1 files changed, 0 insertions, 100 deletions
diff --git a/target/linux/ramips/patches-3.14/0021-MIPS-ralink-add-cpu-frequency-scaling.patch b/target/linux/ramips/patches-3.14/0021-MIPS-ralink-add-cpu-frequency-scaling.patch
deleted file mode 100644
index d60d651..0000000
--- a/target/linux/ramips/patches-3.14/0021-MIPS-ralink-add-cpu-frequency-scaling.patch
+++ /dev/null
@@ -1,100 +0,0 @@
-From e76ecd496c9b074ab21b17f12494d823a407e89a Mon Sep 17 00:00:00 2001
-From: John Crispin <blogic@openwrt.org>
-Date: Sun, 28 Jul 2013 16:26:41 +0200
-Subject: [PATCH 21/57] MIPS: ralink: add cpu frequency scaling
-
-This feature will break udelay() and cause the delay loop to have longer delays
-when the frequency is scaled causing a performance hit.
-
-Signed-off-by: John Crispin <blogic@openwrt.org>
----
- arch/mips/ralink/cevt-rt3352.c |   36 ++++++++++++++++++++++++++++++++++++
- 1 file changed, 36 insertions(+)
-
-diff --git a/arch/mips/ralink/cevt-rt3352.c b/arch/mips/ralink/cevt-rt3352.c
-index 24bf057..4174b40 100644
---- a/arch/mips/ralink/cevt-rt3352.c
-+++ b/arch/mips/ralink/cevt-rt3352.c
-@@ -29,6 +29,10 @@
- /* enable the counter */
- #define CFG_CNT_EN		0x1
- 
-+/* mt7620 frequency scaling defines */
-+#define CLK_LUT_CFG	0x40
-+#define SLEEP_EN	BIT(31)
-+
- struct systick_device {
- 	void __iomem *membase;
- 	struct clock_event_device dev;
-@@ -36,6 +40,8 @@ struct systick_device {
- 	int freq_scale;
- };
- 
-+static void (*systick_freq_scaling)(struct systick_device *sdev, int status);
-+
- static void systick_set_clock_mode(enum clock_event_mode mode,
- 				struct clock_event_device *evt);
- 
-@@ -87,6 +93,21 @@ static struct irqaction systick_irqaction = {
- 	.dev_id = &systick.dev,
- };
- 
-+static inline void mt7620_freq_scaling(struct systick_device *sdev, int status)
-+{
-+	if (sdev->freq_scale == status)
-+		return;
-+
-+	sdev->freq_scale = status;
-+
-+	pr_info("%s: %s autosleep mode\n", systick.dev.name,
-+			(status) ? ("enable") : ("disable"));
-+	if (status)
-+		rt_sysc_w32(rt_sysc_r32(CLK_LUT_CFG) | SLEEP_EN, CLK_LUT_CFG);
-+	else
-+		rt_sysc_w32(rt_sysc_r32(CLK_LUT_CFG) & ~SLEEP_EN, CLK_LUT_CFG);
-+}
-+
- static void systick_set_clock_mode(enum clock_event_mode mode,
- 				struct clock_event_device *evt)
- {
-@@ -101,9 +122,13 @@ static void systick_set_clock_mode(enum clock_event_mode mode,
- 		sdev->irq_requested = 1;
- 		iowrite32(CFG_EXT_STK_EN | CFG_CNT_EN,
- 				systick.membase + SYSTICK_CONFIG);
-+		if (systick_freq_scaling)
-+			systick_freq_scaling(sdev, 1);
- 		break;
- 
- 	case CLOCK_EVT_MODE_SHUTDOWN:
-+		if (systick_freq_scaling)
-+			systick_freq_scaling(sdev, 0);
- 		if (sdev->irq_requested)
- 			free_irq(systick.dev.irq, &systick_irqaction);
- 		sdev->irq_requested = 0;
-@@ -116,12 +141,23 @@ static void systick_set_clock_mode(enum clock_event_mode mode,
- 	}
- }
- 
-+static const struct of_device_id systick_match[] = {
-+	{ .compatible = "ralink,mt7620-systick", .data = mt7620_freq_scaling},
-+	{},
-+};
-+
- static void __init ralink_systick_init(struct device_node *np)
- {
-+	const struct of_device_id *match;
-+
- 	systick.membase = of_iomap(np, 0);
- 	if (!systick.membase)
- 		return;
- 
-+	match = of_match_node(systick_match, np);
-+	if (match)
-+		systick_freq_scaling = match->data;
-+
- 	systick_irqaction.name = np->name;
- 	systick.dev.name = np->name;
- 	clockevents_calc_mult_shift(&systick.dev, SYSTICK_FREQ, 60);
--- 
-1.7.10.4
-