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authorlars <lars@3c298f89-4303-0410-b956-a3cf2f4a3e73>2011-01-06 01:33:19 +0000
committerlars <lars@3c298f89-4303-0410-b956-a3cf2f4a3e73>2011-01-06 01:33:19 +0000
commit6ea4c6c0f2ae52def12bf2f77edd69e314152eca (patch)
tree5dcc3eb14ad28d2ea12e92674b6f35dee3b0b575 /target/linux/xburst/patches-2.6.35/006-clocksource.patch
parent12cb8e47f82cfc3132962382d3a290028548b902 (diff)
[xburst] Drop support for older kernel versions
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@24915 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'target/linux/xburst/patches-2.6.35/006-clocksource.patch')
-rw-r--r--target/linux/xburst/patches-2.6.35/006-clocksource.patch165
1 files changed, 0 insertions, 165 deletions
diff --git a/target/linux/xburst/patches-2.6.35/006-clocksource.patch b/target/linux/xburst/patches-2.6.35/006-clocksource.patch
deleted file mode 100644
index dfb31c1fe9..0000000000
--- a/target/linux/xburst/patches-2.6.35/006-clocksource.patch
+++ /dev/null
@@ -1,165 +0,0 @@
-From ebf176a38105200dca51a96ad1535c8d56235653 Mon Sep 17 00:00:00 2001
-From: Lars-Peter Clausen <lars@metafoo.de>
-Date: Sat, 19 Jun 2010 04:08:10 +0000
-Subject: [PATCH] MIPS: JZ4740: Add clocksource/clockevent support.
-
-Add clocksource and clockevent support for the timer/counter unit on
-JZ4740 SoCs.
-
-Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
-Cc: linux-mips@linux-mips.org
-Cc: linux-kernel@vger.kernel.org
-Patchwork: https://patchwork.linux-mips.org/patch/1397/
-Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
----
- arch/mips/jz4740/time.c | 144 +++++++++++++++++++++++++++++++++++++++++++++++
- 1 files changed, 144 insertions(+), 0 deletions(-)
- create mode 100644 arch/mips/jz4740/time.c
-
---- /dev/null
-+++ b/arch/mips/jz4740/time.c
-@@ -0,0 +1,144 @@
-+/*
-+ * Copyright (C) 2010, Lars-Peter Clausen <lars@metafoo.de>
-+ * JZ4740 platform time support
-+ *
-+ * This program is free software; you can redistribute it and/or modify it
-+ * under the terms of the GNU General Public License as published by the
-+ * Free Software Foundation; either version 2 of the License, or (at your
-+ * option) any later version.
-+ *
-+ * You should have received a copy of the GNU General Public License along
-+ * with this program; if not, write to the Free Software Foundation, Inc.,
-+ * 675 Mass Ave, Cambridge, MA 02139, USA.
-+ *
-+ */
-+
-+#include <linux/interrupt.h>
-+#include <linux/kernel.h>
-+#include <linux/time.h>
-+
-+#include <linux/clockchips.h>
-+
-+#include <asm/mach-jz4740/irq.h>
-+#include <asm/time.h>
-+
-+#include "clock.h"
-+#include "timer.h"
-+
-+#define TIMER_CLOCKEVENT 0
-+#define TIMER_CLOCKSOURCE 1
-+
-+static uint16_t jz4740_jiffies_per_tick;
-+
-+static cycle_t jz4740_clocksource_read(struct clocksource *cs)
-+{
-+ return jz4740_timer_get_count(TIMER_CLOCKSOURCE);
-+}
-+
-+static struct clocksource jz4740_clocksource = {
-+ .name = "jz4740-timer",
-+ .rating = 200,
-+ .read = jz4740_clocksource_read,
-+ .mask = CLOCKSOURCE_MASK(16),
-+ .flags = CLOCK_SOURCE_IS_CONTINUOUS,
-+};
-+
-+static irqreturn_t jz4740_clockevent_irq(int irq, void *devid)
-+{
-+ struct clock_event_device *cd = devid;
-+
-+ jz4740_timer_ack_full(TIMER_CLOCKEVENT);
-+
-+ if (cd->mode != CLOCK_EVT_MODE_PERIODIC)
-+ jz4740_timer_disable(TIMER_CLOCKEVENT);
-+
-+ cd->event_handler(cd);
-+
-+ return IRQ_HANDLED;
-+}
-+
-+static void jz4740_clockevent_set_mode(enum clock_event_mode mode,
-+ struct clock_event_device *cd)
-+{
-+ switch (mode) {
-+ case CLOCK_EVT_MODE_PERIODIC:
-+ jz4740_timer_set_count(TIMER_CLOCKEVENT, 0);
-+ jz4740_timer_set_period(TIMER_CLOCKEVENT, jz4740_jiffies_per_tick);
-+ case CLOCK_EVT_MODE_RESUME:
-+ jz4740_timer_irq_full_enable(TIMER_CLOCKEVENT);
-+ jz4740_timer_enable(TIMER_CLOCKEVENT);
-+ break;
-+ case CLOCK_EVT_MODE_ONESHOT:
-+ case CLOCK_EVT_MODE_SHUTDOWN:
-+ jz4740_timer_disable(TIMER_CLOCKEVENT);
-+ break;
-+ default:
-+ break;
-+ }
-+}
-+
-+static int jz4740_clockevent_set_next(unsigned long evt,
-+ struct clock_event_device *cd)
-+{
-+ jz4740_timer_set_count(TIMER_CLOCKEVENT, 0);
-+ jz4740_timer_set_period(TIMER_CLOCKEVENT, evt);
-+ jz4740_timer_enable(TIMER_CLOCKEVENT);
-+
-+ return 0;
-+}
-+
-+static struct clock_event_device jz4740_clockevent = {
-+ .name = "jz4740-timer",
-+ .features = CLOCK_EVT_FEAT_PERIODIC,
-+ .set_next_event = jz4740_clockevent_set_next,
-+ .set_mode = jz4740_clockevent_set_mode,
-+ .rating = 200,
-+ .irq = JZ4740_IRQ_TCU0,
-+};
-+
-+static struct irqaction timer_irqaction = {
-+ .handler = jz4740_clockevent_irq,
-+ .flags = IRQF_PERCPU | IRQF_TIMER,
-+ .name = "jz4740-timerirq",
-+ .dev_id = &jz4740_clockevent,
-+};
-+
-+void __init plat_time_init(void)
-+{
-+ int ret;
-+ uint32_t clk_rate;
-+ uint16_t ctrl;
-+
-+ jz4740_timer_init();
-+
-+ clk_rate = jz4740_clock_bdata.ext_rate >> 4;
-+ jz4740_jiffies_per_tick = DIV_ROUND_CLOSEST(clk_rate, HZ);
-+
-+ clockevent_set_clock(&jz4740_clockevent, clk_rate);
-+ jz4740_clockevent.min_delta_ns = clockevent_delta2ns(100, &jz4740_clockevent);
-+ jz4740_clockevent.max_delta_ns = clockevent_delta2ns(0xffff, &jz4740_clockevent);
-+ jz4740_clockevent.cpumask = cpumask_of(0);
-+
-+ clockevents_register_device(&jz4740_clockevent);
-+
-+ clocksource_set_clock(&jz4740_clocksource, clk_rate);
-+ ret = clocksource_register(&jz4740_clocksource);
-+
-+ if (ret)
-+ printk(KERN_ERR "Failed to register clocksource: %d\n", ret);
-+
-+ setup_irq(JZ4740_IRQ_TCU0, &timer_irqaction);
-+
-+ ctrl = JZ_TIMER_CTRL_PRESCALE_16 | JZ_TIMER_CTRL_SRC_EXT;
-+
-+ jz4740_timer_set_ctrl(TIMER_CLOCKEVENT, ctrl);
-+ jz4740_timer_set_ctrl(TIMER_CLOCKSOURCE, ctrl);
-+
-+ jz4740_timer_set_period(TIMER_CLOCKEVENT, jz4740_jiffies_per_tick);
-+ jz4740_timer_irq_full_enable(TIMER_CLOCKEVENT);
-+
-+ jz4740_timer_set_period(TIMER_CLOCKSOURCE, 0xffff);
-+
-+ jz4740_timer_enable(TIMER_CLOCKEVENT);
-+ jz4740_timer_enable(TIMER_CLOCKSOURCE);
-+}