Merge tag 'metag_remove_2' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/jhogan/metag into asm-generic

Remove metag architecture

These patches remove the metag architecture and tightly dependent
drivers from the kernel. With the 4.16 kernel the ancient gcc 4.2.4
based metag toolchain we have been using is hitting compiler bugs, so
now seems a good time to drop it altogether.

* tag 'metag_remove_2' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/jhogan/metag:
  i2c: img-scb: Drop METAG dependency
  media: img-ir: Drop METAG dependency
  watchdog: imgpdc: Drop METAG dependency
  MAINTAINERS/CREDITS: Drop METAG ARCHITECTURE
  tty: Remove metag DA TTY and console driver
  clocksource: Remove metag generic timer driver
  irqchip: Remove metag irqchip drivers
  Drop a bunch of metag references
  docs: Remove remaining references to metag
  docs: Remove metag docs
  metag: Remove arch/metag/

Signed-off-by: Arnd Bergmann <arnd@arndb.de>

12 files changed, 3 insertions, 2065 deletions

diff --git a/drivers/clocksource/Kconfig b/drivers/clocksource/Kconfig
index b3b4ed9b6874..f99dbc2f7ee4 100644
--- a/drivers/clocksource/Kconfig
+++ b/drivers/clocksource/Kconfig
@@ -391,11 +391,6 @@ config ATMEL_ST
 	help
 	  Support for the Atmel ST timer.
 
-config CLKSRC_METAG_GENERIC
-	def_bool y if METAG
-	help
-	  This option enables support for the Meta per-thread timers.
-
 config CLKSRC_EXYNOS_MCT
 	bool "Exynos multi core timer driver" if COMPILE_TEST
 	depends on ARM || ARM64
diff --git a/drivers/clocksource/Makefile b/drivers/clocksource/Makefile
index d6dec4489d66..a2d47e9ecf91 100644
--- a/drivers/clocksource/Makefile
+++ b/drivers/clocksource/Makefile
@@ -61,7 +61,6 @@ obj-$(CONFIG_ARM_ARCH_TIMER)		+= arm_arch_timer.o
 obj-$(CONFIG_ARM_GLOBAL_TIMER)		+= arm_global_timer.o
 obj-$(CONFIG_ARMV7M_SYSTICK)		+= armv7m_systick.o
 obj-$(CONFIG_ARM_TIMER_SP804)		+= timer-sp804.o
-obj-$(CONFIG_CLKSRC_METAG_GENERIC)	+= metag_generic.o
 obj-$(CONFIG_ARCH_HAS_TICK_BROADCAST)	+= dummy_timer.o
 obj-$(CONFIG_KEYSTONE_TIMER)		+= timer-keystone.o
 obj-$(CONFIG_INTEGRATOR_AP_TIMER)	+= timer-integrator-ap.o
diff --git a/drivers/clocksource/metag_generic.c b/drivers/clocksource/metag_generic.c
deleted file mode 100644
index 3e5fa2f62d5f..000000000000
--- a/drivers/clocksource/metag_generic.c
+++ /dev/null
@@ -1,161 +0,0 @@
-/*
- * Copyright (C) 2005-2013 Imagination Technologies Ltd.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- *
- *
- * Support for Meta per-thread timers.
- *
- * Meta hardware threads have 2 timers. The background timer (TXTIMER) is used
- * as a free-running time base (hz clocksource), and the interrupt timer
- * (TXTIMERI) is used for the timer interrupt (clock event). Both counters
- * traditionally count at approximately 1MHz.
- */
-
-#include <clocksource/metag_generic.h>
-#include <linux/cpu.h>
-#include <linux/errno.h>
-#include <linux/sched.h>
-#include <linux/kernel.h>
-#include <linux/param.h>
-#include <linux/time.h>
-#include <linux/init.h>
-#include <linux/proc_fs.h>
-#include <linux/clocksource.h>
-#include <linux/clockchips.h>
-#include <linux/interrupt.h>
-
-#include <asm/clock.h>
-#include <asm/hwthread.h>
-#include <asm/core_reg.h>
-#include <asm/metag_mem.h>
-#include <asm/tbx.h>
-
-#define HARDWARE_FREQ		1000000	/* 1MHz */
-#define HARDWARE_DIV		1	/* divide by 1 = 1MHz clock */
-#define HARDWARE_TO_NS_SHIFT	10	/* convert ticks to ns */
-
-static unsigned int hwtimer_freq = HARDWARE_FREQ;
-static DEFINE_PER_CPU(struct clock_event_device, local_clockevent);
-static DEFINE_PER_CPU(char [11], local_clockevent_name);
-
-static int metag_timer_set_next_event(unsigned long delta,
-				      struct clock_event_device *dev)
-{
-	__core_reg_set(TXTIMERI, -delta);
-	return 0;
-}
-
-static u64 metag_clocksource_read(struct clocksource *cs)
-{
-	return __core_reg_get(TXTIMER);
-}
-
-static struct clocksource clocksource_metag = {
-	.name = "META",
-	.rating = 200,
-	.mask = CLOCKSOURCE_MASK(32),
-	.read = metag_clocksource_read,
-	.flags = CLOCK_SOURCE_IS_CONTINUOUS,
-};
-
-static irqreturn_t metag_timer_interrupt(int irq, void *dummy)
-{
-	struct clock_event_device *evt = this_cpu_ptr(&local_clockevent);
-
-	evt->event_handler(evt);
-
-	return IRQ_HANDLED;
-}
-
-static struct irqaction metag_timer_irq = {
-	.name = "META core timer",
-	.handler = metag_timer_interrupt,
-	.flags = IRQF_TIMER | IRQF_IRQPOLL | IRQF_PERCPU,
-};
-
-unsigned long long sched_clock(void)
-{
-	unsigned long long ticks = __core_reg_get(TXTIMER);
-	return ticks << HARDWARE_TO_NS_SHIFT;
-}
-
-static int arch_timer_starting_cpu(unsigned int cpu)
-{
-	unsigned int txdivtime;
-	struct clock_event_device *clk = &per_cpu(local_clockevent, cpu);
-	char *name = per_cpu(local_clockevent_name, cpu);
-
-	txdivtime = __core_reg_get(TXDIVTIME);
-
-	txdivtime &= ~TXDIVTIME_DIV_BITS;
-	txdivtime |= (HARDWARE_DIV & TXDIVTIME_DIV_BITS);
-
-	__core_reg_set(TXDIVTIME, txdivtime);
-
-	sprintf(name, "META %d", cpu);
-	clk->name = name;
-	clk->features = CLOCK_EVT_FEAT_ONESHOT,
-
-	clk->rating = 200,
-	clk->shift = 12,
-	clk->irq = tbisig_map(TBID_SIGNUM_TRT),
-	clk->set_next_event = metag_timer_set_next_event,
-
-	clk->mult = div_sc(hwtimer_freq, NSEC_PER_SEC, clk->shift);
-	clk->max_delta_ns = clockevent_delta2ns(0x7fffffff, clk);
-	clk->max_delta_ticks = 0x7fffffff;
-	clk->min_delta_ns = clockevent_delta2ns(0xf, clk);
-	clk->min_delta_ticks = 0xf;
-	clk->cpumask = cpumask_of(cpu);
-
-	clockevents_register_device(clk);
-
-	/*
-	 * For all non-boot CPUs we need to synchronize our free
-	 * running clock (TXTIMER) with the boot CPU's clock.
-	 *
-	 * While this won't be accurate, it should be close enough.
-	 */
-	if (cpu) {
-		unsigned int thread0 = cpu_2_hwthread_id[0];
-		unsigned long val;
-
-		val = core_reg_read(TXUCT_ID, TXTIMER_REGNUM, thread0);
-		__core_reg_set(TXTIMER, val);
-	}
-	return 0;
-}
-
-int __init metag_generic_timer_init(void)
-{
-	/*
-	 * On Meta 2 SoCs, the actual frequency of the timer is based on the
-	 * Meta core clock speed divided by an integer, so it is only
-	 * approximately 1MHz. Calculating the real frequency here drastically
-	 * reduces clock skew on these SoCs.
-	 */
-#ifdef CONFIG_METAG_META21
-	hwtimer_freq = get_coreclock() / (metag_in32(EXPAND_TIMER_DIV) + 1);
-#endif
-	pr_info("Timer frequency: %u Hz\n", hwtimer_freq);
-
-	clocksource_register_hz(&clocksource_metag, hwtimer_freq);
-
-	setup_irq(tbisig_map(TBID_SIGNUM_TRT), &metag_timer_irq);
-
-	/* Hook cpu boot to configure the CPU's timers */
-	return cpuhp_setup_state(CPUHP_AP_METAG_TIMER_STARTING,
-				 "clockevents/metag:starting",
-				 arch_timer_starting_cpu, NULL);
-}
diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig
index e2954fb86d65..68ceac7617ff 100644
--- a/drivers/i2c/busses/Kconfig
+++ b/drivers/i2c/busses/Kconfig
@@ -637,7 +637,7 @@ config I2C_IBM_IIC
 
 config I2C_IMG
 	tristate "Imagination Technologies I2C SCB Controller"
-	depends on MIPS || METAG || COMPILE_TEST
+	depends on MIPS || COMPILE_TEST
 	help
 	  Say Y here if you want to use the IMG I2C SCB controller,
 	  available on the TZ1090 and other IMG SoCs.
diff --git a/drivers/irqchip/Makefile b/drivers/irqchip/Makefile
index d27e3e3619e0..b5b1f4c93413 100644
--- a/drivers/irqchip/Makefile
+++ b/drivers/irqchip/Makefile
@@ -15,8 +15,6 @@ obj-$(CONFIG_IRQ_MXS)			+= irq-mxs.o
 obj-$(CONFIG_ARCH_TEGRA)		+= irq-tegra.o
 obj-$(CONFIG_ARCH_S3C24XX)		+= irq-s3c24xx.o
 obj-$(CONFIG_DW_APB_ICTL)		+= irq-dw-apb-ictl.o
-obj-$(CONFIG_METAG)			+= irq-metag-ext.o
-obj-$(CONFIG_METAG_PERFCOUNTER_IRQS)	+= irq-metag.o
 obj-$(CONFIG_CLPS711X_IRQCHIP)		+= irq-clps711x.o
 obj-$(CONFIG_OMPIC)			+= irq-ompic.o
 obj-$(CONFIG_OR1K_PIC)			+= irq-or1k-pic.o
diff --git a/drivers/irqchip/irq-metag-ext.c b/drivers/irqchip/irq-metag-ext.c
deleted file mode 100644
index e67483161f0f..000000000000
--- a/drivers/irqchip/irq-metag-ext.c
+++ /dev/null
@@ -1,871 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * Meta External interrupt code.
- *
- * Copyright (C) 2005-2012 Imagination Technologies Ltd.
- *
- * External interrupts on Meta are configured at two-levels, in the CPU core and
- * in the external trigger block. Interrupts from SoC peripherals are
- * multiplexed onto a single Meta CPU "trigger" - traditionally it has always
- * been trigger 2 (TR2). For info on how de-multiplexing happens check out
- * meta_intc_irq_demux().
- */
-
-#include <linux/interrupt.h>
-#include <linux/irqchip/metag-ext.h>
-#include <linux/irqdomain.h>
-#include <linux/io.h>
-#include <linux/of.h>
-#include <linux/slab.h>
-#include <linux/syscore_ops.h>
-
-#include <asm/irq.h>
-#include <asm/hwthread.h>
-
-#define HWSTAT_STRIDE 8
-#define HWVEC_BLK_STRIDE 0x1000
-
-/**
- * struct meta_intc_priv - private meta external interrupt data
- * @nr_banks:		Number of interrupt banks
- * @domain:		IRQ domain for all banks of external IRQs
- * @unmasked:		Record of unmasked IRQs
- * @levels_altered:	Record of altered level bits
- */
-struct meta_intc_priv {
-	unsigned int		nr_banks;
-	struct irq_domain	*domain;
-
-	unsigned long		unmasked[4];
-
-#ifdef CONFIG_METAG_SUSPEND_MEM
-	unsigned long		levels_altered[4];
-#endif
-};
-
-/* Private data for the one and only external interrupt controller */
-static struct meta_intc_priv meta_intc_priv;
-
-/**
- * meta_intc_offset() - Get the offset into the bank of a hardware IRQ number
- * @hw:		Hardware IRQ number (within external trigger block)
- *
- * Returns:	Bit offset into the IRQ's bank registers
- */
-static unsigned int meta_intc_offset(irq_hw_number_t hw)
-{
-	return hw & 0x1f;
-}
-
-/**
- * meta_intc_bank() - Get the bank number of a hardware IRQ number
- * @hw:		Hardware IRQ number (within external trigger block)
- *
- * Returns:	Bank number indicating which register the IRQ's bits are
- */
-static unsigned int meta_intc_bank(irq_hw_number_t hw)
-{
-	return hw >> 5;
-}
-
-/**
- * meta_intc_stat_addr() - Get the address of a HWSTATEXT register
- * @hw:		Hardware IRQ number (within external trigger block)
- *
- * Returns:	Address of a HWSTATEXT register containing the status bit for
- *		the specified hardware IRQ number
- */
-static void __iomem *meta_intc_stat_addr(irq_hw_number_t hw)
-{
-	return (void __iomem *)(HWSTATEXT +
-				HWSTAT_STRIDE * meta_intc_bank(hw));
-}
-
-/**
- * meta_intc_level_addr() - Get the address of a HWLEVELEXT register
- * @hw:		Hardware IRQ number (within external trigger block)
- *
- * Returns:	Address of a HWLEVELEXT register containing the sense bit for
- *		the specified hardware IRQ number
- */
-static void __iomem *meta_intc_level_addr(irq_hw_number_t hw)
-{
-	return (void __iomem *)(HWLEVELEXT +
-				HWSTAT_STRIDE * meta_intc_bank(hw));
-}
-
-/**
- * meta_intc_mask_addr() - Get the address of a HWMASKEXT register
- * @hw:		Hardware IRQ number (within external trigger block)
- *
- * Returns:	Address of a HWMASKEXT register containing the mask bit for the
- *		specified hardware IRQ number
- */
-static void __iomem *meta_intc_mask_addr(irq_hw_number_t hw)
-{
-	return (void __iomem *)(HWMASKEXT +
-				HWSTAT_STRIDE * meta_intc_bank(hw));
-}
-
-/**
- * meta_intc_vec_addr() - Get the vector address of a hardware interrupt
- * @hw:		Hardware IRQ number (within external trigger block)
- *
- * Returns:	Address of a HWVECEXT register controlling the core trigger to
- *		vector the IRQ onto
- */
-static inline void __iomem *meta_intc_vec_addr(irq_hw_number_t hw)
-{
-	return (void __iomem *)(HWVEC0EXT +
-				HWVEC_BLK_STRIDE * meta_intc_bank(hw) +
-				HWVECnEXT_STRIDE * meta_intc_offset(hw));
-}
-
-/**
- * meta_intc_startup_irq() - set up an external irq
- * @data:	data for the external irq to start up
- *
- * Multiplex interrupts for irq onto TR2. Clear any pending interrupts and
- * unmask irq, both using the appropriate callbacks.
- */
-static unsigned int meta_intc_startup_irq(struct irq_data *data)
-{
-	irq_hw_number_t hw = data->hwirq;
-	void __iomem *vec_addr = meta_intc_vec_addr(hw);
-	int thread = hard_processor_id();
-
-	/* Perform any necessary acking. */
-	if (data->chip->irq_ack)
-		data->chip->irq_ack(data);
-
-	/* Wire up this interrupt to the core with HWVECxEXT. */
-	metag_out32(TBI_TRIG_VEC(TBID_SIGNUM_TR2(thread)), vec_addr);
-
-	/* Perform any necessary unmasking. */
-	data->chip->irq_unmask(data);
-
-	return 0;
-}
-
-/**
- * meta_intc_shutdown_irq() - turn off an external irq
- * @data:	data for the external irq to turn off
- *
- * Mask irq using the appropriate callback and stop muxing it onto TR2.
- */
-static void meta_intc_shutdown_irq(struct irq_data *data)
-{
-	irq_hw_number_t hw = data->hwirq;
-	void __iomem *vec_addr = meta_intc_vec_addr(hw);
-
-	/* Mask the IRQ */
-	data->chip->irq_mask(data);
-
-	/*
-	 * Disable the IRQ at the core by removing the interrupt from
-	 * the HW vector mapping.
-	 */
-	metag_out32(0, vec_addr);
-}
-
-/**
- * meta_intc_ack_irq() - acknowledge an external irq
- * @data:	data for the external irq to ack
- *
- * Clear down an edge interrupt in the status register.
- */
-static void meta_intc_ack_irq(struct irq_data *data)
-{
-	irq_hw_number_t hw = data->hwirq;
-	unsigned int bit = 1 << meta_intc_offset(hw);
-	void __iomem *stat_addr = meta_intc_stat_addr(hw);
-
-	/* Ack the int, if it is still 'on'.
-	 * NOTE - this only works for edge triggered interrupts.
-	 */
-	if (metag_in32(stat_addr) & bit)
-		metag_out32(bit, stat_addr);
-}
-
-/**
- * record_irq_is_masked() - record the IRQ masked so it doesn't get handled
- * @data:	data for the external irq to record
- *
- * This should get called whenever an external IRQ is masked (by whichever
- * callback is used). It records the IRQ masked so that it doesn't get handled
- * if it still shows up in the status register.
- */
-static void record_irq_is_masked(struct irq_data *data)
-{
-	struct meta_intc_priv *priv = &meta_intc_priv;
-	irq_hw_number_t hw = data->hwirq;
-
-	clear_bit(meta_intc_offset(hw), &priv->unmasked[meta_intc_bank(hw)]);
-}
-
-/**
- * record_irq_is_unmasked() - record the IRQ unmasked so it can be handled
- * @data:	data for the external irq to record
- *
- * This should get called whenever an external IRQ is unmasked (by whichever
- * callback is used). It records the IRQ unmasked so that it gets handled if it
- * shows up in the status register.
- */
-static void record_irq_is_unmasked(struct irq_data *data)
-{
-	struct meta_intc_priv *priv = &meta_intc_priv;
-	irq_hw_number_t hw = data->hwirq;
-
-	set_bit(meta_intc_offset(hw), &priv->unmasked[meta_intc_bank(hw)]);
-}
-
-/*
- * For use by wrapper IRQ drivers
- */
-
-/**
- * meta_intc_mask_irq_simple() - minimal mask used by wrapper IRQ drivers
- * @data:	data for the external irq being masked
- *
- * This should be called by any wrapper IRQ driver mask functions. it doesn't do
- * any masking but records the IRQ as masked so that the core code knows the
- * mask has taken place. It is the callers responsibility to ensure that the IRQ
- * won't trigger an interrupt to the core.
- */
-void meta_intc_mask_irq_simple(struct irq_data *data)
-{
-	record_irq_is_masked(data);
-}
-
-/**
- * meta_intc_unmask_irq_simple() - minimal unmask used by wrapper IRQ drivers
- * @data:	data for the external irq being unmasked
- *
- * This should be called by any wrapper IRQ driver unmask functions. it doesn't
- * do any unmasking but records the IRQ as unmasked so that the core code knows
- * the unmask has taken place. It is the callers responsibility to ensure that
- * the IRQ can now trigger an interrupt to the core.
- */
-void meta_intc_unmask_irq_simple(struct irq_data *data)
-{
-	record_irq_is_unmasked(data);
-}
-
-
-/**
- * meta_intc_mask_irq() - mask an external irq using HWMASKEXT
- * @data:	data for the external irq to mask
- *
- * This is a default implementation of a mask function which makes use of the
- * HWMASKEXT registers available in newer versions.
- *
- * Earlier versions without these registers should use SoC level IRQ masking
- * which call the meta_intc_*_simple() functions above, or if that isn't
- * available should use the fallback meta_intc_*_nomask() functions below.
- */
-static void meta_intc_mask_irq(struct irq_data *data)
-{
-	irq_hw_number_t hw = data->hwirq;
-	unsigned int bit = 1 << meta_intc_offset(hw);
-	void __iomem *mask_addr = meta_intc_mask_addr(hw);
-	unsigned long flags;
-
-	record_irq_is_masked(data);
-
-	/* update the interrupt mask */
-	__global_lock2(flags);
-	metag_out32(metag_in32(mask_addr) & ~bit, mask_addr);
-	__global_unlock2(flags);
-}
-
-/**
- * meta_intc_unmask_irq() - unmask an external irq using HWMASKEXT
- * @data:	data for the external irq to unmask
- *
- * This is a default implementation of an unmask function which makes use of the
- * HWMASKEXT registers available on new versions. It should be paired with
- * meta_intc_mask_irq() above.
- */
-static void meta_intc_unmask_irq(struct irq_data *data)
-{
-	irq_hw_number_t hw = data->hwirq;
-	unsigned int bit = 1 << meta_intc_offset(hw);
-	void __iomem *mask_addr = meta_intc_mask_addr(hw);
-	unsigned long flags;
-
-	record_irq_is_unmasked(data);
-
-	/* update the interrupt mask */
-	__global_lock2(flags);
-	metag_out32(metag_in32(mask_addr) | bit, mask_addr);
-	__global_unlock2(flags);
-}
-
-/**
- * meta_intc_mask_irq_nomask() - mask an external irq by unvectoring
- * @data:	data for the external irq to mask
- *
- * This is the version of the mask function for older versions which don't have
- * HWMASKEXT registers, or a SoC level means of masking IRQs. Instead the IRQ is
- * unvectored from the core and retriggered if necessary later.
- */
-static void meta_intc_mask_irq_nomask(struct irq_data *data)
-{
-	irq_hw_number_t hw = data->hwirq;
-	void __iomem *vec_addr = meta_intc_vec_addr(hw);
-
-	record_irq_is_masked(data);
-
-	/* there is no interrupt mask, so unvector the interrupt */
-	metag_out32(0, vec_addr);
-}
-
-/**
- * meta_intc_unmask_edge_irq_nomask() - unmask an edge irq by revectoring
- * @data:	data for the external irq to unmask
- *
- * This is the version of the unmask function for older versions which don't
- * have HWMASKEXT registers, or a SoC level means of masking IRQs. Instead the
- * IRQ is revectored back to the core and retriggered if necessary.
- *
- * The retriggering done by this function is specific to edge interrupts.
- */
-static void meta_intc_unmask_edge_irq_nomask(struct irq_data *data)
-{
-	irq_hw_number_t hw = data->hwirq;
-	unsigned int bit = 1 << meta_intc_offset(hw);
-	void __iomem *stat_addr = meta_intc_stat_addr(hw);
-	void __iomem *vec_addr = meta_intc_vec_addr(hw);
-	unsigned int thread = hard_processor_id();
-
-	record_irq_is_unmasked(data);
-
-	/* there is no interrupt mask, so revector the interrupt */
-	metag_out32(TBI_TRIG_VEC(TBID_SIGNUM_TR2(thread)), vec_addr);
-
-	/*
-	 * Re-trigger interrupt
-	 *
-	 * Writing a 1 toggles, and a 0->1 transition triggers. We only
-	 * retrigger if the status bit is already set, which means we
-	 * need to clear it first. Retriggering is fundamentally racy
-	 * because if the interrupt fires again after we clear it we
-	 * could end up clearing it again and the interrupt handler
-	 * thinking it hasn't fired. Therefore we need to keep trying to
-	 * retrigger until the bit is set.
-	 */
-	if (metag_in32(stat_addr) & bit) {
-		metag_out32(bit, stat_addr);
-		while (!(metag_in32(stat_addr) & bit))
-			metag_out32(bit, stat_addr);
-	}
-}
-
-/**
- * meta_intc_unmask_level_irq_nomask() - unmask a level irq by revectoring
- * @data:	data for the external irq to unmask
- *
- * This is the version of the unmask function for older versions which don't
- * have HWMASKEXT registers, or a SoC level means of masking IRQs. Instead the
- * IRQ is revectored back to the core and retriggered if necessary.
- *
- * The retriggering done by this function is specific to level interrupts.
- */
-static void meta_intc_unmask_level_irq_nomask(struct irq_data *data)
-{
-	irq_hw_number_t hw = data->hwirq;
-	unsigned int bit = 1 << meta_intc_offset(hw);
-	void __iomem *stat_addr = meta_intc_stat_addr(hw);
-	void __iomem *vec_addr = meta_intc_vec_addr(hw);
-	unsigned int thread = hard_processor_id();
-
-	record_irq_is_unmasked(data);
-
-	/* there is no interrupt mask, so revector the interrupt */
-	metag_out32(TBI_TRIG_VEC(TBID_SIGNUM_TR2(thread)), vec_addr);
-
-	/* Re-trigger interrupt */
-	/* Writing a 1 triggers interrupt */
-	if (metag_in32(stat_addr) & bit)
-		metag_out32(bit, stat_addr);
-}
-
-/**
- * meta_intc_irq_set_type() - set the type of an external irq
- * @data:	data for the external irq to set the type of
- * @flow_type:	new irq flow type
- *
- * Set the flow type of an external interrupt. This updates the irq chip and irq
- * handler depending on whether the irq is edge or level sensitive (the polarity
- * is ignored), and also sets up the bit in HWLEVELEXT so the hardware knows
- * when to trigger.
- */
-static int meta_intc_irq_set_type(struct irq_data *data, unsigned int flow_type)
-{
-#ifdef CONFIG_METAG_SUSPEND_MEM
-	struct meta_intc_priv *priv = &meta_intc_priv;
-#endif
-	irq_hw_number_t hw = data->hwirq;
-	unsigned int bit = 1 << meta_intc_offset(hw);
-	void __iomem *level_addr = meta_intc_level_addr(hw);
-	unsigned long flags;
-	unsigned int level;
-
-	/* update the chip/handler */
-	if (flow_type & IRQ_TYPE_LEVEL_MASK)
-		irq_set_chip_handler_name_locked(data, &meta_intc_level_chip,
-						 handle_level_irq, NULL);
-	else
-		irq_set_chip_handler_name_locked(data, &meta_intc_edge_chip,
-						 handle_edge_irq, NULL);
-
-	/* and clear/set the bit in HWLEVELEXT */
-	__global_lock2(flags);
-	level = metag_in32(level_addr);
-	if (flow_type & IRQ_TYPE_LEVEL_MASK)
-		level |= bit;
-	else
-		level &= ~bit;
-	metag_out32(level, level_addr);
-#ifdef CONFIG_METAG_SUSPEND_MEM
-	priv->levels_altered[meta_intc_bank(hw)] |= bit;
-#endif
-	__global_unlock2(flags);
-
-	return 0;
-}
-
-/**
- * meta_intc_irq_demux() - external irq de-multiplexer
- * @desc:	the interrupt description structure for this irq
- *
- * The cpu receives an interrupt on TR2 when a SoC interrupt has occurred. It is
- * this function's job to demux this irq and figure out exactly which external
- * irq needs servicing.
- *
- * Whilst using TR2 to detect external interrupts is a software convention it is
- * (hopefully) unlikely to change.
- */
-static void meta_intc_irq_demux(struct irq_desc *desc)
-{
-	struct meta_intc_priv *priv = &meta_intc_priv;
-	irq_hw_number_t hw;
-	unsigned int bank, irq_no, status;
-	void __iomem *stat_addr = meta_intc_stat_addr(0);
-
-	/*
-	 * Locate which interrupt has caused our handler to run.
-	 */
-	for (bank = 0; bank < priv->nr_banks; ++bank) {
-		/* Which interrupts are currently pending in this bank? */
-recalculate:
-		status = metag_in32(stat_addr) & priv->unmasked[bank];
-
-		for (hw = bank*32; status; status >>= 1, ++hw) {
-			if (status & 0x1) {
-				/*
-				 * Map the hardware IRQ number to a virtual
-				 * Linux IRQ number.
-				 */
-				irq_no = irq_linear_revmap(priv->domain, hw);
-
-				/*
-				 * Only fire off external interrupts that are
-				 * registered to be handled by the kernel.
-				 * Other external interrupts are probably being
-				 * handled by other Meta hardware threads.
-				 */
-				generic_handle_irq(irq_no);
-
-				/*
-				 * The handler may have re-enabled interrupts
-				 * which could have caused a nested invocation
-				 * of this code and make the copy of the
-				 * status register we are using invalid.
-				 */
-				goto recalculate;
-			}
-		}
-		stat_addr += HWSTAT_STRIDE;
-	}
-}
-
-#ifdef CONFIG_SMP
-/**
- * meta_intc_set_affinity() - set the affinity for an interrupt
- * @data:	data for the external irq to set the affinity of
- * @cpumask:	cpu mask representing cpus which can handle the interrupt
- * @force:	whether to force (ignored)
- *
- * Revector the specified external irq onto a specific cpu's TR2 trigger, so
- * that that cpu tends to be the one who handles it.
- */
-static int meta_intc_set_affinity(struct irq_data *data,
-				  const struct cpumask *cpumask, bool force)
-{
-	irq_hw_number_t hw = data->hwirq;
-	void __iomem *vec_addr = meta_intc_vec_addr(hw);
-	unsigned int cpu, thread;
-
-	/*
-	 * Wire up this interrupt from HWVECxEXT to the Meta core.
-	 *
-	 * Note that we can't wire up HWVECxEXT to interrupt more than
-	 * one cpu (the interrupt code doesn't support it), so we just
-	 * pick the first cpu we find in 'cpumask'.
-	 */
-	cpu = cpumask_any_and(cpumask, cpu_online_mask);
-	thread = cpu_2_hwthread_id[cpu];
-
-	metag_out32(TBI_TRIG_VEC(TBID_SIGNUM_TR2(thread)), vec_addr);
-
-	irq_data_update_effective_affinity(data, cpumask_of(cpu));
-
-	return 0;
-}
-#else
-#define meta_intc_set_affinity	NULL
-#endif
-
-#ifdef CONFIG_PM_SLEEP
-#define META_INTC_CHIP_FLAGS	(IRQCHIP_MASK_ON_SUSPEND \
-				| IRQCHIP_SKIP_SET_WAKE)
-#else
-#define META_INTC_CHIP_FLAGS	0
-#endif
-
-/* public edge/level irq chips which SoCs can override */
-
-struct irq_chip meta_intc_edge_chip = {
-	.irq_startup		= meta_intc_startup_irq,
-	.irq_shutdown		= meta_intc_shutdown_irq,
-	.irq_ack		= meta_intc_ack_irq,
-	.irq_mask		= meta_intc_mask_irq,
-	.irq_unmask		= meta_intc_unmask_irq,
-	.irq_set_type		= meta_intc_irq_set_type,
-	.irq_set_affinity	= meta_intc_set_affinity,
-	.flags			= META_INTC_CHIP_FLAGS,
-};
-
-struct irq_chip meta_intc_level_chip = {
-	.irq_startup		= meta_intc_startup_irq,
-	.irq_shutdown		= meta_intc_shutdown_irq,
-	.irq_set_type		= meta_intc_irq_set_type,
-	.irq_mask		= meta_intc_mask_irq,
-	.irq_unmask		= meta_intc_unmask_irq,
-	.irq_set_affinity	= meta_intc_set_affinity,
-	.flags			= META_INTC_CHIP_FLAGS,
-};
-
-/**
- * meta_intc_map() - map an external irq
- * @d:		irq domain of external trigger block
- * @irq:	virtual irq number
- * @hw:		hardware irq number within external trigger block
- *
- * This sets up a virtual irq for a specified hardware interrupt. The irq chip
- * and handler is configured, using the HWLEVELEXT registers to determine
- * edge/level flow type. These registers will have been set when the irq type is
- * set (or set to a default at init time).
- */
-static int meta_intc_map(struct irq_domain *d, unsigned int irq,
-			 irq_hw_number_t hw)
-{
-	unsigned int bit = 1 << meta_intc_offset(hw);
-	void __iomem *level_addr = meta_intc_level_addr(hw);
-
-	/* Go by the current sense in the HWLEVELEXT register */
-	if (metag_in32(level_addr) & bit)
-		irq_set_chip_and_handler(irq, &meta_intc_level_chip,
-					 handle_level_irq);
-	else
-		irq_set_chip_and_handler(irq, &meta_intc_edge_chip,
-					 handle_edge_irq);
-
-	irqd_set_single_target(irq_desc_get_irq_data(irq_to_desc(irq)));
-	return 0;
-}
-
-static const struct irq_domain_ops meta_intc_domain_ops = {
-	.map = meta_intc_map,
-	.xlate = irq_domain_xlate_twocell,
-};
-
-#ifdef CONFIG_METAG_SUSPEND_MEM
-
-/**
- * struct meta_intc_context - suspend context
- * @levels:	State of HWLEVELEXT registers
- * @masks:	State of HWMASKEXT registers
- * @vectors:	State of HWVECEXT registers
- * @txvecint:	State of TxVECINT registers
- *
- * This structure stores the IRQ state across suspend.
- */
-struct meta_intc_context {
-	u32 levels[4];
-	u32 masks[4];
-	u8 vectors[4*32];
-
-	u8 txvecint[4][4];
-};
-
-/* suspend context */
-static struct meta_intc_context *meta_intc_context;
-
-/**
- * meta_intc_suspend() - store irq state
- *
- * To avoid interfering with other threads we only save the IRQ state of IRQs in
- * use by Linux.
- */
-static int meta_intc_suspend(void)
-{
-	struct meta_intc_priv *priv = &meta_intc_priv;
-	int i, j;
-	irq_hw_number_t hw;
-	unsigned int bank;
-	unsigned long flags;
-	struct meta_intc_context *context;
-	void __iomem *level_addr, *mask_addr, *vec_addr;
-	u32 mask, bit;
-
-	context = kzalloc(sizeof(*context), GFP_ATOMIC);
-	if (!context)
-		return -ENOMEM;
-
-	hw = 0;
-	level_addr = meta_intc_level_addr(0);
-	mask_addr = meta_intc_mask_addr(0);
-	for (bank = 0; bank < priv->nr_banks; ++bank) {
-		vec_addr = meta_intc_vec_addr(hw);
-
-		/* create mask of interrupts in use */
-		mask = 0;
-		for (bit = 1; bit; bit <<= 1) {
-			i = irq_linear_revmap(priv->domain, hw);
-			/* save mapped irqs which are enabled or have actions */
-			if (i && (!irqd_irq_disabled(irq_get_irq_data(i)) ||
-				  irq_has_action(i))) {
-				mask |= bit;
-
-				/* save trigger vector */
-				context->vectors[hw] = metag_in32(vec_addr);
-			}
-
-			++hw;
-			vec_addr += HWVECnEXT_STRIDE;
-		}
-
-		/* save level state if any IRQ levels altered */
-		if (priv->levels_altered[bank])
-			context->levels[bank] = metag_in32(level_addr);
-		/* save mask state if any IRQs in use */
-		if (mask)
-			context->masks[bank] = metag_in32(mask_addr);
-
-		level_addr += HWSTAT_STRIDE;
-		mask_addr += HWSTAT_STRIDE;
-	}
-
-	/* save trigger matrixing */
-	__global_lock2(flags);
-	for (i = 0; i < 4; ++i)
-		for (j = 0; j < 4; ++j)
-			context->txvecint[i][j] = metag_in32(T0VECINT_BHALT +
-							     TnVECINT_STRIDE*i +
-							     8*j);
-	__global_unlock2(flags);
-
-	meta_intc_context = context;
-	return 0;
-}
-
-/**
- * meta_intc_resume() - restore saved irq state
- *
- * Restore the saved IRQ state and drop it.
- */
-static void meta_intc_resume(void)
-{
-	struct meta_intc_priv *priv = &meta_intc_priv;
-	int i, j;
-	irq_hw_number_t hw;
-	unsigned int bank;
-	unsigned long flags;
-	struct meta_intc_context *context = meta_intc_context;
-	void __iomem *level_addr, *mask_addr, *vec_addr;
-	u32 mask, bit, tmp;
-
-	meta_intc_context = NULL;
-
-	hw = 0;
-	level_addr = meta_intc_level_addr(0);
-	mask_addr = meta_intc_mask_addr(0);
-	for (bank = 0; bank < priv->nr_banks; ++bank) {
-		vec_addr = meta_intc_vec_addr(hw);
-
-		/* create mask of interrupts in use */
-		mask = 0;
-		for (bit = 1; bit; bit <<= 1) {
-			i = irq_linear_revmap(priv->domain, hw);
-			/* restore mapped irqs, enabled or with actions */
-			if (i && (!irqd_irq_disabled(irq_get_irq_data(i)) ||
-				  irq_has_action(i))) {
-				mask |= bit;
-
-				/* restore trigger vector */
-				metag_out32(context->vectors[hw], vec_addr);
-			}
-
-			++hw;
-			vec_addr += HWVECnEXT_STRIDE;
-		}
-
-		if (mask) {
-			/* restore mask state */
-			__global_lock2(flags);
-			tmp = metag_in32(mask_addr);
-			tmp = (tmp & ~mask) | (context->masks[bank] & mask);
-			metag_out32(tmp, mask_addr);
-			__global_unlock2(flags);
-		}
-
-		mask = priv->levels_altered[bank];
-		if (mask) {
-			/* restore level state */
-			__global_lock2(flags);
-			tmp = metag_in32(level_addr);
-			tmp = (tmp & ~mask) | (context->levels[bank] & mask);
-			metag_out32(tmp, level_addr);
-			__global_unlock2(flags);
-		}
-
-		level_addr += HWSTAT_STRIDE;
-		mask_addr += HWSTAT_STRIDE;
-	}
-
-	/* restore trigger matrixing */
-	__global_lock2(flags);
-	for (i = 0; i < 4; ++i) {
-		for (j = 0; j < 4; ++j) {
-			metag_out32(context->txvecint[i][j],
-				    T0VECINT_BHALT +
-				    TnVECINT_STRIDE*i +
-				    8*j);
-		}
-	}
-	__global_unlock2(flags);
-
-	kfree(context);
-}
-
-static struct syscore_ops meta_intc_syscore_ops = {
-	.suspend = meta_intc_suspend,
-	.resume = meta_intc_resume,
-};
-
-static void __init meta_intc_init_syscore_ops(struct meta_intc_priv *priv)
-{
-	register_syscore_ops(&meta_intc_syscore_ops);
-}
-#else
-#define meta_intc_init_syscore_ops(priv) do {} while (0)
-#endif
-
-/**
- * meta_intc_init_cpu() - register with a Meta cpu
- * @priv:	private interrupt controller data
- * @cpu:	the CPU to register on
- *
- * Configure @cpu's TR2 irq so that we can demux external irqs.
- */
-static void __init meta_intc_init_cpu(struct meta_intc_priv *priv, int cpu)
-{
-	unsigned int thread = cpu_2_hwthread_id[cpu];
-	unsigned int signum = TBID_SIGNUM_TR2(thread);
-	int irq = tbisig_map(signum);
-
-	/* Register the multiplexed IRQ handler */
-	irq_set_chained_handler(irq, meta_intc_irq_demux);
-	irq_set_irq_type(irq, IRQ_TYPE_LEVEL_LOW);
-}
-
-/**
- * meta_intc_no_mask() - indicate lack of HWMASKEXT registers
- *
- * Called from SoC code (or init code below) to dynamically indicate the lack of
- * HWMASKEXT registers (for example depending on some SoC revision register).
- * This alters the irq mask and unmask callbacks to use the fallback
- * unvectoring/retriggering technique instead of using HWMASKEXT registers.
- */
-void __init meta_intc_no_mask(void)
-{
-	meta_intc_edge_chip.irq_mask	= meta_intc_mask_irq_nomask;
-	meta_intc_edge_chip.irq_unmask	= meta_intc_unmask_edge_irq_nomask;
-	meta_intc_level_chip.irq_mask	= meta_intc_mask_irq_nomask;
-	meta_intc_level_chip.irq_unmask	= meta_intc_unmask_level_irq_nomask;
-}
-
-/**
- * init_external_IRQ() - initialise the external irq controller
- *
- * Set up the external irq controller using device tree properties. This is
- * called from init_IRQ().
- */
-int __init init_external_IRQ(void)
-{
-	struct meta_intc_priv *priv = &meta_intc_priv;
-	struct device_node *node;
-	int ret, cpu;
-	u32 val;
-	bool no_masks = false;
-
-	node = of_find_compatible_node(NULL, NULL, "img,meta-intc");
-	if (!node)
-		return -ENOENT;
-
-	/* Get number of banks */
-	ret = of_property_read_u32(node, "num-banks", &val);
-	if (ret) {
-		pr_err("meta-intc: No num-banks property found\n");
-		return ret;
-	}
-	if (val < 1 || val > 4) {
-		pr_err("meta-intc: num-banks (%u) out of range\n", val);
-		return -EINVAL;
-	}
-	priv->nr_banks = val;
-
-	/* Are any mask registers present? */
-	if (of_get_property(node, "no-mask", NULL))
-		no_masks = true;
-
-	/* No HWMASKEXT registers present? */
-	if (no_masks)
-		meta_intc_no_mask();
-
-	/* Set up an IRQ domain */
-	/*
-	 * This is a legacy IRQ domain for now until all the platform setup code
-	 * has been converted to devicetree.
-	 */
-	priv->domain = irq_domain_add_linear(node, priv->nr_banks*32,
-					     &meta_intc_domain_ops, priv);
-	if (unlikely(!priv->domain)) {
-		pr_err("meta-intc: cannot add IRQ domain\n");
-		return -ENOMEM;
-	}
-
-	/* Setup TR2 for all cpus. */
-	for_each_possible_cpu(cpu)
-		meta_intc_init_cpu(priv, cpu);
-
-	/* Set up system suspend/resume callbacks */
-	meta_intc_init_syscore_ops(priv);
-
-	pr_info("meta-intc: External IRQ controller initialised (%u IRQs)\n",
-		priv->nr_banks*32);
-
-	return 0;
-}
diff --git a/drivers/irqchip/irq-metag.c b/drivers/irqchip/irq-metag.c
deleted file mode 100644
index 857b946747eb..000000000000
--- a/drivers/irqchip/irq-metag.c
+++ /dev/null
@@ -1,343 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * Meta internal (HWSTATMETA) interrupt code.
- *
- * Copyright (C) 2011-2012 Imagination Technologies Ltd.
- *
- * This code is based on the code in SoC/common/irq.c and SoC/comet/irq.c
- * The code base could be generalised/merged as a lot of the functionality is
- * similar. Until this is done, we try to keep the code simple here.
- */
-
-#include <linux/interrupt.h>
-#include <linux/io.h>
-#include <linux/irqdomain.h>
-
-#include <asm/irq.h>
-#include <asm/hwthread.h>
-
-#define PERF0VECINT		0x04820580
-#define PERF1VECINT		0x04820588
-#define PERF0TRIG_OFFSET	16
-#define PERF1TRIG_OFFSET	17
-
-/**
- * struct metag_internal_irq_priv - private meta internal interrupt data
- * @domain:		IRQ domain for all internal Meta IRQs (HWSTATMETA)
- * @unmasked:		Record of unmasked IRQs
- */
-struct metag_internal_irq_priv {
-	struct irq_domain	*domain;
-
-	unsigned long		unmasked;
-};
-
-/* Private data for the one and only internal interrupt controller */
-static struct metag_internal_irq_priv metag_internal_irq_priv;
-
-static unsigned int metag_internal_irq_startup(struct irq_data *data);
-static void metag_internal_irq_shutdown(struct irq_data *data);
-static void metag_internal_irq_ack(struct irq_data *data);
-static void metag_internal_irq_mask(struct irq_data *data);
-static void metag_internal_irq_unmask(struct irq_data *data);
-#ifdef CONFIG_SMP
-static int metag_internal_irq_set_affinity(struct irq_data *data,
-			const struct cpumask *cpumask, bool force);
-#endif
-
-static struct irq_chip internal_irq_edge_chip = {
-	.name = "HWSTATMETA-IRQ",
-	.irq_startup = metag_internal_irq_startup,
-	.irq_shutdown = metag_internal_irq_shutdown,
-	.irq_ack = metag_internal_irq_ack,
-	.irq_mask = metag_internal_irq_mask,
-	.irq_unmask = metag_internal_irq_unmask,
-#ifdef CONFIG_SMP
-	.irq_set_affinity = metag_internal_irq_set_affinity,
-#endif
-};
-
-/*
- *	metag_hwvec_addr - get the address of *VECINT regs of irq
- *
- *	This function is a table of supported triggers on HWSTATMETA
- *	Could do with a structure, but better keep it simple. Changes
- *	in this code should be rare.
- */
-static inline void __iomem *metag_hwvec_addr(irq_hw_number_t hw)
-{
-	void __iomem *addr;
-
-	switch (hw) {
-	case PERF0TRIG_OFFSET:
-		addr = (void __iomem *)PERF0VECINT;
-		break;
-	case PERF1TRIG_OFFSET:
-		addr = (void __iomem *)PERF1VECINT;
-		break;
-	default:
-		addr = NULL;
-		break;
-	}
-	return addr;
-}
-
-/*
- *	metag_internal_startup - setup an internal irq
- *	@irq:	the irq to startup
- *
- *	Multiplex interrupts for @irq onto TR1. Clear any pending
- *	interrupts.
- */
-static unsigned int metag_internal_irq_startup(struct irq_data *data)
-{
-	/* Clear (toggle) the bit in HWSTATMETA for our interrupt. */
-	metag_internal_irq_ack(data);
-
-	/* Enable the interrupt by unmasking it */
-	metag_internal_irq_unmask(data);
-
-	return 0;
-}
-
-/*
- *	metag_internal_irq_shutdown - turn off the irq
- *	@irq:	the irq number to turn off
- *
- *	Mask @irq and clear any pending interrupts.
- *	Stop muxing @irq onto TR1.
- */
-static void metag_internal_irq_shutdown(struct irq_data *data)
-{
-	/* Disable the IRQ at the core by masking it. */
-	metag_internal_irq_mask(data);
-
-	/* Clear (toggle) the bit in HWSTATMETA for our interrupt. */
-	metag_internal_irq_ack(data);
-}
-
-/*
- *	metag_internal_irq_ack - acknowledge irq
- *	@irq:	the irq to ack
- */
-static void metag_internal_irq_ack(struct irq_data *data)
-{
-	irq_hw_number_t hw = data->hwirq;
-	unsigned int bit = 1 << hw;
-
-	if (metag_in32(HWSTATMETA) & bit)
-		metag_out32(bit, HWSTATMETA);
-}
-
-/**
- * metag_internal_irq_mask() - mask an internal irq by unvectoring
- * @data:	data for the internal irq to mask
- *
- * HWSTATMETA has no mask register. Instead the IRQ is unvectored from the core
- * and retriggered if necessary later.
- */
-static void metag_internal_irq_mask(struct irq_data *data)
-{
-	struct metag_internal_irq_priv *priv = &metag_internal_irq_priv;
-	irq_hw_number_t hw = data->hwirq;
-	void __iomem *vec_addr = metag_hwvec_addr(hw);
-
-	clear_bit(hw, &priv->unmasked);
-
-	/* there is no interrupt mask, so unvector the interrupt */
-	metag_out32(0, vec_addr);
-}
-
-/**
- * meta_intc_unmask_edge_irq_nomask() - unmask an edge irq by revectoring
- * @data:	data for the internal irq to unmask
- *
- * HWSTATMETA has no mask register. Instead the IRQ is revectored back to the
- * core and retriggered if necessary.
- */
-static void metag_internal_irq_unmask(struct irq_data *data)
-{
-	struct metag_internal_irq_priv *priv = &metag_internal_irq_priv;
-	irq_hw_number_t hw = data->hwirq;
-	unsigned int bit = 1 << hw;
-	void __iomem *vec_addr = metag_hwvec_addr(hw);
-	unsigned int thread = hard_processor_id();
-
-	set_bit(hw, &priv->unmasked);
-
-	/* there is no interrupt mask, so revector the interrupt */
-	metag_out32(TBI_TRIG_VEC(TBID_SIGNUM_TR1(thread)), vec_addr);
-
-	/*
-	 * Re-trigger interrupt
-	 *
-	 * Writing a 1 toggles, and a 0->1 transition triggers. We only
-	 * retrigger if the status bit is already set, which means we
-	 * need to clear it first. Retriggering is fundamentally racy
-	 * because if the interrupt fires again after we clear it we
-	 * could end up clearing it again and the interrupt handler
-	 * thinking it hasn't fired. Therefore we need to keep trying to
-	 * retrigger until the bit is set.
-	 */
-	if (metag_in32(HWSTATMETA) & bit) {
-		metag_out32(bit, HWSTATMETA);
-		while (!(metag_in32(HWSTATMETA) & bit))
-			metag_out32(bit, HWSTATMETA);
-	}
-}
-
-#ifdef CONFIG_SMP
-/*
- *	metag_internal_irq_set_affinity - set the affinity for an interrupt
- */
-static int metag_internal_irq_set_affinity(struct irq_data *data,
-			const struct cpumask *cpumask, bool force)
-{
-	unsigned int cpu, thread;
-	irq_hw_number_t hw = data->hwirq;
-	/*
-	 * Wire up this interrupt from *VECINT to the Meta core.
-	 *
-	 * Note that we can't wire up *VECINT to interrupt more than
-	 * one cpu (the interrupt code doesn't support it), so we just
-	 * pick the first cpu we find in 'cpumask'.
-	 */
-	cpu = cpumask_any_and(cpumask, cpu_online_mask);
-	thread = cpu_2_hwthread_id[cpu];
-
-	metag_out32(TBI_TRIG_VEC(TBID_SIGNUM_TR1(thread)),
-		    metag_hwvec_addr(hw));
-
-	return 0;
-}
-#endif
-
-/*
- *	metag_internal_irq_demux - irq de-multiplexer
- *	@irq:	the interrupt number
- *	@desc:	the interrupt description structure for this irq
- *
- *	The cpu receives an interrupt on TR1 when an interrupt has
- *	occurred. It is this function's job to demux this irq and
- *	figure out exactly which trigger needs servicing.
- */
-static void metag_internal_irq_demux(struct irq_desc *desc)
-{
-	struct metag_internal_irq_priv *priv = irq_desc_get_handler_data(desc);
-	irq_hw_number_t hw;
-	unsigned int irq_no;
-	u32 status;
-
-recalculate:
-	status = metag_in32(HWSTATMETA) & priv->unmasked;
-
-	for (hw = 0; status != 0; status >>= 1, ++hw) {
-		if (status & 0x1) {
-			/*
-			 * Map the hardware IRQ number to a virtual Linux IRQ
-			 * number.
-			 */
-			irq_no = irq_linear_revmap(priv->domain, hw);
-
-			/*
-			 * Only fire off interrupts that are
-			 * registered to be handled by the kernel.
-			 * Other interrupts are probably being
-			 * handled by other Meta hardware threads.
-			 */
-			generic_handle_irq(irq_no);
-
-			/*
-			 * The handler may have re-enabled interrupts
-			 * which could have caused a nested invocation
-			 * of this code and make the copy of the
-			 * status register we are using invalid.
-			 */
-			goto recalculate;
-		}
-	}
-}
-
-/**
- * internal_irq_map() - Map an internal meta IRQ to a virtual IRQ number.
- * @hw:		Number of the internal IRQ. Must be in range.
- *
- * Returns:	The virtual IRQ number of the Meta internal IRQ specified by
- *		@hw.
- */
-int internal_irq_map(unsigned int hw)
-{
-	struct metag_internal_irq_priv *priv = &metag_internal_irq_priv;
-	if (!priv->domain)
-		return -ENODEV;
-	return irq_create_mapping(priv->domain, hw);
-}
-
-/**
- *	metag_internal_irq_init_cpu - regsister with the Meta cpu
- *	@cpu:	the CPU to register on
- *
- *	Configure @cpu's TR1 irq so that we can demux irqs.
- */
-static void metag_internal_irq_init_cpu(struct metag_internal_irq_priv *priv,
-					int cpu)
-{
-	unsigned int thread = cpu_2_hwthread_id[cpu];
-	unsigned int signum = TBID_SIGNUM_TR1(thread);
-	int irq = tbisig_map(signum);
-
-	/* Register the multiplexed IRQ handler */
-	irq_set_chained_handler_and_data(irq, metag_internal_irq_demux, priv);
-	irq_set_irq_type(irq, IRQ_TYPE_LEVEL_LOW);
-}
-
-/**
- * metag_internal_intc_map() - map an internal irq
- * @d:		irq domain of internal trigger block
- * @irq:	virtual irq number
- * @hw:		hardware irq number within internal trigger block
- *
- * This sets up a virtual irq for a specified hardware interrupt. The irq chip
- * and handler is configured.
- */
-static int metag_internal_intc_map(struct irq_domain *d, unsigned int irq,
-				   irq_hw_number_t hw)
-{
-	/* only register interrupt if it is mapped */
-	if (!metag_hwvec_addr(hw))
-		return -EINVAL;
-
-	irq_set_chip_and_handler(irq, &internal_irq_edge_chip,
-				 handle_edge_irq);
-	return 0;
-}
-
-static const struct irq_domain_ops metag_internal_intc_domain_ops = {
-	.map	= metag_internal_intc_map,
-};
-
-/**
- *	metag_internal_irq_register - register internal IRQs
- *
- *	Register the irq chip and handler function for all internal IRQs
- */
-int __init init_internal_IRQ(void)
-{
-	struct metag_internal_irq_priv *priv = &metag_internal_irq_priv;
-	unsigned int cpu;
-
-	/* Set up an IRQ domain */
-	priv->domain = irq_domain_add_linear(NULL, 32,
-					     &metag_internal_intc_domain_ops,
-					     priv);
-	if (unlikely(!priv->domain)) {
-		pr_err("meta-internal-intc: cannot add IRQ domain\n");
-		return -ENOMEM;
-	}
-
-	/* Setup TR1 for all cpus. */
-	for_each_possible_cpu(cpu)
-		metag_internal_irq_init_cpu(priv, cpu);
-
-	return 0;
-};
diff --git a/drivers/media/rc/img-ir/Kconfig b/drivers/media/rc/img-ir/Kconfig
index a896d3c83a1c..d2c6617d468e 100644
--- a/drivers/media/rc/img-ir/Kconfig
+++ b/drivers/media/rc/img-ir/Kconfig
@@ -1,7 +1,7 @@
 config IR_IMG
 	tristate "ImgTec IR Decoder"
 	depends on RC_CORE
-	depends on METAG || MIPS || COMPILE_TEST
+	depends on MIPS || COMPILE_TEST
 	select IR_IMG_HW if !IR_IMG_RAW
 	help
 	   Say Y or M here if you want to use the ImgTec infrared decoder
diff --git a/drivers/tty/Kconfig b/drivers/tty/Kconfig
index b811442c5ce6..75a71ebcb369 100644
--- a/drivers/tty/Kconfig
+++ b/drivers/tty/Kconfig
@@ -402,19 +402,6 @@ config GOLDFISH_TTY_EARLY_CONSOLE
 	default y if GOLDFISH_TTY=y
 	select SERIAL_EARLYCON
 
-config DA_TTY
-	bool "DA TTY"
-	depends on METAG_DA
-	select SERIAL_NONSTANDARD
-	help
-	  This enables a TTY on a Dash channel.
-
-config DA_CONSOLE
-	bool "DA Console"
-	depends on DA_TTY
-	help
-	  This enables a console on a Dash channel.
-
 config MIPS_EJTAG_FDC_TTY
 	bool "MIPS EJTAG Fast Debug Channel TTY"
 	depends on MIPS_CDMM
diff --git a/drivers/tty/Makefile b/drivers/tty/Makefile
index 8ce3a8661b31..47c71f43a397 100644
--- a/drivers/tty/Makefile
+++ b/drivers/tty/Makefile
@@ -32,7 +32,6 @@ obj-$(CONFIG_SYNCLINKMP)	+= synclinkmp.o
 obj-$(CONFIG_SYNCLINK)		+= synclink.o
 obj-$(CONFIG_PPC_EPAPR_HV_BYTECHAN) += ehv_bytechan.o
 obj-$(CONFIG_GOLDFISH_TTY)	+= goldfish.o
-obj-$(CONFIG_DA_TTY)		+= metag_da.o
 obj-$(CONFIG_MIPS_EJTAG_FDC_TTY) += mips_ejtag_fdc.o
 obj-$(CONFIG_VCC)		+= vcc.o
 
diff --git a/drivers/tty/metag_da.c b/drivers/tty/metag_da.c
deleted file mode 100644
index 99eaed4b2dbc..000000000000
--- a/drivers/tty/metag_da.c
+++ /dev/null
@@ -1,665 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- *  dashtty.c - tty driver for Dash channels interface.
- *
- *  Copyright (C) 2007,2008,2012 Imagination Technologies
- */
-
-#include <linux/atomic.h>
-#include <linux/completion.h>
-#include <linux/console.h>
-#include <linux/delay.h>
-#include <linux/export.h>
-#include <linux/init.h>
-#include <linux/kernel.h>
-#include <linux/kthread.h>
-#include <linux/moduleparam.h>
-#include <linux/mutex.h>
-#include <linux/sched.h>
-#include <linux/serial.h>
-#include <linux/slab.h>
-#include <linux/spinlock.h>
-#include <linux/string.h>
-#include <linux/timer.h>
-#include <linux/tty.h>
-#include <linux/tty_driver.h>
-#include <linux/tty_flip.h>
-#include <linux/uaccess.h>
-
-#include <asm/da.h>
-
-/* Channel error codes */
-#define CONAOK	0
-#define CONERR	1
-#define CONBAD	2
-#define CONPRM	3
-#define CONADR	4
-#define CONCNT	5
-#define CONCBF	6
-#define CONCBE	7
-#define CONBSY	8
-
-/* Default channel for the console */
-#define CONSOLE_CHANNEL      1
-
-#define NUM_TTY_CHANNELS     6
-
-/* Auto allocate */
-#define DA_TTY_MAJOR        0
-
-/* A speedy poll rate helps the userland debug process connection response.
- * But, if you set it too high then no other userland processes get much
- * of a look in.
- */
-#define DA_TTY_POLL (HZ / 50)
-
-/*
- * A short put delay improves latency but has a high throughput overhead
- */
-#define DA_TTY_PUT_DELAY (HZ / 100)
-
-static atomic_t num_channels_need_poll = ATOMIC_INIT(0);
-
-static struct timer_list poll_timer;
-
-static struct tty_driver *channel_driver;
-
-static struct timer_list put_timer;
-static struct task_struct *dashtty_thread;
-
-/*
- * The console_poll parameter determines whether the console channel should be
- * polled for input.
- * By default the console channel isn't polled at all, in order to avoid the
- * overhead, but that means it isn't possible to have a login on /dev/console.
- */
-static bool console_poll;
-module_param(console_poll, bool, S_IRUGO);
-
-#define RX_BUF_SIZE 1024
-
-enum {
-	INCHR = 1,
-	OUTCHR,
-	RDBUF,
-	WRBUF,
-	RDSTAT
-};
-
-/**
- * struct dashtty_port - Wrapper struct for dashtty tty_port.
- * @port:		TTY port data
- * @rx_lock:		Lock for rx_buf.
- *			This protects between the poll timer and user context.
- *			It's also held during read SWITCH operations.
- * @rx_buf:		Read buffer
- * @xmit_lock:		Lock for xmit_*, and port.xmit_buf.
- *			This protects between user context and kernel thread.
- *			It's also held during write SWITCH operations.
- * @xmit_cnt:		Size of xmit buffer contents
- * @xmit_head:		Head of xmit buffer where data is written
- * @xmit_tail:		Tail of xmit buffer where data is read
- * @xmit_empty:		Completion for xmit buffer being empty
- */
-struct dashtty_port {
-	struct tty_port		 port;
-	spinlock_t		 rx_lock;
-	void			*rx_buf;
-	struct mutex		 xmit_lock;
-	unsigned int		 xmit_cnt;
-	unsigned int		 xmit_head;
-	unsigned int		 xmit_tail;
-	struct completion	 xmit_empty;
-};
-
-static struct dashtty_port dashtty_ports[NUM_TTY_CHANNELS];
-
-static atomic_t dashtty_xmit_cnt = ATOMIC_INIT(0);
-static wait_queue_head_t dashtty_waitqueue;
-
-/*
- * Low-level DA channel access routines
- */
-static int chancall(int in_bios_function, int in_channel,
-		    int in_arg2, void *in_arg3,
-		    void *in_arg4)
-{
-	register int   bios_function asm("D1Ar1") = in_bios_function;
-	register int   channel       asm("D0Ar2") = in_channel;
-	register int   arg2          asm("D1Ar3") = in_arg2;
-	register void *arg3          asm("D0Ar4") = in_arg3;
-	register void *arg4          asm("D1Ar5") = in_arg4;
-	register int   bios_call     asm("D0Ar6") = 3;
-	register int   result        asm("D0Re0");
-
-	asm volatile (
-		"MSETL	[A0StP++], %6,%4,%2\n\t"
-		"ADD	A0StP, A0StP, #8\n\t"
-		"SWITCH	#0x0C30208\n\t"
-		"GETD	%0, [A0StP+#-8]\n\t"
-		"SUB	A0StP, A0StP, #(4*6)+8\n\t"
-		: "=d" (result)   /* outs */
-		: "d" (bios_function),
-		  "d" (channel),
-		  "d" (arg2),
-		  "d" (arg3),
-		  "d" (arg4),
-		  "d" (bios_call) /* ins */
-		: "memory");
-
-	return result;
-}
-
-/*
- * Attempts to fetch count bytes from channel and returns actual count.
- */
-static int fetch_data(unsigned int channel)
-{
-	struct dashtty_port *dport = &dashtty_ports[channel];
-	int received = 0;
-
-	spin_lock_bh(&dport->rx_lock);
-	/* check the port isn't being shut down */
-	if (!dport->rx_buf)
-		goto unlock;
-	if (chancall(RDBUF, channel, RX_BUF_SIZE,
-		     (void *)dport->rx_buf, &received) == CONAOK) {
-		if (received) {
-			int space;
-			unsigned char *cbuf;
-
-			space = tty_prepare_flip_string(&dport->port, &cbuf,
-							received);
-
-			if (space <= 0)
-				goto unlock;
-
-			memcpy(cbuf, dport->rx_buf, space);
-			tty_flip_buffer_push(&dport->port);
-		}
-	}
-unlock:
-	spin_unlock_bh(&dport->rx_lock);
-
-	return received;
-}
-
-/**
- * find_channel_to_poll() - Returns number of the next channel to poll.
- * Returns:	The number of the next channel to poll, or -1 if none need
- *		polling.
- */
-static int find_channel_to_poll(void)
-{
-	static int last_polled_channel;
-	int last = last_polled_channel;
-	int chan;
-	struct dashtty_port *dport;
-
-	for (chan = last + 1; ; ++chan) {
-		if (chan >= NUM_TTY_CHANNELS)
-			chan = 0;
-
-		dport = &dashtty_ports[chan];
-		if (dport->rx_buf) {
-			last_polled_channel = chan;
-			return chan;
-		}
-
-		if (chan == last)
-			break;
-	}
-	return -1;
-}
-
-/**
- * put_channel_data() - Write out a block of channel data.
- * @chan:	DA channel number.
- *
- * Write a single block of data out to the debug adapter. If the circular buffer
- * is wrapped then only the first block is written.
- *
- * Returns:	1 if the remote buffer was too full to accept data.
- *		0 otherwise.
- */
-static int put_channel_data(unsigned int chan)
-{
-	struct dashtty_port *dport;
-	struct tty_struct *tty;
-	int number_written;
-	unsigned int count = 0;
-
-	dport = &dashtty_ports[chan];
-	mutex_lock(&dport->xmit_lock);
-	if (dport->xmit_cnt) {
-		count = min((unsigned int)(SERIAL_XMIT_SIZE - dport->xmit_tail),
-			    dport->xmit_cnt);
-		chancall(WRBUF, chan, count,
-			 dport->port.xmit_buf + dport->xmit_tail,
-			 &number_written);
-		dport->xmit_cnt -= number_written;
-		if (!dport->xmit_cnt) {
-			/* reset pointers to avoid wraps */
-			dport->xmit_head = 0;
-			dport->xmit_tail = 0;
-			complete(&dport->xmit_empty);
-		} else {
-			dport->xmit_tail += number_written;
-			if (dport->xmit_tail >= SERIAL_XMIT_SIZE)
-				dport->xmit_tail -= SERIAL_XMIT_SIZE;
-		}
-		atomic_sub(number_written, &dashtty_xmit_cnt);
-	}
-	mutex_unlock(&dport->xmit_lock);
-
-	/* if we've made more data available, wake up tty */
-	if (count && number_written) {
-		tty = tty_port_tty_get(&dport->port);
-		if (tty) {
-			tty_wakeup(tty);
-			tty_kref_put(tty);
-		}
-	}
-
-	/* did the write fail? */
-	return count && !number_written;
-}
-
-/**
- * put_data() - Kernel thread to write out blocks of channel data to DA.
- * @arg:	Unused.
- *
- * This kernel thread runs while @dashtty_xmit_cnt != 0, and loops over the
- * channels to write out any buffered data. If any of the channels stall due to
- * the remote buffer being full, a hold off happens to allow the debugger to
- * drain the buffer.
- */
-static int put_data(void *arg)
-{
-	unsigned int chan, stall;
-
-	__set_current_state(TASK_RUNNING);
-	while (!kthread_should_stop()) {
-		/*
-		 * For each channel see if there's anything to transmit in the
-		 * port's xmit_buf.
-		 */
-		stall = 0;
-		for (chan = 0; chan < NUM_TTY_CHANNELS; ++chan)
-			stall += put_channel_data(chan);
-
-		/*
-		 * If some of the buffers are full, hold off for a short while
-		 * to allow them to empty.
-		 */
-		if (stall)
-			msleep(25);
-
-		wait_event_interruptible(dashtty_waitqueue,
-					 atomic_read(&dashtty_xmit_cnt));
-	}
-
-	return 0;
-}
-
-/*
- *	This gets called every DA_TTY_POLL and polls the channels for data
- */
-static void dashtty_timer(struct timer_list *poll_timer)
-{
-	int channel;
-
-	/* If there are no ports open do nothing and don't poll again. */
-	if (!atomic_read(&num_channels_need_poll))
-		return;
-
-	channel = find_channel_to_poll();
-
-	/* Did we find a channel to poll? */
-	if (channel >= 0)
-		fetch_data(channel);
-
-	mod_timer(poll_timer, jiffies + DA_TTY_POLL);
-}
-
-static void add_poll_timer(struct timer_list *poll_timer)
-{
-	timer_setup(poll_timer, dashtty_timer, TIMER_PINNED);
-	poll_timer->expires = jiffies + DA_TTY_POLL;
-
-	/*
-	 * Always attach the timer to the boot CPU. The DA channels are per-CPU
-	 * so all polling should be from a single CPU.
-	 */
-	add_timer_on(poll_timer, 0);
-}
-
-static int dashtty_port_activate(struct tty_port *port, struct tty_struct *tty)
-{
-	struct dashtty_port *dport = container_of(port, struct dashtty_port,
-						  port);
-	void *rx_buf;
-
-	/* Allocate the buffer we use for writing data */
-	if (tty_port_alloc_xmit_buf(port) < 0)
-		goto err;
-
-	/* Allocate the buffer we use for reading data */
-	rx_buf = kzalloc(RX_BUF_SIZE, GFP_KERNEL);
-	if (!rx_buf)
-		goto err_free_xmit;
-
-	spin_lock_bh(&dport->rx_lock);
-	dport->rx_buf = rx_buf;
-	spin_unlock_bh(&dport->rx_lock);
-
-	/*
-	 * Don't add the poll timer if we're opening a console. This
-	 * avoids the overhead of polling the Dash but means it is not
-	 * possible to have a login on /dev/console.
-	 *
-	 */
-	if (console_poll || dport != &dashtty_ports[CONSOLE_CHANNEL])
-		if (atomic_inc_return(&num_channels_need_poll) == 1)
-			add_poll_timer(&poll_timer);
-
-	return 0;
-err_free_xmit:
-	tty_port_free_xmit_buf(port);
-err:
-	return -ENOMEM;
-}
-
-static void dashtty_port_shutdown(struct tty_port *port)
-{
-	struct dashtty_port *dport = container_of(port, struct dashtty_port,
-						  port);
-	void *rx_buf;
-	unsigned int count;
-
-	/* stop reading */
-	if (console_poll || dport != &dashtty_ports[CONSOLE_CHANNEL])
-		if (atomic_dec_and_test(&num_channels_need_poll))
-			del_timer_sync(&poll_timer);
-
-	mutex_lock(&dport->xmit_lock);
-	count = dport->xmit_cnt;
-	mutex_unlock(&dport->xmit_lock);
-	if (count) {
-		/*
-		 * There's still data to write out, so wake and wait for the
-		 * writer thread to drain the buffer.
-		 */
-		del_timer(&put_timer);
-		wake_up_interruptible(&dashtty_waitqueue);
-		wait_for_completion(&dport->xmit_empty);
-	}
-
-	/* Null the read buffer (timer could still be running!) */
-	spin_lock_bh(&dport->rx_lock);
-	rx_buf = dport->rx_buf;
-	dport->rx_buf = NULL;
-	spin_unlock_bh(&dport->rx_lock);
-	/* Free the read buffer */
-	kfree(rx_buf);
-
-	/* Free the write buffer */
-	tty_port_free_xmit_buf(port);
-}
-
-static const struct tty_port_operations dashtty_port_ops = {
-	.activate	= dashtty_port_activate,
-	.shutdown	= dashtty_port_shutdown,
-};
-
-static int dashtty_install(struct tty_driver *driver, struct tty_struct *tty)
-{
-	return tty_port_install(&dashtty_ports[tty->index].port, driver, tty);
-}
-
-static int dashtty_open(struct tty_struct *tty, struct file *filp)
-{
-	return tty_port_open(tty->port, tty, filp);
-}
-
-static void dashtty_close(struct tty_struct *tty, struct file *filp)
-{
-	return tty_port_close(tty->port, tty, filp);
-}
-
-static void dashtty_hangup(struct tty_struct *tty)
-{
-	int channel;
-	struct dashtty_port *dport;
-
-	channel = tty->index;
-	dport = &dashtty_ports[channel];
-
-	/* drop any data in the xmit buffer */
-	mutex_lock(&dport->xmit_lock);
-	if (dport->xmit_cnt) {
-		atomic_sub(dport->xmit_cnt, &dashtty_xmit_cnt);
-		dport->xmit_cnt = 0;
-		dport->xmit_head = 0;
-		dport->xmit_tail = 0;
-		complete(&dport->xmit_empty);
-	}
-	mutex_unlock(&dport->xmit_lock);
-
-	tty_port_hangup(tty->port);
-}
-
-/**
- * dashtty_put_timer() - Delayed wake up of kernel thread.
- * @ignored:	unused
- *
- * This timer function wakes up the kernel thread if any data exists in the
- * buffers. It is used to delay the expensive writeout until the writer has
- * stopped writing.
- */
-static void dashtty_put_timer(struct timer_list *unused)
-{
-	if (atomic_read(&dashtty_xmit_cnt))
-		wake_up_interruptible(&dashtty_waitqueue);
-}
-
-static int dashtty_write(struct tty_struct *tty, const unsigned char *buf,
-			 int total)
-{
-	int channel, count, block;
-	struct dashtty_port *dport;
-
-	/* Determine the channel */
-	channel = tty->index;
-	dport = &dashtty_ports[channel];
-
-	/*
-	 * Write to output buffer.
-	 *
-	 * The reason that we asynchronously write the buffer is because if we
-	 * were to write the buffer synchronously then because DA channels are
-	 * per-CPU the buffer would be written to the channel of whatever CPU
-	 * we're running on.
-	 *
-	 * What we actually want to happen is have all input and output done on
-	 * one CPU.
-	 */
-	mutex_lock(&dport->xmit_lock);
-	/* work out how many bytes we can write to the xmit buffer */
-	total = min(total, (int)(SERIAL_XMIT_SIZE - dport->xmit_cnt));
-	atomic_add(total, &dashtty_xmit_cnt);
-	dport->xmit_cnt += total;
-	/* write the actual bytes (may need splitting if it wraps) */
-	for (count = total; count; count -= block) {
-		block = min(count, (int)(SERIAL_XMIT_SIZE - dport->xmit_head));
-		memcpy(dport->port.xmit_buf + dport->xmit_head, buf, block);
-		dport->xmit_head += block;
-		if (dport->xmit_head >= SERIAL_XMIT_SIZE)
-			dport->xmit_head -= SERIAL_XMIT_SIZE;
-		buf += block;
-	}
-	count = dport->xmit_cnt;
-	/* xmit buffer no longer empty? */
-	if (count)
-		reinit_completion(&dport->xmit_empty);
-	mutex_unlock(&dport->xmit_lock);
-
-	if (total) {
-		/*
-		 * If the buffer is full, wake up the kthread, otherwise allow
-		 * some more time for the buffer to fill up a bit before waking
-		 * it.
-		 */
-		if (count == SERIAL_XMIT_SIZE) {
-			del_timer(&put_timer);
-			wake_up_interruptible(&dashtty_waitqueue);
-		} else {
-			mod_timer(&put_timer, jiffies + DA_TTY_PUT_DELAY);
-		}
-	}
-	return total;
-}
-
-static int dashtty_write_room(struct tty_struct *tty)
-{
-	struct dashtty_port *dport;
-	int channel;
-	int room;
-
-	channel = tty->index;
-	dport = &dashtty_ports[channel];
-
-	/* report the space in the xmit buffer */
-	mutex_lock(&dport->xmit_lock);
-	room = SERIAL_XMIT_SIZE - dport->xmit_cnt;
-	mutex_unlock(&dport->xmit_lock);
-
-	return room;
-}
-
-static int dashtty_chars_in_buffer(struct tty_struct *tty)
-{
-	struct dashtty_port *dport;
-	int channel;
-	int chars;
-
-	channel = tty->index;
-	dport = &dashtty_ports[channel];
-
-	/* report the number of bytes in the xmit buffer */
-	mutex_lock(&dport->xmit_lock);
-	chars = dport->xmit_cnt;
-	mutex_unlock(&dport->xmit_lock);
-
-	return chars;
-}
-
-static const struct tty_operations dashtty_ops = {
-	.install		= dashtty_install,
-	.open			= dashtty_open,
-	.close			= dashtty_close,
-	.hangup			= dashtty_hangup,
-	.write			= dashtty_write,
-	.write_room		= dashtty_write_room,
-	.chars_in_buffer	= dashtty_chars_in_buffer,
-};
-
-static int __init dashtty_init(void)
-{
-	int ret;
-	int nport;
-	struct dashtty_port *dport;
-
-	if (!metag_da_enabled())
-		return -ENODEV;
-
-	channel_driver = tty_alloc_driver(NUM_TTY_CHANNELS,
-					  TTY_DRIVER_REAL_RAW);
-	if (IS_ERR(channel_driver))
-		return PTR_ERR(channel_driver);
-
-	channel_driver->driver_name = "metag_da";
-	channel_driver->name = "ttyDA";
-	channel_driver->major = DA_TTY_MAJOR;
-	channel_driver->minor_start = 0;
-	channel_driver->type = TTY_DRIVER_TYPE_SERIAL;
-	channel_driver->subtype = SERIAL_TYPE_NORMAL;
-	channel_driver->init_termios = tty_std_termios;
-	channel_driver->init_termios.c_cflag |= CLOCAL;
-
-	tty_set_operations(channel_driver, &dashtty_ops);
-	for (nport = 0; nport < NUM_TTY_CHANNELS; nport++) {
-		dport = &dashtty_ports[nport];
-		tty_port_init(&dport->port);
-		dport->port.ops = &dashtty_port_ops;
-		spin_lock_init(&dport->rx_lock);
-		mutex_init(&dport->xmit_lock);
-		/* the xmit buffer starts empty, i.e. completely written */
-		init_completion(&dport->xmit_empty);
-		complete(&dport->xmit_empty);
-	}
-
-	timer_setup(&put_timer, dashtty_put_timer, 0);
-
-	init_waitqueue_head(&dashtty_waitqueue);
-	dashtty_thread = kthread_create(put_data, NULL, "ttyDA");
-	if (IS_ERR(dashtty_thread)) {
-		pr_err("Couldn't create dashtty thread\n");
-		ret = PTR_ERR(dashtty_thread);
-		goto err_destroy_ports;
-	}
-	/*
-	 * Bind the writer thread to the boot CPU so it can't migrate.
-	 * DA channels are per-CPU and we want all channel I/O to be on a single
-	 * predictable CPU.
-	 */
-	kthread_bind(dashtty_thread, 0);
-	wake_up_process(dashtty_thread);
-
-	ret = tty_register_driver(channel_driver);
-
-	if (ret < 0) {
-		pr_err("Couldn't install dashtty driver: err %d\n",
-		       ret);
-		goto err_stop_kthread;
-	}
-
-	return 0;
-
-err_stop_kthread:
-	kthread_stop(dashtty_thread);
-err_destroy_ports:
-	for (nport = 0; nport < NUM_TTY_CHANNELS; nport++) {
-		dport = &dashtty_ports[nport];
-		tty_port_destroy(&dport->port);
-	}
-	put_tty_driver(channel_driver);
-	return ret;
-}
-device_initcall(dashtty_init);
-
-#ifdef CONFIG_DA_CONSOLE
-
-static void dash_console_write(struct console *co, const char *s,
-			       unsigned int count)
-{
-	int actually_written;
-
-	chancall(WRBUF, CONSOLE_CHANNEL, count, (void *)s, &actually_written);
-}
-
-static struct tty_driver *dash_console_device(struct console *c, int *index)
-{
-	*index = c->index;
-	return channel_driver;
-}
-
-struct console dash_console = {
-	.name = "ttyDA",
-	.write = dash_console_write,
-	.device = dash_console_device,
-	.flags = CON_PRINTBUFFER,
-	.index = 1,
-};
-
-#endif
diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig
index 37460cd6cabb..0e19679348d1 100644
--- a/drivers/watchdog/Kconfig
+++ b/drivers/watchdog/Kconfig
@@ -1605,7 +1605,7 @@ config BCM7038_WDT
 config IMGPDC_WDT
 	tristate "Imagination Technologies PDC Watchdog Timer"
 	depends on HAS_IOMEM
-	depends on METAG || MIPS || COMPILE_TEST
+	depends on MIPS || COMPILE_TEST
 	select WATCHDOG_CORE
 	help
 	  Driver for Imagination Technologies PowerDown Controller