From c59b0d680a93e745d8606dbd69843137e51d12c6 Mon Sep 17 00:00:00 2001 From: John Crispin Date: Mon, 16 Mar 2015 07:39:46 +0000 Subject: ralink: drop 3.14 support Signed-off-by: John Crispin git-svn-id: svn://svn.openwrt.org/openwrt/trunk@44811 3c298f89-4303-0410-b956-a3cf2f4a3e73 --- ...021-MIPS-ralink-add-cpu-frequency-scaling.patch | 95 ---------------------- 1 file changed, 95 deletions(-) delete mode 100644 target/linux/ramips/patches-3.14/0021-MIPS-ralink-add-cpu-frequency-scaling.patch (limited to '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 index 0e567cb2f0..0000000000 --- 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 -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 ---- - 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); -- cgit v1.2.3