 +36,7 @@ Example devicetree:
 
 Example platform irq.c:
 static struct of_device_id __initdata of_irq_ids[] = {
-	{ .compatible = "mti,cpu-interrupt-controller", .data = mips_cpu_intc_init },
+	{ .compatible = "mti,cpu-interrupt-controller", .data = mips_cpu_irq_of_init },
 	{ .compatible = "ralink,rt2880-intc", .data = intc_of_init },
 	{},
 };

Documentation/devicetree/bindings/vendor-prefixes.txt

@@ -101,6 +101,7 @@ mitsubishi	Mitsubishi Electric Corporation
 mosaixtech	Mosaix Technologies, Inc.
 moxa	Moxa
 mpl	MPL AG
+mti	Imagination Technologies Ltd. (formerly MIPS Technologies Inc.)
 mundoreader	Mundo Reader S.L.
 murata	Murata Manufacturing Co., Ltd.
 mxicy	Macronix International Co., Ltd.

MAINTAINERS

@@ -2085,6 +2085,14 @@ T:	git git://git.kernel.org/pub/scm/linux/kernel/git/rpi/linux-rpi.git
 S:	Maintained
 N:	bcm2835
 
+BROADCOM BCM33XX MIPS ARCHITECTURE
+M:	Kevin Cernekee <cernekee@gmail.com>
+L:	linux-mips@linux-mips.org
+S:	Maintained
+F:	arch/mips/bcm3384/*
+F:	arch/mips/include/asm/mach-bcm3384/*
+F:	arch/mips/kernel/*bmips*
+
 BROADCOM BCM5301X ARM ARCHITECTURE
 M:	Hauke Mehrtens <hauke@hauke-m.de>
 L:	linux-arm-kernel@lists.infradead.org
@@ -2101,6 +2109,12 @@ S:	Maintained
 F:	arch/arm/mach-bcm/bcm63xx.c
 F:	arch/arm/include/debug/bcm63xx.S
 
+BROADCOM BCM63XX/BCM33XX UDC DRIVER
+M:	Kevin Cernekee <cernekee@gmail.com>
+L:	linux-usb@vger.kernel.org
+S:	Maintained
+F:	drivers/usb/gadget/udc/bcm63xx_udc.*
+
 BROADCOM BCM7XXX ARM ARCHITECTURE
 M:	Marc Carino <marc.ceeeee@gmail.com>
 M:	Brian Norris <computersforpeace@gmail.com>
@@ -2112,6 +2126,18 @@ F:	arch/arm/mach-bcm/*brcmstb*
 F:	arch/arm/boot/dts/bcm7*.dts*
 F:	drivers/bus/brcmstb_gisb.c
 
+BROADCOM BMIPS MIPS ARCHITECTURE
+M:	Kevin Cernekee <cernekee@gmail.com>
+M:	Florian Fainelli <f.fainelli@gmail.com>
+L:	linux-mips@linux-mips.org
+S:	Maintained
+F:	arch/mips/bmips/*
+F:	arch/mips/include/asm/mach-bmips/*
+F:	arch/mips/kernel/*bmips*
+F:	arch/mips/boot/dts/bcm*.dts*
+F:	drivers/irqchip/irq-bcm7*
+F:	drivers/irqchip/irq-brcmstb*
+
 BROADCOM TG3 GIGABIT ETHERNET DRIVER
 M:	Prashant Sreedharan <prashant@broadcom.com>
 M:	Michael Chan <mchan@broadcom.com>

arch/mips/Kbuild.platforms

@@ -2,7 +2,9 @@
 
 platforms += alchemy
 platforms += ar7
+platforms += ath25
 platforms += ath79
+platforms += bcm3384
 platforms += bcm47xx
 platforms += bcm63xx
 platforms += cavium-octeon

arch/mips/Kconfig

@@ -53,6 +53,7 @@ config MIPS
 	select HAVE_CC_STACKPROTECTOR
 	select CPU_PM if CPU_IDLE
 	select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
+	select ARCH_BINFMT_ELF_STATE
 
 menu "Machine selection"
 
@@ -62,7 +63,7 @@ choice
 
 config MIPS_ALCHEMY
 	bool "Alchemy processor based machines"
-	select 64BIT_PHYS_ADDR
+	select ARCH_PHYS_ADDR_T_64BIT
 	select CEVT_R4K
 	select CSRC_R4K
 	select IRQ_CPU
@@ -96,6 +97,20 @@ config AR7
 	  Support for the Texas Instruments AR7 System-on-a-Chip
 	  family: TNETD7100, 7200 and 7300.
 
+config ATH25
+	bool "Atheros AR231x/AR531x SoC support"
+	select CEVT_R4K
+	select CSRC_R4K
+	select DMA_NONCOHERENT
+	select IRQ_CPU
+	select IRQ_DOMAIN
+	select SYS_HAS_CPU_MIPS32_R1
+	select SYS_SUPPORTS_BIG_ENDIAN
+	select SYS_SUPPORTS_32BIT_KERNEL
+	select SYS_HAS_EARLY_PRINTK
+	help
+	  Support for Atheros AR231x and Atheros AR531x based boards
+
 config ATH79
 	bool "Atheros AR71XX/AR724X/AR913X based boards"
 	select ARCH_REQUIRE_GPIOLIB
@@ -115,6 +130,32 @@ config ATH79
 	help
 	  Support for the Atheros AR71XX/AR724X/AR913X SoCs.
 
+config BCM3384
+	bool "Broadcom BCM3384 based boards"
+	select BOOT_RAW
+	select NO_EXCEPT_FILL
+	select USE_OF
+	select CEVT_R4K
+	select CSRC_R4K
+	select SYNC_R4K
+	select COMMON_CLK
+	select DMA_NONCOHERENT
+	select IRQ_CPU
+	select SYS_SUPPORTS_32BIT_KERNEL
+	select SYS_SUPPORTS_BIG_ENDIAN
+	select SYS_SUPPORTS_HIGHMEM
+	select SYS_HAS_CPU_BMIPS5000
+	select SWAP_IO_SPACE
+	select USB_EHCI_BIG_ENDIAN_DESC
+	select USB_EHCI_BIG_ENDIAN_MMIO
+	select USB_OHCI_BIG_ENDIAN_DESC
+	select USB_OHCI_BIG_ENDIAN_MMIO
+	help
+	  Support for BCM3384 based boards.  BCM3384/BCM33843 is a cable modem
+	  chipset with a Linux application processor that is often used to
+	  provide Samba services, a CUPS print server, and/or advanced routing
+	  features.
+
 config BCM47XX
 	bool "Broadcom BCM47XX based boards"
 	select ARCH_WANT_OPTIONAL_GPIOLIB
@@ -269,6 +310,8 @@ config LANTIQ
 	select USE_OF
 	select PINCTRL
 	select PINCTRL_LANTIQ
+	select ARCH_HAS_RESET_CONTROLLER
+	select RESET_CONTROLLER
 
 config LASAT
 	bool "LASAT Networks platforms"
@@ -315,17 +358,18 @@ config MIPS_MALTA
 	select BOOT_RAW
 	select CEVT_R4K
 	select CSRC_R4K
-	select CSRC_GIC
+	select CLKSRC_MIPS_GIC
 	select DMA_MAYBE_COHERENT
 	select GENERIC_ISA_DMA
 	select HAVE_PCSPKR_PLATFORM
 	select IRQ_CPU
-	select IRQ_GIC
+	select MIPS_GIC
 	select HW_HAS_PCI
 	select I8253
 	select I8259
 	select MIPS_BONITO64
 	select MIPS_CPU_SCACHE
+	select MIPS_L1_CACHE_SHIFT_6
 	select PCI_GT64XXX_PCI0
 	select MIPS_MSC
 	select SWAP_IO_SPACE
@@ -340,6 +384,7 @@ config MIPS_MALTA
 	select SYS_SUPPORTS_64BIT_KERNEL
 	select SYS_SUPPORTS_BIG_ENDIAN
 	select SYS_SUPPORTS_LITTLE_ENDIAN
+	select SYS_SUPPORTS_MICROMIPS
 	select SYS_SUPPORTS_MIPS_CMP
 	select SYS_SUPPORTS_MIPS_CPS
 	select SYS_SUPPORTS_MIPS16
@@ -357,12 +402,12 @@ config MIPS_SEAD3
 	select BUILTIN_DTB
 	select CEVT_R4K
 	select CSRC_R4K
-	select CSRC_GIC
+	select CLKSRC_MIPS_GIC
 	select CPU_MIPSR2_IRQ_VI
 	select CPU_MIPSR2_IRQ_EI
 	select DMA_NONCOHERENT
 	select IRQ_CPU
-	select IRQ_GIC
+	select MIPS_GIC
 	select LIBFDT
 	select MIPS_MSC
 	select SYS_HAS_CPU_MIPS32_R1
@@ -726,7 +771,7 @@ config MIKROTIK_RB532
 config CAVIUM_OCTEON_SOC
 	bool "Cavium Networks Octeon SoC based boards"
 	select CEVT_R4K
-	select 64BIT_PHYS_ADDR
+	select ARCH_PHYS_ADDR_T_64BIT
 	select DMA_COHERENT
 	select SYS_SUPPORTS_64BIT_KERNEL
 	select SYS_SUPPORTS_BIG_ENDIAN
@@ -768,7 +813,7 @@ config NLM_XLR_BOARD
 	select SWAP_IO_SPACE
 	select SYS_SUPPORTS_32BIT_KERNEL
 	select SYS_SUPPORTS_64BIT_KERNEL
-	select 64BIT_PHYS_ADDR
+	select ARCH_PHYS_ADDR_T_64BIT
 	select SYS_SUPPORTS_BIG_ENDIAN
 	select SYS_SUPPORTS_HIGHMEM
 	select DMA_COHERENT
@@ -794,7 +839,7 @@ config NLM_XLP_BOARD
 	select HW_HAS_PCI
 	select SYS_SUPPORTS_32BIT_KERNEL
 	select SYS_SUPPORTS_64BIT_KERNEL
-	select 64BIT_PHYS_ADDR
+	select ARCH_PHYS_ADDR_T_64BIT
 	select SYS_SUPPORTS_BIG_ENDIAN
 	select SYS_SUPPORTS_LITTLE_ENDIAN
 	select SYS_SUPPORTS_HIGHMEM
@@ -835,6 +880,7 @@ config MIPS_PARAVIRT
 endchoice
 
 source "arch/mips/alchemy/Kconfig"
+source "arch/mips/ath25/Kconfig"
 source "arch/mips/ath79/Kconfig"
 source "arch/mips/bcm47xx/Kconfig"
 source "arch/mips/bcm63xx/Kconfig"
@@ -907,10 +953,6 @@ config CEVT_GT641XX
 config CEVT_R4K
 	bool
 
-config CEVT_GIC
-	select MIPS_CM
-	bool
-
 config CEVT_SB1250
 	bool
 
@@ -926,10 +968,6 @@ config CSRC_IOASIC
 config CSRC_R4K
 	bool
 
-config CSRC_GIC
-	select MIPS_CM
-	bool
-
 config CSRC_SB1250
 	bool
 
@@ -941,7 +979,7 @@ config FW_CFE
 	bool
 
 config ARCH_DMA_ADDR_T_64BIT
-	def_bool (HIGHMEM && 64BIT_PHYS_ADDR) || 64BIT
+	def_bool (HIGHMEM && ARCH_PHYS_ADDR_T_64BIT) || 64BIT
 
 config DMA_MAYBE_COHERENT
 	select DMA_NONCOHERENT
@@ -975,6 +1013,7 @@ config SYS_SUPPORTS_HOTPLUG_CPU
 
 config I8259
 	bool
+	select IRQ_DOMAIN
 
 config MIPS_BONITO64
 	bool
@@ -1055,6 +1094,7 @@ config MIPS_HUGE_TLB_SUPPORT
 
 config IRQ_CPU
 	bool
+	select IRQ_DOMAIN
 
 config IRQ_CPU_RM7K
 	bool
@@ -1071,10 +1111,6 @@ config IRQ_TXX9
 config IRQ_GT641XX
 	bool
 
-config IRQ_GIC
-	select MIPS_CM
-	bool
-
 config PCI_GT64XXX_PCI0
 	bool
 
@@ -1574,6 +1610,7 @@ config CPU_LOONGSON1
 	select CPU_HAS_PREFETCH
 	select CPU_SUPPORTS_32BIT_KERNEL
 	select CPU_SUPPORTS_HIGHMEM
+	select CPU_SUPPORTS_CPUFREQ
 
 config CPU_BMIPS32_3300
 	select SMP_UP if SMP
@@ -1586,12 +1623,14 @@ config CPU_BMIPS4350
 
 config CPU_BMIPS4380
 	bool
+	select MIPS_L1_CACHE_SHIFT_6
 	select SYS_SUPPORTS_SMP
 	select SYS_SUPPORTS_HOTPLUG_CPU
 
 config CPU_BMIPS5000
 	bool
 	select MIPS_CPU_SCACHE
+	select MIPS_L1_CACHE_SHIFT_7
 	select SYS_SUPPORTS_SMP
 	select SYS_SUPPORTS_HOTPLUG_CPU
 
@@ -1886,15 +1925,6 @@ config FORCE_MAX_ZONEORDER
 	  The page size is not necessarily 4KB.  Keep this in mind
 	  when choosing a value for this option.
 
-config CEVT_GIC
-	bool "Use GIC global counter for clock events"
-	depends on IRQ_GIC && !MIPS_SEAD3
-	help
-	  Use the GIC global counter for the clock events. The R4K clock
-	  event driver is always present, so if the platform ends up not
-	  detecting a GIC, it will fall back to the R4K timer for the
-	  generation of clock events.
-
 config BOARD_SCACHE
 	bool
 
@@ -1908,7 +1938,6 @@ config IP22_CPU_SCACHE
 config MIPS_CPU_SCACHE
 	bool
 	select BOARD_SCACHE
-	select MIPS_L1_CACHE_SHIFT_6
 
 config R5000_CPU_SCACHE
 	bool
@@ -2095,11 +2124,8 @@ config SB1_PASS_2_1_WORKAROUNDS
 	default y
 
 
-config 64BIT_PHYS_ADDR
-	bool
-
 config ARCH_PHYS_ADDR_T_64BIT
-       def_bool 64BIT_PHYS_ADDR
+       bool
 
 choice
 	prompt "SmartMIPS or microMIPS ASE support"
@@ -2122,7 +2148,7 @@ config CPU_HAS_SMARTMIPS
 	  here.
 
 config CPU_MICROMIPS
-	depends on SYS_SUPPORTS_MICROMIPS
+	depends on 32BIT && SYS_SUPPORTS_MICROMIPS
 	bool "microMIPS"
 	help
 	  When this option is enabled the kernel will be built using the

arch/mips/Kconfig.debug

@@ -122,4 +122,17 @@ config SPINLOCK_TEST
 	help
 	  Add several files to the debugfs to test spinlock speed.
 
+config FP32XX_HYBRID_FPRS
+	bool "Run FP32 & FPXX code with hybrid FPRs"
+	depends on MIPS_O32_FP64_SUPPORT
+	help
+	  The hybrid FPR scheme is normally used only when a program needs to
+	  execute a mix of FP32 & FP64A code, since the trapping & emulation
+	  that it entails is expensive. When enabled, this option will lead
+	  to the kernel running programs which use the FP32 & FPXX FP ABIs
+	  using the hybrid FPR scheme, which can be useful for debugging
+	  purposes.
+
+	  If unsure, say N.
+
 endmenu

arch/mips/Makefile

@@ -380,6 +380,7 @@ define archhelp
 	echo '  vmlinux.ecoff        - ECOFF boot image'
 	echo '  vmlinux.bin          - Raw binary boot image'
 	echo '  vmlinux.srec         - SREC boot image'
+	echo '  vmlinux.32           - 64-bit boot image wrapped in 32bits (IP22/IP32)'
 	echo '  vmlinuz              - Compressed boot(zboot) image'
 	echo '  vmlinuz.ecoff        - ECOFF zboot image'
 	echo '  vmlinuz.bin          - Raw binary zboot image'

arch/mips/alchemy/common/clock.c

@@ -37,7 +37,6 @@
 #include <linux/io.h>
 #include <linux/clk-provider.h>
 #include <linux/clkdev.h>
-#include <linux/clk-private.h>
 #include <linux/slab.h>
 #include <linux/spinlock.h>
 #include <linux/types.h>
@@ -397,10 +396,10 @@ static long alchemy_clk_fgcs_detr(struct clk_hw *hw, unsigned long rate,
 			break;
 
 		/* if this parent is currently unused, remember it.
-		 * XXX: I know it's a layering violation, but it works
-		 * so well.. (if (!clk_has_active_children(pc)) )
+		 * XXX: we would actually want clk_has_active_children()
+		 * but this is a good-enough approximation for now.
 		 */
-		if (pc->prepare_count == 0) {
+		if (!__clk_is_prepared(pc)) {
 			if (!free)
 				free = pc;
 		}

arch/mips/alchemy/common/setup.c

@@ -70,9 +70,9 @@ void __init plat_mem_setup(void)
 	iomem_resource.end = IOMEM_RESOURCE_END;
 }
 
-#if defined(CONFIG_64BIT_PHYS_ADDR) && defined(CONFIG_PCI)
+#if defined(CONFIG_PHYS_ADDR_T_64BIT) && defined(CONFIG_PCI)
 /* This routine should be valid for all Au1x based boards */
-phys_t __fixup_bigphys_addr(phys_t phys_addr, phys_t size)
+phys_addr_t __fixup_bigphys_addr(phys_addr_t phys_addr, phys_addr_t size)
 {
 	unsigned long start = ALCHEMY_PCI_MEMWIN_START;
 	unsigned long end = ALCHEMY_PCI_MEMWIN_END;
@@ -83,7 +83,7 @@ phys_t __fixup_bigphys_addr(phys_t phys_addr, phys_t size)
 
 	/* Check for PCI memory window */
 	if (phys_addr >= start && (phys_addr + size - 1) <= end)
-		return (phys_t)(AU1500_PCI_MEM_PHYS_ADDR + phys_addr);
+		return (phys_addr_t)(AU1500_PCI_MEM_PHYS_ADDR + phys_addr);
 
 	/* default nop */
 	return phys_addr;

arch/mips/ar7/platform.c

@@ -311,8 +311,7 @@ static void __init cpmac_get_mac(int instance, unsigned char *dev_addr)
 					&dev_addr[0], &dev_addr[1],
 					&dev_addr[2], &dev_addr[3],
 					&dev_addr[4], &dev_addr[5]) != 6) {
-			pr_warning("cannot parse mac address, "
-					"using random address\n");
+			pr_warn("cannot parse mac address, using random address\n");
 			eth_random_addr(dev_addr);
 		}
 	} else
@@ -665,7 +664,7 @@ static int __init ar7_register_devices(void)
 
 	res = platform_device_register(&physmap_flash);
 	if (res)
-		pr_warning("unable to register physmap-flash: %d\n", res);
+		pr_warn("unable to register physmap-flash: %d\n", res);
 
 	if (ar7_is_titan())
 		titan_fixup_devices();
@@ -673,13 +672,13 @@ static int __init ar7_register_devices(void)
 	ar7_device_disable(vlynq_low_data.reset_bit);
 	res = platform_device_register(&vlynq_low);
 	if (res)
-		pr_warning("unable to register vlynq-low: %d\n", res);
+		pr_warn("unable to register vlynq-low: %d\n", res);
 
 	if (ar7_has_high_vlynq()) {
 		ar7_device_disable(vlynq_high_data.reset_bit);
 		res = platform_device_register(&vlynq_high);
 		if (res)
-			pr_warning("unable to register vlynq-high: %d\n", res);
+			pr_warn("unable to register vlynq-high: %d\n", res);
 	}
 
 	if (ar7_has_high_cpmac()) {
@@ -689,9 +688,10 @@ static int __init ar7_register_devices(void)
 
 			res = platform_device_register(&cpmac_high);
 			if (res)
-				pr_warning("unable to register cpmac-high: %d\n", res);
+				pr_warn("unable to register cpmac-high: %d\n",
+					res);
 		} else
-			pr_warning("unable to add cpmac-high phy: %d\n", res);
+			pr_warn("unable to add cpmac-high phy: %d\n", res);
 	} else
 		cpmac_low_data.phy_mask = 0xffffffff;
 
@@ -700,18 +700,18 @@ static int __init ar7_register_devices(void)
 		cpmac_get_mac(0, cpmac_low_data.dev_addr);
 		res = platform_device_register(&cpmac_low);
 		if (res)
-			pr_warning("unable to register cpmac-low: %d\n", res);
+			pr_warn("unable to register cpmac-low: %d\n", res);
 	} else
-		pr_warning("unable to add cpmac-low phy: %d\n", res);
+		pr_warn("unable to add cpmac-low phy: %d\n", res);
 
 	detect_leds();
 	res = platform_device_register(&ar7_gpio_leds);
 	if (res)
-		pr_warning("unable to register leds: %d\n", res);
+		pr_warn("unable to register leds: %d\n", res);
 
 	res = platform_device_register(&ar7_udc);
 	if (res)
-		pr_warning("unable to register usb slave: %d\n", res);
+		pr_warn("unable to register usb slave: %d\n", res);
 
 	/* Register watchdog only if enabled in hardware */
 	bootcr = ioremap_nocache(AR7_REGS_DCL, 4);
@@ -726,7 +726,7 @@ static int __init ar7_register_devices(void)
 		ar7_wdt_res.end = ar7_wdt_res.start + 0x20;
 		res = platform_device_register(&ar7_wdt);
 		if (res)
-			pr_warning("unable to register watchdog: %d\n", res);
+			pr_warn("unable to register watchdog: %d\n", res);
 	}
 
 	return 0;

arch/mips/ath25/Kconfig

+config SOC_AR5312
+	bool "Atheros AR5312/AR2312+ SoC support"
+	depends on ATH25
+	default y
+
+config SOC_AR2315
+	bool "Atheros AR2315+ SoC support"
+	depends on ATH25
+	default y
+
+config PCI_AR2315
+	bool "Atheros AR2315 PCI controller support"
+	depends on SOC_AR2315
+	select HW_HAS_PCI
+	select PCI
+	default y

arch/mips/ath25/Makefile

+#
+# This file is subject to the terms and conditions of the GNU General Public
+# License.  See the file "COPYING" in the main directory of this archive
+# for more details.
+#
+# Copyright (C) 2006 FON Technology, SL.
+# Copyright (C) 2006 Imre Kaloz <kaloz@openwrt.org>
+# Copyright (C) 2006-2009 Felix Fietkau <nbd@openwrt.org>
+#
+
+obj-y += board.o prom.o devices.o
+
+obj-$(CONFIG_EARLY_PRINTK) += early_printk.o
+
+obj-$(CONFIG_SOC_AR5312) += ar5312.o
+obj-$(CONFIG_SOC_AR2315) += ar2315.o

arch/mips/ath25/Platform

+#
+# Atheros AR531X/AR231X WiSoC
+#
+platform-$(CONFIG_ATH25)	+= ath25/
+cflags-$(CONFIG_ATH25)		+= -I$(srctree)/arch/mips/include/asm/mach-ath25
+load-$(CONFIG_ATH25)		+= 0xffffffff80041000

arch/mips/ath25/ar2315.c

+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2003 Atheros Communications, Inc.,  All Rights Reserved.
+ * Copyright (C) 2006 FON Technology, SL.
+ * Copyright (C) 2006 Imre Kaloz <kaloz@openwrt.org>
+ * Copyright (C) 2006 Felix Fietkau <nbd@openwrt.org>
+ * Copyright (C) 2012 Alexandros C. Couloumbis <alex@ozo.com>
+ */
+
+/*
+ * Platform devices for Atheros AR2315 SoCs
+ */
+
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/bitops.h>
+#include <linux/irqdomain.h>
+#include <linux/interrupt.h>
+#include <linux/platform_device.h>
+#include <linux/reboot.h>
+#include <asm/bootinfo.h>
+#include <asm/reboot.h>
+#include <asm/time.h>
+
+#include <ath25_platform.h>
+
+#include "devices.h"
+#include "ar2315.h"
+#include "ar2315_regs.h"
+
+static void __iomem *ar2315_rst_base;
+static struct irq_domain *ar2315_misc_irq_domain;
+
+static inline u32 ar2315_rst_reg_read(u32 reg)
+{
+	return __raw_readl(ar2315_rst_base + reg);
+}
+
+static inline void ar2315_rst_reg_write(u32 reg, u32 val)
+{
+	__raw_writel(val, ar2315_rst_base + reg);
+}
+
+static inline void ar2315_rst_reg_mask(u32 reg, u32 mask, u32 val)
+{
+	u32 ret = ar2315_rst_reg_read(reg);
+
+	ret &= ~mask;
+	ret |= val;
+	ar2315_rst_reg_write(reg, ret);
+}
+
+static irqreturn_t ar2315_ahb_err_handler(int cpl, void *dev_id)
+{
+	ar2315_rst_reg_write(AR2315_AHB_ERR0, AR2315_AHB_ERROR_DET);
+	ar2315_rst_reg_read(AR2315_AHB_ERR1);
+
+	pr_emerg("AHB fatal error\n");
+	machine_restart("AHB error"); /* Catastrophic failure */
+
+	return IRQ_HANDLED;
+}
+
+static struct irqaction ar2315_ahb_err_interrupt  = {
+	.handler	= ar2315_ahb_err_handler,
+	.name		= "ar2315-ahb-error",
+};
+
+static void ar2315_misc_irq_handler(unsigned irq, struct irq_desc *desc)
+{
+	u32 pending = ar2315_rst_reg_read(AR2315_ISR) &
+		      ar2315_rst_reg_read(AR2315_IMR);
+	unsigned nr, misc_irq = 0;
+
+	if (pending) {
+		struct irq_domain *domain = irq_get_handler_data(irq);
+
+		nr = __ffs(pending);
+		misc_irq = irq_find_mapping(domain, nr);
+	}
+
+	if (misc_irq) {
+		if (nr == AR2315_MISC_IRQ_GPIO)
+			ar2315_rst_reg_write(AR2315_ISR, AR2315_ISR_GPIO);
+		else if (nr == AR2315_MISC_IRQ_WATCHDOG)
+			ar2315_rst_reg_write(AR2315_ISR, AR2315_ISR_WD);
+		generic_handle_irq(misc_irq);
+	} else {
+		spurious_interrupt();
+	}
+}
+
+static void ar2315_misc_irq_unmask(struct irq_data *d)
+{
+	ar2315_rst_reg_mask(AR2315_IMR, 0, BIT(d->hwirq));
+}
+
+static void ar2315_misc_irq_mask(struct irq_data *d)
+{
+	ar2315_rst_reg_mask(AR2315_IMR, BIT(d->hwirq), 0);
+}
+
+static struct irq_chip ar2315_misc_irq_chip = {
+	.name		= "ar2315-misc",
+	.irq_unmask	= ar2315_misc_irq_unmask,
+	.irq_mask	= ar2315_misc_irq_mask,
+};
+
+static int ar2315_misc_irq_map(struct irq_domain *d, unsigned irq,
+			       irq_hw_number_t hw)
+{
+	irq_set_chip_and_handler(irq, &ar2315_misc_irq_chip, handle_level_irq);
+	return 0;
+}
+
+static struct irq_domain_ops ar2315_misc_irq_domain_ops = {
+	.map = ar2315_misc_irq_map,
+};
+
+/*
+ * Called when an interrupt is received, this function
+ * determines exactly which interrupt it was, and it
+ * invokes the appropriate handler.
+ *
+ * Implicitly, we also define interrupt priority by
+ * choosing which to dispatch first.
+ */
+static void ar2315_irq_dispatch(void)
+{
+	u32 pending = read_c0_status() & read_c0_cause();
+
+	if (pending & CAUSEF_IP3)
+		do_IRQ(AR2315_IRQ_WLAN0);
+#ifdef CONFIG_PCI_AR2315
+	else if (pending & CAUSEF_IP5)
+		do_IRQ(AR2315_IRQ_LCBUS_PCI);
+#endif
+	else if (pending & CAUSEF_IP2)
+		do_IRQ(AR2315_IRQ_MISC);
+	else if (pending & CAUSEF_IP7)
+		do_IRQ(ATH25_IRQ_CPU_CLOCK);
+	else
+		spurious_interrupt();
+}
+
+void __init ar2315_arch_init_irq(void)
+{
+	struct irq_domain *domain;
+	unsigned irq;
+
+	ath25_irq_dispatch = ar2315_irq_dispatch;
+
+	domain = irq_domain_add_linear(NULL, AR2315_MISC_IRQ_COUNT,
+				       &ar2315_misc_irq_domain_ops, NULL);
+	if (!domain)
+		panic("Failed to add IRQ domain");
+
+	irq = irq_create_mapping(domain, AR2315_MISC_IRQ_AHB);
+	setup_irq(irq, &ar2315_ahb_err_interrupt);
+
+	irq_set_chained_handler(AR2315_IRQ_MISC, ar2315_misc_irq_handler);
+	irq_set_handler_data(AR2315_IRQ_MISC, domain);
+
+	ar2315_misc_irq_domain = domain;
+}
+
+void __init ar2315_init_devices(void)
+{
+	/* Find board configuration */
+	ath25_find_config(AR2315_SPI_READ_BASE, AR2315_SPI_READ_SIZE);
+
+	ath25_add_wmac(0, AR2315_WLAN0_BASE, AR2315_IRQ_WLAN0);
+}
+
+static void ar2315_restart(char *command)
+{
+	void (*mips_reset_vec)(void) = (void *)0xbfc00000;
+
+	local_irq_disable();
+
+	/* try reset the system via reset control */
+	ar2315_rst_reg_write(AR2315_COLD_RESET, AR2317_RESET_SYSTEM);
+
+	/* Cold reset does not work on the AR2315/6, use the GPIO reset bits
+	 * a workaround. Give it some time to attempt a gpio based hardware
+	 * reset (atheros reference design workaround) */
+
+	/* TODO: implement the GPIO reset workaround */
+
+	/* Some boards (e.g. Senao EOC-2610) don't implement the reset logic
+	 * workaround. Attempt to jump to the mips reset location -
+	 * the boot loader itself might be able to recover the system */
+	mips_reset_vec();
+}
+
+/*
+ * This table is indexed by bits 5..4 of the CLOCKCTL1 register
+ * to determine the predevisor value.
+ */
+static int clockctl1_predivide_table[4] __initdata = { 1, 2, 4, 5 };
+static int pllc_divide_table[5] __initdata = { 2, 3, 4, 6, 3 };
+
+static unsigned __init ar2315_sys_clk(u32 clock_ctl)
+{
+	unsigned int pllc_ctrl, cpu_div;
+	unsigned int pllc_out, refdiv, fdiv, divby2;
+	unsigned int clk_div;
+
+	pllc_ctrl = ar2315_rst_reg_read(AR2315_PLLC_CTL);
+	refdiv = ATH25_REG_MS(pllc_ctrl, AR2315_PLLC_REF_DIV);
+	refdiv = clockctl1_predivide_table[refdiv];
+	fdiv = ATH25_REG_MS(pllc_ctrl, AR2315_PLLC_FDBACK_DIV);
+	divby2 = ATH25_REG_MS(pllc_ctrl, AR2315_PLLC_ADD_FDBACK_DIV) + 1;
+	pllc_out = (40000000 / refdiv) * (2 * divby2) * fdiv;
+
+	/* clkm input selected */
+	switch (clock_ctl & AR2315_CPUCLK_CLK_SEL_M) {
+	case 0:
+	case 1:
+		clk_div = ATH25_REG_MS(pllc_ctrl, AR2315_PLLC_CLKM_DIV);
+		clk_div = pllc_divide_table[clk_div];
+		break;
+	case 2:
+		clk_div = ATH25_REG_MS(pllc_ctrl, AR2315_PLLC_CLKC_DIV);
+		clk_div = pllc_divide_table[clk_div];
+		break;
+	default:
+		pllc_out = 40000000;
+		clk_div = 1;
+		break;
+	}
+
+	cpu_div = ATH25_REG_MS(clock_ctl, AR2315_CPUCLK_CLK_DIV);
+	cpu_div = cpu_div * 2 ?: 1;
+
+	return pllc_out / (clk_div * cpu_div);
+}
+
+static inline unsigned ar2315_cpu_frequency(void)
+{
+	return ar2315_sys_clk(ar2315_rst_reg_read(AR2315_CPUCLK));
+}
+
+static inline unsigned ar2315_apb_frequency(void)
+{
+	return ar2315_sys_clk(ar2315_rst_reg_read(AR2315_AMBACLK));
+}
+
+void __init ar2315_plat_time_init(void)
+{
+	mips_hpt_frequency = ar2315_cpu_frequency() / 2;
+}
+
+void __init ar2315_plat_mem_setup(void)
+{
+	void __iomem *sdram_base;
+	u32 memsize, memcfg;
+	u32 devid;
+	u32 config;
+
+	/* Detect memory size */
+	sdram_base = ioremap_nocache(AR2315_SDRAMCTL_BASE,
+				     AR2315_SDRAMCTL_SIZE);
+	memcfg = __raw_readl(sdram_base + AR2315_MEM_CFG);
+	memsize   = 1 + ATH25_REG_MS(memcfg, AR2315_MEM_CFG_DATA_WIDTH);
+	memsize <<= 1 + ATH25_REG_MS(memcfg, AR2315_MEM_CFG_COL_WIDTH);
+	memsize <<= 1 + ATH25_REG_MS(memcfg, AR2315_MEM_CFG_ROW_WIDTH);
+	memsize <<= 3;
+	add_memory_region(0, memsize, BOOT_MEM_RAM);
+	iounmap(sdram_base);
+
+	ar2315_rst_base = ioremap_nocache(AR2315_RST_BASE, AR2315_RST_SIZE);
+
+	/* Detect the hardware based on the device ID */
+	devid = ar2315_rst_reg_read(AR2315_SREV) & AR2315_REV_CHIP;
+	switch (devid) {
+	case 0x91:	/* Need to check */
+		ath25_soc = ATH25_SOC_AR2318;
+		break;
+	case 0x90:
+		ath25_soc = ATH25_SOC_AR2317;
+		break;
+	case 0x87:
+		ath25_soc = ATH25_SOC_AR2316;
+		break;
+	case 0x86:
+	default:
+		ath25_soc = ATH25_SOC_AR2315;
+		break;
+	}
+	ath25_board.devid = devid;
+
+	/* Clear any lingering AHB errors */
+	config = read_c0_config();
+	write_c0_config(config & ~0x3);
+	ar2315_rst_reg_write(AR2315_AHB_ERR0, AR2315_AHB_ERROR_DET);
+	ar2315_rst_reg_read(AR2315_AHB_ERR1);
+	ar2315_rst_reg_write(AR2315_WDT_CTRL, AR2315_WDT_CTRL_IGNORE);
+
+	_machine_restart = ar2315_restart;
+}
+
+#ifdef CONFIG_PCI_AR2315
+static struct resource ar2315_pci_res[] = {
+	{
+		.name = "ar2315-pci-ctrl",
+		.flags = IORESOURCE_MEM,
+		.start = AR2315_PCI_BASE,
+		.end = AR2315_PCI_BASE + AR2315_PCI_SIZE - 1,
+	},
+	{
+		.name = "ar2315-pci-ext",
+		.flags = IORESOURCE_MEM,
+		.start = AR2315_PCI_EXT_BASE,
+		.end = AR2315_PCI_EXT_BASE + AR2315_PCI_EXT_SIZE - 1,
+	},
+	{
+		.name = "ar2315-pci",
+		.flags = IORESOURCE_IRQ,
+		.start = AR2315_IRQ_LCBUS_PCI,
+		.end = AR2315_IRQ_LCBUS_PCI,
+	},
+};
+#endif
+
+void __init ar2315_arch_init(void)
+{
+	unsigned irq = irq_create_mapping(ar2315_misc_irq_domain,
+					  AR2315_MISC_IRQ_UART0);
+
+	ath25_serial_setup(AR2315_UART0_BASE, irq, ar2315_apb_frequency());
+
+#ifdef CONFIG_PCI_AR2315
+	if (ath25_soc == ATH25_SOC_AR2315) {
+		/* Reset PCI DMA logic */
+		ar2315_rst_reg_mask(AR2315_RESET, 0, AR2315_RESET_PCIDMA);
+		msleep(20);
+		ar2315_rst_reg_mask(AR2315_RESET, AR2315_RESET_PCIDMA, 0);
+		msleep(20);
+
+		/* Configure endians */
+		ar2315_rst_reg_mask(AR2315_ENDIAN_CTL, 0, AR2315_CONFIG_PCIAHB |
+				    AR2315_CONFIG_PCIAHB_BRIDGE);
+
+		/* Configure as PCI host with DMA */
+		ar2315_rst_reg_write(AR2315_PCICLK, AR2315_PCICLK_PLLC_CLKM |
+				  (AR2315_PCICLK_IN_FREQ_DIV_6 <<
+				   AR2315_PCICLK_DIV_S));
+		ar2315_rst_reg_mask(AR2315_AHB_ARB_CTL, 0, AR2315_ARB_PCI);
+		ar2315_rst_reg_mask(AR2315_IF_CTL, AR2315_IF_PCI_CLK_MASK |
+				    AR2315_IF_MASK, AR2315_IF_PCI |
+				    AR2315_IF_PCI_HOST | AR2315_IF_PCI_INTR |
+				    (AR2315_IF_PCI_CLK_OUTPUT_CLK <<
+				     AR2315_IF_PCI_CLK_SHIFT));
+
+		platform_device_register_simple("ar2315-pci", -1,
+						ar2315_pci_res,
+						ARRAY_SIZE(ar2315_pci_res));
+	}
+#endif
+}

arch/mips/ath25/ar2315.h

+#ifndef __AR2315_H
+#define __AR2315_H
+
+#ifdef CONFIG_SOC_AR2315
+
+void ar2315_arch_init_irq(void);
+void ar2315_init_devices(void);
+void ar2315_plat_time_init(void);
+void ar2315_plat_mem_setup(void);
+void ar2315_arch_init(void);
+
+#else
+
+static inline void ar2315_arch_init_irq(void) {}
+static inline void ar2315_init_devices(void) {}
+static inline void ar2315_plat_time_init(void) {}
+static inline void ar2315_plat_mem_setup(void) {}
+static inline void ar2315_arch_init(void) {}
+
+#endif
+
+#endif	/* __AR2315_H */

arch/mips/ath25/ar5312.h

+#ifndef __AR5312_H
+#define __AR5312_H
+
+#ifdef CONFIG_SOC_AR5312
+
+void ar5312_arch_init_irq(void);
+void ar5312_init_devices(void);
+void ar5312_plat_time_init(void);
+void ar5312_plat_mem_setup(void);
+void ar5312_arch_init(void);
+
+#else
+
+static inline void ar5312_arch_init_irq(void) {}
+static inline void ar5312_init_devices(void) {}
+static inline void ar5312_plat_time_init(void) {}
+static inline void ar5312_plat_mem_setup(void) {}
+static inline void ar5312_arch_init(void) {}
+
+#endif
+
+#endif	/* __AR5312_H */

arch/mips/ath25/ar5312_regs.h

+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2003 Atheros Communications, Inc.,  All Rights Reserved.
+ * Copyright (C) 2006 Imre Kaloz <kaloz@openwrt.org>
+ * Copyright (C) 2006 Felix Fietkau <nbd@openwrt.org>
+ */
+
+#ifndef __ASM_MACH_ATH25_AR5312_REGS_H
+#define __ASM_MACH_ATH25_AR5312_REGS_H
+
+/*
+ * IRQs
+ */
+#define AR5312_IRQ_WLAN0	(MIPS_CPU_IRQ_BASE + 2)	/* C0_CAUSE: 0x0400 */
+#define AR5312_IRQ_ENET0	(MIPS_CPU_IRQ_BASE + 3)	/* C0_CAUSE: 0x0800 */
+#define AR5312_IRQ_ENET1	(MIPS_CPU_IRQ_BASE + 4)	/* C0_CAUSE: 0x1000 */
+#define AR5312_IRQ_WLAN1	(MIPS_CPU_IRQ_BASE + 5)	/* C0_CAUSE: 0x2000 */
+#define AR5312_IRQ_MISC		(MIPS_CPU_IRQ_BASE + 6)	/* C0_CAUSE: 0x4000 */
+
+/*
+ * Miscellaneous interrupts, which share IP6.
+ */
+#define AR5312_MISC_IRQ_TIMER		0
+#define AR5312_MISC_IRQ_AHB_PROC	1
+#define AR5312_MISC_IRQ_AHB_DMA		2
+#define AR5312_MISC_IRQ_GPIO		3
+#define AR5312_MISC_IRQ_UART0		4
+#define AR5312_MISC_IRQ_UART0_DMA	5
+#define AR5312_MISC_IRQ_WATCHDOG	6
+#define AR5312_MISC_IRQ_LOCAL		7
+#define AR5312_MISC_IRQ_SPI		8
+#define AR5312_MISC_IRQ_COUNT		9
+
+/*
+ * Address Map
+ *
+ * The AR5312 supports 2 enet MACS, even though many reference boards only
+ * actually use 1 of them (i.e. Only MAC 0 is actually connected to an enet
+ * PHY or PHY switch. The AR2312 supports 1 enet MAC.
+ */
+#define AR5312_WLAN0_BASE		0x18000000
+#define AR5312_ENET0_BASE		0x18100000
+#define AR5312_ENET1_BASE		0x18200000
+#define AR5312_SDRAMCTL_BASE		0x18300000
+#define AR5312_SDRAMCTL_SIZE		0x00000010
+#define AR5312_FLASHCTL_BASE		0x18400000
+#define AR5312_FLASHCTL_SIZE		0x00000010
+#define AR5312_WLAN1_BASE		0x18500000
+#define AR5312_UART0_BASE		0x1c000000	/* UART MMR */
+#define AR5312_GPIO_BASE		0x1c002000
+#define AR5312_GPIO_SIZE		0x00000010
+#define AR5312_RST_BASE			0x1c003000
+#define AR5312_RST_SIZE			0x00000100
+#define AR5312_FLASH_BASE		0x1e000000
+#define AR5312_FLASH_SIZE		0x00800000
+
+/*
+ * Need these defines to determine true number of ethernet MACs
+ */
+#define AR5312_AR5312_REV2	0x0052		/* AR5312 WMAC (AP31) */
+#define AR5312_AR5312_REV7	0x0057		/* AR5312 WMAC (AP30-040) */
+#define AR5312_AR2313_REV8	0x0058		/* AR2313 WMAC (AP43-030) */
+
+/* Reset/Timer Block Address Map */
+#define AR5312_TIMER		0x0000 /* countdown timer */
+#define AR5312_RELOAD		0x0004 /* timer reload value */
+#define AR5312_WDT_CTRL		0x0008 /* watchdog cntrl */
+#define AR5312_WDT_TIMER	0x000c /* watchdog timer */
+#define AR5312_ISR		0x0010 /* Intr Status Reg */
+#define AR5312_IMR		0x0014 /* Intr Mask Reg */
+#define AR5312_RESET		0x0020
+#define AR5312_CLOCKCTL1	0x0064
+#define AR5312_SCRATCH		0x006c
+#define AR5312_PROCADDR		0x0070
+#define AR5312_PROC1		0x0074
+#define AR5312_DMAADDR		0x0078
+#define AR5312_DMA1		0x007c
+#define AR5312_ENABLE		0x0080 /* interface enb */
+#define AR5312_REV		0x0090 /* revision */
+
+/* AR5312_WDT_CTRL register bit field definitions */
+#define AR5312_WDT_CTRL_IGNORE	0x00000000	/* ignore expiration */
+#define AR5312_WDT_CTRL_NMI	0x00000001
+#define AR5312_WDT_CTRL_RESET	0x00000002
+
+/* AR5312_ISR register bit field definitions */
+#define AR5312_ISR_TIMER	0x00000001
+#define AR5312_ISR_AHBPROC	0x00000002
+#define AR5312_ISR_AHBDMA	0x00000004
+#define AR5312_ISR_GPIO		0x00000008
+#define AR5312_ISR_UART0	0x00000010
+#define AR5312_ISR_UART0DMA	0x00000020
+#define AR5312_ISR_WD		0x00000040
+#define AR5312_ISR_LOCAL	0x00000080
+
+/* AR5312_RESET register bit field definitions */
+#define AR5312_RESET_SYSTEM		0x00000001  /* cold reset full system */
+#define AR5312_RESET_PROC		0x00000002  /* cold reset MIPS core */
+#define AR5312_RESET_WLAN0		0x00000004  /* cold reset WLAN MAC/BB */
+#define AR5312_RESET_EPHY0		0x00000008  /* cold reset ENET0 phy */
+#define AR5312_RESET_EPHY1		0x00000010  /* cold reset ENET1 phy */
+#define AR5312_RESET_ENET0		0x00000020  /* cold reset ENET0 MAC */
+#define AR5312_RESET_ENET1		0x00000040  /* cold reset ENET1 MAC */
+#define AR5312_RESET_UART0		0x00000100  /* cold reset UART0 */
+#define AR5312_RESET_WLAN1		0x00000200  /* cold reset WLAN MAC/BB */
+#define AR5312_RESET_APB		0x00000400  /* cold reset APB ar5312 */
+#define AR5312_RESET_WARM_PROC		0x00001000  /* warm reset MIPS core */
+#define AR5312_RESET_WARM_WLAN0_MAC	0x00002000  /* warm reset WLAN0 MAC */
+#define AR5312_RESET_WARM_WLAN0_BB	0x00004000  /* warm reset WLAN0 BB */
+#define AR5312_RESET_NMI		0x00010000  /* send an NMI to the CPU */
+#define AR5312_RESET_WARM_WLAN1_MAC	0x00020000  /* warm reset WLAN1 MAC */
+#define AR5312_RESET_WARM_WLAN1_BB	0x00040000  /* warm reset WLAN1 BB */
+#define AR5312_RESET_LOCAL_BUS		0x00080000  /* reset local bus */
+#define AR5312_RESET_WDOG		0x00100000  /* last reset was a wdt */
+
+#define AR5312_RESET_WMAC0_BITS		(AR5312_RESET_WLAN0 |\
+					 AR5312_RESET_WARM_WLAN0_MAC |\
+					 AR5312_RESET_WARM_WLAN0_BB)
+
+#define AR5312_RESET_WMAC1_BITS		(AR5312_RESET_WLAN1 |\
+					 AR5312_RESET_WARM_WLAN1_MAC |\
+					 AR5312_RESET_WARM_WLAN1_BB)
+
+/* AR5312_CLOCKCTL1 register bit field definitions */
+#define AR5312_CLOCKCTL1_PREDIVIDE_MASK		0x00000030
+#define AR5312_CLOCKCTL1_PREDIVIDE_SHIFT	4
+#define AR5312_CLOCKCTL1_MULTIPLIER_MASK	0x00001f00
+#define AR5312_CLOCKCTL1_MULTIPLIER_SHIFT	8
+#define AR5312_CLOCKCTL1_DOUBLER_MASK		0x00010000
+
+/* Valid for AR5312 and AR2312 */
+#define AR5312_CLOCKCTL1_PREDIVIDE_MASK		0x00000030
+#define AR5312_CLOCKCTL1_PREDIVIDE_SHIFT	4
+#define AR5312_CLOCKCTL1_MULTIPLIER_MASK	0x00001f00
+#define AR5312_CLOCKCTL1_MULTIPLIER_SHIFT	8
+#define AR5312_CLOCKCTL1_DOUBLER_MASK		0x00010000
+
+/* Valid for AR2313 */
+#define AR2313_CLOCKCTL1_PREDIVIDE_MASK		0x00003000
+#define AR2313_CLOCKCTL1_PREDIVIDE_SHIFT	12
+#define AR2313_CLOCKCTL1_MULTIPLIER_MASK	0x001f0000
+#define AR2313_CLOCKCTL1_MULTIPLIER_SHIFT	16
+#define AR2313_CLOCKCTL1_DOUBLER_MASK		0x00000000
+
+/* AR5312_ENABLE register bit field definitions */
+#define AR5312_ENABLE_WLAN0			0x00000001
+#define AR5312_ENABLE_ENET0			0x00000002
+#define AR5312_ENABLE_ENET1			0x00000004
+#define AR5312_ENABLE_UART_AND_WLAN1_PIO	0x00000008/* UART & WLAN1 PIO */
+#define AR5312_ENABLE_WLAN1_DMA			0x00000010/* WLAN1 DMAs */
+#define AR5312_ENABLE_WLAN1		(AR5312_ENABLE_UART_AND_WLAN1_PIO |\
+					 AR5312_ENABLE_WLAN1_DMA)
+
+/* AR5312_REV register bit field definitions */
+#define AR5312_REV_WMAC_MAJ	0x0000f000
+#define AR5312_REV_WMAC_MAJ_S	12
+#define AR5312_REV_WMAC_MIN	0x00000f00
+#define AR5312_REV_WMAC_MIN_S	8
+#define AR5312_REV_MAJ		0x000000f0
+#define AR5312_REV_MAJ_S	4
+#define AR5312_REV_MIN		0x0000000f
+#define AR5312_REV_MIN_S	0
+#define AR5312_REV_CHIP		(AR5312_REV_MAJ|AR5312_REV_MIN)
+
+/* Major revision numbers, bits 7..4 of Revision ID register */
+#define AR5312_REV_MAJ_AR5312		0x4
+#define AR5312_REV_MAJ_AR2313		0x5
+
+/* Minor revision numbers, bits 3..0 of Revision ID register */
+#define AR5312_REV_MIN_DUAL		0x0	/* Dual WLAN version */
+#define AR5312_REV_MIN_SINGLE		0x1	/* Single WLAN version */
+
+/*
+ * ARM Flash Controller -- 3 flash banks with either x8 or x16 devices
+ */
+#define AR5312_FLASHCTL0	0x0000
+#define AR5312_FLASHCTL1	0x0004
+#define AR5312_FLASHCTL2	0x0008
+
+/* AR5312_FLASHCTL register bit field definitions */
+#define AR5312_FLASHCTL_IDCY	0x0000000f	/* Idle cycle turnaround time */
+#define AR5312_FLASHCTL_IDCY_S	0
+#define AR5312_FLASHCTL_WST1	0x000003e0	/* Wait state 1 */
+#define AR5312_FLASHCTL_WST1_S	5
+#define AR5312_FLASHCTL_RBLE	0x00000400	/* Read byte lane enable */
+#define AR5312_FLASHCTL_WST2	0x0000f800	/* Wait state 2 */
+#define AR5312_FLASHCTL_WST2_S	11
+#define AR5312_FLASHCTL_AC	0x00070000	/* Flash addr check (added) */
+#define AR5312_FLASHCTL_AC_S	16
+#define AR5312_FLASHCTL_AC_128K	0x00000000
+#define AR5312_FLASHCTL_AC_256K	0x00010000
+#define AR5312_FLASHCTL_AC_512K	0x00020000
+#define AR5312_FLASHCTL_AC_1M	0x00030000
+#define AR5312_FLASHCTL_AC_2M	0x00040000
+#define AR5312_FLASHCTL_AC_4M	0x00050000
+#define AR5312_FLASHCTL_AC_8M	0x00060000
+#define AR5312_FLASHCTL_AC_RES	0x00070000	/* 16MB is not supported */
+#define AR5312_FLASHCTL_E	0x00080000	/* Flash bank enable (added) */
+#define AR5312_FLASHCTL_BUSERR	0x01000000	/* Bus transfer error flag */
+#define AR5312_FLASHCTL_WPERR	0x02000000	/* Write protect error flag */
+#define AR5312_FLASHCTL_WP	0x04000000	/* Write protect */
+#define AR5312_FLASHCTL_BM	0x08000000	/* Burst mode */
+#define AR5312_FLASHCTL_MW	0x30000000	/* Mem width */
+#define AR5312_FLASHCTL_MW8	0x00000000	/* Mem width x8 */
+#define AR5312_FLASHCTL_MW16	0x10000000	/* Mem width x16 */
+#define AR5312_FLASHCTL_MW32	0x20000000	/* Mem width x32 (not supp) */
+#define AR5312_FLASHCTL_ATNR	0x00000000	/* Access == no retry */
+#define AR5312_FLASHCTL_ATR	0x80000000	/* Access == retry every */
+#define AR5312_FLASHCTL_ATR4	0xc0000000	/* Access == retry every 4 */
+
+/*
+ * ARM SDRAM Controller -- just enough to determine memory size
+ */
+#define AR5312_MEM_CFG1		0x0004
+
+#define AR5312_MEM_CFG1_AC0_M	0x00000700	/* bank 0: SDRAM addr check */
+#define AR5312_MEM_CFG1_AC0_S	8
+#define AR5312_MEM_CFG1_AC1_M	0x00007000	/* bank 1: SDRAM addr check */
+#define AR5312_MEM_CFG1_AC1_S	12
+
+#endif	/* __ASM_MACH_ATH25_AR5312_REGS_H */

arch/mips/ath25/board.c

+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2003 Atheros Communications, Inc.,  All Rights Reserved.
+ * Copyright (C) 2006 FON Technology, SL.
+ * Copyright (C) 2006 Imre Kaloz <kaloz@openwrt.org>
+ * Copyright (C) 2006-2009 Felix Fietkau <nbd@openwrt.org>
+ */
+
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <asm/irq_cpu.h>
+#include <asm/reboot.h>
+#include <asm/bootinfo.h>
+#include <asm/time.h>
+
+#include <ath25_platform.h>
+#include "devices.h"
+#include "ar5312.h"
+#include "ar2315.h"
+
+void (*ath25_irq_dispatch)(void);
+
+static inline bool check_radio_magic(const void __iomem *addr)
+{
+	addr += 0x7a; /* offset for flash magic */
+	return (__raw_readb(addr) == 0x5a) && (__raw_readb(addr + 1) == 0xa5);
+}
+
+static inline bool check_notempty(const void __iomem *addr)
+{
+	return __raw_readl(addr) != 0xffffffff;
+}
+
+static inline bool check_board_data(const void __iomem *addr, bool broken)
+{
+	/* config magic found */
+	if (__raw_readl(addr) == ATH25_BD_MAGIC)
+		return true;
+
+	if (!broken)
+		return false;
+
+	/* broken board data detected, use radio data to find the
+	 * offset, user will fix this */
+
+	if (check_radio_magic(addr + 0x1000))
+		return true;
+	if (check_radio_magic(addr + 0xf8))
+		return true;
+
+	return false;
+}
+
+static const void __iomem * __init find_board_config(const void __iomem *limit,
+						     const bool broken)
+{
+	const void __iomem *addr;
+	const void __iomem *begin = limit - 0x1000;
+	const void __iomem *end = limit - 0x30000;
+
+	for (addr = begin; addr >= end; addr -= 0x1000)
+		if (check_board_data(addr, broken))
+			return addr;
+
+	return NULL;
+}
+
+static const void __iomem * __init find_radio_config(const void __iomem *limit,
+						     const void __iomem *bcfg)
+{
+	const void __iomem *rcfg, *begin, *end;
+
+	/*
+	 * Now find the start of Radio Configuration data, using heuristics:
+	 * Search forward from Board Configuration data by 0x1000 bytes
+	 * at a time until we find non-0xffffffff.
+	 */
+	begin = bcfg + 0x1000;
+	end = limit;
+	for (rcfg = begin; rcfg < end; rcfg += 0x1000)
+		if (check_notempty(rcfg) && check_radio_magic(rcfg))
+			return rcfg;
+
+	/* AR2316 relocates radio config to new location */
+	begin = bcfg + 0xf8;
+	end = limit - 0x1000 + 0xf8;
+	for (rcfg = begin; rcfg < end; rcfg += 0x1000)
+		if (check_notempty(rcfg) && check_radio_magic(rcfg))
+			return rcfg;
+
+	return NULL;
+}
+
+/*
+ * NB: Search region size could be larger than the actual flash size,
+ * but this shouldn't be a problem here, because the flash
+ * will simply be mapped multiple times.
+ */
+int __init ath25_find_config(phys_addr_t base, unsigned long size)
+{
+	const void __iomem *flash_base, *flash_limit;
+	struct ath25_boarddata *config;
+	unsigned int rcfg_size;
+	int broken_boarddata = 0;
+	const void __iomem *bcfg, *rcfg;
+	u8 *board_data;
+	u8 *radio_data;
+	u8 *mac_addr;
+	u32 offset;
+
+	flash_base = ioremap_nocache(base, size);
+	flash_limit = flash_base + size;
+
+	ath25_board.config = NULL;
+	ath25_board.radio = NULL;
+
+	/* Copy the board and radio data to RAM, because accessing the mapped
+	 * memory of the flash directly after booting is not safe */
+
+	/* Try to find valid board and radio data */
+	bcfg = find_board_config(flash_limit, false);
+
+	/* If that fails, try to at least find valid radio data */
+	if (!bcfg) {
+		bcfg = find_board_config(flash_limit, true);
+		broken_boarddata = 1;
+	}
+
+	if (!bcfg) {
+		pr_warn("WARNING: No board configuration data found!\n");
+		goto error;
+	}
+
+	board_data = kzalloc(BOARD_CONFIG_BUFSZ, GFP_KERNEL);
+	ath25_board.config = (struct ath25_boarddata *)board_data;
+	memcpy_fromio(board_data, bcfg, 0x100);
+	if (broken_boarddata) {
+		pr_warn("WARNING: broken board data detected\n");
+		config = ath25_board.config;
+		if (is_zero_ether_addr(config->enet0_mac)) {
+			pr_info("Fixing up empty mac addresses\n");
+			config->reset_config_gpio = 0xffff;
+			config->sys_led_gpio = 0xffff;
+			random_ether_addr(config->wlan0_mac);
+			config->wlan0_mac[0] &= ~0x06;
+			random_ether_addr(config->enet0_mac);
+			random_ether_addr(config->enet1_mac);
+		}
+	}
+
+	/* Radio config starts 0x100 bytes after board config, regardless
+	 * of what the physical layout on the flash chip looks like */
+
+	rcfg = find_radio_config(flash_limit, bcfg);
+	if (!rcfg) {
+		pr_warn("WARNING: Could not find Radio Configuration data\n");
+		goto error;
+	}
+
+	radio_data = board_data + 0x100 + ((rcfg - bcfg) & 0xfff);
+	ath25_board.radio = radio_data;
+	offset = radio_data - board_data;
+	pr_info("Radio config found at offset 0x%x (0x%x)\n", rcfg - bcfg,
+		offset);
+	rcfg_size = BOARD_CONFIG_BUFSZ - offset;
+	memcpy_fromio(radio_data, rcfg, rcfg_size);
+
+	mac_addr = &radio_data[0x1d * 2];
+	if (is_broadcast_ether_addr(mac_addr)) {
+		pr_info("Radio MAC is blank; using board-data\n");
+		ether_addr_copy(mac_addr, ath25_board.config->wlan0_mac);
+	}
+
+	iounmap(flash_base);
+
+	return 0;
+
+error:
+	iounmap(flash_base);
+	return -ENODEV;
+}
+
+static void ath25_halt(void)
+{
+	local_irq_disable();
+	unreachable();
+}
+
+void __init plat_mem_setup(void)
+{
+	_machine_halt = ath25_halt;
+	pm_power_off = ath25_halt;
+
+	if (is_ar5312())
+		ar5312_plat_mem_setup();
+	else
+		ar2315_plat_mem_setup();
+
+	/* Disable data watchpoints */
+	write_c0_watchlo0(0);
+}
+
+asmlinkage void plat_irq_dispatch(void)
+{
+	ath25_irq_dispatch();
+}
+
+void __init plat_time_init(void)
+{
+	if (is_ar5312())
+		ar5312_plat_time_init();
+	else
+		ar2315_plat_time_init();
+}
+
+unsigned int __cpuinit get_c0_compare_int(void)
+{
+	return CP0_LEGACY_COMPARE_IRQ;
+}
+
+void __init arch_init_irq(void)
+{
+	clear_c0_status(ST0_IM);
+	mips_cpu_irq_init();
+
+	/* Initialize interrupt controllers */
+	if (is_ar5312())
+		ar5312_arch_init_irq();
+	else
+		ar2315_arch_init_irq();
+}

arch/mips/ath25/devices.c

+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/serial_8250.h>
+#include <linux/platform_device.h>
+#include <asm/bootinfo.h>
+
+#include <ath25_platform.h>
+#include "devices.h"
+#include "ar5312.h"
+#include "ar2315.h"
+
+struct ar231x_board_config ath25_board;
+enum ath25_soc_type ath25_soc = ATH25_SOC_UNKNOWN;
+
+static struct resource ath25_wmac0_res[] = {
+	{
+		.name = "wmac0_membase",
+		.flags = IORESOURCE_MEM,
+	},
+	{
+		.name = "wmac0_irq",
+		.flags = IORESOURCE_IRQ,
+	}
+};
+
+static struct resource ath25_wmac1_res[] = {
+	{
+		.name = "wmac1_membase",
+		.flags = IORESOURCE_MEM,
+	},
+	{
+		.name = "wmac1_irq",
+		.flags = IORESOURCE_IRQ,
+	}
+};
+
+static struct platform_device ath25_wmac[] = {
+	{
+		.id = 0,
+		.name = "ar231x-wmac",
+		.resource = ath25_wmac0_res,
+		.num_resources = ARRAY_SIZE(ath25_wmac0_res),
+		.dev.platform_data = &ath25_board,
+	},
+	{
+		.id = 1,
+		.name = "ar231x-wmac",
+		.resource = ath25_wmac1_res,
+		.num_resources = ARRAY_SIZE(ath25_wmac1_res),
+		.dev.platform_data = &ath25_board,
+	},
+};
+
+static const char * const soc_type_strings[] = {
+	[ATH25_SOC_AR5312] = "Atheros AR5312",
+	[ATH25_SOC_AR2312] = "Atheros AR2312",
+	[ATH25_SOC_AR2313] = "Atheros AR2313",
+	[ATH25_SOC_AR2315] = "Atheros AR2315",
+	[ATH25_SOC_AR2316] = "Atheros AR2316",
+	[ATH25_SOC_AR2317] = "Atheros AR2317",
+	[ATH25_SOC_AR2318] = "Atheros AR2318",
+	[ATH25_SOC_UNKNOWN] = "Atheros (unknown)",
+};
+
+const char *get_system_type(void)
+{
+	if ((ath25_soc >= ARRAY_SIZE(soc_type_strings)) ||
+	    !soc_type_strings[ath25_soc])
+		return soc_type_strings[ATH25_SOC_UNKNOWN];
+	return soc_type_strings[ath25_soc];
+}
+
+void __init ath25_serial_setup(u32 mapbase, int irq, unsigned int uartclk)
+{
+	struct uart_port s;
+
+	memset(&s, 0, sizeof(s));
+
+	s.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_IOREMAP;
+	s.iotype = UPIO_MEM32;
+	s.irq = irq;
+	s.regshift = 2;
+	s.mapbase = mapbase;
+	s.uartclk = uartclk;
+
+	early_serial_setup(&s);
+}
+
+int __init ath25_add_wmac(int nr, u32 base, int irq)
+{
+	struct resource *res;
+
+	ath25_wmac[nr].dev.platform_data = &ath25_board;
+	res = &ath25_wmac[nr].resource[0];
+	res->start = base;
+	res->end = base + 0x10000 - 1;
+	res++;
+	res->start = irq;
+	res->end = irq;
+	return platform_device_register(&ath25_wmac[nr]);
+}
+
+static int __init ath25_register_devices(void)
+{
+	if (is_ar5312())
+		ar5312_init_devices();
+	else
+		ar2315_init_devices();
+
+	return 0;
+}
+
+device_initcall(ath25_register_devices);
+
+static int __init ath25_arch_init(void)
+{
+	if (is_ar5312())
+		ar5312_arch_init();
+	else
+		ar2315_arch_init();
+
+	return 0;
+}
+
+arch_initcall(ath25_arch_init);

arch/mips/ath25/devices.h

+#ifndef __ATH25_DEVICES_H
+#define __ATH25_DEVICES_H
+
+#include <linux/cpu.h>
+
+#define ATH25_REG_MS(_val, _field)	(((_val) & _field##_M) >> _field##_S)
+
+#define ATH25_IRQ_CPU_CLOCK	(MIPS_CPU_IRQ_BASE + 7)	/* C0_CAUSE: 0x8000 */
+
+enum ath25_soc_type {
+	/* handled by ar5312.c */
+	ATH25_SOC_AR2312,
+	ATH25_SOC_AR2313,
+	ATH25_SOC_AR5312,
+
+	/* handled by ar2315.c */
+	ATH25_SOC_AR2315,
+	ATH25_SOC_AR2316,
+	ATH25_SOC_AR2317,
+	ATH25_SOC_AR2318,
+
+	ATH25_SOC_UNKNOWN
+};
+
+extern enum ath25_soc_type ath25_soc;
+extern struct ar231x_board_config ath25_board;
+extern void (*ath25_irq_dispatch)(void);
+
+int ath25_find_config(phys_addr_t offset, unsigned long size);
+void ath25_serial_setup(u32 mapbase, int irq, unsigned int uartclk);
+int ath25_add_wmac(int nr, u32 base, int irq);
+
+static inline bool is_ar2315(void)
+{
+	return (current_cpu_data.cputype == CPU_4KEC);
+}
+
+static inline bool is_ar5312(void)
+{
+	return !is_ar2315();
+}
+
+#endif

arch/mips/ath25/early_printk.c

+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2010 Gabor Juhos <juhosg@openwrt.org>
+ */
+
+#include <linux/mm.h>
+#include <linux/io.h>
+#include <linux/serial_reg.h>
+
+#include "devices.h"
+#include "ar2315_regs.h"
+#include "ar5312_regs.h"
+
+static inline void prom_uart_wr(void __iomem *base, unsigned reg,
+				unsigned char ch)
+{
+	__raw_writel(ch, base + 4 * reg);
+}
+
+static inline unsigned char prom_uart_rr(void __iomem *base, unsigned reg)
+{
+	return __raw_readl(base + 4 * reg);
+}
+
+void prom_putchar(unsigned char ch)
+{
+	static void __iomem *base;
+
+	if (unlikely(base == NULL)) {
+		if (is_ar2315())
+			base = (void __iomem *)(KSEG1ADDR(AR2315_UART0_BASE));
+		else
+			base = (void __iomem *)(KSEG1ADDR(AR5312_UART0_BASE));
+	}
+
+	while ((prom_uart_rr(base, UART_LSR) & UART_LSR_THRE) == 0)
+		;
+	prom_uart_wr(base, UART_TX, ch);
+	while ((prom_uart_rr(base, UART_LSR) & UART_LSR_THRE) == 0)
+		;
+}

arch/mips/ath25/prom.c

+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright MontaVista Software Inc
+ * Copyright (C) 2003 Atheros Communications, Inc.,  All Rights Reserved.
+ * Copyright (C) 2006 FON Technology, SL.
+ * Copyright (C) 2006 Imre Kaloz <kaloz@openwrt.org>
+ * Copyright (C) 2006 Felix Fietkau <nbd@openwrt.org>
+ */
+
+/*
+ * Prom setup file for AR5312/AR231x SoCs
+ */
+
+#include <linux/init.h>
+#include <asm/bootinfo.h>
+
+void __init prom_init(void)
+{
+}
+
+void __init prom_free_prom_memory(void)
+{
+}

arch/mips/ath79/irq.c

@@ -359,7 +359,6 @@ void __init arch_init_irq(void)
 		BUG();
 	}
 
-	cp0_perfcount_irq = ATH79_MISC_IRQ(5);
 	mips_cpu_irq_init();
 	ath79_misc_irq_init();
 

arch/mips/ath79/prom.c

@@ -13,42 +13,24 @@
 #include <linux/init.h>
 #include <linux/io.h>
 #include <linux/string.h>
+#include <linux/initrd.h>
 
 #include <asm/bootinfo.h>
 #include <asm/addrspace.h>
+#include <asm/fw/fw.h>
 
 #include "common.h"
 
-static inline int is_valid_ram_addr(void *addr)
-{
-	if (((u32) addr > KSEG0) &&
-	    ((u32) addr < (KSEG0 + ATH79_MEM_SIZE_MAX)))
-		return 1;
-
-	if (((u32) addr > KSEG1) &&
-	    ((u32) addr < (KSEG1 + ATH79_MEM_SIZE_MAX)))
-		return 1;
-
-	return 0;
-}
-
-static __init void ath79_prom_init_cmdline(int argc, char **argv)
-{
-	int i;
-
-	if (!is_valid_ram_addr(argv))
-		return;
-
-	for (i = 0; i < argc; i++)
-		if (is_valid_ram_addr(argv[i])) {
-			strlcat(arcs_cmdline, " ", sizeof(arcs_cmdline));
-			strlcat(arcs_cmdline, argv[i], sizeof(arcs_cmdline));
-		}
-}
-
 void __init prom_init(void)
 {
-	ath79_prom_init_cmdline(fw_arg0, (char **)fw_arg1);
+	fw_init_cmdline();
+
+	/* Read the initrd address from the firmware environment */
+	initrd_start = fw_getenvl("initrd_start");
+	if (initrd_start) {
+		initrd_start = KSEG0ADDR(initrd_start);
+		initrd_end = initrd_start + fw_getenvl("initrd_size");
+	}
 }
 
 void __init prom_free_prom_memory(void)

arch/mips/ath79/setup.c

@@ -182,6 +182,11 @@ const char *get_system_type(void)
 	return ath79_sys_type;
 }
 
+int get_c0_perfcount_int(void)
+{
+	return ATH79_MISC_IRQ(5);
+}
+
 unsigned int get_c0_compare_int(void)
 {
 	return CP0_LEGACY_COMPARE_IRQ;

arch/mips/bcm3384/Makefile

+obj-y		+= setup.o irq.o dma.o

arch/mips/bcm3384/Platform

+#
+# Broadcom BCM3384 boards
+#
+platform-$(CONFIG_BCM3384)	+= bcm3384/
+cflags-$(CONFIG_BCM3384)	+=					\
+		-I$(srctree)/arch/mips/include/asm/mach-bcm3384/
+load-$(CONFIG_BCM3384)		:= 0xffffffff80010000

arch/mips/bcm3384/dma.c

+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2014 Kevin Cernekee <cernekee@gmail.com>
+ */
+
+#include <linux/device.h>
+#include <linux/dma-direction.h>
+#include <linux/dma-mapping.h>
+#include <linux/init.h>
+#include <linux/mm.h>
+#include <linux/of.h>
+#include <linux/pci.h>
+#include <linux/types.h>
+#include <dma-coherence.h>
+
+/*
+ * BCM3384 has configurable address translation windows which allow the
+ * peripherals' DMA addresses to be different from the Zephyr-visible
+ * physical addresses.  e.g. usb_dma_addr = zephyr_pa ^ 0x08000000
+ *
+ * If our DT "memory" node has a "dma-xor-mask" property we will enable this
+ * translation using the provided offset.
+ */
+static u32 bcm3384_dma_xor_mask;
+static u32 bcm3384_dma_xor_limit = 0xffffffff;
+
+/*
+ * PCI collapses the memory hole at 0x10000000 - 0x1fffffff.
+ * On systems with a dma-xor-mask, this range is guaranteed to live above
+ * the dma-xor-limit.
+ */
+#define BCM3384_MEM_HOLE_PA	0x10000000
+#define BCM3384_MEM_HOLE_SIZE	0x10000000
+
+static dma_addr_t bcm3384_phys_to_dma(struct device *dev, phys_addr_t pa)
+{
+	if (dev && dev_is_pci(dev) &&
+	    pa >= (BCM3384_MEM_HOLE_PA + BCM3384_MEM_HOLE_SIZE))
+		return pa - BCM3384_MEM_HOLE_SIZE;
+	if (pa <= bcm3384_dma_xor_limit)
+		return pa ^ bcm3384_dma_xor_mask;
+	return pa;
+}
+
+dma_addr_t plat_map_dma_mem(struct device *dev, void *addr, size_t size)
+{
+	return bcm3384_phys_to_dma(dev, virt_to_phys(addr));
+}
+
+dma_addr_t plat_map_dma_mem_page(struct device *dev, struct page *page)
+{
+	return bcm3384_phys_to_dma(dev, page_to_phys(page));
+}
+
+unsigned long plat_dma_addr_to_phys(struct device *dev, dma_addr_t dma_addr)
+{
+	if (dev && dev_is_pci(dev) &&
+	    dma_addr >= BCM3384_MEM_HOLE_PA)
+		return dma_addr + BCM3384_MEM_HOLE_SIZE;
+	if ((dma_addr ^ bcm3384_dma_xor_mask) <= bcm3384_dma_xor_limit)
+		return dma_addr ^ bcm3384_dma_xor_mask;
+	return dma_addr;
+}
+
+static int __init bcm3384_init_dma_xor(void)
+{
+	struct device_node *np = of_find_node_by_type(NULL, "memory");
+
+	if (!np)
+		return 0;
+
+	of_property_read_u32(np, "dma-xor-mask", &bcm3384_dma_xor_mask);
+	of_property_read_u32(np, "dma-xor-limit", &bcm3384_dma_xor_limit);
+
+	of_node_put(np);
+	return 0;
+}
+arch_initcall(bcm3384_init_dma_xor);

arch/mips/bcm3384/irq.c

+/*
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ *
+ * Partially based on arch/mips/ralink/irq.c
+ *
+ * Copyright (C) 2009 Gabor Juhos <juhosg@openwrt.org>
+ * Copyright (C) 2013 John Crispin <blogic@openwrt.org>
+ * Copyright (C) 2014 Kevin Cernekee <cernekee@gmail.com>
+ */
+
+#include <linux/io.h>
+#include <linux/bitops.h>
+#include <linux/of_platform.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
+#include <linux/irqdomain.h>
+#include <linux/interrupt.h>
+#include <linux/slab.h>
+#include <linux/spinlock.h>
+
+#include <asm/bmips.h>
+#include <asm/irq_cpu.h>
+#include <asm/mipsregs.h>
+
+/* INTC register offsets */
+#define INTC_REG_ENABLE		0x00
+#define INTC_REG_STATUS		0x04
+
+#define MAX_WORDS		2
+#define IRQS_PER_WORD		32
+
+struct bcm3384_intc {
+	int			n_words;
+	void __iomem		*reg[MAX_WORDS];
+	u32			enable[MAX_WORDS];
+	spinlock_t		lock;
+};
+
+static void bcm3384_intc_irq_unmask(struct irq_data *d)
+{
+	struct bcm3384_intc *priv = d->domain->host_data;
+	unsigned long flags;
+	int idx = d->hwirq / IRQS_PER_WORD;
+	int bit = d->hwirq % IRQS_PER_WORD;
+
+	spin_lock_irqsave(&priv->lock, flags);
+	priv->enable[idx] |= BIT(bit);
+	__raw_writel(priv->enable[idx], priv->reg[idx] + INTC_REG_ENABLE);
+	spin_unlock_irqrestore(&priv->lock, flags);
+}
+
+static void bcm3384_intc_irq_mask(struct irq_data *d)
+{
+	struct bcm3384_intc *priv = d->domain->host_data;
+	unsigned long flags;
+	int idx = d->hwirq / IRQS_PER_WORD;
+	int bit = d->hwirq % IRQS_PER_WORD;
+
+	spin_lock_irqsave(&priv->lock, flags);
+	priv->enable[idx] &= ~BIT(bit);
+	__raw_writel(priv->enable[idx], priv->reg[idx] + INTC_REG_ENABLE);
+	spin_unlock_irqrestore(&priv->lock, flags);
+}
+
+static struct irq_chip bcm3384_intc_irq_chip = {
+	.name		= "INTC",
+	.irq_unmask	= bcm3384_intc_irq_unmask,
+	.irq_mask	= bcm3384_intc_irq_mask,
+	.irq_mask_ack	= bcm3384_intc_irq_mask,
+};
+
+unsigned int get_c0_compare_int(void)
+{
+	return CP0_LEGACY_COMPARE_IRQ;
+}
+
+static void bcm3384_intc_irq_handler(unsigned int irq, struct irq_desc *desc)
+{
+	struct irq_domain *domain = irq_get_handler_data(irq);
+	struct bcm3384_intc *priv = domain->host_data;
+	unsigned long flags;
+	unsigned int idx;
+
+	for (idx = 0; idx < priv->n_words; idx++) {
+		unsigned long pending;
+		int hwirq;
+
+		spin_lock_irqsave(&priv->lock, flags);
+		pending = __raw_readl(priv->reg[idx] + INTC_REG_STATUS) &
+			  priv->enable[idx];
+		spin_unlock_irqrestore(&priv->lock, flags);
+
+		for_each_set_bit(hwirq, &pending, IRQS_PER_WORD) {
+			generic_handle_irq(irq_find_mapping(domain,
+					   hwirq + idx * IRQS_PER_WORD));
+		}
+	}
+}
+
+asmlinkage void plat_irq_dispatch(void)
+{
+	unsigned long pending =
+		(read_c0_status() & read_c0_cause() & ST0_IM) >> STATUSB_IP0;
+	int bit;
+
+	for_each_set_bit(bit, &pending, 8)
+		do_IRQ(MIPS_CPU_IRQ_BASE + bit);
+}
+
+static int intc_map(struct irq_domain *d, unsigned int irq, irq_hw_number_t hw)
+{
+	irq_set_chip_and_handler(irq, &bcm3384_intc_irq_chip, handle_level_irq);
+	return 0;
+}
+
+static const struct irq_domain_ops irq_domain_ops = {
+	.xlate = irq_domain_xlate_onecell,
+	.map = intc_map,
+};
+
+static int __init ioremap_one_pair(struct bcm3384_intc *priv,
+				   struct device_node *node,
+				   int idx)
+{
+	struct resource res;
+
+	if (of_address_to_resource(node, idx, &res))
+		return 0;
+
+	if (request_mem_region(res.start, resource_size(&res),
+			       res.name) < 0)
+		pr_err("Failed to request INTC register region\n");
+
+	priv->reg[idx] = ioremap_nocache(res.start, resource_size(&res));
+	if (!priv->reg[idx])
+		panic("Failed to ioremap INTC register range");
+
+	/* start up with everything masked before we hook the parent IRQ */
+	__raw_writel(0, priv->reg[idx] + INTC_REG_ENABLE);
+	priv->enable[idx] = 0;
+
+	return IRQS_PER_WORD;
+}
+
+static int __init intc_of_init(struct device_node *node,
+			       struct device_node *parent)
+{
+	struct irq_domain *domain;
+	unsigned int parent_irq, n_irqs = 0;
+	struct bcm3384_intc *priv;
+
+	priv = kzalloc(sizeof(*priv), GFP_KERNEL);
+	if (!priv)
+		panic("Failed to allocate bcm3384_intc struct");
+
+	spin_lock_init(&priv->lock);
+
+	parent_irq = irq_of_parse_and_map(node, 0);
+	if (!parent_irq)
+		panic("Failed to get INTC IRQ");
+
+	n_irqs += ioremap_one_pair(priv, node, 0);
+	n_irqs += ioremap_one_pair(priv, node, 1);
+
+	if (!n_irqs)
+		panic("Failed to map INTC registers");
+
+	priv->n_words = n_irqs / IRQS_PER_WORD;
+	domain = irq_domain_add_linear(node, n_irqs, &irq_domain_ops, priv);
+	if (!domain)
+		panic("Failed to add irqdomain");
+
+	irq_set_chained_handler(parent_irq, bcm3384_intc_irq_handler);
+	irq_set_handler_data(parent_irq, domain);
+
+	return 0;
+}
+
+static struct of_device_id of_irq_ids[] __initdata = {
+	{ .compatible = "mti,cpu-interrupt-controller",
+	  .data = mips_cpu_intc_init },
+	{ .compatible = "brcm,bcm3384-intc",
+	  .data = intc_of_init },
+	{},
+};
+
+void __init arch_init_irq(void)
+{
+	bmips_tp1_irqs = 0;
+	of_irq_init(of_irq_ids);
+}

arch/mips/bcm3384/setup.c

+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2008 Maxime Bizon <mbizon@freebox.fr>
+ * Copyright (C) 2014 Kevin Cernekee <cernekee@gmail.com>
+ */
+
+#include <linux/init.h>
+#include <linux/bootmem.h>
+#include <linux/clk-provider.h>
+#include <linux/ioport.h>
+#include <linux/of.h>
+#include <linux/of_fdt.h>
+#include <linux/of_platform.h>
+#include <linux/smp.h>
+#include <asm/addrspace.h>
+#include <asm/bmips.h>
+#include <asm/bootinfo.h>
+#include <asm/prom.h>
+#include <asm/smp-ops.h>
+#include <asm/time.h>
+
+void __init prom_init(void)
+{
+	register_bmips_smp_ops();
+}
+
+void __init prom_free_prom_memory(void)
+{
+}
+
+const char *get_system_type(void)
+{
+	return "BCM3384";
+}
+
+void __init plat_time_init(void)
+{
+	struct device_node *np;
+	u32 freq;
+
+	np = of_find_node_by_name(NULL, "cpus");
+	if (!np)
+		panic("missing 'cpus' DT node");
+	if (of_property_read_u32(np, "mips-hpt-frequency", &freq) < 0)
+		panic("missing 'mips-hpt-frequency' property");
+	of_node_put(np);
+
+	mips_hpt_frequency = freq;
+}
+
+void __init plat_mem_setup(void)
+{
+	void *dtb = __dtb_start;
+
+	set_io_port_base(0);
+	ioport_resource.start = 0;
+	ioport_resource.end = ~0;
+
+	/* intended to somewhat resemble ARM; see Documentation/arm/Booting */
+	if (fw_arg0 == 0 && fw_arg1 == 0xffffffff)
+		dtb = phys_to_virt(fw_arg2);
+
+	__dt_setup_arch(dtb);
+
+	strlcpy(arcs_cmdline, boot_command_line, COMMAND_LINE_SIZE);
+}
+
+void __init device_tree_init(void)
+{
+	struct device_node *np;
+
+	unflatten_and_copy_device_tree();
+
+	/* Disable SMP boot unless both CPUs are listed in DT and !disabled */
+	np = of_find_node_by_name(NULL, "cpus");
+	if (np && of_get_available_child_count(np) <= 1)
+		bmips_smp_enabled = 0;
+	of_node_put(np);
+}
+
+int __init plat_of_setup(void)
+{
+	return __dt_register_buses("brcm,bcm3384", "simple-bus");
+}
+
+arch_initcall(plat_of_setup);
+
+static int __init plat_dev_init(void)
+{
+	of_clk_init(NULL);
+	return 0;
+}
+
+device_initcall(plat_dev_init);

arch/mips/bcm47xx/bcm47xx_private.h

@@ -6,12 +6,18 @@
 /* prom.c */
 void __init bcm47xx_prom_highmem_init(void);
 
+/* sprom.c */
+void bcm47xx_sprom_register_fallbacks(void);
+
 /* buttons.c */
 int __init bcm47xx_buttons_register(void);
 
 /* leds.c */
 void __init bcm47xx_leds_register(void);
 
+/* setup.c */
+void __init bcm47xx_bus_setup(void);
+
 /* workarounds.c */
 void __init bcm47xx_workarounds(void);
 

arch/mips/bcm47xx/irq.c

@@ -22,6 +22,8 @@
  *  675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
+#include "bcm47xx_private.h"
+
 #include <linux/types.h>
 #include <linux/interrupt.h>
 #include <linux/irq.h>
@@ -65,6 +67,12 @@ DEFINE_HWx_IRQDISPATCH(7)
 
 void __init arch_init_irq(void)
 {
+	/*
+	 * This is the first arch callback after mm_init (we can use kmalloc),
+	 * so let's finish bus initialization now.
+	 */
+	bcm47xx_bus_setup();
+
 #ifdef CONFIG_BCM47XX_BCMA
 	if (bcm47xx_bus_type == BCM47XX_BUS_TYPE_BCMA) {
 		bcma_write32(bcm47xx_bus.bcma.bus.drv_mips.core,

arch/mips/bcm47xx/nvram.c

@@ -13,24 +13,35 @@
 
 #include <linux/types.h>
 #include <linux/module.h>
-#include <linux/ssb/ssb.h>
 #include <linux/kernel.h>
 #include <linux/string.h>
-#include <asm/addrspace.h>
+#include <linux/mtd/mtd.h>
 #include <bcm47xx_nvram.h>
-#include <asm/mach-bcm47xx/bcm47xx.h>
+
+#define NVRAM_MAGIC		0x48534C46	/* 'FLSH' */
+#define NVRAM_SPACE		0x8000
+
+#define FLASH_MIN		0x00020000	/* Minimum flash size */
+
+struct nvram_header {
+	u32 magic;
+	u32 len;
+	u32 crc_ver_init;	/* 0:7 crc, 8:15 ver, 16:31 sdram_init */
+	u32 config_refresh;	/* 0:15 sdram_config, 16:31 sdram_refresh */
+	u32 config_ncdl;	/* ncdl values for memc */
+};
 
 static char nvram_buf[NVRAM_SPACE];
 static const u32 nvram_sizes[] = {0x8000, 0xF000, 0x10000};
 
-static u32 find_nvram_size(u32 end)
+static u32 find_nvram_size(void __iomem *end)
 {
-	struct nvram_header *header;
+	struct nvram_header __iomem *header;
 	int i;
 
 	for (i = 0; i < ARRAY_SIZE(nvram_sizes); i++) {
-		header = (struct nvram_header *)KSEG1ADDR(end - nvram_sizes[i]);
-		if (header->magic == NVRAM_HEADER)
+		header = (struct nvram_header *)(end - nvram_sizes[i]);
+		if (header->magic == NVRAM_MAGIC)
 			return nvram_sizes[i];
 	}
 
@@ -38,36 +49,40 @@ static u32 find_nvram_size(u32 end)
 }
 
 /* Probe for NVRAM header */
-static int nvram_find_and_copy(u32 base, u32 lim)
+static int nvram_find_and_copy(void __iomem *iobase, u32 lim)
 {
-	struct nvram_header *header;
+	struct nvram_header __iomem *header;
 	int i;
 	u32 off;
 	u32 *src, *dst;
 	u32 size;
 
+	if (nvram_buf[0]) {
+		pr_warn("nvram already initialized\n");
+		return -EEXIST;
+	}
+
 	/* TODO: when nvram is on nand flash check for bad blocks first. */
 	off = FLASH_MIN;
 	while (off <= lim) {
 		/* Windowed flash access */
-		size = find_nvram_size(base + off);
+		size = find_nvram_size(iobase + off);
 		if (size) {
-			header = (struct nvram_header *)KSEG1ADDR(base + off -
-								  size);
+			header = (struct nvram_header *)(iobase + off - size);
 			goto found;
 		}
 		off <<= 1;
 	}
 
 	/* Try embedded NVRAM at 4 KB and 1 KB as last resorts */
-	header = (struct nvram_header *) KSEG1ADDR(base + 4096);
-	if (header->magic == NVRAM_HEADER) {
+	header = (struct nvram_header *)(iobase + 4096);
+	if (header->magic == NVRAM_MAGIC) {
 		size = NVRAM_SPACE;
 		goto found;
 	}
 
-	header = (struct nvram_header *) KSEG1ADDR(base + 1024);
-	if (header->magic == NVRAM_HEADER) {
+	header = (struct nvram_header *)(iobase + 1024);
+	if (header->magic == NVRAM_MAGIC) {
 		size = NVRAM_SPACE;
 		goto found;
 	}
@@ -94,71 +109,73 @@ static int nvram_find_and_copy(u32 base, u32 lim)
 	return 0;
 }
 
-#ifdef CONFIG_BCM47XX_SSB
-static int nvram_init_ssb(void)
+/*
+ * On bcm47xx we need access to the NVRAM very early, so we can't use mtd
+ * subsystem to access flash. We can't even use platform device / driver to
+ * store memory offset.
+ * To handle this we provide following symbol. It's supposed to be called as
+ * soon as we get info about flash device, before any NVRAM entry is needed.
+ */
+int bcm47xx_nvram_init_from_mem(u32 base, u32 lim)
 {
-	struct ssb_mipscore *mcore = &bcm47xx_bus.ssb.mipscore;
-	u32 base;
-	u32 lim;
-
-	if (mcore->pflash.present) {
-		base = mcore->pflash.window;
-		lim = mcore->pflash.window_size;
-	} else {
-		pr_err("Couldn't find supported flash memory\n");
-		return -ENXIO;
-	}
+	void __iomem *iobase;
+	int err;
 
-	return nvram_find_and_copy(base, lim);
-}
-#endif
+	iobase = ioremap_nocache(base, lim);
+	if (!iobase)
+		return -ENOMEM;
 
-#ifdef CONFIG_BCM47XX_BCMA
-static int nvram_init_bcma(void)
-{
-	struct bcma_drv_cc *cc = &bcm47xx_bus.bcma.bus.drv_cc;
-	u32 base;
-	u32 lim;
-
-#ifdef CONFIG_BCMA_NFLASH
-	if (cc->nflash.boot) {
-		base = BCMA_SOC_FLASH1;
-		lim = BCMA_SOC_FLASH1_SZ;
-	} else
-#endif
-	if (cc->pflash.present) {
-		base = cc->pflash.window;
-		lim = cc->pflash.window_size;
-#ifdef CONFIG_BCMA_SFLASH
-	} else if (cc->sflash.present) {
-		base = cc->sflash.window;
-		lim = cc->sflash.size;
-#endif
-	} else {
-		pr_err("Couldn't find supported flash memory\n");
-		return -ENXIO;
-	}
+	err = nvram_find_and_copy(iobase, lim);
+
+	iounmap(iobase);
 
-	return nvram_find_and_copy(base, lim);
+	return err;
 }
-#endif
 
 static int nvram_init(void)
 {
-	switch (bcm47xx_bus_type) {
-#ifdef CONFIG_BCM47XX_SSB
-	case BCM47XX_BUS_TYPE_SSB:
-		return nvram_init_ssb();
-#endif
-#ifdef CONFIG_BCM47XX_BCMA
-	case BCM47XX_BUS_TYPE_BCMA:
-		return nvram_init_bcma();
-#endif
+#ifdef CONFIG_MTD
+	struct mtd_info *mtd;
+	struct nvram_header header;
+	size_t bytes_read;
+	int err, i;
+
+	mtd = get_mtd_device_nm("nvram");
+	if (IS_ERR(mtd))
+		return -ENODEV;
+
+	for (i = 0; i < ARRAY_SIZE(nvram_sizes); i++) {
+		loff_t from = mtd->size - nvram_sizes[i];
+
+		if (from < 0)
+			continue;
+
+		err = mtd_read(mtd, from, sizeof(header), &bytes_read,
+			       (uint8_t *)&header);
+		if (!err && header.magic == NVRAM_MAGIC) {
+			u8 *dst = (uint8_t *)nvram_buf;
+			size_t len = header.len;
+
+			if (header.len > NVRAM_SPACE) {
+				pr_err("nvram on flash (%i bytes) is bigger than the reserved space in memory, will just copy the first %i bytes\n",
+				       header.len, NVRAM_SPACE);
+				len = NVRAM_SPACE;
+			}
+
+			err = mtd_read(mtd, from, len, &bytes_read, dst);
+			if (err)
+				return err;
+			memset(dst + bytes_read, 0x0, NVRAM_SPACE - bytes_read);
+
+			return 0;
+		}
 	}
+#endif
+
 	return -ENXIO;
 }
 
-int bcm47xx_nvram_getenv(char *name, char *val, size_t val_len)
+int bcm47xx_nvram_getenv(const char *name, char *val, size_t val_len)
 {
 	char *var, *value, *end, *eq;
 	int err;

arch/mips/bcm47xx/setup.c

@@ -102,23 +102,6 @@ static void bcm47xx_machine_halt(void)
 }
 
 #ifdef CONFIG_BCM47XX_SSB
-static int bcm47xx_get_sprom_ssb(struct ssb_bus *bus, struct ssb_sprom *out)
-{
-	char prefix[10];
-
-	if (bus->bustype == SSB_BUSTYPE_PCI) {
-		memset(out, 0, sizeof(struct ssb_sprom));
-		snprintf(prefix, sizeof(prefix), "pci/%u/%u/",
-			 bus->host_pci->bus->number + 1,
-			 PCI_SLOT(bus->host_pci->devfn));
-		bcm47xx_fill_sprom(out, prefix, false);
-		return 0;
-	} else {
-		printk(KERN_WARNING "bcm47xx: unable to fill SPROM for given bustype.\n");
-		return -EINVAL;
-	}
-}
-
 static int bcm47xx_get_invariants(struct ssb_bus *bus,
 				  struct ssb_init_invariants *iv)
 {
@@ -144,11 +127,6 @@ static void __init bcm47xx_register_ssb(void)
 	char buf[100];
 	struct ssb_mipscore *mcore;
 
-	err = ssb_arch_register_fallback_sprom(&bcm47xx_get_sprom_ssb);
-	if (err)
-		printk(KERN_WARNING "bcm47xx: someone else already registered"
-			" a ssb SPROM callback handler (err %d)\n", err);
-
 	err = ssb_bus_ssbbus_register(&(bcm47xx_bus.ssb), SSB_ENUM_BASE,
 				      bcm47xx_get_invariants);
 	if (err)
@@ -171,56 +149,21 @@ static void __init bcm47xx_register_ssb(void)
 #endif
 
 #ifdef CONFIG_BCM47XX_BCMA
-static int bcm47xx_get_sprom_bcma(struct bcma_bus *bus, struct ssb_sprom *out)
-{
-	char prefix[10];
-	struct bcma_device *core;
-
-	switch (bus->hosttype) {
-	case BCMA_HOSTTYPE_PCI:
-		memset(out, 0, sizeof(struct ssb_sprom));
-		snprintf(prefix, sizeof(prefix), "pci/%u/%u/",
-			 bus->host_pci->bus->number + 1,
-			 PCI_SLOT(bus->host_pci->devfn));
-		bcm47xx_fill_sprom(out, prefix, false);
-		return 0;
-	case BCMA_HOSTTYPE_SOC:
-		memset(out, 0, sizeof(struct ssb_sprom));
-		core = bcma_find_core(bus, BCMA_CORE_80211);
-		if (core) {
-			snprintf(prefix, sizeof(prefix), "sb/%u/",
-				 core->core_index);
-			bcm47xx_fill_sprom(out, prefix, true);
-		} else {
-			bcm47xx_fill_sprom(out, NULL, false);
-		}
-		return 0;
-	default:
-		pr_warn("bcm47xx: unable to fill SPROM for given bustype.\n");
-		return -EINVAL;
-	}
-}
-
 static void __init bcm47xx_register_bcma(void)
 {
 	int err;
 
-	err = bcma_arch_register_fallback_sprom(&bcm47xx_get_sprom_bcma);
-	if (err)
-		pr_warn("bcm47xx: someone else already registered a bcma SPROM callback handler (err %d)\n", err);
-
 	err = bcma_host_soc_register(&bcm47xx_bus.bcma);
 	if (err)
 		panic("Failed to register BCMA bus (err %d)", err);
-
-	err = bcma_host_soc_init(&bcm47xx_bus.bcma);
-	if (err)
-		panic("Failed to initialize BCMA bus (err %d)", err);
-
-	bcm47xx_fill_bcma_boardinfo(&bcm47xx_bus.bcma.bus.boardinfo, NULL);
 }
 #endif
 
+/*
+ * Memory setup is done in the early part of MIPS's arch_mem_init. It's supposed
+ * to detect memory and record it with add_memory_region.
+ * Any extra initializaion performed here must not use kmalloc or bootmem.
+ */
 void __init plat_mem_setup(void)
 {
 	struct cpuinfo_mips *c = &current_cpu_data;
@@ -229,6 +172,7 @@ void __init plat_mem_setup(void)
 		printk(KERN_INFO "bcm47xx: using bcma bus\n");
 #ifdef CONFIG_BCM47XX_BCMA
 		bcm47xx_bus_type = BCM47XX_BUS_TYPE_BCMA;
+		bcm47xx_sprom_register_fallbacks();
 		bcm47xx_register_bcma();
 		bcm47xx_set_system_type(bcm47xx_bus.bcma.bus.chipinfo.id);
 #ifdef CONFIG_HIGHMEM
@@ -239,6 +183,7 @@ void __init plat_mem_setup(void)
 		printk(KERN_INFO "bcm47xx: using ssb bus\n");
 #ifdef CONFIG_BCM47XX_SSB
 		bcm47xx_bus_type = BCM47XX_BUS_TYPE_SSB;
+		bcm47xx_sprom_register_fallbacks();
 		bcm47xx_register_ssb();
 		bcm47xx_set_system_type(bcm47xx_bus.ssb.chip_id);
 #endif
@@ -247,6 +192,28 @@ void __init plat_mem_setup(void)
 	_machine_restart = bcm47xx_machine_restart;
 	_machine_halt = bcm47xx_machine_halt;
 	pm_power_off = bcm47xx_machine_halt;
+}
+
+/*
+ * This finishes bus initialization doing things that were not possible without
+ * kmalloc. Make sure to call it late enough (after mm_init).
+ */
+void __init bcm47xx_bus_setup(void)
+{
+#ifdef CONFIG_BCM47XX_BCMA
+	if (bcm47xx_bus_type == BCM47XX_BUS_TYPE_BCMA) {
+		int err;
+
+		err = bcma_host_soc_init(&bcm47xx_bus.bcma);
+		if (err)
+			panic("Failed to initialize BCMA bus (err %d)", err);
+
+		bcm47xx_fill_bcma_boardinfo(&bcm47xx_bus.bcma.bus.boardinfo,
+					    NULL);
+	}
+#endif
+
+	/* With bus initialized we can access NVRAM and detect the board */
 	bcm47xx_board_detect();
 	mips_set_machine_name(bcm47xx_board_get_name());
 }

arch/mips/bcm47xx/sprom.c

@@ -136,6 +136,20 @@ static void nvram_read_leddc(const char *prefix, const char *name,
 	*leddc_off_time = (val >> 16) & 0xff;
 }
 
+static void bcm47xx_nvram_parse_macaddr(char *buf, u8 macaddr[6])
+{
+	if (strchr(buf, ':'))
+		sscanf(buf, "%hhx:%hhx:%hhx:%hhx:%hhx:%hhx", &macaddr[0],
+			&macaddr[1], &macaddr[2], &macaddr[3], &macaddr[4],
+			&macaddr[5]);
+	else if (strchr(buf, '-'))
+		sscanf(buf, "%hhx-%hhx-%hhx-%hhx-%hhx-%hhx", &macaddr[0],
+			&macaddr[1], &macaddr[2], &macaddr[3], &macaddr[4],
+			&macaddr[5]);
+	else
+		pr_warn("Can not parse mac address: %s\n", buf);
+}
+
 static void nvram_read_macaddr(const char *prefix, const char *name,
 			       u8 val[6], bool fallback)
 {
@@ -801,3 +815,71 @@ void bcm47xx_fill_bcma_boardinfo(struct bcma_boardinfo *boardinfo,
 	nvram_read_u16(prefix, NULL, "boardtype", &boardinfo->type, 0, true);
 }
 #endif
+
+#if defined(CONFIG_BCM47XX_SSB)
+static int bcm47xx_get_sprom_ssb(struct ssb_bus *bus, struct ssb_sprom *out)
+{
+	char prefix[10];
+
+	if (bus->bustype == SSB_BUSTYPE_PCI) {
+		memset(out, 0, sizeof(struct ssb_sprom));
+		snprintf(prefix, sizeof(prefix), "pci/%u/%u/",
+			 bus->host_pci->bus->number + 1,
+			 PCI_SLOT(bus->host_pci->devfn));
+		bcm47xx_fill_sprom(out, prefix, false);
+		return 0;
+	} else {
+		pr_warn("bcm47xx: unable to fill SPROM for given bustype.\n");
+		return -EINVAL;
+	}
+}
+#endif
+
+#if defined(CONFIG_BCM47XX_BCMA)
+static int bcm47xx_get_sprom_bcma(struct bcma_bus *bus, struct ssb_sprom *out)
+{
+	char prefix[10];
+	struct bcma_device *core;
+
+	switch (bus->hosttype) {
+	case BCMA_HOSTTYPE_PCI:
+		memset(out, 0, sizeof(struct ssb_sprom));
+		snprintf(prefix, sizeof(prefix), "pci/%u/%u/",
+			 bus->host_pci->bus->number + 1,
+			 PCI_SLOT(bus->host_pci->devfn));
+		bcm47xx_fill_sprom(out, prefix, false);
+		return 0;
+	case BCMA_HOSTTYPE_SOC:
+		memset(out, 0, sizeof(struct ssb_sprom));
+		core = bcma_find_core(bus, BCMA_CORE_80211);
+		if (core) {
+			snprintf(prefix, sizeof(prefix), "sb/%u/",
+				 core->core_index);
+			bcm47xx_fill_sprom(out, prefix, true);
+		} else {
+			bcm47xx_fill_sprom(out, NULL, false);
+		}
+		return 0;
+	default:
+		pr_warn("bcm47xx: unable to fill SPROM for given bustype.\n");
+		return -EINVAL;
+	}
+}
+#endif
+
+/*
+ * On bcm47xx we need to register SPROM fallback handler very early, so we can't
+ * use anything like platform device / driver for this.
+ */
+void bcm47xx_sprom_register_fallbacks(void)
+{
+#if defined(CONFIG_BCM47XX_SSB)
+	if (ssb_arch_register_fallback_sprom(&bcm47xx_get_sprom_ssb))
+		pr_warn("Failed to registered ssb SPROM handler\n");
+#endif
+
+#if defined(CONFIG_BCM47XX_BCMA)
+	if (bcma_arch_register_fallback_sprom(&bcm47xx_get_sprom_bcma))
+		pr_warn("Failed to registered bcma SPROM handler\n");
+#endif
+}

arch/mips/bcm63xx/cpu.c

@@ -263,7 +263,7 @@ static unsigned int detect_memory_size(void)
 
 	if (BCMCPU_IS_6345()) {
 		val = bcm_sdram_readl(SDRAM_MBASE_REG);
-		return (val * 8 * 1024 * 1024);
+		return val * 8 * 1024 * 1024;
 	}
 
 	if (BCMCPU_IS_6338() || BCMCPU_IS_6348()) {

arch/mips/boot/dts/Makefile

+dtb-$(CONFIG_BCM3384)			+= bcm93384wvg.dtb
 dtb-$(CONFIG_CAVIUM_OCTEON_SOC)		+= octeon_3xxx.dtb octeon_68xx.dtb
 dtb-$(CONFIG_DT_EASY50712)		+= easy50712.dtb
 dtb-$(CONFIG_DT_XLP_EVP)		+= xlp_evp.dtb

arch/mips/boot/dts/bcm3384.dtsi

+/ {
+	#address-cells = <1>;
+	#size-cells = <1>;
+	compatible = "brcm,bcm3384", "brcm,bcm33843";
+
+	cpus {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		/* On BMIPS5000 this is 1/8th of the CPU core clock */
+		mips-hpt-frequency = <100000000>;
+
+		cpu@0 {
+			compatible = "brcm,bmips5000";
+			device_type = "cpu";
+			reg = <0>;
+		};
+
+		cpu@1 {
+			compatible = "brcm,bmips5000";
+			device_type = "cpu";
+			reg = <1>;
+		};
+	};
+
+	clocks {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		periph_clk: periph_clk@0 {
+			compatible = "fixed-clock";
+			#clock-cells = <0>;
+			clock-frequency = <54000000>;
+		};
+	};
+
+	aliases {
+		uart0 = &uart0;
+	};
+
+	cpu_intc: cpu_intc@0 {
+		#address-cells = <0>;
+		compatible = "mti,cpu-interrupt-controller";
+
+		interrupt-controller;
+		#interrupt-cells = <1>;
+	};
+
+	periph_intc: periph_intc@14e00038 {
+		compatible = "brcm,bcm3384-intc";
+		reg = <0x14e00038 0x8 0x14e00340 0x8>;
+
+		interrupt-controller;
+		#interrupt-cells = <1>;
+
+		interrupt-parent = <&cpu_intc>;
+		interrupts = <4>;
+	};
+
+	zmips_intc: zmips_intc@104b0060 {
+		compatible = "brcm,bcm3384-intc";
+		reg = <0x104b0060 0x8>;
+
+		interrupt-controller;
+		#interrupt-cells = <1>;
+
+		interrupt-parent = <&periph_intc>;
+		interrupts = <29>;
+	};
+
+	iop_intc: iop_intc@14e00058 {
+		compatible = "brcm,bcm3384-intc";
+		reg = <0x14e00058 0x8>;
+
+		interrupt-controller;
+		#interrupt-cells = <1>;
+
+		interrupt-parent = <&cpu_intc>;
+		interrupts = <6>;
+	};
+
+	uart0: serial@14e00520 {
+		compatible = "brcm,bcm6345-uart";
+		reg = <0x14e00520 0x18>;
+		interrupt-parent = <&periph_intc>;
+		interrupts = <2>;
+		clocks = <&periph_clk>;
+		status = "disabled";
+	};
+
+	ehci0: usb@15400300 {
+		compatible = "brcm,bcm3384-ehci", "generic-ehci";
+		reg = <0x15400300 0x100>;
+		big-endian;
+		interrupt-parent = <&periph_intc>;
+		interrupts = <41>;
+		status = "disabled";
+	};
+
+	ohci0: usb@15400400 {
+		compatible = "brcm,bcm3384-ohci", "generic-ohci";
+		reg = <0x15400400 0x100>;
+		big-endian;
+		no-big-frame-no;
+		interrupt-parent = <&periph_intc>;
+		interrupts = <40>;
+		status = "disabled";
+	};
+};

arch/mips/boot/dts/bcm93384wvg.dts

+/dts-v1/;
+
+/include/ "bcm3384.dtsi"
+
+/ {
+	compatible = "brcm,bcm93384wvg", "brcm,bcm3384";
+	model = "Broadcom BCM93384WVG";
+
+	chosen {
+		bootargs = "console=ttyS0,115200";
+		stdout-path = &uart0;
+	};
+
+	memory@0 {
+		device_type = "memory";
+		reg = <0x0 0x04000000>;
+		dma-xor-mask = <0x08000000>;
+		dma-xor-limit = <0x0fffffff>;
+	};
+};
+
+&uart0 {
+	status = "okay";
+};
+
+&ehci0 {
+	status = "okay";
+};
+
+&ohci0 {
+	status = "okay";
+};

arch/mips/cavium-octeon/dma-octeon.c

@@ -262,8 +262,8 @@ char *octeon_swiotlb;
 void __init plat_swiotlb_setup(void)
 {
 	int i;
-	phys_t max_addr;
-	phys_t addr_size;
+	phys_addr_t max_addr;
+	phys_addr_t addr_size;
 	size_t swiotlbsize;
 	unsigned long swiotlb_nslabs;
 

arch/mips/cavium-octeon/executive/octeon-model.c

@@ -28,22 +28,23 @@
 #include <asm/octeon/octeon.h>
 
 /**
- * Given the chip processor ID from COP0, this function returns a
- * string representing the chip model number. The string is of the
- * form CNXXXXpX.X-FREQ-SUFFIX.
- * - XXXX = The chip model number
- * - X.X = Chip pass number
- * - FREQ = Current frequency in Mhz
- * - SUFFIX = NSP, EXP, SCP, SSP, or CP
- *
- * @chip_id: Chip ID
+ * Read a byte of fuse data
+ * @byte_addr:	 address to read
  *
- * Returns Model string
+ * Returns fuse value: 0 or 1
  */
-const char *octeon_model_get_string(uint32_t chip_id)
+static uint8_t __init cvmx_fuse_read_byte(int byte_addr)
 {
-	static char buffer[32];
-	return octeon_model_get_string_buffer(chip_id, buffer);
+	union cvmx_mio_fus_rcmd read_cmd;
+
+	read_cmd.u64 = 0;
+	read_cmd.s.addr = byte_addr;
+	read_cmd.s.pend = 1;
+	cvmx_write_csr(CVMX_MIO_FUS_RCMD, read_cmd.u64);
+	while ((read_cmd.u64 = cvmx_read_csr(CVMX_MIO_FUS_RCMD))
+	       && read_cmd.s.pend)
+		;
+	return read_cmd.s.dat;
 }
 
 /*
@@ -51,7 +52,8 @@ const char *octeon_model_get_string(uint32_t chip_id)
  * as running early in u-boot static/global variables don't work when
  * running from flash.
  */
-const char *octeon_model_get_string_buffer(uint32_t chip_id, char *buffer)
+static const char *__init octeon_model_get_string_buffer(uint32_t chip_id,
+							 char *buffer)
 {
 	const char *family;
 	const char *core_model;
@@ -407,3 +409,22 @@ const char *octeon_model_get_string_buffer(uint32_t chip_id, char *buffer)
 	sprintf(buffer, "CN%s%sp%s-%d-%s", family, core_model, pass, clock_mhz, suffix);
 	return buffer;
 }
+
+/**
+ * Given the chip processor ID from COP0, this function returns a
+ * string representing the chip model number. The string is of the
+ * form CNXXXXpX.X-FREQ-SUFFIX.
+ * - XXXX = The chip model number
+ * - X.X = Chip pass number
+ * - FREQ = Current frequency in Mhz
+ * - SUFFIX = NSP, EXP, SCP, SSP, or CP
+ *
+ * @chip_id: Chip ID
+ *
+ * Returns Model string
+ */
+const char *__init octeon_model_get_string(uint32_t chip_id)
+{
+	static char buffer[32];
+	return octeon_model_get_string_buffer(chip_id, buffer);
+}

arch/mips/configs/bcm3384_defconfig

+CONFIG_BCM3384=y
+CONFIG_HIGHMEM=y
+CONFIG_SMP=y
+CONFIG_NR_CPUS=4
+# CONFIG_SECCOMP is not set
+CONFIG_MIPS_O32_FP64_SUPPORT=y
+# CONFIG_LOCALVERSION_AUTO is not set
+# CONFIG_SWAP is not set
+CONFIG_NO_HZ=y
+CONFIG_BLK_DEV_INITRD=y
+# CONFIG_RD_GZIP is not set
+CONFIG_EXPERT=y
+# CONFIG_VM_EVENT_COUNTERS is not set
+# CONFIG_SLUB_DEBUG is not set
+# CONFIG_BLK_DEV_BSG is not set
+# CONFIG_IOSCHED_DEADLINE is not set
+# CONFIG_IOSCHED_CFQ is not set
+CONFIG_NET=y
+CONFIG_PACKET=y
+CONFIG_PACKET_DIAG=y
+CONFIG_UNIX=y
+CONFIG_INET=y
+# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
+# CONFIG_INET_XFRM_MODE_TUNNEL is not set
+# CONFIG_INET_XFRM_MODE_BEET is not set
+# CONFIG_INET_LRO is not set
+# CONFIG_INET_DIAG is not set
+CONFIG_CFG80211=y
+CONFIG_NL80211_TESTMODE=y
+CONFIG_MAC80211=y
+CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
+CONFIG_DEVTMPFS=y
+CONFIG_DEVTMPFS_MOUNT=y
+# CONFIG_STANDALONE is not set
+# CONFIG_PREVENT_FIRMWARE_BUILD is not set
+CONFIG_MTD=y
+CONFIG_MTD_CFI=y
+CONFIG_MTD_CFI_INTELEXT=y
+CONFIG_MTD_CFI_AMDSTD=y
+CONFIG_MTD_PHYSMAP=y
+# CONFIG_BLK_DEV is not set
+CONFIG_SCSI=y
+CONFIG_BLK_DEV_SD=y
+# CONFIG_SCSI_LOWLEVEL is not set
+CONFIG_NETDEVICES=y
+CONFIG_USB_USBNET=y
+# CONFIG_INPUT is not set
+# CONFIG_SERIO is not set
+# CONFIG_VT is not set
+# CONFIG_DEVKMEM is not set
+CONFIG_SERIAL_EARLYCON_FORCE=y
+CONFIG_SERIAL_BCM63XX=y
+CONFIG_SERIAL_BCM63XX_CONSOLE=y
+# CONFIG_HW_RANDOM is not set
+# CONFIG_HWMON is not set
+CONFIG_USB=y
+CONFIG_USB_EHCI_HCD=y
+# CONFIG_USB_EHCI_TT_NEWSCHED is not set
+CONFIG_USB_EHCI_HCD_PLATFORM=y
+CONFIG_USB_OHCI_HCD=y
+CONFIG_USB_OHCI_HCD_PLATFORM=y
+CONFIG_USB_STORAGE=y
+CONFIG_EXT4_FS=y
+CONFIG_EXT4_FS_POSIX_ACL=y
+CONFIG_EXT4_FS_SECURITY=y
+# CONFIG_DNOTIFY is not set
+CONFIG_FUSE_FS=y
+CONFIG_VFAT_FS=y
+CONFIG_PROC_KCORE=y
+CONFIG_TMPFS=y
+CONFIG_NFS_FS=y
+CONFIG_CIFS=y
+CONFIG_NLS_CODEPAGE_437=y
+CONFIG_NLS_ASCII=y
+CONFIG_NLS_ISO8859_1=y
+CONFIG_DEBUG_FS=y
+CONFIG_MAGIC_SYSRQ=y
+# CONFIG_CRYPTO_HW is not set

arch/mips/fw/lib/cmdline.c

@@ -68,7 +68,7 @@ char *fw_getenv(char *envname)
 					result = fw_envp(index + 1);
 					break;
 				} else if (fw_envp(index)[i] == '=') {
-					result = (fw_envp(index + 1) + i);
+					result = fw_envp(index) + i + 1;
 					break;
 				}
 			}
@@ -88,13 +88,13 @@ unsigned long fw_getenvl(char *envname)
 {
 	unsigned long envl = 0UL;
 	char *str;
-	long val;
 	int tmp;
 
 	str = fw_getenv(envname);
 	if (str) {
-		tmp = kstrtol(str, 0, &val);
-		envl = (unsigned long)val;
+		tmp = kstrtoul(str, 0, &envl);
+		if (tmp)
+			envl = 0;
 	}
 
 	return envl;

arch/mips/include/asm/bitops.h

@@ -17,6 +17,7 @@
 #include <linux/types.h>
 #include <asm/barrier.h>
 #include <asm/byteorder.h>		/* sigh ... */
+#include <asm/compiler.h>
 #include <asm/cpu-features.h>
 #include <asm/sgidefs.h>
 #include <asm/war.h>
@@ -78,8 +79,8 @@ static inline void set_bit(unsigned long nr, volatile unsigned long *addr)
 		"	" __SC	"%0, %1					\n"
 		"	beqzl	%0, 1b					\n"
 		"	.set	mips0					\n"
-		: "=&r" (temp), "=m" (*m)
-		: "ir" (1UL << bit), "m" (*m));
+		: "=&r" (temp), "=" GCC_OFF12_ASM() (*m)
+		: "ir" (1UL << bit), GCC_OFF12_ASM() (*m));
 #ifdef CONFIG_CPU_MIPSR2
 	} else if (kernel_uses_llsc && __builtin_constant_p(bit)) {
 		do {
@@ -87,7 +88,7 @@ static inline void set_bit(unsigned long nr, volatile unsigned long *addr)
 			"	" __LL "%0, %1		# set_bit	\n"
 			"	" __INS "%0, %3, %2, 1			\n"
 			"	" __SC "%0, %1				\n"
-			: "=&r" (temp), "+m" (*m)
+			: "=&r" (temp), "+" GCC_OFF12_ASM() (*m)
 			: "ir" (bit), "r" (~0));
 		} while (unlikely(!temp));
 #endif /* CONFIG_CPU_MIPSR2 */
@@ -99,7 +100,7 @@ static inline void set_bit(unsigned long nr, volatile unsigned long *addr)
 			"	or	%0, %2				\n"
 			"	" __SC	"%0, %1				\n"
 			"	.set	mips0				\n"
-			: "=&r" (temp), "+m" (*m)
+			: "=&r" (temp), "+" GCC_OFF12_ASM() (*m)
 			: "ir" (1UL << bit));
 		} while (unlikely(!temp));
 	} else
@@ -130,7 +131,7 @@ static inline void clear_bit(unsigned long nr, volatile unsigned long *addr)
 		"	" __SC "%0, %1					\n"
 		"	beqzl	%0, 1b					\n"
 		"	.set	mips0					\n"
-		: "=&r" (temp), "+m" (*m)
+		: "=&r" (temp), "+" GCC_OFF12_ASM() (*m)
 		: "ir" (~(1UL << bit)));
 #ifdef CONFIG_CPU_MIPSR2
 	} else if (kernel_uses_llsc && __builtin_constant_p(bit)) {
@@ -139,7 +140,7 @@ static inline void clear_bit(unsigned long nr, volatile unsigned long *addr)
 			"	" __LL "%0, %1		# clear_bit	\n"
 			"	" __INS "%0, $0, %2, 1			\n"
 			"	" __SC "%0, %1				\n"
-			: "=&r" (temp), "+m" (*m)
+			: "=&r" (temp), "+" GCC_OFF12_ASM() (*m)
 			: "ir" (bit));
 		} while (unlikely(!temp));
 #endif /* CONFIG_CPU_MIPSR2 */
@@ -151,7 +152,7 @@ static inline void clear_bit(unsigned long nr, volatile unsigned long *addr)
 			"	and	%0, %2				\n"
 			"	" __SC "%0, %1				\n"
 			"	.set	mips0				\n"
-			: "=&r" (temp), "+m" (*m)
+			: "=&r" (temp), "+" GCC_OFF12_ASM() (*m)
 			: "ir" (~(1UL << bit)));
 		} while (unlikely(!temp));
 	} else
@@ -196,7 +197,7 @@ static inline void change_bit(unsigned long nr, volatile unsigned long *addr)
 		"	" __SC	"%0, %1				\n"
 		"	beqzl	%0, 1b				\n"
 		"	.set	mips0				\n"
-		: "=&r" (temp), "+m" (*m)
+		: "=&r" (temp), "+" GCC_OFF12_ASM() (*m)
 		: "ir" (1UL << bit));
 	} else if (kernel_uses_llsc) {
 		unsigned long *m = ((unsigned long *) addr) + (nr >> SZLONG_LOG);
@@ -209,7 +210,7 @@ static inline void change_bit(unsigned long nr, volatile unsigned long *addr)
 			"	xor	%0, %2				\n"
 			"	" __SC	"%0, %1				\n"
 			"	.set	mips0				\n"
-			: "=&r" (temp), "+m" (*m)
+			: "=&r" (temp), "+" GCC_OFF12_ASM() (*m)
 			: "ir" (1UL << bit));
 		} while (unlikely(!temp));
 	} else
@@ -244,7 +245,7 @@ static inline int test_and_set_bit(unsigned long nr,
 		"	beqzl	%2, 1b					\n"
 		"	and	%2, %0, %3				\n"
 		"	.set	mips0					\n"
-		: "=&r" (temp), "+m" (*m), "=&r" (res)
+		: "=&r" (temp), "+" GCC_OFF12_ASM() (*m), "=&r" (res)
 		: "r" (1UL << bit)
 		: "memory");
 	} else if (kernel_uses_llsc) {
@@ -258,7 +259,7 @@ static inline int test_and_set_bit(unsigned long nr,
 			"	or	%2, %0, %3			\n"
 			"	" __SC	"%2, %1				\n"
 			"	.set	mips0				\n"
-			: "=&r" (temp), "+m" (*m), "=&r" (res)
+			: "=&r" (temp), "+" GCC_OFF12_ASM() (*m), "=&r" (res)
 			: "r" (1UL << bit)
 			: "memory");
 		} while (unlikely(!res));
@@ -312,7 +313,7 @@ static inline int test_and_set_bit_lock(unsigned long nr,
 			"	or	%2, %0, %3			\n"
 			"	" __SC	"%2, %1				\n"
 			"	.set	mips0				\n"
-			: "=&r" (temp), "+m" (*m), "=&r" (res)
+			: "=&r" (temp), "+" GCC_OFF12_ASM() (*m), "=&r" (res)
 			: "r" (1UL << bit)
 			: "memory");
 		} while (unlikely(!res));
@@ -354,7 +355,7 @@ static inline int test_and_clear_bit(unsigned long nr,
 		"	beqzl	%2, 1b					\n"
 		"	and	%2, %0, %3				\n"
 		"	.set	mips0					\n"
-		: "=&r" (temp), "+m" (*m), "=&r" (res)
+		: "=&r" (temp), "+" GCC_OFF12_ASM() (*m), "=&r" (res)
 		: "r" (1UL << bit)
 		: "memory");
 #ifdef CONFIG_CPU_MIPSR2
@@ -368,7 +369,7 @@ static inline int test_and_clear_bit(unsigned long nr,
 			"	" __EXT "%2, %0, %3, 1			\n"
 			"	" __INS "%0, $0, %3, 1			\n"
 			"	" __SC	"%0, %1				\n"
-			: "=&r" (temp), "+m" (*m), "=&r" (res)
+			: "=&r" (temp), "+" GCC_OFF12_ASM() (*m), "=&r" (res)
 			: "ir" (bit)
 			: "memory");
 		} while (unlikely(!temp));
@@ -385,7 +386,7 @@ static inline int test_and_clear_bit(unsigned long nr,
 			"	xor	%2, %3				\n"
 			"	" __SC	"%2, %1				\n"
 			"	.set	mips0				\n"
-			: "=&r" (temp), "+m" (*m), "=&r" (res)
+			: "=&r" (temp), "+" GCC_OFF12_ASM() (*m), "=&r" (res)
 			: "r" (1UL << bit)
 			: "memory");
 		} while (unlikely(!res));
@@ -427,7 +428,7 @@ static inline int test_and_change_bit(unsigned long nr,
 		"	beqzl	%2, 1b					\n"
 		"	and	%2, %0, %3				\n"
 		"	.set	mips0					\n"
-		: "=&r" (temp), "+m" (*m), "=&r" (res)
+		: "=&r" (temp), "+" GCC_OFF12_ASM() (*m), "=&r" (res)
 		: "r" (1UL << bit)
 		: "memory");
 	} else if (kernel_uses_llsc) {
@@ -441,7 +442,7 @@ static inline int test_and_change_bit(unsigned long nr,
 			"	xor	%2, %0, %3			\n"
 			"	" __SC	"\t%2, %1			\n"
 			"	.set	mips0				\n"
-			: "=&r" (temp), "+m" (*m), "=&r" (res)
+			: "=&r" (temp), "+" GCC_OFF12_ASM() (*m), "=&r" (res)
 			: "r" (1UL << bit)
 			: "memory");
 		} while (unlikely(!res));

arch/mips/include/asm/bmips.h

@@ -84,6 +84,7 @@ extern char bmips_smp_int_vec_end;
 extern int bmips_smp_enabled;
 extern int bmips_cpu_offset;
 extern cpumask_t bmips_booted_mask;
+extern unsigned long bmips_tp1_irqs;
 
 extern void bmips_ebase_setup(void);
 extern asmlinkage void plat_wired_tlb_setup(void);

arch/mips/include/asm/bootinfo.h

@@ -70,10 +70,7 @@ enum loongson_machine_type {
 	MACH_DEXXON_GDIUM2F10,
 	MACH_LEMOTE_NAS,
 	MACH_LEMOTE_LL2F,
-	MACH_LEMOTE_A1004,
-	MACH_LEMOTE_A1101,
-	MACH_LEMOTE_A1201,
-	MACH_LEMOTE_A1205,
+	MACH_LOONGSON_GENERIC,
 	MACH_LOONGSON_END
 };
 
@@ -101,16 +98,16 @@ extern unsigned long mips_machtype;
 struct boot_mem_map {
 	int nr_map;
 	struct boot_mem_map_entry {
-		phys_t addr;	/* start of memory segment */
-		phys_t size;	/* size of memory segment */
+		phys_addr_t addr;	/* start of memory segment */
+		phys_addr_t size;	/* size of memory segment */
 		long type;		/* type of memory segment */
 	} map[BOOT_MEM_MAP_MAX];
 };
 
 extern struct boot_mem_map boot_mem_map;
 
-extern void add_memory_region(phys_t start, phys_t size, long type);
-extern void detect_memory_region(phys_t start, phys_t sz_min,  phys_t sz_max);
+extern void add_memory_region(phys_addr_t start, phys_addr_t size, long type);
+extern void detect_memory_region(phys_addr_t start, phys_addr_t sz_min,  phys_addr_t sz_max);
 
 extern void prom_init(void);
 extern void prom_free_prom_memory(void);

arch/mips/include/asm/clock.h

@@ -35,9 +35,6 @@ struct clk {
 #define CLK_ALWAYS_ENABLED	(1 << 0)
 #define CLK_RATE_PROPAGATES	(1 << 1)
 
-/* Should be defined by processor-specific code */
-void arch_init_clk_ops(struct clk_ops **, int type);
-
 int clk_init(void);
 
 int __clk_enable(struct clk *);

arch/mips/include/asm/cmpxchg.h

@@ -10,6 +10,7 @@
 
 #include <linux/bug.h>
 #include <linux/irqflags.h>
+#include <asm/compiler.h>
 #include <asm/war.h>
 
 static inline unsigned long __xchg_u32(volatile int * m, unsigned int val)
@@ -30,8 +31,8 @@ static inline unsigned long __xchg_u32(volatile int * m, unsigned int val)
 		"	sc	%2, %1					\n"
 		"	beqzl	%2, 1b					\n"
 		"	.set	mips0					\n"
-		: "=&r" (retval), "=m" (*m), "=&r" (dummy)
-		: "R" (*m), "Jr" (val)
+		: "=&r" (retval), "=" GCC_OFF12_ASM() (*m), "=&r" (dummy)
+		: GCC_OFF12_ASM() (*m), "Jr" (val)
 		: "memory");
 	} else if (kernel_uses_llsc) {
 		unsigned long dummy;
@@ -45,8 +46,9 @@ static inline unsigned long __xchg_u32(volatile int * m, unsigned int val)
 			"	.set	arch=r4000			\n"
 			"	sc	%2, %1				\n"
 			"	.set	mips0				\n"
-			: "=&r" (retval), "=m" (*m), "=&r" (dummy)
-			: "R" (*m), "Jr" (val)
+			: "=&r" (retval), "=" GCC_OFF12_ASM() (*m),
+			  "=&r" (dummy)
+			: GCC_OFF12_ASM() (*m), "Jr" (val)
 			: "memory");
 		} while (unlikely(!dummy));
 	} else {
@@ -80,8 +82,8 @@ static inline __u64 __xchg_u64(volatile __u64 * m, __u64 val)
 		"	scd	%2, %1					\n"
 		"	beqzl	%2, 1b					\n"
 		"	.set	mips0					\n"
-		: "=&r" (retval), "=m" (*m), "=&r" (dummy)
-		: "R" (*m), "Jr" (val)
+		: "=&r" (retval), "=" GCC_OFF12_ASM() (*m), "=&r" (dummy)
+		: GCC_OFF12_ASM() (*m), "Jr" (val)
 		: "memory");
 	} else if (kernel_uses_llsc) {
 		unsigned long dummy;
@@ -93,8 +95,9 @@ static inline __u64 __xchg_u64(volatile __u64 * m, __u64 val)
 			"	move	%2, %z4				\n"
 			"	scd	%2, %1				\n"
 			"	.set	mips0				\n"
-			: "=&r" (retval), "=m" (*m), "=&r" (dummy)
-			: "R" (*m), "Jr" (val)
+			: "=&r" (retval), "=" GCC_OFF12_ASM() (*m),
+			  "=&r" (dummy)
+			: GCC_OFF12_ASM() (*m), "Jr" (val)
 			: "memory");
 		} while (unlikely(!dummy));
 	} else {
@@ -155,8 +158,8 @@ static inline unsigned long __xchg(unsigned long x, volatile void * ptr, int siz
 		"	beqzl	$1, 1b				\n"	\
 		"2:						\n"	\
 		"	.set	pop				\n"	\
-		: "=&r" (__ret), "=R" (*m)				\
-		: "R" (*m), "Jr" (old), "Jr" (new)			\
+		: "=&r" (__ret), "=" GCC_OFF12_ASM() (*m)		\
+		: GCC_OFF12_ASM() (*m), "Jr" (old), "Jr" (new)		\
 		: "memory");						\
 	} else if (kernel_uses_llsc) {					\
 		__asm__ __volatile__(					\
@@ -172,8 +175,8 @@ static inline unsigned long __xchg(unsigned long x, volatile void * ptr, int siz
 		"	beqz	$1, 1b				\n"	\
 		"	.set	pop				\n"	\
 		"2:						\n"	\
-		: "=&r" (__ret), "=R" (*m)				\
-		: "R" (*m), "Jr" (old), "Jr" (new)			\
+		: "=&r" (__ret), "=" GCC_OFF12_ASM() (*m)		\
+		: GCC_OFF12_ASM() (*m), "Jr" (old), "Jr" (new)		\
 		: "memory");						\
 	} else {							\
 		unsigned long __flags;					\

arch/mips/include/asm/compiler.h

@@ -16,4 +16,12 @@
 #define GCC_REG_ACCUM "accum"
 #endif
 
+#ifndef CONFIG_CPU_MICROMIPS
+#define GCC_OFF12_ASM() "R"
+#elif __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 9)
+#define GCC_OFF12_ASM() "ZC"
+#else
+#error "microMIPS compilation unsupported with GCC older than 4.9"
+#endif
+
 #endif /* _ASM_COMPILER_H */

arch/mips/include/asm/cpu-features.h

@@ -344,4 +344,8 @@
 # define cpu_has_msa		0
 #endif
 
+#ifndef cpu_has_fre
+# define cpu_has_fre		(cpu_data[0].options & MIPS_CPU_FRE)
+#endif
+
 #endif /* __ASM_CPU_FEATURES_H */

arch/mips/include/asm/cpu.h

@@ -142,6 +142,7 @@
 #define PRID_IMP_BMIPS3300_BUG	0x0000
 #define PRID_IMP_BMIPS43XX	0xa000
 #define PRID_IMP_BMIPS5000	0x5a00
+#define PRID_IMP_BMIPS5200	0x5b00
 
 #define PRID_REV_BMIPS4380_LO	0x0040
 #define PRID_REV_BMIPS4380_HI	0x006f
@@ -368,6 +369,7 @@ enum cpu_type_enum {
 #define MIPS_CPU_HTW		0x100000000ull /* CPU support Hardware Page Table Walker */
 #define MIPS_CPU_RIXIEX		0x200000000ull /* CPU has unique exception codes for {Read, Execute}-Inhibit exceptions */
 #define MIPS_CPU_MAAR		0x400000000ull /* MAAR(I) registers are present */
+#define MIPS_CPU_FRE		0x800000000ull /* FRE & UFE bits implemented */
 
 /*
  * CPU ASE encodings

arch/mips/include/asm/edac.h

 #ifndef ASM_EDAC_H
 #define ASM_EDAC_H
 
+#include <asm/compiler.h>
+
 /* ECC atomic, DMA, SMP and interrupt safe scrub function */
 
 static inline void atomic_scrub(void *va, u32 size)
@@ -24,8 +26,8 @@ static inline void atomic_scrub(void *va, u32 size)
 		"	sc	%0, %1					\n"
 		"	beqz	%0, 1b					\n"
 		"	.set	mips0					\n"
-		: "=&r" (temp), "=m" (*virt_addr)
-		: "m" (*virt_addr));
+		: "=&r" (temp), "=" GCC_OFF12_ASM() (*virt_addr)
+		: GCC_OFF12_ASM() (*virt_addr));
 
 		virt_addr++;
 	}

arch/mips/include/asm/elf.h

@@ -8,6 +8,8 @@
 #ifndef _ASM_ELF_H
 #define _ASM_ELF_H
 
+#include <linux/fs.h>
+#include <uapi/linux/elf.h>
 
 /* ELF header e_flags defines. */
 /* MIPS architecture level. */
@@ -28,6 +30,7 @@
 #define PT_MIPS_REGINFO		0x70000000
 #define PT_MIPS_RTPROC		0x70000001
 #define PT_MIPS_OPTIONS		0x70000002
+#define PT_MIPS_ABIFLAGS	0x70000003
 
 /* Flags in the e_flags field of the header */
 #define EF_MIPS_NOREORDER	0x00000001
@@ -174,6 +177,30 @@ typedef elf_greg_t elf_gregset_t[ELF_NGREG];
 typedef double elf_fpreg_t;
 typedef elf_fpreg_t elf_fpregset_t[ELF_NFPREG];
 
+struct mips_elf_abiflags_v0 {
+	uint16_t version;	/* Version of flags structure */
+	uint8_t isa_level;	/* The level of the ISA: 1-5, 32, 64 */
+	uint8_t isa_rev;	/* The revision of ISA: 0 for MIPS V and below,
+				   1-n otherwise */
+	uint8_t gpr_size;	/* The size of general purpose registers */
+	uint8_t cpr1_size;	/* The size of co-processor 1 registers */
+	uint8_t cpr2_size;	/* The size of co-processor 2 registers */
+	uint8_t fp_abi;		/* The floating-point ABI */
+	uint32_t isa_ext;	/* Mask of processor-specific extensions */
+	uint32_t ases;		/* Mask of ASEs used */
+	uint32_t flags1;	/* Mask of general flags */
+	uint32_t flags2;
+};
+
+#define MIPS_ABI_FP_ANY		0	/* FP ABI doesn't matter */
+#define MIPS_ABI_FP_DOUBLE	1	/* -mdouble-float */
+#define MIPS_ABI_FP_SINGLE	2	/* -msingle-float */
+#define MIPS_ABI_FP_SOFT	3	/* -msoft-float */
+#define MIPS_ABI_FP_OLD_64	4	/* -mips32r2 -mfp64 */
+#define MIPS_ABI_FP_XX		5	/* -mfpxx */
+#define MIPS_ABI_FP_64		6	/* -mips32r2 -mfp64 */
+#define MIPS_ABI_FP_64A		7	/* -mips32r2 -mfp64 -mno-odd-spreg */
+
 #ifdef CONFIG_32BIT
 
 /*
@@ -262,16 +289,13 @@ extern struct mips_abi mips_abi_n32;
 
 #ifdef CONFIG_32BIT
 
-#define SET_PERSONALITY(ex)						\
+#define SET_PERSONALITY2(ex, state)					\
 do {									\
-	if ((ex).e_flags & EF_MIPS_FP64)				\
-		clear_thread_flag(TIF_32BIT_FPREGS);			\
-	else								\
-		set_thread_flag(TIF_32BIT_FPREGS);			\
-									\
 	if (personality(current->personality) != PER_LINUX)		\
 		set_personality(PER_LINUX);				\
 									\
+	mips_set_personality_fp(state);					\
+									\
 	current->thread.abi = &mips_abi;				\
 } while (0)
 
@@ -291,44 +315,44 @@ do {									\
 #endif
 
 #ifdef CONFIG_MIPS32_O32
-#define __SET_PERSONALITY32_O32(ex)					\
+#define __SET_PERSONALITY32_O32(ex, state)				\
 	do {								\
 		set_thread_flag(TIF_32BIT_REGS);			\
 		set_thread_flag(TIF_32BIT_ADDR);			\
 									\
-		if (!((ex).e_flags & EF_MIPS_FP64))			\
-			set_thread_flag(TIF_32BIT_FPREGS);		\
+		mips_set_personality_fp(state);				\
 									\
 		current->thread.abi = &mips_abi_32;			\
 	} while (0)
 #else
-#define __SET_PERSONALITY32_O32(ex)					\
+#define __SET_PERSONALITY32_O32(ex, state)				\
 	do { } while (0)
 #endif
 
 #ifdef CONFIG_MIPS32_COMPAT
-#define __SET_PERSONALITY32(ex)						\
+#define __SET_PERSONALITY32(ex, state)					\
 do {									\
 	if ((((ex).e_flags & EF_MIPS_ABI2) != 0) &&			\
 	     ((ex).e_flags & EF_MIPS_ABI) == 0)				\
 		__SET_PERSONALITY32_N32();				\
 	else								\
-		__SET_PERSONALITY32_O32(ex);                            \
+		__SET_PERSONALITY32_O32(ex, state);			\
 } while (0)
 #else
-#define __SET_PERSONALITY32(ex) do { } while (0)
+#define __SET_PERSONALITY32(ex, state) do { } while (0)
 #endif
 
-#define SET_PERSONALITY(ex)						\
+#define SET_PERSONALITY2(ex, state)					\
 do {									\
 	unsigned int p;							\
 									\
 	clear_thread_flag(TIF_32BIT_REGS);				\
 	clear_thread_flag(TIF_32BIT_FPREGS);				\
+	clear_thread_flag(TIF_HYBRID_FPREGS);				\
 	clear_thread_flag(TIF_32BIT_ADDR);				\
 									\
 	if ((ex).e_ident[EI_CLASS] == ELFCLASS32)			\
-		__SET_PERSONALITY32(ex);				\
+		__SET_PERSONALITY32(ex, state);				\
 	else								\
 		current->thread.abi = &mips_abi;			\
 									\
@@ -390,4 +414,24 @@ struct mm_struct;
 extern unsigned long arch_randomize_brk(struct mm_struct *mm);
 #define arch_randomize_brk arch_randomize_brk
 
+struct arch_elf_state {
+	int fp_abi;
+	int interp_fp_abi;
+	int overall_abi;
+};
+
+#define INIT_ARCH_ELF_STATE {			\
+	.fp_abi = -1,				\
+	.interp_fp_abi = -1,			\
+	.overall_abi = -1,			\
+}
+
+extern int arch_elf_pt_proc(void *ehdr, void *phdr, struct file *elf,
+			    bool is_interp, struct arch_elf_state *state);
+
+extern int arch_check_elf(void *ehdr, bool has_interpreter,
+			  struct arch_elf_state *state);
+
+extern void mips_set_personality_fp(struct arch_elf_state *state);
+
 #endif /* _ASM_ELF_H */

arch/mips/include/asm/fpu.h

@@ -36,14 +36,16 @@ extern void _restore_fp(struct task_struct *);
 
 /*
  * This enum specifies a mode in which we want the FPU to operate, for cores
- * which implement the Status.FR bit. Note that FPU_32BIT & FPU_64BIT
- * purposefully have the values 0 & 1 respectively, so that an integer value
- * of Status.FR can be trivially casted to the corresponding enum fpu_mode.
+ * which implement the Status.FR bit. Note that the bottom bit of the value
+ * purposefully matches the desired value of the Status.FR bit.
  */
 enum fpu_mode {
 	FPU_32BIT = 0,		/* FR = 0 */
-	FPU_64BIT,		/* FR = 1 */
+	FPU_64BIT,		/* FR = 1, FRE = 0 */
 	FPU_AS_IS,
+	FPU_HYBRID,		/* FR = 1, FRE = 1 */
+
+#define FPU_FR_MASK		0x1
 };
 
 static inline int __enable_fpu(enum fpu_mode mode)
@@ -57,6 +59,14 @@ static inline int __enable_fpu(enum fpu_mode mode)
 		enable_fpu_hazard();
 		return 0;
 
+	case FPU_HYBRID:
+		if (!cpu_has_fre)
+			return SIGFPE;
+
+		/* set FRE */
+		write_c0_config5(read_c0_config5() | MIPS_CONF5_FRE);
+		goto fr_common;
+
 	case FPU_64BIT:
 #if !(defined(CONFIG_CPU_MIPS32_R2) || defined(CONFIG_64BIT))
 		/* we only have a 32-bit FPU */
@@ -64,8 +74,11 @@ static inline int __enable_fpu(enum fpu_mode mode)
 #endif
 		/* fall through */
 	case FPU_32BIT:
+		/* clear FRE */
+		write_c0_config5(read_c0_config5() & ~MIPS_CONF5_FRE);
+fr_common:
 		/* set CU1 & change FR appropriately */
-		fr = (int)mode;
+		fr = (int)mode & FPU_FR_MASK;
 		change_c0_status(ST0_CU1 | ST0_FR, ST0_CU1 | (fr ? ST0_FR : 0));
 		enable_fpu_hazard();
 
@@ -102,13 +115,17 @@ static inline int __own_fpu(void)
 	enum fpu_mode mode;
 	int ret;
 
-	mode = !test_thread_flag(TIF_32BIT_FPREGS);
+	if (test_thread_flag(TIF_HYBRID_FPREGS))
+		mode = FPU_HYBRID;
+	else
+		mode = !test_thread_flag(TIF_32BIT_FPREGS);
+
 	ret = __enable_fpu(mode);
 	if (ret)
 		return ret;
 
 	KSTK_STATUS(current) |= ST0_CU1;
-	if (mode == FPU_64BIT)
+	if (mode == FPU_64BIT || mode == FPU_HYBRID)
 		KSTK_STATUS(current) |= ST0_FR;
 	else /* mode == FPU_32BIT */
 		KSTK_STATUS(current) &= ~ST0_FR;
@@ -166,8 +183,24 @@ static inline int init_fpu(void)
 
 	if (cpu_has_fpu) {
 		ret = __own_fpu();
-		if (!ret)
+		if (!ret) {
+			unsigned int config5 = read_c0_config5();
+
+			/*
+			 * Ensure FRE is clear whilst running _init_fpu, since
+			 * single precision FP instructions are used. If FRE
+			 * was set then we'll just end up initialising all 32
+			 * 64b registers.
+			 */
+			write_c0_config5(config5 & ~MIPS_CONF5_FRE);
+			enable_fpu_hazard();
+
 			_init_fpu();
+
+			/* Restore FRE */
+			write_c0_config5(config5);
+			enable_fpu_hazard();
+		}
 	} else
 		fpu_emulator_init_fpu();
 

arch/mips/include/asm/futex.h

@@ -14,6 +14,7 @@
 #include <linux/uaccess.h>
 #include <asm/asm-eva.h>
 #include <asm/barrier.h>
+#include <asm/compiler.h>
 #include <asm/errno.h>
 #include <asm/war.h>
 
@@ -32,6 +33,7 @@
 		"	beqzl	$1, 1b				\n"	\
 		__WEAK_LLSC_MB						\
 		"3:						\n"	\
+		"	.insn					\n"	\
 		"	.set	pop				\n"	\
 		"	.set	mips0				\n"	\
 		"	.section .fixup,\"ax\"			\n"	\
@@ -42,8 +44,10 @@
 		"	"__UA_ADDR "\t1b, 4b			\n"	\
 		"	"__UA_ADDR "\t2b, 4b			\n"	\
 		"	.previous				\n"	\
-		: "=r" (ret), "=&r" (oldval), "=R" (*uaddr)		\
-		: "0" (0), "R" (*uaddr), "Jr" (oparg), "i" (-EFAULT)	\
+		: "=r" (ret), "=&r" (oldval),				\
+		  "=" GCC_OFF12_ASM() (*uaddr)				\
+		: "0" (0), GCC_OFF12_ASM() (*uaddr), "Jr" (oparg),	\
+		  "i" (-EFAULT)						\
 		: "memory");						\
 	} else if (cpu_has_llsc) {					\
 		__asm__ __volatile__(					\
@@ -58,6 +62,7 @@
 		"	beqz	$1, 1b				\n"	\
 		__WEAK_LLSC_MB						\
 		"3:						\n"	\
+		"	.insn					\n"	\
 		"	.set	pop				\n"	\
 		"	.set	mips0				\n"	\
 		"	.section .fixup,\"ax\"			\n"	\
@@ -68,8 +73,10 @@
 		"	"__UA_ADDR "\t1b, 4b			\n"	\
 		"	"__UA_ADDR "\t2b, 4b			\n"	\
 		"	.previous				\n"	\
-		: "=r" (ret), "=&r" (oldval), "=R" (*uaddr)		\
-		: "0" (0), "R" (*uaddr), "Jr" (oparg), "i" (-EFAULT)	\
+		: "=r" (ret), "=&r" (oldval),				\
+		  "=" GCC_OFF12_ASM() (*uaddr)				\
+		: "0" (0), GCC_OFF12_ASM() (*uaddr), "Jr" (oparg),	\
+		  "i" (-EFAULT)						\
 		: "memory");						\
 	} else								\
 		ret = -ENOSYS;						\
@@ -157,6 +164,7 @@ futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr,
 		"	beqzl	$1, 1b					\n"
 		__WEAK_LLSC_MB
 		"3:							\n"
+		"	.insn						\n"
 		"	.set	pop					\n"
 		"	.section .fixup,\"ax\"				\n"
 		"4:	li	%0, %6					\n"
@@ -166,8 +174,9 @@ futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr,
 		"	"__UA_ADDR "\t1b, 4b				\n"
 		"	"__UA_ADDR "\t2b, 4b				\n"
 		"	.previous					\n"
-		: "+r" (ret), "=&r" (val), "=R" (*uaddr)
-		: "R" (*uaddr), "Jr" (oldval), "Jr" (newval), "i" (-EFAULT)
+		: "+r" (ret), "=&r" (val), "=" GCC_OFF12_ASM() (*uaddr)
+		: GCC_OFF12_ASM() (*uaddr), "Jr" (oldval), "Jr" (newval),
+		  "i" (-EFAULT)
 		: "memory");
 	} else if (cpu_has_llsc) {
 		__asm__ __volatile__(
@@ -184,6 +193,7 @@ futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr,
 		"	beqz	$1, 1b					\n"
 		__WEAK_LLSC_MB
 		"3:							\n"
+		"	.insn						\n"
 		"	.set	pop					\n"
 		"	.section .fixup,\"ax\"				\n"
 		"4:	li	%0, %6					\n"
@@ -193,8 +203,9 @@ futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr,
 		"	"__UA_ADDR "\t1b, 4b				\n"
 		"	"__UA_ADDR "\t2b, 4b				\n"
 		"	.previous					\n"
-		: "+r" (ret), "=&r" (val), "=R" (*uaddr)
-		: "R" (*uaddr), "Jr" (oldval), "Jr" (newval), "i" (-EFAULT)
+		: "+r" (ret), "=&r" (val), "=" GCC_OFF12_ASM() (*uaddr)
+		: GCC_OFF12_ASM() (*uaddr), "Jr" (oldval), "Jr" (newval),
+		  "i" (-EFAULT)
 		: "memory");
 	} else
 		return -ENOSYS;

arch/mips/include/asm/hpet.h

+#ifndef _ASM_HPET_H
+#define _ASM_HPET_H
+
+#ifdef CONFIG_RS780_HPET
+
+#define HPET_MMAP_SIZE		1024
+
+#define HPET_ID			0x000
+#define HPET_PERIOD		0x004
+#define HPET_CFG		0x010
+#define HPET_STATUS		0x020
+#define HPET_COUNTER	0x0f0
+
+#define HPET_Tn_CFG(n)		(0x100 + 0x20 * n)
+#define HPET_Tn_CMP(n)		(0x108 + 0x20 * n)
+#define HPET_Tn_ROUTE(n)	(0x110 + 0x20 * n)
+
+#define HPET_T0_IRS		0x001
+#define HPET_T1_IRS		0x002
+#define HPET_T3_IRS		0x004
+
+#define HPET_T0_CFG		0x100
+#define HPET_T0_CMP		0x108
+#define HPET_T0_ROUTE	0x110
+#define HPET_T1_CFG		0x120
+#define HPET_T1_CMP		0x128
+#define HPET_T1_ROUTE	0x130
+#define HPET_T2_CFG		0x140
+#define HPET_T2_CMP		0x148
+#define HPET_T2_ROUTE	0x150
+
+#define HPET_ID_REV			0x000000ff
+#define HPET_ID_NUMBER		0x00001f00
+#define HPET_ID_64BIT		0x00002000
+#define HPET_ID_LEGSUP		0x00008000
+#define HPET_ID_VENDOR		0xffff0000
+#define HPET_ID_NUMBER_SHIFT	8
+#define HPET_ID_VENDOR_SHIFT	16
+
+#define HPET_CFG_ENABLE		0x001
+#define HPET_CFG_LEGACY		0x002
+#define HPET_LEGACY_8254		2
+#define HPET_LEGACY_RTC		8
+
+#define HPET_TN_LEVEL		0x0002
+#define HPET_TN_ENABLE		0x0004
+#define HPET_TN_PERIODIC	0x0008
+#define HPET_TN_PERIODIC_CAP	0x0010
+#define HPET_TN_64BIT_CAP	0x0020
+#define HPET_TN_SETVAL		0x0040
+#define HPET_TN_32BIT		0x0100
+#define HPET_TN_ROUTE		0x3e00
+#define HPET_TN_FSB			0x4000
+#define HPET_TN_FSB_CAP		0x8000
+#define HPET_TN_ROUTE_SHIFT	9
+
+/* Max HPET Period is 10^8 femto sec as in HPET spec */
+#define HPET_MAX_PERIOD		100000000UL
+/*
+ * Min HPET period is 10^5 femto sec just for safety. If it is less than this,
+ * then 32 bit HPET counter wrapsaround in less than 0.5 sec.
+ */
+#define HPET_MIN_PERIOD		100000UL
+
+#define HPET_ADDR		0x20000
+#define HPET_MMIO_ADDR	0x90000e0000020000
+#define HPET_FREQ		14318780
+#define HPET_COMPARE_VAL	((HPET_FREQ + HZ / 2) / HZ)
+#define HPET_T0_IRQ		0
+
+extern void __init setup_hpet_timer(void);
+#endif /* CONFIG_RS780_HPET */
+#endif /* _ASM_HPET_H */

arch/mips/include/asm/io.h

@@ -167,7 +167,7 @@ static inline void * isa_bus_to_virt(unsigned long address)
  */
 #define page_to_phys(page)	((dma_addr_t)page_to_pfn(page) << PAGE_SHIFT)
 
-extern void __iomem * __ioremap(phys_t offset, phys_t size, unsigned long flags);
+extern void __iomem * __ioremap(phys_addr_t offset, phys_addr_t size, unsigned long flags);
 extern void __iounmap(const volatile void __iomem *addr);
 
 #ifndef CONFIG_PCI
@@ -175,7 +175,7 @@ struct pci_dev;
 static inline void pci_iounmap(struct pci_dev *dev, void __iomem *addr) {}
 #endif
 
-static inline void __iomem * __ioremap_mode(phys_t offset, unsigned long size,
+static inline void __iomem * __ioremap_mode(phys_addr_t offset, unsigned long size,
 	unsigned long flags)
 {
 	void __iomem *addr = plat_ioremap(offset, size, flags);
@@ -183,7 +183,7 @@ static inline void __iomem * __ioremap_mode(phys_t offset, unsigned long size,
 	if (addr)
 		return addr;
 
-#define __IS_LOW512(addr) (!((phys_t)(addr) & (phys_t) ~0x1fffffffULL))
+#define __IS_LOW512(addr) (!((phys_addr_t)(addr) & (phys_addr_t) ~0x1fffffffULL))
 
 	if (cpu_has_64bit_addresses) {
 		u64 base = UNCAC_BASE;
@@ -197,7 +197,7 @@ static inline void __iomem * __ioremap_mode(phys_t offset, unsigned long size,
 		return (void __iomem *) (unsigned long) (base + offset);
 	} else if (__builtin_constant_p(offset) &&
 		   __builtin_constant_p(size) && __builtin_constant_p(flags)) {
-		phys_t phys_addr, last_addr;
+		phys_addr_t phys_addr, last_addr;
 
 		phys_addr = fixup_bigphys_addr(offset, size);
 

arch/mips/include/asm/irq.h

@@ -48,4 +48,7 @@ extern int cp0_compare_irq;
 extern int cp0_compare_irq_shift;
 extern int cp0_perfcount_irq;
 
+void arch_trigger_all_cpu_backtrace(bool);
+#define arch_trigger_all_cpu_backtrace arch_trigger_all_cpu_backtrace
+
 #endif /* _ASM_IRQ_H */

arch/mips/include/asm/irq_cpu.h

@@ -19,8 +19,8 @@ extern void rm9k_cpu_irq_init(void);
 
 #ifdef CONFIG_IRQ_DOMAIN
 struct device_node;
-extern int mips_cpu_intc_init(struct device_node *of_node,
-			      struct device_node *parent);
+extern int mips_cpu_irq_of_init(struct device_node *of_node,
+				struct device_node *parent);
 #endif
 
 #endif /* _ASM_IRQ_CPU_H */

arch/mips/include/asm/mach-ath25/gpio.h

+#ifndef __ASM_MACH_ATH25_GPIO_H
+#define __ASM_MACH_ATH25_GPIO_H
+
+#include <asm-generic/gpio.h>
+
+#define gpio_get_value __gpio_get_value
+#define gpio_set_value __gpio_set_value
+#define gpio_cansleep __gpio_cansleep
+#define gpio_to_irq __gpio_to_irq
+
+static inline int irq_to_gpio(unsigned irq)
+{
+	return -EINVAL;
+}
+
+#endif	/* __ASM_MACH_ATH25_GPIO_H */

arch/mips/include/asm/mach-generic/ioremap.h

@@ -15,12 +15,12 @@
  * Allow physical addresses to be fixed up to help peripherals located
  * outside the low 32-bit range -- generic pass-through version.
  */
-static inline phys_t fixup_bigphys_addr(phys_t phys_addr, phys_t size)
+static inline phys_addr_t fixup_bigphys_addr(phys_addr_t phys_addr, phys_addr_t size)
 {
 	return phys_addr;
 }
 
-static inline void __iomem *plat_ioremap(phys_t offset, unsigned long size,
+static inline void __iomem *plat_ioremap(phys_addr_t offset, unsigned long size,
 	unsigned long flags)
 {
 	return NULL;