[brcm63xx] move files to files-2.6.30, to ease newer kernel integration

[openwrt/svn-archive/archive.git] / target / linux / brcm63xx / files / arch / mips / bcm63xx / timer.c

diff --git a/target/linux/brcm63xx/files/arch/mips/bcm63xx/timer.c b/target/linux/brcm63xx/files/arch/mips/bcm63xx/timer.c
deleted file mode 100644 (file)
index ba522bd..0000000
--- a/target/linux/brcm63xx/files/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);