Merge tag 'mips_fixes_4.21_1' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux

Pull MIPS fixes from Paul Burton:
"A few early MIPS fixes for 4.21:

- The Broadcom BCM63xx platform sees a fix for resetting the BCM6368
ethernet switch, and the removal of a platform device we've never
had a driver for.

- The Alchemy platform sees a few fixes for bitrot that occurred
within the past few cycles.

- We now enable vectored interrupt support for the MediaTek MT7620
SoC, which makes sense since they're supported by the SoC but in
this case also works around a bug relating to the location of
exception vectors when using a recent version of U-Boot.

- The atomic64_fetch_*_relaxed() family of functions see a fix for a
regression in MIPS64 kernels since v4.19.

- Cavium Octeon III CN7xxx systems will now disable their RGMII
interfaces rather than attempt to enable them & warn about the lack
of support for doing so, as they did since initial CN7xxx ethernet
support was added in v4.7.

- The Microsemi/Microchip MSCC SoCs gain a MAINTAINERS entry.

- .mailmap now provides consistency for Dengcheng Zhu's name &
current email address"

* tag 'mips_fixes_4.21_1' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux:
MIPS: OCTEON: mark RGMII interface disabled on OCTEON III
MIPS: Fix a R10000_LLSC_WAR logic in atomic.h
MIPS: BCM63XX: drop unused and broken DSP platform device
mailmap: Update name spelling and email for Dengcheng Zhu
MIPS: ralink: Select CONFIG_CPU_MIPSR2_IRQ_VI on MT7620/8
MAINTAINERS: Add a maintainer for MSCC MIPS SoCs
MIPS: Alchemy: update dma masks for devboard devices
MIPS: Alchemy: update cpu-feature-overrides
MIPS: Alchemy: drop DB1000 IrDA support bits
MIPS: alchemy: cpu_all_mask is forbidden for clock event devices
MIPS: BCM63XX: fix switch core reset on BCM6368

.mailmap

···
 Damian Hobson-Garcia <[e-mail]>
 David Brownell <[e-mail]>
 David Woodhouse <[e-mail]>
-Deng-Cheng Zhu <[e-mail]> <[e-mail]>
+Dengcheng Zhu <[e-mail]> <[e-mail]>
+Dengcheng Zhu <[e-mail]> <[e-mail]>
+Dengcheng Zhu <[e-mail]> <[e-mail]>
+Dengcheng Zhu <[e-mail]> <[e-mail]>
 Dmitry Eremin-Solenikov <[e-mail]>
 Domen Puncer <[e-mail]>
 Douglas Gilbert <[e-mail]>

MAINTAINERS

···
 
 MICROSEMI MIPS SOCS
 M:	Alexandre Belloni <[e-mail]>
+M:	Microchip Linux Driver Support <[e-mail]>
 L:	[e-mail]
-S:	Maintained
+S:	Supported
 F:	arch/mips/generic/board-ocelot.c
 F:	arch/mips/configs/generic/board-ocelot.config
 F:	arch/mips/boot/dts/mscc/

arch/mips/alchemy/common/time.c

···
 	.features	= CLOCK_EVT_FEAT_ONESHOT,
 	.rating		= 1500,
 	.set_next_event = au1x_rtcmatch2_set_next_event,
-	.cpumask	= cpu_all_mask,
+	.cpumask	= cpu_possible_mask,
 };
 
 static struct irqaction au1x_rtcmatch2_irqaction = {

arch/mips/alchemy/devboards/db1000.c

···
 	return -1;
 }
 
+static u64 au1xxx_all_dmamask = DMA_BIT_MASK(32);
+
 static struct resource alchemy_pci_host_res[] = {
 	[0] = {
 		.start	= AU1500_PCI_PHYS_ADDR,
···
 	}
 };
 
-static u64 au1100_lcd_dmamask = DMA_BIT_MASK(32);
-
 static struct platform_device au1100_lcd_device = {
 	.name		= "au1100-lcd",
 	.id		= 0,
 	.dev = {
-		.dma_mask		= &au1100_lcd_dmamask,
+		.dma_mask		= &au1xxx_all_dmamask,
 		.coherent_dma_mask	= DMA_BIT_MASK(32),
 	},
 	.num_resources	= ARRAY_SIZE(au1100_lcd_resources),
···
 
 static struct platform_device db1x00_audio_dev = {
 	.name		= "db1000-audio",
+	.dev = {
+		.dma_mask		= &au1xxx_all_dmamask,
+		.coherent_dma_mask	= DMA_BIT_MASK(32),
+	},
 };
 
 /******************************************************************************/
···
 	}
 };
 
-static u64 au1xxx_mmc_dmamask =	 DMA_BIT_MASK(32);
-
 static struct platform_device db1100_mmc0_dev = {
 	.name		= "au1xxx-mmc",
 	.id		= 0,
 	.dev = {
-		.dma_mask		= &au1xxx_mmc_dmamask,
+		.dma_mask		= &au1xxx_all_dmamask,
 		.coherent_dma_mask	= DMA_BIT_MASK(32),
 		.platform_data		= &db1100_mmc_platdata[0],
 	},
···
 	.name		= "au1xxx-mmc",
 	.id		= 1,
 	.dev = {
-		.dma_mask		= &au1xxx_mmc_dmamask,
+		.dma_mask		= &au1xxx_all_dmamask,
 		.coherent_dma_mask	= DMA_BIT_MASK(32),
 		.platform_data		= &db1100_mmc_platdata[1],
 	},
 	.num_resources	= ARRAY_SIZE(au1100_mmc1_res),
 	.resource	= au1100_mmc1_res,
-};
-
-/******************************************************************************/
-
-static void db1000_irda_set_phy_mode(int mode)
-{
-	unsigned short mask = BCSR_RESETS_IRDA_MODE_MASK | BCSR_RESETS_FIR_SEL;
-
-	switch (mode) {
-	case AU1000_IRDA_PHY_MODE_OFF:
-		bcsr_mod(BCSR_RESETS, mask, BCSR_RESETS_IRDA_MODE_OFF);
-		break;
-	case AU1000_IRDA_PHY_MODE_SIR:
-		bcsr_mod(BCSR_RESETS, mask, BCSR_RESETS_IRDA_MODE_FULL);
-		break;
-	case AU1000_IRDA_PHY_MODE_FIR:
-		bcsr_mod(BCSR_RESETS, mask, BCSR_RESETS_IRDA_MODE_FULL |
-					    BCSR_RESETS_FIR_SEL);
-		break;
-	}
-}
-
-static struct au1k_irda_platform_data db1000_irda_platdata = {
-	.set_phy_mode	= db1000_irda_set_phy_mode,
-};
-
-static struct resource au1000_irda_res[] = {
-	[0] = {
-		.start	= AU1000_IRDA_PHYS_ADDR,
-		.end	= AU1000_IRDA_PHYS_ADDR + 0x0fff,
-		.flags	= IORESOURCE_MEM,
-	},
-	[1] = {
-		.start	= AU1000_IRDA_TX_INT,
-		.end	= AU1000_IRDA_TX_INT,
-		.flags	= IORESOURCE_IRQ,
-	},
-	[2] = {
-		.start	= AU1000_IRDA_RX_INT,
-		.end	= AU1000_IRDA_RX_INT,
-		.flags	= IORESOURCE_IRQ,
-	},
-};
-
-static struct platform_device db1000_irda_dev = {
-	.name	= "au1000-irda",
-	.id	= -1,
-	.dev	= {
-		.platform_data = &db1000_irda_platdata,
-	},
-	.resource	= au1000_irda_res,
-	.num_resources	= ARRAY_SIZE(au1000_irda_res),
 };
 
 /******************************************************************************/
···
 	.id		= 0,
 	.dev		= {
 		.platform_data	= &db1100_spictl_pd,
+		.dma_mask		= &au1xxx_all_dmamask,
+		.coherent_dma_mask	= DMA_BIT_MASK(32),
 	},
 };
 
···
 	&db1x00_audio_dev,
 };
 
-static struct platform_device *db1000_devs[] = {
-	&db1000_irda_dev,
-};
-
 static struct platform_device *db1100_devs[] = {
 	&au1100_lcd_device,
 	&db1100_mmc0_dev,
 	&db1100_mmc1_dev,
-	&db1000_irda_dev,
 };
 
 int __init db1000_dev_setup(void)
···
 		d1 = 3; /* GPIO number, NOT irq! */
 		s0 = AU1000_GPIO1_INT;
 		s1 = AU1000_GPIO4_INT;
-		platform_add_devices(db1000_devs, ARRAY_SIZE(db1000_devs));
 	} else if ((board == BCSR_WHOAMI_PB1500) ||
 		   (board == BCSR_WHOAMI_PB1500R2)) {
 		c0 = AU1500_GPIO203_INT;

arch/mips/alchemy/devboards/db1200.c

···
 
 /******************************************************************************/
 
+static u64 au1200_all_dmamask = DMA_BIT_MASK(32);
+
 static struct mtd_partition db1200_spiflash_parts[] = {
 	{
 		.name	= "spi_flash",
···
 	},
 };
 
-static u64 au1200_ide_dmamask = DMA_BIT_MASK(32);
-
 static struct platform_device db1200_ide_dev = {
 	.name		= "pata_platform",
 	.id		= 0,
 	.dev = {
-		.dma_mask		= &au1200_ide_dmamask,
+		.dma_mask		= &au1200_all_dmamask,
 		.coherent_dma_mask	= DMA_BIT_MASK(32),
 		.platform_data		= &db1200_ide_info,
 	},
···
 	}
 };
 
-static u64 au1xxx_mmc_dmamask =	 DMA_BIT_MASK(32);
-
 static struct platform_device db1200_mmc0_dev = {
 	.name		= "au1xxx-mmc",
 	.id		= 0,
 	.dev = {
-		.dma_mask		= &au1xxx_mmc_dmamask,
+		.dma_mask		= &au1200_all_dmamask,
 		.coherent_dma_mask	= DMA_BIT_MASK(32),
 		.platform_data		= &db1200_mmc_platdata[0],
 	},
···
 	.name		= "au1xxx-mmc",
 	.id		= 1,
 	.dev = {
-		.dma_mask		= &au1xxx_mmc_dmamask,
+		.dma_mask		= &au1200_all_dmamask,
 		.coherent_dma_mask	= DMA_BIT_MASK(32),
 		.platform_data		= &db1200_mmc_platdata[1],
 	},
···
 	}
 };
 
-static u64 au1200_lcd_dmamask = DMA_BIT_MASK(32);
-
 static struct platform_device au1200_lcd_dev = {
 	.name		= "au1200-lcd",
 	.id		= 0,
 	.dev = {
-		.dma_mask		= &au1200_lcd_dmamask,
+		.dma_mask		= &au1200_all_dmamask,
 		.coherent_dma_mask	= DMA_BIT_MASK(32),
 		.platform_data		= &db1200fb_pd,
 	},
···
 	.activate_cs	= db1200_spi_cs_en,
 };
 
-static u64 spi_dmamask = DMA_BIT_MASK(32);
-
 static struct platform_device db1200_spi_dev = {
 	.dev	= {
-		.dma_mask		= &spi_dmamask,
+		.dma_mask		= &au1200_all_dmamask,
 		.coherent_dma_mask	= DMA_BIT_MASK(32),
 		.platform_data		= &db1200_spi_platdata,
 	},
···
 static struct platform_device db1200_sound_dev = {
 	/* name assigned later based on switch setting */
 	.id		= 1,	/* PSC ID */
+	.dev = {
+		.dma_mask		= &au1200_all_dmamask,
+		.coherent_dma_mask	= DMA_BIT_MASK(32),
+	},
 };
 
 static struct platform_device db1200_stac_dev = {

arch/mips/alchemy/devboards/db1300.c

···
 
 /**********************************************************************/
 
+static u64 au1300_all_dmamask = DMA_BIT_MASK(32);
+
 static void au1300_nand_cmd_ctrl(struct nand_chip *this, int cmd,
 				 unsigned int ctrl)
 {
···
 
 static struct platform_device db1300_ide_dev = {
 	.dev	= {
+		.dma_mask		= &au1300_all_dmamask,
+		.coherent_dma_mask	= DMA_BIT_MASK(32),
 		.platform_data	= &db1300_ide_info,
 	},
 	.name		= "pata_platform",
···
 
 static struct platform_device db1300_sd1_dev = {
 	.dev = {
-		.platform_data	= &db1300_sd1_platdata,
+		.dma_mask		= &au1300_all_dmamask,
+		.coherent_dma_mask	= DMA_BIT_MASK(32),
+		.platform_data		= &db1300_sd1_platdata,
 	},
 	.name		= "au1xxx-mmc",
 	.id		= 1,
···
 
 static struct platform_device db1300_sd0_dev = {
 	.dev = {
-		.platform_data	= &db1300_sd0_platdata,
+		.dma_mask		= &au1300_all_dmamask,
+		.coherent_dma_mask	= DMA_BIT_MASK(32),
+		.platform_data		= &db1300_sd0_platdata,
 	},
 	.name		= "au1xxx-mmc",
 	.id		= 0,
···
 
 static struct platform_device db1300_sndac97_dev = {
 	.name		= "db1300-ac97",
+	.dev = {
+		.dma_mask		= &au1300_all_dmamask,
+		.coherent_dma_mask	= DMA_BIT_MASK(32),
+	},
 };
 
 static struct platform_device db1300_sndi2s_dev = {
 	.name		= "db1300-i2s",
+	.dev = {
+		.dma_mask		= &au1300_all_dmamask,
+		.coherent_dma_mask	= DMA_BIT_MASK(32),
+	},
 };
 
 /**********************************************************************/
···
 	}
 };
 
-static u64 au1300_lcd_dmamask = DMA_BIT_MASK(32);
 
 static struct platform_device db1300_lcd_dev = {
 	.name		= "au1200-lcd",
 	.id		= 0,
 	.dev = {
-		.dma_mask		= &au1300_lcd_dmamask,
+		.dma_mask		= &au1300_all_dmamask,
 		.coherent_dma_mask	= DMA_BIT_MASK(32),
 		.platform_data		= &db1300fb_pd,
 	},

arch/mips/alchemy/devboards/db1550.c

···
 
 /*****************************************************************************/
 
+static u64 au1550_all_dmamask = DMA_BIT_MASK(32);
+
 static struct mtd_partition db1550_spiflash_parts[] = {
 	{
 		.name	= "spi_flash",
···
 	.activate_cs	= db1550_spi_cs_en,
 };
 
-static u64 spi_dmamask = DMA_BIT_MASK(32);
 
 static struct platform_device db1550_spi_dev = {
 	.dev	= {
-		.dma_mask		= &spi_dmamask,
+		.dma_mask		= &au1550_all_dmamask,
 		.coherent_dma_mask	= DMA_BIT_MASK(32),
 		.platform_data		= &db1550_spi_platdata,
 	},
···
 
 static struct platform_device db1550_sndac97_dev = {
 	.name		= "db1550-ac97",
+	.dev = {
+		.dma_mask		= &au1550_all_dmamask,
+		.coherent_dma_mask	= DMA_BIT_MASK(32),
+	},
 };
 
 static struct platform_device db1550_sndi2s_dev = {
 	.name		= "db1550-i2s",
+	.dev = {
+		.dma_mask		= &au1550_all_dmamask,
+		.coherent_dma_mask	= DMA_BIT_MASK(32),
+	},
 };
 
 /**********************************************************************/

arch/mips/bcm63xx/Makefile

···
 # SPDX-License-Identifier: GPL-2.0
 obj-y		+= clk.o cpu.o cs.o gpio.o irq.o nvram.o prom.o reset.o \
-		   setup.o timer.o dev-dsp.o dev-enet.o dev-flash.o \
-		   dev-pcmcia.o dev-rng.o dev-spi.o dev-hsspi.o dev-uart.o \
-		   dev-wdt.o dev-usb-usbd.o
+		   setup.o timer.o dev-enet.o dev-flash.o dev-pcmcia.o \
+		   dev-rng.o dev-spi.o dev-hsspi.o dev-uart.o dev-wdt.o \
+		   dev-usb-usbd.o
 obj-$(CONFIG_EARLY_PRINTK)	+= early_printk.o
 
 obj-y		+= boards/

arch/mips/bcm63xx/boards/board_bcm963xx.c

···
 #include <bcm63xx_nvram.h>
 #include <bcm63xx_dev_pci.h>
 #include <bcm63xx_dev_enet.h>
-#include <bcm63xx_dev_dsp.h>
 #include <bcm63xx_dev_flash.h>
 #include <bcm63xx_dev_hsspi.h>
 #include <bcm63xx_dev_pcmcia.h>
···
 	.has_pccard			= 1,
 	.has_ehci0			= 1,
 
-	.has_dsp			= 1,
-	.dsp = {
-		.gpio_rst		= 6,
-		.gpio_int		= 34,
-		.cs			= 2,
-		.ext_irq		= 2,
-	},
-
 	.leds = {
 		{
 			.name		= "adsl-fail",
···
 	},
 
 	.has_ohci0 = 1,
-
-	.has_dsp			= 1,
-	.dsp = {
-		.gpio_rst		= 6,
-		.gpio_int		= 34,
-		.ext_irq		= 2,
-		.cs			= 2,
-	},
 
 	.leds = {
 		{
···
 
 	if (board.has_usbd)
 		bcm63xx_usbd_register(&board.usbd);
-
-	if (board.has_dsp)
-		bcm63xx_dsp_register(&board.dsp);
 
 	/* Generate MAC address for WLAN and register our SPROM,
 	 * do this after registering enet devices

arch/mips/bcm63xx/dev-dsp.c

···
-/*
- * Broadcom BCM63xx VoIP DSP registration
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * Copyright (C) 2009 Florian Fainelli <[e-mail]>
- */
-
-#include <linux/init.h>
-#include <linux/kernel.h>
-#include <linux/platform_device.h>
-
-#include <bcm63xx_cpu.h>
-#include <bcm63xx_dev_dsp.h>
-#include <bcm63xx_regs.h>
-#include <bcm63xx_io.h>
-
-static struct resource voip_dsp_resources[] = {
-	{
-		.start		= -1, /* filled at runtime */
-		.end		= -1, /* filled at runtime */
-		.flags		= IORESOURCE_MEM,
-	},
-	{
-		.start		= -1, /* filled at runtime */
-		.flags		= IORESOURCE_IRQ,
-	},
-};
-
-static struct platform_device bcm63xx_voip_dsp_device = {
-	.name		= "bcm63xx-voip-dsp",
-	.id		= -1,
-	.num_resources	= ARRAY_SIZE(voip_dsp_resources),
-	.resource	= voip_dsp_resources,
-};
-
-int __init bcm63xx_dsp_register(const struct bcm63xx_dsp_platform_data *pd)
-{
-	struct bcm63xx_dsp_platform_data *dpd;
-	u32 val;
-
-	/* Get the memory window */
-	val = bcm_mpi_readl(MPI_CSBASE_REG(pd->cs - 1));
-	val &= MPI_CSBASE_BASE_MASK;
-	voip_dsp_resources[0].start = val;
-	voip_dsp_resources[0].end = val + 0xFFFFFFF;
-	voip_dsp_resources[1].start = pd->ext_irq;
-
-	/* copy given platform data */
-	dpd = bcm63xx_voip_dsp_device.dev.platform_data;
-	memcpy(dpd, pd, sizeof (*pd));
-
-	return platform_device_register(&bcm63xx_voip_dsp_device);
-}

arch/mips/bcm63xx/reset.c

···
 #define BCM6368_RESET_DSL	0
 #define BCM6368_RESET_SAR	SOFTRESET_6368_SAR_MASK
 #define BCM6368_RESET_EPHY	SOFTRESET_6368_EPHY_MASK
-#define BCM6368_RESET_ENETSW	0
+#define BCM6368_RESET_ENETSW	SOFTRESET_6368_ENETSW_MASK
 #define BCM6368_RESET_PCM	SOFTRESET_6368_PCM_MASK
 #define BCM6368_RESET_MPI	SOFTRESET_6368_MPI_MASK
 #define BCM6368_RESET_PCIE	0

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

···
 	case 3:
 		return CVMX_HELPER_INTERFACE_MODE_LOOP;
 	case 4:
-		return CVMX_HELPER_INTERFACE_MODE_RGMII;
+		/* TODO: Implement support for AGL (RGMII). */
+		return CVMX_HELPER_INTERFACE_MODE_DISABLED;
 	default:
 		return CVMX_HELPER_INTERFACE_MODE_DISABLED;
 	}

arch/mips/include/asm/atomic.h

···
 {									      \
 	long result;							      \
 									      \
-	if (kernel_uses_llsc && R10000_LLSC_WAR) {			      \
+	if (kernel_uses_llsc) {						      \
 		long temp;						      \
 									      \
 		__asm__ __volatile__(					      \

arch/mips/include/asm/mach-au1x00/cpu-feature-overrides.h

···
 #define cpu_dcache_line_size()		32
 #define cpu_icache_line_size()		32
 #define cpu_scache_line_size()		0
+#define cpu_tcache_line_size()		0
 
 #define cpu_has_perf_cntr_intr_bit	0
 #define cpu_has_vz			0
 #define cpu_has_msa			0
+#define cpu_has_ufr			0
 #define cpu_has_fre			0
 #define cpu_has_cdmm			0
 #define cpu_has_small_pages		0
···
 #define cpu_has_badinstr		0
 #define cpu_has_badinstrp		0
 #define cpu_has_contextconfig		0
+#define cpu_has_perf			0
 
 #endif /* __ASM_MACH_AU1X00_CPU_FEATURE_OVERRIDES_H */

arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_dsp.h

···
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef __BCM63XX_DSP_H
-#define __BCM63XX_DSP_H
-
-struct bcm63xx_dsp_platform_data {
-	unsigned gpio_rst;
-	unsigned gpio_int;
-	unsigned cs;
-	unsigned ext_irq;
-};
-
-int __init bcm63xx_dsp_register(const struct bcm63xx_dsp_platform_data *pd);
-
-#endif /* __BCM63XX_DSP_H */

arch/mips/include/asm/mach-bcm63xx/board_bcm963xx.h

···
 #include <linux/leds.h>
 #include <bcm63xx_dev_enet.h>
 #include <bcm63xx_dev_usb_usbd.h>
-#include <bcm63xx_dev_dsp.h>
 
 /*
  * flash mapping
···
 	unsigned int	has_ohci0:1;
 	unsigned int	has_ehci0:1;
 	unsigned int	has_usbd:1;
-	unsigned int	has_dsp:1;
 	unsigned int	has_uart0:1;
 	unsigned int	has_uart1:1;
 
···
 
 	/* USB config */
 	struct bcm63xx_usbd_platform_data usbd;
-
-	/* DSP config */
-	struct bcm63xx_dsp_platform_data dsp;
 
 	/* GPIO LEDs */
 	struct gpio_led leds[5];

arch/mips/ralink/Kconfig

···
 
 	config SOC_MT7620
 		bool "MT7620/8"
+		select CPU_MIPSR2_IRQ_VI
 		select HAVE_PCI
 
 	config SOC_MT7621