Merge branch 'remove-h8300' of git://git.infradead.org/users/hch/misc into asm-generic

* 'remove-h8300' of git://git.infradead.org/users/hch/misc:
  remove the h8300 architecture

This is clearly the least actively maintained architecture we have at
the moment, and probably the least useful. It is now the only one that
does not support MMUs at all, and most of the boards only support 4MB
of RAM, out of which the defconfig kernel needs more than half just
for .text/.data.

Guenter Roeck did the original patch to remove the architecture in 2013
after it had already been obsolete for a while, and Yoshinori Sato brought
it back in a much more modern form in 2015. Looking at the git history
since the reinstantiation, it's clear that almost all commits in the tree
are build fixes or cross-architecture cleanups:

$ git log --no-merges --format=%an v4.5.. arch/h8300/  | sort | uniq
-c | sort -rn | head -n 12
     25 Masahiro Yamada
     18 Christoph Hellwig
     14 Mike Rapoport
      9 Arnd Bergmann
      8 Mark Rutland
      7 Peter Zijlstra
      6 Kees Cook
      6 Ingo Molnar
      6 Al Viro
      5 Randy Dunlap
      4 Yury Norov

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

1 files changed, 0 insertions, 211 deletions

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);