1 files changed, 0 insertions, 192 deletions
diff --git a/target/linux/ramips/patches-3.10/0011-MIPS-ralink-add-support-for-systick-timer-found-on-n.patch b/target/linux/ramips/patches-3.10/0011-MIPS-ralink-add-support-for-systick-timer-found-on-n.patch
deleted file mode 100644
index 5626ada..0000000
--- a/target/linux/ramips/patches-3.10/0011-MIPS-ralink-add-support-for-systick-timer-found-on-n.patch
+++ /dev/null
@@ -1,192 +0,0 @@
-From 3b511d972b556712f89ccc68825c0ec8f398dc5c Mon Sep 17 00:00:00 2001
-From: John Crispin <blogic@openwrt.org>
-Date: Sun, 28 Jul 2013 13:46:09 +0200
-Subject: [PATCH 11/25] MIPS: ralink: add support for systick timer found on
- newer ralink SoC
-
-Newer Ralink SoC (MT7620x and RT5350) have a 50KHz clock that runs independent
-of the SoC master clock. If we want to automatic frequency scaling to work we
-need to use the systick timer as the clock source.
-
-Signed-off-by: John Crispin <blogic@openwrt.org>
----
- arch/mips/ralink/Kconfig       |    7 ++
- arch/mips/ralink/Makefile      |    2 +
- arch/mips/ralink/cevt-rt3352.c |  145 ++++++++++++++++++++++++++++++++++++++++
- 3 files changed, 154 insertions(+)
- create mode 100644 arch/mips/ralink/cevt-rt3352.c
-
---- a/arch/mips/ralink/Kconfig
-+++ b/arch/mips/ralink/Kconfig
-@@ -1,5 +1,12 @@
- if RALINK
- 
-+config CLKEVT_RT3352
-+	bool "Systick Clockevent source"
-+	depends on SOC_RT305X || SOC_MT7620
-+	default y
-+	select CLKSRC_OF
-+	select CLKSRC_MMIO
-+
- choice
- 	prompt "Ralink SoC selection"
- 	default SOC_RT305X
---- a/arch/mips/ralink/Makefile
-+++ b/arch/mips/ralink/Makefile
-@@ -8,6 +8,8 @@
- 
- obj-y := prom.o of.o reset.o clk.o irq.o timer.o
- 
-+obj-$(CONFIG_CLKEVT_RT3352) += cevt-rt3352.o
-+
- obj-$(CONFIG_SOC_RT288X) += rt288x.o
- obj-$(CONFIG_SOC_RT305X) += rt305x.o
- obj-$(CONFIG_SOC_RT3883) += rt3883.o
---- /dev/null
-+++ b/arch/mips/ralink/cevt-rt3352.c
-@@ -0,0 +1,145 @@
-+/*
-+ * This file is subject to the terms and conditions of the GNU General Public
-+ * License.  See the file "COPYING" in the main directory of this archive
-+ * for more details.
-+ *
-+ * Copyright (C) 2013 by John Crispin <blogic@openwrt.org>
-+ */
-+
-+#include <linux/clockchips.h>
-+#include <linux/clocksource.h>
-+#include <linux/interrupt.h>
-+#include <linux/reset.h>
-+#include <linux/init.h>
-+#include <linux/time.h>
-+#include <linux/of.h>
-+#include <linux/of_irq.h>
-+#include <linux/of_address.h>
-+
-+#include <asm/mach-ralink/ralink_regs.h>
-+
-+#define SYSTICK_FREQ		(50 * 1000)
-+
-+#define SYSTICK_CONFIG		0x00
-+#define SYSTICK_COMPARE		0x04
-+#define SYSTICK_COUNT		0x08
-+
-+/* route systick irq to mips irq 7 instead of the r4k-timer */
-+#define CFG_EXT_STK_EN		0x2
-+/* enable the counter */
-+#define CFG_CNT_EN		0x1
-+
-+struct systick_device {
-+	void __iomem *membase;
-+	struct clock_event_device dev;
-+	int irq_requested;
-+	int freq_scale;
-+};
-+
-+static void systick_set_clock_mode(enum clock_event_mode mode,
-+				struct clock_event_device *evt);
-+
-+static int systick_next_event(unsigned long delta,
-+				struct clock_event_device *evt)
-+{
-+	struct systick_device *sdev;
-+	u32 count;
-+
-+	sdev = container_of(evt, struct systick_device, dev);
-+	count = ioread32(sdev->membase + SYSTICK_COUNT);
-+	count = (count + delta) % SYSTICK_FREQ;
-+	iowrite32(count + delta, sdev->membase + SYSTICK_COMPARE);
-+
-+	return 0;
-+}
-+
-+static void systick_event_handler(struct clock_event_device *dev)
-+{
-+	/* noting to do here */
-+}
-+
-+static irqreturn_t systick_interrupt(int irq, void *dev_id)
-+{
-+	struct clock_event_device *dev = (struct clock_event_device *) dev_id;
-+
-+	dev->event_handler(dev);
-+
-+	return IRQ_HANDLED;
-+}
-+
-+static struct systick_device systick = {
-+	.dev = {
-+		/*
-+		 * cevt-r4k uses 300, make sure systick
-+		 * gets used if available
-+		 */
-+		.rating		= 310,
-+		.features	= CLOCK_EVT_FEAT_ONESHOT,
-+		.set_next_event	= systick_next_event,
-+		.set_mode	= systick_set_clock_mode,
-+		.event_handler	= systick_event_handler,
-+	},
-+};
-+
-+static struct irqaction systick_irqaction = {
-+	.handler = systick_interrupt,
-+	.flags = IRQF_PERCPU | IRQF_TIMER,
-+	.dev_id = &systick.dev,
-+};
-+
-+static void systick_set_clock_mode(enum clock_event_mode mode,
-+				struct clock_event_device *evt)
-+{
-+	struct systick_device *sdev;
-+
-+	sdev = container_of(evt, struct systick_device, dev);
-+
-+	switch (mode) {
-+	case CLOCK_EVT_MODE_ONESHOT:
-+		if (!sdev->irq_requested)
-+			setup_irq(systick.dev.irq, &systick_irqaction);
-+		sdev->irq_requested = 1;
-+		iowrite32(CFG_EXT_STK_EN | CFG_CNT_EN,
-+				systick.membase + SYSTICK_CONFIG);
-+		break;
-+
-+	case CLOCK_EVT_MODE_SHUTDOWN:
-+		if (sdev->irq_requested)
-+			free_irq(systick.dev.irq, &systick_irqaction);
-+		sdev->irq_requested = 0;
-+		iowrite32(0, systick.membase + SYSTICK_CONFIG);
-+		break;
-+
-+	default:
-+		pr_err("%s: Unhandeled mips clock_mode\n", systick.dev.name);
-+		break;
-+	}
-+}
-+
-+static void __init ralink_systick_init(struct device_node *np)
-+{
-+	systick.membase = of_iomap(np, 0);
-+	if (!systick.membase)
-+		return;
-+
-+	systick_irqaction.name = np->name;
-+	systick.dev.name = np->name;
-+	clockevents_calc_mult_shift(&systick.dev, SYSTICK_FREQ, 60);
-+	systick.dev.max_delta_ns = clockevent_delta2ns(0x7fff, &systick.dev);
-+	systick.dev.min_delta_ns = clockevent_delta2ns(0x3, &systick.dev);
-+	systick.dev.irq = irq_of_parse_and_map(np, 0);
-+	if (!systick.dev.irq) {
-+		pr_err("%s: request_irq failed", np->name);
-+		return;
-+	}
-+
-+	clocksource_mmio_init(systick.membase + SYSTICK_COUNT, np->name,
-+			SYSTICK_FREQ, 301, 16, clocksource_mmio_readl_up);
-+
-+	clockevents_register_device(&systick.dev);
-+
-+	pr_info("%s: runing - mult: %d, shift: %d\n",
-+			np->name, systick.dev.mult, systick.dev.shift);
-+}
-+
-+CLOCKSOURCE_OF_DECLARE(systick, "ralink,cevt-systick", ralink_systick_init);