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Diffstat (limited to 'arch/m68k/cpu/mcf52x2/interrupts.c')
-rw-r--r--arch/m68k/cpu/mcf52x2/interrupts.c107
1 files changed, 107 insertions, 0 deletions
diff --git a/arch/m68k/cpu/mcf52x2/interrupts.c b/arch/m68k/cpu/mcf52x2/interrupts.c
new file mode 100644
index 0000000..dff8c6a
--- /dev/null
+++ b/arch/m68k/cpu/mcf52x2/interrupts.c
@@ -0,0 +1,107 @@
+/*
+ * (C) Copyright 2000-2004
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * Copyright (C) 2004-2007 Freescale Semiconductor, Inc.
+ * TsiChung Liew (Tsi-Chung.Liew@freescale.com)
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <watchdog.h>
+#include <asm/processor.h>
+#include <asm/immap.h>
+
+#ifdef CONFIG_M5272
+int interrupt_init(void)
+{
+ volatile intctrl_t *intp = (intctrl_t *) (MMAP_INTC);
+
+ /* disable all external interrupts */
+ intp->int_icr1 = 0x88888888;
+ intp->int_icr2 = 0x88888888;
+ intp->int_icr3 = 0x88888888;
+ intp->int_icr4 = 0x88888888;
+ intp->int_pitr = 0x00000000;
+ /* initialize vector register */
+ intp->int_pivr = 0x40;
+
+ enable_interrupts();
+
+ return 0;
+}
+
+#if defined(CONFIG_MCFTMR)
+void dtimer_intr_setup(void)
+{
+ volatile intctrl_t *intp = (intctrl_t *) (CONFIG_SYS_INTR_BASE);
+
+ intp->int_icr1 &= ~INT_ICR1_TMR3MASK;
+ intp->int_icr1 |= CONFIG_SYS_TMRINTR_PRI;
+}
+#endif /* CONFIG_MCFTMR */
+#endif /* CONFIG_M5272 */
+
+#if defined(CONFIG_M5208) || defined(CONFIG_M5282) || \
+ defined(CONFIG_M5271) || defined(CONFIG_M5275)
+int interrupt_init(void)
+{
+ volatile int0_t *intp = (int0_t *) (CONFIG_SYS_INTR_BASE);
+
+ /* Make sure all interrupts are disabled */
+#if defined(CONFIG_M5208)
+ intp->imrl0 = 0xFFFFFFFF;
+ intp->imrh0 = 0xFFFFFFFF;
+#else
+ intp->imrl0 |= 0x1;
+#endif
+
+ enable_interrupts();
+ return 0;
+}
+
+#if defined(CONFIG_MCFTMR)
+void dtimer_intr_setup(void)
+{
+ volatile int0_t *intp = (int0_t *) (CONFIG_SYS_INTR_BASE);
+
+ intp->icr0[CONFIG_SYS_TMRINTR_NO] = CONFIG_SYS_TMRINTR_PRI;
+ intp->imrl0 &= 0xFFFFFFFE;
+ intp->imrl0 &= ~CONFIG_SYS_TMRINTR_MASK;
+}
+#endif /* CONFIG_MCFTMR */
+#endif /* CONFIG_M5282 | CONFIG_M5271 | CONFIG_M5275 */
+
+#if defined(CONFIG_M5249) || defined(CONFIG_M5253)
+int interrupt_init(void)
+{
+ enable_interrupts();
+
+ return 0;
+}
+
+#if defined(CONFIG_MCFTMR)
+void dtimer_intr_setup(void)
+{
+ mbar_writeLong(MCFSIM_IMR, mbar_readLong(MCFSIM_IMR) & ~0x00000400);
+ mbar_writeByte(MCFSIM_TIMER2ICR, CONFIG_SYS_TMRINTR_PRI);
+}
+#endif /* CONFIG_MCFTMR */
+#endif /* CONFIG_M5249 || CONFIG_M5253 */