Merge tag 'mips_4.17' of git://git.kernel.org/pub/scm/linux/kernel/gi…

…t/jhogan/mips

Pull MIPS updates from James Hogan:
 "These are the main MIPS changes for 4.17. Rough overview:

   (1) generic platform: Add support for Microsemi Ocelot SoCs

   (2) crypto: Add CRC32 and CRC32C HW acceleration module

   (3) Various cleanups and misc improvements

  More detailed summary:

  Miscellaneous:
   - hang more efficiently on halt/powerdown/restart
   - pm-cps: Block system suspend when a JTAG probe is present
   - expand make help text for generic defconfigs
   - refactor handling of legacy defconfigs
   - determine the entry point from the ELF file header to fix microMIPS
     for certain toolchains
   - introduce isa-rev.h for MIPS_ISA_REV and use to simplify other code

  Minor cleanups:
   - DTS: boston/ci20: Unit name cleanups and correction
   - kdump: Make the default for PHYSICAL_START always 64-bit
   - constify gpio_led in Alchemy, AR7, and TXX9
   - silence a couple of W=1 warnings
   - remove duplicate includes

  Platform support:
  Generic platform:
   - add support for Microsemi Ocelot
   - dt-bindings: Add vendor prefix for Microsemi Corporation
   - dt-bindings: Add bindings for Microsemi SoCs
   - add ocelot SoC & PCB123 board DTS files
   - MAINTAINERS: Add entry for Microsemi MIPS SoCs
   - enable crc32-mips on r6 configs

  ath79:
   - fix AR724X_PLL_REG_PCIE_CONFIG offset

  BCM47xx:
   - firmware: Use mac_pton() for MAC address parsing
   - add Luxul XAP1500/XWR1750 WiFi LEDs
   - use standard reset button for Luxul XWR-1750

  BMIPS:
   - enable CONFIG_BRCMSTB_PM in bmips_stb_defconfig for build coverage
   - add STB PM, wake-up timer, watchdog DT nodes

  Octeon:
   - drop '.' after newlines in printk calls

  ralink:
   - pci-mt7621: Enable PCIe on MT7688"

* tag 'mips_4.17' of git://git.kernel.org/pub/scm/linux/kernel/git/jhogan/mips: (37 commits)
  MIPS: BCM47XX: Use standard reset button for Luxul XWR-1750
  MIPS: BCM47XX: Add Luxul XAP1500/XWR1750 WiFi LEDs
  MIPS: Make the default for PHYSICAL_START always 64-bit
  MIPS: Use the entry point from the ELF file header
  MAINTAINERS: Add entry for Microsemi MIPS SoCs
  MIPS: generic: Add support for Microsemi Ocelot
  MIPS: mscc: Add ocelot PCB123 device tree
  MIPS: mscc: Add ocelot dtsi
  dt-bindings: mips: Add bindings for Microsemi SoCs
  dt-bindings: Add vendor prefix for Microsemi Corporation
  MIPS: ath79: Fix AR724X_PLL_REG_PCIE_CONFIG offset
  MIPS: pci-mt7620: Enable PCIe on MT7688
  MIPS: pm-cps: Block system suspend when a JTAG probe is present
  MIPS: VDSO: Replace __mips_isa_rev with MIPS_ISA_REV
  MIPS: BPF: Replace __mips_isa_rev with MIPS_ISA_REV
  MIPS: cpu-features.h: Replace __mips_isa_rev with MIPS_ISA_REV
  MIPS: Introduce isa-rev.h to define MIPS_ISA_REV
  MIPS: Hang more efficiently on halt/powerdown/restart
  FIRMWARE: bcm47xx_nvram: Replace mac address parsing
  MIPS: BMIPS: Add Broadcom STB watchdog nodes
  ...

Documentation/devicetree/bindings/mips/mscc.txt

@@ -0,0 +1,43 @@
+* Microsemi MIPS CPUs
+
+Boards with a SoC of the Microsemi MIPS family shall have the following
+properties:
+
+Required properties:
+- compatible: "mscc,ocelot"
+
+
+* Other peripherals:
+
+o CPU chip regs:
+
+The SoC has a few registers (DEVCPU_GCB:CHIP_REGS) handling miscellaneous
+functionalities: chip ID, general purpose register for software use, reset
+controller, hardware status and configuration, efuses.
+
+Required properties:
+- compatible: Should be "mscc,ocelot-chip-regs", "simple-mfd", "syscon"
+- reg : Should contain registers location and length
+
+Example:
+	syscon@71070000 {
+		compatible = "mscc,ocelot-chip-regs", "simple-mfd", "syscon";
+		reg = <0x71070000 0x1c>;
+	};
+
+
+o CPU system control:
+
+The SoC has a few registers (ICPU_CFG:CPU_SYSTEM_CTRL) handling configuration of
+the CPU: 8 general purpose registers, reset control, CPU en/disabling, CPU
+endianness, CPU bus control, CPU status.
+
+Required properties:
+- compatible: Should be "mscc,ocelot-cpu-syscon", "syscon"
+- reg : Should contain registers location and length
+
+Example:
+	syscon@70000000 {
+		compatible = "mscc,ocelot-cpu-syscon", "syscon";
+		reg = <0x70000000 0x2c>;
+	};

Documentation/devicetree/bindings/vendor-prefixes.txt

@@ -225,6 +225,7 @@ motorola	Motorola, Inc.
 moxa	Moxa Inc.
 mpl	MPL AG
 mqmaker	mqmaker Inc.
+mscc	Microsemi Corporation
 msi	Micro-Star International Co. Ltd.
 mti	Imagination Technologies Ltd. (formerly MIPS Technologies Inc.)
 multi-inno	Multi-Inno Technology Co.,Ltd

MAINTAINERS

@@ -9230,6 +9230,15 @@ S:	Maintained
 F:	drivers/usb/misc/usb251xb.c
 F:	Documentation/devicetree/bindings/usb/usb251xb.txt
 
+MICROSEMI MIPS SOCS
+M:	Alexandre Belloni <[email protected]>
+L:	[email protected]
+S:	Maintained
+F:	arch/mips/generic/board-ocelot.c
+F:	arch/mips/configs/generic/board-ocelot.config
+F:	arch/mips/boot/dts/mscc/
+F:	Documentation/devicetree/bindings/mips/mscc.txt
+
 MICROSEMI SMART ARRAY SMARTPQI DRIVER (smartpqi)
 M:	Don Brace <[email protected]>
 L:	[email protected]

arch/mips/Kconfig

@@ -2029,6 +2029,7 @@ config CPU_MIPSR6
 	select CPU_HAS_RIXI
 	select HAVE_ARCH_BITREVERSE
 	select MIPS_ASID_BITS_VARIABLE
+	select MIPS_CRC_SUPPORT
 	select MIPS_SPRAM
 
 config EVA
@@ -2502,6 +2503,9 @@ config MIPS_ASID_BITS
 config MIPS_ASID_BITS_VARIABLE
 	bool
 
+config MIPS_CRC_SUPPORT
+	bool
+
 #
 # - Highmem only makes sense for the 32-bit kernel.
 # - The current highmem code will only work properly on physically indexed
@@ -2850,8 +2854,7 @@ config CRASH_DUMP
 
 config PHYSICAL_START
 	hex "Physical address where the kernel is loaded"
-	default "0xffffffff84000000" if 64BIT
-	default "0x84000000" if 32BIT
+	default "0xffffffff84000000"
 	depends on CRASH_DUMP
 	help
 	  This gives the CKSEG0 or KSEG0 address where the kernel is loaded.

arch/mips/Makefile

@@ -222,6 +222,8 @@ xpa-cflags-y				:= $(mips-cflags)
 xpa-cflags-$(micromips-ase)		+= -mmicromips -Wa$(comma)-fatal-warnings
 toolchain-xpa				:= $(call cc-option-yn,$(xpa-cflags-y) -mxpa)
 cflags-$(toolchain-xpa)			+= -DTOOLCHAIN_SUPPORTS_XPA
+toolchain-crc				:= $(call cc-option-yn,$(mips-cflags) -Wa$(comma)-mcrc)
+cflags-$(toolchain-crc)			+= -DTOOLCHAIN_SUPPORTS_CRC
 
 #
 # Firmware support
@@ -249,20 +251,12 @@ ifdef CONFIG_PHYSICAL_START
 load-y					= $(CONFIG_PHYSICAL_START)
 endif
 
-entry-noisa-y				= 0x$(shell $(NM) vmlinux 2>/dev/null \
-					| grep "\bkernel_entry\b" | cut -f1 -d \ )
-ifdef CONFIG_CPU_MICROMIPS
-  #
-  # Set the ISA bit, since the kernel_entry symbol in the ELF will have it
-  # clear which would lead to images containing addresses which bootloaders may
-  # jump to as MIPS32 code.
-  #
-  entry-y = $(patsubst %0,%1,$(patsubst %2,%3,$(patsubst %4,%5, \
-              $(patsubst %6,%7,$(patsubst %8,%9,$(patsubst %a,%b, \
-              $(patsubst %c,%d,$(patsubst %e,%f,$(entry-noisa-y)))))))))
-else
-  entry-y = $(entry-noisa-y)
-endif
+# Sign-extend the entry point to 64 bits if retrieved as a 32-bit number.
+entry-y		= $(shell $(OBJDUMP) -f vmlinux 2>/dev/null \
+			| sed -n '/^start address / { \
+				s/^.* //; \
+				s/0x\([0-7].......\)$$/0x00000000\1/; \
+				s/0x\(........\)$$/0xffffffff\1/; p }')
 
 cflags-y			+= -I$(srctree)/arch/mips/include/asm/mach-generic
 drivers-$(CONFIG_PCI)		+= arch/mips/pci/
@@ -330,6 +324,7 @@ libs-y			+= arch/mips/math-emu/
 # See arch/mips/Kbuild for content of core part of the kernel
 core-y += arch/mips/
 
+drivers-$(CONFIG_MIPS_CRC_SUPPORT) += arch/mips/crypto/
 drivers-$(CONFIG_OPROFILE)	+= arch/mips/oprofile/
 
 # suspend and hibernation support
@@ -473,6 +468,21 @@ define archhelp
 	echo
 	echo '  {micro32,32,64}{r1,r2,r6}{el,}_defconfig <BOARDS="list of boards">'
 	echo
+	echo '  Where BOARDS is some subset of the following:'
+	for board in $(sort $(BOARDS)); do echo "    $${board}"; done
+	echo
+	echo '  Specifically the following generic default configurations are'
+	echo '  supported:'
+	echo
+	$(foreach cfg,$(generic_defconfigs),
+	  printf "  %-24s - Build generic kernel for $(call describe_generic_defconfig,$(cfg))\n" $(cfg);)
+	echo
+	echo '  The following legacy default configurations have been converted to'
+	echo '  generic and can still be used:'
+	echo
+	$(foreach cfg,$(sort $(legacy_defconfigs)),
+	  printf "  %-24s - Build $($(cfg)-y)\n" $(cfg);)
+	echo
 	echo '  Otherwise, the following default configurations are available:'
 endef
 
@@ -507,6 +517,10 @@ endef
 $(eval $(call gen_generic_defconfigs,32 64,r1 r2 r6,eb el))
 $(eval $(call gen_generic_defconfigs,micro32,r2,eb el))
 
+define describe_generic_defconfig
+$(subst 32r,MIPS32 r,$(subst 64r,MIPS64 r,$(subst el, little endian,$(patsubst %_defconfig,%,$(1)))))
+endef
+
 .PHONY: $(generic_defconfigs)
 $(generic_defconfigs):
 	$(Q)$(CONFIG_SHELL) $(srctree)/scripts/kconfig/merge_config.sh \
@@ -543,14 +557,18 @@ generic_defconfig:
 # now that the boards have been converted to use the generic kernel they are
 # wrappers around the generic rules above.
 #
-.PHONY: sead3_defconfig
-sead3_defconfig:
-	$(Q)$(MAKE) -f $(srctree)/Makefile 32r2el_defconfig BOARDS=sead-3
+legacy_defconfigs		+= ocelot_defconfig
+ocelot_defconfig-y		:= 32r2el_defconfig BOARDS=ocelot
+
+legacy_defconfigs		+= sead3_defconfig
+sead3_defconfig-y		:= 32r2el_defconfig BOARDS=sead-3
+
+legacy_defconfigs		+= sead3micro_defconfig
+sead3micro_defconfig-y		:= micro32r2el_defconfig BOARDS=sead-3
 
-.PHONY: sead3micro_defconfig
-sead3micro_defconfig:
-	$(Q)$(MAKE) -f $(srctree)/Makefile micro32r2el_defconfig BOARDS=sead-3
+legacy_defconfigs		+= xilfpga_defconfig
+xilfpga_defconfig-y		:= 32r2el_defconfig BOARDS=xilfpga
 
-.PHONY: xilfpga_defconfig
-xilfpga_defconfig:
-	$(Q)$(MAKE) -f $(srctree)/Makefile 32r2el_defconfig BOARDS=xilfpga
+.PHONY: $(legacy_defconfigs)
+$(legacy_defconfigs):
+	$(Q)$(MAKE) -f $(srctree)/Makefile $($@-y)

arch/mips/alchemy/board-gpr.c

@@ -190,7 +190,7 @@ static struct platform_device gpr_mtd_device = {
 /*
  * LEDs
  */
-static struct gpio_led gpr_gpio_leds[] = {
+static const struct gpio_led gpr_gpio_leds[] = {
 	{	/* green */
 		.name			= "gpr:green",
 		.gpio			= 4,

arch/mips/alchemy/board-mtx1.c

@@ -145,7 +145,7 @@ static struct platform_device mtx1_wdt = {
 	.resource = mtx1_wdt_res,
 };
 
-static struct gpio_led default_leds[] = {
+static const struct gpio_led default_leds[] = {
 	{
 		.name	= "mtx1:green",
 		.gpio = 211,

arch/mips/ar7/platform.c

@@ -346,20 +346,20 @@ static struct platform_device ar7_udc = {
 /*****************************************************************************
  * LEDs
  ****************************************************************************/
-static struct gpio_led default_leds[] = {
+static const struct gpio_led default_leds[] = {
 	{
 		.name			= "status",
 		.gpio			= 8,
 		.active_low		= 1,
 	},
 };
 
-static struct gpio_led titan_leds[] = {
+static const struct gpio_led titan_leds[] = {
 	{ .name = "status", .gpio = 8, .active_low = 1, },
 	{ .name = "wifi", .gpio = 13, .active_low = 1, },
 };
 
-static struct gpio_led dsl502t_leds[] = {
+static const struct gpio_led dsl502t_leds[] = {
 	{
 		.name			= "status",
 		.gpio			= 9,
@@ -377,7 +377,7 @@ static struct gpio_led dsl502t_leds[] = {
 	},
 };
 
-static struct gpio_led dg834g_leds[] = {
+static const struct gpio_led dg834g_leds[] = {
 	{
 		.name			= "ppp",
 		.gpio			= 6,
@@ -406,7 +406,7 @@ static struct gpio_led dg834g_leds[] = {
 	},
 };
 
-static struct gpio_led fb_sl_leds[] = {
+static const struct gpio_led fb_sl_leds[] = {
 	{
 		.name			= "1",
 		.gpio			= 7,
@@ -433,7 +433,7 @@ static struct gpio_led fb_sl_leds[] = {
 	},
 };
 
-static struct gpio_led fb_fon_leds[] = {
+static const struct gpio_led fb_fon_leds[] = {
 	{
 		.name			= "1",
 		.gpio			= 8,
@@ -459,7 +459,7 @@ static struct gpio_led fb_fon_leds[] = {
 	},
 };
 
-static struct gpio_led gt701_leds[] = {
+static const struct gpio_led gt701_leds[] = {
 	{
 		.name			= "inet:green",
 		.gpio			= 13,

arch/mips/bcm47xx/buttons.c

@@ -355,7 +355,7 @@ bcm47xx_buttons_luxul_xwr_600_v1[] = {
 
 static const struct gpio_keys_button
 bcm47xx_buttons_luxul_xwr_1750_v1[] = {
-	BCM47XX_GPIO_KEY(14, BTN_TASK),
+	BCM47XX_GPIO_KEY(14, KEY_RESTART),
 };
 
 /* Microsoft */

arch/mips/bcm47xx/leds.c

@@ -408,6 +408,12 @@ bcm47xx_leds_luxul_xap_1500_v1[] __initconst = {
 	BCM47XX_GPIO_LED_TRIGGER(13, "green", "status", 1, "timer"),
 };
 
+static const struct gpio_led
+bcm47xx_leds_luxul_xap1500_v1_extra[] __initconst = {
+	BCM47XX_GPIO_LED(44, "green", "5ghz", 0, LEDS_GPIO_DEFSTATE_OFF),
+	BCM47XX_GPIO_LED(76, "green", "2ghz", 0, LEDS_GPIO_DEFSTATE_OFF),
+};
+
 static const struct gpio_led
 bcm47xx_leds_luxul_xbr_4400_v1[] __initconst = {
 	BCM47XX_GPIO_LED(12, "green", "usb", 0, LEDS_GPIO_DEFSTATE_OFF),
@@ -435,6 +441,11 @@ bcm47xx_leds_luxul_xwr_1750_v1[] __initconst = {
 	BCM47XX_GPIO_LED(15, "green", "wps", 0, LEDS_GPIO_DEFSTATE_OFF),
 };
 
+static const struct gpio_led
+bcm47xx_leds_luxul_xwr1750_v1_extra[] __initconst = {
+	BCM47XX_GPIO_LED(76, "green", "2ghz", 0, LEDS_GPIO_DEFSTATE_OFF),
+};
+
 /* Microsoft */
 
 static const struct gpio_led
@@ -528,6 +539,12 @@ static struct gpio_led_platform_data bcm47xx_leds_pdata;
 	bcm47xx_leds_pdata.num_leds = ARRAY_SIZE(dev_leds);		\
 } while (0)
 
+static struct gpio_led_platform_data bcm47xx_leds_pdata_extra __initdata = {};
+#define bcm47xx_set_pdata_extra(dev_leds) do {				\
+	bcm47xx_leds_pdata_extra.leds = dev_leds;			\
+	bcm47xx_leds_pdata_extra.num_leds = ARRAY_SIZE(dev_leds);	\
+} while (0)
+
 void __init bcm47xx_leds_register(void)
 {
 	enum bcm47xx_board board = bcm47xx_board_get();
@@ -705,6 +722,7 @@ void __init bcm47xx_leds_register(void)
 		break;
 	case BCM47XX_BOARD_LUXUL_XAP_1500_V1:
 		bcm47xx_set_pdata(bcm47xx_leds_luxul_xap_1500_v1);
+		bcm47xx_set_pdata_extra(bcm47xx_leds_luxul_xap1500_v1_extra);
 		break;
 	case BCM47XX_BOARD_LUXUL_XBR_4400_V1:
 		bcm47xx_set_pdata(bcm47xx_leds_luxul_xbr_4400_v1);
@@ -717,6 +735,7 @@ void __init bcm47xx_leds_register(void)
 		break;
 	case BCM47XX_BOARD_LUXUL_XWR_1750_V1:
 		bcm47xx_set_pdata(bcm47xx_leds_luxul_xwr_1750_v1);
+		bcm47xx_set_pdata_extra(bcm47xx_leds_luxul_xwr1750_v1_extra);
 		break;
 
 	case BCM47XX_BOARD_MICROSOFT_MN700:
@@ -760,4 +779,6 @@ void __init bcm47xx_leds_register(void)
 	}
 
 	gpio_led_register_device(-1, &bcm47xx_leds_pdata);
+	if (bcm47xx_leds_pdata_extra.num_leds)
+		gpio_led_register_device(0, &bcm47xx_leds_pdata_extra);
 }

arch/mips/boot/dts/Makefile

@@ -4,6 +4,7 @@ subdir-y	+= cavium-octeon
 subdir-y	+= img
 subdir-y	+= ingenic
 subdir-y	+= lantiq
+subdir-y	+= mscc
 subdir-y	+= mti
 subdir-y	+= netlogic
 subdir-y	+= ni

arch/mips/boot/dts/brcm/bcm7125.dtsi

@@ -198,6 +198,13 @@
 			status = "disabled";
 		};
 
+		watchdog: watchdog@4067e8 {
+			clocks = <&upg_clk>;
+			compatible = "brcm,bcm7038-wdt";
+			reg = <0x4067e8 0x14>;
+			status = "disabled";
+		};
+
 		upg_gio: gpio@406700 {
 			compatible = "brcm,brcmstb-gpio";
 			reg = <0x406700 0x80>;