ASR_BASE
Change-Id: Icf3719cc0afe3eeb3edc7fa80a2eb5199ca9dda1
diff --git a/marvell/uboot/arch/powerpc/lib/interrupts.c b/marvell/uboot/arch/powerpc/lib/interrupts.c
new file mode 100644
index 0000000..f7cf915
--- /dev/null
+++ b/marvell/uboot/arch/powerpc/lib/interrupts.c
@@ -0,0 +1,127 @@
+/*
+ * (C) Copyright 2000-2002
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * (C) Copyright 2003
+ * Gleb Natapov <gnatapov@mrv.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/processor.h>
+#include <watchdog.h>
+#ifdef CONFIG_STATUS_LED
+#include <status_led.h>
+#endif
+
+#ifdef CONFIG_SHOW_ACTIVITY
+void board_show_activity (ulong) __attribute__((weak, alias("__board_show_activity")));
+
+void __board_show_activity (ulong dummy)
+{
+ return;
+}
+#endif /* CONFIG_SHOW_ACTIVITY */
+
+#ifndef CONFIG_SYS_WATCHDOG_FREQ
+#define CONFIG_SYS_WATCHDOG_FREQ (CONFIG_SYS_HZ / 2)
+#endif
+
+extern int interrupt_init_cpu (unsigned *);
+extern void timer_interrupt_cpu (struct pt_regs *);
+
+static unsigned decrementer_count; /* count value for 1e6/HZ microseconds */
+
+static __inline__ unsigned long get_msr (void)
+{
+ unsigned long msr;
+
+ asm volatile ("mfmsr %0":"=r" (msr):);
+
+ return msr;
+}
+
+static __inline__ void set_msr (unsigned long msr)
+{
+ asm volatile ("mtmsr %0"::"r" (msr));
+}
+
+static __inline__ unsigned long get_dec (void)
+{
+ unsigned long val;
+
+ asm volatile ("mfdec %0":"=r" (val):);
+
+ return val;
+}
+
+
+static __inline__ void set_dec (unsigned long val)
+{
+ if (val)
+ asm volatile ("mtdec %0"::"r" (val));
+}
+
+
+void enable_interrupts (void)
+{
+ set_msr (get_msr () | MSR_EE);
+}
+
+/* returns flag if MSR_EE was set before */
+int disable_interrupts (void)
+{
+ ulong msr = get_msr ();
+
+ set_msr (msr & ~MSR_EE);
+ return ((msr & MSR_EE) != 0);
+}
+
+int interrupt_init (void)
+{
+ int ret;
+
+ /* call cpu specific function from $(CPU)/interrupts.c */
+ ret = interrupt_init_cpu (&decrementer_count);
+
+ if (ret)
+ return ret;
+
+ set_dec (decrementer_count);
+
+ set_msr (get_msr () | MSR_EE);
+
+ return (0);
+}
+
+static volatile ulong timestamp = 0;
+
+void timer_interrupt (struct pt_regs *regs)
+{
+ /* call cpu specific function from $(CPU)/interrupts.c */
+ timer_interrupt_cpu (regs);
+
+ /* Restore Decrementer Count */
+ set_dec (decrementer_count);
+
+ timestamp++;
+
+#if defined(CONFIG_WATCHDOG) || defined (CONFIG_HW_WATCHDOG)
+ if ((timestamp % (CONFIG_SYS_WATCHDOG_FREQ)) == 0)
+ WATCHDOG_RESET ();
+#endif /* CONFIG_WATCHDOG || CONFIG_HW_WATCHDOG */
+
+#ifdef CONFIG_STATUS_LED
+ status_led_tick (timestamp);
+#endif /* CONFIG_STATUS_LED */
+
+#ifdef CONFIG_SHOW_ACTIVITY
+ board_show_activity (timestamp);
+#endif /* CONFIG_SHOW_ACTIVITY */
+}
+
+ulong get_timer (ulong base)
+{
+ return (timestamp - base);
+}