Merge tag 'mips_6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux

Pull MIPS updates from Thomas Bogendoerfer:

 - add support for Realtek RTL9302C

 - add support for Mobileye EyeQ6H

 - add support for Mobileye EyeQ OLB system controller

 - improve r4k clocksource

 - add mode for emulating ieee754 NAN2008

 - rework for BMIPS CBR address handling

 - fixes for Loongson 2K1000

 - defconfig updates

 - cleanups and fixes

* tag 'mips_6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux: (58 commits)
  MIPS: config: Add ip30_defconfig
  MIPS: config: lemote2f: Regenerate defconfig
  MIPS: config: generic: Add board-litex
  MIPS: config: Enable MSA and virtualization for MIPS64R6
  MIPS: Fix fallback march for SB1
  mips: dts: realtek: Add RTL9302C board
  mips: generic: add fdt fixup for Realtek reference board
  mips: select REALTEK_OTTO_TIMER for Realtek platforms
  dt-bindings: interrupt-controller: realtek,rtl-intc: Add rtl9300-intc
  dt-bindings: mips: realtek: Add rtl930x-soc compatible
  dt-bindings: vendor-prefixes: Add Cameo Communications
  mips: dts: realtek: add device_type property to cpu node
  mips: dts: realtek: use "serial" instead of "uart" in node name
  MIPS: Implement ieee754 NAN2008 emulation mode
  MIPS: lantiq: improve USB initialization
  MIPS: GIC: Generate redirect block accessors
  MIPS: CPS: Add a couple of multi-cluster utility functions
  MIPS: Octeron: remove source file executable bit
  MAINTAINERS: Mobileye: add OLB drivers and dt-bindings
  MIPS: mobileye: eyeq5: add OLB system-controller node
  ...

Documentation/admin-guide/kernel-parameters.txt

@@ -2003,7 +2003,7 @@
 			for the device. By default it is set to false (0).
 
 	ieee754=	[MIPS] Select IEEE Std 754 conformance mode
-			Format: { strict | legacy | 2008 | relaxed }
+			Format: { strict | legacy | 2008 | relaxed | emulated }
 			Default: strict
 
 			Choose which programs will be accepted for execution
@@ -2023,6 +2023,8 @@
 				by the FPU
 			relaxed	accept any binaries regardless of whether
 				supported by the FPU
+			emulated accept any binaries but enable FPU emulator
+				if binary mode is unsupported by the FPU.
 
 			The FPU emulator is always able to support both NaN
 			encodings, so if no FPU hardware is present or it has

Documentation/devicetree/bindings/interrupt-controller/realtek,rtl-intc.yaml

@@ -25,6 +25,7 @@ properties:
       - items:
           - enum:
               - realtek,rtl8380-intc
+              - realtek,rtl9300-intc
           - const: realtek,rtl-intc
       - const: realtek,rtl-intc
         deprecated: true
@@ -35,7 +36,10 @@ properties:
     const: 1
 
   reg:
-    maxItems: 1
+    minItems: 1
+    items:
+      - description: vpe0 registers
+      - description: vpe1 registers
 
   interrupts:
     minItems: 1
@@ -71,6 +75,20 @@ allOf:
     else:
       required:
         - interrupts
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: realtek,rtl9300-intc
+    then:
+      properties:
+        reg:
+          minItems: 2
+          maxItems: 2
+    else:
+      properties:
+        reg:
+          maxItems: 1
 
 additionalProperties: false
 

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

@@ -55,6 +55,16 @@ properties:
          under the "cpus" node.
         $ref: /schemas/types.yaml#/definitions/uint32
 
+      brcm,bmips-cbr-reg:
+        description: Reference address of the CBR.
+          Some SoC suffer from a BUG where CBR(Core Base Register)
+          address might be badly or never initialized by the Bootloader
+          or reading it from co-processor registers, if the system boots
+          from secondary CPU, results in invalid address.
+          The CBR address is always the same on the SoC hence it
+          can be provided in DT to handle these broken case.
+        $ref: /schemas/types.yaml#/definitions/uint32
+
     patternProperties:
       "^cpu@[0-9]$":
         type: object
@@ -64,6 +74,20 @@ properties:
     required:
       - mips-hpt-frequency
 
+if:
+  properties:
+    compatible:
+      contains:
+        enum:
+          - brcm,bcm6358
+          - brcm,bcm6368
+
+then:
+  properties:
+    cpus:
+      required:
+        - brcm,bmips-cbr-reg
+
 additionalProperties: true
 
 examples:

Documentation/devicetree/bindings/mips/mobileye.yaml

@@ -26,6 +26,11 @@ properties:
           - enum:
               - mobileye,eyeq5-epm5
           - const: mobileye,eyeq5
+      - description: Boards with Mobileye EyeQ6H SoC
+        items:
+          - enum:
+              - mobileye,eyeq6h-epm6
+          - const: mobileye,eyeq6h
 
 additionalProperties: true
 

Documentation/devicetree/bindings/mips/realtek-rtl.yaml

@@ -20,5 +20,9 @@ properties:
           - enum:
               - cisco,sg220-26
           - const: realtek,rtl8382-soc
+      - items:
+          - enum:
+              - cameo,rtl9302c-2x-rtl8224-2xge
+          - const: realtek,rtl9302-soc
 
 additionalProperties: true

Documentation/devicetree/bindings/soc/mobileye/mobileye,eyeq5-olb.yaml

+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/soc/mobileye/mobileye,eyeq5-olb.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Mobileye EyeQ SoC system controller
+
+maintainers:
+  - Grégory Clement <gregory.clement@bootlin.com>
+  - Théo Lebrun <theo.lebrun@bootlin.com>
+  - Vladimir Kondratiev <vladimir.kondratiev@mobileye.com>
+
+description:
+  OLB ("Other Logic Block") is a hardware block grouping smaller blocks. Clocks,
+  resets, pinctrl are being handled from here. EyeQ5 and EyeQ6L host a single
+  instance. EyeQ6H hosts seven instances.
+
+properties:
+  compatible:
+    items:
+      - enum:
+          - mobileye,eyeq5-olb
+          - mobileye,eyeq6l-olb
+          - mobileye,eyeq6h-acc-olb
+          - mobileye,eyeq6h-central-olb
+          - mobileye,eyeq6h-east-olb
+          - mobileye,eyeq6h-west-olb
+          - mobileye,eyeq6h-south-olb
+          - mobileye,eyeq6h-ddr0-olb
+          - mobileye,eyeq6h-ddr1-olb
+      - const: syscon
+
+  reg:
+    maxItems: 1
+
+  '#reset-cells':
+    description:
+      First cell is domain and optional if compatible has a single reset domain.
+      Second cell is reset index inside that domain.
+    enum: [ 1, 2 ]
+
+  '#clock-cells':
+    description:
+      Cell is clock index. Optional if compatible has a single clock.
+    enum: [ 0, 1 ]
+
+  clocks:
+    maxItems: 1
+    description:
+      Input parent clock to all PLLs. Expected to be the main crystal.
+
+  clock-names:
+    const: ref
+
+patternProperties:
+  '-pins?$':
+    type: object
+    description: Pin muxing configuration.
+    $ref: /schemas/pinctrl/pinmux-node.yaml#
+    additionalProperties: false
+    properties:
+      pins: true
+      function:
+        enum: [gpio,
+               # Bank A
+               timer0, timer1, timer2, timer5, uart0, uart1, can0, can1, spi0,
+               spi1, refclk0,
+               # Bank B
+               timer3, timer4, timer6, uart2, can2, spi2, spi3, mclk0]
+      bias-disable: true
+      bias-pull-down: true
+      bias-pull-up: true
+      drive-strength: true
+    required:
+      - pins
+      - function
+    allOf:
+      - if:
+          properties:
+            function:
+              const: gpio
+        then:
+          properties:
+            pins:
+              items: # PA0 - PA28, PB0 - PB22
+                pattern: '^(P(A|B)1?[0-9]|PA2[0-8]|PB2[0-2])$'
+      - if:
+          properties:
+            function:
+              const: timer0
+        then:
+          properties:
+            pins:
+              items:
+                enum: [PA0, PA1]
+      - if:
+          properties:
+            function:
+              const: timer1
+        then:
+          properties:
+            pins:
+              items:
+                enum: [PA2, PA3]
+      - if:
+          properties:
+            function:
+              const: timer2
+        then:
+          properties:
+            pins:
+              items:
+                enum: [PA4, PA5]
+      - if:
+          properties:
+            function:
+              const: timer5
+        then:
+          properties:
+            pins:
+              items:
+                enum: [PA6, PA7, PA8, PA9]
+      - if:
+          properties:
+            function:
+              const: uart0
+        then:
+          properties:
+            pins:
+              items:
+                enum: [PA10, PA11]
+      - if:
+          properties:
+            function:
+              const: uart1
+        then:
+          properties:
+            pins:
+              items:
+                enum: [PA12, PA13]
+      - if:
+          properties:
+            function:
+              const: can0
+        then:
+          properties:
+            pins:
+              items:
+                enum: [PA14, PA15]
+      - if:
+          properties:
+            function:
+              const: can1
+        then:
+          properties:
+            pins:
+              items:
+                enum: [PA16, PA17]
+      - if:
+          properties:
+            function:
+              const: spi0
+        then:
+          properties:
+            pins:
+              items:
+                enum: [PA18, PA19, PA20, PA21, PA22]
+      - if:
+          properties:
+            function:
+              const: spi1
+        then:
+          properties:
+            pins:
+              items:
+                enum: [PA23, PA24, PA25, PA26, PA27]
+      - if:
+          properties:
+            function:
+              const: refclk0
+        then:
+          properties:
+            pins:
+              items:
+                enum: [PA28]
+      - if:
+          properties:
+            function:
+              const: timer3
+        then:
+          properties:
+            pins:
+              items:
+                enum: [PB0, PB1]
+      - if:
+          properties:
+            function:
+              const: timer4
+        then:
+          properties:
+            pins:
+              items:
+                enum: [PB2, PB3]
+      - if:
+          properties:
+            function:
+              const: timer6
+        then:
+          properties:
+            pins:
+              items:
+                enum: [PB4, PB5, PB6, PB7]
+      - if:
+          properties:
+            function:
+              const: uart2
+        then:
+          properties:
+            pins:
+              items:
+                enum: [PB8, PB9]
+      - if:
+          properties:
+            function:
+              const: can2
+        then:
+          properties:
+            pins:
+              items:
+                enum: [PB10, PB11]
+      - if:
+          properties:
+            function:
+              const: spi2
+        then:
+          properties:
+            pins:
+              items:
+                enum: [PB12, PB13, PB14, PB15, PB16]
+      - if:
+          properties:
+            function:
+              const: spi3
+        then:
+          properties:
+            pins:
+              items:
+                enum: [PB17, PB18, PB19, PB20, PB21]
+      - if:
+          properties:
+            function:
+              const: mclk0
+        then:
+          properties:
+            pins:
+              items:
+                enum: [PB22]
+
+required:
+  - compatible
+  - reg
+  - '#clock-cells'
+  - clocks
+  - clock-names
+
+additionalProperties: false
+
+allOf:
+    # Compatibles exposing a single reset domain.
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - mobileye,eyeq6h-acc-olb
+              - mobileye,eyeq6h-east-olb
+              - mobileye,eyeq6h-west-olb
+    then:
+      properties:
+        '#reset-cells':
+          const: 1
+      required:
+        - '#reset-cells'
+
+    # Compatibles exposing two reset domains.
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - mobileye,eyeq5-olb
+              - mobileye,eyeq6l-olb
+    then:
+      properties:
+        '#reset-cells':
+          const: 2
+      required:
+        - '#reset-cells'
+
+    # Compatibles not exposing resets.
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - mobileye,eyeq6h-central-olb
+              - mobileye,eyeq6h-south-olb
+              - mobileye,eyeq6h-ddr0-olb
+              - mobileye,eyeq6h-ddr1-olb
+    then:
+      properties:
+        '#reset-cells': false
+
+    # Compatibles exposing a single clock.
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - mobileye,eyeq6h-central-olb
+              - mobileye,eyeq6h-east-olb
+              - mobileye,eyeq6h-west-olb
+              - mobileye,eyeq6h-ddr0-olb
+              - mobileye,eyeq6h-ddr1-olb
+    then:
+      properties:
+        '#clock-cells':
+          const: 0
+    else:
+      properties:
+        '#clock-cells':
+          const: 1
+
+    # Only EyeQ5 has pinctrl in OLB.
+  - if:
+      not:
+        properties:
+          compatible:
+            contains:
+              const: mobileye,eyeq5-olb
+    then:
+      patternProperties:
+        '-pins?$': false
+
+examples:
+  - |
+    soc {
+      #address-cells = <2>;
+      #size-cells = <2>;
+
+      system-controller@e00000 {
+        compatible = "mobileye,eyeq5-olb", "syscon";
+        reg = <0 0xe00000 0x0 0x400>;
+        #reset-cells = <2>;
+        #clock-cells = <1>;
+        clocks = <&xtal>;
+        clock-names = "ref";
+      };
+    };
+  - |
+    soc {
+      #address-cells = <2>;
+      #size-cells = <2>;
+
+      system-controller@d2003000 {
+        compatible = "mobileye,eyeq6h-acc-olb", "syscon";
+        reg = <0x0 0xd2003000 0x0 0x1000>;
+        #reset-cells = <1>;
+        #clock-cells = <1>;
+        clocks = <&xtal>;
+        clock-names = "ref";
+      };
+    };

Documentation/devicetree/bindings/vendor-prefixes.yaml

@@ -246,6 +246,8 @@ patternProperties:
     description: CALAO Systems SAS
   "^calxeda,.*":
     description: Calxeda
+  "^cameo,.*":
+    description: Cameo Communications, Inc
   "^canaan,.*":
     description: Canaan, Inc.
   "^caninos,.*":

MAINTAINERS

@@ -15406,9 +15406,14 @@ M:	Théo Lebrun <theo.lebrun@bootlin.com>
 L:	linux-mips@vger.kernel.org
 S:	Maintained
 F:	Documentation/devicetree/bindings/mips/mobileye.yaml
+F:	Documentation/devicetree/bindings/soc/mobileye/
 F:	arch/mips/boot/dts/mobileye/
 F:	arch/mips/configs/eyeq5_defconfig
 F:	arch/mips/mobileye/board-epm5.its.S
+F:	drivers/clk/clk-eyeq.c
+F:	drivers/pinctrl/pinctrl-eyeq5.c
+F:	drivers/reset/reset-eyeq.c
+F:	include/dt-bindings/clock/mobileye,eyeq5-clk.h
 
 MODULE SUPPORT
 M:	Luis Chamberlain <mcgrof@kernel.org>

arch/mips/Kbuild.platforms

@@ -8,6 +8,7 @@ platform-$(CONFIG_BCM47XX)		+= bcm47xx/
 platform-$(CONFIG_BCM63XX)		+= bcm63xx/
 platform-$(CONFIG_BMIPS_GENERIC)	+= bmips/
 platform-$(CONFIG_CAVIUM_OCTEON_SOC)	+= cavium-octeon/
+platform-$(CONFIG_EYEQ)			+= mobileye/
 platform-$(CONFIG_MIPS_COBALT)		+= cobalt/
 platform-$(CONFIG_MACH_DECSTATION)	+= dec/
 platform-$(CONFIG_MIPS_GENERIC)		+= generic/
@@ -17,7 +18,6 @@ platform-$(CONFIG_MACH_LOONGSON2EF)	+= loongson2ef/
 platform-$(CONFIG_MACH_LOONGSON32)	+= loongson32/
 platform-$(CONFIG_MACH_LOONGSON64)	+= loongson64/
 platform-$(CONFIG_MIPS_MALTA)		+= mti-malta/
-platform-$(CONFIG_MACH_EYEQ5)		+= mobileye/
 platform-$(CONFIG_MACH_NINTENDO64)	+= n64/
 platform-$(CONFIG_PIC32MZDA)		+= pic32/
 platform-$(CONFIG_RALINK)		+= ralink/

arch/mips/Kconfig

@@ -30,7 +30,7 @@ config MIPS
 	select BUILDTIME_TABLE_SORT
 	select CLONE_BACKWARDS
 	select CPU_NO_EFFICIENT_FFS if (TARGET_ISA_REV < 1)
-	select CPU_PM if CPU_IDLE
+	select CPU_PM if CPU_IDLE || SUSPEND
 	select GENERIC_ATOMIC64 if !64BIT
 	select GENERIC_CMOS_UPDATE
 	select GENERIC_CPU_AUTOPROBE
@@ -575,8 +575,8 @@ config MACH_PIC32
 	  Microchip PIC32 is a family of general-purpose 32 bit MIPS core
 	  microcontrollers.
 
-config MACH_EYEQ5
-	bool "Mobileye EyeQ5 SoC"
+config EYEQ
+	bool "Mobileye EyeQ SoC"
 	select MACH_GENERIC_CORE
 	select ARM_AMBA
 	select PHYSICAL_START_BOOL
@@ -615,7 +615,7 @@ config MACH_EYEQ5
 	select USB_UHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
 	select USE_OF
 	help
-	  Select this to build a kernel supporting EyeQ5 SoC from Mobileye.
+	  Select this to build a kernel supporting EyeQ SoC from Mobileye.
 
 	bool
 
@@ -667,6 +667,7 @@ config MACH_REALTEK_RTL
 	select BOOT_RAW
 	select PINCTRL
 	select USE_OF
+	select REALTEK_OTTO_TIMER
 
 config SGI_IP22
 	bool "SGI IP22 (Indy/Indigo2)"
@@ -1021,6 +1022,7 @@ source "arch/mips/generic/Kconfig"
 source "arch/mips/ingenic/Kconfig"
 source "arch/mips/jazz/Kconfig"
 source "arch/mips/lantiq/Kconfig"
+source "arch/mips/mobileye/Kconfig"
 source "arch/mips/pic32/Kconfig"
 source "arch/mips/ralink/Kconfig"
 source "arch/mips/sgi-ip27/Kconfig"
@@ -1083,6 +1085,7 @@ config CSRC_IOASIC
 
 config CSRC_R4K
 	select CLOCKSOURCE_WATCHDOG if CPU_FREQ
+	select HAVE_UNSTABLE_SCHED_CLOCK if SMP && 64BIT
 	bool
 
 config CSRC_SB1250

arch/mips/Makefile

@@ -170,7 +170,7 @@ cflags-$(CONFIG_CPU_NEVADA)	+= $(call cc-option,-march=rm5200,-march=mips4) \
 			-Wa,--trap
 cflags-$(CONFIG_CPU_RM7000)	+= $(call cc-option,-march=rm7000,-march=mips4) \
 			-Wa,--trap
-cflags-$(CONFIG_CPU_SB1)	+= $(call cc-option,-march=sb1,-march=mips64r1) \
+cflags-$(CONFIG_CPU_SB1)	+= $(call cc-option,-march=sb1,-march=mips64) \
 			-Wa,--trap
 cflags-$(CONFIG_CPU_SB1)	+= $(call cc-option,-mno-mdmx)
 cflags-$(CONFIG_CPU_SB1)	+= $(call cc-option,-mno-mips3d)

arch/mips/alchemy/common/platform.c

@@ -409,8 +409,8 @@ static void __init alchemy_setup_macs(int ctype)
 	if (alchemy_get_macs(ctype) < 1)
 		return;
 
-	macres = kmemdup(au1xxx_eth0_resources[ctype],
-			 sizeof(struct resource) * MAC_RES_COUNT, GFP_KERNEL);
+	macres = kmemdup_array(au1xxx_eth0_resources[ctype], MAC_RES_COUNT,
+			       sizeof(*macres), GFP_KERNEL);
 	if (!macres) {
 		printk(KERN_INFO "Alchemy: no memory for MAC0 resources\n");
 		return;
@@ -430,8 +430,8 @@ static void __init alchemy_setup_macs(int ctype)
 	if (alchemy_get_macs(ctype) < 2)
 		return;
 
-	macres = kmemdup(au1xxx_eth1_resources[ctype],
-			 sizeof(struct resource) * MAC_RES_COUNT, GFP_KERNEL);
+	macres = kmemdup_array(au1xxx_eth1_resources[ctype], MAC_RES_COUNT,
+			       sizeof(*macres), GFP_KERNEL);
 	if (!macres) {
 		printk(KERN_INFO "Alchemy: no memory for MAC1 resources\n");
 		return;

arch/mips/alchemy/devboards/db1000.c

@@ -10,15 +10,16 @@
 #include <linux/dma-mapping.h>
 #include <linux/gpio.h>
 #include <linux/gpio/machine.h>
+#include <linux/gpio/property.h>
 #include <linux/init.h>
 #include <linux/interrupt.h>
 #include <linux/leds.h>
 #include <linux/mmc/host.h>
 #include <linux/platform_device.h>
+#include <linux/property.h>
 #include <linux/pm.h>
 #include <linux/spi/spi.h>
 #include <linux/spi/spi_gpio.h>
-#include <linux/spi/ads7846.h>
 #include <asm/mach-au1x00/au1000.h>
 #include <asm/mach-au1x00/gpio-au1000.h>
 #include <asm/mach-au1x00/au1000_dma.h>
@@ -374,22 +375,20 @@ static struct platform_device db1100_mmc1_dev = {
 
 /******************************************************************************/
 
-static struct ads7846_platform_data db1100_touch_pd = {
-	.model		= 7846,
-	.vref_mv	= 3300,
+static const struct software_node db1100_alchemy2_gpiochip = {
+	.name	= "alchemy-gpio2",
 };
 
-static struct spi_gpio_platform_data db1100_spictl_pd = {
-	.num_chipselect = 1,
+static const struct property_entry db1100_ads7846_properties[] = {
+	PROPERTY_ENTRY_U16("ti,vref_min", 3300),
+	PROPERTY_ENTRY_GPIO("pendown-gpios",
+			    &db1100_alchemy2_gpiochip, 21, GPIO_ACTIVE_LOW),
+	{ }
 };
 
-static struct gpiod_lookup_table db1100_touch_gpio_table = {
-	.dev_id = "spi0.0",
-	.table = {
-		GPIO_LOOKUP("alchemy-gpio2", 21,
-			    "pendown", GPIO_ACTIVE_LOW),
-		{ }
-	},
+static const struct software_node db1100_ads7846_swnode = {
+	.name		= "ads7846",
+	.properties	= db1100_ads7846_properties,
 };
 
 static struct spi_board_info db1100_spi_info[] __initdata = {
@@ -400,37 +399,37 @@ static struct spi_board_info db1100_spi_info[] __initdata = {
 		.chip_select	 = 0,
 		.mode		 = 0,
 		.irq		 = AU1100_GPIO21_INT,
-		.platform_data	 = &db1100_touch_pd,
+		.swnode		 = &db1100_ads7846_swnode,
 	},
 };
 
-static struct platform_device db1100_spi_dev = {
-	.name		= "spi_gpio",
-	.id		= 0,
-	.dev		= {
-		.platform_data	= &db1100_spictl_pd,
-		.dma_mask		= &au1xxx_all_dmamask,
-		.coherent_dma_mask	= DMA_BIT_MASK(32),
-	},
+static const struct spi_gpio_platform_data db1100_spictl_pd __initconst = {
+	.num_chipselect = 1,
 };
 
 /*
  * Alchemy GPIO 2 has its base at 200 so the GPIO lines
  * 207 thru 210 are GPIOs at offset 7 thru 10 at this chip.
  */
-static struct gpiod_lookup_table db1100_spi_gpiod_table = {
-	.dev_id         = "spi_gpio",
-	.table          = {
-		GPIO_LOOKUP("alchemy-gpio2", 9,
-			    "sck", GPIO_ACTIVE_HIGH),
-		GPIO_LOOKUP("alchemy-gpio2", 8,
-			    "mosi", GPIO_ACTIVE_HIGH),
-		GPIO_LOOKUP("alchemy-gpio2", 7,
-			    "miso", GPIO_ACTIVE_HIGH),
-		GPIO_LOOKUP("alchemy-gpio2", 10,
-			    "cs", GPIO_ACTIVE_HIGH),
-		{ },
-	},
+static const struct property_entry db1100_spi_dev_properties[] __initconst = {
+	PROPERTY_ENTRY_GPIO("miso-gpios",
+			    &db1100_alchemy2_gpiochip, 7, GPIO_ACTIVE_HIGH),
+	PROPERTY_ENTRY_GPIO("mosi-gpios",
+			    &db1100_alchemy2_gpiochip, 8, GPIO_ACTIVE_HIGH),
+	PROPERTY_ENTRY_GPIO("sck-gpios",
+			    &db1100_alchemy2_gpiochip, 9, GPIO_ACTIVE_HIGH),
+	PROPERTY_ENTRY_GPIO("cs-gpios",
+			    &db1100_alchemy2_gpiochip, 10, GPIO_ACTIVE_HIGH),
+	{ }
+};
+
+static const struct platform_device_info db1100_spi_dev_info __initconst = {
+	.name		= "spi_gpio",
+	.id		= 0,
+	.data		= &db1100_spictl_pd,
+	.size_data	= sizeof(db1100_spictl_pd),
+        .dma_mask	= DMA_BIT_MASK(32),
+	.properties	= db1100_spi_dev_properties,
 };
 
 static struct platform_device *db1x00_devs[] = {
@@ -452,8 +451,10 @@ int __init db1000_dev_setup(void)
 {
 	int board = BCSR_WHOAMI_BOARD(bcsr_read(BCSR_WHOAMI));
 	int c0, c1, d0, d1, s0, s1, flashsize = 32,  twosocks = 1;
+	int err;
 	unsigned long pfc;
 	struct clk *c, *p;
+	struct platform_device *spi_dev;
 
 	if (board == BCSR_WHOAMI_DB1500) {
 		c0 = AU1500_GPIO2_INT;
@@ -480,7 +481,7 @@ int __init db1000_dev_setup(void)
 		pfc |= (1 << 0);	/* SSI0 pins as GPIOs */
 		alchemy_wrsys(pfc, AU1000_SYS_PINFUNC);
 
-		gpiod_add_lookup_table(&db1100_touch_gpio_table);
+		software_node_register(&db1100_alchemy2_gpiochip);
 		spi_register_board_info(db1100_spi_info,
 					ARRAY_SIZE(db1100_spi_info));
 
@@ -497,8 +498,11 @@ int __init db1000_dev_setup(void)
 			clk_put(p);
 
 		platform_add_devices(db1100_devs, ARRAY_SIZE(db1100_devs));
-		gpiod_add_lookup_table(&db1100_spi_gpiod_table);
-		platform_device_register(&db1100_spi_dev);
+
+		spi_dev = platform_device_register_full(&db1100_spi_dev_info);
+		err = PTR_ERR_OR_ZERO(spi_dev);
+		if (err)
+			pr_err("failed to register SPI controller: %d\n", err);
 	} else if (board == BCSR_WHOAMI_DB1000) {
 		c0 = AU1000_GPIO2_INT;
 		c1 = AU1000_GPIO5_INT;

arch/mips/bcm47xx/prom.c

@@ -32,6 +32,7 @@
 #include <linux/ssb/ssb_driver_chipcommon.h>
 #include <linux/ssb/ssb_regs.h>
 #include <linux/smp.h>
+#include <asm/bmips.h>
 #include <asm/bootinfo.h>
 #include <bcm47xx.h>
 #include <bcm47xx_board.h>
@@ -110,6 +111,8 @@ static __init void prom_init_mem(void)
 
 void __init prom_init(void)
 {
+	/* Cache CBR addr before CPU/DMA setup */
+	bmips_cbr_addr = BMIPS_GET_CBR();
 	prom_init_mem();
 	setup_8250_early_printk_port(CKSEG1ADDR(BCM47XX_SERIAL_ADDR), 0, 0);
 }

arch/mips/bcm47xx/setup.c

@@ -37,6 +37,7 @@
 #include <linux/ssb/ssb.h>
 #include <linux/ssb/ssb_embedded.h>
 #include <linux/bcma/bcma_soc.h>
+#include <asm/bmips.h>
 #include <asm/bootinfo.h>
 #include <asm/idle.h>
 #include <asm/prom.h>
@@ -45,6 +46,13 @@
 #include <bcm47xx.h>
 #include <bcm47xx_board.h>
 
+/*
+ * CBR addr doesn't change and we can cache it.
+ * For broken SoC/Bootloader CBR addr might also be provided via DT
+ * with "brcm,bmips-cbr-reg" in the "cpus" node.
+ */
+void __iomem *bmips_cbr_addr __read_mostly;
+
 union bcm47xx_bus bcm47xx_bus;
 EXPORT_SYMBOL(bcm47xx_bus);
 

arch/mips/bcm63xx/prom.c

@@ -22,6 +22,9 @@ void __init prom_init(void)
 {
 	u32 reg, mask;
 
+	/* Cache CBR addr before CPU/DMA setup */
+	bmips_cbr_addr = BMIPS_GET_CBR();
+
 	bcm63xx_cpu_init();
 
 	/* stop any running watchdog */

arch/mips/bcm63xx/setup.c

@@ -12,6 +12,7 @@
 #include <linux/memblock.h>
 #include <linux/ioport.h>
 #include <linux/pm.h>
+#include <asm/bmips.h>
 #include <asm/bootinfo.h>
 #include <asm/time.h>
 #include <asm/reboot.h>
@@ -22,6 +23,13 @@
 #include <bcm63xx_io.h>
 #include <bcm63xx_gpio.h>
 
+/*
+ * CBR addr doesn't change and we can cache it.
+ * For broken SoC/Bootloader CBR addr might also be provided via DT
+ * with "brcm,bmips-cbr-reg" in the "cpus" node.
+ */
+void __iomem *bmips_cbr_addr __read_mostly;
+
 void bcm63xx_machine_halt(void)
 {
 	pr_info("System halted\n");

arch/mips/bmips/dma.c

@@ -9,7 +9,7 @@ bool bmips_rac_flush_disable;
 
 void arch_sync_dma_for_cpu_all(void)
 {
-	void __iomem *cbr = BMIPS_GET_CBR();
+	void __iomem *cbr = bmips_cbr_addr;
 	u32 cfg;
 
 	if (boot_cpu_type() != CPU_BMIPS3300 &&

arch/mips/bmips/setup.c

@@ -34,6 +34,13 @@
 #define REG_BCM6328_OTP		((void __iomem *)CKSEG1ADDR(0x1000062c))
 #define BCM6328_TP1_DISABLED	BIT(9)
 
+/*
+ * CBR addr doesn't change and we can cache it.
+ * For broken SoC/Bootloader CBR addr might also be provided via DT
+ * with "brcm,bmips-cbr-reg" in the "cpus" node.
+ */
+void __iomem *bmips_cbr_addr __read_mostly;
+
 extern bool bmips_rac_flush_disable;
 
 static const unsigned long kbase = VMLINUX_LOAD_ADDRESS & 0xfff00000;
@@ -111,7 +118,7 @@ static void bcm6358_quirks(void)
 	 * because the bootloader is not initializing it properly.
 	 */
 	bmips_rac_flush_disable = !!(read_c0_brcm_cmt_local() & (1 << 31)) ||
-				  !!BMIPS_GET_CBR();
+				  !!bmips_cbr_addr;
 }
 
 static void bcm6368_quirks(void)
@@ -144,6 +151,8 @@ static void __init bmips_init_cfe(void)
 
 void __init prom_init(void)
 {
+	/* Cache CBR addr before CPU/DMA setup */
+	bmips_cbr_addr = BMIPS_GET_CBR();
 	bmips_init_cfe();
 	bmips_cpu_setup();
 	register_bmips_smp_ops();
@@ -203,13 +212,35 @@ void __init plat_mem_setup(void)
 void __init device_tree_init(void)
 {
 	struct device_node *np;
+	u32 addr;
 
 	unflatten_and_copy_device_tree();
 
 	/* Disable SMP boot unless both CPUs are listed in DT and !disabled */
 	np = of_find_node_by_name(NULL, "cpus");
-	if (np && of_get_available_child_count(np) <= 1)
+	if (!np)
+		return;
+
+	if (of_get_available_child_count(np) <= 1)
 		bmips_smp_enabled = 0;
+
+	/* Check if DT provide a CBR address */
+	if (of_property_read_u32(np, "brcm,bmips-cbr-reg", &addr))
+		goto exit;
+
+	/* Make sure CBR address is outside DRAM window */
+	if (addr >= (u32)memblock_start_of_DRAM() &&
+	    addr < (u32)memblock_end_of_DRAM()) {
+		WARN(1, "DT CBR %x inside DRAM window. Ignoring DT CBR.\n",
+		     addr);
+		goto exit;
+	}
+
+	bmips_cbr_addr = (void __iomem *)addr;
+	/* Since CBR is provided by DT, enable RAC flush */
+	bmips_rac_flush_disable = false;
+
+exit:
 	of_node_put(np);
 }
 

arch/mips/boot/dts/Makefile

 # SPDX-License-Identifier: GPL-2.0
 subdir-$(CONFIG_BMIPS_GENERIC)		+= brcm
 subdir-$(CONFIG_CAVIUM_OCTEON_SOC)	+= cavium-octeon
+subdir-$(CONFIG_EYEQ)			+= mobileye
 subdir-$(CONFIG_FIT_IMAGE_FDT_MARDUK)   += img
 subdir-$(CONFIG_FIT_IMAGE_FDT_BOSTON)	+= img
 subdir-$(CONFIG_MACH_INGENIC)		+= ingenic
@@ -8,7 +9,6 @@ subdir-$(CONFIG_LANTIQ)			+= lantiq
 subdir-$(CONFIG_MACH_LOONGSON64)	+= loongson
 subdir-$(CONFIG_SOC_VCOREIII)		+= mscc
 subdir-$(CONFIG_MIPS_MALTA)		+= mti
-subdir-$(CONFIG_MACH_EYEQ5)		+= mobileye
 subdir-$(CONFIG_LEGACY_BOARD_SEAD3)	+= mti
 subdir-$(CONFIG_FIT_IMAGE_FDT_NI169445)	+= ni
 subdir-$(CONFIG_MACH_PIC32)		+= pic32

arch/mips/boot/dts/loongson/loongson64-2k1000.dtsi

@@ -23,14 +23,6 @@ cpu0: cpu@0 {
 		};
 	};
 
-	memory@200000 {
-		compatible = "memory";
-		device_type = "memory";
-		reg = <0x00000000 0x00200000 0x00000000 0x0ee00000>, /* 238 MB at 2 MB */
-			<0x00000000 0x20000000 0x00000000 0x1f000000>, /* 496 MB at 512 MB */
-			<0x00000001 0x10000000 0x00000001 0xb0000000>; /* 6912 MB at 4352MB */
-	};
-
 	cpu_clk: cpu_clk {
 		#clock-cells = <0>;
 		compatible = "fixed-clock";
@@ -52,6 +44,13 @@ package0: bus@10000000 {
 			0 0x40000000 0 0x40000000 0 0x40000000
 			0xfe 0x00000000 0xfe 0x00000000 0 0x40000000>;
 
+		isa@18000000 {
+			compatible = "isa";
+			#size-cells = <1>;
+			#address-cells = <2>;
+			ranges = <1 0x0 0x0 0x18000000 0x4000>;
+		};
+
 		pm: reset-controller@1fe07000 {
 			compatible = "loongson,ls2k-pm";
 			reg = <0 0x1fe07000 0 0x422>;
@@ -100,8 +99,8 @@ liointc1: interrupt-controller@1fe11440 {
 		rtc0: rtc@1fe07800 {
 			compatible = "loongson,ls2k1000-rtc";
 			reg = <0 0x1fe07800 0 0x78>;
-			interrupt-parent = <&liointc0>;
-			interrupts = <60 IRQ_TYPE_LEVEL_LOW>;
+			interrupt-parent = <&liointc1>;
+			interrupts = <8 IRQ_TYPE_LEVEL_HIGH>;
 		};
 
 		uart0: serial@1fe00000 {
@@ -109,7 +108,7 @@ uart0: serial@1fe00000 {
 			reg = <0 0x1fe00000 0 0x8>;
 			clock-frequency = <125000000>;
 			interrupt-parent = <&liointc0>;
-			interrupts = <0 IRQ_TYPE_LEVEL_LOW>;
+			interrupts = <0 IRQ_TYPE_LEVEL_HIGH>;
 			no-loopback-test;
 		};
 
@@ -118,7 +117,6 @@ pci@1a000000 {
 			device_type = "pci";
 			#address-cells = <3>;
 			#size-cells = <2>;
-			#interrupt-cells = <2>;
 
 			reg = <0 0x1a000000 0 0x02000000>,
 				<0xfe 0x00000000 0 0x20000000>;
@@ -133,11 +131,12 @@ gmac@3,0 {
 						   "pciclass0c03";
 
 				reg = <0x1800 0x0 0x0 0x0 0x0>;
-				interrupts = <12 IRQ_TYPE_LEVEL_LOW>,
-					     <13 IRQ_TYPE_LEVEL_LOW>;
+				interrupts = <12 IRQ_TYPE_LEVEL_HIGH>,
+					     <13 IRQ_TYPE_LEVEL_HIGH>;
 				interrupt-names = "macirq", "eth_lpi";
 				interrupt-parent = <&liointc0>;
-				phy-mode = "rgmii";
+				phy-mode = "rgmii-id";
+				phy-handle = <&phy1>;
 				mdio {
 					#address-cells = <1>;
 					#size-cells = <0>;
@@ -156,11 +155,12 @@ gmac@3,1 {
 						   "loongson, pci-gmac";
 
 				reg = <0x1900 0x0 0x0 0x0 0x0>;
-				interrupts = <14 IRQ_TYPE_LEVEL_LOW>,
-					     <15 IRQ_TYPE_LEVEL_LOW>;
+				interrupts = <14 IRQ_TYPE_LEVEL_HIGH>,
+					     <15 IRQ_TYPE_LEVEL_HIGH>;
 				interrupt-names = "macirq", "eth_lpi";
 				interrupt-parent = <&liointc0>;
-				phy-mode = "rgmii";
+				phy-mode = "rgmii-id";
+				phy-handle = <&phy1>;
 				mdio {
 					#address-cells = <1>;
 					#size-cells = <0>;
@@ -178,7 +178,7 @@ ehci@4,1 {
 						   "pciclass0c03";
 
 				reg = <0x2100 0x0 0x0 0x0 0x0>;
-				interrupts = <18 IRQ_TYPE_LEVEL_LOW>;
+				interrupts = <18 IRQ_TYPE_LEVEL_HIGH>;
 				interrupt-parent = <&liointc1>;
 			};
 
@@ -189,7 +189,7 @@ ohci@4,2 {
 						   "pciclass0c03";
 
 				reg = <0x2200 0x0 0x0 0x0 0x0>;
-				interrupts = <19 IRQ_TYPE_LEVEL_LOW>;
+				interrupts = <19 IRQ_TYPE_LEVEL_HIGH>;
 				interrupt-parent = <&liointc1>;
 			};
 
@@ -200,97 +200,121 @@ sata@8,0 {
 						   "pciclass0106";
 
 				reg = <0x4000 0x0 0x0 0x0 0x0>;
-				interrupts = <19 IRQ_TYPE_LEVEL_LOW>;
+				interrupts = <19 IRQ_TYPE_LEVEL_HIGH>;
 				interrupt-parent = <&liointc0>;
 			};
 
-			pci_bridge@9,0 {
+			pcie@9,0 {
 				compatible = "pci0014,7a19.0",
 						   "pci0014,7a19",
 						   "pciclass060400",
 						   "pciclass0604";
 
 				reg = <0x4800 0x0 0x0 0x0 0x0>;
+				#address-cells = <3>;
+				#size-cells = <2>;
+				device_type = "pci";
 				#interrupt-cells = <1>;
-				interrupts = <0 IRQ_TYPE_LEVEL_LOW>;
+				interrupts = <0 IRQ_TYPE_LEVEL_HIGH>;
 				interrupt-parent = <&liointc1>;
 				interrupt-map-mask = <0 0 0 0>;
-				interrupt-map = <0 0 0 0 &liointc1 0 IRQ_TYPE_LEVEL_LOW>;
+				interrupt-map = <0 0 0 0 &liointc1 0 IRQ_TYPE_LEVEL_HIGH>;
+				ranges;
 				external-facing;
 			};
 
-			pci_bridge@a,0 {
+			pcie@a,0 {
 				compatible = "pci0014,7a09.0",
 						   "pci0014,7a09",
 						   "pciclass060400",
 						   "pciclass0604";
 
 				reg = <0x5000 0x0 0x0 0x0 0x0>;
+				#address-cells = <3>;
+				#size-cells = <2>;
+				device_type = "pci";
 				#interrupt-cells = <1>;
-				interrupts = <1 IRQ_TYPE_LEVEL_LOW>;
+				interrupts = <1 IRQ_TYPE_LEVEL_HIGH>;
 				interrupt-parent = <&liointc1>;
 				interrupt-map-mask = <0 0 0 0>;
-				interrupt-map = <0 0 0 0 &liointc1 1 IRQ_TYPE_LEVEL_LOW>;
+				interrupt-map = <0 0 0 0 &liointc1 1 IRQ_TYPE_LEVEL_HIGH>;
+				ranges;
 				external-facing;
 			};
 
-			pci_bridge@b,0 {
+			pcie@b,0 {
 				compatible = "pci0014,7a09.0",
 						   "pci0014,7a09",
 						   "pciclass060400",
 						   "pciclass0604";
 
 				reg = <0x5800 0x0 0x0 0x0 0x0>;
+				#address-cells = <3>;
+				#size-cells = <2>;
+				device_type = "pci";
 				#interrupt-cells = <1>;
-				interrupts = <2 IRQ_TYPE_LEVEL_LOW>;
+				interrupts = <2 IRQ_TYPE_LEVEL_HIGH>;
 				interrupt-parent = <&liointc1>;
 				interrupt-map-mask = <0 0 0 0>;
-				interrupt-map = <0 0 0 0 &liointc1 2 IRQ_TYPE_LEVEL_LOW>;
+				interrupt-map = <0 0 0 0 &liointc1 2 IRQ_TYPE_LEVEL_HIGH>;
+				ranges;
 				external-facing;
 			};
 
-			pci_bridge@c,0 {
+			pcie@c,0 {
 				compatible = "pci0014,7a09.0",
 						   "pci0014,7a09",
 						   "pciclass060400",
 						   "pciclass0604";
 
 				reg = <0x6000 0x0 0x0 0x0 0x0>;
+				#address-cells = <3>;
+				#size-cells = <2>;
+				device_type = "pci";
 				#interrupt-cells = <1>;
-				interrupts = <3 IRQ_TYPE_LEVEL_LOW>;
+				interrupts = <3 IRQ_TYPE_LEVEL_HIGH>;
 				interrupt-parent = <&liointc1>;
 				interrupt-map-mask = <0 0 0 0>;
-				interrupt-map = <0 0 0 0 &liointc1 3 IRQ_TYPE_LEVEL_LOW>;
+				interrupt-map = <0 0 0 0 &liointc1 3 IRQ_TYPE_LEVEL_HIGH>;
+				ranges;
 				external-facing;
 			};
 
-			pci_bridge@d,0 {
+			pcie@d,0 {
 				compatible = "pci0014,7a19.0",
 						   "pci0014,7a19",
 						   "pciclass060400",
 						   "pciclass0604";
 
 				reg = <0x6800 0x0 0x0 0x0 0x0>;
+				#address-cells = <3>;
+				#size-cells = <2>;
+				device_type = "pci";
 				#interrupt-cells = <1>;
-				interrupts = <4 IRQ_TYPE_LEVEL_LOW>;
+				interrupts = <4 IRQ_TYPE_LEVEL_HIGH>;
 				interrupt-parent = <&liointc1>;
 				interrupt-map-mask = <0 0 0 0>;
-				interrupt-map = <0 0 0 0 &liointc1 4 IRQ_TYPE_LEVEL_LOW>;
+				interrupt-map = <0 0 0 0 &liointc1 4 IRQ_TYPE_LEVEL_HIGH>;
+				ranges;
 				external-facing;
 			};
 
-			pci_bridge@e,0 {
+			pcie@e,0 {
 				compatible = "pci0014,7a09.0",
 						   "pci0014,7a09",
 						   "pciclass060400",
 						   "pciclass0604";
 
 				reg = <0x7000 0x0 0x0 0x0 0x0>;
+				#address-cells = <3>;
+				#size-cells = <2>;
+				device_type = "pci";
 				#interrupt-cells = <1>;
-				interrupts = <5 IRQ_TYPE_LEVEL_LOW>;
+				interrupts = <5 IRQ_TYPE_LEVEL_HIGH>;
 				interrupt-parent = <&liointc1>;
 				interrupt-map-mask = <0 0 0 0>;
-				interrupt-map = <0 0 0 0 &liointc1 5 IRQ_TYPE_LEVEL_LOW>;
+				interrupt-map = <0 0 0 0 &liointc1 5 IRQ_TYPE_LEVEL_HIGH>;
+				ranges;
 				external-facing;
 			};
 

arch/mips/boot/dts/loongson/loongson64g_4core_ls7a.dts

@@ -33,6 +33,7 @@ msi: msi-controller@2ff00000 {
 		compatible = "loongson,pch-msi-1.0";
 		reg = <0 0x2ff00000 0 0x8>;
 		interrupt-controller;
+		#interrupt-cells = <1>;
 		msi-controller;
 		loongson,msi-base-vec = <64>;
 		loongson,msi-num-vecs = <192>;

arch/mips/boot/dts/mobileye/Makefile

@@ -2,3 +2,4 @@
 # Copyright 2023 Mobileye Vision Technologies Ltd.
 
 dtb-$(CONFIG_MACH_EYEQ5)		+= eyeq5-epm5.dtb
+dtb-$(CONFIG_MACH_EYEQ6H)		+= eyeq6h-epm6.dtb

arch/mips/boot/dts/mobileye/eyeq5-fixed-clocks.dtsi → arch/mips/boot/dts/mobileye/eyeq5-clocks.dtsi

@@ -3,42 +3,20 @@
  * Copyright 2023 Mobileye Vision Technologies Ltd.
  */
 
+#include <dt-bindings/clock/mobileye,eyeq5-clk.h>
+
 / {
 	/* Fixed clock */
-	pll_cpu: pll-cpu {
-		compatible = "fixed-clock";
-		#clock-cells = <0>;
-		clock-frequency = <1500000000>;
-	};
-
-	pll_vdi: pll-vdi {
-		compatible = "fixed-clock";
-		#clock-cells = <0>;
-		clock-frequency = <1280000000>;
-	};
-
-	pll_per: pll-per {
-		compatible = "fixed-clock";
-		#clock-cells = <0>;
-		clock-frequency = <2000000000>;
-	};
-
-	pll_ddr0: pll-ddr0 {
-		compatible = "fixed-clock";
-		#clock-cells = <0>;
-		clock-frequency = <1857210000>;
-	};
-
-	pll_ddr1: pll-ddr1 {
+	xtal: xtal {
 		compatible = "fixed-clock";
 		#clock-cells = <0>;
-		clock-frequency = <1857210000>;
+		clock-frequency = <30000000>;
 	};
 
 /* PLL_CPU derivatives */
 	occ_cpu: occ-cpu {
 		compatible = "fixed-factor-clock";
-		clocks = <&pll_cpu>;
+		clocks = <&olb EQ5C_PLL_CPU>;
 		#clock-cells = <0>;
 		clock-div = <1>;
 		clock-mult = <1>;
@@ -101,7 +79,7 @@ mem_clk: mem-clk {
 	};
 	occ_isram: occ-isram {
 		compatible = "fixed-factor-clock";
-		clocks = <&pll_cpu>;
+		clocks = <&olb EQ5C_PLL_CPU>;
 		#clock-cells = <0>;
 		clock-div = <2>;
 		clock-mult = <1>;
@@ -115,7 +93,7 @@ isram_clk: isram-clk { /* gate ClkRstGen_isram */
 	};
 	occ_dbu: occ-dbu {
 		compatible = "fixed-factor-clock";
-		clocks = <&pll_cpu>;
+		clocks = <&olb EQ5C_PLL_CPU>;
 		#clock-cells = <0>;
 		clock-div = <10>;
 		clock-mult = <1>;
@@ -130,7 +108,7 @@ si_dbu_tp_pclk: si-dbu-tp-pclk { /* gate ClkRstGen_dbu */
 /* PLL_VDI derivatives */
 	occ_vdi: occ-vdi {
 		compatible = "fixed-factor-clock";
-		clocks = <&pll_vdi>;
+		clocks = <&olb EQ5C_PLL_VDI>;
 		#clock-cells = <0>;
 		clock-div = <2>;
 		clock-mult = <1>;
@@ -144,7 +122,7 @@ vdi_clk: vdi-clk { /* gate ClkRstGen_vdi */
 	};
 	occ_can_ser: occ-can-ser {
 		compatible = "fixed-factor-clock";
-		clocks = <&pll_vdi>;
+		clocks = <&olb EQ5C_PLL_VDI>;
 		#clock-cells = <0>;
 		clock-div = <16>;
 		clock-mult = <1>;
@@ -158,7 +136,7 @@ can_ser_clk: can-ser-clk { /* gate ClkRstGen_can_ser */
 	};
 	i2c_ser_clk: i2c-ser-clk {
 		compatible = "fixed-factor-clock";
-		clocks = <&pll_vdi>;
+		clocks = <&olb EQ5C_PLL_VDI>;
 		#clock-cells = <0>;
 		clock-div = <20>;
 		clock-mult = <1>;
@@ -166,7 +144,7 @@ i2c_ser_clk: i2c-ser-clk {
 /* PLL_PER derivatives */
 	occ_periph: occ-periph {
 		compatible = "fixed-factor-clock";
-		clocks = <&pll_per>;
+		clocks = <&olb EQ5C_PLL_PER>;
 		#clock-cells = <0>;
 		clock-div = <16>;
 		clock-mult = <1>;
@@ -225,7 +203,7 @@ gpio_clk: gpio-clk {
 	};
 	emmc_sys_clk: emmc-sys-clk {
 		compatible = "fixed-factor-clock";
-		clocks = <&pll_per>;
+		clocks = <&olb EQ5C_PLL_PER>;
 		#clock-cells = <0>;
 		clock-div = <10>;
 		clock-mult = <1>;
@@ -233,7 +211,7 @@ emmc_sys_clk: emmc-sys-clk {
 	};
 	ccf_ctrl_clk: ccf-ctrl-clk {
 		compatible = "fixed-factor-clock";
-		clocks = <&pll_per>;
+		clocks = <&olb EQ5C_PLL_PER>;
 		#clock-cells = <0>;
 		clock-div = <4>;
 		clock-mult = <1>;
@@ -241,7 +219,7 @@ ccf_ctrl_clk: ccf-ctrl-clk {
 	};
 	occ_mjpeg_core: occ-mjpeg-core {
 		compatible = "fixed-factor-clock";
-		clocks = <&pll_per>;
+		clocks = <&olb EQ5C_PLL_PER>;
 		#clock-cells = <0>;
 		clock-div = <2>;
 		clock-mult = <1>;
@@ -265,7 +243,7 @@ mjpeg_core_clk: mjpeg-core-clk { /* gate ClkRstGen_mjpeg_gen */
 	};
 	fcmu_a_clk: fcmu-a-clk {
 		compatible = "fixed-factor-clock";
-		clocks = <&pll_per>;
+		clocks = <&olb EQ5C_PLL_PER>;
 		#clock-cells = <0>;
 		clock-div = <20>;
 		clock-mult = <1>;
@@ -273,7 +251,7 @@ fcmu_a_clk: fcmu-a-clk {
 	};
 	occ_pci_sys: occ-pci-sys {
 		compatible = "fixed-factor-clock";
-		clocks = <&pll_per>;
+		clocks = <&olb EQ5C_PLL_PER>;
 		#clock-cells = <0>;
 		clock-div = <8>;
 		clock-mult = <1>;

arch/mips/boot/dts/mobileye/eyeq5-pins.dtsi

+// SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+
+/*
+ * Default pin configuration for Mobileye EyeQ5 boards. We mostly create one
+ * pin configuration node per function.
+ */
+
+&olb {
+	timer0_pins: timer0-pins {
+		function = "timer0";
+		pins = "PA0", "PA1";
+	};
+	timer1_pins: timer1-pins {
+		function = "timer1";
+		pins = "PA2", "PA3";
+	};
+	timer2_pins: timer2-pins {
+		function = "timer2";
+		pins = "PA4", "PA5";
+	};
+	pps0_pins: pps0-pin {
+		function = "timer2";
+		pins = "PA4";
+	};
+	pps1_pins: pps1-pin {
+		function = "timer2";
+		pins = "PA5";
+	};
+	timer5_ext_pins: timer5-ext-pins {
+		function = "timer5";
+		pins = "PA6", "PA7", "PA8", "PA9";
+	};
+	timer5_ext_input_pins: timer5-ext-input-pins {
+		function = "timer5";
+		pins = "PA6", "PA7";
+	};
+	timer5_ext_incap_a_pins: timer5-ext-incap-a-pin {
+		function = "timer5";
+		pins = "PA6";
+	};
+	timer5_ext_incap_b_pins: timer5-ext-incap-b-pin {
+		function = "timer5";
+		pins = "PA7";
+	};
+	can0_pins: can0-pins {
+		function = "can0";
+		pins = "PA14", "PA15";
+	};
+	can1_pins: can1-pins {
+		function = "can1";
+		pins = "PA16", "PA17";
+	};
+	uart0_pins: uart0-pins {
+		function = "uart0";
+		pins = "PA10", "PA11";
+	};
+	uart1_pins: uart1-pins {
+		function = "uart1";
+		pins = "PA12", "PA13";
+	};
+	spi0_pins: spi0-pins {
+		function = "spi0";
+		pins = "PA18", "PA19", "PA20", "PA21", "PA22";
+	};
+	spi1_pins: spi1-pins {
+		function = "spi1";
+		pins = "PA23", "PA24", "PA25", "PA26", "PA27";
+	};
+	spi1_slave_pins: spi1-slave-pins {
+		function = "spi1";
+		pins = "PA24", "PA25", "PA26";
+	};
+	refclk0_pins: refclk0-pin {
+		function = "refclk0";
+		pins = "PA28";
+	};
+	timer3_pins: timer3-pins {
+		function = "timer3";
+		pins = "PB0", "PB1";
+	};
+	timer4_pins: timer4-pins {
+		function = "timer4";
+		pins = "PB2", "PB3";
+	};
+	timer6_ext_pins: timer6-ext-pins {
+		function = "timer6";
+		pins = "PB4", "PB5", "PB6", "PB7";
+	};
+	timer6_ext_input_pins: timer6-ext-input-pins {
+		function = "timer6";
+		pins = "PB4", "PB5";
+	};
+	timer6_ext_incap_a_pins: timer6-ext-incap-a-pin {
+		function = "timer6";
+		pins = "PB4";
+	};
+	timer6_ext_incap_b_pins: timer6-ext-incap-b-pin {
+		function = "timer6";
+		pins = "PB5";
+	};
+	can2_pins: can2-pins {
+		function = "can2";
+		pins = "PB10", "PB11";
+	};
+	uart2_pins: uart2-pins {
+		function = "uart2";
+		pins = "PB8", "PB9";
+	};
+	spi2_pins: spi2-pins {
+		function = "spi2";
+		pins = "PB12", "PB13", "PB14", "PB15", "PB16";
+	};
+	spi3_pins: spi3-pins {
+		function = "spi3";
+		pins = "PB17", "PB18", "PB19", "PB20", "PB21";
+	};
+	spi3_slave_pins: spi3-slave-pins {
+		function = "spi3";
+		pins = "PB18", "PB19", "PB20";
+	};
+	mclk0_pins: mclk0-pin {
+		function = "mclk0";
+		pins = "PB22";
+	};
+};

arch/mips/boot/dts/mobileye/eyeq5.dtsi

@@ -5,7 +5,7 @@
 
 #include <dt-bindings/interrupt-controller/mips-gic.h>
 
-#include "eyeq5-fixed-clocks.dtsi"
+#include "eyeq5-clocks.dtsi"
 
 / {
 	#address-cells = <2>;
@@ -78,6 +78,9 @@ uart0: serial@800000 {
 			interrupts = <GIC_SHARED 6 IRQ_TYPE_LEVEL_HIGH>;
 			clocks  = <&uart_clk>, <&occ_periph>;
 			clock-names = "uartclk", "apb_pclk";
+			resets = <&olb 0 10>;
+			pinctrl-names = "default";
+			pinctrl-0 = <&uart0_pins>;
 		};
 
 		uart1: serial@900000 {
@@ -88,6 +91,9 @@ uart1: serial@900000 {
 			interrupts = <GIC_SHARED 6 IRQ_TYPE_LEVEL_HIGH>;
 			clocks  = <&uart_clk>, <&occ_periph>;
 			clock-names = "uartclk", "apb_pclk";
+			resets = <&olb 0 11>;
+			pinctrl-names = "default";
+			pinctrl-0 = <&uart1_pins>;
 		};
 
 		uart2: serial@a00000 {
@@ -98,6 +104,18 @@ uart2: serial@a00000 {
 			interrupts = <GIC_SHARED 6 IRQ_TYPE_LEVEL_HIGH>;
 			clocks  = <&uart_clk>, <&occ_periph>;
 			clock-names = "uartclk", "apb_pclk";
+			resets = <&olb 0 12>;
+			pinctrl-names = "default";
+			pinctrl-0 = <&uart2_pins>;
+		};
+
+		olb: system-controller@e00000 {
+			compatible = "mobileye,eyeq5-olb", "syscon";
+			reg = <0 0xe00000 0x0 0x400>;
+			#reset-cells = <2>;
+			#clock-cells = <1>;
+			clocks = <&xtal>;
+			clock-names = "ref";
 		};
 
 		gic: interrupt-controller@140000 {
@@ -122,3 +140,5 @@ timer {
 		};
 	};
 };
+
+#include "eyeq5-pins.dtsi"

arch/mips/boot/dts/mobileye/eyeq6h-epm6.dts

+// SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+/*
+ * Copyright 2024 Mobileye Vision Technologies Ltd.
+ */
+
+/dts-v1/;
+
+#include "eyeq6h.dtsi"
+
+/ {
+	compatible = "mobileye,eyeq6-epm6", "mobileye,eyeq6";
+	model = "Mobile EyeQ6H MP6 Evaluation board";
+
+	chosen {
+		stdout-path = "serial0:921600n8";
+	};
+
+	memory@0 {
+		device_type = "memory";
+		reg = <0x1 0x00000000 0x1 0x00000000>;
+	};
+};

arch/mips/boot/dts/mobileye/eyeq6h-fixed-clocks.dtsi

+// SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+/*
+ * Copyright 2023 Mobileye Vision Technologies Ltd.
+ */
+
+#include <dt-bindings/clock/mobileye,eyeq5-clk.h>
+
+/ {
+	xtal: clock-30000000 {
+		compatible = "fixed-clock";
+		#clock-cells = <0>;
+		clock-frequency = <30000000>;
+	};
+
+	pll_west: clock-2000000000-west {
+		compatible = "fixed-clock";
+		#clock-cells = <0>;
+		clock-frequency = <2000000000>;
+	};
+
+	pll_cpu: clock-2000000000-cpu {
+		compatible = "fixed-clock";
+		#clock-cells = <0>;
+		clock-frequency = <2000000000>;
+	};
+
+	/* pll-cpu derivatives */
+	occ_cpu: clock-2000000000-occ-cpu {
+		compatible = "fixed-factor-clock";
+		clocks = <&pll_cpu>;
+		#clock-cells = <0>;
+		clock-div = <1>;
+		clock-mult = <1>;
+	};
+
+	/* pll-west derivatives */
+	occ_periph_w: clock-200000000 {
+		compatible = "fixed-factor-clock";
+		clocks = <&pll_west>;
+		#clock-cells = <0>;
+		clock-div = <10>;
+		clock-mult = <1>;
+	};
+	uart_clk: clock-200000000-uart {
+		compatible = "fixed-factor-clock";
+		clocks = <&occ_periph_w>;
+		#clock-cells = <0>;
+		clock-div = <1>;
+		clock-mult = <1>;
+	};
+
+};

arch/mips/boot/dts/mobileye/eyeq6h-pins.dtsi

+// SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+/*
+ * Copyright 2024 Mobileye Vision Technologies Ltd.
+ */
+
+/*
+ * MUX register structure
+ * bits    | field      | comment
+ * [0]     | MUX_SEL    | 0 - GPIO, 1 - alternative func
+ * [4]     | SW_LOOPBACK|
+ * [5]     | SW_OUT_HZ  |
+ * [7]     | DBG_IN     |
+ * [11:8]  | DS         | drive strength
+ * [13:12] | PUD        | pull-up/pull-down. 0, 3 - no, 1 - PD, 2 - PU
+ * [14]    | OD         | Open drain
+ * [15]    | ST_CFG     | Hysteretic input enable (Schmitt trigger)
+ */
+
+&pinctrl_west {
+	// TODO: use pinctrl-single,bias-pullup
+	// TODO: use pinctrl-single,bias-pulldown
+	// TODO: use pinctrl-single,drive-strength
+	// TODO: use pinctrl-single,input-schmitt
+
+	i2c0_pins: i2c0-pins {
+		pinctrl-single,pins = <
+			0x000 0x200	// I2C0_SCL pin
+			0x004 0x200	// I2C0_SDA pin
+		>;
+	};
+	i2c1_pins: i2c1-pins {
+		pinctrl-single,pins = <
+			0x008 0x200	// I2C1_SCL pin
+			0x00c 0x200	// I2C1_SDA pin
+		>;
+	};
+	eth0_pins: eth0-pins {
+		pinctrl-single,pins = <
+			0x080 1		// GPIO_C4__SMA0_MDC pin
+			0x084 1		// GPIO_C5__SMA0_MDIO pin
+		>;
+	};
+	uart0_pins: uart0-pins {
+		pinctrl-single,pins = <0x0a8 1>; // UART0 pin group
+	};
+	uart1_pins: uart1-pins {
+		pinctrl-single,pins = <0x0a0 1>; // UART1 pin group
+	};
+	spi0_pins: spi0-pins {
+		pinctrl-single,pins = <0x0ac 1>; // SPI0 pin group
+	};
+	spi1_pins: spi1-pins {
+		pinctrl-single,pins = <0x0a4 1>; // SPI1 pin group
+	};
+};
+
+&pinctrl_east {
+	i2c2_pins: i2c2-pins {
+		pinctrl-single,pins = <
+			0x000 0x200	// i2c2_SCL pin
+			0x004 0x200	// i2c2_SDA pin
+		>;
+	};
+	i2c3_pins: i2c3-pins {
+		pinctrl-single,pins = <
+			0x008 0x200	// i2c3_SCL pin
+			0x00c 0x200	// i2c3_SDA pin
+		>;
+	};
+	eth1_pins: eth1-pins {
+		pinctrl-single,pins = <
+			0x080 1	// GPIO_D4__SMA1_MDC pin
+			0x084 1	// GPIO_D5__SMA1_MDIO pin
+		>;
+	};
+	uart2_sel_pins: uart2-pins {
+		pinctrl-single,pins = <0x0a4 1>; // UART2 pin group
+	};
+	uart3_pins: uart3-pins {
+		pinctrl-single,pins = <0x09c 1>; // UART3 pin group
+	};
+	spi2_pins: spi2-pins {
+		pinctrl-single,pins = <0x0a8 1>; // SPI2 pin group
+	};
+	spi3_pins: spi3-pins {
+		pinctrl-single,pins = <0x0a0 1>; // SPI3 pin group
+	};
+};

arch/mips/boot/dts/mobileye/eyeq6h.dtsi

+// SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+/*
+ * Copyright 2024 Mobileye Vision Technologies Ltd.
+ */
+
+#include <dt-bindings/interrupt-controller/mips-gic.h>
+
+#include "eyeq6h-fixed-clocks.dtsi"
+
+/ {
+	#address-cells = <2>;
+	#size-cells = <2>;
+	cpus {
+		#address-cells = <1>;
+		#size-cells = <0>;
+		cpu@0 {
+			device_type = "cpu";
+			compatible = "img,i6500";
+			reg = <0>;
+			clocks = <&occ_cpu>;
+		};
+	};
+
+	aliases {
+		serial0 = &uart0;
+	};
+
+	cpu_intc: interrupt-controller {
+		compatible = "mti,cpu-interrupt-controller";
+		interrupt-controller;
+		#address-cells = <0>;
+		#interrupt-cells = <1>;
+	};
+
+	soc: soc {
+		compatible = "simple-bus";
+		#address-cells = <2>;
+		#size-cells = <2>;
+		ranges;
+
+		uart0: serial@d3331000 {
+			compatible = "arm,pl011", "arm,primecell";
+			reg = <0 0xd3331000 0x0 0x1000>;
+			reg-io-width = <4>;
+			interrupt-parent = <&gic>;
+			interrupts = <GIC_SHARED 43 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&occ_periph_w>, <&occ_periph_w>;
+			clock-names = "uartclk", "apb_pclk";
+		};
+
+		pinctrl_west: pinctrl@d3337000 {
+			compatible = "pinctrl-single";
+			reg = <0x0 0xd3337000 0x0 0xb0>;
+			#pinctrl-cells = <1>;
+			pinctrl-single,register-width = <32>;
+			pinctrl-single,function-mask = <0xffff>;
+		};
+
+		pinctrl_east: pinctrl@d3357000 {
+			compatible = "pinctrl-single";
+			reg = <0x0 0xd3357000 0x0 0xb0>;
+			#pinctrl-cells = <1>;
+			pinctrl-single,register-width = <32>;
+			pinctrl-single,function-mask = <0xffff>;
+		};
+
+		pinctrl_south: pinctrl@d8014000 {
+			compatible = "pinctrl-single";
+			reg = <0x0 0xd8014000 0x0 0xf8>;
+			#pinctrl-cells = <1>;
+			pinctrl-single,register-width = <32>;
+			pinctrl-single,function-mask = <0xffff>;
+		};
+
+		gic: interrupt-controller@f0920000 {
+			compatible = "mti,gic";
+			reg = <0x0 0xf0920000 0x0 0x20000>;
+			interrupt-controller;
+			#interrupt-cells = <3>;
+
+			/*
+			 * Declare the interrupt-parent even though the mti,gic
+			 * binding doesn't require it, such that the kernel can
+			 * figure out that cpu_intc is the root interrupt
+			 * controller & should be probed first.
+			 */
+			interrupt-parent = <&cpu_intc>;
+
+			timer {
+				compatible = "mti,gic-timer";
+				interrupts = <GIC_LOCAL 1 IRQ_TYPE_NONE>;
+				clocks = <&occ_cpu>;
+			};
+		};
+	};
+};
+
+#include "eyeq6h-pins.dtsi"

arch/mips/boot/dts/realtek/Makefile

 # SPDX-License-Identifier: GPL-2.0
 dtb-y	+= cisco_sg220-26.dtb
+dtb-y	+= cameo-rtl9302c-2x-rtl8224-2xge.dtb

arch/mips/boot/dts/realtek/cameo-rtl9302c-2x-rtl8224-2xge.dts

+// SPDX-License-Identifier: GPL-2.0-or-later
+/dts-v1/;
+
+#include "rtl930x.dtsi"
+
+#include <dt-bindings/input/input.h>
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/leds/common.h>
+#include <dt-bindings/thermal/thermal.h>
+
+/ {
+	compatible = "cameo,rtl9302c-2x-rtl8224-2xge", "realtek,rtl9302-soc";
+	model = "RTL9302C Development Board";
+
+	memory@0 {
+		device_type = "memory";
+		reg = <0x0 0x8000000>;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+};
+
+&uart0 {
+	status = "okay";
+};
+
+&spi0 {
+	status = "okay";
+	flash@0 {
+		compatible = "jedec,spi-nor";
+		reg = <0>;
+		spi-max-frequency = <10000000>;
+
+		partitions {
+			compatible = "fixed-partitions";
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			partition@0 {
+				label = "LOADER";
+				reg = <0x0 0xe0000>;
+				read-only;
+			};
+			partition@e0000 {
+				label = "BDINFO";
+				reg = <0xe0000 0x10000>;
+			};
+			partition@f0000 {
+				label = "SYSINFO";
+				reg = <0xf0000 0x10000>;
+				read-only;
+			};
+			partition@100000 {
+				label = "JFFS2 CFG";
+				reg = <0x100000 0x100000>;
+			};
+			partition@200000 {
+				label = "JFFS2 LOG";
+				reg = <0x200000 0x100000>;
+			};
+			partition@300000 {
+				label = "RUNTIME";
+				reg = <0x300000 0xe80000>;
+			};
+			partition@1180000 {
+				label = "RUNTIME2";
+				reg = <0x1180000 0xe80000>;
+			};
+		};
+	};
+};

arch/mips/boot/dts/realtek/rtl838x.dtsi

@@ -6,6 +6,7 @@ cpus {
 		#size-cells = <0>;
 
 		cpu@0 {
+			device_type = "cpu";
 			compatible = "mips,mips4KEc";
 			reg = <0>;
 			clocks = <&baseclk 0>;

arch/mips/boot/dts/realtek/rtl83xx.dtsi

@@ -22,7 +22,7 @@ soc: soc {
 		#size-cells = <1>;
 		ranges = <0x0 0x18000000 0x10000>;
 
-		uart0: uart@2000 {
+		uart0: serial@2000 {
 			compatible = "ns16550a";
 			reg = <0x2000 0x100>;
 
@@ -39,7 +39,7 @@ uart0: uart@2000 {
 			status = "disabled";
 		};
 
-		uart1: uart@2100 {
+		uart1: serial@2100 {
 			compatible = "ns16550a";
 			reg = <0x2100 0x100>;
 

arch/mips/boot/dts/realtek/rtl930x.dtsi

+// SPDX-License-Identifier: GPL-2.0-or-later OR BSD-2-Clause
+
+#include "rtl83xx.dtsi"
+
+/ {
+	compatible = "realtek,rtl9302-soc";
+
+	cpus {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		cpu@0 {
+			device_type = "cpu";
+			compatible = "mips,mips34Kc";
+			reg = <0>;
+			clocks = <&baseclk 0>;
+			clock-names = "cpu";
+		};
+	};
+
+	baseclk: clock-800mhz {
+		compatible = "fixed-clock";
+		#clock-cells = <0>;
+		clock-frequency = <800000000>;
+	};
+
+	lx_clk: clock-175mhz {
+		compatible = "fixed-clock";
+		#clock-cells = <0>;
+		clock-frequency  = <175000000>;
+	};
+};
+
+&soc {
+	intc: interrupt-controller@3000 {
+		compatible = "realtek,rtl9300-intc", "realtek,rtl-intc";
+		reg = <0x3000 0x18>, <0x3018 0x18>;
+		interrupt-controller;
+		#interrupt-cells = <1>;
+
+		interrupt-parent = <&cpuintc>;
+		interrupts = <2>, <3>, <4>, <5>, <6>, <7>;
+	};
+
+	spi0: spi@1200 {
+		compatible = "realtek,rtl8380-spi";
+		reg = <0x1200 0x100>;
+
+		#address-cells = <1>;
+		#size-cells = <0>;
+	};
+
+	timer0: timer@3200 {
+		compatible = "realtek,rtl9302-timer", "realtek,otto-timer";
+		reg = <0x3200 0x10>, <0x3210 0x10>, <0x3220 0x10>,
+		    <0x3230 0x10>, <0x3240 0x10>;
+
+		interrupt-parent = <&intc>;
+		interrupts = <7>, <8>, <9>, <10>, <11>;
+		clocks = <&lx_clk>;
+	};
+};
+
+&uart0 {
+	/delete-property/ clock-frequency;
+	clocks = <&lx_clk>;
+
+	interrupt-parent = <&intc>;
+	interrupts = <30>;
+};
+
+&uart1 {
+	/delete-property/ clock-frequency;
+	clocks = <&lx_clk>;
+
+	interrupt-parent = <&intc>;
+	interrupts = <31>;
+};
+

arch/mips/configs/ci20_defconfig

@@ -122,6 +122,7 @@ CONFIG_IR_GPIO_TX=m
 CONFIG_MEDIA_SUPPORT=m
 CONFIG_DRM=m
 CONFIG_DRM_DISPLAY_CONNECTOR=m
+CONFIG_DRM_DW_HDMI=m
 CONFIG_DRM_INGENIC=m
 CONFIG_DRM_INGENIC_DW_HDMI=m
 CONFIG_FB=y

arch/mips/configs/db1xxx_defconfig

@@ -12,7 +12,6 @@ CONFIG_MEMCG=y
 CONFIG_BLK_CGROUP=y
 CONFIG_CGROUP_SCHED=y
 CONFIG_CFS_BANDWIDTH=y
-CONFIG_RT_GROUP_SCHED=y
 CONFIG_CGROUP_FREEZER=y
 CONFIG_CGROUP_DEVICE=y
 CONFIG_CGROUP_CPUACCT=y

arch/mips/configs/eyeq5_defconfig

@@ -8,7 +8,6 @@ CONFIG_IKCONFIG_PROC=y
 CONFIG_MEMCG=y
 CONFIG_BLK_CGROUP=y
 CONFIG_CFS_BANDWIDTH=y
-CONFIG_RT_GROUP_SCHED=y
 CONFIG_CGROUP_PIDS=y
 CONFIG_CGROUP_FREEZER=y
 CONFIG_CPUSETS=y
@@ -19,6 +18,7 @@ CONFIG_USER_NS=y
 CONFIG_SCHED_AUTOGROUP=y
 CONFIG_BLK_DEV_INITRD=y
 CONFIG_EXPERT=y
+CONFIG_EYEQ=y
 CONFIG_MACH_EYEQ5=y
 CONFIG_FIT_IMAGE_FDT_EPM5=y
 CONFIG_PAGE_SIZE_16KB=y

arch/mips/configs/eyeq6_defconfig

+CONFIG_SYSVIPC=y
+CONFIG_NO_HZ_IDLE=y
+CONFIG_HIGH_RES_TIMERS=y
+CONFIG_BPF_SYSCALL=y
+CONFIG_TASKSTATS=y
+CONFIG_IKCONFIG=y
+CONFIG_IKCONFIG_PROC=y
+CONFIG_MEMCG=y
+CONFIG_BLK_CGROUP=y
+CONFIG_CFS_BANDWIDTH=y
+CONFIG_RT_GROUP_SCHED=y
+CONFIG_CGROUP_PIDS=y
+CONFIG_CGROUP_FREEZER=y
+CONFIG_CPUSETS=y
+CONFIG_CGROUP_DEVICE=y
+CONFIG_CGROUP_CPUACCT=y
+CONFIG_NAMESPACES=y
+CONFIG_USER_NS=y
+CONFIG_SCHED_AUTOGROUP=y
+CONFIG_BLK_DEV_INITRD=y
+CONFIG_EXPERT=y
+CONFIG_EYEQ=y
+CONFIG_MACH_EYEQ6H=y
+CONFIG_MIPS_CPS=y
+CONFIG_CPU_HAS_MSA=y
+CONFIG_NR_CPUS=16
+CONFIG_MIPS_RAW_APPENDED_DTB=y
+CONFIG_JUMP_LABEL=y
+CONFIG_PAGE_SIZE_16KB=y
+CONFIG_COMPAT_32BIT_TIME=y
+CONFIG_MODULES=y
+CONFIG_MODULE_UNLOAD=y
+CONFIG_TRIM_UNUSED_KSYMS=y
+# CONFIG_COMPAT_BRK is not set
+CONFIG_SPARSEMEM_MANUAL=y
+CONFIG_USERFAULTFD=y
+CONFIG_NET=y
+CONFIG_PACKET=y
+CONFIG_UNIX=y
+CONFIG_NET_KEY=y
+CONFIG_INET=y
+CONFIG_IP_PNP=y
+CONFIG_IP_PNP_DHCP=y
+CONFIG_NETFILTER=y
+CONFIG_CAN=y
+CONFIG_PCI=y
+CONFIG_PCI_MSI=y
+CONFIG_PCI_DEBUG=y
+CONFIG_PCI_ENDPOINT=y
+CONFIG_DEVTMPFS=y
+CONFIG_DEVTMPFS_MOUNT=y
+CONFIG_CONNECTOR=y
+CONFIG_MTD=y
+CONFIG_MTD_UBI=y
+CONFIG_MTD_UBI_BLOCK=y
+CONFIG_SCSI=y
+CONFIG_NETDEVICES=y
+CONFIG_MACVLAN=y
+CONFIG_IPVLAN=y
+CONFIG_MACB=y
+CONFIG_MARVELL_PHY=y
+CONFIG_MICREL_PHY=y
+CONFIG_CAN_M_CAN=y
+CONFIG_SERIAL_AMBA_PL011=y
+CONFIG_SERIAL_AMBA_PL011_CONSOLE=y
+CONFIG_HW_RANDOM=y
+CONFIG_I2C=y
+CONFIG_I2C_CHARDEV=y
+# CONFIG_PTP_1588_CLOCK is not set
+CONFIG_PINCTRL=y
+CONFIG_PINCTRL_SINGLE=y
+CONFIG_MFD_SYSCON=y
+CONFIG_HID_A4TECH=y
+CONFIG_HID_BELKIN=y
+CONFIG_HID_CHERRY=y
+CONFIG_HID_CYPRESS=y
+CONFIG_HID_EZKEY=y
+CONFIG_HID_ITE=y
+CONFIG_HID_KENSINGTON=y
+CONFIG_HID_REDRAGON=y
+CONFIG_HID_MICROSOFT=y
+CONFIG_HID_MONTEREY=y
+CONFIG_MMC=y
+CONFIG_MMC_SDHCI=y
+# CONFIG_IOMMU_SUPPORT is not set
+CONFIG_RESET_CONTROLLER=y
+# CONFIG_NVMEM is not set
+CONFIG_EXT4_FS=y
+CONFIG_EXT4_FS_POSIX_ACL=y
+CONFIG_EXT4_FS_SECURITY=y
+CONFIG_FS_ENCRYPTION=y
+CONFIG_FUSE_FS=y
+CONFIG_CUSE=y
+CONFIG_MSDOS_FS=y
+CONFIG_VFAT_FS=y
+CONFIG_TMPFS=y
+CONFIG_TMPFS_POSIX_ACL=y
+CONFIG_UBIFS_FS=y
+CONFIG_NFS_FS=y
+CONFIG_NFS_V3_ACL=y
+CONFIG_NFS_V4=y
+CONFIG_NFS_V4_1=y
+CONFIG_NFS_V4_2=y
+CONFIG_ROOT_NFS=y
+CONFIG_CRYPTO_CRC32_MIPS=y
+CONFIG_FRAME_WARN=1024
+CONFIG_DEBUG_FS=y
+# CONFIG_RCU_TRACE is not set
+# CONFIG_FTRACE is not set
+CONFIG_CMDLINE_BOOL=y
+CONFIG_CMDLINE="earlycon"

arch/mips/configs/generic/64r6.config

@@ -3,4 +3,6 @@ CONFIG_64BIT=y
 CONFIG_MIPS32_O32=y
 CONFIG_MIPS32_N32=y
 
+CONFIG_CPU_HAS_MSA=y
 CONFIG_CRYPTO_CRC32_MIPS=y
+CONFIG_VIRTUALIZATION=y

arch/mips/configs/generic/board-litex.config

+CONFIG_LITEX_LITEETH=y
+CONFIG_SERIAL_LITEUART=y
+CONFIG_SERIAL_LITEUART_CONSOLE=y
+CONFIG_MMC=y
+CONFIG_MMC_LITEX=y
+CONFIG_LITEX_SOC_CONTROLLER=y
+CONFIG_USB_OHCI_HCD=y
+CONFIG_USB_OHCI_HCD_PLATFORM=y

arch/mips/configs/generic_defconfig

@@ -5,7 +5,6 @@ CONFIG_IKCONFIG_PROC=y
 CONFIG_MEMCG=y
 CONFIG_BLK_CGROUP=y
 CONFIG_CFS_BANDWIDTH=y
-CONFIG_RT_GROUP_SCHED=y
 CONFIG_CGROUP_PIDS=y
 CONFIG_CGROUP_FREEZER=y
 CONFIG_CPUSETS=y

arch/mips/configs/ip30_defconfig

+CONFIG_SYSVIPC=y
+CONFIG_POSIX_MQUEUE=y
+CONFIG_NO_HZ=y
+CONFIG_HIGH_RES_TIMERS=y
+CONFIG_IKCONFIG=y
+CONFIG_IKCONFIG_PROC=y
+CONFIG_LOG_BUF_SHIFT=15
+CONFIG_CGROUPS=y
+CONFIG_CPUSETS=y
+CONFIG_RELAY=y
+CONFIG_EXPERT=y
+CONFIG_SGI_IP30=y
+CONFIG_SMP=y
+CONFIG_NR_CPUS=2
+CONFIG_HZ_1000=y
+CONFIG_MIPS32_O32=y
+CONFIG_MIPS32_N32=y
+CONFIG_PM=y
+CONFIG_MODULES=y
+CONFIG_MODULE_UNLOAD=y
+CONFIG_MODULE_SRCVERSION_ALL=y
+CONFIG_PARTITION_ADVANCED=y
+CONFIG_SGI_PARTITION=y
+CONFIG_DEFAULT_MMAP_MIN_ADDR=65536
+CONFIG_NET=y
+CONFIG_PACKET=y
+CONFIG_UNIX=y
+CONFIG_XFRM_USER=m
+CONFIG_XFRM_STATISTICS=y
+CONFIG_NET_KEY=y
+CONFIG_NET_KEY_MIGRATE=y
+CONFIG_INET=y
+CONFIG_IP_MULTICAST=y
+CONFIG_IP_PNP=y
+CONFIG_TCP_MD5SIG=y
+CONFIG_IPV6_ROUTER_PREF=y
+CONFIG_IPV6_ROUTE_INFO=y
+CONFIG_IPV6_OPTIMISTIC_DAD=y
+CONFIG_INET6_AH=m
+CONFIG_INET6_ESP=m
+CONFIG_INET6_IPCOMP=m
+CONFIG_IPV6_MIP6=m
+CONFIG_IPV6_SIT=m
+CONFIG_IPV6_SIT_6RD=y
+CONFIG_IPV6_TUNNEL=m
+CONFIG_IPV6_MULTIPLE_TABLES=y
+CONFIG_IPV6_SUBTREES=y
+CONFIG_IPV6_MROUTE=y
+CONFIG_IPV6_PIMSM_V2=y
+CONFIG_NETWORK_SECMARK=y
+CONFIG_NET_SCHED=y
+CONFIG_NET_SCH_HTB=m
+CONFIG_NET_SCH_HFSC=m
+CONFIG_NET_SCH_PRIO=m
+CONFIG_NET_SCH_MULTIQ=y
+CONFIG_NET_SCH_RED=m
+CONFIG_NET_SCH_SFQ=m
+CONFIG_NET_SCH_TEQL=m
+CONFIG_NET_SCH_TBF=m
+CONFIG_NET_SCH_GRED=m
+CONFIG_NET_SCH_NETEM=m
+CONFIG_NET_SCH_INGRESS=m
+CONFIG_NET_CLS_BASIC=m
+CONFIG_NET_CLS_ROUTE4=m
+CONFIG_NET_CLS_FW=m
+CONFIG_NET_CLS_U32=m
+CONFIG_CLS_U32_MARK=y
+CONFIG_NET_CLS_FLOW=m
+CONFIG_NET_CLS_CGROUP=y
+CONFIG_NET_CLS_ACT=y
+CONFIG_NET_ACT_POLICE=y
+CONFIG_NET_ACT_GACT=m
+CONFIG_GACT_PROB=y
+CONFIG_NET_ACT_MIRRED=m
+CONFIG_NET_ACT_NAT=m
+CONFIG_NET_ACT_PEDIT=m
+CONFIG_NET_ACT_SKBEDIT=m
+# CONFIG_VGA_ARB is not set
+CONFIG_BLK_DEV_LOOP=y
+CONFIG_CDROM_PKTCDVD=m
+CONFIG_ATA_OVER_ETH=m
+CONFIG_SCSI=y
+CONFIG_BLK_DEV_SD=y
+CONFIG_CHR_DEV_ST=y
+CONFIG_BLK_DEV_SR=m
+CONFIG_CHR_DEV_SG=m
+CONFIG_CHR_DEV_SCH=m
+CONFIG_SCSI_CONSTANTS=y
+CONFIG_SCSI_LOGGING=y
+CONFIG_SCSI_SCAN_ASYNC=y
+CONFIG_SCSI_SPI_ATTRS=y
+CONFIG_SCSI_FC_ATTRS=y
+CONFIG_LIBFC=m
+CONFIG_SCSI_QLOGIC_1280=y
+CONFIG_SCSI_BFA_FC=m
+CONFIG_SCSI_DH=y
+CONFIG_SCSI_DH_RDAC=m
+CONFIG_SCSI_DH_HP_SW=m
+CONFIG_SCSI_DH_EMC=m
+CONFIG_SCSI_DH_ALUA=m
+CONFIG_MD=y
+CONFIG_BLK_DEV_MD=y
+CONFIG_MD_RAID0=y
+CONFIG_MD_RAID1=y
+CONFIG_MD_RAID10=m
+CONFIG_MD_RAID456=y
+CONFIG_BLK_DEV_DM=m
+CONFIG_DM_CRYPT=m
+CONFIG_DM_SNAPSHOT=m
+CONFIG_DM_MIRROR=m
+CONFIG_DM_LOG_USERSPACE=m
+CONFIG_DM_ZERO=m
+CONFIG_DM_MULTIPATH=m
+CONFIG_DM_MULTIPATH_QL=m
+CONFIG_DM_MULTIPATH_ST=m
+CONFIG_DM_UEVENT=y
+CONFIG_NETDEVICES=y
+CONFIG_SGI_IOC3_ETH=y
+CONFIG_INPUT_SPARSEKMAP=y
+CONFIG_INPUT_MATRIXKMAP=y
+CONFIG_INPUT_EVDEV=y
+CONFIG_SERIO_SGI_IOC3=y
+CONFIG_SERIO_RAW=m
+CONFIG_SERIO_ALTERA_PS2=m
+# CONFIG_VT is not set
+CONFIG_SERIAL_8250=y
+CONFIG_SERIAL_8250_CONSOLE=y
+CONFIG_SERIAL_8250_MANY_PORTS=y
+CONFIG_SERIAL_8250_IOC3=y
+CONFIG_NOZOMI=m
+CONFIG_HW_RANDOM_TIMERIOMEM=m
+# CONFIG_PTP_1588_CLOCK is not set
+# CONFIG_HWMON is not set
+CONFIG_THERMAL=y
+CONFIG_SGI_MFD_IOC3=y
+CONFIG_RTC_CLASS=y
+CONFIG_RTC_DRV_M48T35=y
+CONFIG_UIO=y
+CONFIG_UIO_AEC=m
+CONFIG_UIO_SERCOS3=m
+CONFIG_UIO_PCI_GENERIC=m
+CONFIG_EXT2_FS=y
+CONFIG_EXT2_FS_XATTR=y
+CONFIG_EXT2_FS_POSIX_ACL=y
+CONFIG_EXT2_FS_SECURITY=y
+CONFIG_EXT3_FS=y
+CONFIG_EXT3_FS_POSIX_ACL=y
+CONFIG_EXT3_FS_SECURITY=y
+CONFIG_XFS_FS=m
+CONFIG_XFS_QUOTA=y
+CONFIG_XFS_POSIX_ACL=y
+CONFIG_BTRFS_FS=m
+CONFIG_BTRFS_FS_POSIX_ACL=y
+CONFIG_QUOTA_NETLINK_INTERFACE=y
+CONFIG_FUSE_FS=m
+CONFIG_CUSE=m
+CONFIG_PROC_KCORE=y
+CONFIG_TMPFS=y
+CONFIG_TMPFS_POSIX_ACL=y
+CONFIG_SQUASHFS=m
+CONFIG_OMFS_FS=m
+CONFIG_NFS_FS=y
+CONFIG_SECURITYFS=y
+CONFIG_CRYPTO_CRYPTD=m
+CONFIG_CRYPTO_BLOWFISH=m
+CONFIG_CRYPTO_CAMELLIA=m
+CONFIG_CRYPTO_CAST5=m
+CONFIG_CRYPTO_CAST6=m
+CONFIG_CRYPTO_FCRYPT=m
+CONFIG_CRYPTO_SERPENT=m
+CONFIG_CRYPTO_TWOFISH=m
+CONFIG_CRYPTO_CTS=m
+CONFIG_CRYPTO_LRW=m
+CONFIG_CRYPTO_PCBC=m
+CONFIG_CRYPTO_XTS=m
+CONFIG_CRYPTO_HMAC=y
+CONFIG_CRYPTO_MD4=m
+CONFIG_CRYPTO_RMD160=m
+CONFIG_CRYPTO_VMAC=m
+CONFIG_CRYPTO_WP512=m
+CONFIG_CRYPTO_XCBC=m
+CONFIG_CRYPTO_LZO=m
+CONFIG_CRC_T10DIF=m

arch/mips/configs/lemote2f_defconfig

@@ -12,15 +12,14 @@ CONFIG_LOG_BUF_SHIFT=15
 CONFIG_BLK_DEV_INITRD=y
 CONFIG_EXPERT=y
 CONFIG_PROFILING=y
+CONFIG_KEXEC=y
 CONFIG_MACH_LOONGSON2EF=y
 CONFIG_LEMOTE_MACH2F=y
-CONFIG_KEXEC=y
-# CONFIG_SECCOMP is not set
-CONFIG_PCI=y
 CONFIG_MIPS32_O32=y
 CONFIG_MIPS32_N32=y
 CONFIG_HIBERNATION=y
 CONFIG_PM_STD_PARTITION="/dev/hda3"
+# CONFIG_SECCOMP is not set
 CONFIG_MODULES=y
 CONFIG_MODULE_UNLOAD=y
 CONFIG_MODVERSIONS=y
@@ -68,10 +67,10 @@ CONFIG_BT_HIDP=m
 CONFIG_BT_HCIBTUSB=m
 CONFIG_BT_HCIBFUSB=m
 CONFIG_BT_HCIVHCI=m
-CONFIG_CFG80211=m
-CONFIG_MAC80211=m
+CONFIG_CFG80211=y
+CONFIG_MAC80211=y
 CONFIG_MAC80211_LEDS=y
-CONFIG_RFKILL=m
+CONFIG_RFKILL=y
 CONFIG_RFKILL_INPUT=y
 CONFIG_BLK_DEV_LOOP=y
 CONFIG_BLK_DEV_RAM=y
@@ -83,13 +82,10 @@ CONFIG_ATA=y
 CONFIG_PATA_AMD=y
 CONFIG_MD=y
 CONFIG_BLK_DEV_MD=m
-CONFIG_MD_LINEAR=m
 CONFIG_MD_RAID0=m
 CONFIG_MD_RAID1=m
 CONFIG_MD_RAID10=m
 CONFIG_MD_RAID456=m
-CONFIG_MD_MULTIPATH=m
-CONFIG_MD_FAULTY=m
 CONFIG_BLK_DEV_DM=m
 CONFIG_DM_DEBUG=y
 CONFIG_DM_CRYPT=m
@@ -112,6 +108,10 @@ CONFIG_8139TOO=y
 CONFIG_R8169=y
 CONFIG_USB_USBNET=m
 CONFIG_USB_NET_CDC_EEM=m
+CONFIG_RTL8180=m
+CONFIG_RTL8187=y
+CONFIG_RTL_CARDS=m
+CONFIG_RTL8XXXU=m
 CONFIG_INPUT_EVDEV=y
 # CONFIG_MOUSE_PS2_ALPS is not set
 # CONFIG_MOUSE_PS2_LOGIPS2PP is not set
@@ -119,27 +119,27 @@ CONFIG_INPUT_EVDEV=y
 CONFIG_MOUSE_APPLETOUCH=m
 # CONFIG_SERIO_SERPORT is not set
 CONFIG_LEGACY_PTY_COUNT=16
-CONFIG_SERIAL_NONSTANDARD=y
 CONFIG_SERIAL_8250=m
 # CONFIG_SERIAL_8250_PCI is not set
 CONFIG_SERIAL_8250_NR_UARTS=16
 CONFIG_SERIAL_8250_EXTENDED=y
 CONFIG_SERIAL_8250_MANY_PORTS=y
 CONFIG_SERIAL_8250_FOURPORT=y
+CONFIG_SERIAL_NONSTANDARD=y
 CONFIG_HW_RANDOM=y
 CONFIG_GPIO_LOONGSON=y
 CONFIG_THERMAL=y
 CONFIG_MEDIA_SUPPORT=m
 CONFIG_FB=y
-CONFIG_FIRMWARE_EDID=y
-CONFIG_FB_MODE_HELPERS=y
-CONFIG_FB_TILEBLITTING=y
 CONFIG_FB_SIS=y
 CONFIG_FB_SIS_300=y
 CONFIG_FB_SIS_315=y
-# CONFIG_LCD_CLASS_DEVICE is not set
+CONFIG_FB_SIMPLE=y
+CONFIG_FB_SM712=y
+CONFIG_FIRMWARE_EDID=y
+CONFIG_FB_MODE_HELPERS=y
+CONFIG_FB_TILEBLITTING=y
 CONFIG_BACKLIGHT_CLASS_DEVICE=y
-# CONFIG_VGA_CONSOLE is not set
 CONFIG_FRAMEBUFFER_CONSOLE=y
 CONFIG_FRAMEBUFFER_CONSOLE_ROTATION=y
 CONFIG_LOGO=y
@@ -238,7 +238,6 @@ CONFIG_BTRFS_FS=m
 CONFIG_QUOTA=y
 CONFIG_QFMT_V2=m
 CONFIG_AUTOFS_FS=m
-CONFIG_NETFS_SUPPORT=m
 CONFIG_FSCACHE=y
 CONFIG_CACHEFILES=m
 CONFIG_ISO9660_FS=m
@@ -247,7 +246,6 @@ CONFIG_ZISOFS=y
 CONFIG_MSDOS_FS=m
 CONFIG_VFAT_FS=m
 CONFIG_NTFS_FS=m
-CONFIG_NTFS_RW=y
 CONFIG_PROC_KCORE=y
 CONFIG_TMPFS=y
 CONFIG_CRAMFS=m
@@ -299,29 +297,23 @@ CONFIG_NLS_KOI8_R=m
 CONFIG_NLS_KOI8_U=m
 CONFIG_NLS_UTF8=y
 CONFIG_CRYPTO_CRYPTD=m
-CONFIG_CRYPTO_AUTHENC=m
 CONFIG_CRYPTO_TEST=m
-CONFIG_CRYPTO_LRW=m
-CONFIG_CRYPTO_PCBC=m
-CONFIG_CRYPTO_XTS=m
-CONFIG_CRYPTO_XCBC=m
-CONFIG_CRYPTO_MICHAEL_MIC=m
-CONFIG_CRYPTO_RMD160=m
-CONFIG_CRYPTO_SHA1=m
-CONFIG_CRYPTO_WP512=m
-CONFIG_CRYPTO_ANUBIS=m
 CONFIG_CRYPTO_BLOWFISH=m
 CONFIG_CRYPTO_CAMELLIA=m
 CONFIG_CRYPTO_CAST5=m
 CONFIG_CRYPTO_CAST6=m
 CONFIG_CRYPTO_FCRYPT=m
-CONFIG_CRYPTO_KHAZAD=m
-CONFIG_CRYPTO_SEED=m
 CONFIG_CRYPTO_SERPENT=m
-CONFIG_CRYPTO_TEA=m
 CONFIG_CRYPTO_TWOFISH=m
+CONFIG_CRYPTO_LRW=m
+CONFIG_CRYPTO_PCBC=m
+CONFIG_CRYPTO_XTS=m
+CONFIG_CRYPTO_MICHAEL_MIC=m
+CONFIG_CRYPTO_RMD160=m
+CONFIG_CRYPTO_SHA1=m
+CONFIG_CRYPTO_WP512=m
+CONFIG_CRYPTO_XCBC=m
 CONFIG_CRYPTO_DEFLATE=m
-CONFIG_CRYPTO_LZO=m
 CONFIG_FONTS=y
 CONFIG_FONT_8x8=y
 CONFIG_FONT_6x11=y

arch/mips/crypto/poly1305-glue.c

@@ -186,6 +186,7 @@ static void __exit mips_poly1305_mod_exit(void)
 module_init(mips_poly1305_mod_init);
 module_exit(mips_poly1305_mod_exit);
 
+MODULE_DESCRIPTION("Poly1305 transform (MIPS accelerated");
 MODULE_LICENSE("GPL v2");
 MODULE_ALIAS_CRYPTO("poly1305");
 MODULE_ALIAS_CRYPTO("poly1305-mips");

arch/mips/generic/Makefile

@@ -13,3 +13,4 @@ obj-$(CONFIG_LEGACY_BOARD_SEAD3)	+= board-sead3.o
 obj-$(CONFIG_LEGACY_BOARD_OCELOT)	+= board-ocelot.o
 obj-$(CONFIG_MACH_INGENIC)			+= board-ingenic.o
 obj-$(CONFIG_VIRT_BOARD_RANCHU)		+= board-ranchu.o
+obj-$(CONFIG_MACH_REALTEK_RTL)		+= board-realtek.o

arch/mips/generic/board-realtek.c

+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2024 Allied Telesis
+ */
+
+#include <linux/errno.h>
+#include <linux/libfdt.h>
+#include <linux/printk.h>
+#include <linux/types.h>
+
+#include <asm/fw/fw.h>
+#include <asm/machine.h>
+
+static __init int realtek_add_initrd(void *fdt)
+{
+	int node, err;
+	u32 start, size;
+
+	node = fdt_path_offset(fdt, "/chosen");
+	if (node < 0) {
+		pr_err("/chosen node not found\n");
+		return -ENOENT;
+	}
+
+	start = fw_getenvl("initrd_start");
+	size = fw_getenvl("initrd_size");
+
+	if (start == 0 && size == 0)
+		return 0;
+
+	pr_info("Adding initrd info from environment\n");
+
+	err = fdt_setprop_u32(fdt, node, "linux,initrd-start", start);
+	if (err) {
+		pr_err("unable to set initrd-start: %d\n", err);
+		return err;
+	}
+
+	err = fdt_setprop_u32(fdt, node, "linux,initrd-end", start + size);
+	if (err) {
+		pr_err("unable to set initrd-end: %d\n", err);
+		return err;
+	}
+
+	return 0;
+}
+
+static const struct mips_fdt_fixup realtek_fdt_fixups[] __initconst = {
+	{ realtek_add_initrd, "add initrd" },
+	{},
+};
+
+static __init const void *realtek_fixup_fdt(const void *fdt, const void *match_data)
+{
+	static unsigned char fdt_buf[16 << 10] __initdata;
+	int err;
+
+	if (fdt_check_header(fdt))
+		panic("Corrupt DT");
+
+	fw_init_cmdline();
+
+	err = apply_mips_fdt_fixups(fdt_buf, sizeof(fdt_buf), fdt, realtek_fdt_fixups);
+	if (err)
+		panic("Unable to fixup FDT: %d", err);
+
+	return fdt_buf;
+
+}
+
+static const struct of_device_id realtek_of_match[] __initconst = {
+	{ .compatible = "realtek,rtl9302-soc" },
+	{}
+};
+
+MIPS_MACHINE(realtek) = {
+	.matches = realtek_of_match,
+	.fixup_fdt = realtek_fixup_fdt,
+};

arch/mips/include/asm/bmips.h

@@ -81,6 +81,7 @@ extern char bmips_smp_movevec[];
 extern char bmips_smp_int_vec[];
 extern char bmips_smp_int_vec_end[];
 
+extern void __iomem *bmips_cbr_addr;
 extern int bmips_smp_enabled;
 extern int bmips_cpu_offset;
 extern cpumask_t bmips_booted_mask;

arch/mips/include/asm/fpu.h

@@ -129,6 +129,18 @@ static inline int __own_fpu(void)
 	if (ret)
 		return ret;
 
+	if (current->thread.fpu.fcr31 & FPU_CSR_NAN2008) {
+		if (!cpu_has_nan_2008) {
+			ret = SIGFPE;
+			goto failed;
+		}
+	} else {
+		if (!cpu_has_nan_legacy) {
+			ret = SIGFPE;
+			goto failed;
+		}
+	}
+
 	KSTK_STATUS(current) |= ST0_CU1;
 	if (mode == FPU_64BIT || mode == FPU_HYBRID)
 		KSTK_STATUS(current) |= ST0_FR;
@@ -137,6 +149,9 @@ static inline int __own_fpu(void)
 
 	set_thread_flag(TIF_USEDFPU);
 	return 0;
+failed:
+	__disable_fpu();
+	return ret;
 }
 
 static inline int own_fpu_inatomic(int restore)

arch/mips/include/asm/mach-loongson64/boot_param.h

@@ -42,12 +42,14 @@ enum loongson_cpu_type {
 	Legacy_1B = 0x5,
 	Legacy_2G = 0x6,
 	Legacy_2H = 0x7,
+	Legacy_2K = 0x8,
 	Loongson_1A = 0x100,
 	Loongson_1B = 0x101,
 	Loongson_2E = 0x200,
 	Loongson_2F = 0x201,
 	Loongson_2G = 0x202,
 	Loongson_2H = 0x203,
+	Loongson_2K = 0x204,
 	Loongson_3A = 0x300,
 	Loongson_3B = 0x301
 };

arch/mips/include/asm/mips-cps.h

@@ -8,6 +8,7 @@
 #define __MIPS_ASM_MIPS_CPS_H__
 
 #include <linux/bitfield.h>
+#include <linux/cpumask.h>
 #include <linux/io.h>
 #include <linux/types.h>
 
@@ -228,4 +229,42 @@ static inline unsigned int mips_cps_numvps(unsigned int cluster, unsigned int co
 	return FIELD_GET(CM_GCR_Cx_CONFIG_PVPE, cfg + 1);
 }
 
+/**
+ * mips_cps_multicluster_cpus() - Detect whether CPUs are in multiple clusters
+ *
+ * Determine whether the system includes CPUs in multiple clusters - ie.
+ * whether we can treat the system as single or multi-cluster as far as CPUs
+ * are concerned. Note that this is slightly different to simply checking
+ * whether multiple clusters are present - it is possible for there to be
+ * clusters which contain no CPUs, which this function will effectively ignore.
+ *
+ * Returns true if CPUs are spread across multiple clusters, else false.
+ */
+static inline bool mips_cps_multicluster_cpus(void)
+{
+	unsigned int first_cl, last_cl;
+
+	/*
+	 * CPUs are numbered sequentially by cluster - ie. CPUs 0..X will be in
+	 * cluster 0, CPUs X+1..Y in cluster 1, CPUs Y+1..Z in cluster 2 etc.
+	 *
+	 * Thus we can detect multiple clusters trivially by checking whether
+	 * the first & last CPUs belong to the same cluster.
+	 */
+	first_cl = cpu_cluster(&boot_cpu_data);
+	last_cl = cpu_cluster(&cpu_data[nr_cpu_ids - 1]);
+	return first_cl != last_cl;
+}
+
+/**
+ * mips_cps_first_online_in_cluster() - Detect if CPU is first online in cluster
+ *
+ * Determine whether the local CPU is the first to be brought online in its
+ * cluster - that is, whether there are any other online CPUs in the local
+ * cluster.
+ *
+ * Returns true if this CPU is first online, else false.
+ */
+extern unsigned int mips_cps_first_online_in_cluster(void);
+
 #endif /* __MIPS_ASM_MIPS_CPS_H__ */

arch/mips/include/asm/mips-gic.h

@@ -28,11 +28,13 @@ extern void __iomem *mips_gic_base;
 
 /* For read-only shared registers */
 #define GIC_ACCESSOR_RO(sz, off, name)					\
-	CPS_ACCESSOR_RO(gic, sz, MIPS_GIC_SHARED_OFS + off, name)
+	CPS_ACCESSOR_RO(gic, sz, MIPS_GIC_SHARED_OFS + off, name)	\
+	CPS_ACCESSOR_RO(gic, sz, MIPS_GIC_REDIR_OFS + off, redir_##name)
 
 /* For read-write shared registers */
 #define GIC_ACCESSOR_RW(sz, off, name)					\
-	CPS_ACCESSOR_RW(gic, sz, MIPS_GIC_SHARED_OFS + off, name)
+	CPS_ACCESSOR_RW(gic, sz, MIPS_GIC_SHARED_OFS + off, name)	\
+	CPS_ACCESSOR_RW(gic, sz, MIPS_GIC_REDIR_OFS + off, redir_##name)
 
 /* For read-only local registers */
 #define GIC_VX_ACCESSOR_RO(sz, off, name)				\
@@ -45,7 +47,7 @@ extern void __iomem *mips_gic_base;
 	CPS_ACCESSOR_RW(gic, sz, MIPS_GIC_REDIR_OFS + off, vo_##name)
 
 /* For read-only shared per-interrupt registers */
-#define GIC_ACCESSOR_RO_INTR_REG(sz, off, stride, name)			\
+#define _GIC_ACCESSOR_RO_INTR_REG(sz, off, stride, name)		\
 static inline void __iomem *addr_gic_##name(unsigned int intr)		\
 {									\
 	return mips_gic_base + (off) + (intr * (stride));		\
@@ -58,8 +60,8 @@ static inline unsigned int read_gic_##name(unsigned int intr)		\
 }
 
 /* For read-write shared per-interrupt registers */
-#define GIC_ACCESSOR_RW_INTR_REG(sz, off, stride, name)			\
-	GIC_ACCESSOR_RO_INTR_REG(sz, off, stride, name)			\
+#define _GIC_ACCESSOR_RW_INTR_REG(sz, off, stride, name)		\
+	_GIC_ACCESSOR_RO_INTR_REG(sz, off, stride, name)		\
 									\
 static inline void write_gic_##name(unsigned int intr,			\
 				    unsigned int val)			\
@@ -68,22 +70,30 @@ static inline void write_gic_##name(unsigned int intr,			\
 	__raw_writel(val, addr_gic_##name(intr));			\
 }
 
+#define GIC_ACCESSOR_RO_INTR_REG(sz, off, stride, name)			\
+	_GIC_ACCESSOR_RO_INTR_REG(sz, off, stride, name)		\
+	_GIC_ACCESSOR_RO_INTR_REG(sz, MIPS_GIC_REDIR_OFS + off, stride, redir_##name)
+
+#define GIC_ACCESSOR_RW_INTR_REG(sz, off, stride, name)			\
+	_GIC_ACCESSOR_RW_INTR_REG(sz, off, stride, name)		\
+	_GIC_ACCESSOR_RW_INTR_REG(sz, MIPS_GIC_REDIR_OFS + off, stride, redir_##name)
+
 /* For read-only local per-interrupt registers */
 #define GIC_VX_ACCESSOR_RO_INTR_REG(sz, off, stride, name)		\
-	GIC_ACCESSOR_RO_INTR_REG(sz, MIPS_GIC_LOCAL_OFS + off,		\
+	_GIC_ACCESSOR_RO_INTR_REG(sz, MIPS_GIC_LOCAL_OFS + off,		\
 				 stride, vl_##name)			\
-	GIC_ACCESSOR_RO_INTR_REG(sz, MIPS_GIC_REDIR_OFS + off,		\
+	_GIC_ACCESSOR_RO_INTR_REG(sz, MIPS_GIC_REDIR_OFS + off,		\
 				 stride, vo_##name)
 
 /* For read-write local per-interrupt registers */
 #define GIC_VX_ACCESSOR_RW_INTR_REG(sz, off, stride, name)		\
-	GIC_ACCESSOR_RW_INTR_REG(sz, MIPS_GIC_LOCAL_OFS + off,		\
+	_GIC_ACCESSOR_RW_INTR_REG(sz, MIPS_GIC_LOCAL_OFS + off,		\
 				 stride, vl_##name)			\
-	GIC_ACCESSOR_RW_INTR_REG(sz, MIPS_GIC_REDIR_OFS + off,		\
+	_GIC_ACCESSOR_RW_INTR_REG(sz, MIPS_GIC_REDIR_OFS + off,		\
 				 stride, vo_##name)
 
 /* For read-only shared bit-per-interrupt registers */
-#define GIC_ACCESSOR_RO_INTR_BIT(off, name)				\
+#define _GIC_ACCESSOR_RO_INTR_BIT(off, name)				\
 static inline void __iomem *addr_gic_##name(void)			\
 {									\
 	return mips_gic_base + (off);					\
@@ -106,8 +116,8 @@ static inline unsigned int read_gic_##name(unsigned int intr)		\
 }
 
 /* For read-write shared bit-per-interrupt registers */
-#define GIC_ACCESSOR_RW_INTR_BIT(off, name)				\
-	GIC_ACCESSOR_RO_INTR_BIT(off, name)				\
+#define _GIC_ACCESSOR_RW_INTR_BIT(off, name)				\
+	_GIC_ACCESSOR_RO_INTR_BIT(off, name)				\
 									\
 static inline void write_gic_##name(unsigned int intr)			\
 {									\
@@ -146,6 +156,14 @@ static inline void change_gic_##name(unsigned int intr,			\
 	}								\
 }
 
+#define GIC_ACCESSOR_RO_INTR_BIT(off, name)				\
+	_GIC_ACCESSOR_RO_INTR_BIT(off, name)				\
+	_GIC_ACCESSOR_RO_INTR_BIT(MIPS_GIC_REDIR_OFS + off, redir_##name)
+
+#define GIC_ACCESSOR_RW_INTR_BIT(off, name)				\
+	_GIC_ACCESSOR_RW_INTR_BIT(off, name)				\
+	_GIC_ACCESSOR_RW_INTR_BIT(MIPS_GIC_REDIR_OFS + off, redir_##name)
+
 /* For read-only local bit-per-interrupt registers */
 #define GIC_VX_ACCESSOR_RO_INTR_BIT(sz, off, name)			\
 	GIC_ACCESSOR_RO_INTR_BIT(sz, MIPS_GIC_LOCAL_OFS + off,		\
@@ -155,10 +173,10 @@ static inline void change_gic_##name(unsigned int intr,			\
 
 /* For read-write local bit-per-interrupt registers */
 #define GIC_VX_ACCESSOR_RW_INTR_BIT(sz, off, name)			\
-	GIC_ACCESSOR_RW_INTR_BIT(sz, MIPS_GIC_LOCAL_OFS + off,		\
-				 vl_##name)				\
-	GIC_ACCESSOR_RW_INTR_BIT(sz, MIPS_GIC_REDIR_OFS + off,		\
-				 vo_##name)
+	_GIC_ACCESSOR_RW_INTR_BIT(sz, MIPS_GIC_LOCAL_OFS + off,		\
+				  vl_##name)				\
+	_GIC_ACCESSOR_RW_INTR_BIT(sz, MIPS_GIC_REDIR_OFS + off,		\
+				  vo_##name)
 
 /* GIC_SH_CONFIG - Information about the GIC configuration */
 GIC_ACCESSOR_RW(32, 0x000, config)

arch/mips/include/asm/pm.h

@@ -17,7 +17,7 @@
 
 /* Save CPU state to stack for suspend to RAM */
 .macro SUSPEND_SAVE_REGS
-	subu	sp, PT_SIZE
+	PTR_SUBU	sp, PT_SIZE
 	/* Call preserved GPRs */
 	LONG_S	$16, PT_R16(sp)
 	LONG_S	$17, PT_R17(sp)
@@ -56,13 +56,13 @@
 	LONG_L	$31, PT_R31(sp)
 	/* Pop and return */
 	jr	ra
-	 addiu	sp, PT_SIZE
+	 PTR_ADDIU	sp, PT_SIZE
 	.set	pop
 .endm
 
 /* Get address of static suspend state into t1 */
 .macro LA_STATIC_SUSPEND
-	la	t1, mips_static_suspend_state
+	PTR_LA	t1, mips_static_suspend_state
 .endm
 
 /* Save important CPU state for early restoration to global data */
@@ -72,11 +72,11 @@
 	 * Segment configuration is saved in global data where it can be easily
 	 * reloaded without depending on the segment configuration.
 	 */
-	mfc0	k0, CP0_PAGEMASK, 2	/* SegCtl0 */
+	mfc0	k0, CP0_SEGCTL0
 	LONG_S	k0, SSS_SEGCTL0(t1)
-	mfc0	k0, CP0_PAGEMASK, 3	/* SegCtl1 */
+	mfc0	k0, CP0_SEGCTL1
 	LONG_S	k0, SSS_SEGCTL1(t1)
-	mfc0	k0, CP0_PAGEMASK, 4	/* SegCtl2 */
+	mfc0	k0, CP0_SEGCTL2
 	LONG_S	k0, SSS_SEGCTL2(t1)
 #endif
 	/* save stack pointer (pointing to GPRs) */
@@ -92,11 +92,11 @@
 	 * segments.
 	 */
 	LONG_L	k0, SSS_SEGCTL0(t1)
-	mtc0	k0, CP0_PAGEMASK, 2	/* SegCtl0 */
+	mtc0	k0, CP0_SEGCTL0
 	LONG_L	k0, SSS_SEGCTL1(t1)
-	mtc0	k0, CP0_PAGEMASK, 3	/* SegCtl1 */
+	mtc0	k0, CP0_SEGCTL1
 	LONG_L	k0, SSS_SEGCTL2(t1)
-	mtc0	k0, CP0_PAGEMASK, 4	/* SegCtl2 */
+	mtc0	k0, CP0_SEGCTL2
 	tlbw_use_hazard
 #endif
 	/* restore stack pointer (pointing to GPRs) */
@@ -105,10 +105,10 @@
 
 /* flush caches to make sure context has reached memory */
 .macro SUSPEND_CACHE_FLUSH
-	.extern	__wback_cache_all
+	.extern	__flush_cache_all
 	.set	push
 	.set	noreorder
-	la	t1, __wback_cache_all
+	PTR_LA	t1, __flush_cache_all
 	LONG_L	t0, 0(t1)
 	jalr	t0
 	 nop

arch/mips/include/asm/r4k-timer.h

@@ -12,15 +12,10 @@
 
 #ifdef CONFIG_SYNC_R4K
 
-extern void synchronise_count_master(int cpu);
 extern void synchronise_count_slave(int cpu);
 
 #else
 
-static inline void synchronise_count_master(int cpu)
-{
-}
-
 static inline void synchronise_count_slave(int cpu)
 {
 }

arch/mips/include/asm/sgi/ip22.h

@@ -76,5 +76,8 @@
 
 extern unsigned short ip22_eeprom_read(unsigned int *ctrl, int reg);
 extern unsigned short ip22_nvram_read(int reg);
+extern void ip22_be_interrupt(int irq);
+extern void ip22_be_init(void) __init;
+extern void indy_8254timer_irq(void);
 
 #endif

arch/mips/kernel/csrc-r4k.c

@@ -21,7 +21,9 @@ static struct clocksource clocksource_mips = {
 	.name		= "MIPS",
 	.read		= c0_hpt_read,
 	.mask		= CLOCKSOURCE_MASK(32),
-	.flags		= CLOCK_SOURCE_IS_CONTINUOUS,
+	.flags		= CLOCK_SOURCE_IS_CONTINUOUS |
+				  CLOCK_SOURCE_MUST_VERIFY |
+				  CLOCK_SOURCE_VERIFY_PERCPU,
 };
 
 static u64 __maybe_unused notrace r4k_read_sched_clock(void)
@@ -66,6 +68,18 @@ static bool rdhwr_count_usable(void)
 	return false;
 }
 
+static inline __init bool count_can_be_sched_clock(void)
+{
+	if (IS_ENABLED(CONFIG_CPU_FREQ))
+		return false;
+
+	if (num_possible_cpus() > 1 &&
+			!IS_ENABLED(CONFIG_HAVE_UNSTABLE_SCHED_CLOCK))
+		return false;
+
+	return true;
+}
+
 #ifdef CONFIG_CPU_FREQ
 
 static bool __read_mostly r4k_clock_unstable;
@@ -111,7 +125,8 @@ int __init init_r4k_clocksource(void)
 		return -ENXIO;
 
 	/* Calculate a somewhat reasonable rating value */
-	clocksource_mips.rating = 200 + mips_hpt_frequency / 10000000;
+	clocksource_mips.rating = 200;
+	clocksource_mips.rating += clamp(mips_hpt_frequency / 10000000, 0, 99);
 
 	/*
 	 * R2 onwards makes the count accessible to user mode so it can be used
@@ -122,9 +137,8 @@ int __init init_r4k_clocksource(void)
 
 	clocksource_register_hz(&clocksource_mips, mips_hpt_frequency);
 
-#ifndef CONFIG_CPU_FREQ
-	sched_clock_register(r4k_read_sched_clock, 32, mips_hpt_frequency);
-#endif
+	if (count_can_be_sched_clock())
+		sched_clock_register(r4k_read_sched_clock, 32, mips_hpt_frequency);
 
 	return 0;
 }

arch/mips/kernel/elf.c

@@ -318,6 +318,10 @@ void mips_set_personality_nan(struct arch_elf_state *state)
 	t->thread.fpu.fcr31 = c->fpu_csr31;
 	switch (state->nan_2008) {
 	case 0:
+		if (!(c->fpu_msk31 & FPU_CSR_NAN2008))
+			t->thread.fpu.fcr31 &= ~FPU_CSR_NAN2008;
+		if (!(c->fpu_msk31 & FPU_CSR_ABS2008))
+			t->thread.fpu.fcr31 &= ~FPU_CSR_ABS2008;
 		break;
 	case 1:
 		if (!(c->fpu_msk31 & FPU_CSR_NAN2008))

arch/mips/kernel/fpu-probe.c

@@ -144,7 +144,7 @@ static void cpu_set_fpu_2008(struct cpuinfo_mips *c)
  * IEEE 754 conformance mode to use.  Affects the NaN encoding and the
  * ABS.fmt/NEG.fmt execution mode.
  */
-static enum { STRICT, LEGACY, STD2008, RELAXED } ieee754 = STRICT;
+static enum { STRICT, EMULATED, LEGACY, STD2008, RELAXED } ieee754 = STRICT;
 
 /*
  * Set the IEEE 754 NaN encodings and the ABS.fmt/NEG.fmt execution modes
@@ -160,6 +160,7 @@ static void cpu_set_nofpu_2008(struct cpuinfo_mips *c)
 
 	switch (ieee754) {
 	case STRICT:
+	case EMULATED:
 		if (c->isa_level & (MIPS_CPU_ISA_M32R1 | MIPS_CPU_ISA_M64R1 |
 				    MIPS_CPU_ISA_M32R2 | MIPS_CPU_ISA_M64R2 |
 				    MIPS_CPU_ISA_M32R5 | MIPS_CPU_ISA_M64R5 |
@@ -204,6 +205,10 @@ static void cpu_set_nan_2008(struct cpuinfo_mips *c)
 		mips_use_nan_legacy = !cpu_has_nan_2008;
 		mips_use_nan_2008 = !!cpu_has_nan_2008;
 		break;
+	case EMULATED:
+		/* Pretend ABS2008/NAN2008 options are dynamic */
+		c->fpu_msk31 &= ~(FPU_CSR_NAN2008 | FPU_CSR_ABS2008);
+		fallthrough;
 	case RELAXED:
 		mips_use_nan_legacy = true;
 		mips_use_nan_2008 = true;
@@ -226,6 +231,8 @@ static int __init ieee754_setup(char *s)
 		return -1;
 	else if (!strcmp(s, "strict"))
 		ieee754 = STRICT;
+	else if (!strcmp(s, "emulated"))
+		ieee754 = EMULATED;
 	else if (!strcmp(s, "legacy"))
 		ieee754 = LEGACY;
 	else if (!strcmp(s, "2008"))

arch/mips/kernel/mips-cm.c

@@ -512,3 +512,40 @@ void mips_cm_error_report(void)
 	/* reprime cause register */
 	write_gcr_error_cause(cm_error);
 }
+
+unsigned int mips_cps_first_online_in_cluster(void)
+{
+	unsigned int local_cl;
+	int i;
+
+	local_cl = cpu_cluster(&current_cpu_data);
+
+	/*
+	 * We rely upon knowledge that CPUs are numbered sequentially by
+	 * cluster - ie. CPUs 0..X will be in cluster 0, CPUs X+1..Y in cluster
+	 * 1, CPUs Y+1..Z in cluster 2 etc. This means that CPUs in the same
+	 * cluster will immediately precede or follow one another.
+	 *
+	 * First we scan backwards, until we find an online CPU in the cluster
+	 * or we move on to another cluster.
+	 */
+	for (i = smp_processor_id() - 1; i >= 0; i--) {
+		if (cpu_cluster(&cpu_data[i]) != local_cl)
+			break;
+		if (!cpu_online(i))
+			continue;
+		return false;
+	}
+
+	/* Then do the same for higher numbered CPUs */
+	for (i = smp_processor_id() + 1; i < nr_cpu_ids; i++) {
+		if (cpu_cluster(&cpu_data[i]) != local_cl)
+			break;
+		if (!cpu_online(i))
+			continue;
+		return false;
+	}
+
+	/* We found no online CPUs in the local cluster */
+	return true;
+}

arch/mips/kernel/smp-bmips.c

@@ -518,7 +518,7 @@ static void bmips_set_reset_vec(int cpu, u32 val)
 		info.val = val;
 		bmips_set_reset_vec_remote(&info);
 	} else {
-		void __iomem *cbr = BMIPS_GET_CBR();
+		void __iomem *cbr = bmips_cbr_addr;
 
 		if (cpu == 0)
 			__raw_writel(val, cbr + BMIPS_RELO_VECTOR_CONTROL_0);
@@ -591,7 +591,8 @@ asmlinkage void __weak plat_wired_tlb_setup(void)
 
 void bmips_cpu_setup(void)
 {
-	void __iomem __maybe_unused *cbr = BMIPS_GET_CBR();
+	void __iomem __maybe_unused *cbr = bmips_cbr_addr;
+	u32 __maybe_unused rac_addr;
 	u32 __maybe_unused cfg;
 
 	switch (current_cpu_type()) {
@@ -620,6 +621,23 @@ void bmips_cpu_setup(void)
 		__raw_readl(cbr + BMIPS_RAC_ADDRESS_RANGE);
 		break;
 
+	case CPU_BMIPS4350:
+		rac_addr = BMIPS_RAC_CONFIG_1;
+
+		if (!(read_c0_brcm_cmt_local() & (1 << 31)))
+			rac_addr = BMIPS_RAC_CONFIG;
+
+		/* Enable data RAC */
+		cfg = __raw_readl(cbr + rac_addr);
+		__raw_writel(cfg | 0xf, cbr + rac_addr);
+		__raw_readl(cbr + rac_addr);
+
+		/* Flush stale data out of the readahead cache */
+		cfg = __raw_readl(cbr + BMIPS_RAC_CONFIG);
+		__raw_writel(cfg | 0x100, cbr + BMIPS_RAC_CONFIG);
+		__raw_readl(cbr + BMIPS_RAC_CONFIG);
+		break;
+
 	case CPU_BMIPS4380:
 		/* CBG workaround for early BMIPS4380 CPUs */
 		switch (read_c0_prid()) {

arch/mips/kernel/smp.c

@@ -462,8 +462,6 @@ int __cpu_up(unsigned int cpu, struct task_struct *tidle)
 		return -EIO;
 	}
 
-	synchronise_count_master(cpu);
-
 	/* Wait for CPU to finish startup & mark itself online before return */
 	wait_for_completion(&cpu_running);
 	return 0;

arch/mips/kernel/sync-r4k.c

@@ -2,121 +2,244 @@
 /*
  * Count register synchronisation.
  *
- * All CPUs will have their count registers synchronised to the CPU0 next time
- * value. This can cause a small timewarp for CPU0. All other CPU's should
- * not have done anything significant (but they may have had interrupts
- * enabled briefly - prom_smp_finish() should not be responsible for enabling
- * interrupts...)
+ * Derived from arch/x86/kernel/tsc_sync.c
+ * Copyright (C) 2006, Red Hat, Inc., Ingo Molnar
  */
 
 #include <linux/kernel.h>
 #include <linux/irqflags.h>
 #include <linux/cpumask.h>
+#include <linux/atomic.h>
+#include <linux/nmi.h>
+#include <linux/smp.h>
+#include <linux/spinlock.h>
 
 #include <asm/r4k-timer.h>
-#include <linux/atomic.h>
-#include <asm/barrier.h>
 #include <asm/mipsregs.h>
+#include <asm/time.h>
 
-static unsigned int initcount = 0;
-static atomic_t count_count_start = ATOMIC_INIT(0);
-static atomic_t count_count_stop = ATOMIC_INIT(0);
-
-#define COUNTON 100
-#define NR_LOOPS 3
-
-void synchronise_count_master(int cpu)
-{
-	int i;
-	unsigned long flags;
-
-	pr_info("Synchronize counters for CPU %u: ", cpu);
+#define COUNTON		100
+#define NR_LOOPS	3
+#define LOOP_TIMEOUT	20
 
-	local_irq_save(flags);
+/*
+ * Entry/exit counters that make sure that both CPUs
+ * run the measurement code at once:
+ */
+static atomic_t start_count;
+static atomic_t stop_count;
+static atomic_t test_runs;
 
-	/*
-	 * We loop a few times to get a primed instruction cache,
-	 * then the last pass is more or less synchronised and
-	 * the master and slaves each set their cycle counters to a known
-	 * value all at once. This reduces the chance of having random offsets
-	 * between the processors, and guarantees that the maximum
-	 * delay between the cycle counters is never bigger than
-	 * the latency of information-passing (cachelines) between
-	 * two CPUs.
-	 */
+/*
+ * We use a raw spinlock in this exceptional case, because
+ * we want to have the fastest, inlined, non-debug version
+ * of a critical section, to be able to prove counter time-warps:
+ */
+static arch_spinlock_t sync_lock = __ARCH_SPIN_LOCK_UNLOCKED;
 
-	for (i = 0; i < NR_LOOPS; i++) {
-		/* slaves loop on '!= 2' */
-		while (atomic_read(&count_count_start) != 1)
-			mb();
-		atomic_set(&count_count_stop, 0);
-		smp_wmb();
+static uint32_t last_counter;
+static uint32_t max_warp;
+static int nr_warps;
+static int random_warps;
 
-		/* Let the slave writes its count register */
-		atomic_inc(&count_count_start);
+/*
+ * Counter warp measurement loop running on both CPUs.
+ */
+static uint32_t check_counter_warp(void)
+{
+	uint32_t start, now, prev, end, cur_max_warp = 0;
+	int i, cur_warps = 0;
 
-		/* Count will be initialised to current timer */
-		if (i == 1)
-			initcount = read_c0_count();
+	start = read_c0_count();
+	end = start + (uint32_t) mips_hpt_frequency / 1000 * LOOP_TIMEOUT;
 
+	for (i = 0; ; i++) {
 		/*
-		 * Everyone initialises count in the last loop:
+		 * We take the global lock, measure counter, save the
+		 * previous counter that was measured (possibly on
+		 * another CPU) and update the previous counter timestamp.
 		 */
-		if (i == NR_LOOPS-1)
-			write_c0_count(initcount);
+		arch_spin_lock(&sync_lock);
+		prev = last_counter;
+		now = read_c0_count();
+		last_counter = now;
+		arch_spin_unlock(&sync_lock);
 
 		/*
-		 * Wait for slave to leave the synchronization point:
+		 * Be nice every now and then (and also check whether
+		 * measurement is done [we also insert a 10 million
+		 * loops safety exit, so we dont lock up in case the
+		 * counter is totally broken]):
 		 */
-		while (atomic_read(&count_count_stop) != 1)
-			mb();
-		atomic_set(&count_count_start, 0);
-		smp_wmb();
-		atomic_inc(&count_count_stop);
+		if (unlikely(!(i & 7))) {
+			if (now > end || i > 10000000)
+				break;
+			cpu_relax();
+			touch_nmi_watchdog();
+		}
+		/*
+		 * Outside the critical section we can now see whether
+		 * we saw a time-warp of the counter going backwards:
+		 */
+		if (unlikely(prev > now)) {
+			arch_spin_lock(&sync_lock);
+			max_warp = max(max_warp, prev - now);
+			cur_max_warp = max_warp;
+			/*
+			 * Check whether this bounces back and forth. Only
+			 * one CPU should observe time going backwards.
+			 */
+			if (cur_warps != nr_warps)
+				random_warps++;
+			nr_warps++;
+			cur_warps = nr_warps;
+			arch_spin_unlock(&sync_lock);
+		}
+	}
+	WARN(!(now-start),
+		"Warning: zero counter calibration delta: %d [max: %d]\n",
+			now-start, end-start);
+	return cur_max_warp;
+}
+
+/*
+ * The freshly booted CPU initiates this via an async SMP function call.
+ */
+static void check_counter_sync_source(void *__cpu)
+{
+	unsigned int cpu = (unsigned long)__cpu;
+	int cpus = 2;
+
+	atomic_set(&test_runs, NR_LOOPS);
+retry:
+	/* Wait for the target to start. */
+	while (atomic_read(&start_count) != cpus - 1)
+		cpu_relax();
+
+	/*
+	 * Trigger the target to continue into the measurement too:
+	 */
+	atomic_inc(&start_count);
+
+	check_counter_warp();
+
+	while (atomic_read(&stop_count) != cpus-1)
+		cpu_relax();
+
+	/*
+	 * If the test was successful set the number of runs to zero and
+	 * stop. If not, decrement the number of runs an check if we can
+	 * retry. In case of random warps no retry is attempted.
+	 */
+	if (!nr_warps) {
+		atomic_set(&test_runs, 0);
+
+		pr_info("Counter synchronization [CPU#%d -> CPU#%u]: passed\n",
+			smp_processor_id(), cpu);
+	} else if (atomic_dec_and_test(&test_runs) || random_warps) {
+		/* Force it to 0 if random warps brought us here */
+		atomic_set(&test_runs, 0);
+
+		pr_info("Counter synchronization [CPU#%d -> CPU#%u]:\n",
+			smp_processor_id(), cpu);
+		pr_info("Measured %d cycles counter warp between CPUs", max_warp);
+		if (random_warps)
+			pr_warn("Counter warped randomly between CPUs\n");
 	}
-	/* Arrange for an interrupt in a short while */
-	write_c0_compare(read_c0_count() + COUNTON);
 
-	local_irq_restore(flags);
+	/*
+	 * Reset it - just in case we boot another CPU later:
+	 */
+	atomic_set(&start_count, 0);
+	random_warps = 0;
+	nr_warps = 0;
+	max_warp = 0;
+	last_counter = 0;
+
+	/*
+	 * Let the target continue with the bootup:
+	 */
+	atomic_inc(&stop_count);
 
 	/*
-	 * i386 code reported the skew here, but the
-	 * count registers were almost certainly out of sync
-	 * so no point in alarming people
+	 * Retry, if there is a chance to do so.
 	 */
-	pr_cont("done.\n");
+	if (atomic_read(&test_runs) > 0)
+		goto retry;
 }
 
+/*
+ * Freshly booted CPUs call into this:
+ */
 void synchronise_count_slave(int cpu)
 {
-	int i;
-	unsigned long flags;
+	uint32_t cur_max_warp, gbl_max_warp, count;
+	int cpus = 2;
 
-	local_irq_save(flags);
+	if (!cpu_has_counter || !mips_hpt_frequency)
+		return;
 
+	/* Kick the control CPU into the counter synchronization function */
+	smp_call_function_single(cpumask_first(cpu_online_mask),
+				 check_counter_sync_source,
+				 (unsigned long *)(unsigned long)cpu, 0);
+retry:
 	/*
-	 * Not every cpu is online at the time this gets called,
-	 * so we first wait for the master to say everyone is ready
+	 * Register this CPU's participation and wait for the
+	 * source CPU to start the measurement:
 	 */
+	atomic_inc(&start_count);
+	while (atomic_read(&start_count) != cpus)
+		cpu_relax();
 
-	for (i = 0; i < NR_LOOPS; i++) {
-		atomic_inc(&count_count_start);
-		while (atomic_read(&count_count_start) != 2)
-			mb();
+	cur_max_warp = check_counter_warp();
 
-		/*
-		 * Everyone initialises count in the last loop:
-		 */
-		if (i == NR_LOOPS-1)
-			write_c0_count(initcount);
+	/*
+	 * Store the maximum observed warp value for a potential retry:
+	 */
+	gbl_max_warp = max_warp;
+
+	/*
+	 * Ok, we are done:
+	 */
+	atomic_inc(&stop_count);
+
+	/*
+	 * Wait for the source CPU to print stuff:
+	 */
+	while (atomic_read(&stop_count) != cpus)
+		cpu_relax();
 
-		atomic_inc(&count_count_stop);
-		while (atomic_read(&count_count_stop) != 2)
-			mb();
+	/*
+	 * Reset it for the next sync test:
+	 */
+	atomic_set(&stop_count, 0);
+
+	/*
+	 * Check the number of remaining test runs. If not zero, the test
+	 * failed and a retry with adjusted counter is possible. If zero the
+	 * test was either successful or failed terminally.
+	 */
+	if (!atomic_read(&test_runs)) {
+		/* Arrange for an interrupt in a short while */
+		write_c0_compare(read_c0_count() + COUNTON);
+		return;
 	}
-	/* Arrange for an interrupt in a short while */
-	write_c0_compare(read_c0_count() + COUNTON);
 
-	local_irq_restore(flags);
+	/*
+	 * If the warp value of this CPU is 0, then the other CPU
+	 * observed time going backwards so this counter was ahead and
+	 * needs to move backwards.
+	 */
+	if (!cur_max_warp)
+		cur_max_warp = -gbl_max_warp;
+
+	count = read_c0_count();
+	count += cur_max_warp;
+	write_c0_count(count);
+
+	pr_debug("Counter compensate: CPU%u observed %d warp\n", cpu, cur_max_warp);
+
+	goto retry;
+
 }
-#undef NR_LOOPS

arch/mips/kvm/interrupt.h

@@ -37,3 +37,7 @@ u32 kvm_irq_to_priority(u32 irq);
 int kvm_mips_pending_timer(struct kvm_vcpu *vcpu);
 
 void kvm_mips_deliver_interrupts(struct kvm_vcpu *vcpu, u32 cause);
+
+#ifdef CONFIG_CPU_LOONGSON64
+extern void kvm_init_loongson_ipi(struct kvm *kvm);
+#endif

arch/mips/kvm/loongson_ipi.c

@@ -10,6 +10,8 @@
 
 #include <linux/kvm_host.h>
 
+#include "interrupt.h"
+
 #define IPI_BASE            0x3ff01000ULL
 
 #define CORE0_STATUS_OFF       0x000

arch/mips/kvm/mips.c

@@ -135,8 +135,6 @@ void kvm_arch_hardware_disable(void)
 	kvm_mips_callbacks->hardware_disable();
 }
 
-extern void kvm_init_loongson_ipi(struct kvm *kvm);
-
 int kvm_arch_init_vm(struct kvm *kvm, unsigned long type)
 {
 	switch (type) {

arch/mips/lantiq/xway/sysctrl.c

@@ -247,6 +247,25 @@ static void pmu_disable(struct clk *clk)
 		pr_warn("deactivating PMU module failed!");
 }
 
+static void usb_set_clock(void)
+{
+	unsigned int val = ltq_cgu_r32(ifccr);
+
+	if (of_machine_is_compatible("lantiq,ar10") ||
+	    of_machine_is_compatible("lantiq,grx390")) {
+		val &= ~0x03; /* XTAL divided by 3 */
+	} else if (of_machine_is_compatible("lantiq,ar9") ||
+		   of_machine_is_compatible("lantiq,vr9")) {
+		/* TODO: this depends on the XTAL frequency */
+		val |= 0x03; /* XTAL divided by 3 */
+	} else if (of_machine_is_compatible("lantiq,ase")) {
+		val |= 0x20; /* from XTAL */
+	} else if (of_machine_is_compatible("lantiq,danube")) {
+		val |= 0x30; /* 12 MHz, generated from 36 MHz */
+	}
+	ltq_cgu_w32(val, ifccr);
+}
+
 /* the pci enable helper */
 static int pci_enable(struct clk *clk)
 {
@@ -588,4 +607,5 @@ void __init ltq_soc_init(void)
 		clkdev_add_pmu("1e116000.mei", "dfe", 1, 0, PMU_DFE);
 		clkdev_add_pmu("1e100400.serial", NULL, 1, 0, PMU_ASC0);
 	}
+	usb_set_clock();
 }

arch/mips/loongson64/Makefile

@@ -8,7 +8,7 @@ obj-$(CONFIG_MACH_LOONGSON64) += cop2-ex.o dma.o \
 obj-$(CONFIG_SMP)	+= smp.o
 obj-$(CONFIG_NUMA)	+= numa.o
 obj-$(CONFIG_RS780_HPET) += hpet.o
-obj-$(CONFIG_SUSPEND) += pm.o
+obj-$(CONFIG_SUSPEND) += pm.o sleeper.o
 obj-$(CONFIG_PCI_QUIRKS) += vbios_quirk.o
 obj-$(CONFIG_CPU_LOONGSON3_CPUCFG_EMULATION) += cpucfg-emul.o
 obj-$(CONFIG_SYSFS) += boardinfo.o

arch/mips/loongson64/dma.c

@@ -2,6 +2,7 @@
 #include <linux/dma-direct.h>
 #include <linux/init.h>
 #include <linux/swiotlb.h>
+#include <asm/bootinfo.h>
 #include <boot_param.h>
 
 dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr)

arch/mips/loongson64/env.c

@@ -88,6 +88,12 @@ void __init prom_lefi_init_env(void)
 	cpu_clock_freq = ecpu->cpu_clock_freq;
 	loongson_sysconf.cputype = ecpu->cputype;
 	switch (ecpu->cputype) {
+	case Legacy_2K:
+	case Loongson_2K:
+		smp_group[0] = 0x900000001fe11000;
+		loongson_sysconf.cores_per_node = 2;
+		loongson_sysconf.cores_per_package = 2;
+		break;
 	case Legacy_3A:
 	case Loongson_3A:
 		loongson_sysconf.cores_per_node = 4;
@@ -221,6 +227,8 @@ void __init prom_lefi_init_env(void)
 		default:
 			break;
 		}
+	} else if ((read_c0_prid() & PRID_IMP_MASK) == PRID_IMP_LOONGSON_64R) {
+		loongson_fdt_blob = __dtb_loongson64_2core_2k1000_begin;
 	} else if ((read_c0_prid() & PRID_IMP_MASK) == PRID_IMP_LOONGSON_64G) {
 		if (loongson_sysconf.bridgetype == LS7A)
 			loongson_fdt_blob = __dtb_loongson64g_4core_ls7a_begin;

arch/mips/loongson64/pm.c

@@ -6,98 +6,46 @@
  *  Author: Wu Zhangjin <wuzhangjin@gmail.com>
  */
 #include <linux/suspend.h>
-#include <linux/interrupt.h>
 #include <linux/pm.h>
 
-#include <asm/i8259.h>
 #include <asm/mipsregs.h>
 
 #include <loongson.h>
 
-static unsigned int __maybe_unused cached_master_mask;	/* i8259A */
-static unsigned int __maybe_unused cached_slave_mask;
-static unsigned int __maybe_unused cached_bonito_irq_mask; /* bonito */
+asmlinkage void loongson_lefi_sleep(unsigned long sleep_addr);
 
-void arch_suspend_disable_irqs(void)
+static int lefi_pm_enter(suspend_state_t state)
 {
-	/* disable all mips events */
-	local_irq_disable();
-
-#ifdef CONFIG_I8259
-	/* disable all events of i8259A */
-	cached_slave_mask = inb(PIC_SLAVE_IMR);
-	cached_master_mask = inb(PIC_MASTER_IMR);
-
-	outb(0xff, PIC_SLAVE_IMR);
-	inb(PIC_SLAVE_IMR);
-	outb(0xff, PIC_MASTER_IMR);
-	inb(PIC_MASTER_IMR);
-#endif
-	/* disable all events of bonito */
-	cached_bonito_irq_mask = LOONGSON_INTEN;
-	LOONGSON_INTENCLR = 0xffff;
-	(void)LOONGSON_INTENCLR;
-}
-
-void arch_suspend_enable_irqs(void)
-{
-	/* enable all mips events */
-	local_irq_enable();
-#ifdef CONFIG_I8259
-	/* only enable the cached events of i8259A */
-	outb(cached_slave_mask, PIC_SLAVE_IMR);
-	outb(cached_master_mask, PIC_MASTER_IMR);
-#endif
-	/* enable all cached events of bonito */
-	LOONGSON_INTENSET = cached_bonito_irq_mask;
-	(void)LOONGSON_INTENSET;
-}
-
-/*
- * Setup the board-specific events for waking up loongson from wait mode
- */
-void __weak setup_wakeup_events(void)
-{
-}
-
-void __weak mach_suspend(void)
-{
-}
-
-void __weak mach_resume(void)
-{
-}
-
-static int loongson_pm_enter(suspend_state_t state)
-{
-	mach_suspend();
-
-	mach_resume();
-
-	return 0;
+	switch (state) {
+	case PM_SUSPEND_MEM:
+		pm_set_suspend_via_firmware();
+		loongson_lefi_sleep(loongson_sysconf.suspend_addr);
+		pm_set_resume_via_firmware();
+		return 0;
+	default:
+		return -EINVAL;
+	}
 }
 
-static int loongson_pm_valid_state(suspend_state_t state)
+static int lefi_pm_valid_state(suspend_state_t state)
 {
 	switch (state) {
-	case PM_SUSPEND_ON:
-	case PM_SUSPEND_STANDBY:
 	case PM_SUSPEND_MEM:
-		return 1;
-
+		return !!loongson_sysconf.suspend_addr;
 	default:
 		return 0;
 	}
 }
 
-static const struct platform_suspend_ops loongson_pm_ops = {
-	.valid	= loongson_pm_valid_state,
-	.enter	= loongson_pm_enter,
+static const struct platform_suspend_ops lefi_pm_ops = {
+	.valid	= lefi_pm_valid_state,
+	.enter	= lefi_pm_enter,
 };
 
 static int __init loongson_pm_init(void)
 {
-	suspend_set_ops(&loongson_pm_ops);
+	if (loongson_sysconf.fw_interface == LOONGSON_LEFI)
+		suspend_set_ops(&lefi_pm_ops);
 
 	return 0;
 }

arch/mips/loongson64/reset.c

@@ -11,6 +11,7 @@
 #include <linux/init.h>
 #include <linux/kexec.h>
 #include <linux/pm.h>
+#include <linux/reboot.h>
 #include <linux/slab.h>
 
 #include <asm/bootinfo.h>
@@ -21,36 +22,21 @@
 #include <loongson.h>
 #include <boot_param.h>
 
-static void loongson_restart(char *command)
+static int firmware_restart(struct sys_off_data *unusedd)
 {
 
 	void (*fw_restart)(void) = (void *)loongson_sysconf.restart_addr;
 
 	fw_restart();
-	while (1) {
-		if (cpu_wait)
-			cpu_wait();
-	}
+	return NOTIFY_DONE;
 }
 
-static void loongson_poweroff(void)
+static int firmware_poweroff(struct sys_off_data *unused)
 {
 	void (*fw_poweroff)(void) = (void *)loongson_sysconf.poweroff_addr;
 
 	fw_poweroff();
-	while (1) {
-		if (cpu_wait)
-			cpu_wait();
-	}
-}
-
-static void loongson_halt(void)
-{
-	pr_notice("\n\n** You can safely turn off the power now **\n\n");
-	while (1) {
-		if (cpu_wait)
-			cpu_wait();
-	}
+	return NOTIFY_DONE;
 }
 
 #ifdef CONFIG_KEXEC_CORE
@@ -154,9 +140,17 @@ static void loongson_crash_shutdown(struct pt_regs *regs)
 
 static int __init mips_reboot_setup(void)
 {
-	_machine_restart = loongson_restart;
-	_machine_halt = loongson_halt;
-	pm_power_off = loongson_poweroff;
+	if (loongson_sysconf.restart_addr) {
+		register_sys_off_handler(SYS_OFF_MODE_RESTART,
+				 SYS_OFF_PRIO_FIRMWARE,
+				 firmware_restart, NULL);
+	}
+
+	if (loongson_sysconf.poweroff_addr) {
+		register_sys_off_handler(SYS_OFF_MODE_POWER_OFF,
+				 SYS_OFF_PRIO_FIRMWARE,
+				 firmware_poweroff, NULL);
+	}
 
 #ifdef CONFIG_KEXEC_CORE
 	kexec_argv = kmalloc(KEXEC_ARGV_SIZE, GFP_KERNEL);

arch/mips/loongson64/sleeper.S

+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ *  Copyright (C) 2024, Jiaxun Yang <jiaxun.yang@flygoat.com>
+ *  Loongson EFI firmware sleeper routine
+ */
+
+#include <asm/asm.h>
+#include <asm/pm.h>
+
+#include <kernel-entry-init.h>
+
+LEAF(loongson_lefi_sleep)
+	SUSPEND_SAVE
+	move	t9, a0
+	PTR_LA	a0, wake
+	move	a1, sp
+	jalr    t9
+wake:
+	smp_slave_setup
+	RESUME_RESTORE_REGS_RETURN
+END(loongson_lefi_sleep)

arch/mips/loongson64/smp.c

@@ -466,12 +466,25 @@ static void loongson3_smp_finish(void)
 static void __init loongson3_smp_setup(void)
 {
 	int i = 0, num = 0; /* i: physical id, num: logical id */
+	int max_cpus = 0;
 
 	init_cpu_possible(cpu_none_mask);
 
+	for (i = 0; i < ARRAY_SIZE(smp_group); i++) {
+		if (!smp_group[i])
+			break;
+		max_cpus += loongson_sysconf.cores_per_node;
+	}
+
+	if (max_cpus < loongson_sysconf.nr_cpus) {
+		pr_err("SMP Groups are less than the number of CPUs\n");
+		loongson_sysconf.nr_cpus = max_cpus ? max_cpus : 1;
+	}
+
 	/* For unified kernel, NR_CPUS is the maximum possible value,
 	 * loongson_sysconf.nr_cpus is the really present value
 	 */
+	i = 0;
 	while (i < loongson_sysconf.nr_cpus) {
 		if (loongson_sysconf.reserved_cpus_mask & (1<<i)) {
 			/* Reserved physical CPU cores */
@@ -492,14 +505,14 @@ static void __init loongson3_smp_setup(void)
 		__cpu_logical_map[num] = -1;
 		num++;
 	}
-
 	csr_ipi_probe();
 	ipi_set0_regs_init();
 	ipi_clear0_regs_init();
 	ipi_status0_regs_init();
 	ipi_en0_regs_init();
 	ipi_mailbox_buf_init();
-	ipi_write_enable(0);
+	if (smp_group[0])
+		ipi_write_enable(0);
 
 	cpu_set_core(&cpu_data[0],
 		     cpu_logical_map(0) % loongson_sysconf.cores_per_package);
@@ -818,6 +831,9 @@ static int loongson3_disable_clock(unsigned int cpu)
 	uint64_t core_id = cpu_core(&cpu_data[cpu]);
 	uint64_t package_id = cpu_data[cpu].package;
 
+	if (!loongson_chipcfg[package_id] || !loongson_freqctrl[package_id])
+		return 0;
+
 	if ((read_c0_prid() & PRID_REV_MASK) == PRID_REV_LOONGSON3A_R1) {
 		LOONGSON_CHIPCFG(package_id) &= ~(1 << (12 + core_id));
 	} else {
@@ -832,6 +848,9 @@ static int loongson3_enable_clock(unsigned int cpu)
 	uint64_t core_id = cpu_core(&cpu_data[cpu]);
 	uint64_t package_id = cpu_data[cpu].package;
 
+	if (!loongson_chipcfg[package_id] || !loongson_freqctrl[package_id])
+		return 0;
+
 	if ((read_c0_prid() & PRID_REV_MASK) == PRID_REV_LOONGSON3A_R1) {
 		LOONGSON_CHIPCFG(package_id) |= 1 << (12 + core_id);
 	} else {

arch/mips/mobileye/Kconfig

+# SPDX-License-Identifier: GPL-2.0
+if EYEQ
+
+choice
+	prompt "Mobileye EyeQ SoC selection"
+	default MACH_EYEQ5
+	help
+	  Select Mobileye EyeQ MIPS SoC type.
+
+	config MACH_EYEQ5
+		bool "Mobileye EyeQ5 SoC"
+
+	config MACH_EYEQ6H
+		bool "Mobileye EyeQ6H SoC"
+endchoice
+
+config FIT_IMAGE_FDT_EPM5
+	bool "Include FDT for Mobileye EyeQ5 development platforms"
+	depends on MACH_EYEQ5
+	default n
+	help
+	  Enable this to include the FDT for the EyeQ5 development platforms
+	  from Mobileye in the FIT kernel image.
+	  This requires u-boot on the platform.
+
+endif

arch/mips/mobileye/Platform

@@ -9,6 +9,7 @@
 #
 
 load-$(CONFIG_MACH_EYEQ5)	= 0xa800000808000000
+load-$(CONFIG_MACH_EYEQ6H)	= 0xa800000100800000
 all-$(CONFIG_MACH_EYEQ5)	+= vmlinux.gz.itb
 
 its-y					:= vmlinux.its.S

arch/mips/sgi-ip22/ip22-gio.c

@@ -246,7 +246,7 @@ void gio_set_master(struct gio_device *dev)
 }
 EXPORT_SYMBOL_GPL(gio_set_master);
 
-void ip22_gio_set_64bit(int slotno)
+static void ip22_gio_set_64bit(int slotno)
 {
 	u32 tmp = sgimc->giopar;
 
@@ -395,7 +395,7 @@ static struct resource gio_bus_resource = {
 	.flags = IORESOURCE_MEM,
 };
 
-int __init ip22_gio_init(void)
+static int __init ip22_gio_init(void)
 {
 	unsigned int pbdma __maybe_unused;
 	int ret;

arch/mips/sgi-ip22/ip22-int.c

@@ -165,8 +165,6 @@ static void __irq_entry indy_buserror_irq(void)
 #define SGI_INTERRUPTS	SGINT_LOCAL3
 #endif
 
-extern void indy_8254timer_irq(void);
-
 /*
  * IRQs on the INDY look basically (barring software IRQs which we don't use
  * at all) like:

arch/mips/sgi-ip22/ip22-setup.c

@@ -26,8 +26,6 @@
 #include <asm/sgi/hpc3.h>
 #include <asm/sgi/ip22.h>
 
-extern void ip22_be_init(void) __init;
-
 void __init plat_mem_setup(void)
 {
 	char *ctype;

arch/mips/sgi-ip30/ip30-console.c

 // SPDX-License-Identifier: GPL-2.0
 
 #include <linux/io.h>
+#include <linux/processor.h>
 
 #include <asm/sn/ioc3.h>
 #include <asm/setup.h>

drivers/platform/mips/cpu_hwmon.c

@@ -139,6 +139,9 @@ static int __init loongson_hwmon_init(void)
 		csr_temp_enable = csr_readl(LOONGSON_CSR_FEATURES) &
 				  LOONGSON_CSRF_TEMP;
 
+	if (!csr_temp_enable && !loongson_chiptemp[0])
+		return -ENODEV;
+
 	nr_packages = loongson_sysconf.nr_cpus /
 		loongson_sysconf.cores_per_package;