Merge tag 'mips_5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux

Pull MIPS updates from Paul Burton:
 "Main MIPS changes:

   - boot_mem_map is removed, providing a nice cleanup made possible by
     the recent removal of bootmem.

   - Some fixes to atomics, in general providing compiler barriers for
     smp_mb__{before,after}_atomic plus fixes specific to Loongson CPUs
     or MIPS32 systems using cmpxchg64().

   - Conversion to the new generic VDSO infrastructure courtesy of
     Vincenzo Frascino.

   - Removal of undefined behavior in set_io_port_base(), fixing the
     behavior of some MIPS kernel configurations when built with recent
     clang versions.

   - Initial MIPS32 huge page support, functional on at least Ingenic
     SoCs.

   - pte_special() is now supported for some configurations, allowing
     among other things generic fast GUP to be used.

   - Miscellaneous fixes & cleanups.

  And platform specific changes:

   - Major improvements to Ingenic SoC support from Paul Cercueil,
     mostly enabled by the inclusion of the new TCU (timer-counter unit)
     drivers he's spent a very patient year or so working on. Plus some
     fixes for X1000 SoCs from Zhou Yanjie.

   - Netgear R6200 v1 systems are now supported by the bcm47xx platform.

   - DT updates for BMIPS, Lantiq & Microsemi Ocelot systems"

* tag 'mips_5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux: (89 commits)
  MIPS: Detect bad _PFN_SHIFT values
  MIPS: Disable pte_special() for MIPS32 with RiXi
  MIPS: ralink: deactivate PCI support for SOC_MT7621
  mips: compat: vdso: Use legacy syscalls as fallback
  MIPS: Drop Loongson _CACHE_* definitions
  MIPS: tlbex: Remove cpu_has_local_ebase
  MIPS: tlbex: Simplify r3k check
  MIPS: Select R3k-style TLB in Kconfig
  MIPS: PCI: refactor ioc3 special handling
  mips: remove ioremap_cachable
  mips/atomic: Fix smp_mb__{before,after}_atomic()
  mips/atomic: Fix loongson_llsc_mb() wreckage
  mips/atomic: Fix cmpxchg64 barriers
  MIPS: Octeon: remove duplicated include from dma-octeon.c
  firmware: bcm47xx_nvram: Allow COMPILE_TEST
  firmware: bcm47xx_nvram: Correct size_t printf format
  MIPS: Treat Loongson Extensions as ASEs
  MIPS: Remove dev_err() usage after platform_get_irq()
  MIPS: dts: mscc: describe the PTP ready interrupt
  MIPS: dts: mscc: describe the PTP register range
  ...

Documentation/devicetree/bindings/pwm/ingenic,jz47xx-pwm.txt

-Ingenic JZ47xx PWM Controller
-=============================
-
-Required properties:
-- compatible: Should be "ingenic,jz4740-pwm"
-- #pwm-cells: Should be 3. See pwm.txt in this directory for a description
-  of the cells format.
-- clocks : phandle to the external clock.
-- clock-names : Should be "ext".
-
-
-Example:
-
-	pwm: pwm@10002000 {
-		compatible = "ingenic,jz4740-pwm";
-		reg = <0x10002000 0x1000>;
-
-		#pwm-cells = <3>;
-
-		clocks = <&ext>;
-		clock-names = "ext";
-	};

Documentation/devicetree/bindings/timer/ingenic,tcu.txt

+Ingenic JZ47xx SoCs Timer/Counter Unit devicetree bindings
+==========================================================
+
+For a description of the TCU hardware and drivers, have a look at
+Documentation/mips/ingenic-tcu.txt.
+
+Required properties:
+
+- compatible: Must be one of:
+  * ingenic,jz4740-tcu
+  * ingenic,jz4725b-tcu
+  * ingenic,jz4770-tcu
+  followed by "simple-mfd".
+- reg: Should be the offset/length value corresponding to the TCU registers
+- clocks: List of phandle & clock specifiers for clocks external to the TCU.
+  The "pclk", "rtc" and "ext" clocks should be provided. The "tcu" clock
+  should be provided if the SoC has it.
+- clock-names: List of name strings for the external clocks.
+- #clock-cells: Should be <1>;
+  Clock consumers specify this argument to identify a clock. The valid values
+  may be found in <dt-bindings/clock/ingenic,tcu.h>.
+- interrupt-controller : Identifies the node as an interrupt controller
+- #interrupt-cells : Specifies the number of cells needed to encode an
+  interrupt source. The value should be 1.
+- interrupts : Specifies the interrupt the controller is connected to.
+
+Optional properties:
+
+- ingenic,pwm-channels-mask: Bitmask of TCU channels reserved for PWM use.
+  Default value is 0xfc.
+
+
+Children nodes
+==========================================================
+
+
+PWM node:
+---------
+
+Required properties:
+
+- compatible: Must be one of:
+  * ingenic,jz4740-pwm
+  * ingenic,jz4725b-pwm
+- #pwm-cells: Should be 3. See ../pwm/pwm.txt for a description of the cell
+  format.
+- clocks: List of phandle & clock specifiers for the TCU clocks.
+- clock-names: List of name strings for the TCU clocks.
+
+
+Watchdog node:
+--------------
+
+Required properties:
+
+- compatible: Must be "ingenic,jz4740-watchdog"
+- clocks: phandle to the WDT clock
+- clock-names: should be "wdt"
+
+
+OS Timer node:
+---------
+
+Required properties:
+
+- compatible: Must be one of:
+  * ingenic,jz4725b-ost
+  * ingenic,jz4770-ost
+- clocks: phandle to the OST clock
+- clock-names: should be "ost"
+- interrupts : Specifies the interrupt the OST is connected to.
+
+
+Example
+==========================================================
+
+#include <dt-bindings/clock/jz4770-cgu.h>
+#include <dt-bindings/clock/ingenic,tcu.h>
+
+/ {
+	tcu: timer@10002000 {
+		compatible = "ingenic,jz4770-tcu", "simple-mfd";
+		reg = <0x10002000 0x1000>;
+		#address-cells = <1>;
+		#size-cells = <1>;
+		ranges = <0x0 0x10002000 0x1000>;
+
+		#clock-cells = <1>;
+
+		clocks = <&cgu JZ4770_CLK_RTC
+			  &cgu JZ4770_CLK_EXT
+			  &cgu JZ4770_CLK_PCLK>;
+		clock-names = "rtc", "ext", "pclk";
+
+		interrupt-controller;
+		#interrupt-cells = <1>;
+
+		interrupt-parent = <&intc>;
+		interrupts = <27 26 25>;
+
+		watchdog: watchdog@0 {
+			compatible = "ingenic,jz4740-watchdog";
+			reg = <0x0 0xc>;
+
+			clocks = <&tcu TCU_CLK_WDT>;
+			clock-names = "wdt";
+		};
+
+		pwm: pwm@40 {
+			compatible = "ingenic,jz4740-pwm";
+			reg = <0x40 0x80>;
+
+			#pwm-cells = <3>;
+
+			clocks = <&tcu TCU_CLK_TIMER0
+				  &tcu TCU_CLK_TIMER1
+				  &tcu TCU_CLK_TIMER2
+				  &tcu TCU_CLK_TIMER3
+				  &tcu TCU_CLK_TIMER4
+				  &tcu TCU_CLK_TIMER5
+				  &tcu TCU_CLK_TIMER6
+				  &tcu TCU_CLK_TIMER7>;
+			clock-names = "timer0", "timer1", "timer2", "timer3",
+				      "timer4", "timer5", "timer6", "timer7";
+		};
+
+		ost: timer@e0 {
+			compatible = "ingenic,jz4770-ost";
+			reg = <0xe0 0x20>;
+
+			clocks = <&tcu TCU_CLK_OST>;
+			clock-names = "ost";
+
+			interrupts = <15>;
+		};
+	};
+};

Documentation/devicetree/bindings/watchdog/ingenic,jz4740-wdt.txt

-Ingenic Watchdog Timer (WDT) Controller for JZ4740 & JZ4780
-
-Required properties:
-compatible: "ingenic,jz4740-watchdog" or "ingenic,jz4780-watchdog"
-reg: Register address and length for watchdog registers
-clocks: phandle to the RTC clock
-clock-names: should be "rtc"
-
-Example:
-
-watchdog: jz4740-watchdog@10002000 {
-	compatible = "ingenic,jz4740-watchdog";
-	reg = <0x10002000 0x10>;
-
-	clocks = <&cgu JZ4740_CLK_RTC>;
-	clock-names = "rtc";
-};

Documentation/index.rst

@@ -144,16 +144,15 @@ implementation.
 .. toctree::
    :maxdepth: 2
 
-   sh/index
    arm/index
    arm64/index
    ia64/index
    m68k/index
-   powerpc/index
    mips/index
    nios2/nios2
    openrisc/index
    parisc/index
+   powerpc/index
    riscv/index
    s390/index
    sh/index

Documentation/mips/index.rst

 .. SPDX-License-Identifier: GPL-2.0
 
-=================
-MIPS architecture
-=================
+===========================
+MIPS-specific Documentation
+===========================
 
 .. toctree::
    :maxdepth: 2
+   :numbered:
+
+   ingenic-tcu
 
    au1xxx_ide
 

Documentation/mips/ingenic-tcu.rst

+.. SPDX-License-Identifier: GPL-2.0
+
+===============================================
+Ingenic JZ47xx SoCs Timer/Counter Unit hardware
+===============================================
+
+The Timer/Counter Unit (TCU) in Ingenic JZ47xx SoCs is a multi-function
+hardware block. It features up to to eight channels, that can be used as
+counters, timers, or PWM.
+
+- JZ4725B, JZ4750, JZ4755 only have six TCU channels. The other SoCs all
+  have eight channels.
+
+- JZ4725B introduced a separate channel, called Operating System Timer
+  (OST). It is a 32-bit programmable timer. On JZ4760B and above, it is
+  64-bit.
+
+- Each one of the TCU channels has its own clock, which can be reparented to three
+  different clocks (pclk, ext, rtc), gated, and reclocked, through their TCSR register.
+
+    - The watchdog and OST hardware blocks also feature a TCSR register with the same
+      format in their register space.
+    - The TCU registers used to gate/ungate can also gate/ungate the watchdog and
+      OST clocks.
+
+- Each TCU channel works in one of two modes:
+
+    - mode TCU1: channels cannot work in sleep mode, but are easier to
+      operate.
+    - mode TCU2: channels can work in sleep mode, but the operation is a bit
+      more complicated than with TCU1 channels.
+
+- The mode of each TCU channel depends on the SoC used:
+
+    - On the oldest SoCs (up to JZ4740), all of the eight channels operate in
+      TCU1 mode.
+    - On JZ4725B, channel 5 operates as TCU2, the others operate as TCU1.
+    - On newest SoCs (JZ4750 and above), channels 1-2 operate as TCU2, the
+      others operate as TCU1.
+
+- Each channel can generate an interrupt. Some channels share an interrupt
+  line, some don't, and this changes between SoC versions:
+
+    - on older SoCs (JZ4740 and below), channel 0 and channel 1 have their
+      own interrupt line; channels 2-7 share the last interrupt line.
+    - On JZ4725B, channel 0 has its own interrupt; channels 1-5 share one
+      interrupt line; the OST uses the last interrupt line.
+    - on newer SoCs (JZ4750 and above), channel 5 has its own interrupt;
+      channels 0-4 and (if eight channels) 6-7 all share one interrupt line;
+      the OST uses the last interrupt line.
+
+Implementation
+==============
+
+The functionalities of the TCU hardware are spread across multiple drivers:
+
+===========  =====
+clocks       drivers/clk/ingenic/tcu.c
+interrupts   drivers/irqchip/irq-ingenic-tcu.c
+timers       drivers/clocksource/ingenic-timer.c
+OST          drivers/clocksource/ingenic-ost.c
+PWM          drivers/pwm/pwm-jz4740.c
+watchdog     drivers/watchdog/jz4740_wdt.c
+===========  =====
+
+Because various functionalities of the TCU that belong to different drivers
+and frameworks can be controlled from the same registers, all of these
+drivers access their registers through the same regmap.
+
+For more information regarding the devicetree bindings of the TCU drivers,
+have a look at Documentation/devicetree/bindings/mfd/ingenic,tcu.txt.

arch/mips/Kconfig

@@ -22,6 +22,7 @@ config MIPS
 	select GENERIC_CLOCKEVENTS
 	select GENERIC_CMOS_UPDATE
 	select GENERIC_CPU_AUTOPROBE
+	select GENERIC_GETTIMEOFDAY
 	select GENERIC_IOMAP
 	select GENERIC_IRQ_PROBE
 	select GENERIC_IRQ_SHOW
@@ -43,7 +44,7 @@ config MIPS
 	select HAVE_ARCH_MMAP_RND_COMPAT_BITS if MMU && COMPAT
 	select HAVE_ARCH_SECCOMP_FILTER
 	select HAVE_ARCH_TRACEHOOK
-	select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES && 64BIT
+	select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES
 	select HAVE_ASM_MODVERSIONS
 	select HAVE_EBPF_JIT if (!CPU_MICROMIPS)
 	select HAVE_CONTEXT_TRACKING
@@ -75,6 +76,7 @@ config MIPS
 	select HAVE_STACKPROTECTOR
 	select HAVE_SYSCALL_TRACEPOINTS
 	select HAVE_VIRT_CPU_ACCOUNTING_GEN if 64BIT || !SMP
+	select HAVE_GENERIC_VDSO
 	select IRQ_FORCED_THREADING
 	select ISA if EISA
 	select MODULES_USE_ELF_RELA if MODULES && 64BIT
@@ -83,6 +85,7 @@ config MIPS
 	select RTC_LIB
 	select SYSCTL_EXCEPTION_TRACE
 	select VIRT_TO_BUS
+	select ARCH_HAS_PTE_SPECIAL if !(32BIT && CPU_HAS_RIXI)
 
 menu "Machine selection"
 
@@ -385,6 +388,7 @@ config MACH_INGENIC
 	select SYS_SUPPORTS_32BIT_KERNEL
 	select SYS_SUPPORTS_LITTLE_ENDIAN
 	select SYS_SUPPORTS_ZBOOT_UART16550
+	select CPU_SUPPORTS_HUGEPAGES
 	select DMA_NONCOHERENT
 	select IRQ_MIPS_CPU
 	select PINCTRL
@@ -1231,7 +1235,7 @@ config SYS_SUPPORTS_LITTLE_ENDIAN
 
 config SYS_SUPPORTS_HUGETLBFS
 	bool
-	depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
+	depends on CPU_SUPPORTS_HUGEPAGES
 	default y
 
 config MIPS_HUGE_TLB_SUPPORT
@@ -1579,6 +1583,7 @@ config CPU_R3000
 	depends on SYS_HAS_CPU_R3000
 	select CPU_HAS_WB
 	select CPU_HAS_LOAD_STORE_LR
+	select CPU_R3K_TLB
 	select CPU_SUPPORTS_32BIT_KERNEL
 	select CPU_SUPPORTS_HIGHMEM
 	help
@@ -1594,6 +1599,7 @@ config CPU_TX39XX
 	depends on SYS_HAS_CPU_TX39XX
 	select CPU_SUPPORTS_32BIT_KERNEL
 	select CPU_HAS_LOAD_STORE_LR
+	select CPU_R3K_TLB
 
 config CPU_VR41XX
 	bool "R41xx"
@@ -1607,15 +1613,6 @@ config CPU_VR41XX
 	  kernel built with this option will not run on any other type of
 	  processor or vice versa.
 
-config CPU_R4300
-	bool "R4300"
-	depends on SYS_HAS_CPU_R4300
-	select CPU_SUPPORTS_32BIT_KERNEL
-	select CPU_SUPPORTS_64BIT_KERNEL
-	select CPU_HAS_LOAD_STORE_LR
-	help
-	  MIPS Technologies R4300-series processors.
-
 config CPU_R4X00
 	bool "R4x00"
 	depends on SYS_HAS_CPU_R4X00
@@ -1646,14 +1643,6 @@ config CPU_R5000
 	help
 	  MIPS Technologies R5000-series processors other than the Nevada.
 
-config CPU_R5432
-	bool "R5432"
-	depends on SYS_HAS_CPU_R5432
-	select CPU_SUPPORTS_32BIT_KERNEL
-	select CPU_SUPPORTS_64BIT_KERNEL
-	select CPU_SUPPORTS_HUGEPAGES
-	select CPU_HAS_LOAD_STORE_LR
-
 config CPU_R5500
 	bool "R5500"
 	depends on SYS_HAS_CPU_R5500
@@ -1675,16 +1664,6 @@ config CPU_NEVADA
 	help
 	  QED / PMC-Sierra RM52xx-series ("Nevada") processors.
 
-config CPU_R8000
-	bool "R8000"
-	depends on SYS_HAS_CPU_R8000
-	select CPU_HAS_PREFETCH
-	select CPU_HAS_LOAD_STORE_LR
-	select CPU_SUPPORTS_64BIT_KERNEL
-	help
-	  MIPS Technologies R8000 processors.  Note these processors are
-	  uncommon and the support for them is incomplete.
-
 config CPU_R10000
 	bool "R10000"
 	depends on SYS_HAS_CPU_R10000
@@ -1977,9 +1956,6 @@ config SYS_HAS_CPU_TX39XX
 config SYS_HAS_CPU_VR41XX
 	bool
 
-config SYS_HAS_CPU_R4300
-	bool
-
 config SYS_HAS_CPU_R4X00
 	bool
 
@@ -1989,18 +1965,12 @@ config SYS_HAS_CPU_TX49XX
 config SYS_HAS_CPU_R5000
 	bool
 
-config SYS_HAS_CPU_R5432
-	bool
-
 config SYS_HAS_CPU_R5500
 	bool
 
 config SYS_HAS_CPU_NEVADA
 	bool
 
-config SYS_HAS_CPU_R8000
-	bool
-
 config SYS_HAS_CPU_R10000
 	bool
 	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
@@ -2118,6 +2088,7 @@ config CPU_SUPPORTS_ADDRWINCFG
 	bool
 config CPU_SUPPORTS_HUGEPAGES
 	bool
+	depends on !(32BIT && (ARCH_PHYS_ADDR_T_64BIT || EVA))
 config CPU_SUPPORTS_UNCACHED_ACCELERATED
 	bool
 config MIPS_PGD_C0_CONTEXT
@@ -2200,13 +2171,13 @@ config PAGE_SIZE_4KB
 
 config PAGE_SIZE_8KB
 	bool "8kB"
-	depends on CPU_R8000 || CPU_CAVIUM_OCTEON
+	depends on CPU_CAVIUM_OCTEON
 	depends on !MIPS_VA_BITS_48
 	help
 	  Using 8kB page size will result in higher performance kernel at
 	  the price of higher memory consumption.  This option is available
-	  only on R8000 and cnMIPS processors.  Note that you will need a
-	  suitable Linux distribution to support this.
+	  only on cnMIPS processors.  Note that you will need a suitable Linux
+	  distribution to support this.
 
 config PAGE_SIZE_16KB
 	bool "16kB"
@@ -2297,7 +2268,7 @@ config CPU_HAS_PREFETCH
 
 config CPU_GENERIC_DUMP_TLB
 	bool
-	default y if !(CPU_R3000 || CPU_R8000 || CPU_TX39XX)
+	default y if !(CPU_R3000 || CPU_TX39XX)
 
 config MIPS_FP_SUPPORT
 	bool "Floating Point support" if EXPERT
@@ -2319,6 +2290,9 @@ config CPU_R2300_FPU
 	depends on MIPS_FP_SUPPORT
 	default y if CPU_R3000 || CPU_TX39XX
 
+config CPU_R3K_TLB
+	bool
+
 config CPU_R4K_FPU
 	bool
 	depends on MIPS_FP_SUPPORT
@@ -2326,7 +2300,7 @@ config CPU_R4K_FPU
 
 config CPU_R4K_CACHE_TLB
 	bool
-	default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
+	default y if !(CPU_R3K_TLB || CPU_SB1 || CPU_CAVIUM_OCTEON)
 
 config MIPS_MT_SMP
 	bool "MIPS MT SMP support (1 TC on each available VPE)"
@@ -2583,7 +2557,6 @@ config CPU_R4400_WORKAROUNDS
 config MIPS_ASID_SHIFT
 	int
 	default 6 if CPU_R3000 || CPU_TX39XX
-	default 4 if CPU_R8000
 	default 0
 
 config MIPS_ASID_BITS
@@ -3077,10 +3050,6 @@ config STACKTRACE_SUPPORT
 	bool
 	default y
 
-config HAVE_LATENCYTOP_SUPPORT
-	bool
-	default y
-
 config PGTABLE_LEVELS
 	int
 	default 4 if PAGE_SIZE_4KB && MIPS_VA_BITS_48

arch/mips/Makefile

@@ -163,7 +163,6 @@ cflags-y += -fno-stack-check
 #
 cflags-$(CONFIG_CPU_R3000)	+= -march=r3000
 cflags-$(CONFIG_CPU_TX39XX)	+= -march=r3900
-cflags-$(CONFIG_CPU_R4300)	+= -march=r4300 -Wa,--trap
 cflags-$(CONFIG_CPU_VR41XX)	+= -march=r4100 -Wa,--trap
 cflags-$(CONFIG_CPU_R4X00)	+= -march=r4600 -Wa,--trap
 cflags-$(CONFIG_CPU_TX49XX)	+= -march=r4600 -Wa,--trap
@@ -174,8 +173,6 @@ cflags-$(CONFIG_CPU_MIPS64_R1)	+= -march=mips64 -Wa,--trap
 cflags-$(CONFIG_CPU_MIPS64_R2)	+= -march=mips64r2 -Wa,--trap
 cflags-$(CONFIG_CPU_MIPS64_R6)	+= -march=mips64r6 -Wa,--trap
 cflags-$(CONFIG_CPU_R5000)	+= -march=r5000 -Wa,--trap
-cflags-$(CONFIG_CPU_R5432)	+= $(call cc-option,-march=r5400,-march=r5000) \
-			-Wa,--trap
 cflags-$(CONFIG_CPU_R5500)	+= $(call cc-option,-march=r5500,-march=r5000) \
 			-Wa,--trap
 cflags-$(CONFIG_CPU_NEVADA)	+= $(call cc-option,-march=rm5200,-march=r5000) \
@@ -186,7 +183,6 @@ cflags-$(CONFIG_CPU_SB1)	+= $(call cc-option,-march=sb1,-march=r5000) \
 			-Wa,--trap
 cflags-$(CONFIG_CPU_SB1)	+= $(call cc-option,-mno-mdmx)
 cflags-$(CONFIG_CPU_SB1)	+= $(call cc-option,-mno-mips3d)
-cflags-$(CONFIG_CPU_R8000)	+= -march=r8000 -Wa,--trap
 cflags-$(CONFIG_CPU_R10000)	+= $(call cc-option,-march=r10000,-march=r8000) \
 			-Wa,--trap
 cflags-$(CONFIG_CPU_CAVIUM_OCTEON) += $(call cc-option,-march=octeon) -Wa,--trap

arch/mips/bcm47xx/board.c

@@ -160,6 +160,7 @@ struct bcm47xx_board_type_list1 bcm47xx_board_list_board_id[] __initconst = {
 	{{BCM47XX_BOARD_LUXUL_XVW_P30_V1, "Luxul XVW-P30 V1"}, "luxul_xvwp30_v1"},
 	{{BCM47XX_BOARD_LUXUL_XWR_600_V1, "Luxul XWR-600 V1"}, "luxul_xwr600_v1"},
 	{{BCM47XX_BOARD_LUXUL_XWR_1750_V1, "Luxul XWR-1750 V1"}, "luxul_xwr1750_v1"},
+	{{BCM47XX_BOARD_NETGEAR_R6200_V1, "Netgear R6200 V1"}, "U12H192T00_NETGEAR"},
 	{{BCM47XX_BOARD_NETGEAR_WGR614V8, "Netgear WGR614 V8"}, "U12H072T00_NETGEAR"},
 	{{BCM47XX_BOARD_NETGEAR_WGR614V9, "Netgear WGR614 V9"}, "U12H094T00_NETGEAR"},
 	{{BCM47XX_BOARD_NETGEAR_WGR614_V10, "Netgear WGR614 V10"}, "U12H139T01_NETGEAR"},

arch/mips/bcm47xx/buttons.c

@@ -384,6 +384,13 @@ bcm47xx_buttons_motorola_wr850gv2v3[] __initconst = {
 
 /* Netgear */
 
+static const struct gpio_keys_button
+bcm47xx_buttons_netgear_r6200_v1[] __initconst = {
+	BCM47XX_GPIO_KEY(2, KEY_RFKILL),
+	BCM47XX_GPIO_KEY(3, KEY_RESTART),
+	BCM47XX_GPIO_KEY(4, KEY_WPS_BUTTON),
+};
+
 static const struct gpio_keys_button
 bcm47xx_buttons_netgear_wndr3400v1[] __initconst = {
 	BCM47XX_GPIO_KEY(4, KEY_RESTART),
@@ -664,6 +671,9 @@ int __init bcm47xx_buttons_register(void)
 		err = bcm47xx_copy_bdata(bcm47xx_buttons_motorola_wr850gv2v3);
 		break;
 
+	case BCM47XX_BOARD_NETGEAR_R6200_V1:
+		err = bcm47xx_copy_bdata(bcm47xx_buttons_netgear_r6200_v1);
+		break;
 	case BCM47XX_BOARD_NETGEAR_WNDR3400V1:
 		err = bcm47xx_copy_bdata(bcm47xx_buttons_netgear_wndr3400v1);
 		break;

arch/mips/boot/dts/brcm/bcm3368.dtsi

@@ -51,16 +51,22 @@ ubus {
 		compatible = "simple-bus";
 		ranges;
 
-		periph_cntl: syscon@fff8c000 {
+		clkctl: clock-controller@fff8c004 {
+			compatible = "brcm,bcm3368-clocks";
+			reg = <0xfff8c004 0x4>;
+			#clock-cells = <1>;
+		};
+
+		periph_cntl: syscon@fff8c008 {
 			compatible = "syscon";
-			reg = <0xfff8c000 0xc>;
+			reg = <0xfff8c000 0x4>;
 			native-endian;
 		};
 
 		reboot: syscon-reboot@fff8c008 {
 			compatible = "syscon-reboot";
 			regmap = <&periph_cntl>;
-			offset = <0x8>;
+			offset = <0x0>;
 			mask = <0x1>;
 		};
 

arch/mips/boot/dts/brcm/bcm63268.dtsi

@@ -51,16 +51,22 @@ ubus {
 		compatible = "simple-bus";
 		ranges;
 
-		periph_cntl: syscon@10000000 {
+		clkctl: clock-controller@10000004 {
+			compatible = "brcm,bcm63268-clocks";
+			reg = <0x10000004 0x4>;
+			#clock-cells = <1>;
+		};
+
+		periph_cntl: syscon@10000008 {
 			compatible = "syscon";
-			reg = <0x10000000 0x14>;
+			reg = <0x10000000 0xc>;
 			native-endian;
 		};
 
 		reboot: syscon-reboot@10000008 {
 			compatible = "syscon-reboot";
 			regmap = <&periph_cntl>;
-			offset = <0x8>;
+			offset = <0x0>;
 			mask = <0x1>;
 		};
 

arch/mips/boot/dts/brcm/bcm6328.dtsi

@@ -51,6 +51,12 @@ ubus {
 		compatible = "simple-bus";
 		ranges;
 
+		clkctl: clock-controller@10000004 {
+			compatible = "brcm,bcm6328-clocks";
+			reg = <0x10000004 0x4>;
+			#clock-cells = <1>;
+		};
+
 		periph_intc: interrupt-controller@10000020 {
 			compatible = "brcm,bcm6345-l1-intc";
 			reg = <0x10000020 0x10>,

arch/mips/boot/dts/brcm/bcm6358.dtsi

@@ -51,16 +51,22 @@ ubus {
 		compatible = "simple-bus";
 		ranges;
 
-		periph_cntl: syscon@fffe0000 {
+		clkctl: clock-controller@fffe0004 {
+			compatible = "brcm,bcm6358-clocks";
+			reg = <0xfffe0004 0x4>;
+			#clock-cells = <1>;
+		};
+
+		periph_cntl: syscon@fffe0008 {
 			compatible = "syscon";
-			reg = <0xfffe0000 0xc>;
+			reg = <0xfffe0000 0x4>;
 			native-endian;
 		};
 
 		reboot: syscon-reboot@fffe0008 {
 			compatible = "syscon-reboot";
 			regmap = <&periph_cntl>;
-			offset = <0x8>;
+			offset = <0x0>;
 			mask = <0x1>;
 		};
 

arch/mips/boot/dts/brcm/bcm6362.dtsi

@@ -51,16 +51,22 @@ ubus {
 		compatible = "simple-bus";
 		ranges;
 
-		periph_cntl: syscon@10000000 {
+		clkctl: clock-controller@10000004 {
+			compatible = "brcm,bcm6362-clocks";
+			reg = <0x10000004 0x4>;
+			#clock-cells = <1>;
+		};
+
+		periph_cntl: syscon@10000008 {
 			compatible = "syscon";
-			reg = <0x10000000 0x14>;
+			reg = <0x10000000 0xc>;
 			native-endian;
 		};
 
 		reboot: syscon-reboot@10000008 {
 			compatible = "syscon-reboot";
 			regmap = <&periph_cntl>;
-			offset = <0x8>;
+			offset = <0x0>;
 			mask = <0x1>;
 		};
 

arch/mips/boot/dts/brcm/bcm6368.dtsi

@@ -51,16 +51,22 @@ ubus {
 		compatible = "simple-bus";
 		ranges;
 
-		periph_cntl: syscon@10000000 {
+		clkctl: clock-controller@10000004 {
+			compatible = "brcm,bcm6368-clocks";
+			reg = <0x10000004 0x4>;
+			#clock-cells = <1>;
+		};
+
+		periph_cntl: syscon@100000008 {
 			compatible = "syscon";
-			reg = <0x10000000 0x14>;
+			reg = <0x10000000 0xc>;
 			native-endian;
 		};
 
 		reboot: syscon-reboot@10000008 {
 			compatible = "syscon-reboot";
 			regmap = <&periph_cntl>;
-			offset = <0x8>;
+			offset = <0x0>;
 			mask = <0x1>;
 		};
 

arch/mips/boot/dts/ingenic/ci20.dts

@@ -2,6 +2,7 @@
 /dts-v1/;
 
 #include "jz4780.dtsi"
+#include <dt-bindings/clock/ingenic,tcu.h>
 #include <dt-bindings/gpio/gpio.h>
 
 / {
@@ -238,3 +239,9 @@ pins_mmc1: mmc1 {
 		bias-disable;
 	};
 };
+
+&tcu {
+	/* 3 MHz for the system timer and clocksource */
+	assigned-clocks = <&tcu TCU_CLK_TIMER0>, <&tcu TCU_CLK_TIMER1>;
+	assigned-clock-rates = <3000000>, <3000000>;
+};

arch/mips/boot/dts/ingenic/gcw0.dts

@@ -2,6 +2,7 @@
 /dts-v1/;
 
 #include "jz4770.dtsi"
+#include <dt-bindings/clock/ingenic,tcu.h>
 
 / {
 	compatible = "gcw,zero", "ingenic,jz4770";
@@ -60,3 +61,12 @@ &uhc {
 	/* The WiFi module is connected to the UHC. */
 	status = "okay";
 };
+
+&tcu {
+	/* 750 kHz for the system timer and clocksource */
+	assigned-clocks = <&tcu TCU_CLK_TIMER0>, <&tcu TCU_CLK_TIMER2>;
+	assigned-clock-rates = <750000>, <750000>;
+
+	/* PWM1 is in use, so reserve channel #2 for the clocksource */
+	ingenic,pwm-channels-mask = <0xfa>;
+};

arch/mips/boot/dts/ingenic/jz4740.dtsi

@@ -53,6 +53,28 @@ watchdog: watchdog@10002000 {
 		clock-names = "rtc";
 	};
 
+	tcu: timer@10002000 {
+		compatible = "ingenic,jz4740-tcu", "simple-mfd";
+		reg = <0x10002000 0x1000>;
+		#address-cells = <1>;
+		#size-cells = <1>;
+		ranges = <0x0 0x10002000 0x1000>;
+
+		#clock-cells = <1>;
+
+		clocks = <&cgu JZ4740_CLK_RTC
+			  &cgu JZ4740_CLK_EXT
+			  &cgu JZ4740_CLK_PCLK
+			  &cgu JZ4740_CLK_TCU>;
+		clock-names = "rtc", "ext", "pclk", "tcu";
+
+		interrupt-controller;
+		#interrupt-cells = <1>;
+
+		interrupt-parent = <&intc>;
+		interrupts = <23 22 21>;
+	};
+
 	rtc_dev: rtc@10003000 {
 		compatible = "ingenic,jz4740-rtc";
 		reg = <0x10003000 0x40>;
@@ -132,6 +154,53 @@ gpd: gpio@3 {
 		};
 	};
 
+	aic: audio-controller@10020000 {
+		compatible = "ingenic,jz4740-i2s";
+		reg = <0x10020000 0x38>;
+
+		#sound-dai-cells = <0>;
+
+		interrupt-parent = <&intc>;
+		interrupts = <18>;
+
+		clocks = <&cgu JZ4740_CLK_AIC>,
+			 <&cgu JZ4740_CLK_I2S>,
+			 <&cgu JZ4740_CLK_EXT>,
+			 <&cgu JZ4740_CLK_PLL_HALF>;
+		clock-names = "aic", "i2s", "ext", "pll half";
+
+		dmas = <&dmac 25 0xffffffff>, <&dmac 24 0xffffffff>;
+		dma-names = "rx", "tx";
+	};
+
+	codec: audio-codec@100200a4 {
+		compatible = "ingenic,jz4740-codec";
+		reg = <0x10020080 0x8>;
+
+		#sound-dai-cells = <0>;
+
+		clocks = <&cgu JZ4740_CLK_AIC>;
+		clock-names = "aic";
+	};
+
+	mmc: mmc@10021000 {
+		compatible = "ingenic,jz4740-mmc";
+		reg = <0x10021000 0x1000>;
+
+		clocks = <&cgu JZ4740_CLK_MMC>;
+		clock-names = "mmc";
+
+		interrupt-parent = <&intc>;
+		interrupts = <14>;
+
+		dmas = <&dmac 27 0xffffffff>, <&dmac 26 0xffffffff>;
+		dma-names = "rx", "tx";
+
+		cap-sd-highspeed;
+		cap-mmc-highspeed;
+		cap-sdio-irq;
+	};
+
 	uart0: serial@10030000 {
 		compatible = "ingenic,jz4740-uart";
 		reg = <0x10030000 0x100>;
@@ -154,6 +223,38 @@ uart1: serial@10031000 {
 		clock-names = "baud", "module";
 	};
 
+	adc: adc@10070000 {
+		compatible = "ingenic,jz4740-adc";
+		reg = <0x10070000 0x30>;
+		#io-channel-cells = <1>;
+
+		clocks = <&cgu JZ4740_CLK_ADC>;
+		clock-names = "adc";
+
+		interrupt-parent = <&intc>;
+		interrupts = <12>;
+	};
+
+	nemc: memory-controller@13010000 {
+		compatible = "ingenic,jz4740-nemc";
+		reg = <0x13010000 0x54>;
+		#address-cells = <2>;
+		#size-cells = <1>;
+		ranges = <1 0 0x18000000 0x4000000
+			  2 0 0x14000000 0x4000000
+			  3 0 0x0c000000 0x4000000
+			  4 0 0x08000000 0x4000000>;
+
+		clocks = <&cgu JZ4740_CLK_MCLK>;
+	};
+
+	ecc: ecc-controller@13010100 {
+		compatible = "ingenic,jz4740-ecc";
+		reg = <0x13010100 0x2C>;
+
+		clocks = <&cgu JZ4740_CLK_MCLK>;
+	};
+
 	dmac: dma-controller@13020000 {
 		compatible = "ingenic,jz4740-dma";
 		reg = <0x13020000 0xbc
@@ -164,9 +265,6 @@ dmac: dma-controller@13020000 {
 		interrupts = <20>;
 
 		clocks = <&cgu JZ4740_CLK_DMA>;
-
-		/* Disable dmac until we have something that uses it */
-		status = "disabled";
 	};
 
 	uhc: uhc@13030000 {
@@ -182,4 +280,27 @@ uhc: uhc@13030000 {
 
 		status = "disabled";
 	};
+
+	udc: usb@13040000 {
+		compatible = "ingenic,jz4740-musb";
+		reg = <0x13040000 0x10000>;
+
+		interrupt-parent = <&intc>;
+		interrupts = <24>;
+		interrupt-names = "mc";
+
+		clocks = <&cgu JZ4740_CLK_UDC>;
+		clock-names = "udc";
+	};
+
+	lcd: lcd-controller@13050000 {
+		compatible = "ingenic,jz4740-lcd";
+		reg = <0x13050000 0x1000>;
+
+		interrupt-parent = <&intc>;
+		interrupts = <30>;
+
+		clocks = <&cgu JZ4740_CLK_LCD_PCLK>, <&cgu JZ4740_CLK_LCD>;
+		clock-names = "lcd_pclk", "lcd";
+	};
 };

arch/mips/boot/dts/ingenic/jz4770.dtsi

@@ -46,6 +46,27 @@ cgu: jz4770-cgu@10000000 {
 		#clock-cells = <1>;
 	};
 
+	tcu: timer@10002000 {
+		compatible = "ingenic,jz4770-tcu", "simple-mfd";
+		reg = <0x10002000 0x1000>;
+		#address-cells = <1>;
+		#size-cells = <1>;
+		ranges = <0x0 0x10002000 0x1000>;
+
+		#clock-cells = <1>;
+
+		clocks = <&cgu JZ4770_CLK_RTC
+			  &cgu JZ4770_CLK_EXT
+			  &cgu JZ4770_CLK_PCLK>;
+		clock-names = "rtc", "ext", "pclk";
+
+		interrupt-controller;
+		#interrupt-cells = <1>;
+
+		interrupt-parent = <&intc>;
+		interrupts = <27 26 25>;
+	};
+
 	pinctrl: pin-controller@10010000 {
 		compatible = "ingenic,jz4770-pinctrl";
 		reg = <0x10010000 0x600>;

arch/mips/boot/dts/ingenic/jz4780.dtsi

@@ -46,6 +46,29 @@ cgu: jz4780-cgu@10000000 {
 		#clock-cells = <1>;
 	};
 
+	tcu: timer@10002000 {
+		compatible = "ingenic,jz4780-tcu",
+			     "ingenic,jz4770-tcu",
+			     "simple-mfd";
+		reg = <0x10002000 0x1000>;
+		#address-cells = <1>;
+		#size-cells = <1>;
+		ranges = <0x0 0x10002000 0x1000>;
+
+		#clock-cells = <1>;
+
+		clocks = <&cgu JZ4780_CLK_RTCLK
+			  &cgu JZ4780_CLK_EXCLK
+			  &cgu JZ4780_CLK_PCLK>;
+		clock-names = "rtc", "ext", "pclk";
+
+		interrupt-controller;
+		#interrupt-cells = <1>;
+
+		interrupt-parent = <&intc>;
+		interrupts = <27 26 25>;
+	};
+
 	rtc_dev: rtc@10003000 {
 		compatible = "ingenic,jz4780-rtc";
 		reg = <0x10003000 0x4c>;

arch/mips/boot/dts/ingenic/qi_lb60.dts

@@ -3,12 +3,231 @@
 
 #include "jz4740.dtsi"
 
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/iio/adc/ingenic,adc.h>
+#include <dt-bindings/clock/ingenic,tcu.h>
+#include <dt-bindings/input/input.h>
+
+#define KEY_QI_QI	KEY_F13
+#define KEY_QI_UPRED	KEY_RIGHTALT
+#define KEY_QI_VOLUP	KEY_VOLUMEUP
+#define KEY_QI_VOLDOWN	KEY_VOLUMEDOWN
+#define KEY_QI_FN	KEY_LEFTCTRL
+
 / {
 	compatible = "qi,lb60", "ingenic,jz4740";
 
 	chosen {
 		stdout-path = &uart0;
 	};
+
+	vcc: regulator@0 {
+		compatible = "regulator-fixed";
+		regulator-name = "vcc";
+
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		regulator-always-on;
+	};
+
+	mmc_power: regulator@1 {
+		compatible = "regulator-fixed";
+		regulator-name = "mmc_vcc";
+		gpio = <&gpd 2 0>;
+
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+	};
+
+	amp_supply: regulator@2 {
+		compatible = "regulator-fixed";
+		regulator-name = "amp_supply";
+		gpio = <&gpd 4 0>;
+		enable-active-high;
+
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+	};
+
+	amp: analog-amplifier {
+		compatible = "simple-audio-amplifier";
+		enable-gpios = <&gpb 29 GPIO_ACTIVE_HIGH>;
+		VCC-supply = <&amp_supply>;
+	};
+
+	sound {
+		compatible = "simple-audio-card";
+
+		simple-audio-card,name = "QI LB60";
+		simple-audio-card,format = "i2s";
+
+		simple-audio-card,widgets =
+			"Speaker", "Speaker",
+			"Microphone", "Mic";
+		simple-audio-card,routing =
+			"MIC", "Mic",
+			"Speaker", "OUTL",
+			"Speaker", "OUTR",
+			"INL", "LOUT",
+			"INL", "ROUT";
+
+		simple-audio-card,aux-devs = <&amp>;
+
+		simple-audio-card,bitclock-master = <&dai_codec>;
+		simple-audio-card,frame-master = <&dai_codec>;
+
+		dai_cpu: simple-audio-card,cpu {
+			sound-dai = <&aic>;
+		};
+
+		dai_codec: simple-audio-card,codec {
+			sound-dai = <&codec>;
+		};
+	};
+
+	keys {
+		compatible = "gpio-keys";
+
+		key {
+			label = "Power";
+			wakeup-source;
+			linux,code = <KEY_POWER>;
+			gpios = <&gpd 29 GPIO_ACTIVE_LOW>;
+		};
+	};
+
+	keyboard {
+		compatible = "gpio-matrix-keypad";
+
+		col-scan-delay-us = <10>;
+		debounce-delay-ms = <10>;
+		wakeup-source;
+
+		row-gpios = <&gpd 18 0 &gpd 19 0 &gpd 20 0 &gpd 21 0
+			     &gpd 22 0 &gpd 23 0 &gpd 24 0 &gpd 26 0>;
+		col-gpios = <&gpc 10 0 &gpc 11 0 &gpc 12 0 &gpc 13 0
+			     &gpc 14 0 &gpc 15 0 &gpc 16 0 &gpc 17 0>;
+		gpio-activelow;
+
+		linux,keymap = <
+			MATRIX_KEY(0, 0, KEY_F1)	/* S2 */
+			MATRIX_KEY(0, 1, KEY_F2)	/* S3 */
+			MATRIX_KEY(0, 2, KEY_F3)	/* S4 */
+			MATRIX_KEY(0, 3, KEY_F4)	/* S5 */
+			MATRIX_KEY(0, 4, KEY_F5)	/* S6 */
+			MATRIX_KEY(0, 5, KEY_F6)	/* S7 */
+			MATRIX_KEY(0, 6, KEY_F7)	/* S8 */
+
+			MATRIX_KEY(1, 0, KEY_Q)	/* S10 */
+			MATRIX_KEY(1, 1, KEY_W)	/* S11 */
+			MATRIX_KEY(1, 2, KEY_E)	/* S12 */
+			MATRIX_KEY(1, 3, KEY_R)	/* S13 */
+			MATRIX_KEY(1, 4, KEY_T)	/* S14 */
+			MATRIX_KEY(1, 5, KEY_Y)	/* S15 */
+			MATRIX_KEY(1, 6, KEY_U)	/* S16 */
+			MATRIX_KEY(1, 7, KEY_I)	/* S17 */
+			MATRIX_KEY(2, 0, KEY_A)	/* S18 */
+			MATRIX_KEY(2, 1, KEY_S)	/* S19 */
+			MATRIX_KEY(2, 2, KEY_D)	/* S20 */
+			MATRIX_KEY(2, 3, KEY_F)	/* S21 */
+			MATRIX_KEY(2, 4, KEY_G)	/* S22 */
+			MATRIX_KEY(2, 5, KEY_H)	/* S23 */
+			MATRIX_KEY(2, 6, KEY_J)	/* S24 */
+			MATRIX_KEY(2, 7, KEY_K)	/* S25 */
+			MATRIX_KEY(3, 0, KEY_ESC)	/* S26 */
+			MATRIX_KEY(3, 1, KEY_Z)	/* S27 */
+			MATRIX_KEY(3, 2, KEY_X)	/* S28 */
+			MATRIX_KEY(3, 3, KEY_C)	/* S29 */
+			MATRIX_KEY(3, 4, KEY_V)	/* S30 */
+			MATRIX_KEY(3, 5, KEY_B)	/* S31 */
+			MATRIX_KEY(3, 6, KEY_N)	/* S32 */
+			MATRIX_KEY(3, 7, KEY_M)	/* S33 */
+			MATRIX_KEY(4, 0, KEY_TAB)	/* S34 */
+			MATRIX_KEY(4, 1, KEY_CAPSLOCK)	/* S35 */
+			MATRIX_KEY(4, 2, KEY_BACKSLASH)	/* S36 */
+			MATRIX_KEY(4, 3, KEY_APOSTROPHE)	/* S37 */
+			MATRIX_KEY(4, 4, KEY_COMMA)	/* S38 */
+			MATRIX_KEY(4, 5, KEY_DOT)	/* S39 */
+			MATRIX_KEY(4, 6, KEY_SLASH)	/* S40 */
+			MATRIX_KEY(4, 7, KEY_UP)	/* S41 */
+			MATRIX_KEY(5, 0, KEY_O)	/* S42 */
+			MATRIX_KEY(5, 1, KEY_L)	/* S43 */
+			MATRIX_KEY(5, 2, KEY_EQUAL)	/* S44 */
+			MATRIX_KEY(5, 3, KEY_QI_UPRED)	/* S45 */
+			MATRIX_KEY(5, 4, KEY_SPACE)	/* S46 */
+			MATRIX_KEY(5, 5, KEY_QI_QI)	/* S47 */
+			MATRIX_KEY(5, 6, KEY_RIGHTCTRL)	/* S48 */
+			MATRIX_KEY(5, 7, KEY_LEFT)	/* S49 */
+			MATRIX_KEY(6, 0, KEY_F8)	/* S50 */
+			MATRIX_KEY(6, 1, KEY_P)	/* S51 */
+			MATRIX_KEY(6, 2, KEY_BACKSPACE)/* S52 */
+			MATRIX_KEY(6, 3, KEY_ENTER)	/* S53 */
+			MATRIX_KEY(6, 4, KEY_QI_VOLUP)	/* S54 */
+			MATRIX_KEY(6, 5, KEY_QI_VOLDOWN)	/* S55 */
+			MATRIX_KEY(6, 6, KEY_DOWN)	/* S56 */
+			MATRIX_KEY(6, 7, KEY_RIGHT)	/* S57 */
+
+			MATRIX_KEY(7, 0, KEY_LEFTSHIFT)	/* S58 */
+			MATRIX_KEY(7, 1, KEY_LEFTALT) /* S59 */
+			MATRIX_KEY(7, 2, KEY_QI_FN)	/* S60 */
+			>;
+	};
+
+	spi {
+		compatible = "spi-gpio";
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		sck-gpios = <&gpc 23 GPIO_ACTIVE_HIGH>;
+		mosi-gpios = <&gpc 22 GPIO_ACTIVE_HIGH>;
+		cs-gpios = <&gpc 21 GPIO_ACTIVE_LOW>;
+		num-chipselects = <1>;
+	};
+
+	usb_charger: charger {
+		compatible = "gpio-charger";
+		charger-type = "usb-sdp";
+		gpios = <&gpd 28 GPIO_ACTIVE_LOW>;
+		status-gpios = <&gpc 27 GPIO_ACTIVE_LOW>;
+	};
+
+	simple_battery: battery {
+		compatible = "simple-battery";
+		voltage-min-design-microvolt = <3600000>;
+		voltage-max-design-microvolt = <4200000>;
+	};
+
+	pmu {
+		compatible = "ingenic,jz4740-battery";
+		io-channels = <&adc INGENIC_ADC_BATTERY>;
+		io-channel-names = "battery";
+		power-supplies = <&usb_charger>;
+		monitored-battery = <&simple_battery>;
+	};
+
+	hwmon {
+		compatible = "iio-hwmon";
+		io-channels = <&adc INGENIC_ADC_AUX>;
+	};
+
+	panel: panel {
+		compatible = "giantplus,gpm940b0";
+
+		power-supply = <&vcc>;
+
+		port {
+			panel_input: endpoint {
+				remote-endpoint = <&panel_output>;
+			};
+		};
+	};
+
+	usb_phy: usb-phy {
+		compatible = "usb-nop-xceiv";
+		#phy-cells = <0>;
+
+		vcc-supply = <&vcc>;
+	};
 };
 
 &ext {
@@ -24,10 +243,116 @@ &uart0 {
 	pinctrl-0 = <&pins_uart0>;
 };
 
+&uart1 {
+	status = "disabled";
+};
+
+&nemc {
+	nandc: nand-controller@1 {
+		compatible = "ingenic,jz4740-nand";
+		reg = <1 0 0x4000000>;
+
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		ingenic,bch-controller = <&ecc>;
+
+		pinctrl-names = "default";
+		pinctrl-0 = <&pins_nemc>;
+
+		rb-gpios = <&gpc 30 GPIO_ACTIVE_LOW>;
+
+		nand@1 {
+			reg = <1>;
+
+			nand-ecc-step-size = <512>;
+			nand-ecc-strength = <4>;
+			nand-ecc-mode = "hw";
+			nand-is-boot-medium;
+			nand-on-flash-bbt;
+
+			partitions {
+				compatible = "fixed-partitions";
+				#address-cells = <1>;
+				#size-cells = <1>;
+
+				partition@0 {
+					label = "boot";
+					reg = <0x0 0x400000>;
+				};
+
+				partition@400000 {
+					label = "kernel";
+					reg = <0x400000 0x400000>;
+				};
+
+				partition@800000 {
+					label = "rootfs";
+					reg = <0x800000 0x0>;
+				};
+			};
+		};
+	};
+};
+
+&lcd {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pins_lcd>;
+
+	port {
+		panel_output: endpoint {
+			remote-endpoint = <&panel_input>;
+		};
+	};
+};
+
+&udc {
+	phys = <&usb_phy>;
+};
+
 &pinctrl {
+	pins_lcd: lcd {
+		function = "lcd";
+		groups = "lcd-8bit";
+	};
+
+	pins_nemc: nemc {
+		function = "nand";
+		groups = "nand-cs1";
+	};
+
 	pins_uart0: uart0 {
 		function = "uart0";
 		groups = "uart0-data";
 		bias-disable;
 	};
+
+	pins_mmc: mmc {
+		mmc {
+			function = "mmc";
+			groups = "mmc-1bit", "mmc-4bit";
+			bias-disable;
+		};
+
+		mmc-gpios {
+			pins = "PD0", "PD2";
+			bias-disable;
+		};
+	};
+};
+
+&mmc {
+	bus-width = <4>;
+	max-frequency = <24000000>;
+	cd-gpios = <&gpd 0 GPIO_ACTIVE_HIGH>;
+	vmmc-supply = <&mmc_power>;
+
+	pinctrl-names = "default";
+	pinctrl-0 = <&pins_mmc>;
+};
+
+&tcu {
+	/* 750 kHz for the system timer and clocksource */
+	assigned-clocks = <&tcu TCU_CLK_TIMER0>, <&tcu TCU_CLK_TIMER1>;
+	assigned-clock-rates = <750000>, <750000>;
 };

arch/mips/boot/dts/mscc/ocelot.dtsi

@@ -120,6 +120,7 @@ switch@1010000 {
 			reg = <0x1010000 0x10000>,
 			      <0x1030000 0x10000>,
 			      <0x1080000 0x100>,
+			      <0x10e0000 0x10000>,
 			      <0x11e0000 0x100>,
 			      <0x11f0000 0x100>,
 			      <0x1200000 0x100>,
@@ -134,12 +135,12 @@ switch@1010000 {
 			      <0x1800000 0x80000>,
 			      <0x1880000 0x10000>,
 			      <0x1060000 0x10000>;
-			reg-names = "sys", "rew", "qs", "port0", "port1",
+			reg-names = "sys", "rew", "qs", "ptp", "port0", "port1",
 				    "port2", "port3", "port4", "port5", "port6",
 				    "port7", "port8", "port9", "port10", "qsys",
 				    "ana", "s2";
-			interrupts = <21 22>;
-			interrupt-names = "xtr", "inj";
+			interrupts = <18 21 22>;
+			interrupt-names = "ptp_rdy", "xtr", "inj";
 
 			ethernet-ports {
 				#address-cells = <1>;

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

@@ -190,7 +190,7 @@ char *octeon_swiotlb;
 
 void __init plat_swiotlb_setup(void)
 {
-	int i;
+	struct memblock_region *mem;
 	phys_addr_t max_addr;
 	phys_addr_t addr_size;
 	size_t swiotlbsize;
@@ -199,19 +199,15 @@ void __init plat_swiotlb_setup(void)
 	max_addr = 0;
 	addr_size = 0;
 
-	for (i = 0 ; i < boot_mem_map.nr_map; i++) {
-		struct boot_mem_map_entry *e = &boot_mem_map.map[i];
-		if (e->type != BOOT_MEM_RAM && e->type != BOOT_MEM_INIT_RAM)
-			continue;
-
+	for_each_memblock(memory, mem) {
 		/* These addresses map low for PCI. */
-		if (e->addr > 0x410000000ull && !OCTEON_IS_OCTEON2())
+		if (mem->base > 0x410000000ull && !OCTEON_IS_OCTEON2())
 			continue;
 
-		addr_size += e->size;
+		addr_size += mem->size;
 
-		if (max_addr < e->addr + e->size)
-			max_addr = e->addr + e->size;
+		if (max_addr < mem->base + mem->size)
+			max_addr = mem->base + mem->size;
 
 	}
 

arch/mips/cavium-octeon/setup.c

@@ -1007,8 +1007,7 @@ void __init plat_mem_setup(void)
 	 * regions next to each other.
 	 */
 	cvmx_bootmem_lock();
-	while ((boot_mem_map.nr_map < BOOT_MEM_MAP_MAX)
-		&& (total < max_memory)) {
+	while (total < max_memory) {
 		memory = cvmx_bootmem_phy_alloc(mem_alloc_size,
 						__pa_symbol(&_end), -1,
 						0x100000,

arch/mips/configs/qi_lb60_defconfig

 # CONFIG_LOCALVERSION_AUTO is not set
 CONFIG_SYSVIPC=y
 # CONFIG_CROSS_MEMORY_ATTACH is not set
-CONFIG_PREEMPT=y
 CONFIG_LOG_BUF_SHIFT=14
 CONFIG_SYSCTL_SYSCALL=y
 CONFIG_KALLSYMS_ALL=y
@@ -17,9 +16,8 @@ CONFIG_MODULE_UNLOAD=y
 # CONFIG_BLK_DEV_BSG is not set
 CONFIG_PARTITION_ADVANCED=y
 # CONFIG_EFI_PARTITION is not set
-# CONFIG_IOSCHED_CFQ is not set
 # CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set
-# CONFIG_COMPACTION is not set
+CONFIG_CMA=y
 CONFIG_NET=y
 CONFIG_PACKET=y
 CONFIG_UNIX=y
@@ -31,9 +29,6 @@ CONFIG_IP_ROUTE_MULTIPATH=y
 CONFIG_IP_ROUTE_VERBOSE=y
 CONFIG_IP_MROUTE=y
 CONFIG_IP_MROUTE_MULTIPLE_TABLES=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_DIAG is not set
 CONFIG_TCP_CONG_ADVANCED=y
 # CONFIG_TCP_CONG_BIC is not set
@@ -44,7 +39,8 @@ CONFIG_TCP_CONG_WESTWOOD=y
 CONFIG_MTD=y
 CONFIG_MTD_BLOCK=y
 CONFIG_MTD_RAW_NAND=y
-CONFIG_MTD_NAND_JZ4740=y
+CONFIG_MTD_NAND_JZ4780=y
+CONFIG_MTD_NAND_JZ4740_ECC=y
 CONFIG_MTD_UBI=y
 CONFIG_NETDEVICES=y
 # CONFIG_WLAN is not set
@@ -66,18 +62,20 @@ CONFIG_SERIAL_8250_INGENIC=y
 CONFIG_SPI=y
 CONFIG_SPI_GPIO=y
 CONFIG_POWER_SUPPLY=y
-CONFIG_BATTERY_JZ4740=y
+CONFIG_BATTERY_INGENIC=y
 CONFIG_CHARGER_GPIO=y
-# CONFIG_HWMON is not set
+CONFIG_SENSORS_IIO_HWMON=y
 CONFIG_WATCHDOG=y
 CONFIG_JZ4740_WDT=y
-CONFIG_MFD_JZ4740_ADC=y
 CONFIG_REGULATOR=y
 CONFIG_REGULATOR_FIXED_VOLTAGE=y
-CONFIG_FB=y
-CONFIG_FB_JZ4740=y
-CONFIG_LCD_CLASS_DEVICE=y
-# CONFIG_BACKLIGHT_CLASS_DEVICE is not set
+CONFIG_DRM=y
+CONFIG_DRM_FBDEV_OVERALLOC=200
+CONFIG_DRM_PANEL_SIMPLE=y
+CONFIG_DRM_INGENIC=y
+# CONFIG_LCD_CLASS_DEVICE is not set
+CONFIG_BACKLIGHT_CLASS_DEVICE=y
+# CONFIG_BACKLIGHT_GENERIC is not set
 # CONFIG_VGA_CONSOLE is not set
 CONFIG_FRAMEBUFFER_CONSOLE=y
 CONFIG_LOGO=y
@@ -92,13 +90,13 @@ CONFIG_SND=y
 # CONFIG_SND_SPI is not set
 # CONFIG_SND_MIPS is not set
 CONFIG_SND_SOC=y
-CONFIG_SND_JZ4740_SOC=y
-CONFIG_SND_JZ4740_SOC_QI_LB60=y
-CONFIG_USB=y
-CONFIG_USB_OTG_BLACKLIST_HUB=y
+CONFIG_SND_JZ4740_SOC_I2S=y
+CONFIG_SND_SOC_JZ4740_CODEC=y
+CONFIG_SND_SOC_SIMPLE_AMPLIFIER=y
+CONFIG_SND_SIMPLE_CARD=y
 CONFIG_USB_MUSB_HDRC=y
-CONFIG_USB_MUSB_GADGET=y
 CONFIG_USB_MUSB_JZ4740=y
+CONFIG_USB_INVENTRA_DMA=y
 CONFIG_NOP_USB_XCEIV=y
 CONFIG_USB_GADGET=y
 CONFIG_USB_GADGET_DEBUG=y
@@ -109,11 +107,13 @@ CONFIG_MMC_JZ4740=y
 CONFIG_RTC_CLASS=y
 CONFIG_RTC_DRV_JZ4740=y
 CONFIG_DMADEVICES=y
-CONFIG_DMA_JZ4740=y
+CONFIG_DMA_JZ4780=y
+CONFIG_MEMORY=y
+CONFIG_IIO=y
+CONFIG_INGENIC_ADC=y
 CONFIG_PWM=y
 CONFIG_PWM_JZ4740=y
-CONFIG_EXT2_FS=y
-CONFIG_EXT3_FS=y
+CONFIG_EXT4_FS=y
 # CONFIG_DNOTIFY is not set
 CONFIG_VFAT_FS=y
 CONFIG_PROC_KCORE=y

arch/mips/fw/arc/memory.c

@@ -27,6 +27,11 @@
 
 #undef DEBUG
 
+#define MAX_PROM_MEM 5
+static phys_addr_t prom_mem_base[MAX_PROM_MEM] __initdata;
+static phys_addr_t prom_mem_size[MAX_PROM_MEM] __initdata;
+static unsigned int nr_prom_mem __initdata;
+
 /*
  * For ARC firmware memory functions the unit of meassuring memory is always
  * a 4k page of memory
@@ -129,6 +134,7 @@ void __init prom_meminit(void)
 	}
 #endif
 
+	nr_prom_mem = 0;
 	p = PROM_NULL_MDESC;
 	while ((p = ArcGetMemoryDescriptor(p))) {
 		unsigned long base, size;
@@ -139,6 +145,16 @@ void __init prom_meminit(void)
 		type = prom_memtype_classify(p->type);
 
 		add_memory_region(base, size, type);
+
+		if (type == BOOT_MEM_ROM_DATA) {
+			if (nr_prom_mem >= 5) {
+				pr_err("Too many ROM DATA regions");
+				continue;
+			}
+			prom_mem_base[nr_prom_mem] = base;
+			prom_mem_size[nr_prom_mem] = size;
+			nr_prom_mem++;
+		}
 	}
 }
 
@@ -150,12 +166,8 @@ void __init prom_free_prom_memory(void)
 	if (prom_flags & PROM_FLAG_DONT_FREE_TEMP)
 		return;
 
-	for (i = 0; i < boot_mem_map.nr_map; i++) {
-		if (boot_mem_map.map[i].type != BOOT_MEM_ROM_DATA)
-			continue;
-
-		addr = boot_mem_map.map[i].addr;
+	for (i = 0; i < nr_prom_mem; i++) {
 		free_init_pages("prom memory",
-				addr, addr + boot_mem_map.map[i].size);
+			prom_mem_base[i], prom_mem_base[i] + prom_mem_size[i]);
 	}
 }

arch/mips/include/asm/addrspace.h

@@ -135,18 +135,9 @@
  */
 #define TO_PHYS_MASK	_CONST64_(0x07ffffffffffffff)	/* 2^^59 - 1 */
 
-#ifndef CONFIG_CPU_R8000
-
-/*
- * The R8000 doesn't have the 32-bit compat spaces so we don't define them
- * in order to catch bugs in the source code.
- */
-
 #define COMPAT_K1BASE32		_CONST64_(0xffffffffa0000000)
 #define PHYS_TO_COMPATK1(x)	((x) | COMPAT_K1BASE32) /* 32-bit compat k1 */
 
-#endif
-
 #define KDM_TO_PHYS(x)		(_ACAST64_ (x) & TO_PHYS_MASK)
 #define PHYS_TO_K0(x)		(_ACAST64_ (x) | CAC_BASE)
 

arch/mips/include/asm/atomic.h

@@ -68,7 +68,7 @@ static __inline__ void atomic_##op(int i, atomic_t * v)			      \
 		"\t" __scbeqz "	%0, 1b					\n"   \
 		"	.set	pop					\n"   \
 		: "=&r" (temp), "+" GCC_OFF_SMALL_ASM() (v->counter)	      \
-		: "Ir" (i));						      \
+		: "Ir" (i) : __LLSC_CLOBBER);				      \
 	} else {							      \
 		unsigned long flags;					      \
 									      \
@@ -98,7 +98,7 @@ static __inline__ int atomic_##op##_return_relaxed(int i, atomic_t * v)	      \
 		"	.set	pop					\n"   \
 		: "=&r" (result), "=&r" (temp),				      \
 		  "+" GCC_OFF_SMALL_ASM() (v->counter)			      \
-		: "Ir" (i));						      \
+		: "Ir" (i) : __LLSC_CLOBBER);				      \
 	} else {							      \
 		unsigned long flags;					      \
 									      \
@@ -132,7 +132,7 @@ static __inline__ int atomic_fetch_##op##_relaxed(int i, atomic_t * v)	      \
 		"	move	%0, %1					\n"   \
 		: "=&r" (result), "=&r" (temp),				      \
 		  "+" GCC_OFF_SMALL_ASM() (v->counter)			      \
-		: "Ir" (i));						      \
+		: "Ir" (i) : __LLSC_CLOBBER);				      \
 	} else {							      \
 		unsigned long flags;					      \
 									      \
@@ -193,6 +193,7 @@ static __inline__ int atomic_sub_if_positive(int i, atomic_t * v)
 	if (kernel_uses_llsc) {
 		int temp;
 
+		loongson_llsc_mb();
 		__asm__ __volatile__(
 		"	.set	push					\n"
 		"	.set	"MIPS_ISA_LEVEL"			\n"
@@ -200,16 +201,16 @@ static __inline__ int atomic_sub_if_positive(int i, atomic_t * v)
 		"	.set	pop					\n"
 		"	subu	%0, %1, %3				\n"
 		"	move	%1, %0					\n"
-		"	bltz	%0, 1f					\n"
+		"	bltz	%0, 2f					\n"
 		"	.set	push					\n"
 		"	.set	"MIPS_ISA_LEVEL"			\n"
 		"	sc	%1, %2					\n"
 		"\t" __scbeqz "	%1, 1b					\n"
-		"1:							\n"
+		"2:							\n"
 		"	.set	pop					\n"
 		: "=&r" (result), "=&r" (temp),
 		  "+" GCC_OFF_SMALL_ASM() (v->counter)
-		: "Ir" (i));
+		: "Ir" (i) : __LLSC_CLOBBER);
 	} else {
 		unsigned long flags;
 
@@ -269,7 +270,7 @@ static __inline__ void atomic64_##op(s64 i, atomic64_t * v)		      \
 		"\t" __scbeqz "	%0, 1b					\n"   \
 		"	.set	pop					\n"   \
 		: "=&r" (temp), "+" GCC_OFF_SMALL_ASM() (v->counter)	      \
-		: "Ir" (i));						      \
+		: "Ir" (i) : __LLSC_CLOBBER);				      \
 	} else {							      \
 		unsigned long flags;					      \
 									      \
@@ -299,7 +300,7 @@ static __inline__ s64 atomic64_##op##_return_relaxed(s64 i, atomic64_t * v)   \
 		"	.set	pop					\n"   \
 		: "=&r" (result), "=&r" (temp),				      \
 		  "+" GCC_OFF_SMALL_ASM() (v->counter)			      \
-		: "Ir" (i));						      \
+		: "Ir" (i) : __LLSC_CLOBBER);				      \
 	} else {							      \
 		unsigned long flags;					      \
 									      \
@@ -333,7 +334,7 @@ static __inline__ s64 atomic64_fetch_##op##_relaxed(s64 i, atomic64_t * v)    \
 		"	.set	pop					\n"   \
 		: "=&r" (result), "=&r" (temp),				      \
 		  "+" GCC_OFF_SMALL_ASM() (v->counter)			      \
-		: "Ir" (i));						      \
+		: "Ir" (i) : __LLSC_CLOBBER);				      \
 	} else {							      \
 		unsigned long flags;					      \
 									      \

arch/mips/include/asm/barrier.h

@@ -211,14 +211,22 @@
 #define __smp_wmb()	barrier()
 #endif
 
+/*
+ * When LL/SC does imply order, it must also be a compiler barrier to avoid the
+ * compiler from reordering where the CPU will not. When it does not imply
+ * order, the compiler is also free to reorder across the LL/SC loop and
+ * ordering will be done by smp_llsc_mb() and friends.
+ */
 #if defined(CONFIG_WEAK_REORDERING_BEYOND_LLSC) && defined(CONFIG_SMP)
 #define __WEAK_LLSC_MB		"	sync	\n"
+#define smp_llsc_mb()		__asm__ __volatile__(__WEAK_LLSC_MB : : :"memory")
+#define __LLSC_CLOBBER
 #else
 #define __WEAK_LLSC_MB		"		\n"
+#define smp_llsc_mb()		do { } while (0)
+#define __LLSC_CLOBBER		"memory"
 #endif
 
-#define smp_llsc_mb()	__asm__ __volatile__(__WEAK_LLSC_MB : : :"memory")
-
 #ifdef CONFIG_CPU_CAVIUM_OCTEON
 #define smp_mb__before_llsc() smp_wmb()
 #define __smp_mb__before_llsc() __smp_wmb()
@@ -238,36 +246,40 @@
 
 /*
  * Some Loongson 3 CPUs have a bug wherein execution of a memory access (load,
- * store or pref) in between an ll & sc can cause the sc instruction to
+ * store or prefetch) in between an LL & SC can cause the SC instruction to
  * erroneously succeed, breaking atomicity. Whilst it's unusual to write code
  * containing such sequences, this bug bites harder than we might otherwise
  * expect due to reordering & speculation:
  *
- * 1) A memory access appearing prior to the ll in program order may actually
- *    be executed after the ll - this is the reordering case.
+ * 1) A memory access appearing prior to the LL in program order may actually
+ *    be executed after the LL - this is the reordering case.
  *
- *    In order to avoid this we need to place a memory barrier (ie. a sync
- *    instruction) prior to every ll instruction, in between it & any earlier
- *    memory access instructions. Many of these cases are already covered by
- *    smp_mb__before_llsc() but for the remaining cases, typically ones in
- *    which multiple CPUs may operate on a memory location but ordering is not
- *    usually guaranteed, we use loongson_llsc_mb() below.
+ *    In order to avoid this we need to place a memory barrier (ie. a SYNC
+ *    instruction) prior to every LL instruction, in between it and any earlier
+ *    memory access instructions.
  *
  *    This reordering case is fixed by 3A R2 CPUs, ie. 3A2000 models and later.
  *
- * 2) If a conditional branch exists between an ll & sc with a target outside
- *    of the ll-sc loop, for example an exit upon value mismatch in cmpxchg()
+ * 2) If a conditional branch exists between an LL & SC with a target outside
+ *    of the LL-SC loop, for example an exit upon value mismatch in cmpxchg()
  *    or similar, then misprediction of the branch may allow speculative
- *    execution of memory accesses from outside of the ll-sc loop.
+ *    execution of memory accesses from outside of the LL-SC loop.
  *
- *    In order to avoid this we need a memory barrier (ie. a sync instruction)
+ *    In order to avoid this we need a memory barrier (ie. a SYNC instruction)
  *    at each affected branch target, for which we also use loongson_llsc_mb()
  *    defined below.
  *
  *    This case affects all current Loongson 3 CPUs.
+ *
+ * The above described cases cause an error in the cache coherence protocol;
+ * such that the Invalidate of a competing LL-SC goes 'missing' and SC
+ * erroneously observes its core still has Exclusive state and lets the SC
+ * proceed.
+ *
+ * Therefore the error only occurs on SMP systems.
  */
 #ifdef CONFIG_CPU_LOONGSON3_WORKAROUNDS /* Loongson-3's LLSC workaround */
-#define loongson_llsc_mb()	__asm__ __volatile__(__WEAK_LLSC_MB : : :"memory")
+#define loongson_llsc_mb()	__asm__ __volatile__("sync" : : :"memory")
 #else
 #define loongson_llsc_mb()	do { } while (0)
 #endif

arch/mips/include/asm/bitops.h

@@ -66,7 +66,8 @@ static inline void set_bit(unsigned long nr, volatile unsigned long *addr)
 		"	beqzl	%0, 1b					\n"
 		"	.set	pop					\n"
 		: "=&r" (temp), "=" GCC_OFF_SMALL_ASM() (*m)
-		: "ir" (1UL << bit), GCC_OFF_SMALL_ASM() (*m));
+		: "ir" (1UL << bit), GCC_OFF_SMALL_ASM() (*m)
+		: __LLSC_CLOBBER);
 #if defined(CONFIG_CPU_MIPSR2) || defined(CONFIG_CPU_MIPSR6)
 	} else if (kernel_uses_llsc && __builtin_constant_p(bit)) {
 		loongson_llsc_mb();
@@ -76,7 +77,8 @@ static inline void set_bit(unsigned long nr, volatile unsigned long *addr)
 			"	" __INS "%0, %3, %2, 1			\n"
 			"	" __SC "%0, %1				\n"
 			: "=&r" (temp), "+" GCC_OFF_SMALL_ASM() (*m)
-			: "ir" (bit), "r" (~0));
+			: "ir" (bit), "r" (~0)
+			: __LLSC_CLOBBER);
 		} while (unlikely(!temp));
 #endif /* CONFIG_CPU_MIPSR2 || CONFIG_CPU_MIPSR6 */
 	} else if (kernel_uses_llsc) {
@@ -90,7 +92,8 @@ static inline void set_bit(unsigned long nr, volatile unsigned long *addr)
 			"	" __SC	"%0, %1				\n"
 			"	.set	pop				\n"
 			: "=&r" (temp), "+" GCC_OFF_SMALL_ASM() (*m)
-			: "ir" (1UL << bit));
+			: "ir" (1UL << bit)
+			: __LLSC_CLOBBER);
 		} while (unlikely(!temp));
 	} else
 		__mips_set_bit(nr, addr);
@@ -122,7 +125,8 @@ static inline void clear_bit(unsigned long nr, volatile unsigned long *addr)
 		"	beqzl	%0, 1b					\n"
 		"	.set	pop					\n"
 		: "=&r" (temp), "+" GCC_OFF_SMALL_ASM() (*m)
-		: "ir" (~(1UL << bit)));
+		: "ir" (~(1UL << bit))
+		: __LLSC_CLOBBER);
 #if defined(CONFIG_CPU_MIPSR2) || defined(CONFIG_CPU_MIPSR6)
 	} else if (kernel_uses_llsc && __builtin_constant_p(bit)) {
 		loongson_llsc_mb();
@@ -132,7 +136,8 @@ static inline void clear_bit(unsigned long nr, volatile unsigned long *addr)
 			"	" __INS "%0, $0, %2, 1			\n"
 			"	" __SC "%0, %1				\n"
 			: "=&r" (temp), "+" GCC_OFF_SMALL_ASM() (*m)
-			: "ir" (bit));
+			: "ir" (bit)
+			: __LLSC_CLOBBER);
 		} while (unlikely(!temp));
 #endif /* CONFIG_CPU_MIPSR2 || CONFIG_CPU_MIPSR6 */
 	} else if (kernel_uses_llsc) {
@@ -146,7 +151,8 @@ static inline void clear_bit(unsigned long nr, volatile unsigned long *addr)
 			"	" __SC "%0, %1				\n"
 			"	.set	pop				\n"
 			: "=&r" (temp), "+" GCC_OFF_SMALL_ASM() (*m)
-			: "ir" (~(1UL << bit)));
+			: "ir" (~(1UL << bit))
+			: __LLSC_CLOBBER);
 		} while (unlikely(!temp));
 	} else
 		__mips_clear_bit(nr, addr);
@@ -192,7 +198,8 @@ static inline void change_bit(unsigned long nr, volatile unsigned long *addr)
 		"	beqzl	%0, 1b				\n"
 		"	.set	pop				\n"
 		: "=&r" (temp), "+" GCC_OFF_SMALL_ASM() (*m)
-		: "ir" (1UL << bit));
+		: "ir" (1UL << bit)
+		: __LLSC_CLOBBER);
 	} else if (kernel_uses_llsc) {
 		unsigned long *m = ((unsigned long *) addr) + (nr >> SZLONG_LOG);
 		unsigned long temp;
@@ -207,7 +214,8 @@ static inline void change_bit(unsigned long nr, volatile unsigned long *addr)
 			"	" __SC	"%0, %1				\n"
 			"	.set	pop				\n"
 			: "=&r" (temp), "+" GCC_OFF_SMALL_ASM() (*m)
-			: "ir" (1UL << bit));
+			: "ir" (1UL << bit)
+			: __LLSC_CLOBBER);
 		} while (unlikely(!temp));
 	} else
 		__mips_change_bit(nr, addr);
@@ -244,11 +252,12 @@ static inline int test_and_set_bit(unsigned long nr,
 		"	.set	pop					\n"
 		: "=&r" (temp), "+" GCC_OFF_SMALL_ASM() (*m), "=&r" (res)
 		: "r" (1UL << bit)
-		: "memory");
+		: __LLSC_CLOBBER);
 	} else if (kernel_uses_llsc) {
 		unsigned long *m = ((unsigned long *) addr) + (nr >> SZLONG_LOG);
 		unsigned long temp;
 
+		loongson_llsc_mb();
 		do {
 			__asm__ __volatile__(
 			"	.set	push				\n"
@@ -259,7 +268,7 @@ static inline int test_and_set_bit(unsigned long nr,
 			"	.set	pop				\n"
 			: "=&r" (temp), "+" GCC_OFF_SMALL_ASM() (*m), "=&r" (res)
 			: "r" (1UL << bit)
-			: "memory");
+			: __LLSC_CLOBBER);
 		} while (unlikely(!res));
 
 		res = temp & (1UL << bit);
@@ -300,11 +309,12 @@ static inline int test_and_set_bit_lock(unsigned long nr,
 		"	.set	pop					\n"
 		: "=&r" (temp), "+m" (*m), "=&r" (res)
 		: "r" (1UL << bit)
-		: "memory");
+		: __LLSC_CLOBBER);
 	} else if (kernel_uses_llsc) {
 		unsigned long *m = ((unsigned long *) addr) + (nr >> SZLONG_LOG);
 		unsigned long temp;
 
+		loongson_llsc_mb();
 		do {
 			__asm__ __volatile__(
 			"	.set	push				\n"
@@ -315,7 +325,7 @@ static inline int test_and_set_bit_lock(unsigned long nr,
 			"	.set	pop				\n"
 			: "=&r" (temp), "+" GCC_OFF_SMALL_ASM() (*m), "=&r" (res)
 			: "r" (1UL << bit)
-			: "memory");
+			: __LLSC_CLOBBER);
 		} while (unlikely(!res));
 
 		res = temp & (1UL << bit);
@@ -358,12 +368,13 @@ static inline int test_and_clear_bit(unsigned long nr,
 		"	.set	pop					\n"
 		: "=&r" (temp), "+" GCC_OFF_SMALL_ASM() (*m), "=&r" (res)
 		: "r" (1UL << bit)
-		: "memory");
+		: __LLSC_CLOBBER);
 #if defined(CONFIG_CPU_MIPSR2) || defined(CONFIG_CPU_MIPSR6)
 	} else if (kernel_uses_llsc && __builtin_constant_p(nr)) {
 		unsigned long *m = ((unsigned long *) addr) + (nr >> SZLONG_LOG);
 		unsigned long temp;
 
+		loongson_llsc_mb();
 		do {
 			__asm__ __volatile__(
 			"	" __LL	"%0, %1 # test_and_clear_bit	\n"
@@ -372,13 +383,14 @@ static inline int test_and_clear_bit(unsigned long nr,
 			"	" __SC	"%0, %1				\n"
 			: "=&r" (temp), "+" GCC_OFF_SMALL_ASM() (*m), "=&r" (res)
 			: "ir" (bit)
-			: "memory");
+			: __LLSC_CLOBBER);
 		} while (unlikely(!temp));
 #endif
 	} else if (kernel_uses_llsc) {
 		unsigned long *m = ((unsigned long *) addr) + (nr >> SZLONG_LOG);
 		unsigned long temp;
 
+		loongson_llsc_mb();
 		do {
 			__asm__ __volatile__(
 			"	.set	push				\n"
@@ -390,7 +402,7 @@ static inline int test_and_clear_bit(unsigned long nr,
 			"	.set	pop				\n"
 			: "=&r" (temp), "+" GCC_OFF_SMALL_ASM() (*m), "=&r" (res)
 			: "r" (1UL << bit)
-			: "memory");
+			: __LLSC_CLOBBER);
 		} while (unlikely(!res));
 
 		res = temp & (1UL << bit);
@@ -433,11 +445,12 @@ static inline int test_and_change_bit(unsigned long nr,
 		"	.set	pop					\n"
 		: "=&r" (temp), "+" GCC_OFF_SMALL_ASM() (*m), "=&r" (res)
 		: "r" (1UL << bit)
-		: "memory");
+		: __LLSC_CLOBBER);
 	} else if (kernel_uses_llsc) {
 		unsigned long *m = ((unsigned long *) addr) + (nr >> SZLONG_LOG);
 		unsigned long temp;
 
+		loongson_llsc_mb();
 		do {
 			__asm__ __volatile__(
 			"	.set	push				\n"
@@ -448,7 +461,7 @@ static inline int test_and_change_bit(unsigned long nr,
 			"	.set	pop				\n"
 			: "=&r" (temp), "+" GCC_OFF_SMALL_ASM() (*m), "=&r" (res)
 			: "r" (1UL << bit)
-			: "memory");
+			: __LLSC_CLOBBER);
 		} while (unlikely(!res));
 
 		res = temp & (1UL << bit);

arch/mips/include/asm/bootinfo.h

@@ -81,34 +81,19 @@ enum loongson_machine_type {
 #define  MACH_INGENIC_JZ4740	1	/* JZ4740 SOC		*/
 #define  MACH_INGENIC_JZ4770	2	/* JZ4770 SOC		*/
 #define  MACH_INGENIC_JZ4780	3	/* JZ4780 SOC		*/
+#define  MACH_INGENIC_X1000		4	/* X1000 SOC		*/
 
 extern char *system_type;
 const char *get_system_type(void);
 
 extern unsigned long mips_machtype;
 
-#define BOOT_MEM_MAP_MAX	32
 #define BOOT_MEM_RAM		1
 #define BOOT_MEM_ROM_DATA	2
 #define BOOT_MEM_RESERVED	3
 #define BOOT_MEM_INIT_RAM	4
 #define BOOT_MEM_NOMAP		5
 
-/*
- * A memory map that's built upon what was determined
- * or specified on the command line.
- */
-struct boot_mem_map {
-	int nr_map;
-	struct boot_mem_map_entry {
-		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_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);
 

arch/mips/include/asm/cmpxchg.h

@@ -46,6 +46,7 @@ extern unsigned long __xchg_called_with_bad_pointer(void)
 	__typeof(*(m)) __ret;						\
 									\
 	if (kernel_uses_llsc) {						\
+		loongson_llsc_mb();					\
 		__asm__ __volatile__(					\
 		"	.set	push				\n"	\
 		"	.set	noat				\n"	\
@@ -60,7 +61,7 @@ extern unsigned long __xchg_called_with_bad_pointer(void)
 		"	.set	pop				\n"	\
 		: "=&r" (__ret), "=" GCC_OFF_SMALL_ASM() (*m)		\
 		: GCC_OFF_SMALL_ASM() (*m), "Jr" (val)			\
-		: "memory");						\
+		: __LLSC_CLOBBER);					\
 	} else {							\
 		unsigned long __flags;					\
 									\
@@ -117,6 +118,7 @@ static inline unsigned long __xchg(volatile void *ptr, unsigned long x,
 	__typeof(*(m)) __ret;						\
 									\
 	if (kernel_uses_llsc) {						\
+		loongson_llsc_mb();					\
 		__asm__ __volatile__(					\
 		"	.set	push				\n"	\
 		"	.set	noat				\n"	\
@@ -133,7 +135,8 @@ static inline unsigned long __xchg(volatile void *ptr, unsigned long x,
 		"2:						\n"	\
 		: "=&r" (__ret), "=" GCC_OFF_SMALL_ASM() (*m)		\
 		: GCC_OFF_SMALL_ASM() (*m), "Jr" (old), "Jr" (new)	\
-		: "memory");						\
+		: __LLSC_CLOBBER);					\
+		loongson_llsc_mb();					\
 	} else {							\
 		unsigned long __flags;					\
 									\
@@ -229,6 +232,7 @@ static inline unsigned long __cmpxchg64(volatile void *ptr,
 	 */
 	local_irq_save(flags);
 
+	loongson_llsc_mb();
 	asm volatile(
 	"	.set	push				\n"
 	"	.set	" MIPS_ISA_ARCH_LEVEL "		\n"
@@ -274,6 +278,7 @@ static inline unsigned long __cmpxchg64(volatile void *ptr,
 	  "r" (old),
 	  "r" (new)
 	: "memory");
+	loongson_llsc_mb();
 
 	local_irq_restore(flags);
 	return ret;
@@ -290,10 +295,13 @@ static inline unsigned long __cmpxchg64(volatile void *ptr,
 	 * will cause a build error unless cpu_has_64bits is a		\
 	 * compile-time constant 1.					\
 	 */								\
-	if (cpu_has_64bits && kernel_uses_llsc)				\
+	if (cpu_has_64bits && kernel_uses_llsc) {			\
+		smp_mb__before_llsc();					\
 		__res = __cmpxchg64((ptr), __old, __new);		\
-	else								\
+		smp_llsc_mb();						\
+	} else {							\
 		__res = __cmpxchg64_unsupported();			\
+	}								\
 									\
 	__res;								\
 })

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

@@ -243,9 +243,6 @@
 #ifndef cpu_has_pindexed_dcache
 #define cpu_has_pindexed_dcache	(cpu_data[0].dcache.flags & MIPS_CACHE_PINDEX)
 #endif
-#ifndef cpu_has_local_ebase
-#define cpu_has_local_ebase	1
-#endif
 
 /*
  * I-Cache snoops remote store.	 This only matters on SMP.  Some multiprocessors
@@ -397,6 +394,22 @@
 #define cpu_has_dsp3		__ase(MIPS_ASE_DSP3)
 #endif
 
+#ifndef cpu_has_loongson_mmi
+#define cpu_has_loongson_mmi		__ase(MIPS_ASE_LOONGSON_MMI)
+#endif
+
+#ifndef cpu_has_loongson_cam
+#define cpu_has_loongson_cam		__ase(MIPS_ASE_LOONGSON_CAM)
+#endif
+
+#ifndef cpu_has_loongson_ext
+#define cpu_has_loongson_ext		__ase(MIPS_ASE_LOONGSON_EXT)
+#endif
+
+#ifndef cpu_has_loongson_ext2
+#define cpu_has_loongson_ext2		__ase(MIPS_ASE_LOONGSON_EXT2)
+#endif
+
 #ifndef cpu_has_mipsmt
 #define cpu_has_mipsmt		__isa_lt_and_ase(6, MIPS_ASE_MIPSMT)
 #endif

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

@@ -38,7 +38,7 @@ static inline int __pure __get_cpu_type(const int cpu_type)
 #if defined(CONFIG_SYS_HAS_CPU_MIPS32_R1) || \
     defined(CONFIG_SYS_HAS_CPU_MIPS32_R2)
 	case CPU_4KEC:
-	case CPU_JZRISC:
+	case CPU_XBURST:
 #endif
 
 #ifdef CONFIG_SYS_HAS_CPU_MIPS32_R2
@@ -116,11 +116,6 @@ static inline int __pure __get_cpu_type(const int cpu_type)
 	case CPU_VR4181A:
 #endif
 
-#ifdef CONFIG_SYS_HAS_CPU_R4300
-	case CPU_R4300:
-	case CPU_R4310:
-#endif
-
 #ifdef CONFIG_SYS_HAS_CPU_R4X00
 	case CPU_R4000PC:
 	case CPU_R4000SC:
@@ -143,10 +138,6 @@ static inline int __pure __get_cpu_type(const int cpu_type)
 	case CPU_R5000:
 #endif
 
-#ifdef CONFIG_SYS_HAS_CPU_R5432
-	case CPU_R5432:
-#endif
-
 #ifdef CONFIG_SYS_HAS_CPU_R5500
 	case CPU_R5500:
 #endif
@@ -155,10 +146,6 @@ static inline int __pure __get_cpu_type(const int cpu_type)
 	case CPU_NEVADA:
 #endif
 
-#ifdef CONFIG_SYS_HAS_CPU_R8000
-	case CPU_R8000:
-#endif
-
 #ifdef CONFIG_SYS_HAS_CPU_R10000
 	case CPU_R10000:
 	case CPU_R12000:

arch/mips/include/asm/cpu.h

@@ -47,7 +47,7 @@
 #define PRID_COMP_CAVIUM	0x0d0000
 #define PRID_COMP_LOONGSON	0x140000
 #define PRID_COMP_INGENIC_D0	0xd00000	/* JZ4740, JZ4750 */
-#define PRID_COMP_INGENIC_D1	0xd10000	/* JZ4770, JZ4775 */
+#define PRID_COMP_INGENIC_D1	0xd10000	/* JZ4770, JZ4775, X1000 */
 #define PRID_COMP_INGENIC_E1	0xe10000	/* JZ4780 */
 
 /*
@@ -183,7 +183,7 @@
  * These are the PRID's for when 23:16 == PRID_COMP_INGENIC_*
  */
 
-#define PRID_IMP_JZRISC	       0x0200
+#define PRID_IMP_XBURST	       0x0200
 
 /*
  * These are the PRID's for when 23:16 == PRID_COMP_NETLOGIC
@@ -293,18 +293,13 @@ enum cpu_type_enum {
 	/*
 	 * R4000 class processors
 	 */
-	CPU_R4000PC, CPU_R4000SC, CPU_R4000MC, CPU_R4200, CPU_R4300, CPU_R4310,
+	CPU_R4000PC, CPU_R4000SC, CPU_R4000MC, CPU_R4200,
 	CPU_R4400PC, CPU_R4400SC, CPU_R4400MC, CPU_R4600, CPU_R4640, CPU_R4650,
-	CPU_R4700, CPU_R5000, CPU_R5500, CPU_NEVADA, CPU_R5432, CPU_R10000,
+	CPU_R4700, CPU_R5000, CPU_R5500, CPU_NEVADA, CPU_R10000,
 	CPU_R12000, CPU_R14000, CPU_R16000, CPU_VR41XX, CPU_VR4111, CPU_VR4121,
 	CPU_VR4122, CPU_VR4131, CPU_VR4133, CPU_VR4181, CPU_VR4181A, CPU_RM7000,
 	CPU_SR71000, CPU_TX49XX,
 
-	/*
-	 * R8000 class processors
-	 */
-	CPU_R8000,
-
 	/*
 	 * TX3900 class processors
 	 */
@@ -315,7 +310,7 @@ enum cpu_type_enum {
 	 */
 	CPU_4KC, CPU_4KEC, CPU_4KSC, CPU_24K, CPU_34K, CPU_1004K, CPU_74K,
 	CPU_ALCHEMY, CPU_PR4450, CPU_BMIPS32, CPU_BMIPS3300, CPU_BMIPS4350,
-	CPU_BMIPS4380, CPU_BMIPS5000, CPU_JZRISC, CPU_LOONGSON1, CPU_M14KC,
+	CPU_BMIPS4380, CPU_BMIPS5000, CPU_XBURST, CPU_LOONGSON1, CPU_M14KC,
 	CPU_M14KEC, CPU_INTERAPTIV, CPU_P5600, CPU_PROAPTIV, CPU_1074K,
 	CPU_M5150, CPU_I6400, CPU_P6600, CPU_M6250,
 
@@ -433,5 +428,9 @@ enum cpu_type_enum {
 #define MIPS_ASE_MSA		0x00000100 /* MIPS SIMD Architecture */
 #define MIPS_ASE_DSP3		0x00000200 /* Signal Processing ASE Rev 3*/
 #define MIPS_ASE_MIPS16E2	0x00000400 /* MIPS16e2 */
+#define MIPS_ASE_LOONGSON_MMI	0x00000800 /* Loongson MultiMedia extensions Instructions */
+#define MIPS_ASE_LOONGSON_CAM	0x00001000 /* Loongson CAM */
+#define MIPS_ASE_LOONGSON_EXT	0x00002000 /* Loongson EXTensions */
+#define MIPS_ASE_LOONGSON_EXT2	0x00004000 /* Loongson EXTensions R2 */
 
 #endif /* _ASM_CPU_H */

arch/mips/include/asm/io.h

@@ -63,21 +63,11 @@
  * instruction, so the lower 16 bits must be zero.  Should be true on
  * on any sane architecture; generic code does not use this assumption.
  */
-extern const unsigned long mips_io_port_base;
+extern unsigned long mips_io_port_base;
 
-/*
- * Gcc will generate code to load the value of mips_io_port_base after each
- * function call which may be fairly wasteful in some cases.  So we don't
- * play quite by the book.  We tell gcc mips_io_port_base is a long variable
- * which solves the code generation issue.  Now we need to violate the
- * aliasing rules a little to make initialization possible and finally we
- * will need the barrier() to fight side effects of the aliasing chat.
- * This trickery will eventually collapse under gcc's optimizer.  Oh well.
- */
 static inline void set_io_port_base(unsigned long base)
 {
-	* (unsigned long *) &mips_io_port_base = base;
-	barrier();
+	mips_io_port_base = base;
 }
 
 /*
@@ -262,11 +252,11 @@ static inline void __iomem *ioremap_prot(phys_addr_t offset,
 #define ioremap_uc ioremap_nocache
 
 /*
- * ioremap_cachable -	map bus memory into CPU space
+ * ioremap_cache -	map bus memory into CPU space
  * @offset:	    bus address of the memory
  * @size:	    size of the resource to map
  *
- * ioremap_nocache performs a platform specific sequence of operations to
+ * ioremap_cache performs a platform specific sequence of operations to
  * make bus memory CPU accessible via the readb/readw/readl/writeb/
  * writew/writel functions and the other mmio helpers. The returned
  * address is not guaranteed to be usable directly as a virtual
@@ -276,9 +266,8 @@ static inline void __iomem *ioremap_prot(phys_addr_t offset,
  * the CPU.  Also enables full write-combining.	 Useful for some
  * memory-like regions on I/O busses.
  */
-#define ioremap_cachable(offset, size)					\
+#define ioremap_cache(offset, size)					\
 	__ioremap_mode((offset), (size), _page_cachable_default)
-#define ioremap_cache ioremap_cachable
 
 /*
  * ioremap_wc     -   map bus memory into CPU space

arch/mips/include/asm/mach-bcm47xx/bcm47xx_board.h

@@ -98,6 +98,7 @@ enum bcm47xx_board {
 	BCM47XX_BOARD_MOTOROLA_WR850GP,
 	BCM47XX_BOARD_MOTOROLA_WR850GV2V3,
 
+	BCM47XX_BOARD_NETGEAR_R6200_V1,
 	BCM47XX_BOARD_NETGEAR_WGR614V8,
 	BCM47XX_BOARD_NETGEAR_WGR614V9,
 	BCM47XX_BOARD_NETGEAR_WGR614_V10,

arch/mips/include/asm/mach-cavium-octeon/cpu-feature-overrides.h

@@ -45,7 +45,6 @@
 #define cpu_has_ic_fills_f_dc	0
 #define cpu_has_64bits		1
 #define cpu_has_octeon_cache	1
-#define cpu_has_saa		octeon_has_saa()
 #define cpu_has_mips32r1	1
 #define cpu_has_mips32r2	1
 #define cpu_has_mips64r1	1
@@ -60,7 +59,6 @@
 
 #define cpu_has_rixi		(cpu_data[0].cputype != CPU_CAVIUM_OCTEON)
 
-#define ARCH_HAS_IRQ_PER_CPU	1
 #define ARCH_HAS_SPINLOCK_PREFETCH 1
 #define spin_lock_prefetch(x) prefetch(x)
 #define PREFETCH_STRIDE 128
@@ -73,13 +71,6 @@
 #define ARCH_HAS_USABLE_BUILTIN_POPCOUNT 1
 #endif
 
-static inline int octeon_has_saa(void)
-{
-	int id;
-	asm volatile ("mfc0 %0, $15,0" : "=r" (id));
-	return id >= 0x000d0300;
-}
-
 /*
  * The last 256MB are reserved for device to device mappings and the
  * BAR1 hole.

arch/mips/include/asm/mach-cavium-octeon/war.h

@@ -12,7 +12,6 @@
 #define R4600_V1_INDEX_ICACHEOP_WAR	0
 #define R4600_V1_HIT_CACHEOP_WAR	0
 #define R4600_V2_HIT_CACHEOP_WAR	0
-#define R5432_CP0_INTERRUPT_WAR		0
 #define BCM1250_M3_WAR			0
 #define SIBYTE_1956_WAR			0
 #define MIPS4K_ICACHE_REFILL_WAR	0

arch/mips/include/asm/mach-dec/cpu-feature-overrides.h

@@ -32,7 +32,6 @@
 #define cpu_has_vtag_icache		0
 #define cpu_has_ic_fills_f_dc		0
 #define cpu_has_pindexed_dcache		0
-#define cpu_has_local_ebase		0
 #define cpu_icache_snoops_remote_store	1
 #define cpu_has_mips_4			0
 #define cpu_has_mips_5			0

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

@@ -11,7 +11,6 @@
 #define R4600_V1_INDEX_ICACHEOP_WAR	0
 #define R4600_V1_HIT_CACHEOP_WAR	0
 #define R4600_V2_HIT_CACHEOP_WAR	0
-#define R5432_CP0_INTERRUPT_WAR		0
 #define BCM1250_M3_WAR			0
 #define SIBYTE_1956_WAR			0
 #define MIPS4K_ICACHE_REFILL_WAR	0

arch/mips/include/asm/mach-ip22/war.h

@@ -15,7 +15,6 @@
 #define R4600_V1_INDEX_ICACHEOP_WAR	1
 #define R4600_V1_HIT_CACHEOP_WAR	1
 #define R4600_V2_HIT_CACHEOP_WAR	1
-#define R5432_CP0_INTERRUPT_WAR		0
 #define BCM1250_M3_WAR			0
 #define SIBYTE_1956_WAR			0
 #define MIPS4K_ICACHE_REFILL_WAR	0

arch/mips/include/asm/mach-ip27/war.h

@@ -11,7 +11,6 @@
 #define R4600_V1_INDEX_ICACHEOP_WAR	0
 #define R4600_V1_HIT_CACHEOP_WAR	0
 #define R4600_V2_HIT_CACHEOP_WAR	0
-#define R5432_CP0_INTERRUPT_WAR		0
 #define BCM1250_M3_WAR			0
 #define SIBYTE_1956_WAR			0
 #define MIPS4K_ICACHE_REFILL_WAR	0

arch/mips/include/asm/mach-ip28/war.h

@@ -11,7 +11,6 @@
 #define R4600_V1_INDEX_ICACHEOP_WAR	0
 #define R4600_V1_HIT_CACHEOP_WAR	0
 #define R4600_V2_HIT_CACHEOP_WAR	0
-#define R5432_CP0_INTERRUPT_WAR		0
 #define BCM1250_M3_WAR			0
 #define SIBYTE_1956_WAR			0
 #define MIPS4K_ICACHE_REFILL_WAR	0

arch/mips/include/asm/mach-ip32/war.h

@@ -11,7 +11,6 @@
 #define R4600_V1_INDEX_ICACHEOP_WAR	0
 #define R4600_V1_HIT_CACHEOP_WAR	0
 #define R4600_V2_HIT_CACHEOP_WAR	0
-#define R5432_CP0_INTERRUPT_WAR		0
 #define BCM1250_M3_WAR			0
 #define SIBYTE_1956_WAR			0
 #define MIPS4K_ICACHE_REFILL_WAR	0

arch/mips/include/asm/mach-jz4740/gpio.h

-/* SPDX-License-Identifier: GPL-2.0-or-later */
-/*
- *  Copyright (C) 2009, Lars-Peter Clausen <lars@metafoo.de>
- *  JZ4740 GPIO pin definitions
- */
-
-#ifndef _JZ_GPIO_H
-#define _JZ_GPIO_H
-
-#define JZ_GPIO_PORTA(x) ((x) + 32 * 0)
-#define JZ_GPIO_PORTB(x) ((x) + 32 * 1)
-#define JZ_GPIO_PORTC(x) ((x) + 32 * 2)
-#define JZ_GPIO_PORTD(x) ((x) + 32 * 3)
-
-#endif

arch/mips/include/asm/mach-jz4740/jz4740_fb.h

-/* SPDX-License-Identifier: GPL-2.0-or-later */
-/*
- *  Copyright (C) 2009, Lars-Peter Clausen <lars@metafoo.de>
- */
-
-#ifndef __ASM_MACH_JZ4740_JZ4740_FB_H__
-#define __ASM_MACH_JZ4740_JZ4740_FB_H__
-
-#include <linux/fb.h>
-
-enum jz4740_fb_lcd_type {
-	JZ_LCD_TYPE_GENERIC_16_BIT = 0,
-	JZ_LCD_TYPE_GENERIC_18_BIT = 0 | (1 << 4),
-	JZ_LCD_TYPE_SPECIAL_TFT_1 = 1,
-	JZ_LCD_TYPE_SPECIAL_TFT_2 = 2,
-	JZ_LCD_TYPE_SPECIAL_TFT_3 = 3,
-	JZ_LCD_TYPE_NON_INTERLACED_CCIR656 = 5,
-	JZ_LCD_TYPE_INTERLACED_CCIR656 = 7,
-	JZ_LCD_TYPE_SINGLE_COLOR_STN = 8,
-	JZ_LCD_TYPE_SINGLE_MONOCHROME_STN = 9,
-	JZ_LCD_TYPE_DUAL_COLOR_STN = 10,
-	JZ_LCD_TYPE_DUAL_MONOCHROME_STN = 11,
-	JZ_LCD_TYPE_8BIT_SERIAL = 12,
-};
-
-#define JZ4740_FB_SPECIAL_TFT_CONFIG(start, stop) (((start) << 16) | (stop))
-
-/*
-* width: width of the lcd display in mm
-* height: height of the lcd display in mm
-* num_modes: size of modes
-* modes: list of valid video modes
-* bpp: bits per pixel for the lcd
-* lcd_type: lcd type
-*/
-
-struct jz4740_fb_platform_data {
-	unsigned int width;
-	unsigned int height;
-
-	size_t num_modes;
-	struct fb_videomode *modes;
-
-	unsigned int bpp;
-	enum jz4740_fb_lcd_type lcd_type;
-
-	struct {
-		uint32_t spl;
-		uint32_t cls;
-		uint32_t ps;
-		uint32_t rev;
-	} special_tft_config;
-
-	unsigned pixclk_falling_edge:1;
-	unsigned date_enable_active_low:1;
-};
-
-#endif

arch/mips/include/asm/mach-jz4740/jz4740_mmc.h

-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef __LINUX_MMC_JZ4740_MMC
-#define __LINUX_MMC_JZ4740_MMC
-
-struct jz4740_mmc_platform_data {
-	unsigned card_detect_active_low:1;
-	unsigned read_only_active_low:1;
-
-	unsigned data_1bit:1;
-};
-
-#endif

arch/mips/include/asm/mach-jz4740/platform.h

-/* SPDX-License-Identifier: GPL-2.0-or-later */
-/*
- *  Copyright (C) 2009-2010, Lars-Peter Clausen <lars@metafoo.de>
- *  JZ4740 platform device definitions
- */
-
-
-#ifndef __JZ4740_PLATFORM_H
-#define __JZ4740_PLATFORM_H
-
-#include <linux/platform_device.h>
-
-extern struct platform_device jz4740_udc_device;
-extern struct platform_device jz4740_udc_xceiv_device;
-extern struct platform_device jz4740_mmc_device;
-extern struct platform_device jz4740_i2c_device;
-extern struct platform_device jz4740_nand_device;
-extern struct platform_device jz4740_framebuffer_device;
-extern struct platform_device jz4740_i2s_device;
-extern struct platform_device jz4740_pcm_device;
-extern struct platform_device jz4740_codec_device;
-extern struct platform_device jz4740_adc_device;
-extern struct platform_device jz4740_pwm_device;
-extern struct platform_device jz4740_dma_device;
-
-#endif

arch/mips/include/asm/mach-loongson64/cpu-feature-overrides.h

@@ -43,7 +43,6 @@
 #define cpu_has_vint		0
 #define cpu_has_vtag_icache	0
 #define cpu_has_watch		1
-#define cpu_has_local_ebase	0
 
 #ifdef CONFIG_CPU_LOONGSON3
 #define cpu_has_wsbh		1

arch/mips/include/asm/mach-malta/war.h

@@ -11,7 +11,6 @@
 #define R4600_V1_INDEX_ICACHEOP_WAR	0
 #define R4600_V1_HIT_CACHEOP_WAR	0
 #define R4600_V2_HIT_CACHEOP_WAR	0
-#define R5432_CP0_INTERRUPT_WAR		0
 #define BCM1250_M3_WAR			0
 #define SIBYTE_1956_WAR			0
 #define MIPS4K_ICACHE_REFILL_WAR	1

arch/mips/include/asm/mach-pmcs-msp71xx/war.h

@@ -11,7 +11,6 @@
 #define R4600_V1_INDEX_ICACHEOP_WAR	0
 #define R4600_V1_HIT_CACHEOP_WAR	0
 #define R4600_V2_HIT_CACHEOP_WAR	0
-#define R5432_CP0_INTERRUPT_WAR		0
 #define BCM1250_M3_WAR			0
 #define SIBYTE_1956_WAR			0
 #define MIPS4K_ICACHE_REFILL_WAR	0

arch/mips/include/asm/mach-rc32434/war.h

@@ -11,7 +11,6 @@
 #define R4600_V1_INDEX_ICACHEOP_WAR	0
 #define R4600_V1_HIT_CACHEOP_WAR	0
 #define R4600_V2_HIT_CACHEOP_WAR	0
-#define R5432_CP0_INTERRUPT_WAR		0
 #define BCM1250_M3_WAR			0
 #define SIBYTE_1956_WAR			0
 #define MIPS4K_ICACHE_REFILL_WAR	1

arch/mips/include/asm/mach-rm/war.h

@@ -15,7 +15,6 @@
 #define R4600_V1_INDEX_ICACHEOP_WAR	0
 #define R4600_V1_HIT_CACHEOP_WAR	0
 #define R4600_V2_HIT_CACHEOP_WAR	1
-#define R5432_CP0_INTERRUPT_WAR		0
 #define BCM1250_M3_WAR			0
 #define SIBYTE_1956_WAR			0
 #define MIPS4K_ICACHE_REFILL_WAR	0

arch/mips/include/asm/mach-sibyte/war.h

@@ -11,7 +11,6 @@
 #define R4600_V1_INDEX_ICACHEOP_WAR	0
 #define R4600_V1_HIT_CACHEOP_WAR	0
 #define R4600_V2_HIT_CACHEOP_WAR	0
-#define R5432_CP0_INTERRUPT_WAR		0
 
 #if defined(CONFIG_SB1_PASS_2_WORKAROUNDS)
 

arch/mips/include/asm/mach-tx49xx/war.h

@@ -11,7 +11,6 @@
 #define R4600_V1_INDEX_ICACHEOP_WAR	0
 #define R4600_V1_HIT_CACHEOP_WAR	0
 #define R4600_V2_HIT_CACHEOP_WAR	0
-#define R5432_CP0_INTERRUPT_WAR		0
 #define BCM1250_M3_WAR			0
 #define SIBYTE_1956_WAR			0
 #define MIPS4K_ICACHE_REFILL_WAR	0

arch/mips/include/asm/mipsregs.h

@@ -689,6 +689,9 @@
 #define MIPS_CONF7_IAR		(_ULCAST_(1) << 10)
 #define MIPS_CONF7_AR		(_ULCAST_(1) << 16)
 
+/* Ingenic Config7 bits */
+#define MIPS_CONF7_BTB_LOOP_EN	(_ULCAST_(1) << 4)
+
 /* Config7 Bits specific to MIPS Technologies. */
 
 /* Performance counters implemented Per TC */
@@ -2813,6 +2816,7 @@ __BUILD_SET_C0(status)
 __BUILD_SET_C0(cause)
 __BUILD_SET_C0(config)
 __BUILD_SET_C0(config5)
+__BUILD_SET_C0(config7)
 __BUILD_SET_C0(intcontrol)
 __BUILD_SET_C0(intctl)
 __BUILD_SET_C0(srsmap)

arch/mips/include/asm/module.h

@@ -103,22 +103,16 @@ search_module_dbetables(unsigned long addr)
 #define MODULE_PROC_FAMILY "TX39XX "
 #elif defined CONFIG_CPU_VR41XX
 #define MODULE_PROC_FAMILY "VR41XX "
-#elif defined CONFIG_CPU_R4300
-#define MODULE_PROC_FAMILY "R4300 "
 #elif defined CONFIG_CPU_R4X00
 #define MODULE_PROC_FAMILY "R4X00 "
 #elif defined CONFIG_CPU_TX49XX
 #define MODULE_PROC_FAMILY "TX49XX "
 #elif defined CONFIG_CPU_R5000
 #define MODULE_PROC_FAMILY "R5000 "
-#elif defined CONFIG_CPU_R5432
-#define MODULE_PROC_FAMILY "R5432 "
 #elif defined CONFIG_CPU_R5500
 #define MODULE_PROC_FAMILY "R5500 "
 #elif defined CONFIG_CPU_NEVADA
 #define MODULE_PROC_FAMILY "NEVADA "
-#elif defined CONFIG_CPU_R8000
-#define MODULE_PROC_FAMILY "R8000 "
 #elif defined CONFIG_CPU_R10000
 #define MODULE_PROC_FAMILY "R10000 "
 #elif defined CONFIG_CPU_RM7000

arch/mips/include/asm/octeon/octeon.h

@@ -51,7 +51,7 @@ extern void octeon_setup_delays(void);
 extern void octeon_io_clk_delay(unsigned long);
 
 #define OCTEON_ARGV_MAX_ARGS	64
-#define OCTOEN_SERIAL_LEN	20
+#define OCTEON_SERIAL_LEN	20
 
 struct octeon_boot_descriptor {
 #ifdef __BIG_ENDIAN_BITFIELD
@@ -102,7 +102,7 @@ struct octeon_boot_descriptor {
 	uint16_t chip_type;
 	uint8_t chip_rev_major;
 	uint8_t chip_rev_minor;
-	char board_serial_number[OCTOEN_SERIAL_LEN];
+	char board_serial_number[OCTEON_SERIAL_LEN];
 	uint8_t mac_addr_base[6];
 	uint8_t mac_addr_count;
 	uint64_t cvmx_desc_vaddr;

arch/mips/include/asm/pgtable-32.h

@@ -23,6 +23,24 @@
 #include <asm/highmem.h>
 #endif
 
+/*
+ * Regarding 32-bit MIPS huge page support (and the tradeoff it entails):
+ *
+ *  We use the same huge page sizes as 64-bit MIPS. Assuming a 4KB page size,
+ * our 2-level table layout would normally have a PGD entry cover a contiguous
+ * 4MB virtual address region (pointing to a 4KB PTE page of 1,024 32-bit pte_t
+ * pointers, each pointing to a 4KB physical page). The problem is that 4MB,
+ * spanning both halves of a TLB EntryLo0,1 pair, requires 2MB hardware page
+ * support, not one of the standard supported sizes (1MB,4MB,16MB,...).
+ *  To correct for this, when huge pages are enabled, we halve the number of
+ * pointers a PTE page holds, making its last half go to waste. Correspondingly,
+ * we double the number of PGD pages. Overall, page table memory overhead
+ * increases to match 64-bit MIPS, but PTE lookups remain CPU cache-friendly.
+ *
+ * NOTE: We don't yet support huge pages if extended-addressing is enabled
+ *       (i.e. EVA, XPA, 36-bit Alchemy/Netlogic).
+ */
+
 extern int temp_tlb_entry;
 
 /*
@@ -44,7 +62,12 @@ extern int add_temporary_entry(unsigned long entrylo0, unsigned long entrylo1,
  */
 
 /* PGDIR_SHIFT determines what a third-level page table entry can map */
-#define PGDIR_SHIFT	(2 * PAGE_SHIFT + PTE_ORDER - PTE_T_LOG2)
+#if defined(CONFIG_MIPS_HUGE_TLB_SUPPORT) && !defined(CONFIG_PHYS_ADDR_T_64BIT)
+# define PGDIR_SHIFT	(2 * PAGE_SHIFT + PTE_ORDER - PTE_T_LOG2 - 1)
+#else
+# define PGDIR_SHIFT	(2 * PAGE_SHIFT + PTE_ORDER - PTE_T_LOG2)
+#endif
+
 #define PGDIR_SIZE	(1UL << PGDIR_SHIFT)
 #define PGDIR_MASK	(~(PGDIR_SIZE-1))
 
@@ -52,14 +75,23 @@ extern int add_temporary_entry(unsigned long entrylo0, unsigned long entrylo1,
  * Entries per page directory level: we use two-level, so
  * we don't really have any PUD/PMD directory physically.
  */
-#define __PGD_ORDER	(32 - 3 * PAGE_SHIFT + PGD_T_LOG2 + PTE_T_LOG2)
+#if defined(CONFIG_MIPS_HUGE_TLB_SUPPORT) && !defined(CONFIG_PHYS_ADDR_T_64BIT)
+# define __PGD_ORDER	(32 - 3 * PAGE_SHIFT + PGD_T_LOG2 + PTE_T_LOG2 + 1)
+#else
+# define __PGD_ORDER	(32 - 3 * PAGE_SHIFT + PGD_T_LOG2 + PTE_T_LOG2)
+#endif
+
 #define PGD_ORDER	(__PGD_ORDER >= 0 ? __PGD_ORDER : 0)
 #define PUD_ORDER	aieeee_attempt_to_allocate_pud
-#define PMD_ORDER	1
+#define PMD_ORDER	aieeee_attempt_to_allocate_pmd
 #define PTE_ORDER	0
 
 #define PTRS_PER_PGD	(USER_PTRS_PER_PGD * 2)
-#define PTRS_PER_PTE	((PAGE_SIZE << PTE_ORDER) / sizeof(pte_t))
+#if defined(CONFIG_MIPS_HUGE_TLB_SUPPORT) && !defined(CONFIG_PHYS_ADDR_T_64BIT)
+# define PTRS_PER_PTE	((PAGE_SIZE << PTE_ORDER) / sizeof(pte_t) / 2)
+#else
+# define PTRS_PER_PTE	((PAGE_SIZE << PTE_ORDER) / sizeof(pte_t))
+#endif
 
 #define USER_PTRS_PER_PGD	(0x80000000UL/PGDIR_SIZE)
 #define FIRST_USER_ADDRESS	0UL
@@ -87,7 +119,7 @@ extern int add_temporary_entry(unsigned long entrylo0, unsigned long entrylo1,
 
 extern void load_pgd(unsigned long pg_dir);
 
-extern pte_t invalid_pte_table[PAGE_SIZE/sizeof(pte_t)];
+extern pte_t invalid_pte_table[PTRS_PER_PTE];
 
 /*
  * Empty pgd/pmd entries point to the invalid_pte_table.
@@ -97,7 +129,19 @@ static inline int pmd_none(pmd_t pmd)
 	return pmd_val(pmd) == (unsigned long) invalid_pte_table;
 }
 
-#define pmd_bad(pmd)		(pmd_val(pmd) & ~PAGE_MASK)
+static inline int pmd_bad(pmd_t pmd)
+{
+#ifdef CONFIG_MIPS_HUGE_TLB_SUPPORT
+	/* pmd_huge(pmd) but inline */
+	if (unlikely(pmd_val(pmd) & _PAGE_HUGE))
+		return 0;
+#endif
+
+	if (unlikely(pmd_val(pmd) & ~PAGE_MASK))
+		return 1;
+
+	return 0;
+}
 
 static inline int pmd_present(pmd_t pmd)
 {
@@ -146,6 +190,7 @@ static inline pte_t pfn_pte(unsigned long pfn, pgprot_t prot)
 #else
 #define pte_pfn(x)		((unsigned long)((x).pte >> _PFN_SHIFT))
 #define pfn_pte(pfn, prot)	__pte(((unsigned long long)(pfn) << _PFN_SHIFT) | pgprot_val(prot))
+#define pfn_pmd(pfn, prot)	__pmd(((unsigned long long)(pfn) << _PFN_SHIFT) | pgprot_val(prot))
 #endif
 #endif /* defined(CONFIG_PHYS_ADDR_T_64BIT) && defined(CONFIG_CPU_MIPS32) */
 
@@ -159,6 +204,7 @@ static inline pte_t pfn_pte(unsigned long pfn, pgprot_t prot)
 #define pgd_offset_k(address) pgd_offset(&init_mm, address)
 
 #define pgd_index(address)	(((address) >> PGDIR_SHIFT) & (PTRS_PER_PGD-1))
+#define pmd_index(address)	(((address) >> PMD_SHIFT) & (PTRS_PER_PMD-1))
 
 /* to find an entry in a page-table-directory */
 #define pgd_offset(mm, addr)	((mm)->pgd + pgd_index(addr))
@@ -175,7 +221,7 @@ static inline pte_t pfn_pte(unsigned long pfn, pgprot_t prot)
 	((pte_t *)page_address(pmd_page(*(dir))) + __pte_offset(address))
 #define pte_unmap(pte) ((void)(pte))
 
-#if defined(CONFIG_CPU_R3000) || defined(CONFIG_CPU_TX39XX)
+#if defined(CONFIG_CPU_R3K_TLB)
 
 /* Swap entries must have VALID bit cleared. */
 #define __swp_type(x)			(((x).val >> 10) & 0x1f)
@@ -220,6 +266,6 @@ static inline pte_t pfn_pte(unsigned long pfn, pgprot_t prot)
 
 #endif /* defined(CONFIG_PHYS_ADDR_T_64BIT) && defined(CONFIG_CPU_MIPS32) */
 
-#endif /* defined(CONFIG_CPU_R3000) || defined(CONFIG_CPU_TX39XX) */
+#endif /* defined(CONFIG_CPU_R3K_TLB) */
 
 #endif /* _ASM_PGTABLE_32_H */

arch/mips/include/asm/pgtable-bits.h

@@ -52,6 +52,9 @@ enum pgtable_bits {
 	_PAGE_WRITE_SHIFT,
 	_PAGE_ACCESSED_SHIFT,
 	_PAGE_MODIFIED_SHIFT,
+#if defined(CONFIG_ARCH_HAS_PTE_SPECIAL)
+	_PAGE_SPECIAL_SHIFT,
+#endif
 };
 
 /*
@@ -78,9 +81,12 @@ enum pgtable_bits {
 	_PAGE_WRITE_SHIFT,
 	_PAGE_ACCESSED_SHIFT,
 	_PAGE_MODIFIED_SHIFT,
+#if defined(CONFIG_ARCH_HAS_PTE_SPECIAL)
+	_PAGE_SPECIAL_SHIFT,
+#endif
 };
 
-#elif defined(CONFIG_CPU_R3000) || defined(CONFIG_CPU_TX39XX)
+#elif defined(CONFIG_CPU_R3K_TLB)
 
 /* Page table bits used for r3k systems */
 enum pgtable_bits {
@@ -90,6 +96,9 @@ enum pgtable_bits {
 	_PAGE_WRITE_SHIFT,
 	_PAGE_ACCESSED_SHIFT,
 	_PAGE_MODIFIED_SHIFT,
+#if defined(CONFIG_ARCH_HAS_PTE_SPECIAL)
+	_PAGE_SPECIAL_SHIFT,
+#endif
 
 	/* Used by TLB hardware (placed in EntryLo) */
 	_PAGE_GLOBAL_SHIFT = 8,
@@ -110,9 +119,12 @@ enum pgtable_bits {
 	_PAGE_WRITE_SHIFT,
 	_PAGE_ACCESSED_SHIFT,
 	_PAGE_MODIFIED_SHIFT,
-#if defined(CONFIG_64BIT) && defined(CONFIG_MIPS_HUGE_TLB_SUPPORT)
+#if defined(CONFIG_MIPS_HUGE_TLB_SUPPORT)
 	_PAGE_HUGE_SHIFT,
 #endif
+#if defined(CONFIG_ARCH_HAS_PTE_SPECIAL)
+	_PAGE_SPECIAL_SHIFT,
+#endif
 
 	/* Used by TLB hardware (placed in EntryLo*) */
 #if defined(CONFIG_CPU_HAS_RIXI)
@@ -132,9 +144,14 @@ enum pgtable_bits {
 #define _PAGE_WRITE		(1 << _PAGE_WRITE_SHIFT)
 #define _PAGE_ACCESSED		(1 << _PAGE_ACCESSED_SHIFT)
 #define _PAGE_MODIFIED		(1 << _PAGE_MODIFIED_SHIFT)
-#if defined(CONFIG_64BIT) && defined(CONFIG_MIPS_HUGE_TLB_SUPPORT)
+#if defined(CONFIG_MIPS_HUGE_TLB_SUPPORT)
 # define _PAGE_HUGE		(1 << _PAGE_HUGE_SHIFT)
 #endif
+#if defined(CONFIG_ARCH_HAS_PTE_SPECIAL)
+# define _PAGE_SPECIAL		(1 << _PAGE_SPECIAL_SHIFT)
+#else
+# define _PAGE_SPECIAL		0
+#endif
 
 /* Used by TLB hardware (placed in EntryLo*) */
 #if defined(CONFIG_XPA)
@@ -146,7 +163,7 @@ enum pgtable_bits {
 #define _PAGE_GLOBAL		(1 << _PAGE_GLOBAL_SHIFT)
 #define _PAGE_VALID		(1 << _PAGE_VALID_SHIFT)
 #define _PAGE_DIRTY		(1 << _PAGE_DIRTY_SHIFT)
-#if defined(CONFIG_CPU_R3000) || defined(CONFIG_CPU_TX39XX)
+#if defined(CONFIG_CPU_R3K_TLB)
 # define _CACHE_UNCACHED	(1 << _CACHE_UNCACHED_SHIFT)
 # define _CACHE_MASK		_CACHE_UNCACHED
 # define _PFN_SHIFT		PAGE_SHIFT
@@ -204,7 +221,7 @@ static inline uint64_t pte_to_entrylo(unsigned long pte_val)
 /*
  * Cache attributes
  */
-#if defined(CONFIG_CPU_R3000) || defined(CONFIG_CPU_TX39XX)
+#if defined(CONFIG_CPU_R3K_TLB)
 
 #define _CACHE_CACHABLE_NONCOHERENT 0
 #define _CACHE_UNCACHED_ACCELERATED _CACHE_UNCACHED
@@ -216,13 +233,6 @@ static inline uint64_t pte_to_entrylo(unsigned long pte_val)
 
 #define _CACHE_CACHABLE_NONCOHERENT (5<<_CACHE_SHIFT)
 
-#elif defined(CONFIG_CPU_LOONGSON3)
-
-/* Using COHERENT flag for NONCOHERENT doesn't hurt. */
-
-#define _CACHE_CACHABLE_NONCOHERENT (3<<_CACHE_SHIFT)  /* LOONGSON       */
-#define _CACHE_CACHABLE_COHERENT    (3<<_CACHE_SHIFT)  /* LOONGSON-3     */
-
 #elif defined(CONFIG_MACH_INGENIC)
 
 /* Ingenic uses the WA bit to achieve write-combine memory writes */

arch/mips/include/asm/pgtable.h

@@ -199,7 +199,7 @@ static inline void pte_clear(struct mm_struct *mm, unsigned long addr, pte_t *pt
 static inline void set_pte(pte_t *ptep, pte_t pteval)
 {
 	*ptep = pteval;
-#if !defined(CONFIG_CPU_R3000) && !defined(CONFIG_CPU_TX39XX)
+#if !defined(CONFIG_CPU_R3K_TLB)
 	if (pte_val(pteval) & _PAGE_GLOBAL) {
 		pte_t *buddy = ptep_buddy(ptep);
 		/*
@@ -218,7 +218,7 @@ static inline void set_pte(pte_t *ptep, pte_t pteval)
 static inline void pte_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep)
 {
 	htw_stop();
-#if !defined(CONFIG_CPU_R3000) && !defined(CONFIG_CPU_TX39XX)
+#if !defined(CONFIG_CPU_R3K_TLB)
 	/* Preserve global status for the pair */
 	if (pte_val(*ptep_buddy(ptep)) & _PAGE_GLOBAL)
 		set_pte_at(mm, addr, ptep, __pte(_PAGE_GLOBAL));
@@ -277,6 +277,7 @@ extern pgd_t swapper_pg_dir[];
 static inline int pte_write(pte_t pte)	{ return pte.pte_low & _PAGE_WRITE; }
 static inline int pte_dirty(pte_t pte)	{ return pte.pte_low & _PAGE_MODIFIED; }
 static inline int pte_young(pte_t pte)	{ return pte.pte_low & _PAGE_ACCESSED; }
+static inline int pte_special(pte_t pte) { return pte.pte_low & _PAGE_SPECIAL; }
 
 static inline pte_t pte_wrprotect(pte_t pte)
 {
@@ -337,10 +338,17 @@ static inline pte_t pte_mkyoung(pte_t pte)
 	}
 	return pte;
 }
+
+static inline pte_t pte_mkspecial(pte_t pte)
+{
+	pte.pte_low |= _PAGE_SPECIAL;
+	return pte;
+}
 #else
 static inline int pte_write(pte_t pte)	{ return pte_val(pte) & _PAGE_WRITE; }
 static inline int pte_dirty(pte_t pte)	{ return pte_val(pte) & _PAGE_MODIFIED; }
 static inline int pte_young(pte_t pte)	{ return pte_val(pte) & _PAGE_ACCESSED; }
+static inline int pte_special(pte_t pte) { return pte_val(pte) & _PAGE_SPECIAL; }
 
 static inline pte_t pte_wrprotect(pte_t pte)
 {
@@ -384,6 +392,12 @@ static inline pte_t pte_mkyoung(pte_t pte)
 	return pte;
 }
 
+static inline pte_t pte_mkspecial(pte_t pte)
+{
+	pte_val(pte) |= _PAGE_SPECIAL;
+	return pte;
+}
+
 #ifdef CONFIG_MIPS_HUGE_TLB_SUPPORT
 static inline int pte_huge(pte_t pte)	{ return pte_val(pte) & _PAGE_HUGE; }
 
@@ -394,8 +408,6 @@ static inline pte_t pte_mkhuge(pte_t pte)
 }
 #endif /* CONFIG_MIPS_HUGE_TLB_SUPPORT */
 #endif
-static inline int pte_special(pte_t pte)	{ return 0; }
-static inline pte_t pte_mkspecial(pte_t pte)	{ return pte; }
 
 /*
  * Macro to make mark a page protection value as "uncacheable".	 Note

arch/mips/include/asm/syscall.h

@@ -54,7 +54,7 @@ static inline void mips_syscall_update_nr(struct task_struct *task,
 		task_thread_info(task)->syscall = regs->regs[2];
 }
 
-static inline unsigned long mips_get_syscall_arg(unsigned long *arg,
+static inline void mips_get_syscall_arg(unsigned long *arg,
 	struct task_struct *task, struct pt_regs *regs, unsigned int n)
 {
 	unsigned long usp __maybe_unused = regs->regs[29];
@@ -63,23 +63,24 @@ static inline unsigned long mips_get_syscall_arg(unsigned long *arg,
 	case 0: case 1: case 2: case 3:
 		*arg = regs->regs[4 + n];
 
-		return 0;
+		return;
 
 #ifdef CONFIG_32BIT
 	case 4: case 5: case 6: case 7:
-		return get_user(*arg, (int *)usp + n);
+		get_user(*arg, (int *)usp + n);
+		return;
 #endif
 
 #ifdef CONFIG_64BIT
 	case 4: case 5: case 6: case 7:
 #ifdef CONFIG_MIPS32_O32
 		if (test_tsk_thread_flag(task, TIF_32BIT_REGS))
-			return get_user(*arg, (int *)usp + n);
+			get_user(*arg, (int *)usp + n);
 		else
 #endif
 			*arg = regs->regs[4 + n];
 
-		return 0;
+		return;
 #endif
 
 	default:
@@ -126,21 +127,13 @@ static inline void syscall_get_arguments(struct task_struct *task,
 {
 	unsigned int i = 0;
 	unsigned int n = 6;
-	int ret;
 
 	/* O32 ABI syscall() */
 	if (mips_syscall_is_indirect(task, regs))
 		i++;
 
 	while (n--)
-		ret |= mips_get_syscall_arg(args++, task, regs, i++);
-
-	/*
-	 * No way to communicate an error because this is a void function.
-	 */
-#if 0
-	return ret;
-#endif
+		mips_get_syscall_arg(args++, task, regs, i++);
 }
 
 extern const unsigned long sys_call_table[];

arch/mips/include/asm/vdso.h

@@ -8,6 +8,7 @@
 #define __ASM_VDSO_H
 
 #include <linux/mm_types.h>
+#include <vdso/datapage.h>
 
 #include <asm/barrier.h>
 
@@ -49,84 +50,9 @@ extern struct mips_vdso_image vdso_image_o32;
 extern struct mips_vdso_image vdso_image_n32;
 #endif
 
-/**
- * union mips_vdso_data - Data provided by the kernel for the VDSO.
- * @xtime_sec:		Current real time (seconds part).
- * @xtime_nsec:		Current real time (nanoseconds part, shifted).
- * @wall_to_mono_sec:	Wall-to-monotonic offset (seconds part).
- * @wall_to_mono_nsec:	Wall-to-monotonic offset (nanoseconds part).
- * @seq_count:		Counter to synchronise updates (odd = updating).
- * @cs_shift:		Clocksource shift value.
- * @clock_mode:		Clocksource to use for time functions.
- * @cs_mult:		Clocksource multiplier value.
- * @cs_cycle_last:	Clock cycle value at last update.
- * @cs_mask:		Clocksource mask value.
- * @tz_minuteswest:	Minutes west of Greenwich (from timezone).
- * @tz_dsttime:		Type of DST correction (from timezone).
- *
- * This structure contains data needed by functions within the VDSO. It is
- * populated by the kernel and mapped read-only into user memory. The time
- * fields are mirrors of internal data from the timekeeping infrastructure.
- *
- * Note: Care should be taken when modifying as the layout must remain the same
- * for both 64- and 32-bit (for 32-bit userland on 64-bit kernel).
- */
 union mips_vdso_data {
-	struct {
-		u64 xtime_sec;
-		u64 xtime_nsec;
-		u64 wall_to_mono_sec;
-		u64 wall_to_mono_nsec;
-		u32 seq_count;
-		u32 cs_shift;
-		u8 clock_mode;
-		u32 cs_mult;
-		u64 cs_cycle_last;
-		u64 cs_mask;
-		s32 tz_minuteswest;
-		s32 tz_dsttime;
-	};
-
+	struct vdso_data data[CS_BASES];
 	u8 page[PAGE_SIZE];
 };
 
-static inline u32 vdso_data_read_begin(const union mips_vdso_data *data)
-{
-	u32 seq;
-
-	while (true) {
-		seq = READ_ONCE(data->seq_count);
-		if (likely(!(seq & 1))) {
-			/* Paired with smp_wmb() in vdso_data_write_*(). */
-			smp_rmb();
-			return seq;
-		}
-
-		cpu_relax();
-	}
-}
-
-static inline bool vdso_data_read_retry(const union mips_vdso_data *data,
-					u32 start_seq)
-{
-	/* Paired with smp_wmb() in vdso_data_write_*(). */
-	smp_rmb();
-	return unlikely(data->seq_count != start_seq);
-}
-
-static inline void vdso_data_write_begin(union mips_vdso_data *data)
-{
-	++data->seq_count;
-
-	/* Ensure sequence update is written before other data page values. */
-	smp_wmb();
-}
-
-static inline void vdso_data_write_end(union mips_vdso_data *data)
-{
-	/* Ensure data values are written before updating sequence again. */
-	smp_wmb();
-	++data->seq_count;
-}
-
 #endif /* __ASM_VDSO_H */

arch/mips/include/asm/vdso/gettimeofday.h

+/*
+ * Copyright (C) 2018 ARM Limited
+ * Copyright (C) 2015 Imagination Technologies
+ * Author: Alex Smith <alex.smith@imgtec.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ */
+#ifndef __ASM_VDSO_GETTIMEOFDAY_H
+#define __ASM_VDSO_GETTIMEOFDAY_H
+
+#ifndef __ASSEMBLY__
+
+#include <linux/compiler.h>
+#include <linux/time.h>
+
+#include <asm/vdso/vdso.h>
+#include <asm/clocksource.h>
+#include <asm/io.h>
+#include <asm/unistd.h>
+#include <asm/vdso.h>
+
+#define VDSO_HAS_CLOCK_GETRES		1
+
+#ifdef CONFIG_MIPS_CLOCK_VSYSCALL
+
+static __always_inline long gettimeofday_fallback(
+				struct __kernel_old_timeval *_tv,
+				struct timezone *_tz)
+{
+	register struct timezone *tz asm("a1") = _tz;
+	register struct __kernel_old_timeval *tv asm("a0") = _tv;
+	register long ret asm("v0");
+	register long nr asm("v0") = __NR_gettimeofday;
+	register long error asm("a3");
+
+	asm volatile(
+	"       syscall\n"
+	: "=r" (ret), "=r" (error)
+	: "r" (tv), "r" (tz), "r" (nr)
+	: "$1", "$3", "$8", "$9", "$10", "$11", "$12", "$13",
+	  "$14", "$15", "$24", "$25", "hi", "lo", "memory");
+
+	return error ? -ret : ret;
+}
+
+#else
+
+static __always_inline long gettimeofday_fallback(
+				struct __kernel_old_timeval *_tv,
+				struct timezone *_tz)
+{
+	return -1;
+}
+
+#endif
+
+static __always_inline long clock_gettime_fallback(
+					clockid_t _clkid,
+					struct __kernel_timespec *_ts)
+{
+	register struct __kernel_timespec *ts asm("a1") = _ts;
+	register clockid_t clkid asm("a0") = _clkid;
+	register long ret asm("v0");
+#if _MIPS_SIM == _MIPS_SIM_ABI64
+	register long nr asm("v0") = __NR_clock_gettime;
+#else
+	register long nr asm("v0") = __NR_clock_gettime64;
+#endif
+	register long error asm("a3");
+
+	asm volatile(
+	"       syscall\n"
+	: "=r" (ret), "=r" (error)
+	: "r" (clkid), "r" (ts), "r" (nr)
+	: "$1", "$3", "$8", "$9", "$10", "$11", "$12", "$13",
+	  "$14", "$15", "$24", "$25", "hi", "lo", "memory");
+
+	return error ? -ret : ret;
+}
+
+static __always_inline int clock_getres_fallback(
+					clockid_t _clkid,
+					struct __kernel_timespec *_ts)
+{
+	register struct __kernel_timespec *ts asm("a1") = _ts;
+	register clockid_t clkid asm("a0") = _clkid;
+	register long ret asm("v0");
+#if _MIPS_SIM == _MIPS_SIM_ABI64
+	register long nr asm("v0") = __NR_clock_getres;
+#else
+	register long nr asm("v0") = __NR_clock_getres_time64;
+#endif
+	register long error asm("a3");
+
+	asm volatile(
+	"       syscall\n"
+	: "=r" (ret), "=r" (error)
+	: "r" (clkid), "r" (ts), "r" (nr)
+	: "$1", "$3", "$8", "$9", "$10", "$11", "$12", "$13",
+	  "$14", "$15", "$24", "$25", "hi", "lo", "memory");
+
+	return error ? -ret : ret;
+}
+
+#if _MIPS_SIM != _MIPS_SIM_ABI64
+
+#define VDSO_HAS_32BIT_FALLBACK	1
+
+static __always_inline long clock_gettime32_fallback(
+					clockid_t _clkid,
+					struct old_timespec32 *_ts)
+{
+	register struct old_timespec32 *ts asm("a1") = _ts;
+	register clockid_t clkid asm("a0") = _clkid;
+	register long ret asm("v0");
+	register long nr asm("v0") = __NR_clock_gettime;
+	register long error asm("a3");
+
+	asm volatile(
+	"       syscall\n"
+	: "=r" (ret), "=r" (error)
+	: "r" (clkid), "r" (ts), "r" (nr)
+	: "$1", "$3", "$8", "$9", "$10", "$11", "$12", "$13",
+	  "$14", "$15", "$24", "$25", "hi", "lo", "memory");
+
+	return error ? -ret : ret;
+}
+
+static __always_inline int clock_getres32_fallback(
+					clockid_t _clkid,
+					struct old_timespec32 *_ts)
+{
+	register struct old_timespec32 *ts asm("a1") = _ts;
+	register clockid_t clkid asm("a0") = _clkid;
+	register long ret asm("v0");
+	register long nr asm("v0") = __NR_clock_getres;
+	register long error asm("a3");
+
+	asm volatile(
+	"       syscall\n"
+	: "=r" (ret), "=r" (error)
+	: "r" (clkid), "r" (ts), "r" (nr)
+	: "$1", "$3", "$8", "$9", "$10", "$11", "$12", "$13",
+	  "$14", "$15", "$24", "$25", "hi", "lo", "memory");
+
+	return error ? -ret : ret;
+}
+#endif
+
+#ifdef CONFIG_CSRC_R4K
+
+static __always_inline u64 read_r4k_count(void)
+{
+	unsigned int count;
+
+	__asm__ __volatile__(
+	"	.set push\n"
+	"	.set mips32r2\n"
+	"	rdhwr	%0, $2\n"
+	"	.set pop\n"
+	: "=r" (count));
+
+	return count;
+}
+
+#endif
+
+#ifdef CONFIG_CLKSRC_MIPS_GIC
+
+static __always_inline u64 read_gic_count(const struct vdso_data *data)
+{
+	void __iomem *gic = get_gic(data);
+	u32 hi, hi2, lo;
+
+	do {
+		hi = __raw_readl(gic + sizeof(lo));
+		lo = __raw_readl(gic);
+		hi2 = __raw_readl(gic + sizeof(lo));
+	} while (hi2 != hi);
+
+	return (((u64)hi) << 32) + lo;
+}
+
+#endif
+
+static __always_inline u64 __arch_get_hw_counter(s32 clock_mode)
+{
+#ifdef CONFIG_CLKSRC_MIPS_GIC
+	const struct vdso_data *data = get_vdso_data();
+#endif
+	u64 cycle_now;
+
+	switch (clock_mode) {
+#ifdef CONFIG_CSRC_R4K
+	case VDSO_CLOCK_R4K:
+		cycle_now = read_r4k_count();
+		break;
+#endif
+#ifdef CONFIG_CLKSRC_MIPS_GIC
+	case VDSO_CLOCK_GIC:
+		cycle_now = read_gic_count(data);
+		break;
+#endif
+	default:
+		cycle_now = 0;
+		break;
+	}
+
+	return cycle_now;
+}
+
+static __always_inline const struct vdso_data *__arch_get_vdso_data(void)
+{
+	return get_vdso_data();
+}
+
+#endif /* !__ASSEMBLY__ */
+
+#endif /* __ASM_VDSO_GETTIMEOFDAY_H */

arch/mips/vdso/vdso.h → arch/mips/include/asm/vdso/vdso.h

@@ -6,17 +6,6 @@
 
 #include <asm/sgidefs.h>
 
-#if _MIPS_SIM != _MIPS_SIM_ABI64 && defined(CONFIG_64BIT)
-
-/* Building 32-bit VDSO for the 64-bit kernel. Fake a 32-bit Kconfig. */
-#define BUILD_VDSO32_64
-#undef CONFIG_64BIT
-#define CONFIG_32BIT 1
-#ifndef __ASSEMBLY__
-#include <asm-generic/atomic64.h>
-#endif
-#endif
-
 #ifndef __ASSEMBLY__
 
 #include <asm/asm.h>
@@ -69,14 +58,14 @@ static inline unsigned long get_vdso_base(void)
 	return addr;
 }
 
-static inline const union mips_vdso_data *get_vdso_data(void)
+static inline const struct vdso_data *get_vdso_data(void)
 {
-	return (const union mips_vdso_data *)(get_vdso_base() - PAGE_SIZE);
+	return (const struct vdso_data *)(get_vdso_base() - PAGE_SIZE);
 }
 
 #ifdef CONFIG_CLKSRC_MIPS_GIC
 
-static inline void __iomem *get_gic(const union mips_vdso_data *data)
+static inline void __iomem *get_gic(const struct vdso_data *data)
 {
 	return (void __iomem *)data - PAGE_SIZE;
 }

arch/mips/include/asm/vdso/vsyscall.h

+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ASM_VDSO_VSYSCALL_H
+#define __ASM_VDSO_VSYSCALL_H
+
+#ifndef __ASSEMBLY__
+
+#include <linux/timekeeper_internal.h>
+#include <vdso/datapage.h>
+
+extern struct vdso_data *vdso_data;
+
+/*
+ * Update the vDSO data page to keep in sync with kernel timekeeping.
+ */
+static __always_inline
+struct vdso_data *__mips_get_k_vdso_data(void)
+{
+	return vdso_data;
+}
+#define __arch_get_k_vdso_data __mips_get_k_vdso_data
+
+static __always_inline
+int __mips_get_clock_mode(struct timekeeper *tk)
+{
+	u32 clock_mode = tk->tkr_mono.clock->archdata.vdso_clock_mode;
+
+	return clock_mode;
+}
+#define __arch_get_clock_mode __mips_get_clock_mode
+
+static __always_inline
+int __mips_use_vsyscall(struct vdso_data *vdata)
+{
+	return (vdata[CS_HRES_COARSE].clock_mode != VDSO_CLOCK_NONE);
+}
+#define __arch_use_vsyscall __mips_use_vsyscall
+
+/* The asm-generic header needs to be included after the definitions above */
+#include <asm-generic/vdso/vsyscall.h>
+
+#endif /* !__ASSEMBLY__ */
+
+#endif /* __ASM_VDSO_VSYSCALL_H */

arch/mips/include/asm/war.h

@@ -128,19 +128,6 @@
 #error Check setting of R4600_V2_HIT_CACHEOP_WAR for your platform
 #endif
 
-/*
- * When an interrupt happens on a CP0 register read instruction, CPU may
- * lock up or read corrupted values of CP0 registers after it enters
- * the exception handler.
- *
- * This workaround makes sure that we read a "safe" CP0 register as the
- * first thing in the exception handler, which breaks one of the
- * pre-conditions for this problem.
- */
-#ifndef R5432_CP0_INTERRUPT_WAR
-#error Check setting of R5432_CP0_INTERRUPT_WAR for your platform
-#endif
-
 /*
  * Workaround for the Sibyte M3 errata the text of which can be found at
  *

arch/mips/jz4740/Makefile

@@ -5,15 +5,10 @@
 
 # Object file lists.
 
-obj-y += prom.o time.o reset.o setup.o \
-	platform.o timer.o
+obj-y += prom.o time.o reset.o setup.o timer.o
 
 CFLAGS_setup.o = -I$(src)/../../../scripts/dtc/libfdt
 
-# board specific support
-
-obj-$(CONFIG_JZ4740_QI_LB60)	+= board-qi_lb60.o
-
 # PM support
 
 obj-$(CONFIG_PM) += pm.o

arch/mips/jz4740/platform.c

-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- *  Copyright (C) 2009-2010, Lars-Peter Clausen <lars@metafoo.de>
- *  JZ4740 platform devices
- */
-
-#include <linux/clk.h>
-#include <linux/device.h>
-#include <linux/kernel.h>
-#include <linux/platform_device.h>
-#include <linux/resource.h>
-
-#include <linux/dma-mapping.h>
-
-#include <linux/usb/musb.h>
-
-#include <asm/mach-jz4740/platform.h>
-#include <asm/mach-jz4740/base.h>
-#include <asm/mach-jz4740/irq.h>
-
-#include <linux/serial_core.h>
-#include <linux/serial_8250.h>
-
-/* USB Device Controller */
-struct platform_device jz4740_udc_xceiv_device = {
-	.name = "usb_phy_generic",
-	.id   = 0,
-};
-
-static struct resource jz4740_udc_resources[] = {
-	[0] = {
-		.start = JZ4740_UDC_BASE_ADDR,
-		.end   = JZ4740_UDC_BASE_ADDR + 0x10000 - 1,
-		.flags = IORESOURCE_MEM,
-	},
-	[1] = {
-		.start = JZ4740_IRQ_UDC,
-		.end   = JZ4740_IRQ_UDC,
-		.flags = IORESOURCE_IRQ,
-		.name  = "mc",
-	},
-};
-
-struct platform_device jz4740_udc_device = {
-	.name = "musb-jz4740",
-	.id   = -1,
-	.dev  = {
-		.dma_mask          = &jz4740_udc_device.dev.coherent_dma_mask,
-		.coherent_dma_mask = DMA_BIT_MASK(32),
-	},
-	.num_resources = ARRAY_SIZE(jz4740_udc_resources),
-	.resource      = jz4740_udc_resources,
-};
-
-/* MMC/SD controller */
-static struct resource jz4740_mmc_resources[] = {
-	{
-		.start	= JZ4740_MSC_BASE_ADDR,
-		.end	= JZ4740_MSC_BASE_ADDR + 0x1000 - 1,
-		.flags	= IORESOURCE_MEM,
-	},
-	{
-		.start	= JZ4740_IRQ_MSC,
-		.end	= JZ4740_IRQ_MSC,
-		.flags	= IORESOURCE_IRQ,
-	}
-};
-
-struct platform_device jz4740_mmc_device = {
-	.name		= "jz4740-mmc",
-	.id		= 0,
-	.dev = {
-		.dma_mask = &jz4740_mmc_device.dev.coherent_dma_mask,
-		.coherent_dma_mask = DMA_BIT_MASK(32),
-	},
-	.num_resources	= ARRAY_SIZE(jz4740_mmc_resources),
-	.resource	= jz4740_mmc_resources,
-};
-
-/* I2C controller */
-static struct resource jz4740_i2c_resources[] = {
-	{
-		.start	= JZ4740_I2C_BASE_ADDR,
-		.end	= JZ4740_I2C_BASE_ADDR + 0x1000 - 1,
-		.flags	= IORESOURCE_MEM,
-	},
-	{
-		.start	= JZ4740_IRQ_I2C,
-		.end	= JZ4740_IRQ_I2C,
-		.flags	= IORESOURCE_IRQ,
-	}
-};
-
-struct platform_device jz4740_i2c_device = {
-	.name		= "jz4740-i2c",
-	.id		= 0,
-	.num_resources	= ARRAY_SIZE(jz4740_i2c_resources),
-	.resource	= jz4740_i2c_resources,
-};
-
-/* NAND controller */
-static struct resource jz4740_nand_resources[] = {
-	{
-		.name	= "mmio",
-		.start	= JZ4740_EMC_BASE_ADDR,
-		.end	= JZ4740_EMC_BASE_ADDR + 0x1000 - 1,
-		.flags	= IORESOURCE_MEM,
-	},
-	{
-		.name	= "bank1",
-		.start	= 0x18000000,
-		.end	= 0x180C0000 - 1,
-		.flags = IORESOURCE_MEM,
-	},
-	{
-		.name	= "bank2",
-		.start	= 0x14000000,
-		.end	= 0x140C0000 - 1,
-		.flags = IORESOURCE_MEM,
-	},
-	{
-		.name	= "bank3",
-		.start	= 0x0C000000,
-		.end	= 0x0C0C0000 - 1,
-		.flags = IORESOURCE_MEM,
-	},
-	{
-		.name	= "bank4",
-		.start	= 0x08000000,
-		.end	= 0x080C0000 - 1,
-		.flags = IORESOURCE_MEM,
-	},
-};
-
-struct platform_device jz4740_nand_device = {
-	.name = "jz4740-nand",
-	.num_resources = ARRAY_SIZE(jz4740_nand_resources),
-	.resource = jz4740_nand_resources,
-};
-
-/* LCD controller */
-static struct resource jz4740_framebuffer_resources[] = {
-	{
-		.start	= JZ4740_LCD_BASE_ADDR,
-		.end	= JZ4740_LCD_BASE_ADDR + 0x1000 - 1,
-		.flags	= IORESOURCE_MEM,
-	},
-};
-
-struct platform_device jz4740_framebuffer_device = {
-	.name		= "jz4740-fb",
-	.id		= -1,
-	.num_resources	= ARRAY_SIZE(jz4740_framebuffer_resources),
-	.resource	= jz4740_framebuffer_resources,
-	.dev = {
-		.dma_mask = &jz4740_framebuffer_device.dev.coherent_dma_mask,
-		.coherent_dma_mask = DMA_BIT_MASK(32),
-	},
-};
-
-/* I2S controller */
-static struct resource jz4740_i2s_resources[] = {
-	{
-		.start	= JZ4740_AIC_BASE_ADDR,
-		.end	= JZ4740_AIC_BASE_ADDR + 0x38 - 1,
-		.flags	= IORESOURCE_MEM,
-	},
-};
-
-struct platform_device jz4740_i2s_device = {
-	.name		= "jz4740-i2s",
-	.id		= -1,
-	.num_resources	= ARRAY_SIZE(jz4740_i2s_resources),
-	.resource	= jz4740_i2s_resources,
-};
-
-/* PCM */
-struct platform_device jz4740_pcm_device = {
-	.name		= "jz4740-pcm-audio",
-	.id		= -1,
-};
-
-/* Codec */
-static struct resource jz4740_codec_resources[] = {
-	{
-		.start	= JZ4740_AIC_BASE_ADDR + 0x80,
-		.end	= JZ4740_AIC_BASE_ADDR + 0x88 - 1,
-		.flags	= IORESOURCE_MEM,
-	},
-};
-
-struct platform_device jz4740_codec_device = {
-	.name		= "jz4740-codec",
-	.id		= -1,
-	.num_resources	= ARRAY_SIZE(jz4740_codec_resources),
-	.resource	= jz4740_codec_resources,
-};
-
-/* ADC controller */
-static struct resource jz4740_adc_resources[] = {
-	{
-		.start	= JZ4740_SADC_BASE_ADDR,
-		.end	= JZ4740_SADC_BASE_ADDR + 0x30,
-		.flags	= IORESOURCE_MEM,
-	},
-	{
-		.start	= JZ4740_IRQ_SADC,
-		.end	= JZ4740_IRQ_SADC,
-		.flags	= IORESOURCE_IRQ,
-	},
-	{
-		.start	= JZ4740_IRQ_ADC_BASE,
-		.end	= JZ4740_IRQ_ADC_BASE,
-		.flags	= IORESOURCE_IRQ,
-	},
-};
-
-struct platform_device jz4740_adc_device = {
-	.name		= "jz4740-adc",
-	.id		= -1,
-	.num_resources	= ARRAY_SIZE(jz4740_adc_resources),
-	.resource	= jz4740_adc_resources,
-};
-
-/* PWM */
-struct platform_device jz4740_pwm_device = {
-	.name = "jz4740-pwm",
-	.id   = -1,
-};
-
-/* DMA */
-static struct resource jz4740_dma_resources[] = {
-	{
-		.start	= JZ4740_DMAC_BASE_ADDR,
-		.end	= JZ4740_DMAC_BASE_ADDR + 0x400 - 1,
-		.flags	= IORESOURCE_MEM,
-	},
-	{
-		.start	= JZ4740_IRQ_DMAC,
-		.end	= JZ4740_IRQ_DMAC,
-		.flags	= IORESOURCE_IRQ,
-	},
-};
-
-struct platform_device jz4740_dma_device = {
-	.name		= "jz4740-dma",
-	.id		= -1,
-	.num_resources	= ARRAY_SIZE(jz4740_dma_resources),
-	.resource	= jz4740_dma_resources,
-};

arch/mips/jz4740/prom.c

@@ -4,15 +4,10 @@
  *  JZ4740 SoC prom code
  */
 
-#include <linux/kernel.h>
 #include <linux/init.h>
-#include <linux/string.h>
-
-#include <linux/serial_reg.h>
 
 #include <asm/bootinfo.h>
 #include <asm/fw/fw.h>
-#include <asm/mach-jz4740/base.h>
 
 void __init prom_init(void)
 {

arch/mips/jz4740/setup.c

@@ -15,10 +15,9 @@
 #include <asm/bootinfo.h>
 #include <asm/prom.h>
 
-#include <asm/mach-jz4740/base.h>
-
 #include "reset.h"
 
+#define JZ4740_EMC_BASE_ADDR 0x13010000
 
 #define JZ4740_EMC_SDRAM_CTRL 0x80
 
@@ -45,6 +44,8 @@ static void __init jz4740_detect_mem(void)
 
 static unsigned long __init get_board_mach_type(const void *fdt)
 {
+	if (!fdt_node_check_compatible(fdt, 0, "ingenic,x1000"))
+		return MACH_INGENIC_X1000;
 	if (!fdt_node_check_compatible(fdt, 0, "ingenic,jz4780"))
 		return MACH_INGENIC_JZ4780;
 	if (!fdt_node_check_compatible(fdt, 0, "ingenic,jz4770"))
@@ -85,6 +86,8 @@ void __init device_tree_init(void)
 const char *get_system_type(void)
 {
 	switch (mips_machtype) {
+	case MACH_INGENIC_X1000:
+		return "X1000";
 	case MACH_INGENIC_JZ4780:
 		return "JZ4780";
 	case MACH_INGENIC_JZ4770:

arch/mips/jz4740/time.c

@@ -4,161 +4,14 @@
  *  JZ4740 platform time support
  */
 
-#include <linux/clk.h>
 #include <linux/clk-provider.h>
-#include <linux/interrupt.h>
-#include <linux/kernel.h>
-#include <linux/time.h>
+#include <linux/clocksource.h>
 
-#include <linux/clockchips.h>
-#include <linux/sched_clock.h>
-
-#include <asm/mach-jz4740/irq.h>
 #include <asm/mach-jz4740/timer.h>
-#include <asm/time.h>
-
-#define TIMER_CLOCKEVENT 0
-#define TIMER_CLOCKSOURCE 1
-
-static uint16_t jz4740_jiffies_per_tick;
-
-static u64 jz4740_clocksource_read(struct clocksource *cs)
-{
-	return jz4740_timer_get_count(TIMER_CLOCKSOURCE);
-}
-
-static struct clocksource jz4740_clocksource = {
-	.name = "jz4740-timer",
-	.rating = 200,
-	.read = jz4740_clocksource_read,
-	.mask = CLOCKSOURCE_MASK(16),
-	.flags = CLOCK_SOURCE_IS_CONTINUOUS,
-};
-
-static u64 notrace jz4740_read_sched_clock(void)
-{
-	return jz4740_timer_get_count(TIMER_CLOCKSOURCE);
-}
-
-static irqreturn_t jz4740_clockevent_irq(int irq, void *devid)
-{
-	struct clock_event_device *cd = devid;
-
-	jz4740_timer_ack_full(TIMER_CLOCKEVENT);
-
-	if (!clockevent_state_periodic(cd))
-		jz4740_timer_disable(TIMER_CLOCKEVENT);
-
-	cd->event_handler(cd);
-
-	return IRQ_HANDLED;
-}
-
-static int jz4740_clockevent_set_periodic(struct clock_event_device *evt)
-{
-	jz4740_timer_set_count(TIMER_CLOCKEVENT, 0);
-	jz4740_timer_set_period(TIMER_CLOCKEVENT, jz4740_jiffies_per_tick);
-	jz4740_timer_irq_full_enable(TIMER_CLOCKEVENT);
-	jz4740_timer_enable(TIMER_CLOCKEVENT);
-
-	return 0;
-}
-
-static int jz4740_clockevent_resume(struct clock_event_device *evt)
-{
-	jz4740_timer_irq_full_enable(TIMER_CLOCKEVENT);
-	jz4740_timer_enable(TIMER_CLOCKEVENT);
-
-	return 0;
-}
-
-static int jz4740_clockevent_shutdown(struct clock_event_device *evt)
-{
-	jz4740_timer_disable(TIMER_CLOCKEVENT);
-
-	return 0;
-}
-
-static int jz4740_clockevent_set_next(unsigned long evt,
-	struct clock_event_device *cd)
-{
-	jz4740_timer_set_count(TIMER_CLOCKEVENT, 0);
-	jz4740_timer_set_period(TIMER_CLOCKEVENT, evt);
-	jz4740_timer_enable(TIMER_CLOCKEVENT);
-
-	return 0;
-}
-
-static struct clock_event_device jz4740_clockevent = {
-	.name = "jz4740-timer",
-	.features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT,
-	.set_next_event = jz4740_clockevent_set_next,
-	.set_state_shutdown = jz4740_clockevent_shutdown,
-	.set_state_periodic = jz4740_clockevent_set_periodic,
-	.set_state_oneshot = jz4740_clockevent_shutdown,
-	.tick_resume = jz4740_clockevent_resume,
-	.rating = 200,
-#ifdef CONFIG_MACH_JZ4740
-	.irq = JZ4740_IRQ_TCU0,
-#endif
-#if defined(CONFIG_MACH_JZ4770) || defined(CONFIG_MACH_JZ4780)
-	.irq = JZ4780_IRQ_TCU2,
-#endif
-};
-
-static struct irqaction timer_irqaction = {
-	.handler	= jz4740_clockevent_irq,
-	.flags		= IRQF_PERCPU | IRQF_TIMER,
-	.name		= "jz4740-timerirq",
-	.dev_id		= &jz4740_clockevent,
-};
 
 void __init plat_time_init(void)
 {
-	int ret;
-	uint32_t clk_rate;
-	uint16_t ctrl;
-	struct clk *ext_clk;
-
 	of_clk_init(NULL);
 	jz4740_timer_init();
-
-	ext_clk = clk_get(NULL, "ext");
-	if (IS_ERR(ext_clk))
-		panic("unable to get ext clock");
-	clk_rate = clk_get_rate(ext_clk) >> 4;
-	clk_put(ext_clk);
-
-	jz4740_jiffies_per_tick = DIV_ROUND_CLOSEST(clk_rate, HZ);
-
-	clockevent_set_clock(&jz4740_clockevent, clk_rate);
-	jz4740_clockevent.min_delta_ns = clockevent_delta2ns(100, &jz4740_clockevent);
-	jz4740_clockevent.min_delta_ticks = 100;
-	jz4740_clockevent.max_delta_ns = clockevent_delta2ns(0xffff, &jz4740_clockevent);
-	jz4740_clockevent.max_delta_ticks = 0xffff;
-	jz4740_clockevent.cpumask = cpumask_of(0);
-
-	clockevents_register_device(&jz4740_clockevent);
-
-	ret = clocksource_register_hz(&jz4740_clocksource, clk_rate);
-
-	if (ret)
-		printk(KERN_ERR "Failed to register clocksource: %d\n", ret);
-
-	sched_clock_register(jz4740_read_sched_clock, 16, clk_rate);
-
-	setup_irq(jz4740_clockevent.irq, &timer_irqaction);
-
-	ctrl = JZ_TIMER_CTRL_PRESCALE_16 | JZ_TIMER_CTRL_SRC_EXT;
-
-	jz4740_timer_set_ctrl(TIMER_CLOCKEVENT, ctrl);
-	jz4740_timer_set_ctrl(TIMER_CLOCKSOURCE, ctrl);
-
-	jz4740_timer_set_period(TIMER_CLOCKEVENT, jz4740_jiffies_per_tick);
-	jz4740_timer_irq_full_enable(TIMER_CLOCKEVENT);
-
-	jz4740_timer_set_period(TIMER_CLOCKSOURCE, 0xffff);
-
-	jz4740_timer_enable(TIMER_CLOCKEVENT);
-	jz4740_timer_enable(TIMER_CLOCKSOURCE);
+	timer_probe();
 }

arch/mips/kernel/branch.c

@@ -58,6 +58,7 @@ int __mm_isBranchInstr(struct pt_regs *regs, struct mm_decoded_insn dec_insn,
 		       unsigned long *contpc)
 {
 	union mips_instruction insn = (union mips_instruction)dec_insn.insn;
+	int __maybe_unused bc_false = 0;
 
 	if (!cpu_has_mmips)
 		return 0;
@@ -139,7 +140,6 @@ int __mm_isBranchInstr(struct pt_regs *regs, struct mm_decoded_insn dec_insn,
 #ifdef CONFIG_MIPS_FP_SUPPORT
 		case mm_bc2f_op:
 		case mm_bc1f_op: {
-			int bc_false = 0;
 			unsigned int fcr31;
 			unsigned int bit;
 

arch/mips/kernel/cpu-probe.c

@@ -1384,15 +1384,6 @@ static inline void cpu_probe_legacy(struct cpuinfo_mips *c, unsigned int cpu)
 			break;
 		}
 		break;
-	case PRID_IMP_R4300:
-		c->cputype = CPU_R4300;
-		__cpu_name[cpu] = "R4300";
-		set_isa(c, MIPS_CPU_ISA_III);
-		c->fpu_msk31 |= FPU_CSR_CONDX;
-		c->options = R4K_OPTS | MIPS_CPU_FPU | MIPS_CPU_32FPR |
-			     MIPS_CPU_LLSC;
-		c->tlbsize = 32;
-		break;
 	case PRID_IMP_R4600:
 		c->cputype = CPU_R4600;
 		__cpu_name[cpu] = "R4600";
@@ -1468,14 +1459,6 @@ static inline void cpu_probe_legacy(struct cpuinfo_mips *c, unsigned int cpu)
 			     MIPS_CPU_LLSC;
 		c->tlbsize = 48;
 		break;
-	case PRID_IMP_R5432:
-		c->cputype = CPU_R5432;
-		__cpu_name[cpu] = "R5432";
-		set_isa(c, MIPS_CPU_ISA_IV);
-		c->options = R4K_OPTS | MIPS_CPU_FPU | MIPS_CPU_32FPR |
-			     MIPS_CPU_WATCH | MIPS_CPU_LLSC;
-		c->tlbsize = 48;
-		break;
 	case PRID_IMP_R5500:
 		c->cputype = CPU_R5500;
 		__cpu_name[cpu] = "R5500";
@@ -1508,15 +1491,6 @@ static inline void cpu_probe_legacy(struct cpuinfo_mips *c, unsigned int cpu)
 		 */
 		c->tlbsize = (read_c0_info() & (1 << 29)) ? 64 : 48;
 		break;
-	case PRID_IMP_R8000:
-		c->cputype = CPU_R8000;
-		__cpu_name[cpu] = "RM8000";
-		set_isa(c, MIPS_CPU_ISA_IV);
-		c->options = MIPS_CPU_TLB | MIPS_CPU_4KEX |
-			     MIPS_CPU_FPU | MIPS_CPU_32FPR |
-			     MIPS_CPU_LLSC;
-		c->tlbsize = 384;      /* has weird TLB: 3-way x 128 */
-		break;
 	case PRID_IMP_R10000:
 		c->cputype = CPU_R10000;
 		__cpu_name[cpu] = "R10000";
@@ -1573,6 +1547,8 @@ static inline void cpu_probe_legacy(struct cpuinfo_mips *c, unsigned int cpu)
 			__cpu_name[cpu] = "ICT Loongson-3";
 			set_elf_platform(cpu, "loongson3a");
 			set_isa(c, MIPS_CPU_ISA_M64R1);
+			c->ases |= (MIPS_ASE_LOONGSON_MMI | MIPS_ASE_LOONGSON_CAM |
+				MIPS_ASE_LOONGSON_EXT);
 			break;
 		case PRID_REV_LOONGSON3B_R1:
 		case PRID_REV_LOONGSON3B_R2:
@@ -1580,6 +1556,8 @@ static inline void cpu_probe_legacy(struct cpuinfo_mips *c, unsigned int cpu)
 			__cpu_name[cpu] = "ICT Loongson-3";
 			set_elf_platform(cpu, "loongson3b");
 			set_isa(c, MIPS_CPU_ISA_M64R1);
+			c->ases |= (MIPS_ASE_LOONGSON_MMI | MIPS_ASE_LOONGSON_CAM |
+				MIPS_ASE_LOONGSON_EXT);
 			break;
 		}
 
@@ -1946,6 +1924,8 @@ static inline void cpu_probe_loongson(struct cpuinfo_mips *c, unsigned int cpu)
 		decode_configs(c);
 		c->options |= MIPS_CPU_FTLB | MIPS_CPU_TLBINV | MIPS_CPU_LDPTE;
 		c->writecombine = _CACHE_UNCACHED_ACCELERATED;
+		c->ases |= (MIPS_ASE_LOONGSON_MMI | MIPS_ASE_LOONGSON_CAM |
+			MIPS_ASE_LOONGSON_EXT | MIPS_ASE_LOONGSON_EXT2);
 		break;
 	default:
 		panic("Unknown Loongson Processor ID!");
@@ -1956,14 +1936,29 @@ static inline void cpu_probe_loongson(struct cpuinfo_mips *c, unsigned int cpu)
 static inline void cpu_probe_ingenic(struct cpuinfo_mips *c, unsigned int cpu)
 {
 	decode_configs(c);
-	/* JZRISC does not implement the CP0 counter. */
+
+	/*
+	 * XBurst misses a config2 register, so config3 decode was skipped in
+	 * decode_configs().
+	 */
+	decode_config3(c);
+
+	/* XBurst does not implement the CP0 counter. */
 	c->options &= ~MIPS_CPU_COUNTER;
 	BUG_ON(!__builtin_constant_p(cpu_has_counter) || cpu_has_counter);
+
 	switch (c->processor_id & PRID_IMP_MASK) {
-	case PRID_IMP_JZRISC:
-		c->cputype = CPU_JZRISC;
+	case PRID_IMP_XBURST:
+		c->cputype = CPU_XBURST;
 		c->writecombine = _CACHE_UNCACHED_ACCELERATED;
 		__cpu_name[cpu] = "Ingenic JZRISC";
+		/*
+		 * The XBurst core by default attempts to avoid branch target
+		 * buffer lookups by detecting & special casing loops. This
+		 * feature will cause BogoMIPS and lpj calculate in error.
+		 * Set cp0 config7 bit 4 to disable this feature.
+		 */
+		set_c0_config7(MIPS_CONF7_BTB_LOOP_EN);
 		break;
 	default:
 		panic("Unknown Ingenic Processor ID!");

arch/mips/kernel/genex.S

@@ -32,9 +32,6 @@
 NESTED(except_vec3_generic, 0, sp)
 	.set	push
 	.set	noat
-#if R5432_CP0_INTERRUPT_WAR
-	mfc0	k0, CP0_INDEX
-#endif
 	mfc0	k1, CP0_CAUSE
 	andi	k1, k1, 0x7c
 #ifdef CONFIG_64BIT

arch/mips/kernel/idle.c

@@ -151,7 +151,6 @@ void __init check_wait(void)
 		cpu_wait = r39xx_wait;
 		break;
 	case CPU_R4200:
-/*	case CPU_R4300: */
 	case CPU_R4600:
 	case CPU_R4640:
 	case CPU_R4650:
@@ -173,7 +172,7 @@ void __init check_wait(void)
 	case CPU_CAVIUM_OCTEON_PLUS:
 	case CPU_CAVIUM_OCTEON2:
 	case CPU_CAVIUM_OCTEON3:
-	case CPU_JZRISC:
+	case CPU_XBURST:
 	case CPU_LOONGSON1:
 	case CPU_XLR:
 	case CPU_XLP:

arch/mips/kernel/proc.c

@@ -124,6 +124,10 @@ static int show_cpuinfo(struct seq_file *m, void *v)
 	if (cpu_has_eva)	seq_printf(m, "%s", " eva");
 	if (cpu_has_htw)	seq_printf(m, "%s", " htw");
 	if (cpu_has_xpa)	seq_printf(m, "%s", " xpa");
+	if (cpu_has_loongson_mmi)	seq_printf(m, "%s", " loongson-mmi");
+	if (cpu_has_loongson_cam)	seq_printf(m, "%s", " loongson-cam");
+	if (cpu_has_loongson_ext)	seq_printf(m, "%s", " loongson-ext");
+	if (cpu_has_loongson_ext2)	seq_printf(m, "%s", " loongson-ext2");
 	seq_printf(m, "\n");
 
 	if (cpu_has_mmips) {

arch/mips/kernel/scall32-o32.S

@@ -217,7 +217,7 @@ einval: li	v0, -ENOSYS
 #define sys_sched_getaffinity	mipsmt_sys_sched_getaffinity
 #endif /* CONFIG_MIPS_MT_FPAFF */
 
-#define __SYSCALL(nr, entry, nargs)	PTR entry
+#define __SYSCALL(nr, entry) 	PTR entry
 	.align	2
 	.type	sys_call_table, @object
 EXPORT(sys_call_table)

arch/mips/kernel/scall64-n32.S

@@ -101,7 +101,7 @@ not_n32_scall:
 
 	END(handle_sysn32)
 
-#define __SYSCALL(nr, entry, nargs) PTR entry
+#define __SYSCALL(nr, entry)	PTR entry
 	.type	sysn32_call_table, @object
 EXPORT(sysn32_call_table)
 #include <asm/syscall_table_64_n32.h>

arch/mips/kernel/scall64-n64.S

@@ -109,7 +109,7 @@ illegal_syscall:
 	j	n64_syscall_exit
 	END(handle_sys64)
 
-#define __SYSCALL(nr, entry, nargs) PTR entry
+#define __SYSCALL(nr, entry)	PTR entry
 	.align	3
 	.type	sys_call_table, @object
 EXPORT(sys_call_table)

arch/mips/kernel/scall64-o32.S

@@ -213,7 +213,7 @@ einval: li	v0, -ENOSYS
 	jr	ra
 	END(sys32_syscall)
 
-#define __SYSCALL(nr, entry, nargs) PTR entry
+#define __SYSCALL(nr, entry)	PTR entry
 	.align	3
 	.type	sys32_call_table,@object
 EXPORT(sys32_call_table)

arch/mips/kernel/syscall.c

@@ -132,6 +132,7 @@ static inline int mips_atomic_set(unsigned long addr, unsigned long new)
 		  [efault] "i" (-EFAULT)
 		: "memory");
 	} else if (cpu_has_llsc) {
+		loongson_llsc_mb();
 		__asm__ __volatile__ (
 		"	.set	push					\n"
 		"	.set	"MIPS_ISA_ARCH_LEVEL"			\n"

arch/mips/kernel/syscalls/syscalltbl.sh

@@ -13,10 +13,10 @@ emit() {
 	t_entry="$3"
 
 	while [ $t_nxt -lt $t_nr ]; do
-		printf "__SYSCALL(%s, sys_ni_syscall, )\n" "${t_nxt}"
+		printf "__SYSCALL(%s,sys_ni_syscall)\n" "${t_nxt}"
 		t_nxt=$((t_nxt+1))
 	done
-	printf "__SYSCALL(%s, %s, )\n" "${t_nxt}" "${t_entry}"
+	printf "__SYSCALL(%s,%s)\n" "${t_nxt}" "${t_entry}"
 }
 
 grep -E "^[0-9A-Fa-fXx]+[[:space:]]+${my_abis}" "$in" | sort -n | (

arch/mips/kernel/vdso.c

@@ -20,9 +20,12 @@
 #include <asm/mips-cps.h>
 #include <asm/page.h>
 #include <asm/vdso.h>
+#include <vdso/helpers.h>
+#include <vdso/vsyscall.h>
 
 /* Kernel-provided data used by the VDSO. */
-static union mips_vdso_data vdso_data __page_aligned_data;
+static union mips_vdso_data mips_vdso_data __page_aligned_data;
+struct vdso_data *vdso_data = mips_vdso_data.data;
 
 /*
  * Mapping for the VDSO data/GIC pages. The real pages are mapped manually, as
@@ -66,34 +69,6 @@ static int __init init_vdso(void)
 }
 subsys_initcall(init_vdso);
 
-void update_vsyscall(struct timekeeper *tk)
-{
-	vdso_data_write_begin(&vdso_data);
-
-	vdso_data.xtime_sec = tk->xtime_sec;
-	vdso_data.xtime_nsec = tk->tkr_mono.xtime_nsec;
-	vdso_data.wall_to_mono_sec = tk->wall_to_monotonic.tv_sec;
-	vdso_data.wall_to_mono_nsec = tk->wall_to_monotonic.tv_nsec;
-	vdso_data.cs_shift = tk->tkr_mono.shift;
-
-	vdso_data.clock_mode = tk->tkr_mono.clock->archdata.vdso_clock_mode;
-	if (vdso_data.clock_mode != VDSO_CLOCK_NONE) {
-		vdso_data.cs_mult = tk->tkr_mono.mult;
-		vdso_data.cs_cycle_last = tk->tkr_mono.cycle_last;
-		vdso_data.cs_mask = tk->tkr_mono.mask;
-	}
-
-	vdso_data_write_end(&vdso_data);
-}
-
-void update_vsyscall_tz(void)
-{
-	if (vdso_data.clock_mode != VDSO_CLOCK_NONE) {
-		vdso_data.tz_minuteswest = sys_tz.tz_minuteswest;
-		vdso_data.tz_dsttime = sys_tz.tz_dsttime;
-	}
-}
-
 static unsigned long vdso_base(void)
 {
 	unsigned long base;
@@ -163,7 +138,7 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp)
 	 */
 	if (cpu_has_dc_aliases) {
 		base = __ALIGN_MASK(base, shm_align_mask);
-		base += ((unsigned long)&vdso_data - gic_size) & shm_align_mask;
+		base += ((unsigned long)vdso_data - gic_size) & shm_align_mask;
 	}
 
 	data_addr = base + gic_size;
@@ -189,7 +164,7 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp)
 
 	/* Map data page. */
 	ret = remap_pfn_range(vma, data_addr,
-			      virt_to_phys(&vdso_data) >> PAGE_SHIFT,
+			      virt_to_phys(vdso_data) >> PAGE_SHIFT,
 			      PAGE_SIZE, PAGE_READONLY);
 	if (ret)
 		goto out;

arch/mips/lantiq/xway/sysctrl.c

@@ -468,14 +468,14 @@ void __init ltq_soc_init(void)
 		clkdev_add_pmu("1f203018.usb2-phy", "phy", 1, 2, PMU_ANALOG_USB0_P);
 		clkdev_add_pmu("1f203034.usb2-phy", "phy", 1, 2, PMU_ANALOG_USB1_P);
 		/* rc 0 */
-		clkdev_add_pmu("1d900000.pcie", "phy", 1, 2, PMU_ANALOG_PCIE0_P);
+		clkdev_add_pmu("1f106800.phy", "phy", 1, 2, PMU_ANALOG_PCIE0_P);
 		clkdev_add_pmu("1d900000.pcie", "msi", 1, 1, PMU1_PCIE_MSI);
-		clkdev_add_pmu("1d900000.pcie", "pdi", 1, 1, PMU1_PCIE_PDI);
+		clkdev_add_pmu("1f106800.phy", "pdi", 1, 1, PMU1_PCIE_PDI);
 		clkdev_add_pmu("1d900000.pcie", "ctl", 1, 1, PMU1_PCIE_CTL);
 		/* rc 1 */
-		clkdev_add_pmu("19000000.pcie", "phy", 1, 2, PMU_ANALOG_PCIE1_P);
+		clkdev_add_pmu("1f700400.phy", "phy", 1, 2, PMU_ANALOG_PCIE1_P);
 		clkdev_add_pmu("19000000.pcie", "msi", 1, 1, PMU1_PCIE1_MSI);
-		clkdev_add_pmu("19000000.pcie", "pdi", 1, 1, PMU1_PCIE1_PDI);
+		clkdev_add_pmu("1f700400.phy", "pdi", 1, 1, PMU1_PCIE1_PDI);
 		clkdev_add_pmu("19000000.pcie", "ctl", 1, 1, PMU1_PCIE1_CTL);
 	}
 
@@ -499,9 +499,9 @@ void __init ltq_soc_init(void)
 		clkdev_add_pmu("1e101000.usb", "otg", 1, 0, PMU_USB0);
 		clkdev_add_pmu("1e106000.usb", "otg", 1, 0, PMU_USB1);
 		/* rc 2 */
-		clkdev_add_pmu("1a800000.pcie", "phy", 1, 2, PMU_ANALOG_PCIE2_P);
+		clkdev_add_pmu("1f106a00.pcie", "phy", 1, 2, PMU_ANALOG_PCIE2_P);
 		clkdev_add_pmu("1a800000.pcie", "msi", 1, 1, PMU1_PCIE2_MSI);
-		clkdev_add_pmu("1a800000.pcie", "pdi", 1, 1, PMU1_PCIE2_PDI);
+		clkdev_add_pmu("1f106a00.pcie", "pdi", 1, 1, PMU1_PCIE2_PDI);
 		clkdev_add_pmu("1a800000.pcie", "ctl", 1, 1, PMU1_PCIE2_CTL);
 		clkdev_add_pmu("1e10b308.eth", NULL, 0, 0, PMU_SWITCH | PMU_PPE_DP);
 		clkdev_add_pmu("1da00000.usif", "NULL", 1, 0, PMU_USIF);
@@ -526,10 +526,10 @@ void __init ltq_soc_init(void)
 		clkdev_add_pmu("1e101000.usb", "otg", 1, 0, PMU_USB0 | PMU_AHBM);
 		clkdev_add_pmu("1f203034.usb2-phy", "phy", 1, 0, PMU_USB1_P);
 		clkdev_add_pmu("1e106000.usb", "otg", 1, 0, PMU_USB1 | PMU_AHBM);
-		clkdev_add_pmu("1d900000.pcie", "phy", 1, 1, PMU1_PCIE_PHY);
+		clkdev_add_pmu("1f106800.phy", "phy", 1, 1, PMU1_PCIE_PHY);
 		clkdev_add_pmu("1d900000.pcie", "bus", 1, 0, PMU_PCIE_CLK);
 		clkdev_add_pmu("1d900000.pcie", "msi", 1, 1, PMU1_PCIE_MSI);
-		clkdev_add_pmu("1d900000.pcie", "pdi", 1, 1, PMU1_PCIE_PDI);
+		clkdev_add_pmu("1f106800.phy", "pdi", 1, 1, PMU1_PCIE_PDI);
 		clkdev_add_pmu("1d900000.pcie", "ctl", 1, 1, PMU1_PCIE_CTL);
 		clkdev_add_pmu(NULL, "ahb", 1, 0, PMU_AHBM | PMU_AHBS);
 

arch/mips/mm/Makefile

@@ -28,11 +28,11 @@ obj-$(CONFIG_HIGHMEM)		+= highmem.o
 obj-$(CONFIG_HUGETLB_PAGE)	+= hugetlbpage.o
 obj-$(CONFIG_DMA_NONCOHERENT)	+= dma-noncoherent.o
 
+obj-$(CONFIG_CPU_R3K_TLB)	+= tlb-r3k.o
 obj-$(CONFIG_CPU_R4K_CACHE_TLB) += c-r4k.o cex-gen.o tlb-r4k.o
-obj-$(CONFIG_CPU_R3000)		+= c-r3k.o tlb-r3k.o
-obj-$(CONFIG_CPU_R8000)		+= c-r4k.o cex-gen.o tlb-r8k.o
+obj-$(CONFIG_CPU_R3000)		+= c-r3k.o
 obj-$(CONFIG_CPU_SB1)		+= c-r4k.o cerr-sb1.o cex-sb1.o tlb-r4k.o
-obj-$(CONFIG_CPU_TX39XX)	+= c-tx39.o tlb-r3k.o
+obj-$(CONFIG_CPU_TX39XX)	+= c-tx39.o
 obj-$(CONFIG_CPU_CAVIUM_OCTEON) += c-octeon.o cex-oct.o tlb-r4k.o
 
 obj-$(CONFIG_IP22_CPU_SCACHE)	+= sc-ip22.o

arch/mips/mm/c-r4k.c

@@ -1098,7 +1098,6 @@ static void probe_pcache(void)
 		c->options |= MIPS_CPU_CACHE_CDEX_P;
 		break;
 
-	case CPU_R5432:
 	case CPU_R5500:
 		icache_size = 1 << (12 + ((config & CONF_IC) >> 9));
 		c->icache.linesz = 16 << ((config & CONF_IB) >> 5);
@@ -1134,7 +1133,6 @@ static void probe_pcache(void)
 	case CPU_R4400PC:
 	case CPU_R4400SC:
 	case CPU_R4400MC:
-	case CPU_R4300:
 		icache_size = 1 << (12 + ((config & CONF_IC) >> 9));
 		c->icache.linesz = 16 << ((config & CONF_IB) >> 5);
 		c->icache.ways = 1;

arch/mips/mm/pgtable-32.c

@@ -12,6 +12,7 @@
 #include <asm/fixmap.h>
 #include <asm/pgtable.h>
 #include <asm/pgalloc.h>
+#include <asm/tlbflush.h>
 
 void pgd_init(unsigned long page)
 {
@@ -30,6 +31,25 @@ void pgd_init(unsigned long page)
 	}
 }
 
+#if defined(CONFIG_TRANSPARENT_HUGEPAGE)
+pmd_t mk_pmd(struct page *page, pgprot_t prot)
+{
+	pmd_t pmd;
+
+	pmd_val(pmd) = (page_to_pfn(page) << _PFN_SHIFT) | pgprot_val(prot);
+
+	return pmd;
+}
+
+
+void set_pmd_at(struct mm_struct *mm, unsigned long addr,
+		pmd_t *pmdp, pmd_t pmd)
+{
+	*pmdp = pmd;
+	flush_tlb_all();
+}
+#endif /* defined(CONFIG_TRANSPARENT_HUGEPAGE) */
+
 void __init pagetable_init(void)
 {
 	unsigned long vaddr;

arch/mips/mm/sc-mips.c

@@ -221,13 +221,26 @@ static inline int __init mips_sc_probe(void)
 	else
 		return 0;
 
+	if (current_cpu_type() == CPU_XBURST) {
+		switch (mips_machtype) {
 		/*
-	 * According to config2 it would be 5-ways, but that is contradicted
-	 * by all documentation.
+		 * According to config2 it would be 5-ways, but that is
+		 * contradicted by all documentation.
 		 */
-	if (current_cpu_type() == CPU_JZRISC &&
-				mips_machtype == MACH_INGENIC_JZ4770)
+		case MACH_INGENIC_JZ4770:
 			c->scache.ways = 4;
+			break;
+
+		/*
+		 * According to config2 it would be 5-ways and 512-sets,
+		 * but that is contradicted by all documentation.
+		 */
+		case MACH_INGENIC_X1000:
+			c->scache.sets = 256;
+			c->scache.ways = 4;
+			break;
+		}
+	}
 
 	c->scache.waysize = c->scache.sets * c->scache.linesz;
 	c->scache.waybit = __ffs(c->scache.waysize);