Merge tag 'mips_5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux

Pull MIPS updates from Thomas Bogendoerfer:

 - converted Pistachio platform to use MIPS generic kernel

 - fixes and cleanups

* tag 'mips_5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux: (29 commits)
  MIPS: Malta: fix alignment of the devicetree buffer
  MIPS: ingenic: Unconditionally enable clock of CPU #0
  MIPS: mscc: ocelot: mark the phy-mode for internal PHY ports
  MIPS: mscc: ocelot: disable all switch ports by default
  MAINTAINERS: adjust PISTACHIO SOC SUPPORT after its retirement
  MIPS: Return true/false (not 1/0) from bool functions
  MIPS: generic: Return true/false (not 1/0) from bool functions
  MIPS: Make a alias for pistachio_defconfig
  MIPS: Retire MACH_PISTACHIO
  MIPS: config: generic: Add config for Marduk board
  pinctrl: pistachio: Make it as an option
  phy: pistachio-usb: Depend on MIPS || COMPILE_TEST
  clocksource/drivers/pistachio: Make it selectable for MIPS
  clk: pistachio: Make it selectable for generic MIPS kernel
  MIPS: DTS: Pistachio add missing cpc and cdmm
  MIPS: generic: Allow generating FIT image for Marduk board
  MIPS: locking/atomic: Fix atomic{_64,}_sub_if_positive
  MIPS: loongson2ef: don't build serial.o unconditionally
  MIPS: Replace deprecated CPU-hotplug functions.
  MIPS: Alchemy: Fix spelling contraction "cant" -> "can't"
  ...

MAINTAINERS

@@ -11120,7 +11120,7 @@ MARDUK (CREATOR CI40) DEVICE TREE SUPPORT
 M:	Rahul Bedarkar <rahulbedarkar89@gmail.com>
 L:	linux-mips@vger.kernel.org
 S:	Maintained
-F:	arch/mips/boot/dts/img/pistachio_marduk.dts
+F:	arch/mips/boot/dts/img/pistachio*
 
 MARVELL 88E6XXX ETHERNET SWITCH FABRIC DRIVER
 M:	Andrew Lunn <andrew@lunn.ch>
@@ -14824,14 +14824,6 @@ S:	Maintained
 W:	http://www.st.com/spear
 F:	drivers/pinctrl/spear/
 
-PISTACHIO SOC SUPPORT
-M:	James Hartley <james.hartley@sondrel.com>
-L:	linux-mips@vger.kernel.org
-S:	Odd Fixes
-F:	arch/mips/boot/dts/img/pistachio*
-F:	arch/mips/configs/pistachio*_defconfig
-F:	arch/mips/pistachio/
-
 PKTCDVD DRIVER
 M:	linux-block@vger.kernel.org
 S:	Orphan

arch/mips/Kbuild.platforms

@@ -21,7 +21,6 @@ platform-$(CONFIG_MIPS_MALTA)		+= mti-malta/
 platform-$(CONFIG_MACH_NINTENDO64)	+= n64/
 platform-$(CONFIG_NLM_COMMON)		+= netlogic/
 platform-$(CONFIG_PIC32MZDA)		+= pic32/
-platform-$(CONFIG_MACH_PISTACHIO)	+= pistachio/
 platform-$(CONFIG_RALINK)		+= ralink/
 platform-$(CONFIG_MIKROTIK_RB532)	+= rb532/
 platform-$(CONFIG_SGI_IP22)		+= sgi-ip22/

arch/mips/Kconfig

@@ -514,35 +514,6 @@ config MACH_LOONGSON64
 	  and Loongson-2F which will be removed), developed by the Institute
 	  of Computing Technology (ICT), Chinese Academy of Sciences (CAS).
 
-config MACH_PISTACHIO
-	bool "IMG Pistachio SoC based boards"
-	select BOOT_ELF32
-	select BOOT_RAW
-	select CEVT_R4K
-	select CLKSRC_MIPS_GIC
-	select COMMON_CLK
-	select CSRC_R4K
-	select DMA_NONCOHERENT
-	select GPIOLIB
-	select IRQ_MIPS_CPU
-	select MFD_SYSCON
-	select MIPS_CPU_SCACHE
-	select MIPS_GIC
-	select PINCTRL
-	select REGULATOR
-	select SYS_HAS_CPU_MIPS32_R2
-	select SYS_SUPPORTS_32BIT_KERNEL
-	select SYS_SUPPORTS_LITTLE_ENDIAN
-	select SYS_SUPPORTS_MIPS_CPS
-	select SYS_SUPPORTS_MULTITHREADING
-	select SYS_SUPPORTS_RELOCATABLE
-	select SYS_SUPPORTS_ZBOOT
-	select SYS_HAS_EARLY_PRINTK
-	select USE_GENERIC_EARLY_PRINTK_8250
-	select USE_OF
-	help
-	  This enables support for the IMG Pistachio SoC platform.
-
 config MIPS_MALTA
 	bool "MIPS Malta board"
 	select ARCH_MAY_HAVE_PC_FDC
@@ -1089,7 +1060,6 @@ source "arch/mips/ingenic/Kconfig"
 source "arch/mips/jazz/Kconfig"
 source "arch/mips/lantiq/Kconfig"
 source "arch/mips/pic32/Kconfig"
-source "arch/mips/pistachio/Kconfig"
 source "arch/mips/ralink/Kconfig"
 source "arch/mips/sgi-ip27/Kconfig"
 source "arch/mips/sibyte/Kconfig"

arch/mips/Makefile

@@ -560,6 +560,9 @@ sead3micro_defconfig-y		:= micro32r2el_defconfig BOARDS=sead-3
 legacy_defconfigs		+= xilfpga_defconfig
 xilfpga_defconfig-y		:= 32r2el_defconfig BOARDS=xilfpga
 
+legacy_defconfigs		+= pistachio_defconfig
+pistachio_defconfig-y		:= 32r2el_defconfig BOARDS=marduk
+
 .PHONY: $(legacy_defconfigs)
 $(legacy_defconfigs):
 	$(Q)$(MAKE) -f $(srctree)/Makefile $($@-y)

arch/mips/alchemy/devboards/db1200.c

@@ -835,7 +835,7 @@ int __init db1200_dev_setup(void)
 	if (!IS_ERR(c)) {
 		pfc = clk_round_rate(c, 50000000);
 		if ((pfc < 1) || (abs(50000000 - pfc) > 2500000))
-			pr_warn("DB1200: cant get I2C close to 50MHz\n");
+			pr_warn("DB1200: can't get I2C close to 50MHz\n");
 		else
 			clk_set_rate(c, pfc);
 		clk_prepare_enable(c);

arch/mips/boot/dts/Makefile

 # SPDX-License-Identifier: GPL-2.0
 subdir-$(CONFIG_BMIPS_GENERIC)		+= brcm
 subdir-$(CONFIG_CAVIUM_OCTEON_SOC)	+= cavium-octeon
-subdir-$(CONFIG_MACH_PISTACHIO)		+= img
+subdir-$(CONFIG_FIT_IMAGE_FDT_MARDUK)   += img
 subdir-$(CONFIG_FIT_IMAGE_FDT_BOSTON)	+= img
 subdir-$(CONFIG_MACH_INGENIC)		+= ingenic
 subdir-$(CONFIG_LANTIQ)			+= lantiq

arch/mips/boot/dts/img/Makefile

 # SPDX-License-Identifier: GPL-2.0
 dtb-$(CONFIG_FIT_IMAGE_FDT_BOSTON)	+= boston.dtb
 
-dtb-$(CONFIG_MACH_PISTACHIO)	+= pistachio_marduk.dtb
-obj-$(CONFIG_MACH_PISTACHIO)	+= pistachio_marduk.dtb.o
+dtb-$(CONFIG_FIT_IMAGE_FDT_MARDUK)	+= pistachio_marduk.dtb

arch/mips/boot/dts/img/pistachio.dtsi

@@ -900,6 +900,16 @@ timer {
 		};
 	};
 
+	cpc: cpc@1bde0000 {
+		compatible = "mti,mips-cpc";
+		reg = <0x1bde0000 0x10000>;
+	};
+
+	cdmm: cdmm@1bdf0000 {
+		compatible = "mti,mips-cdmm";
+		reg = <0x1bdf0000 0x10000>;
+	};
+
 	usb_phy: usb-phy {
 		compatible = "img,pistachio-usb-phy";
 		clocks = <&clk_core CLK_USB_PHY>;

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

@@ -150,36 +150,47 @@ ethernet-ports {
 
 				port0: port@0 {
 					reg = <0>;
+					status = "disabled";
 				};
 				port1: port@1 {
 					reg = <1>;
+					status = "disabled";
 				};
 				port2: port@2 {
 					reg = <2>;
+					status = "disabled";
 				};
 				port3: port@3 {
 					reg = <3>;
+					status = "disabled";
 				};
 				port4: port@4 {
 					reg = <4>;
+					status = "disabled";
 				};
 				port5: port@5 {
 					reg = <5>;
+					status = "disabled";
 				};
 				port6: port@6 {
 					reg = <6>;
+					status = "disabled";
 				};
 				port7: port@7 {
 					reg = <7>;
+					status = "disabled";
 				};
 				port8: port@8 {
 					reg = <8>;
+					status = "disabled";
 				};
 				port9: port@9 {
 					reg = <9>;
+					status = "disabled";
 				};
 				port10: port@10 {
 					reg = <10>;
+					status = "disabled";
 				};
 			};
 		};

arch/mips/boot/dts/mscc/ocelot_pcb120.dts

@@ -69,40 +69,52 @@ phy4: ethernet-phy@3 {
 };
 
 &port0 {
+	status = "okay";
 	phy-handle = <&phy0>;
+	phy-mode = "internal";
 };
 
 &port1 {
+	status = "okay";
 	phy-handle = <&phy1>;
+	phy-mode = "internal";
 };
 
 &port2 {
+	status = "okay";
 	phy-handle = <&phy2>;
+	phy-mode = "internal";
 };
 
 &port3 {
+	status = "okay";
 	phy-handle = <&phy3>;
+	phy-mode = "internal";
 };
 
 &port4 {
+	status = "okay";
 	phy-handle = <&phy7>;
 	phy-mode = "sgmii";
 	phys = <&serdes 4 SERDES1G(2)>;
 };
 
 &port5 {
+	status = "okay";
 	phy-handle = <&phy4>;
 	phy-mode = "sgmii";
 	phys = <&serdes 5 SERDES1G(5)>;
 };
 
 &port6 {
+	status = "okay";
 	phy-handle = <&phy6>;
 	phy-mode = "sgmii";
 	phys = <&serdes 6 SERDES1G(3)>;
 };
 
 &port9 {
+	status = "okay";
 	phy-handle = <&phy5>;
 	phy-mode = "sgmii";
 	phys = <&serdes 9 SERDES1G(4)>;

arch/mips/boot/dts/mscc/ocelot_pcb123.dts

@@ -47,17 +47,25 @@ &mdio0 {
 };
 
 &port0 {
+	status = "okay";
 	phy-handle = <&phy0>;
+	phy-mode = "internal";
 };
 
 &port1 {
+	status = "okay";
 	phy-handle = <&phy1>;
+	phy-mode = "internal";
 };
 
 &port2 {
+	status = "okay";
 	phy-handle = <&phy2>;
+	phy-mode = "internal";
 };
 
 &port3 {
+	status = "okay";
 	phy-handle = <&phy3>;
+	phy-mode = "internal";
 };

arch/mips/cavium-octeon/executive/cvmx-bootmem.c

@@ -44,7 +44,7 @@ static struct cvmx_bootmem_desc *cvmx_bootmem_desc;
 
 /* See header file for descriptions of functions */
 
-/**
+/*
  * This macro returns a member of the
  * cvmx_bootmem_named_block_desc_t structure. These members can't
  * be directly addressed as they might be in memory not directly
@@ -60,7 +60,7 @@ static struct cvmx_bootmem_desc *cvmx_bootmem_desc;
 		offsetof(struct cvmx_bootmem_named_block_desc, field),	\
 		sizeof_field(struct cvmx_bootmem_named_block_desc, field))
 
-/**
+/*
  * This function is the implementation of the get macros defined
  * for individual structure members. The argument are generated
  * by the macros inorder to read only the needed memory.
@@ -115,7 +115,7 @@ static uint64_t cvmx_bootmem_phy_get_next(uint64_t addr)
 	return cvmx_read64_uint64((addr + NEXT_OFFSET) | (1ull << 63));
 }
 
-/**
+/*
  * Allocate a block of memory from the free list that was
  * passed to the application by the bootloader within a specified
  * address range. This is an allocate-only algorithm, so
@@ -550,7 +550,7 @@ int __cvmx_bootmem_phy_free(uint64_t phy_addr, uint64_t size, uint32_t flags)
 
 }
 
-/**
+/*
  * Finds a named memory block by name.
  * Also used for finding an unused entry in the named block table.
  *
@@ -657,7 +657,7 @@ struct cvmx_bootmem_named_block_desc *cvmx_bootmem_find_named_block(char *name)
 }
 EXPORT_SYMBOL(cvmx_bootmem_find_named_block);
 
-/**
+/*
  * Frees a named block.
  *
  * @name:   name of block to free

arch/mips/cavium-octeon/executive/cvmx-cmd-queue.c

@@ -42,14 +42,14 @@
 #include <asm/octeon/cvmx-pexp-defs.h>
 #include <asm/octeon/cvmx-pko-defs.h>
 
-/**
+/*
  * This application uses this pointer to access the global queue
  * state. It points to a bootmem named block.
  */
 __cvmx_cmd_queue_all_state_t *__cvmx_cmd_queue_state_ptr;
 EXPORT_SYMBOL_GPL(__cvmx_cmd_queue_state_ptr);
 
-/**
+/*
  * Initialize the Global queue state pointer.
  *
  * Returns CVMX_CMD_QUEUE_SUCCESS or a failure code
@@ -57,27 +57,14 @@ EXPORT_SYMBOL_GPL(__cvmx_cmd_queue_state_ptr);
 static cvmx_cmd_queue_result_t __cvmx_cmd_queue_init_state_ptr(void)
 {
 	char *alloc_name = "cvmx_cmd_queues";
-#if defined(CONFIG_CAVIUM_RESERVE32) && CONFIG_CAVIUM_RESERVE32
-	extern uint64_t octeon_reserve32_memory;
-#endif
 
 	if (likely(__cvmx_cmd_queue_state_ptr))
 		return CVMX_CMD_QUEUE_SUCCESS;
 
-#if defined(CONFIG_CAVIUM_RESERVE32) && CONFIG_CAVIUM_RESERVE32
-	if (octeon_reserve32_memory)
-		__cvmx_cmd_queue_state_ptr =
-		    cvmx_bootmem_alloc_named_range(sizeof(*__cvmx_cmd_queue_state_ptr),
-						   octeon_reserve32_memory,
-						   octeon_reserve32_memory +
-						   (CONFIG_CAVIUM_RESERVE32 <<
-						    20) - 1, 128, alloc_name);
-	else
-#endif
-		__cvmx_cmd_queue_state_ptr =
-		    cvmx_bootmem_alloc_named(sizeof(*__cvmx_cmd_queue_state_ptr),
-					    128,
-					    alloc_name);
+	__cvmx_cmd_queue_state_ptr =
+		cvmx_bootmem_alloc_named(sizeof(*__cvmx_cmd_queue_state_ptr),
+					 128,
+					 alloc_name);
 	if (__cvmx_cmd_queue_state_ptr)
 		memset(__cvmx_cmd_queue_state_ptr, 0,
 		       sizeof(*__cvmx_cmd_queue_state_ptr));
@@ -97,7 +84,7 @@ static cvmx_cmd_queue_result_t __cvmx_cmd_queue_init_state_ptr(void)
 	return CVMX_CMD_QUEUE_SUCCESS;
 }
 
-/**
+/*
  * Initialize a command queue for use. The initial FPA buffer is
  * allocated and the hardware unit is configured to point to the
  * new command queue.
@@ -195,7 +182,7 @@ cvmx_cmd_queue_result_t cvmx_cmd_queue_initialize(cvmx_cmd_queue_id_t queue_id,
 	}
 }
 
-/**
+/*
  * Shutdown a queue a free it's command buffers to the FPA. The
  * hardware connected to the queue must be stopped before this
  * function is called.
@@ -231,7 +218,7 @@ cvmx_cmd_queue_result_t cvmx_cmd_queue_shutdown(cvmx_cmd_queue_id_t queue_id)
 	return CVMX_CMD_QUEUE_SUCCESS;
 }
 
-/**
+/*
  * Return the number of command words pending in the queue. This
  * function may be relatively slow for some hardware units.
  *
@@ -287,7 +274,7 @@ int cvmx_cmd_queue_length(cvmx_cmd_queue_id_t queue_id)
 	return CVMX_CMD_QUEUE_INVALID_PARAM;
 }
 
-/**
+/*
  * Return the command buffer to be written to. The purpose of this
  * function is to allow CVMX routine access t othe low level buffer
  * for initial hardware setup. User applications should not call this

arch/mips/cavium-octeon/executive/cvmx-helper-board.c

@@ -44,7 +44,7 @@
 #include <asm/octeon/cvmx-gmxx-defs.h>
 #include <asm/octeon/cvmx-asxx-defs.h>
 
-/**
+/*
  * Return the MII PHY address associated with the given IPD
  * port. A result of -1 means there isn't a MII capable PHY
  * connected to this port. On chips supporting multiple MII
@@ -189,7 +189,7 @@ int cvmx_helper_board_get_mii_address(int ipd_port)
 	return -1;
 }
 
-/**
+/*
  * This function is the board specific method of determining an
  * ethernet ports link speed. Most Octeon boards have Marvell PHYs
  * and are handled by the fall through case. This function must be
@@ -274,7 +274,7 @@ union cvmx_helper_link_info __cvmx_helper_board_link_get(int ipd_port)
 	return result;
 }
 
-/**
+/*
  * This function is called by cvmx_helper_interface_probe() after it
  * determines the number of ports Octeon can support on a specific
  * interface. This function is the per board location to override
@@ -320,7 +320,7 @@ int __cvmx_helper_board_interface_probe(int interface, int supported_ports)
 	return supported_ports;
 }
 
-/**
+/*
  * Get the clock type used for the USB block based on board type.
  * Used by the USB code for auto configuration of clock type.
  *

arch/mips/cavium-octeon/executive/cvmx-helper-rgmii.c

@@ -42,7 +42,7 @@
 #include <asm/octeon/cvmx-asxx-defs.h>
 #include <asm/octeon/cvmx-dbg-defs.h>
 
-/**
+/*
  * Probe RGMII ports and determine the number present
  *
  * @interface: Interface to probe
@@ -88,7 +88,7 @@ int __cvmx_helper_rgmii_probe(int interface)
 	return num_ports;
 }
 
-/**
+/*
  * Put an RGMII interface in loopback mode. Internal packets sent
  * out will be received back again on the same port. Externally
  * received packets will echo back out.
@@ -120,7 +120,7 @@ void cvmx_helper_rgmii_internal_loopback(int port)
 	cvmx_write_csr(CVMX_GMXX_PRTX_CFG(index, interface), gmx_cfg.u64);
 }
 
-/**
+/*
  * Workaround ASX setup errata with CN38XX pass1
  *
  * @interface: Interface to setup
@@ -148,7 +148,7 @@ static int __cvmx_helper_errata_asx_pass1(int interface, int port,
 	return 0;
 }
 
-/**
+/*
  * Configure all of the ASX, GMX, and PKO registers required
  * to get RGMII to function on the supplied interface.
  *
@@ -251,7 +251,7 @@ int __cvmx_helper_rgmii_enable(int interface)
 	return 0;
 }
 
-/**
+/*
  * Return the link state of an IPD/PKO port as returned by
  * auto negotiation. The result of this function may not match
  * Octeon's link config if auto negotiation has changed since
@@ -280,7 +280,7 @@ union cvmx_helper_link_info __cvmx_helper_rgmii_link_get(int ipd_port)
 		return __cvmx_helper_board_link_get(ipd_port);
 }
 
-/**
+/*
  * Configure an IPD/PKO port for the specified link state. This
  * function does not influence auto negotiation at the PHY level.
  * The passed link state must always match the link state returned

arch/mips/cavium-octeon/executive/cvmx-helper-xaui.c

@@ -54,7 +54,7 @@ int __cvmx_helper_xaui_enumerate(int interface)
 		return 1;
 }
 
-/**
+/*
  * Probe a XAUI interface and determine the number of ports
  * connected to it. The XAUI interface should still be down
  * after this call.
@@ -102,7 +102,7 @@ int __cvmx_helper_xaui_probe(int interface)
 	return __cvmx_helper_xaui_enumerate(interface);
 }
 
-/**
+/*
  * Bringup and enable a XAUI interface. After this call packet
  * I/O should be fully functional. This is called with IPD
  * enabled but PKO disabled.
@@ -249,7 +249,7 @@ int __cvmx_helper_xaui_enable(int interface)
 	return 0;
 }
 
-/**
+/*
  * Return the link state of an IPD/PKO port as returned by
  * auto negotiation. The result of this function may not match
  * Octeon's link config if auto negotiation has changed since
@@ -288,7 +288,7 @@ union cvmx_helper_link_info __cvmx_helper_xaui_link_get(int ipd_port)
 	return result;
 }
 
-/**
+/*
  * Configure an IPD/PKO port for the specified link state. This
  * function does not influence auto negotiation at the PHY level.
  * The passed link state must always match the link state returned

arch/mips/cavium-octeon/executive/cvmx-interrupt-decodes.c

@@ -46,7 +46,9 @@
 
 
 /**
- * __cvmx_interrupt_gmxx_rxx_int_en_enable enables all interrupt bits in cvmx_gmxx_rxx_int_en_t
+ * __cvmx_interrupt_gmxx_rxx_int_en_enable - enable all interrupt bits in cvmx_gmxx_rxx_int_en_t
+ * @index: interrupt register offset
+ * @block: interrupt register block_id
  */
 void __cvmx_interrupt_gmxx_rxx_int_en_enable(int index, int block)
 {
@@ -227,7 +229,9 @@ void __cvmx_interrupt_gmxx_rxx_int_en_enable(int index, int block)
 	cvmx_write_csr(CVMX_GMXX_RXX_INT_EN(index, block), gmx_rx_int_en.u64);
 }
 /**
- * __cvmx_interrupt_pcsx_intx_en_reg_enable enables all interrupt bits in cvmx_pcsx_intx_en_reg_t
+ * __cvmx_interrupt_pcsx_intx_en_reg_enable - enable all interrupt bits in cvmx_pcsx_intx_en_reg_t
+ * @index: interrupt register offset
+ * @block: interrupt register block_id
  */
 void __cvmx_interrupt_pcsx_intx_en_reg_enable(int index, int block)
 {
@@ -268,7 +272,8 @@ void __cvmx_interrupt_pcsx_intx_en_reg_enable(int index, int block)
 	cvmx_write_csr(CVMX_PCSX_INTX_EN_REG(index, block), pcs_int_en_reg.u64);
 }
 /**
- * __cvmx_interrupt_pcsxx_int_en_reg_enable enables all interrupt bits in cvmx_pcsxx_int_en_reg_t
+ * __cvmx_interrupt_pcsxx_int_en_reg_enable - enable all interrupt bits in cvmx_pcsxx_int_en_reg_t
+ * @index: interrupt register block_id
  */
 void __cvmx_interrupt_pcsxx_int_en_reg_enable(int index)
 {
@@ -298,7 +303,8 @@ void __cvmx_interrupt_pcsxx_int_en_reg_enable(int index)
 }
 
 /**
- * __cvmx_interrupt_spxx_int_msk_enable enables all interrupt bits in cvmx_spxx_int_msk_t
+ * __cvmx_interrupt_spxx_int_msk_enable - enable all interrupt bits in cvmx_spxx_int_msk_t
+ * @index: interrupt register block_id
  */
 void __cvmx_interrupt_spxx_int_msk_enable(int index)
 {
@@ -337,7 +343,8 @@ void __cvmx_interrupt_spxx_int_msk_enable(int index)
 	cvmx_write_csr(CVMX_SPXX_INT_MSK(index), spx_int_msk.u64);
 }
 /**
- * __cvmx_interrupt_stxx_int_msk_enable enables all interrupt bits in cvmx_stxx_int_msk_t
+ * __cvmx_interrupt_stxx_int_msk_enable - enable all interrupt bits in cvmx_stxx_int_msk_t
+ * @index: interrupt register block_id
  */
 void __cvmx_interrupt_stxx_int_msk_enable(int index)
 {

arch/mips/cavium-octeon/executive/cvmx-l2c.c

@@ -281,7 +281,7 @@ uint64_t cvmx_l2c_read_perf(uint32_t counter)
 	}
 }
 
-/**
+/*
  * @INTERNAL
  * Helper function use to fault in cache lines for L2 cache locking
  *
@@ -575,7 +575,7 @@ union __cvmx_l2c_tag {
 };
 
 
-/**
+/*
  * @INTERNAL
  * Function to read a L2C tag.  This code make the current core
  * the 'debug core' for the L2.  This code must only be executed by
@@ -764,9 +764,8 @@ int cvmx_l2c_get_cache_size_bytes(void)
 		CVMX_CACHE_LINE_SIZE;
 }
 
-/**
+/*
  * Return log base 2 of the number of sets in the L2 cache
- * Returns
  */
 int cvmx_l2c_get_set_bits(void)
 {
@@ -857,7 +856,7 @@ int cvmx_l2c_get_num_assoc(void)
 	return l2_assoc;
 }
 
-/**
+/*
  * Flush a line from the L2 cache
  * This should only be called from one core at a time, as this routine
  * sets the core to the 'debug' core in order to flush the line.

arch/mips/cavium-octeon/executive/cvmx-pko.c

@@ -35,7 +35,7 @@
 #include <asm/octeon/cvmx-pko.h>
 #include <asm/octeon/cvmx-helper.h>
 
-/**
+/*
  * Internal state of packet output
  */
 
@@ -176,7 +176,7 @@ static void __cvmx_pko_chip_init(void)
 	}
 }
 
-/**
+/*
  * Call before any other calls to initialize the packet
  * output system.  This does chip global config, and should only be
  * done by one core.
@@ -229,7 +229,7 @@ void cvmx_pko_initialize_global(void)
 	}
 }
 
-/**
+/*
  * This function does per-core initialization required by the PKO routines.
  * This must be called on all cores that will do packet output, and must
  * be called after the FPA has been initialized and filled with pages.
@@ -243,7 +243,7 @@ int cvmx_pko_initialize_local(void)
 	return 0;
 }
 
-/**
+/*
  * Enables the packet output hardware. It must already be
  * configured.
  */
@@ -266,7 +266,7 @@ void cvmx_pko_enable(void)
 	cvmx_write_csr(CVMX_PKO_REG_FLAGS, flags.u64);
 }
 
-/**
+/*
  * Disables the packet output. Does not affect any configuration.
  */
 void cvmx_pko_disable(void)
@@ -278,7 +278,7 @@ void cvmx_pko_disable(void)
 }
 EXPORT_SYMBOL_GPL(cvmx_pko_disable);
 
-/**
+/*
  * Reset the packet output.
  */
 static void __cvmx_pko_reset(void)
@@ -289,7 +289,7 @@ static void __cvmx_pko_reset(void)
 	cvmx_write_csr(CVMX_PKO_REG_FLAGS, pko_reg_flags.u64);
 }
 
-/**
+/*
  * Shutdown and free resources required by packet output.
  */
 void cvmx_pko_shutdown(void)
@@ -320,7 +320,7 @@ void cvmx_pko_shutdown(void)
 }
 EXPORT_SYMBOL_GPL(cvmx_pko_shutdown);
 
-/**
+/*
  * Configure a output port and the associated queues for use.
  *
  * @port:	Port to configure.
@@ -548,7 +548,7 @@ cvmx_pko_status_t cvmx_pko_config_port(uint64_t port, uint64_t base_queue,
 }
 
 #ifdef PKO_DEBUG
-/**
+/*
  * Show map of ports -> queues for different cores.
  */
 void cvmx_pko_show_queue_map()
@@ -573,7 +573,7 @@ void cvmx_pko_show_queue_map()
 }
 #endif
 
-/**
+/*
  * Rate limit a PKO port to a max packets/sec. This function is only
  * supported on CN51XX and higher, excluding CN58XX.
  *
@@ -606,7 +606,7 @@ int cvmx_pko_rate_limit_packets(int port, int packets_s, int burst)
 	return 0;
 }
 
-/**
+/*
  * Rate limit a PKO port to a max bits/sec. This function is only
  * supported on CN51XX and higher, excluding CN58XX.
  *

arch/mips/cavium-octeon/executive/cvmx-spi.c

@@ -66,7 +66,7 @@ static cvmx_spi_callbacks_t cvmx_spi_callbacks = {
 	.interface_up_cb = cvmx_spi_interface_up_cb
 };
 
-/**
+/*
  * Get current SPI4 initialization callbacks
  *
  * @callbacks:	Pointer to the callbacks structure.to fill
@@ -78,7 +78,7 @@ void cvmx_spi_get_callbacks(cvmx_spi_callbacks_t *callbacks)
 	memcpy(callbacks, &cvmx_spi_callbacks, sizeof(cvmx_spi_callbacks));
 }
 
-/**
+/*
  * Set new SPI4 initialization callbacks
  *
  * @new_callbacks:  Pointer to an updated callbacks structure.
@@ -88,7 +88,7 @@ void cvmx_spi_set_callbacks(cvmx_spi_callbacks_t *new_callbacks)
 	memcpy(&cvmx_spi_callbacks, new_callbacks, sizeof(cvmx_spi_callbacks));
 }
 
-/**
+/*
  * Initialize and start the SPI interface.
  *
  * @interface: The identifier of the packet interface to configure and
@@ -133,7 +133,7 @@ int cvmx_spi_start_interface(int interface, cvmx_spi_mode_t mode, int timeout,
 	return res;
 }
 
-/**
+/*
  * This routine restarts the SPI interface after it has lost synchronization
  * with its correspondent system.
  *
@@ -179,7 +179,7 @@ int cvmx_spi_restart_interface(int interface, cvmx_spi_mode_t mode, int timeout)
 }
 EXPORT_SYMBOL_GPL(cvmx_spi_restart_interface);
 
-/**
+/*
  * Callback to perform SPI4 reset
  *
  * @interface: The identifier of the packet interface to configure and
@@ -294,7 +294,7 @@ int cvmx_spi_reset_cb(int interface, cvmx_spi_mode_t mode)
 	return 0;
 }
 
-/**
+/*
  * Callback to setup calendar and miscellaneous settings before clock detection
  *
  * @interface: The identifier of the packet interface to configure and
@@ -413,7 +413,7 @@ int cvmx_spi_calendar_setup_cb(int interface, cvmx_spi_mode_t mode,
 	return 0;
 }
 
-/**
+/*
  * Callback to perform clock detection
  *
  * @interface: The identifier of the packet interface to configure and
@@ -491,7 +491,7 @@ int cvmx_spi_clock_detect_cb(int interface, cvmx_spi_mode_t mode, int timeout)
 	return 0;
 }
 
-/**
+/*
  * Callback to perform link training
  *
  * @interface: The identifier of the packet interface to configure and
@@ -560,7 +560,7 @@ int cvmx_spi_training_cb(int interface, cvmx_spi_mode_t mode, int timeout)
 	return 0;
 }
 
-/**
+/*
  * Callback to perform calendar data synchronization
  *
  * @interface: The identifier of the packet interface to configure and
@@ -617,7 +617,7 @@ int cvmx_spi_calendar_sync_cb(int interface, cvmx_spi_mode_t mode, int timeout)
 	return 0;
 }
 
-/**
+/*
  * Callback to handle interface up
  *
  * @interface: The identifier of the packet interface to configure and

arch/mips/cavium-octeon/flash_setup.c

@@ -62,7 +62,7 @@ static void octeon_flash_map_copy_to(struct map_info *map, unsigned long to,
 	up(&octeon_bootbus_sem);
 }
 
-/**
+/*
  * Module/ driver initialization.
  *
  * Returns Zero on success

arch/mips/cavium-octeon/setup.c

@@ -284,11 +284,6 @@ void octeon_crash_smp_send_stop(void)
 
 #endif /* CONFIG_KEXEC */
 
-#ifdef CONFIG_CAVIUM_RESERVE32
-uint64_t octeon_reserve32_memory;
-EXPORT_SYMBOL(octeon_reserve32_memory);
-#endif
-
 #ifdef CONFIG_KEXEC
 /* crashkernel cmdline parameter is parsed _after_ memory setup
  * we also parse it here (workaround for EHB5200) */
@@ -300,9 +295,10 @@ static int octeon_uart;
 extern asmlinkage void handle_int(void);
 
 /**
- * Return non zero if we are currently running in the Octeon simulator
+ * octeon_is_simulation - Return non-zero if we are currently running
+ * in the Octeon simulator
  *
- * Returns
+ * Return: non-0 if running in the Octeon simulator, 0 otherwise
  */
 int octeon_is_simulation(void)
 {
@@ -311,10 +307,10 @@ int octeon_is_simulation(void)
 EXPORT_SYMBOL(octeon_is_simulation);
 
 /**
- * Return true if Octeon is in PCI Host mode. This means
+ * octeon_is_pci_host - Return true if Octeon is in PCI Host mode. This means
  * Linux can control the PCI bus.
  *
- * Returns Non zero if Octeon in host mode.
+ * Return: Non-zero if Octeon is in host mode.
  */
 int octeon_is_pci_host(void)
 {
@@ -326,9 +322,9 @@ int octeon_is_pci_host(void)
 }
 
 /**
- * Get the clock rate of Octeon
+ * octeon_get_clock_rate - Get the clock rate of Octeon
  *
- * Returns Clock rate in HZ
+ * Return: Clock rate in HZ
  */
 uint64_t octeon_get_clock_rate(void)
 {
@@ -348,11 +344,11 @@ EXPORT_SYMBOL(octeon_get_io_clock_rate);
 
 
 /**
- * Write to the LCD display connected to the bootbus. This display
- * exists on most Cavium evaluation boards. If it doesn't exist, then
- * this function doesn't do anything.
- *
+ * octeon_write_lcd - Write to the LCD display connected to the bootbus.
  * @s:	    String to write
+ *
+ * This display exists on most Cavium evaluation boards. If it doesn't exist,
+ * then this function doesn't do anything.
  */
 static void octeon_write_lcd(const char *s)
 {
@@ -372,9 +368,9 @@ static void octeon_write_lcd(const char *s)
 }
 
 /**
- * Return the console uart passed by the bootloader
+ * octeon_get_boot_uart - Return the console uart passed by the bootloader
  *
- * Returns uart	  (0 or 1)
+ * Return: uart number (0 or 1)
  */
 static int octeon_get_boot_uart(void)
 {
@@ -383,9 +379,9 @@ static int octeon_get_boot_uart(void)
 }
 
 /**
- * Get the coremask Linux was booted on.
+ * octeon_get_boot_coremask - Get the coremask Linux was booted on.
  *
- * Returns Core mask
+ * Return: Core mask
  */
 int octeon_get_boot_coremask(void)
 {
@@ -393,7 +389,7 @@ int octeon_get_boot_coremask(void)
 }
 
 /**
- * Check the hardware BIST results for a CPU
+ * octeon_check_cpu_bist - Check the hardware BIST results for a CPU
  */
 void octeon_check_cpu_bist(void)
 {
@@ -424,7 +420,7 @@ void octeon_check_cpu_bist(void)
 }
 
 /**
- * Reboot Octeon
+ * octeon_restart - Reboot Octeon
  *
  * @command: Command to pass to the bootloader. Currently ignored.
  */
@@ -449,7 +445,7 @@ static void octeon_restart(char *command)
 
 
 /**
- * Permanently stop a core.
+ * octeon_kill_core - Permanently stop a core.
  *
  * @arg: Ignored.
  */
@@ -469,7 +465,7 @@ static void octeon_kill_core(void *arg)
 
 
 /**
- * Halt the system
+ * octeon_halt - Halt the system
  */
 static void octeon_halt(void)
 {
@@ -512,9 +508,9 @@ static void __init init_octeon_system_type(void)
 }
 
 /**
- * Return a string representing the system type
+ * octeon_board_type_string - Return a string representing the system type
  *
- * Returns
+ * Return: system type string
  */
 const char *octeon_board_type_string(void)
 {
@@ -655,7 +651,7 @@ void octeon_user_io_init(void)
 }
 
 /**
- * Early entry point for arch setup
+ * prom_init - Early entry point for arch setup
  */
 void __init prom_init(void)
 {
@@ -665,9 +661,7 @@ void __init prom_init(void)
 	int i;
 	u64 t;
 	int argc;
-#ifdef CONFIG_CAVIUM_RESERVE32
-	int64_t addr = -1;
-#endif
+
 	/*
 	 * The bootloader passes a pointer to the boot descriptor in
 	 * $a3, this is available as fw_arg3.
@@ -782,25 +776,6 @@ void __init prom_init(void)
 		cvmx_write_csr(CVMX_LED_UDD_DATX(1), 0);
 		cvmx_write_csr(CVMX_LED_EN, 1);
 	}
-#ifdef CONFIG_CAVIUM_RESERVE32
-	/*
-	 * We need to temporarily allocate all memory in the reserve32
-	 * region. This makes sure the kernel doesn't allocate this
-	 * memory when it is getting memory from the
-	 * bootloader. Later, after the memory allocations are
-	 * complete, the reserve32 will be freed.
-	 *
-	 * Allocate memory for RESERVED32 aligned on 2MB boundary. This
-	 * is in case we later use hugetlb entries with it.
-	 */
-	addr = cvmx_bootmem_phy_named_block_alloc(CONFIG_CAVIUM_RESERVE32 << 20,
-						0, 0, 2 << 20,
-						"CAVIUM_RESERVE32", 0);
-	if (addr < 0)
-		pr_err("Failed to allocate CAVIUM_RESERVE32 memory area\n");
-	else
-		octeon_reserve32_memory = addr;
-#endif
 
 #ifdef CONFIG_CAVIUM_OCTEON_LOCK_L2
 	if (cvmx_read_csr(CVMX_L2D_FUS3) & (3ull << 34)) {
@@ -1078,16 +1053,6 @@ void __init plat_mem_setup(void)
 	cvmx_bootmem_unlock();
 #endif /* CONFIG_CRASH_DUMP */
 
-#ifdef CONFIG_CAVIUM_RESERVE32
-	/*
-	 * Now that we've allocated the kernel memory it is safe to
-	 * free the reserved region. We free it here so that builtin
-	 * drivers can use the memory.
-	 */
-	if (octeon_reserve32_memory)
-		cvmx_bootmem_free_named("CAVIUM_RESERVE32");
-#endif /* CONFIG_CAVIUM_RESERVE32 */
-
 	if (total == 0)
 		panic("Unable to allocate memory from "
 		      "cvmx_bootmem_phy_alloc");

arch/mips/cavium-octeon/smp.c

@@ -91,7 +91,7 @@ static irqreturn_t mailbox_interrupt(int irq, void *dev_id)
 	return IRQ_HANDLED;
 }
 
-/**
+/*
  * Cause the function described by call_data to be executed on the passed
  * cpu.	 When the function has finished, increment the finished field of
  * call_data.
@@ -115,7 +115,7 @@ static inline void octeon_send_ipi_mask(const struct cpumask *mask,
 		octeon_send_ipi_single(i, action);
 }
 
-/**
+/*
  * Detect available CPUs, populate cpu_possible_mask
  */
 static void octeon_smp_hotplug_setup(void)
@@ -202,9 +202,8 @@ int plat_post_relocation(long offset)
 }
 #endif /* CONFIG_RELOCATABLE */
 
-/**
+/*
  * Firmware CPU startup hook
- *
  */
 static int octeon_boot_secondary(int cpu, struct task_struct *idle)
 {
@@ -232,7 +231,7 @@ static int octeon_boot_secondary(int cpu, struct task_struct *idle)
 	return 0;
 }
 
-/**
+/*
  * After we've done initial boot, this function is called to allow the
  * board code to clean up state, if needed
  */
@@ -250,9 +249,8 @@ static void octeon_init_secondary(void)
 	octeon_irq_setup_secondary();
 }
 
-/**
+/*
  * Callout to firmware before smp_init
- *
  */
 static void __init octeon_prepare_cpus(unsigned int max_cpus)
 {
@@ -268,7 +266,7 @@ static void __init octeon_prepare_cpus(unsigned int max_cpus)
 	}
 }
 
-/**
+/*
  * Last chance for the board code to finish SMP initialization before
  * the CPU is "online".
  */

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

+CONFIG_FIT_IMAGE_FDT_MARDUK=y
+
+CONFIG_SCSI=y
+CONFIG_BLK_DEV_SD=y
+
+CONFIG_CLKSRC_PISTACHIO=y
+
+CONFIG_COMMON_CLK_PISTACHIO=y
+
+CONFIG_DMADEVICES=y
+CONFIG_IMG_MDC_DMA=y
+
+CONFIG_GPIOLIB=y
+CONFIG_GPIO_SYSFS=y
+CONFIG_GPIO_PCH=y
+
+CONFIG_I2C=y
+CONFIG_I2C_IMG=y
+
+CONFIG_MMC=y
+CONFIG_MMC_SDHCI=y
+CONFIG_MMC_DW=y
+CONFIG_MMC_DW_PLTFM=y
+
+CONFIG_NETDEVICES=y
+CONFIG_STMMAC_ETH=y
+CONFIG_STMMAC_PLATFORM=y
+
+CONFIG_PHY_PISTACHIO_USB=y
+
+CONFIG_PINCTRL=y
+CONFIG_PINCTRL_PISTACHIO=y
+
+CONFIG_RESET_PISTACHIO=y
+
+CONFIG_SERIAL_8250=y
+CONFIG_SERIAL_8250_CONSOLE=y
+CONFIG_SERIAL_OF_PLATFORM=y
+CONFIG_SERIAL_8250_DW=y
+
+CONFIG_SPI=y
+CONFIG_SRAM=y
+
+CONFIG_USB=y
+CONFIG_USB_EHCI_HCD=y
+CONFIG_USB_OHCI_HCD=y
+CONFIG_USB_DWC2=y
+
+CONFIG_CRYPTO_DEV_IMGTEC_HASH=y
+CONFIG_IMGPDC_WDT=y
+CONFIG_IR_IMG=y
+CONFIG_CC10001_ADC=y
+CONFIG_SND_SOC_IMG=y

arch/mips/configs/pistachio_defconfig

-# CONFIG_LOCALVERSION_AUTO is not set
-CONFIG_DEFAULT_HOSTNAME="localhost"
-CONFIG_SYSVIPC=y
-CONFIG_NO_HZ=y
-CONFIG_HIGH_RES_TIMERS=y
-CONFIG_PREEMPT_VOLUNTARY=y
-CONFIG_IKCONFIG=m
-CONFIG_IKCONFIG_PROC=y
-CONFIG_LOG_BUF_SHIFT=18
-CONFIG_CGROUPS=y
-CONFIG_CGROUP_SCHED=y
-CONFIG_CFS_BANDWIDTH=y
-CONFIG_CGROUP_FREEZER=y
-CONFIG_NAMESPACES=y
-CONFIG_USER_NS=y
-CONFIG_BLK_DEV_INITRD=y
-# CONFIG_RD_BZIP2 is not set
-# CONFIG_RD_LZMA is not set
-# CONFIG_RD_LZO is not set
-# CONFIG_RD_LZ4 is not set
-CONFIG_CC_OPTIMIZE_FOR_SIZE=y
-CONFIG_EMBEDDED=y
-# CONFIG_COMPAT_BRK is not set
-CONFIG_PROFILING=y
-CONFIG_MACH_PISTACHIO=y
-CONFIG_MIPS_CPS=y
-CONFIG_NR_CPUS=4
-CONFIG_PM_DEBUG=y
-CONFIG_PM_ADVANCED_DEBUG=y
-CONFIG_CPU_IDLE=y
-# CONFIG_MIPS_CPS_CPUIDLE is not set
-CONFIG_MODULES=y
-CONFIG_MODULE_UNLOAD=y
-CONFIG_MODULE_FORCE_UNLOAD=y
-CONFIG_PARTITION_ADVANCED=y
-# CONFIG_COMPACTION is not set
-CONFIG_DEFAULT_MMAP_MIN_ADDR=32768
-CONFIG_ZSMALLOC=y
-CONFIG_NET=y
-CONFIG_PACKET=y
-CONFIG_UNIX=y
-CONFIG_NET_KEY=m
-CONFIG_INET=y
-CONFIG_IP_MULTICAST=y
-CONFIG_IP_ADVANCED_ROUTER=y
-CONFIG_IP_MULTIPLE_TABLES=y
-CONFIG_IP_ROUTE_MULTIPATH=y
-CONFIG_IP_ROUTE_VERBOSE=y
-CONFIG_IP_PNP=y
-CONFIG_IP_PNP_DHCP=y
-CONFIG_IP_MROUTE=y
-CONFIG_IP_PIMSM_V1=y
-CONFIG_IP_PIMSM_V2=y
-CONFIG_SYN_COOKIES=y
-CONFIG_INET_AH=m
-CONFIG_INET_ESP=m
-CONFIG_INET_IPCOMP=m
-CONFIG_INET_XFRM_MODE_TRANSPORT=m
-CONFIG_INET_XFRM_MODE_TUNNEL=m
-CONFIG_INET_XFRM_MODE_BEET=m
-# CONFIG_INET_DIAG is not set
-CONFIG_TCP_CONG_ADVANCED=y
-# CONFIG_TCP_CONG_BIC is not set
-# CONFIG_TCP_CONG_WESTWOOD is not set
-# CONFIG_TCP_CONG_HTCP is not set
-CONFIG_TCP_CONG_LP=m
-CONFIG_TCP_MD5SIG=y
-CONFIG_INET6_AH=m
-CONFIG_INET6_ESP=m
-CONFIG_INET6_XFRM_MODE_TRANSPORT=m
-CONFIG_INET6_XFRM_MODE_TUNNEL=m
-CONFIG_INET6_XFRM_MODE_BEET=m
-CONFIG_IPV6_SIT=m
-CONFIG_NETWORK_SECMARK=y
-CONFIG_NETFILTER=y
-# CONFIG_BRIDGE_NETFILTER is not set
-CONFIG_NF_CONNTRACK=y
-CONFIG_NF_CT_NETLINK=y
-CONFIG_NETFILTER_XT_MARK=m
-CONFIG_NETFILTER_XT_TARGET_CLASSIFY=y
-CONFIG_NETFILTER_XT_TARGET_DSCP=y
-CONFIG_NETFILTER_XT_TARGET_NFLOG=y
-CONFIG_NETFILTER_XT_TARGET_NFQUEUE=y
-CONFIG_NETFILTER_XT_TARGET_SECMARK=y
-CONFIG_NETFILTER_XT_TARGET_TCPMSS=m
-CONFIG_NETFILTER_XT_MATCH_CONNTRACK=y
-CONFIG_NETFILTER_XT_MATCH_DSCP=y
-CONFIG_NETFILTER_XT_MATCH_POLICY=y
-CONFIG_NETFILTER_XT_MATCH_STATE=y
-CONFIG_NF_NAT_IPV4=m
-CONFIG_IP_NF_IPTABLES=y
-CONFIG_IP_NF_FILTER=y
-CONFIG_IP_NF_TARGET_REJECT=y
-CONFIG_IP_NF_MANGLE=y
-CONFIG_NF_NAT_IPV6=m
-CONFIG_IP6_NF_IPTABLES=m
-CONFIG_IP6_NF_MATCH_IPV6HEADER=m
-CONFIG_IP6_NF_FILTER=m
-CONFIG_IP6_NF_TARGET_REJECT=m
-CONFIG_IP6_NF_MANGLE=m
-CONFIG_BRIDGE=m
-CONFIG_VLAN_8021Q=m
-CONFIG_NET_SCHED=y
-CONFIG_NET_SCH_HTB=m
-CONFIG_NET_SCH_CODEL=m
-CONFIG_NET_SCH_FQ_CODEL=m
-CONFIG_NET_CLS_U32=m
-CONFIG_CLS_U32_MARK=y
-CONFIG_BT=m
-CONFIG_BT_RFCOMM=m
-CONFIG_BT_HCIBTUSB=m
-CONFIG_BT_HCIBFUSB=m
-CONFIG_BT_HCIVHCI=m
-CONFIG_CFG80211=m
-CONFIG_NL80211_TESTMODE=y
-CONFIG_CFG80211_DEBUGFS=y
-CONFIG_CFG80211_WEXT=y
-CONFIG_MAC80211=m
-CONFIG_MAC80211_LEDS=y
-CONFIG_MAC80211_DEBUGFS=y
-CONFIG_MAC80211_DEBUG_MENU=y
-CONFIG_MAC80211_VERBOSE_DEBUG=y
-CONFIG_RFKILL=y
-CONFIG_DEVTMPFS=y
-CONFIG_DEVTMPFS_MOUNT=y
-CONFIG_DEBUG_DEVRES=y
-CONFIG_CONNECTOR=y
-CONFIG_MTD=y
-CONFIG_MTD_BLOCK=y
-CONFIG_MTD_SPI_NOR=y
-CONFIG_MTD_UBI=y
-CONFIG_MTD_UBI_BLOCK=y
-CONFIG_ZRAM=m
-CONFIG_BLK_DEV_LOOP=y
-CONFIG_SCSI=y
-CONFIG_BLK_DEV_SD=y
-CONFIG_BLK_DEV_SR=m
-CONFIG_SCSI_SPI_ATTRS=y
-CONFIG_MD=y
-CONFIG_BLK_DEV_DM=y
-CONFIG_DM_CRYPT=y
-CONFIG_DM_VERITY=y
-CONFIG_NETDEVICES=y
-CONFIG_TUN=m
-CONFIG_VETH=m
-# CONFIG_NET_VENDOR_MARVELL is not set
-# CONFIG_NET_VENDOR_MICREL is not set
-# CONFIG_NET_VENDOR_MICROCHIP is not set
-# CONFIG_NET_VENDOR_NATSEMI is not set
-# CONFIG_NET_VENDOR_SEEQ is not set
-# CONFIG_NET_VENDOR_SMSC is not set
-CONFIG_STMMAC_ETH=y
-# CONFIG_NET_VENDOR_VIA is not set
-CONFIG_PPP=m
-CONFIG_PPP_ASYNC=m
-CONFIG_USB_PEGASUS=m
-CONFIG_USB_RTL8150=m
-CONFIG_USB_RTL8152=m
-CONFIG_USB_NET_DM9601=m
-CONFIG_USB_NET_SMSC75XX=m
-CONFIG_USB_NET_SMSC95XX=m
-CONFIG_USB_NET_MCS7830=m
-# CONFIG_USB_NET_CDC_SUBSET is not set
-# CONFIG_USB_NET_ZAURUS is not set
-CONFIG_HOSTAP=m
-CONFIG_HOSTAP_FIRMWARE=y
-CONFIG_HOSTAP_FIRMWARE_NVRAM=y
-CONFIG_LIBERTAS_THINFIRM=m
-CONFIG_RT2X00=m
-CONFIG_RT2800USB=m
-CONFIG_MAC80211_HWSIM=m
-CONFIG_USB_NET_RNDIS_WLAN=m
-CONFIG_INPUT_EVDEV=y
-# CONFIG_KEYBOARD_ATKBD is not set
-CONFIG_KEYBOARD_GPIO=y
-# CONFIG_INPUT_MOUSE is not set
-# CONFIG_SERIO is not set
-# CONFIG_VT is not set
-# CONFIG_LEGACY_PTYS is not set
-CONFIG_SERIAL_8250=y
-# CONFIG_SERIAL_8250_DEPRECATED_OPTIONS is not set
-CONFIG_SERIAL_8250_CONSOLE=y
-CONFIG_SERIAL_8250_DW=y
-CONFIG_SERIAL_OF_PLATFORM=y
-CONFIG_HW_RANDOM=y
-CONFIG_TCG_TPM=y
-CONFIG_I2C=y
-CONFIG_I2C_CHARDEV=m
-CONFIG_I2C_IMG=y
-CONFIG_I2C_STUB=m
-CONFIG_SPI=y
-CONFIG_SPI_BITBANG=m
-CONFIG_SPI_IMG_SPFI=y
-CONFIG_SPI_SPIDEV=y
-CONFIG_DEBUG_GPIO=y
-CONFIG_GPIO_SYSFS=y
-CONFIG_POWER_SUPPLY=y
-CONFIG_THERMAL=y
-CONFIG_WATCHDOG=y
-CONFIG_IMGPDC_WDT=y
-CONFIG_REGULATOR_FIXED_VOLTAGE=y
-CONFIG_REGULATOR_GPIO=y
-CONFIG_RC_CORE=y
-CONFIG_RC_DEVICES=y
-CONFIG_IR_IMG=y
-CONFIG_IR_IMG_NEC=y
-CONFIG_IR_IMG_JVC=y
-CONFIG_IR_IMG_SONY=y
-CONFIG_IR_IMG_SHARP=y
-CONFIG_IR_IMG_SANYO=y
-CONFIG_IR_IMG_RC5=y
-CONFIG_IR_IMG_RC6=y
-CONFIG_MEDIA_SUPPORT=y
-CONFIG_FB=y
-CONFIG_FB_MODE_HELPERS=y
-# CONFIG_LCD_CLASS_DEVICE is not set
-CONFIG_BACKLIGHT_CLASS_DEVICE=y
-CONFIG_SOUND=y
-CONFIG_SND=y
-CONFIG_SND_HRTIMER=m
-CONFIG_SND_DYNAMIC_MINORS=y
-CONFIG_SND_SEQUENCER=m
-CONFIG_SND_SEQ_DUMMY=m
-# CONFIG_SND_SPI is not set
-CONFIG_SND_USB_AUDIO=m
-CONFIG_USB=y
-CONFIG_USB_ANNOUNCE_NEW_DEVICES=y
-# CONFIG_USB_DEFAULT_PERSIST is not set
-CONFIG_USB_MON=y
-CONFIG_USB_EHCI_HCD=y
-CONFIG_USB_EHCI_ROOT_HUB_TT=y
-CONFIG_USB_ACM=y
-CONFIG_USB_STORAGE=y
-CONFIG_USB_DWC2=y
-CONFIG_USB_SERIAL=y
-CONFIG_USB_SERIAL_GENERIC=y
-CONFIG_USB_SERIAL_CP210X=m
-CONFIG_USB_SERIAL_FTDI_SIO=m
-CONFIG_USB_SERIAL_KEYSPAN=m
-CONFIG_USB_SERIAL_PL2303=m
-CONFIG_USB_SERIAL_OTI6858=m
-CONFIG_USB_SERIAL_QUALCOMM=m
-CONFIG_USB_SERIAL_SIERRAWIRELESS=m
-CONFIG_USB_SERIAL_OPTION=m
-CONFIG_MMC=y
-CONFIG_MMC_BLOCK_MINORS=16
-CONFIG_MMC_TEST=m
-CONFIG_MMC_DW=y
-CONFIG_NEW_LEDS=y
-CONFIG_LEDS_CLASS=y
-CONFIG_RTC_CLASS=y
-CONFIG_DMADEVICES=y
-CONFIG_IMG_MDC_DMA=y
-CONFIG_STAGING=y
-CONFIG_ASHMEM=y
-# CONFIG_IOMMU_SUPPORT is not set
-CONFIG_MEMORY=y
-CONFIG_IIO=y
-CONFIG_CC10001_ADC=y
-CONFIG_PWM=y
-CONFIG_PWM_IMG=y
-CONFIG_PHY_PISTACHIO_USB=y
-CONFIG_ANDROID=y
-CONFIG_EXT4_FS=y
-CONFIG_EXT4_FS_POSIX_ACL=y
-CONFIG_EXT4_FS_SECURITY=y
-# CONFIG_DNOTIFY is not set
-CONFIG_FUSE_FS=m
-CONFIG_ISO9660_FS=m
-CONFIG_JOLIET=y
-CONFIG_ZISOFS=y
-CONFIG_UDF_FS=m
-CONFIG_VFAT_FS=m
-CONFIG_TMPFS=y
-CONFIG_TMPFS_POSIX_ACL=y
-CONFIG_ECRYPT_FS=y
-CONFIG_HFSPLUS_FS=m
-CONFIG_UBIFS_FS=y
-CONFIG_SQUASHFS=y
-CONFIG_SQUASHFS_FILE_DIRECT=y
-CONFIG_SQUASHFS_LZO=y
-CONFIG_PSTORE=y
-CONFIG_PSTORE_CONSOLE=y
-CONFIG_PSTORE_RAM=y
-CONFIG_NFS_FS=y
-CONFIG_ROOT_NFS=y
-CONFIG_NLS_DEFAULT="utf8"
-CONFIG_NLS_CODEPAGE_437=m
-CONFIG_NLS_ASCII=m
-CONFIG_NLS_ISO8859_1=m
-CONFIG_SECURITY=y
-CONFIG_SECURITY_NETWORK=y
-CONFIG_SECURITY_YAMA=y
-CONFIG_CRYPTO_AUTHENC=y
-CONFIG_CRYPTO_HMAC=y
-CONFIG_CRYPTO_SHA1=y
-CONFIG_CRYPTO_SHA256=y
-CONFIG_CRYPTO_SHA512=m
-CONFIG_CRYPTO_ARC4=y
-CONFIG_CRYPTO_DES=y
-CONFIG_CRC_CCITT=y
-CONFIG_CRC_T10DIF=m
-CONFIG_CRC7=m
-# CONFIG_XZ_DEC_X86 is not set
-CONFIG_PRINTK_TIME=y
-CONFIG_DEBUG_INFO=y
-CONFIG_MAGIC_SYSRQ=y
-CONFIG_MAGIC_SYSRQ_DEFAULT_ENABLE=0
-# CONFIG_SCHED_DEBUG is not set
-CONFIG_SCHEDSTATS=y
-CONFIG_DEBUG_SPINLOCK=y
-CONFIG_DEBUG_CREDENTIALS=y
-CONFIG_FUNCTION_TRACER=y
-CONFIG_BLK_DEV_IO_TRACE=y
-CONFIG_LKDTM=y
-CONFIG_TEST_UDELAY=m

arch/mips/generic/Kconfig

@@ -58,6 +58,12 @@ config FIT_IMAGE_FDT_BOSTON
 	  enable this if you wish to boot on a MIPS Boston board, as it is
 	  expected by the bootloader.
 
+config FIT_IMAGE_FDT_MARDUK
+	bool "Include FDT for IMG Pistachio Marduk (CI40) boards"
+	help
+	  Enable this to include the FDT for the IMG Pistachio Marduk (CI40)
+	  from Imagination Technologies in the FIT kernel image.
+
 config FIT_IMAGE_FDT_NI169445
 	bool "Include FDT for NI 169445"
 	help

arch/mips/generic/Platform

@@ -24,3 +24,4 @@ its-$(CONFIG_FIT_IMAGE_FDT_LUTON)	+= board-luton.its.S
 its-$(CONFIG_FIT_IMAGE_FDT_JAGUAR2)	+= board-jaguar2.its.S
 its-$(CONFIG_FIT_IMAGE_FDT_SERVAL)	+= board-serval.its.S
 its-$(CONFIG_FIT_IMAGE_FDT_XILFPGA)	+= board-xilfpga.its.S
+its-$(CONFIG_FIT_IMAGE_FDT_MARDUK)	+= board-marduk.its.S

arch/mips/generic/board-ingenic.c

@@ -7,6 +7,8 @@
  * Copyright (C) 2020 Paul Cercueil <paul@crapouillou.net>
  */
 
+#include <linux/clk.h>
+#include <linux/of.h>
 #include <linux/of_address.h>
 #include <linux/of_fdt.h>
 #include <linux/pm.h>
@@ -21,6 +23,10 @@
 static __init char *ingenic_get_system_type(unsigned long machtype)
 {
 	switch (machtype) {
+	case MACH_INGENIC_X2100:
+		return "X2100";
+	case MACH_INGENIC_X2000H:
+		return "X2000H";
 	case MACH_INGENIC_X2000E:
 		return "X2000E";
 	case MACH_INGENIC_X2000:
@@ -37,8 +43,18 @@ static __init char *ingenic_get_system_type(unsigned long machtype)
 		return "JZ4775";
 	case MACH_INGENIC_JZ4770:
 		return "JZ4770";
+	case MACH_INGENIC_JZ4760B:
+		return "JZ4760B";
+	case MACH_INGENIC_JZ4760:
+		return "JZ4760";
+	case MACH_INGENIC_JZ4755:
+		return "JZ4755";
+	case MACH_INGENIC_JZ4750:
+		return "JZ4750";
 	case MACH_INGENIC_JZ4725B:
 		return "JZ4725B";
+	case MACH_INGENIC_JZ4730:
+		return "JZ4730";
 	default:
 		return "JZ4740";
 	}
@@ -61,8 +77,13 @@ static __init const void *ingenic_fixup_fdt(const void *fdt, const void *match_d
 }
 
 static const struct of_device_id ingenic_of_match[] __initconst = {
+	{ .compatible = "ingenic,jz4730", .data = (void *)MACH_INGENIC_JZ4730 },
 	{ .compatible = "ingenic,jz4740", .data = (void *)MACH_INGENIC_JZ4740 },
 	{ .compatible = "ingenic,jz4725b", .data = (void *)MACH_INGENIC_JZ4725B },
+	{ .compatible = "ingenic,jz4750", .data = (void *)MACH_INGENIC_JZ4750 },
+	{ .compatible = "ingenic,jz4755", .data = (void *)MACH_INGENIC_JZ4755 },
+	{ .compatible = "ingenic,jz4760", .data = (void *)MACH_INGENIC_JZ4760 },
+	{ .compatible = "ingenic,jz4760b", .data = (void *)MACH_INGENIC_JZ4760B },
 	{ .compatible = "ingenic,jz4770", .data = (void *)MACH_INGENIC_JZ4770 },
 	{ .compatible = "ingenic,jz4775", .data = (void *)MACH_INGENIC_JZ4775 },
 	{ .compatible = "ingenic,jz4780", .data = (void *)MACH_INGENIC_JZ4780 },
@@ -71,6 +92,8 @@ static const struct of_device_id ingenic_of_match[] __initconst = {
 	{ .compatible = "ingenic,x1830", .data = (void *)MACH_INGENIC_X1830 },
 	{ .compatible = "ingenic,x2000", .data = (void *)MACH_INGENIC_X2000 },
 	{ .compatible = "ingenic,x2000e", .data = (void *)MACH_INGENIC_X2000E },
+	{ .compatible = "ingenic,x2000h", .data = (void *)MACH_INGENIC_X2000H },
+	{ .compatible = "ingenic,x2100", .data = (void *)MACH_INGENIC_X2100 },
 	{}
 };
 
@@ -108,10 +131,36 @@ static const struct platform_suspend_ops ingenic_pm_ops __maybe_unused = {
 
 static int __init ingenic_pm_init(void)
 {
+	struct device_node *cpu_node;
+	struct clk *cpu0_clk;
+	int ret;
+
 	if (boot_cpu_type() == CPU_XBURST) {
 		if (IS_ENABLED(CONFIG_PM_SLEEP))
 			suspend_set_ops(&ingenic_pm_ops);
 		_machine_halt = ingenic_halt;
+
+		/*
+		 * Unconditionally enable the clock for the first CPU.
+		 * This makes sure that the PLL that feeds the CPU won't be
+		 * stopped while the kernel is running.
+		 */
+		cpu_node = of_get_cpu_node(0, NULL);
+		if (!cpu_node) {
+			pr_err("Unable to get CPU node\n");
+		} else {
+			cpu0_clk = of_clk_get(cpu_node, 0);
+			if (IS_ERR(cpu0_clk)) {
+				pr_err("Unable to get CPU0 clock\n");
+				return PTR_ERR(cpu0_clk);
+			}
+
+			ret = clk_prepare_enable(cpu0_clk);
+			if (ret) {
+				pr_err("Unable to enable CPU0 clock\n");
+				return ret;
+			}
+		}
 	}
 
 	return 0;

arch/mips/generic/board-marduk.its.S

+/ {
+	images {
+		fdt-marduk {
+			description = "img,pistachio-marduk Device Tree";
+			data = /incbin/("boot/dts/img/pistachio_marduk.dtb");
+			type = "flat_dt";
+			arch = "mips";
+			compression = "none";
+			hash {
+				algo = "sha1";
+			};
+		};
+	};
+
+	configurations {
+		conf-marduk {
+			description = "Marduk Linux kernel";
+			kernel = "kernel";
+			fdt = "fdt-marduk";
+		};
+	};
+};

arch/mips/generic/board-ocelot.c

@@ -26,13 +26,13 @@ static __init bool ocelot_detect(void)
 	tlb_probe_hazard();
 	idx = read_c0_index();
 	if (idx < 0)
-		return 0;
+		return false;
 
 	/* A TLB entry exists, lets assume its usable and check the CHIP ID */
 	rev = __raw_readl((void __iomem *)DEVCPU_GCB_CHIP_REGS_CHIP_ID);
 
 	if ((rev & CHIP_ID_PART_ID) != OCELOT_PART_ID)
-		return 0;
+		return false;
 
 	/* Copy command line from bootloader early for Initrd detection */
 	if (fw_arg0 < 10 && (fw_arg1 & 0xFFF00000) == 0x80000000) {
@@ -44,7 +44,7 @@ static __init bool ocelot_detect(void)
 			strcpy(arcs_cmdline, prom_argv[1]);
 	}
 
-	return 1;
+	return true;
 }
 
 static void __init ocelot_earlyprintk_init(void)

arch/mips/include/asm/atomic.h

@@ -206,7 +206,7 @@ ATOMIC_OPS(atomic64, xor, s64, ^=, xor, lld, scd)
  * The function returns the old value of @v minus @i.
  */
 #define ATOMIC_SIP_OP(pfx, type, op, ll, sc)				\
-static __inline__ int arch_##pfx##_sub_if_positive(type i, pfx##_t * v)	\
+static __inline__ type arch_##pfx##_sub_if_positive(type i, pfx##_t * v)	\
 {									\
 	type temp, result;						\
 									\

arch/mips/include/asm/bootinfo.h

@@ -75,6 +75,7 @@ enum ingenic_machine_type {
 	MACH_INGENIC_JZ4750,
 	MACH_INGENIC_JZ4755,
 	MACH_INGENIC_JZ4760,
+	MACH_INGENIC_JZ4760B,
 	MACH_INGENIC_JZ4770,
 	MACH_INGENIC_JZ4775,
 	MACH_INGENIC_JZ4780,
@@ -83,6 +84,8 @@ enum ingenic_machine_type {
 	MACH_INGENIC_X1830,
 	MACH_INGENIC_X2000,
 	MACH_INGENIC_X2000E,
+	MACH_INGENIC_X2000H,
+	MACH_INGENIC_X2100,
 };
 
 extern char *system_type;

arch/mips/include/asm/cpu.h

@@ -46,8 +46,8 @@
 #define PRID_COMP_NETLOGIC	0x0c0000
 #define PRID_COMP_CAVIUM	0x0d0000
 #define PRID_COMP_LOONGSON	0x140000
-#define PRID_COMP_INGENIC_13	0x130000	/* X2000 */
-#define PRID_COMP_INGENIC_D0	0xd00000	/* JZ4740, JZ4750, X1830 */
+#define PRID_COMP_INGENIC_13	0x130000	/* X2000, X2100 */
+#define PRID_COMP_INGENIC_D0	0xd00000	/* JZ4730, JZ4740, JZ4750, JZ4755, JZ4760, X1830 */
 #define PRID_COMP_INGENIC_D1	0xd10000	/* JZ4770, JZ4775, X1000 */
 #define PRID_COMP_INGENIC_E1	0xe10000	/* JZ4780 */
 

arch/mips/kernel/mips-mt-fpaff.c

@@ -76,13 +76,13 @@ asmlinkage long mipsmt_sys_sched_setaffinity(pid_t pid, unsigned int len,
 	if (copy_from_user(&new_mask, user_mask_ptr, sizeof(new_mask)))
 		return -EFAULT;
 
-	get_online_cpus();
+	cpus_read_lock();
 	rcu_read_lock();
 
 	p = find_process_by_pid(pid);
 	if (!p) {
 		rcu_read_unlock();
-		put_online_cpus();
+		cpus_read_unlock();
 		return -ESRCH;
 	}
 
@@ -147,7 +147,7 @@ asmlinkage long mipsmt_sys_sched_setaffinity(pid_t pid, unsigned int len,
 	free_cpumask_var(cpus_allowed);
 out_put_task:
 	put_task_struct(p);
-	put_online_cpus();
+	cpus_read_unlock();
 	return retval;
 }
 
@@ -166,7 +166,7 @@ asmlinkage long mipsmt_sys_sched_getaffinity(pid_t pid, unsigned int len,
 	if (len < real_len)
 		return -EINVAL;
 
-	get_online_cpus();
+	cpus_read_lock();
 	rcu_read_lock();
 
 	retval = -ESRCH;
@@ -182,7 +182,7 @@ asmlinkage long mipsmt_sys_sched_getaffinity(pid_t pid, unsigned int len,
 
 out_unlock:
 	rcu_read_unlock();
-	put_online_cpus();
+	cpus_read_unlock();
 	if (retval)
 		return retval;
 	if (copy_to_user(user_mask_ptr, &mask, real_len))

arch/mips/kernel/process.c

@@ -859,10 +859,10 @@ int mips_set_process_fp_mode(struct task_struct *task, unsigned int value)
 	 * scheduled in then it will already have picked up the new FP mode
 	 * whilst doing so.
 	 */
-	get_online_cpus();
+	cpus_read_lock();
 	for_each_cpu_and(cpu, &process_cpus, cpu_online_mask)
 		work_on_cpu(cpu, prepare_for_fp_mode_switch, NULL);
-	put_online_cpus();
+	cpus_read_unlock();
 
 	return 0;
 }

arch/mips/kernel/uprobes.c

@@ -75,7 +75,7 @@ bool is_trap_insn(uprobe_opcode_t *insn)
 		case tlt_op:
 		case tltu_op:
 		case tne_op:
-			return 1;
+			return true;
 		}
 		break;
 
@@ -87,12 +87,12 @@ bool is_trap_insn(uprobe_opcode_t *insn)
 		case tlti_op:
 		case tltiu_op:
 		case tnei_op:
-			return 1;
+			return true;
 		}
 		break;
 	}
 
-	return 0;
+	return false;
 }
 
 #define UPROBE_TRAP_NR	ULONG_MAX
@@ -254,9 +254,9 @@ unsigned long uprobe_get_swbp_addr(struct pt_regs *regs)
  * See if the instruction can be emulated.
  * Returns true if instruction was emulated, false otherwise.
  *
- * For now we always emulate so this function just returns 0.
+ * For now we always emulate so this function just returns false.
  */
 bool arch_uprobe_skip_sstep(struct arch_uprobe *auprobe, struct pt_regs *regs)
 {
-	return 0;
+	return false;
 }

arch/mips/kvm/Makefile

@@ -2,21 +2,18 @@
 # Makefile for KVM support for MIPS
 #
 
-common-objs-y = $(addprefix ../../../virt/kvm/, kvm_main.o coalesced_mmio.o eventfd.o binary_stats.o)
+ccflags-y += -Ivirt/kvm -Iarch/mips/kvm
 
-EXTRA_CFLAGS += -Ivirt/kvm -Iarch/mips/kvm
+kvm-y := $(addprefix ../../../virt/kvm/, kvm_main.o coalesced_mmio.o eventfd.o binary_stats.o)
+kvm-$(CONFIG_CPU_HAS_MSA) += msa.o
 
-common-objs-$(CONFIG_CPU_HAS_MSA) += msa.o
-
-kvm-objs := $(common-objs-y) mips.o emulate.o entry.o \
+kvm-y +=    mips.o emulate.o entry.o \
 	    interrupt.o stats.o \
 	    fpu.o
-kvm-objs += hypcall.o
-kvm-objs += mmu.o
-ifdef CONFIG_CPU_LOONGSON64
-kvm-objs += loongson_ipi.o
-endif
+kvm-y += hypcall.o
+kvm-y += mmu.o
+kvm-$(CONFIG_CPU_LOONGSON64) += loongson_ipi.o
 
-kvm-objs		+= vz.o
+kvm-y		+= vz.o
 obj-$(CONFIG_KVM)	+= kvm.o
 obj-y			+= callback.o tlb.o

arch/mips/kvm/mmu.c

@@ -442,7 +442,7 @@ static int kvm_mips_mkold_gpa_pt(struct kvm *kvm, gfn_t start_gfn,
 bool kvm_unmap_gfn_range(struct kvm *kvm, struct kvm_gfn_range *range)
 {
 	kvm_mips_flush_gpa_pt(kvm, range->start, range->end);
-	return 1;
+	return true;
 }
 
 bool kvm_set_spte_gfn(struct kvm *kvm, struct kvm_gfn_range *range)
@@ -486,7 +486,7 @@ bool kvm_test_age_gfn(struct kvm *kvm, struct kvm_gfn_range *range)
 	pte_t *gpa_pte = kvm_mips_pte_for_gpa(kvm, NULL, gpa);
 
 	if (!gpa_pte)
-		return 0;
+		return false;
 	return pte_young(*gpa_pte);
 }
 

arch/mips/loongson2ef/common/Makefile

@@ -4,12 +4,14 @@
 #
 
 obj-y += setup.o init.o env.o time.o reset.o irq.o \
-    bonito-irq.o mem.o machtype.o platform.o serial.o
+    bonito-irq.o mem.o machtype.o platform.o
 obj-$(CONFIG_PCI) += pci.o
 
 #
 # Serial port support
 #
+obj-$(CONFIG_LOONGSON_UART_BASE) += serial.o
+obj-$(CONFIG_EARLY_PRINTK) += serial.o
 obj-$(CONFIG_LOONGSON_UART_BASE) += uart_base.o
 obj-$(CONFIG_LOONGSON_MC146818) += rtc.o
 

arch/mips/mm/c-octeon.c

@@ -30,7 +30,7 @@
 unsigned long long cache_err_dcache[NR_CPUS];
 EXPORT_SYMBOL_GPL(cache_err_dcache);
 
-/**
+/*
  * Octeon automatically flushes the dcache on tlb changes, so
  * from Linux's viewpoint it acts much like a physically
  * tagged cache. No flushing is needed
@@ -56,8 +56,8 @@ static void local_octeon_flush_icache_range(unsigned long start,
 }
 
 /**
- * Flush caches as necessary for all cores affected by a
- * vma. If no vma is supplied, all cores are flushed.
+ * octeon_flush_icache_all_cores -  Flush caches as necessary for all cores
+ * affected by a vma. If no vma is supplied, all cores are flushed.
  *
  * @vma:    VMA to flush or NULL to flush all icaches.
  */
@@ -92,7 +92,7 @@ static void octeon_flush_icache_all_cores(struct vm_area_struct *vma)
 }
 
 
-/**
+/*
  * Called to flush the icache on all cores
  */
 static void octeon_flush_icache_all(void)
@@ -102,8 +102,7 @@ static void octeon_flush_icache_all(void)
 
 
 /**
- * Called to flush all memory associated with a memory
- * context.
+ * octeon_flush_cache_mm - flush all memory associated with a memory context.
  *
  * @mm:	    Memory context to flush
  */
@@ -116,7 +115,7 @@ static void octeon_flush_cache_mm(struct mm_struct *mm)
 }
 
 
-/**
+/*
  * Flush a range of kernel addresses out of the icache
  *
  */
@@ -127,11 +126,11 @@ static void octeon_flush_icache_range(unsigned long start, unsigned long end)
 
 
 /**
- * Flush a range out of a vma
+ * octeon_flush_cache_range - Flush a range out of a vma
  *
  * @vma:    VMA to flush
- * @start:
- * @end:
+ * @start:  beginning address for flush
+ * @end:    ending address for flush
  */
 static void octeon_flush_cache_range(struct vm_area_struct *vma,
 				     unsigned long start, unsigned long end)
@@ -142,11 +141,11 @@ static void octeon_flush_cache_range(struct vm_area_struct *vma,
 
 
 /**
- * Flush a specific page of a vma
+ * octeon_flush_cache_page - Flush a specific page of a vma
  *
  * @vma:    VMA to flush page for
  * @page:   Page to flush
- * @pfn:
+ * @pfn:    Page frame number
  */
 static void octeon_flush_cache_page(struct vm_area_struct *vma,
 				    unsigned long page, unsigned long pfn)
@@ -160,7 +159,7 @@ static void octeon_flush_kernel_vmap_range(unsigned long vaddr, int size)
 	BUG();
 }
 
-/**
+/*
  * Probe Octeon's caches
  *
  */
@@ -256,7 +255,7 @@ static void  octeon_cache_error_setup(void)
 	set_handler(0x100, &except_vec2_octeon, 0x80);
 }
 
-/**
+/*
  * Setup the Octeon cache flush routines
  *
  */
@@ -341,7 +340,7 @@ asmlinkage void cache_parity_error_octeon_recoverable(void)
 	co_cache_error_call_notifiers(0);
 }
 
-/**
+/*
  * Called when the the exception is not recoverable
  */
 

arch/mips/mti-malta/malta-dtshim.c

@@ -22,7 +22,7 @@
 #define  ROCIT_CONFIG_GEN1_MEMMAP_SHIFT	8
 #define  ROCIT_CONFIG_GEN1_MEMMAP_MASK	(0xf << 8)
 
-static unsigned char fdt_buf[16 << 10] __initdata;
+static unsigned char fdt_buf[16 << 10] __initdata __aligned(8);
 
 /* determined physical memory size, not overridden by command line args	 */
 extern unsigned long physical_memsize;

arch/mips/netlogic/xlr/fmn-config.c

@@ -103,18 +103,19 @@ static void check_credit_distribution(void)
 }
 
 /**
- * Configure bucket size and credits for a device. 'size' is the size of
- * the buckets for the device. This size is distributed among all the CPUs
- * so that all of them can send messages to the device.
- *
- * The device is also given 'cpu_credits' to send messages to the CPUs
- *
+ * setup_fmn_cc -  Configure bucket size and credits for a device.
  * @dev_info: FMN information structure for each devices
  * @start_stn_id: Starting station id of dev_info
  * @end_stn_id: End station id of dev_info
  * @num_buckets: Total number of buckets for den_info
  * @cpu_credits: Allowed credits to cpu for each devices pointing by dev_info
  * @size: Size of the each buckets in the device station
+ *
+ * 'size' is the size of the buckets for the device. This size is
+ * distributed among all the CPUs
+ * so that all of them can send messages to the device.
+ *
+ * The device is also given 'cpu_credits' to send messages to the CPUs
  */
 static void setup_fmn_cc(struct xlr_fmn_info *dev_info, int start_stn_id,
 		int end_stn_id, int num_buckets, int cpu_credits, int size)
@@ -174,6 +175,8 @@ static void setup_cpu_fmninfo(struct xlr_fmn_info *cpu, int num_core)
 }
 
 /**
+ * xlr_board_info_setup - Setup FMN details
+ *
  * Setup the FMN details for each devices according to the device available
  * in each variant of XLR/XLS processor
  */

arch/mips/pistachio/Kconfig

-# SPDX-License-Identifier: GPL-2.0
-config PISTACHIO_GPTIMER_CLKSRC
-	bool "Enable General Purpose Timer based clocksource"
-	depends on MACH_PISTACHIO
-	select CLKSRC_PISTACHIO
-	select MIPS_EXTERNAL_TIMER
-	help
-	  This option enables a clocksource driver based on a Pistachio
-	  SoC General Purpose external timer.
-
-	  If you want to enable the CPUFreq, you need to enable
-	  this option.
-
-	  If you don't want to enable CPUFreq, you can leave this disabled.

arch/mips/pistachio/Makefile

-# SPDX-License-Identifier: GPL-2.0-only
-obj-y	+= init.o irq.o time.o

arch/mips/pistachio/Platform

-#
-# IMG Pistachio SoC
-#
-load-$(CONFIG_MACH_PISTACHIO)		+= 0xffffffff80400000
-zload-$(CONFIG_MACH_PISTACHIO)		+= 0xffffffff81000000
-all-$(CONFIG_MACH_PISTACHIO)		:= uImage.gz

arch/mips/pistachio/init.c

-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * Pistachio platform setup
- *
- * Copyright (C) 2014 Google, Inc.
- * Copyright (C) 2016 Imagination Technologies
- */
-
-#include <linux/init.h>
-#include <linux/io.h>
-#include <linux/kernel.h>
-#include <linux/of_address.h>
-#include <linux/of_fdt.h>
-
-#include <asm/cacheflush.h>
-#include <asm/fw/fw.h>
-#include <asm/mips-boards/generic.h>
-#include <asm/mips-cps.h>
-#include <asm/prom.h>
-#include <asm/smp-ops.h>
-#include <asm/traps.h>
-
-/*
- * Core revision register decoding
- * Bits 23 to 20: Major rev
- * Bits 15 to 8: Minor rev
- * Bits 7 to 0: Maintenance rev
- */
-#define PISTACHIO_CORE_REV_REG	0xB81483D0
-#define PISTACHIO_CORE_REV_A1	0x00100006
-#define PISTACHIO_CORE_REV_B0	0x00100106
-
-const char *get_system_type(void)
-{
-	u32 core_rev;
-	const char *sys_type;
-
-	core_rev = __raw_readl((const void *)PISTACHIO_CORE_REV_REG);
-
-	switch (core_rev) {
-	case PISTACHIO_CORE_REV_B0:
-		sys_type = "IMG Pistachio SoC (B0)";
-		break;
-
-	case PISTACHIO_CORE_REV_A1:
-		sys_type = "IMG Pistachio SoC (A1)";
-		break;
-
-	default:
-		sys_type = "IMG Pistachio SoC";
-		break;
-	}
-
-	return sys_type;
-}
-
-void __init *plat_get_fdt(void)
-{
-	if (fw_arg0 != -2)
-		panic("Device-tree not present");
-	return (void *)fw_arg1;
-}
-
-void __init plat_mem_setup(void)
-{
-	__dt_setup_arch(plat_get_fdt());
-}
-
-#define DEFAULT_CPC_BASE_ADDR	0x1bde0000
-#define DEFAULT_CDMM_BASE_ADDR	0x1bdd0000
-
-phys_addr_t mips_cpc_default_phys_base(void)
-{
-	return DEFAULT_CPC_BASE_ADDR;
-}
-
-phys_addr_t mips_cdmm_phys_base(void)
-{
-	return DEFAULT_CDMM_BASE_ADDR;
-}
-
-static void __init mips_nmi_setup(void)
-{
-	void *base;
-
-	base = cpu_has_veic ?
-		(void *)(CAC_BASE + 0xa80) :
-		(void *)(CAC_BASE + 0x380);
-	memcpy(base, except_vec_nmi, 0x80);
-	flush_icache_range((unsigned long)base,
-			   (unsigned long)base + 0x80);
-}
-
-static void __init mips_ejtag_setup(void)
-{
-	void *base;
-	extern char except_vec_ejtag_debug[];
-
-	base = cpu_has_veic ?
-		(void *)(CAC_BASE + 0xa00) :
-		(void *)(CAC_BASE + 0x300);
-	memcpy(base, except_vec_ejtag_debug, 0x80);
-	flush_icache_range((unsigned long)base,
-			   (unsigned long)base + 0x80);
-}
-
-void __init prom_init(void)
-{
-	board_nmi_handler_setup = mips_nmi_setup;
-	board_ejtag_handler_setup = mips_ejtag_setup;
-
-	mips_cm_probe();
-	mips_cpc_probe();
-	register_cps_smp_ops();
-
-	pr_info("SoC Type: %s\n", get_system_type());
-}
-
-void __init device_tree_init(void)
-{
-	if (!initial_boot_params)
-		return;
-
-	unflatten_and_copy_device_tree();
-}

arch/mips/pistachio/irq.c

-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * Pistachio IRQ setup
- *
- * Copyright (C) 2014 Google, Inc.
- */
-
-#include <linux/init.h>
-#include <linux/irqchip.h>
-#include <linux/kernel.h>
-
-#include <asm/cpu-features.h>
-#include <asm/irq_cpu.h>
-
-void __init arch_init_irq(void)
-{
-	pr_info("EIC is %s\n", cpu_has_veic ? "on" : "off");
-	pr_info("VINT is %s\n", cpu_has_vint ? "on" : "off");
-
-	if (!cpu_has_veic)
-		mips_cpu_irq_init();
-
-	irqchip_init();
-}

arch/mips/pistachio/time.c

-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * Pistachio clocksource/timer setup
- *
- * Copyright (C) 2014 Google, Inc.
- */
-
-#include <linux/clk.h>
-#include <linux/clocksource.h>
-#include <linux/init.h>
-#include <linux/of.h>
-#include <linux/of_clk.h>
-
-#include <asm/mips-cps.h>
-#include <asm/time.h>
-
-unsigned int get_c0_compare_int(void)
-{
-	return gic_get_c0_compare_int();
-}
-
-int get_c0_perfcount_int(void)
-{
-	return gic_get_c0_perfcount_int();
-}
-EXPORT_SYMBOL_GPL(get_c0_perfcount_int);
-
-int get_c0_fdc_int(void)
-{
-	return gic_get_c0_fdc_int();
-}
-
-void __init plat_time_init(void)
-{
-	struct device_node *np;
-	struct clk *clk;
-
-	of_clk_init(NULL);
-	timer_probe();
-
-	np = of_get_cpu_node(0, NULL);
-	if (!np) {
-		pr_err("Failed to get CPU node\n");
-		return;
-	}
-
-	clk = of_clk_get(np, 0);
-	if (IS_ERR(clk)) {
-		pr_err("Failed to get CPU clock: %ld\n", PTR_ERR(clk));
-		return;
-	}
-
-	mips_hpt_frequency = clk_get_rate(clk) / 2;
-	clk_put(clk);
-}

drivers/clk/Kconfig

@@ -403,6 +403,7 @@ source "drivers/clk/mediatek/Kconfig"
 source "drivers/clk/meson/Kconfig"
 source "drivers/clk/mstar/Kconfig"
 source "drivers/clk/mvebu/Kconfig"
+source "drivers/clk/pistachio/Kconfig"
 source "drivers/clk/qcom/Kconfig"
 source "drivers/clk/ralink/Kconfig"
 source "drivers/clk/renesas/Kconfig"

drivers/clk/Makefile

@@ -97,7 +97,7 @@ obj-y					+= mstar/
 obj-y					+= mvebu/
 obj-$(CONFIG_ARCH_MXS)			+= mxs/
 obj-$(CONFIG_COMMON_CLK_NXP)		+= nxp/
-obj-$(CONFIG_MACH_PISTACHIO)		+= pistachio/
+obj-$(CONFIG_COMMON_CLK_PISTACHIO)	+= pistachio/
 obj-$(CONFIG_COMMON_CLK_PXA)		+= pxa/
 obj-$(CONFIG_COMMON_CLK_QCOM)		+= qcom/
 obj-y					+= ralink/

drivers/clk/pistachio/Kconfig

+# SPDX-License-Identifier: GPL-2.0
+
+config COMMON_CLK_PISTACHIO
+	bool "Support for IMG Pistachio SoC clock controllers"
+	depends on MIPS || COMPILE_TEST
+	help
+	  Support for the IMG Pistachio SoC clock controller.
+	  Say Y if you want to include clock support.

drivers/clocksource/Kconfig

@@ -234,8 +234,9 @@ config CLKSRC_LPC32XX
 	  Support for the LPC32XX clocksource.
 
 config CLKSRC_PISTACHIO
-	bool "Clocksource for Pistachio SoC" if COMPILE_TEST
+	bool "Clocksource for Pistachio SoC"
 	depends on HAS_IOMEM
+	depends on MIPS || COMPILE_TEST
 	select TIMER_OF
 	help
 	  Enables the clocksource for the Pistachio SoC.

drivers/phy/Kconfig

@@ -37,7 +37,7 @@ config PHY_LPC18XX_USB_OTG
 
 config PHY_PISTACHIO_USB
 	tristate "IMG Pistachio USB2.0 PHY driver"
-	depends on MACH_PISTACHIO
+	depends on MIPS || COMPILE_TEST
 	select GENERIC_PHY
 	help
 	  Enable this to support the USB2.0 PHY on the IMG Pistachio SoC.