GK SDK 源码库: XMIPCLinuxV100R005C00SPC030 (kernel/tools/open_source excluded)

source/bootloader/u-boot-2020.01/arch/m68k/cpu/mcf547x_8x/interrupts.c

@@ -0,0 +1,35 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ *
+ * Copyright (C) 2004-2007, 2012 Freescale Semiconductor, Inc.
+ * TsiChung Liew (Tsi-Chung.Liew@freescale.com)
+ */
+
+/* CPU specific interrupt routine */
+#include <common.h>
+#include <irq_func.h>
+#include <asm/immap.h>
+#include <asm/io.h>
+
+int interrupt_init(void)
+{
+	int0_t *intp = (int0_t *) (CONFIG_SYS_INTR_BASE);
+
+	/* Make sure all interrupts are disabled */
+	setbits_be32(&intp->imrh0, 0xffffffff);
+	setbits_be32(&intp->imrl0, 0xffffffff);
+
+	enable_interrupts();
+
+	return 0;
+}
+
+#if defined(CONFIG_SLTTMR)
+void dtimer_intr_setup(void)
+{
+	int0_t *intp = (int0_t *) (CONFIG_SYS_INTR_BASE);
+
+	out_8(&intp->icr0[CONFIG_SYS_TMRINTR_NO], CONFIG_SYS_TMRINTR_PRI);
+	clrbits_be32(&intp->imrh0, CONFIG_SYS_TMRINTR_MASK);
+}
+#endif