From 3abf5ce6564e24a388b86caf1a00f91f4262b312 Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Mon, 7 Mar 2016 17:56:53 +0000 Subject: ramips: convert the remaining subtargets to 4.4 Signed-off-by: Felix Fietkau SVN-Revision: 48954 --- ...006-MIPS-ralink-add-cpu-frequency-scaling.patch | 93 ---------------------- 1 file changed, 93 deletions(-) delete mode 100644 target/linux/ramips/patches-4.3/0006-MIPS-ralink-add-cpu-frequency-scaling.patch (limited to 'target/linux/ramips/patches-4.3/0006-MIPS-ralink-add-cpu-frequency-scaling.patch') diff --git a/target/linux/ramips/patches-4.3/0006-MIPS-ralink-add-cpu-frequency-scaling.patch b/target/linux/ramips/patches-4.3/0006-MIPS-ralink-add-cpu-frequency-scaling.patch deleted file mode 100644 index f953aee9ff..0000000000 --- a/target/linux/ramips/patches-4.3/0006-MIPS-ralink-add-cpu-frequency-scaling.patch +++ /dev/null @@ -1,93 +0,0 @@ -From bd30f19a006fb52bac80c6463c49dd2f4159f4ac Mon Sep 17 00:00:00 2001 -From: John Crispin -Date: Sun, 28 Jul 2013 16:26:41 +0200 -Subject: [PATCH 06/53] 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 | 38 ++++++++++++++++++++++++++++++++++++++ - 1 file changed, 38 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; -@@ -36,9 +40,26 @@ struct systick_device { - int freq_scale; - }; - -+static void (*systick_freq_scaling)(struct systick_device *sdev, int status); -+ - static int systick_set_oneshot(struct clock_event_device *evt); - static int systick_shutdown(struct clock_event_device *evt); - -+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 int systick_next_event(unsigned long delta, - struct clock_event_device *evt) - { -@@ -99,6 +120,9 @@ static int systick_shutdown(struct clock - sdev->irq_requested = 0; - iowrite32(0, systick.membase + SYSTICK_CONFIG); - -+ if (systick_freq_scaling) -+ systick_freq_scaling(sdev, 0); -+ - return 0; - } - -@@ -114,15 +138,29 @@ static int systick_set_oneshot(struct cl - iowrite32(CFG_EXT_STK_EN | CFG_CNT_EN, - systick.membase + SYSTICK_CONFIG); - -+ if (systick_freq_scaling) -+ systick_freq_scaling(sdev, 1); -+ - return 0; - } - -+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