summaryrefslogtreecommitdiffstats
path: root/target/linux/brcm63xx/files-2.6.30/arch/mips/bcm63xx/timer.c
diff options
context:
space:
mode:
authorflorian <florian@3c298f89-4303-0410-b956-a3cf2f4a3e73>2010-03-26 10:12:48 +0000
committerflorian <florian@3c298f89-4303-0410-b956-a3cf2f4a3e73>2010-03-26 10:12:48 +0000
commitb33a0cab3fdfb9471cb0d8ca07a7dbdd373682e0 (patch)
tree33b87be8f06365079d51ef7dbabdf9cc05680a8c /target/linux/brcm63xx/files-2.6.30/arch/mips/bcm63xx/timer.c
parent338ed10277f9bd004541981fd083b3d29a459f4f (diff)
[brcm63xx] drop support for 2.6.30 kernel
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@20438 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'target/linux/brcm63xx/files-2.6.30/arch/mips/bcm63xx/timer.c')
-rw-r--r--target/linux/brcm63xx/files-2.6.30/arch/mips/bcm63xx/timer.c205
1 files changed, 0 insertions, 205 deletions
diff --git a/target/linux/brcm63xx/files-2.6.30/arch/mips/bcm63xx/timer.c b/target/linux/brcm63xx/files-2.6.30/arch/mips/bcm63xx/timer.c
deleted file mode 100644
index ba522bdcd..000000000
--- a/target/linux/brcm63xx/files-2.6.30/arch/mips/bcm63xx/timer.c
+++ /dev/null
@@ -1,205 +0,0 @@
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * Copyright (C) 2008 Maxime Bizon <mbizon@freebox.fr>
- */
-
-#include <linux/kernel.h>
-#include <linux/err.h>
-#include <linux/module.h>
-#include <linux/spinlock.h>
-#include <linux/interrupt.h>
-#include <linux/clk.h>
-#include <bcm63xx_cpu.h>
-#include <bcm63xx_io.h>
-#include <bcm63xx_timer.h>
-#include <bcm63xx_regs.h>
-
-static DEFINE_SPINLOCK(timer_reg_lock);
-static DEFINE_SPINLOCK(timer_data_lock);
-static struct clk *periph_clk;
-
-static struct timer_data {
- void (*cb)(void *);
- void *data;
-} timer_data[BCM63XX_TIMER_COUNT];
-
-static irqreturn_t timer_interrupt(int irq, void *dev_id)
-{
- u32 stat;
- int i;
-
- spin_lock(&timer_reg_lock);
- stat = bcm_timer_readl(TIMER_IRQSTAT_REG);
- bcm_timer_writel(stat, TIMER_IRQSTAT_REG);
- spin_unlock(&timer_reg_lock);
-
- for (i = 0; i < BCM63XX_TIMER_COUNT; i++) {
- if (!(stat & TIMER_IRQSTAT_TIMER_CAUSE(i)))
- continue;
-
- spin_lock(&timer_data_lock);
- if (!timer_data[i].cb) {
- spin_unlock(&timer_data_lock);
- continue;
- }
-
- timer_data[i].cb(timer_data[i].data);
- spin_unlock(&timer_data_lock);
- }
-
- return IRQ_HANDLED;
-}
-
-int bcm63xx_timer_enable(int id)
-{
- u32 reg;
- unsigned long flags;
-
- if (id >= BCM63XX_TIMER_COUNT)
- return -EINVAL;
-
- spin_lock_irqsave(&timer_reg_lock, flags);
-
- reg = bcm_timer_readl(TIMER_CTLx_REG(id));
- reg |= TIMER_CTL_ENABLE_MASK;
- bcm_timer_writel(reg, TIMER_CTLx_REG(id));
-
- reg = bcm_timer_readl(TIMER_IRQSTAT_REG);
- reg |= TIMER_IRQSTAT_TIMER_IR_EN(id);
- bcm_timer_writel(reg, TIMER_IRQSTAT_REG);
-
- spin_unlock_irqrestore(&timer_reg_lock, flags);
- return 0;
-}
-
-EXPORT_SYMBOL(bcm63xx_timer_enable);
-
-int bcm63xx_timer_disable(int id)
-{
- u32 reg;
- unsigned long flags;
-
- if (id >= BCM63XX_TIMER_COUNT)
- return -EINVAL;
-
- spin_lock_irqsave(&timer_reg_lock, flags);
-
- reg = bcm_timer_readl(TIMER_CTLx_REG(id));
- reg &= ~TIMER_CTL_ENABLE_MASK;
- bcm_timer_writel(reg, TIMER_CTLx_REG(id));
-
- reg = bcm_timer_readl(TIMER_IRQSTAT_REG);
- reg &= ~TIMER_IRQSTAT_TIMER_IR_EN(id);
- bcm_timer_writel(reg, TIMER_IRQSTAT_REG);
-
- spin_unlock_irqrestore(&timer_reg_lock, flags);
- return 0;
-}
-
-EXPORT_SYMBOL(bcm63xx_timer_disable);
-
-int bcm63xx_timer_register(int id, void (*callback)(void *data), void *data)
-{
- unsigned long flags;
- int ret;
-
- if (id >= BCM63XX_TIMER_COUNT || !callback)
- return -EINVAL;
-
- ret = 0;
- spin_lock_irqsave(&timer_data_lock, flags);
- if (timer_data[id].cb) {
- ret = -EBUSY;
- goto out;
- }
-
- timer_data[id].cb = callback;
- timer_data[id].data = data;
-
-out:
- spin_unlock_irqrestore(&timer_data_lock, flags);
- return ret;
-}
-
-EXPORT_SYMBOL(bcm63xx_timer_register);
-
-void bcm63xx_timer_unregister(int id)
-{
- unsigned long flags;
-
- if (id >= BCM63XX_TIMER_COUNT)
- return;
-
- spin_lock_irqsave(&timer_data_lock, flags);
- timer_data[id].cb = NULL;
- spin_unlock_irqrestore(&timer_data_lock, flags);
-}
-
-EXPORT_SYMBOL(bcm63xx_timer_unregister);
-
-unsigned int bcm63xx_timer_countdown(unsigned int countdown_us)
-{
- return (clk_get_rate(periph_clk) / (1000 * 1000)) * countdown_us;
-}
-
-EXPORT_SYMBOL(bcm63xx_timer_countdown);
-
-int bcm63xx_timer_set(int id, int monotonic, unsigned int countdown_us)
-{
- u32 reg, countdown;
- unsigned long flags;
-
- if (id >= BCM63XX_TIMER_COUNT)
- return -EINVAL;
-
- countdown = bcm63xx_timer_countdown(countdown_us);
- if (countdown & ~TIMER_CTL_COUNTDOWN_MASK)
- return -EINVAL;
-
- spin_lock_irqsave(&timer_reg_lock, flags);
- reg = bcm_timer_readl(TIMER_CTLx_REG(id));
-
- if (monotonic)
- reg &= ~TIMER_CTL_MONOTONIC_MASK;
- else
- reg |= TIMER_CTL_MONOTONIC_MASK;
-
- reg &= ~TIMER_CTL_COUNTDOWN_MASK;
- reg |= countdown;
- bcm_timer_writel(reg, TIMER_CTLx_REG(id));
-
- spin_unlock_irqrestore(&timer_reg_lock, flags);
- return 0;
-}
-
-EXPORT_SYMBOL(bcm63xx_timer_set);
-
-int bcm63xx_timer_init(void)
-{
- int ret, irq;
- u32 reg;
-
- reg = bcm_timer_readl(TIMER_IRQSTAT_REG);
- reg &= ~TIMER_IRQSTAT_TIMER0_IR_EN;
- reg &= ~TIMER_IRQSTAT_TIMER1_IR_EN;
- reg &= ~TIMER_IRQSTAT_TIMER2_IR_EN;
- bcm_timer_writel(reg, TIMER_IRQSTAT_REG);
-
- periph_clk = clk_get(NULL, "periph");
- if (IS_ERR(periph_clk))
- return -ENODEV;
-
- irq = bcm63xx_get_irq_number(IRQ_TIMER);
- ret = request_irq(irq, timer_interrupt, 0, "bcm63xx_timer", NULL);
- if (ret) {
- printk(KERN_ERR "bcm63xx_timer: failed to register irq\n");
- return ret;
- }
-
- return 0;
-}
-
-arch_initcall(bcm63xx_timer_init);