Merge tag 'asm-generic-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic

Pull asm-generic updates from Arnd Bergmann:
 "The asm-generic tree contains three separate changes for linux-5.19:

   - The h8300 architecture is retired after it has been effectively
     unmaintained for a number of years. This is the last architecture
     we supported that has no MMU implementation, but there are still a
     few architectures (arm, m68k, riscv, sh and xtensa) that support
     CPUs with and without an MMU.

   - A series to add a generic ticket spinlock that can be shared by
     most architectures with a working cmpxchg or ll/sc type atomic,
     including the conversion of riscv, csky and openrisc. This series
     is also a prerequisite for the loongarch64 architecture port that
     will come as a separate pull request.

   - A cleanup of some exported uapi header files to ensure they can be
     included from user space without relying on other kernel headers"

* tag 'asm-generic-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic:
  h8300: remove stale bindings and symlink
  sparc: add asm/stat.h to UAPI compile-test coverage
  powerpc: add asm/stat.h to UAPI compile-test coverage
  mips: add asm/stat.h to UAPI compile-test coverage
  riscv: add linux/bpf_perf_event.h to UAPI compile-test coverage
  kbuild: prevent exported headers from including <stdlib.h>, <stdbool.h>
  agpgart.h: do not include <stdlib.h> from exported header
  csky: Move to generic ticket-spinlock
  RISC-V: Move to queued RW locks
  RISC-V: Move to generic spinlocks
  openrisc: Move to ticket-spinlock
  asm-generic: qrwlock: Document the spinlock fairness requirements
  asm-generic: qspinlock: Indicate the use of mixed-size atomics
  asm-generic: ticket-lock: New generic ticket-based spinlock
  remove the h8300 architecture

16 files changed, 4 insertions, 1015 deletions

diff --git a/drivers/clk/Makefile b/drivers/clk/Makefile
index 2bd5ffd595bf..21cb96b022e6 100644
--- a/drivers/clk/Makefile
+++ b/drivers/clk/Makefile
@@ -85,7 +85,6 @@ obj-$(CONFIG_CLK_BAIKAL_T1)		+= baikal-t1/
 obj-y					+= bcm/
 obj-$(CONFIG_ARCH_BERLIN)		+= berlin/
 obj-$(CONFIG_ARCH_DAVINCI)		+= davinci/
-obj-$(CONFIG_H8300)			+= h8300/
 obj-$(CONFIG_ARCH_HISI)			+= hisilicon/
 obj-y					+= imgtec/
 obj-y					+= imx/
diff --git a/drivers/clk/h8300/Makefile b/drivers/clk/h8300/Makefile
deleted file mode 100644
index 8078a0b79000..000000000000
--- a/drivers/clk/h8300/Makefile
+++ /dev/null
@@ -1,3 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0-only
-obj-y += clk-div.o
-obj-$(CONFIG_H8S2678) += clk-h8s2678.o
diff --git a/drivers/clk/h8300/clk-div.c b/drivers/clk/h8300/clk-div.c
deleted file mode 100644
index 376be03bb546..000000000000
--- a/drivers/clk/h8300/clk-div.c
+++ /dev/null
@@ -1,57 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * H8/300 divide clock driver
- *
- * Copyright 2015 Yoshinori Sato <ysato@users.sourceforge.jp>
- */
-
-#include <linux/clk-provider.h>
-#include <linux/err.h>
-#include <linux/io.h>
-#include <linux/of.h>
-#include <linux/of_address.h>
-
-static DEFINE_SPINLOCK(clklock);
-
-static void __init h8300_div_clk_setup(struct device_node *node)
-{
-	unsigned int num_parents;
-	struct clk_hw *hw;
-	const char *clk_name = node->name;
-	const char *parent_name;
-	void __iomem *divcr = NULL;
-	int width;
-	int offset;
-
-	num_parents = of_clk_get_parent_count(node);
-	if (!num_parents) {
-		pr_err("%s: no parent found\n", clk_name);
-		return;
-	}
-
-	divcr = of_iomap(node, 0);
-	if (divcr == NULL) {
-		pr_err("%s: failed to map divide register\n", clk_name);
-		goto error;
-	}
-	offset = (unsigned long)divcr & 3;
-	offset = (3 - offset) * 8;
-	divcr = (void __iomem *)((unsigned long)divcr & ~3);
-
-	parent_name = of_clk_get_parent_name(node, 0);
-	of_property_read_u32(node, "renesas,width", &width);
-	hw = clk_hw_register_divider(NULL, clk_name, parent_name,
-				   CLK_SET_RATE_GATE, divcr, offset, width,
-				   CLK_DIVIDER_POWER_OF_TWO, &clklock);
-	if (!IS_ERR(hw)) {
-		of_clk_add_hw_provider(node, of_clk_hw_simple_get, hw);
-		return;
-	}
-	pr_err("%s: failed to register %s div clock (%ld)\n",
-	       __func__, clk_name, PTR_ERR(hw));
-error:
-	if (divcr)
-		iounmap(divcr);
-}
-
-CLK_OF_DECLARE(h8300_div_clk, "renesas,h8300-div-clock", h8300_div_clk_setup);
diff --git a/drivers/clk/h8300/clk-h8s2678.c b/drivers/clk/h8300/clk-h8s2678.c
deleted file mode 100644
index 67c495b67c18..000000000000
--- a/drivers/clk/h8300/clk-h8s2678.c
+++ /dev/null
@@ -1,145 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * H8S2678 clock driver
- *
- * Copyright 2015 Yoshinori Sato <ysato@users.sourceforge.jp>
- */
-
-#include <linux/clk-provider.h>
-#include <linux/device.h>
-#include <linux/io.h>
-#include <linux/err.h>
-#include <linux/of_address.h>
-#include <linux/slab.h>
-
-static DEFINE_SPINLOCK(clklock);
-
-#define MAX_FREQ 33333333
-#define MIN_FREQ  8000000
-
-struct pll_clock {
-	struct clk_hw hw;
-	void __iomem *sckcr;
-	void __iomem *pllcr;
-};
-
-#define to_pll_clock(_hw) container_of(_hw, struct pll_clock, hw)
-
-static unsigned long pll_recalc_rate(struct clk_hw *hw,
-		unsigned long parent_rate)
-{
-	struct pll_clock *pll_clock = to_pll_clock(hw);
-	int mul = 1 << (readb(pll_clock->pllcr) & 3);
-
-	return parent_rate * mul;
-}
-
-static long pll_round_rate(struct clk_hw *hw, unsigned long rate,
-				unsigned long *prate)
-{
-	int i, m = -1;
-	long offset[3];
-
-	if (rate > MAX_FREQ)
-		rate = MAX_FREQ;
-	if (rate < MIN_FREQ)
-		rate = MIN_FREQ;
-
-	for (i = 0; i < 3; i++)
-		offset[i] = abs(rate - (*prate * (1 << i)));
-	for (i = 0; i < 3; i++)
-		if (m < 0)
-			m = i;
-		else
-			m = (offset[i] < offset[m])?i:m;
-
-	return *prate * (1 << m);
-}
-
-static int pll_set_rate(struct clk_hw *hw, unsigned long rate,
-			unsigned long parent_rate)
-{
-	int pll;
-	unsigned char val;
-	unsigned long flags;
-	struct pll_clock *pll_clock = to_pll_clock(hw);
-
-	pll = ((rate / parent_rate) / 2) & 0x03;
-	spin_lock_irqsave(&clklock, flags);
-	val = readb(pll_clock->sckcr);
-	val |= 0x08;
-	writeb(val, pll_clock->sckcr);
-	val = readb(pll_clock->pllcr);
-	val &= ~0x03;
-	val |= pll;
-	writeb(val, pll_clock->pllcr);
-	spin_unlock_irqrestore(&clklock, flags);
-	return 0;
-}
-
-static const struct clk_ops pll_ops = {
-	.recalc_rate = pll_recalc_rate,
-	.round_rate = pll_round_rate,
-	.set_rate = pll_set_rate,
-};
-
-static void __init h8s2678_pll_clk_setup(struct device_node *node)
-{
-	unsigned int num_parents;
-	const char *clk_name = node->name;
-	const char *parent_name;
-	struct pll_clock *pll_clock;
-	struct clk_init_data init;
-	int ret;
-
-	num_parents = of_clk_get_parent_count(node);
-	if (!num_parents) {
-		pr_err("%s: no parent found\n", clk_name);
-		return;
-	}
-
-
-	pll_clock = kzalloc(sizeof(*pll_clock), GFP_KERNEL);
-	if (!pll_clock)
-		return;
-
-	pll_clock->sckcr = of_iomap(node, 0);
-	if (pll_clock->sckcr == NULL) {
-		pr_err("%s: failed to map divide register\n", clk_name);
-		goto free_clock;
-	}
-
-	pll_clock->pllcr = of_iomap(node, 1);
-	if (pll_clock->pllcr == NULL) {
-		pr_err("%s: failed to map multiply register\n", clk_name);
-		goto unmap_sckcr;
-	}
-
-	parent_name = of_clk_get_parent_name(node, 0);
-	init.name = clk_name;
-	init.ops = &pll_ops;
-	init.flags = 0;
-	init.parent_names = &parent_name;
-	init.num_parents = 1;
-	pll_clock->hw.init = &init;
-
-	ret = clk_hw_register(NULL, &pll_clock->hw);
-	if (ret) {
-		pr_err("%s: failed to register %s div clock (%d)\n",
-		       __func__, clk_name, ret);
-		goto unmap_pllcr;
-	}
-
-	of_clk_add_hw_provider(node, of_clk_hw_simple_get, &pll_clock->hw);
-	return;
-
-unmap_pllcr:
-	iounmap(pll_clock->pllcr);
-unmap_sckcr:
-	iounmap(pll_clock->sckcr);
-free_clock:
-	kfree(pll_clock);
-}
-
-CLK_OF_DECLARE(h8s2678_div_clk, "renesas,h8s2678-pll-clock",
-	       h8s2678_pll_clk_setup);
diff --git a/drivers/clocksource/Kconfig b/drivers/clocksource/Kconfig
index 06866bfa1826..fe3f05dfafd9 100644
--- a/drivers/clocksource/Kconfig
+++ b/drivers/clocksource/Kconfig
@@ -567,26 +567,6 @@ config CLKSRC_PXA
 	  This enables OST0 support available on PXA and SA-11x0
 	  platforms.
 
-config H8300_TMR8
-	bool "Clockevent timer for the H8300 platform" if COMPILE_TEST
-	depends on HAS_IOMEM
-	help
-	  This enables the 8 bits timer for the H8300 platform.
-
-config H8300_TMR16
-	bool "Clockevent timer for the H83069 platform" if COMPILE_TEST
-	depends on HAS_IOMEM
-	help
-	  This enables the 16 bits timer for the H8300 platform with the
-	  H83069 CPU.
-
-config H8300_TPU
-	bool "Clocksource for the H8300 platform" if COMPILE_TEST
-	depends on HAS_IOMEM
-	help
-	  This enables the clocksource for the H8300 platform with the
-	  H8S2678 CPU.
-
 config CLKSRC_IMX_GPT
 	bool "Clocksource using i.MX GPT" if COMPILE_TEST
 	depends on (ARM || ARM64) && HAVE_CLK
diff --git a/drivers/clocksource/Makefile b/drivers/clocksource/Makefile
index b839beb6ea53..833cfb7a96c1 100644
--- a/drivers/clocksource/Makefile
+++ b/drivers/clocksource/Makefile
@@ -73,9 +73,6 @@ obj-$(CONFIG_CLKSRC_IMX_GPT)		+= timer-imx-gpt.o
 obj-$(CONFIG_CLKSRC_IMX_TPM)		+= timer-imx-tpm.o
 obj-$(CONFIG_TIMER_IMX_SYS_CTR)		+= timer-imx-sysctr.o
 obj-$(CONFIG_ASM9260_TIMER)		+= asm9260_timer.o
-obj-$(CONFIG_H8300_TMR8)		+= h8300_timer8.o
-obj-$(CONFIG_H8300_TMR16)		+= h8300_timer16.o
-obj-$(CONFIG_H8300_TPU)			+= h8300_tpu.o
 obj-$(CONFIG_INGENIC_OST)		+= ingenic-ost.o
 obj-$(CONFIG_INGENIC_SYSOST)	+= ingenic-sysost.o
 obj-$(CONFIG_INGENIC_TIMER)		+= ingenic-timer.o
diff --git a/drivers/clocksource/h8300_timer16.c b/drivers/clocksource/h8300_timer16.c
deleted file mode 100644
index 86ca91451b2e..000000000000
--- a/drivers/clocksource/h8300_timer16.c
+++ /dev/null
@@ -1,192 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- *  H8/300 16bit Timer driver
- *
- *  Copyright 2015 Yoshinori Sato <ysato@users.sourcefoge.jp>
- */
-
-#include <linux/interrupt.h>
-#include <linux/init.h>
-#include <linux/clocksource.h>
-#include <linux/clk.h>
-#include <linux/io.h>
-#include <linux/of.h>
-#include <linux/of_address.h>
-#include <linux/of_irq.h>
-
-#define TSTR	0
-#define TISRC	6
-
-#define TCR	0
-#define TCNT	2
-
-#define bset(b, a) iowrite8(ioread8(a) | (1 << (b)), (a))
-#define bclr(b, a) iowrite8(ioread8(a) & ~(1 << (b)), (a))
-
-struct timer16_priv {
-	struct clocksource cs;
-	unsigned long total_cycles;
-	void __iomem *mapbase;
-	void __iomem *mapcommon;
-	unsigned short cs_enabled;
-	unsigned char enb;
-	unsigned char ovf;
-	unsigned char ovie;
-};
-
-static unsigned long timer16_get_counter(struct timer16_priv *p)
-{
-	unsigned short v1, v2, v3;
-	unsigned char  o1, o2;
-
-	o1 = ioread8(p->mapcommon + TISRC) & p->ovf;
-
-	/* Make sure the timer value is stable. Stolen from acpi_pm.c */
-	do {
-		o2 = o1;
-		v1 = ioread16be(p->mapbase + TCNT);
-		v2 = ioread16be(p->mapbase + TCNT);
-		v3 = ioread16be(p->mapbase + TCNT);
-		o1 = ioread8(p->mapcommon + TISRC) & p->ovf;
-	} while (unlikely((o1 != o2) || (v1 > v2 && v1 < v3)
-			  || (v2 > v3 && v2 < v1) || (v3 > v1 && v3 < v2)));
-
-	if (likely(!o1))
-		return v2;
-	else
-		return v2 + 0x10000;
-}
-
-
-static irqreturn_t timer16_interrupt(int irq, void *dev_id)
-{
-	struct timer16_priv *p = (struct timer16_priv *)dev_id;
-
-	bclr(p->ovf, p->mapcommon + TISRC);
-	p->total_cycles += 0x10000;
-
-	return IRQ_HANDLED;
-}
-
-static inline struct timer16_priv *cs_to_priv(struct clocksource *cs)
-{
-	return container_of(cs, struct timer16_priv, cs);
-}
-
-static u64 timer16_clocksource_read(struct clocksource *cs)
-{
-	struct timer16_priv *p = cs_to_priv(cs);
-	unsigned long raw, value;
-
-	value = p->total_cycles;
-	raw = timer16_get_counter(p);
-
-	return value + raw;
-}
-
-static int timer16_enable(struct clocksource *cs)
-{
-	struct timer16_priv *p = cs_to_priv(cs);
-
-	WARN_ON(p->cs_enabled);
-
-	p->total_cycles = 0;
-	iowrite16be(0x0000, p->mapbase + TCNT);
-	iowrite8(0x83, p->mapbase + TCR);
-	bset(p->ovie, p->mapcommon + TISRC);
-	bset(p->enb, p->mapcommon + TSTR);
-
-	p->cs_enabled = true;
-	return 0;
-}
-
-static void timer16_disable(struct clocksource *cs)
-{
-	struct timer16_priv *p = cs_to_priv(cs);
-
-	WARN_ON(!p->cs_enabled);
-
-	bclr(p->ovie, p->mapcommon + TISRC);
-	bclr(p->enb, p->mapcommon + TSTR);
-
-	p->cs_enabled = false;
-}
-
-static struct timer16_priv timer16_priv = {
-	.cs = {
-		.name = "h8300_16timer",
-		.rating = 200,
-		.read = timer16_clocksource_read,
-		.enable = timer16_enable,
-		.disable = timer16_disable,
-		.mask = CLOCKSOURCE_MASK(sizeof(unsigned long) * 8),
-		.flags = CLOCK_SOURCE_IS_CONTINUOUS,
-	},
-};
-
-#define REG_CH   0
-#define REG_COMM 1
-
-static int __init h8300_16timer_init(struct device_node *node)
-{
-	void __iomem *base[2];
-	int ret, irq;
-	unsigned int ch;
-	struct clk *clk;
-
-	clk = of_clk_get(node, 0);
-	if (IS_ERR(clk)) {
-		pr_err("failed to get clock for clocksource\n");
-		return PTR_ERR(clk);
-	}
-
-	ret = -ENXIO;
-	base[REG_CH] = of_iomap(node, 0);
-	if (!base[REG_CH]) {
-		pr_err("failed to map registers for clocksource\n");
-		goto free_clk;
-	}
-
-	base[REG_COMM] = of_iomap(node, 1);
-	if (!base[REG_COMM]) {
-		pr_err("failed to map registers for clocksource\n");
-		goto unmap_ch;
-	}
-
-	ret = -EINVAL;
-	irq = irq_of_parse_and_map(node, 0);
-	if (!irq) {
-		pr_err("failed to get irq for clockevent\n");
-		goto unmap_comm;
-	}
-
-	of_property_read_u32(node, "renesas,channel", &ch);
-
-	timer16_priv.mapbase = base[REG_CH];
-	timer16_priv.mapcommon = base[REG_COMM];
-	timer16_priv.enb = ch;
-	timer16_priv.ovf = ch;
-	timer16_priv.ovie = 4 + ch;
-
-	ret = request_irq(irq, timer16_interrupt,
-			  IRQF_TIMER, timer16_priv.cs.name, &timer16_priv);
-	if (ret < 0) {
-		pr_err("failed to request irq %d of clocksource\n", irq);
-		goto unmap_comm;
-	}
-
-	clocksource_register_hz(&timer16_priv.cs,
-				clk_get_rate(clk) / 8);
-	return 0;
-
-unmap_comm:
-	iounmap(base[REG_COMM]);
-unmap_ch:
-	iounmap(base[REG_CH]);
-free_clk:
-	clk_put(clk);
-	return ret;
-}
-
-TIMER_OF_DECLARE(h8300_16bit, "renesas,16bit-timer",
-			   h8300_16timer_init);
diff --git a/drivers/clocksource/h8300_timer8.c b/drivers/clocksource/h8300_timer8.c
deleted file mode 100644
index 47114c2a7cb5..000000000000
--- a/drivers/clocksource/h8300_timer8.c
+++ /dev/null
@@ -1,211 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- *  linux/arch/h8300/kernel/cpu/timer/timer8.c
- *
- *  Yoshinori Sato <ysato@users.sourcefoge.jp>
- *
- *  8bit Timer driver
- *
- */
-
-#include <linux/errno.h>
-#include <linux/kernel.h>
-#include <linux/interrupt.h>
-#include <linux/init.h>
-#include <linux/clockchips.h>
-#include <linux/clk.h>
-#include <linux/io.h>
-#include <linux/of.h>
-#include <linux/of_address.h>
-#include <linux/of_irq.h>
-
-#define _8TCR	0
-#define _8TCSR	2
-#define TCORA	4
-#define TCORB	6
-#define _8TCNT	8
-
-#define CMIEA	6
-#define CMFA	6
-
-#define FLAG_STARTED (1 << 3)
-
-#define SCALE 64
-
-#define bset(b, a) iowrite8(ioread8(a) | (1 << (b)), (a))
-#define bclr(b, a) iowrite8(ioread8(a) & ~(1 << (b)), (a))
-
-struct timer8_priv {
-	struct clock_event_device ced;
-	void __iomem *mapbase;
-	unsigned long flags;
-	unsigned int rate;
-};
-
-static irqreturn_t timer8_interrupt(int irq, void *dev_id)
-{
-	struct timer8_priv *p = dev_id;
-
-	if (clockevent_state_oneshot(&p->ced))
-		iowrite16be(0x0000, p->mapbase + _8TCR);
-
-	p->ced.event_handler(&p->ced);
-
-	bclr(CMFA, p->mapbase + _8TCSR);
-
-	return IRQ_HANDLED;
-}
-
-static void timer8_set_next(struct timer8_priv *p, unsigned long delta)
-{
-	if (delta >= 0x10000)
-		pr_warn("delta out of range\n");
-	bclr(CMIEA, p->mapbase + _8TCR);
-	iowrite16be(delta, p->mapbase + TCORA);
-	iowrite16be(0x0000, p->mapbase + _8TCNT);
-	bclr(CMFA, p->mapbase + _8TCSR);
-	bset(CMIEA, p->mapbase + _8TCR);
-}
-
-static int timer8_enable(struct timer8_priv *p)
-{
-	iowrite16be(0xffff, p->mapbase + TCORA);
-	iowrite16be(0x0000, p->mapbase + _8TCNT);
-	iowrite16be(0x0c02, p->mapbase + _8TCR);
-
-	return 0;
-}
-
-static int timer8_start(struct timer8_priv *p)
-{
-	int ret;
-
-	if ((p->flags & FLAG_STARTED))
-		return 0;
-
-	ret = timer8_enable(p);
-	if (!ret)
-		p->flags |= FLAG_STARTED;
-
-	return ret;
-}
-
-static void timer8_stop(struct timer8_priv *p)
-{
-	iowrite16be(0x0000, p->mapbase + _8TCR);
-}
-
-static inline struct timer8_priv *ced_to_priv(struct clock_event_device *ced)
-{
-	return container_of(ced, struct timer8_priv, ced);
-}
-
-static void timer8_clock_event_start(struct timer8_priv *p, unsigned long delta)
-{
-	timer8_start(p);
-	timer8_set_next(p, delta);
-}
-
-static int timer8_clock_event_shutdown(struct clock_event_device *ced)
-{
-	timer8_stop(ced_to_priv(ced));
-	return 0;
-}
-
-static int timer8_clock_event_periodic(struct clock_event_device *ced)
-{
-	struct timer8_priv *p = ced_to_priv(ced);
-
-	pr_info("%s: used for periodic clock events\n", ced->name);
-	timer8_stop(p);
-	timer8_clock_event_start(p, (p->rate + HZ/2) / HZ);
-
-	return 0;
-}
-
-static int timer8_clock_event_oneshot(struct clock_event_device *ced)
-{
-	struct timer8_priv *p = ced_to_priv(ced);
-
-	pr_info("%s: used for oneshot clock events\n", ced->name);
-	timer8_stop(p);
-	timer8_clock_event_start(p, 0x10000);
-
-	return 0;
-}
-
-static int timer8_clock_event_next(unsigned long delta,
-				   struct clock_event_device *ced)
-{
-	struct timer8_priv *p = ced_to_priv(ced);
-
-	BUG_ON(!clockevent_state_oneshot(ced));
-	timer8_set_next(p, delta - 1);
-
-	return 0;
-}
-
-static struct timer8_priv timer8_priv = {
-	.ced = {
-		.name = "h8300_8timer",
-		.features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT,
-		.rating = 200,
-		.set_next_event = timer8_clock_event_next,
-		.set_state_shutdown = timer8_clock_event_shutdown,
-		.set_state_periodic = timer8_clock_event_periodic,
-		.set_state_oneshot = timer8_clock_event_oneshot,
-	},
-};
-
-static int __init h8300_8timer_init(struct device_node *node)
-{
-	void __iomem *base;
-	int irq, ret;
-	struct clk *clk;
-
-	clk = of_clk_get(node, 0);
-	if (IS_ERR(clk)) {
-		pr_err("failed to get clock for clockevent\n");
-		return PTR_ERR(clk);
-	}
-
-	ret = -ENXIO;
-	base = of_iomap(node, 0);
-	if (!base) {
-		pr_err("failed to map registers for clockevent\n");
-		goto free_clk;
-	}
-
-	ret = -EINVAL;
-	irq = irq_of_parse_and_map(node, 0);
-	if (!irq) {
-		pr_err("failed to get irq for clockevent\n");
-		goto unmap_reg;
-	}
-
-	timer8_priv.mapbase = base;
-
-	timer8_priv.rate = clk_get_rate(clk) / SCALE;
-	if (!timer8_priv.rate) {
-		pr_err("Failed to get rate for the clocksource\n");
-		goto unmap_reg;
-	}
-
-	if (request_irq(irq, timer8_interrupt, IRQF_TIMER,
-			timer8_priv.ced.name, &timer8_priv) < 0) {
-		pr_err("failed to request irq %d for clockevent\n", irq);
-		goto unmap_reg;
-	}
-
-	clockevents_config_and_register(&timer8_priv.ced,
-					timer8_priv.rate, 1, 0x0000ffff);
-
-	return 0;
-unmap_reg:
-	iounmap(base);
-free_clk:
-	clk_put(clk);
-	return ret;
-}
-
-TIMER_OF_DECLARE(h8300_8bit, "renesas,8bit-timer", h8300_8timer_init);
diff --git a/drivers/clocksource/h8300_tpu.c b/drivers/clocksource/h8300_tpu.c
deleted file mode 100644
index 17d4ab0f6ad1..000000000000
--- a/drivers/clocksource/h8300_tpu.c
+++ /dev/null
@@ -1,158 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- *  H8S TPU Driver
- *
- *  Copyright 2015 Yoshinori Sato <ysato@users.sourcefoge.jp>
- *
- */
-
-#include <linux/errno.h>
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/clocksource.h>
-#include <linux/clk.h>
-#include <linux/io.h>
-#include <linux/of.h>
-#include <linux/of_address.h>
-#include <linux/of_irq.h>
-
-#define TCR	0x0
-#define TSR	0x5
-#define TCNT	0x6
-
-#define TCFV	0x10
-
-struct tpu_priv {
-	struct clocksource cs;
-	void __iomem *mapbase1;
-	void __iomem *mapbase2;
-	raw_spinlock_t lock;
-	unsigned int cs_enabled;
-};
-
-static inline unsigned long read_tcnt32(struct tpu_priv *p)
-{
-	unsigned long tcnt;
-
-	tcnt = ioread16be(p->mapbase1 + TCNT) << 16;
-	tcnt |= ioread16be(p->mapbase2 + TCNT);
-	return tcnt;
-}
-
-static int tpu_get_counter(struct tpu_priv *p, unsigned long long *val)
-{
-	unsigned long v1, v2, v3;
-	int o1, o2;
-
-	o1 = ioread8(p->mapbase1 + TSR) & TCFV;
-
-	/* Make sure the timer value is stable. Stolen from acpi_pm.c */
-	do {
-		o2 = o1;
-		v1 = read_tcnt32(p);
-		v2 = read_tcnt32(p);
-		v3 = read_tcnt32(p);
-		o1 = ioread8(p->mapbase1 + TSR) & TCFV;
-	} while (unlikely((o1 != o2) || (v1 > v2 && v1 < v3)
-			  || (v2 > v3 && v2 < v1) || (v3 > v1 && v3 < v2)));
-
-	*val = v2;
-	return o1;
-}
-
-static inline struct tpu_priv *cs_to_priv(struct clocksource *cs)
-{
-	return container_of(cs, struct tpu_priv, cs);
-}
-
-static u64 tpu_clocksource_read(struct clocksource *cs)
-{
-	struct tpu_priv *p = cs_to_priv(cs);
-	unsigned long flags;
-	unsigned long long value;
-
-	raw_spin_lock_irqsave(&p->lock, flags);
-	if (tpu_get_counter(p, &value))
-		value += 0x100000000;
-	raw_spin_unlock_irqrestore(&p->lock, flags);
-
-	return value;
-}
-
-static int tpu_clocksource_enable(struct clocksource *cs)
-{
-	struct tpu_priv *p = cs_to_priv(cs);
-
-	WARN_ON(p->cs_enabled);
-
-	iowrite16be(0, p->mapbase1 + TCNT);
-	iowrite16be(0, p->mapbase2 + TCNT);
-	iowrite8(0x0f, p->mapbase1 + TCR);
-	iowrite8(0x03, p->mapbase2 + TCR);
-
-	p->cs_enabled = true;
-	return 0;
-}
-
-static void tpu_clocksource_disable(struct clocksource *cs)
-{
-	struct tpu_priv *p = cs_to_priv(cs);
-
-	WARN_ON(!p->cs_enabled);
-
-	iowrite8(0, p->mapbase1 + TCR);
-	iowrite8(0, p->mapbase2 + TCR);
-	p->cs_enabled = false;
-}
-
-static struct tpu_priv tpu_priv = {
-	.cs = {
-		.name = "H8S_TPU",
-		.rating = 200,
-		.read = tpu_clocksource_read,
-		.enable = tpu_clocksource_enable,
-		.disable = tpu_clocksource_disable,
-		.mask = CLOCKSOURCE_MASK(sizeof(unsigned long) * 8),
-		.flags = CLOCK_SOURCE_IS_CONTINUOUS,
-	},
-};
-
-#define CH_L 0
-#define CH_H 1
-
-static int __init h8300_tpu_init(struct device_node *node)
-{
-	void __iomem *base[2];
-	struct clk *clk;
-	int ret = -ENXIO;
-
-	clk = of_clk_get(node, 0);
-	if (IS_ERR(clk)) {
-		pr_err("failed to get clock for clocksource\n");
-		return PTR_ERR(clk);
-	}
-
-	base[CH_L] = of_iomap(node, CH_L);
-	if (!base[CH_L]) {
-		pr_err("failed to map registers for clocksource\n");
-		goto free_clk;
-	}
-	base[CH_H] = of_iomap(node, CH_H);
-	if (!base[CH_H]) {
-		pr_err("failed to map registers for clocksource\n");
-		goto unmap_L;
-	}
-
-	tpu_priv.mapbase1 = base[CH_L];
-	tpu_priv.mapbase2 = base[CH_H];
-
-	return clocksource_register_hz(&tpu_priv.cs, clk_get_rate(clk) / 64);
-
-unmap_L:
-	iounmap(base[CH_H]);
-free_clk:
-	clk_put(clk);
-	return ret;
-}
-
-TIMER_OF_DECLARE(h8300_tpu, "renesas,tpu", h8300_tpu_init);
diff --git a/drivers/irqchip/Kconfig b/drivers/irqchip/Kconfig
index 135c156673a7..44fb8843e80e 100644
--- a/drivers/irqchip/Kconfig
+++ b/drivers/irqchip/Kconfig
@@ -342,17 +342,6 @@ config INGENIC_TCU_IRQ
 
 	  If unsure, say N.
 
-config RENESAS_H8300H_INTC
-        bool
-	select IRQ_DOMAIN
-
-config RENESAS_H8S_INTC
-	bool "Renesas H8S Interrupt Controller Support" if COMPILE_TEST
-	select IRQ_DOMAIN
-	help
-	  Enable support for the Renesas H8/300 Interrupt Controller, as found
-	  on Renesas H8S SoCs.
-
 config IMX_GPCV2
 	bool
 	select IRQ_DOMAIN
diff --git a/drivers/irqchip/Makefile b/drivers/irqchip/Makefile
index 9b1ffb0f98cc..5b67450a9538 100644
--- a/drivers/irqchip/Makefile
+++ b/drivers/irqchip/Makefile
@@ -70,8 +70,6 @@ obj-$(CONFIG_KEYSTONE_IRQ)		+= irq-keystone.o
 obj-$(CONFIG_MIPS_GIC)			+= irq-mips-gic.o
 obj-$(CONFIG_ARCH_MEDIATEK)		+= irq-mtk-sysirq.o irq-mtk-cirq.o
 obj-$(CONFIG_ARCH_DIGICOLOR)		+= irq-digicolor.o
-obj-$(CONFIG_RENESAS_H8300H_INTC)	+= irq-renesas-h8300h.o
-obj-$(CONFIG_RENESAS_H8S_INTC)		+= irq-renesas-h8s.o
 obj-$(CONFIG_ARCH_SA1100)		+= irq-sa11x0.o
 obj-$(CONFIG_INGENIC_IRQ)		+= irq-ingenic.o
 obj-$(CONFIG_INGENIC_TCU_IRQ)		+= irq-ingenic-tcu.o
diff --git a/drivers/irqchip/irq-renesas-h8300h.c b/drivers/irqchip/irq-renesas-h8300h.c
deleted file mode 100644
index 1054d74b7edd..000000000000
--- a/drivers/irqchip/irq-renesas-h8300h.c
+++ /dev/null
@@ -1,94 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * H8/300H interrupt controller driver
- *
- * Copyright 2015 Yoshinori Sato <ysato@users.sourceforge.jp>
- */
-
-#include <linux/init.h>
-#include <linux/irq.h>
-#include <linux/irqchip.h>
-#include <linux/of_address.h>
-#include <linux/of_irq.h>
-#include <asm/io.h>
-
-static const char ipr_bit[] = {
-	 7,  6,  5,  5,
-	 4,  4,  4,  4,  3,  3,  3,  3,
-	 2,  2,  2,  2,  1,  1,  1,  1,
-	 0,  0,  0,  0, 15, 15, 15, 15,
-	14, 14, 14, 14, 13, 13, 13, 13,
-	-1, -1, -1, -1, 11, 11, 11, 11,
-	10, 10, 10, 10,  9,  9,  9,  9,
-};
-
-static void __iomem *intc_baseaddr;
-
-#define IPR (intc_baseaddr + 6)
-
-static void h8300h_disable_irq(struct irq_data *data)
-{
-	int bit;
-	int irq = data->irq - 12;
-
-	bit = ipr_bit[irq];
-	if (bit >= 0) {
-		if (bit < 8)
-			ctrl_bclr(bit & 7, IPR);
-		else
-			ctrl_bclr(bit & 7, (IPR+1));
-	}
-}
-
-static void h8300h_enable_irq(struct irq_data *data)
-{
-	int bit;
-	int irq = data->irq - 12;
-
-	bit = ipr_bit[irq];
-	if (bit >= 0) {
-		if (bit < 8)
-			ctrl_bset(bit & 7, IPR);
-		else
-			ctrl_bset(bit & 7, (IPR+1));
-	}
-}
-
-struct irq_chip h8300h_irq_chip = {
-	.name		= "H8/300H-INTC",
-	.irq_enable	= h8300h_enable_irq,
-	.irq_disable	= h8300h_disable_irq,
-};
-
-static int irq_map(struct irq_domain *h, unsigned int virq,
-		   irq_hw_number_t hw_irq_num)
-{
-       irq_set_chip_and_handler(virq, &h8300h_irq_chip, handle_simple_irq);
-
-       return 0;
-}
-
-static const struct irq_domain_ops irq_ops = {
-       .map    = irq_map,
-       .xlate  = irq_domain_xlate_onecell,
-};
-
-static int __init h8300h_intc_of_init(struct device_node *intc,
-				      struct device_node *parent)
-{
-	struct irq_domain *domain;
-
-	intc_baseaddr = of_iomap(intc, 0);
-	BUG_ON(!intc_baseaddr);
-
-	/* All interrupt priority low */
-	writeb(0x00, IPR + 0);
-	writeb(0x00, IPR + 1);
-
-	domain = irq_domain_add_linear(intc, NR_IRQS, &irq_ops, NULL);
-	BUG_ON(!domain);
-	irq_set_default_host(domain);
-	return 0;
-}
-
-IRQCHIP_DECLARE(h8300h_intc, "renesas,h8300h-intc", h8300h_intc_of_init);
diff --git a/drivers/irqchip/irq-renesas-h8s.c b/drivers/irqchip/irq-renesas-h8s.c
deleted file mode 100644
index 4e2461bae944..000000000000
--- a/drivers/irqchip/irq-renesas-h8s.c
+++ /dev/null
@@ -1,102 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * H8S interrupt controller driver
- *
- * Copyright 2015 Yoshinori Sato <ysato@users.sourceforge.jp>
- */
-
-#include <linux/irq.h>
-#include <linux/irqchip.h>
-#include <linux/of_address.h>
-#include <linux/of_irq.h>
-#include <asm/io.h>
-
-static void *intc_baseaddr;
-#define IPRA (intc_baseaddr)
-
-static const unsigned char ipr_table[] = {
-	0x03, 0x02, 0x01, 0x00, 0x13, 0x12, 0x11, 0x10, /* 16 - 23 */
-	0x23, 0x22, 0x21, 0x20, 0x33, 0x32, 0x31, 0x30, /* 24 - 31 */
-	0x43, 0x42, 0x41, 0x40, 0x53, 0x53, 0x52, 0x52, /* 32 - 39 */
-	0x51, 0x51, 0x51, 0x51, 0x51, 0x51, 0x51, 0x51, /* 40 - 47 */
-	0x50, 0x50, 0x50, 0x50, 0x63, 0x63, 0x63, 0x63, /* 48 - 55 */
-	0x62, 0x62, 0x62, 0x62, 0x62, 0x62, 0x62, 0x62, /* 56 - 63 */
-	0x61, 0x61, 0x61, 0x61, 0x60, 0x60, 0x60, 0x60, /* 64 - 71 */
-	0x73, 0x73, 0x73, 0x73, 0x72, 0x72, 0x72, 0x72, /* 72 - 79 */
-	0x71, 0x71, 0x71, 0x71, 0x70, 0x83, 0x82, 0x81, /* 80 - 87 */
-	0x80, 0x80, 0x80, 0x80, 0x93, 0x93, 0x93, 0x93, /* 88 - 95 */
-	0x92, 0x92, 0x92, 0x92, 0x91, 0x91, 0x91, 0x91, /* 96 - 103 */
-	0x90, 0x90, 0x90, 0x90, 0xa3, 0xa3, 0xa3, 0xa3, /* 104 - 111 */
-	0xa2, 0xa2, 0xa2, 0xa2, 0xa1, 0xa1, 0xa1, 0xa1, /* 112 - 119 */
-	0xa0, 0xa0, 0xa0, 0xa0, 0xa0, 0xa0, 0xa0, 0xa0, /* 120 - 127 */
-};
-
-static void h8s_disable_irq(struct irq_data *data)
-{
-	int pos;
-	void __iomem *addr;
-	unsigned short pri;
-	int irq = data->irq;
-
-	addr = IPRA + ((ipr_table[irq - 16] & 0xf0) >> 3);
-	pos = (ipr_table[irq - 16] & 0x0f) * 4;
-	pri = ~(0x000f << pos);
-	pri &= readw(addr);
-	writew(pri, addr);
-}
-
-static void h8s_enable_irq(struct irq_data *data)
-{
-	int pos;
-	void __iomem *addr;
-	unsigned short pri;
-	int irq = data->irq;
-
-	addr = IPRA + ((ipr_table[irq - 16] & 0xf0) >> 3);
-	pos = (ipr_table[irq - 16] & 0x0f) * 4;
-	pri = ~(0x000f << pos);
-	pri &= readw(addr);
-	pri |= 1 << pos;
-	writew(pri, addr);
-}
-
-struct irq_chip h8s_irq_chip = {
-	.name		= "H8S-INTC",
-	.irq_enable	= h8s_enable_irq,
-	.irq_disable	= h8s_disable_irq,
-};
-
-static __init int irq_map(struct irq_domain *h, unsigned int virq,
-			  irq_hw_number_t hw_irq_num)
-{
-       irq_set_chip_and_handler(virq, &h8s_irq_chip, handle_simple_irq);
-
-       return 0;
-}
-
-static const struct irq_domain_ops irq_ops = {
-       .map    = irq_map,
-       .xlate  = irq_domain_xlate_onecell,
-};
-
-static int __init h8s_intc_of_init(struct device_node *intc,
-				   struct device_node *parent)
-{
-	struct irq_domain *domain;
-	int n;
-
-	intc_baseaddr = of_iomap(intc, 0);
-	BUG_ON(!intc_baseaddr);
-
-	/* All interrupt priority is 0 (disable) */
-	/* IPRA to IPRK */
-	for (n = 0; n <= 'k' - 'a'; n++)
-		writew(0x0000, IPRA + (n * 2));
-
-	domain = irq_domain_add_linear(intc, NR_IRQS, &irq_ops, NULL);
-	BUG_ON(!domain);
-	irq_set_default_host(domain);
-	return 0;
-}
-
-IRQCHIP_DECLARE(h8s_intc, "renesas,h8s-intc", h8s_intc_of_init);
diff --git a/drivers/net/ethernet/smsc/Kconfig b/drivers/net/ethernet/smsc/Kconfig
index 72e42a868346..2524c907f386 100644
--- a/drivers/net/ethernet/smsc/Kconfig
+++ b/drivers/net/ethernet/smsc/Kconfig
@@ -8,7 +8,7 @@ config NET_VENDOR_SMSC
 	default y
 	depends on ARM || ARM64 || ATARI_ETHERNAT || COLDFIRE || \
 		   ISA || MAC || MIPS || NIOS2 || PCI || \
-		   PCMCIA || SUPERH || XTENSA || H8300 || COMPILE_TEST
+		   PCMCIA || SUPERH || XTENSA || COMPILE_TEST
 	help
 	  If you have a network (Ethernet) card belonging to this class, say Y.
 
@@ -40,7 +40,7 @@ config SMC91X
 	select MII
 	depends on !OF || GPIOLIB
 	depends on ARM || ARM64 || ATARI_ETHERNAT || COLDFIRE || \
-		   MIPS || NIOS2 || SUPERH || XTENSA || H8300 || COMPILE_TEST
+		   MIPS || NIOS2 || SUPERH || XTENSA || COMPILE_TEST
 	help
 	  This is a driver for SMC's 91x series of Ethernet chipsets,
 	  including the SMC91C94 and the SMC91C111. Say Y if you want it
diff --git a/drivers/net/ethernet/smsc/smc91x.h b/drivers/net/ethernet/smsc/smc91x.h
index 387539a8094b..c521ea8f94f2 100644
--- a/drivers/net/ethernet/smsc/smc91x.h
+++ b/drivers/net/ethernet/smsc/smc91x.h
@@ -182,17 +182,6 @@ static inline void mcf_outsw(void *a, unsigned char *p, int l)
 
 #define SMC_IRQ_FLAGS		0
 
-#elif defined(CONFIG_H8300)
-#define SMC_CAN_USE_8BIT	1
-#define SMC_CAN_USE_16BIT	0
-#define SMC_CAN_USE_32BIT	0
-#define SMC_NOWAIT		0
-
-#define SMC_inb(a, r)		ioread8((a) + (r))
-#define SMC_outb(v, a, r)	iowrite8(v, (a) + (r))
-#define SMC_insb(a, r, p, l)	ioread8_rep((a) + (r), p, l)
-#define SMC_outsb(a, r, p, l)	iowrite8_rep((a) + (r), p, l)
-
 #else
 
 /*
diff --git a/drivers/tty/serial/Kconfig b/drivers/tty/serial/Kconfig
index 6949e883ffab..dbac90e2e209 100644
--- a/drivers/tty/serial/Kconfig
+++ b/drivers/tty/serial/Kconfig
@@ -654,7 +654,7 @@ config SERIAL_IP22_ZILOG_CONSOLE
 
 config SERIAL_SH_SCI
 	tristate "SuperH SCI(F) serial port support"
-	depends on SUPERH || ARCH_RENESAS || H8300 || COMPILE_TEST
+	depends on SUPERH || ARCH_RENESAS || COMPILE_TEST
 	select SERIAL_CORE
 	select SERIAL_MCTRL_GPIO if GPIOLIB
 
@@ -663,7 +663,6 @@ config SERIAL_SH_SCI_NR_UARTS
 	range 1 64 if 64BIT
 	range 1 32 if !64BIT
 	depends on SERIAL_SH_SCI
-	default "3" if H8300
 	default "10" if SUPERH
 	default "18" if ARCH_RENESAS
 	default "2"
@@ -679,7 +678,7 @@ config SERIAL_SH_SCI_EARLYCON
 	depends on SERIAL_SH_SCI=y
 	select SERIAL_CORE_CONSOLE
 	select SERIAL_EARLYCON
-	default ARCH_RENESAS || H8300
+	default ARCH_RENESAS
 
 config SERIAL_SH_SCI_DMA
 	bool "DMA support" if EXPERT