diff options
Diffstat (limited to 'ANDROID_3.4.5/arch/arm/mach-sa1100/clock.c')
-rw-r--r-- | ANDROID_3.4.5/arch/arm/mach-sa1100/clock.c | 100 |
1 files changed, 0 insertions, 100 deletions
diff --git a/ANDROID_3.4.5/arch/arm/mach-sa1100/clock.c b/ANDROID_3.4.5/arch/arm/mach-sa1100/clock.c deleted file mode 100644 index 172ebd0e..00000000 --- a/ANDROID_3.4.5/arch/arm/mach-sa1100/clock.c +++ /dev/null @@ -1,100 +0,0 @@ -/* - * linux/arch/arm/mach-sa1100/clock.c - */ -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/device.h> -#include <linux/list.h> -#include <linux/errno.h> -#include <linux/err.h> -#include <linux/string.h> -#include <linux/clk.h> -#include <linux/spinlock.h> -#include <linux/mutex.h> -#include <linux/io.h> -#include <linux/clkdev.h> - -#include <mach/hardware.h> - -struct clkops { - void (*enable)(struct clk *); - void (*disable)(struct clk *); -}; - -struct clk { - const struct clkops *ops; - unsigned int enabled; -}; - -#define DEFINE_CLK(_name, _ops) \ -struct clk clk_##_name = { \ - .ops = _ops, \ - } - -static DEFINE_SPINLOCK(clocks_lock); - -static void clk_gpio27_enable(struct clk *clk) -{ - /* - * First, set up the 3.6864MHz clock on GPIO 27 for the SA-1111: - * (SA-1110 Developer's Manual, section 9.1.2.1) - */ - GAFR |= GPIO_32_768kHz; - GPDR |= GPIO_32_768kHz; - TUCR = TUCR_3_6864MHz; -} - -static void clk_gpio27_disable(struct clk *clk) -{ - TUCR = 0; - GPDR &= ~GPIO_32_768kHz; - GAFR &= ~GPIO_32_768kHz; -} - -int clk_enable(struct clk *clk) -{ - unsigned long flags; - - if (clk) { - spin_lock_irqsave(&clocks_lock, flags); - if (clk->enabled++ == 0) - clk->ops->enable(clk); - spin_unlock_irqrestore(&clocks_lock, flags); - } - - return 0; -} -EXPORT_SYMBOL(clk_enable); - -void clk_disable(struct clk *clk) -{ - unsigned long flags; - - if (clk) { - WARN_ON(clk->enabled == 0); - spin_lock_irqsave(&clocks_lock, flags); - if (--clk->enabled == 0) - clk->ops->disable(clk); - spin_unlock_irqrestore(&clocks_lock, flags); - } -} -EXPORT_SYMBOL(clk_disable); - -const struct clkops clk_gpio27_ops = { - .enable = clk_gpio27_enable, - .disable = clk_gpio27_disable, -}; - -static DEFINE_CLK(gpio27, &clk_gpio27_ops); - -static struct clk_lookup sa11xx_clkregs[] = { - CLKDEV_INIT("sa1111.0", NULL, &clk_gpio27), - CLKDEV_INIT("sa1100-rtc", NULL, NULL), -}; - -static int __init sa11xx_clk_init(void) -{ - clkdev_add_table(sa11xx_clkregs, ARRAY_SIZE(sa11xx_clkregs)); - return 0; -} -core_initcall(sa11xx_clk_init); |