From d4b8b8d62fcb34be61c325efa6f91d937d19a616 Mon Sep 17 00:00:00 2001 From: John Crispin Date: Sun, 14 Jul 2013 18:00:34 +0000 Subject: ralink: drop v3.8 support Signed-off-by: John Crispin git-svn-id: svn://svn.openwrt.org/openwrt/trunk@37311 3c298f89-4303-0410-b956-a3cf2f4a3e73 --- ...-MIPS-ralink-add-support-for-systick-time.patch | 282 --------------------- 1 file changed, 282 deletions(-) delete mode 100644 target/linux/ramips/patches-3.8/0079-clocksource-MIPS-ralink-add-support-for-systick-time.patch (limited to 'target/linux/ramips/patches-3.8/0079-clocksource-MIPS-ralink-add-support-for-systick-time.patch') diff --git a/target/linux/ramips/patches-3.8/0079-clocksource-MIPS-ralink-add-support-for-systick-time.patch b/target/linux/ramips/patches-3.8/0079-clocksource-MIPS-ralink-add-support-for-systick-time.patch deleted file mode 100644 index 32c96ec046..0000000000 --- a/target/linux/ramips/patches-3.8/0079-clocksource-MIPS-ralink-add-support-for-systick-time.patch +++ /dev/null @@ -1,282 +0,0 @@ -From 4f3ae2a7ee1b1c9b9cab287c828f2ed7b1858495 Mon Sep 17 00:00:00 2001 -From: John Crispin -Date: Thu, 20 Jun 2013 19:21:52 +0200 -Subject: [PATCH 79/79] clocksource: MIPS: ralink: add support for systick - timer found on newer ralink SoC - -Signed-off-by: John Crispin -+ */ -+ -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+ -+#include -+#include -+ -+#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 = container_of(evt, struct systick_device, dev); -+ u32 count; -+ -+ 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, -+}; -+ -+/* ugly hack */ -+#ifdef CONFIG_SOC_MT7620 -+ -+#define CLK_LUT_CFG 0x40 -+#define SLEEP_EN BIT(31) -+ -+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); -+} -+#else -+static inline void mt7620_freq_scaling(struct systick_device *sdev, int status) {} -+#endif -+ -+static void systick_set_clock_mode(enum clock_event_mode mode, -+ struct clock_event_device *evt) -+{ -+ struct systick_device *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); -+ mt7620_freq_scaling(sdev, 1); -+ 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); -+ mt7620_freq_scaling(sdev, 0); -+ 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) { -+ pr_err("%s: of_iomap failed", np->name); -+ return; -+ } -+ -+ clocksource_mmio_init(systick.membase + SYSTICK_COUNT, np->name, -+ SYSTICK_FREQ, 301, 16, clocksource_mmio_readl_up); -+ -+ systick_irqaction.name = np->name; -+ systick.dev.name = np->name; -+ clockevent_set_clock(&systick.dev, SYSTICK_FREQ); -+ 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) -+ panic("%s: request_irq failed", np->name); -+ -+ 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); --- -1.7.10.4 - -- cgit v1.2.3