35 lines
584 B
C
35 lines
584 B
C
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#include <sunxi_hal_common.h>
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#include <hal_hwspinlock.h>
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#include <hal_clk.h>
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#include "hwspinlock.h"
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void hal_hwspinlock_init(void)
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{
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/*
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* the clk and gate should init in kernel
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*/
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/* hal_clock_enable(HAL_CLK_PERIPH_SPINLOCK); */
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}
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int hal_hwspinlock_check_taken(int num)
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{
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return !!(readl(SPINLOCK_STATUS_REG) & (1 << num));
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}
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void hal_hwspinlock_get(int num)
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{
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unsigned long addr = SPINLOCK_LOCK_REG(num);
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while (readl(addr) != 0);
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}
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void hal_hwspinlock_put(int num)
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{
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unsigned long addr = SPINLOCK_LOCK_REG(num);
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writel(0, addr);
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}
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