ralink: drop 3.14 support

[openwrt/staging/wigyori.git] / target / linux / ramips / patches-3.14 / 0021-MIPS-ralink-add-cpu-frequency-scaling.patch

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 (file)
index 0e567cb..0000000
--- a/target/linux/ramips/patches-3.14/0021-MIPS-ralink-add-cpu-frequency-scaling.patch
+++ /dev/null
@@ -1,95 +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(+)
-
---- 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_irqactio
-       .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
-               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
-       }
- }
- 
-+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);