[Blackfin][PATCH] Add BF561 EZKIT board support
diff --git a/cpu/bf561/interrupt.S b/cpu/bf561/interrupt.S
new file mode 100644
index 0000000..f82fd9b
--- /dev/null
+++ b/cpu/bf561/interrupt.S
@@ -0,0 +1,246 @@
+/*
+ * U-boot - interrupt.S Processing of interrupts and exception handling
+ *
+ * Copyright (c) 2005 blackfin.uclinux.org
+ *
+ * (C) Copyright 2000-2004
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * This file is based on interrupt.S
+ *
+ * Copyright (C) 2003 Metrowerks, Inc. <mwaddel@metrowerks.com>
+ * Copyright (C) 2002 Arcturus Networks Ltd. Ted Ma <mated@sympatico.ca>
+ * Copyright (C) 1998 D. Jeff Dionne <jeff@ryeham.ee.ryerson.ca>,
+ * Kenneth Albanowski <kjahds@kjahds.com>,
+ * The Silver Hammer Group, Ltd.
+ *
+ * (c) 1995, Dionne & Associates
+ * (c) 1995, DKG Display Tech.
+ *
+ * This file is also based on exception.asm
+ * (C) Copyright 2001-2005 - Analog Devices, Inc. All rights reserved.
+ *
+ * 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
+ */
+
+#define ASSEMBLY
+#include <config.h>
+#include <asm/blackfin.h>
+#include <asm/hw_irq.h>
+#include <asm/entry.h>
+#include <asm/blackfin_defs.h>
+
+.global _blackfin_irq_panic;
+
+.text
+.align 2
+
+#ifndef CONFIG_KGDB
+.global _evt_emulation
+_evt_emulation:
+ SAVE_CONTEXT
+ r0 = IRQ_EMU;
+ r1 = seqstat;
+ sp += -12;
+ call _blackfin_irq_panic;
+ sp += 12;
+ rte;
+#endif
+
+.global _evt_nmi
+_evt_nmi:
+ SAVE_CONTEXT
+ r0 = IRQ_NMI;
+ r1 = RETN;
+ sp += -12;
+ call _blackfin_irq_panic;
+ sp += 12;
+
+_evt_nmi_exit:
+ rtn;
+
+.global _trap
+_trap:
+ SAVE_ALL_SYS
+ r0 = sp; /* stack frame pt_regs pointer argument ==> r0 */
+ sp += -12;
+ call _trap_c
+ sp += 12;
+ RESTORE_ALL_SYS
+ rtx;
+
+.global _evt_rst
+_evt_rst:
+ SAVE_CONTEXT
+ r0 = IRQ_RST;
+ r1 = RETN;
+ sp += -12;
+ call _do_reset;
+ sp += 12;
+
+_evt_rst_exit:
+ rtn;
+
+irq_panic:
+ r0 = IRQ_EVX;
+ r1 = sp;
+ sp += -12;
+ call _blackfin_irq_panic;
+ sp += 12;
+
+.global _evt_ivhw
+_evt_ivhw:
+ SAVE_CONTEXT
+ RAISE 14;
+
+_evt_ivhw_exit:
+ rti;
+
+.global _evt_timer
+_evt_timer:
+ SAVE_CONTEXT
+ r0 = IRQ_CORETMR;
+ sp += -12;
+ /* Polling method used now. */
+ /* call timer_int; */
+ sp += 12;
+ RESTORE_CONTEXT
+ rti;
+ nop;
+
+.global _evt_evt7
+_evt_evt7:
+ SAVE_CONTEXT
+ r0 = 7;
+ sp += -12;
+ call _process_int;
+ sp += 12;
+
+evt_evt7_exit:
+ RESTORE_CONTEXT
+ rti;
+
+.global _evt_evt8
+_evt_evt8:
+ SAVE_CONTEXT
+ r0 = 8;
+ sp += -12;
+ call _process_int;
+ sp += 12;
+
+evt_evt8_exit:
+ RESTORE_CONTEXT
+ rti;
+
+.global _evt_evt9
+_evt_evt9:
+ SAVE_CONTEXT
+ r0 = 9;
+ sp += -12;
+ call _process_int;
+ sp += 12;
+
+evt_evt9_exit:
+ RESTORE_CONTEXT
+ rti;
+
+.global _evt_evt10
+_evt_evt10:
+ SAVE_CONTEXT
+ r0 = 10;
+ sp += -12;
+ call _process_int;
+ sp += 12;
+
+evt_evt10_exit:
+ RESTORE_CONTEXT
+ rti;
+
+.global _evt_evt11
+_evt_evt11:
+ SAVE_CONTEXT
+ r0 = 11;
+ sp += -12;
+ call _process_int;
+ sp += 12;
+
+evt_evt11_exit:
+ RESTORE_CONTEXT
+ rti;
+
+.global _evt_evt12
+_evt_evt12:
+ SAVE_CONTEXT
+ r0 = 12;
+ sp += -12;
+ call _process_int;
+ sp += 12;
+evt_evt12_exit:
+ RESTORE_CONTEXT
+ rti;
+
+.global _evt_evt13
+_evt_evt13:
+ SAVE_CONTEXT
+ r0 = 13;
+ sp += -12;
+ call _process_int;
+ sp += 12;
+
+evt_evt13_exit:
+ RESTORE_CONTEXT
+ rti;
+
+.global _evt_system_call
+_evt_system_call:
+ [--sp] = r0;
+ [--SP] = RETI;
+ r0 = [sp++];
+ r0 += 2;
+ [--sp] = r0;
+ RETI = [SP++];
+ r0 = [SP++];
+ SAVE_CONTEXT
+ sp += -12;
+ call _exception_handle;
+ sp += 12;
+ RESTORE_CONTEXT
+ RTI;
+
+evt_system_call_exit:
+ rti;
+
+.global _evt_soft_int1
+_evt_soft_int1:
+ [--sp] = r0;
+ [--SP] = RETI;
+ r0 = [sp++];
+ r0 += 2;
+ [--sp] = r0;
+ RETI = [SP++];
+ r0 = [SP++];
+ SAVE_CONTEXT
+ sp += -12;
+ call _exception_handle;
+ sp += 12;
+ RESTORE_CONTEXT
+ RTI;
+
+evt_soft_int1_exit:
+ rti;