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Diffstat (limited to 'target/linux/ramips/patches-3.18/0066-cevt.patch')
-rw-r--r--target/linux/ramips/patches-3.18/0066-cevt.patch151
1 files changed, 0 insertions, 151 deletions
diff --git a/target/linux/ramips/patches-3.18/0066-cevt.patch b/target/linux/ramips/patches-3.18/0066-cevt.patch
deleted file mode 100644
index 9eb6cb612b..0000000000
--- a/target/linux/ramips/patches-3.18/0066-cevt.patch
+++ /dev/null
@@ -1,151 +0,0 @@
---- a/arch/mips/ralink/cevt-rt3352.c
-+++ b/arch/mips/ralink/cevt-rt3352.c
-@@ -45,18 +45,33 @@ static void (*systick_freq_scaling)(stru
- static void systick_set_clock_mode(enum clock_event_mode mode,
- struct clock_event_device *evt);
-
-+static inline unsigned int read_count(struct systick_device *sdev)
-+{
-+ return ioread32(sdev->membase + SYSTICK_COUNT);
-+}
-+
-+static inline unsigned int read_compare(struct systick_device *sdev)
-+{
-+ return ioread32(sdev->membase + SYSTICK_COMPARE);
-+}
-+
-+static inline void write_compare(struct systick_device *sdev, unsigned int val)
-+{
-+ iowrite32(val, sdev->membase + SYSTICK_COMPARE);
-+}
-+
- static int systick_next_event(unsigned long delta,
- struct clock_event_device *evt)
- {
- struct systick_device *sdev;
-- u32 count;
-+ int res;
-
- sdev = container_of(evt, struct systick_device, dev);
-- count = ioread32(sdev->membase + SYSTICK_COUNT);
-- count = (count + delta) % SYSTICK_FREQ;
-- iowrite32(count, sdev->membase + SYSTICK_COMPARE);
-+ delta += read_count(sdev);
-+ write_compare(sdev, delta);
-+ res = ((int)(read_count(sdev) - delta) >= 0) ? -ETIME : 0;
-
-- return 0;
-+ return res;
- }
-
- static void systick_event_handler(struct clock_event_device *dev)
-@@ -66,20 +81,25 @@ static void systick_event_handler(struct
-
- static irqreturn_t systick_interrupt(int irq, void *dev_id)
- {
-- struct clock_event_device *dev = (struct clock_event_device *) dev_id;
-+ int ret = 0;
-+ struct clock_event_device *cdev;
-+ struct systick_device *sdev;
-
-- dev->event_handler(dev);
-+ if (read_c0_cause() & STATUSF_IP7) {
-+ cdev = (struct clock_event_device *) dev_id;
-+ sdev = container_of(cdev, struct systick_device, dev);
-+
-+ /* Clear Count/Compare Interrupt */
-+ write_compare(sdev, read_compare(sdev));
-+ cdev->event_handler(cdev);
-+ ret = 1;
-+ }
-
-- return IRQ_HANDLED;
-+ return IRQ_RETVAL(ret);
- }
-
- 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,
-@@ -126,13 +146,14 @@ static void systick_set_clock_mode(enum
- systick_freq_scaling(sdev, 1);
- break;
-
-+ case CLOCK_EVT_MODE_UNUSED:
- 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);
-+ remove_irq(systick.dev.irq, &systick_irqaction);
- sdev->irq_requested = 0;
-- iowrite32(0, systick.membase + SYSTICK_CONFIG);
-+ iowrite32(CFG_CNT_EN, systick.membase + SYSTICK_CONFIG);
- break;
-
- default:
-@@ -142,38 +163,45 @@ static void systick_set_clock_mode(enum
- }
-
- static const struct of_device_id systick_match[] = {
-- { .compatible = "ralink,mt7620-systick", .data = mt7620_freq_scaling},
-+ { .compatible = "ralink,mt7620a-systick", .data = mt7620_freq_scaling},
- {},
- };
-
- static void __init ralink_systick_init(struct device_node *np)
- {
- const struct of_device_id *match;
-+ int rating = 200;
-
- systick.membase = of_iomap(np, 0);
- if (!systick.membase)
- return;
-
- match = of_match_node(systick_match, np);
-- if (match)
-+ if (match) {
- systick_freq_scaling = match->data;
-+ /*
-+ * cevt-r4k uses 300, make sure systick
-+ * gets used if available
-+ */
-+ rating = 310;
-+ }
-
-- systick_irqaction.name = np->name;
-- systick.dev.name = np->name;
-- clockevents_calc_mult_shift(&systick.dev, SYSTICK_FREQ, 60);
-- systick.dev.max_delta_ns = clockevent_delta2ns(0x7fff, &systick.dev);
-- systick.dev.min_delta_ns = clockevent_delta2ns(0x3, &systick.dev);
-+ /* enable counter than register clock source */
-+ iowrite32(CFG_CNT_EN, systick.membase + SYSTICK_CONFIG);
-+ clocksource_mmio_init(systick.membase + SYSTICK_COUNT, np->name,
-+ SYSTICK_FREQ, rating, 16, clocksource_mmio_readl_up);
-+
-+ /* register clock event */
- systick.dev.irq = irq_of_parse_and_map(np, 0);
- if (!systick.dev.irq) {
- pr_err("%s: request_irq failed", np->name);
- return;
- }
--
-- clocksource_mmio_init(systick.membase + SYSTICK_COUNT, np->name,
-- SYSTICK_FREQ, 301, 16, clocksource_mmio_readl_up);
--
-- clockevents_register_device(&systick.dev);
--
-+ systick_irqaction.name = np->name;
-+ systick.dev.name = np->name;
-+ systick.dev.rating = rating;
-+ systick.dev.cpumask = cpumask_of(0);
-+ clockevents_config_and_register(&systick.dev, SYSTICK_FREQ, 0x3, 0x7fff);
- pr_info("%s: running - mult: %d, shift: %d\n",
- np->name, systick.dev.mult, systick.dev.shift);
- }