summaryrefslogtreecommitdiff
path: root/cpu/bf533/interrupt.S
diff options
context:
space:
mode:
authorMarkus Klotzbuecher <mk@denx.de>2006-03-24 15:43:16 +0100
committerMarkus Klotzbücher <mk@pollux.denx.de>2006-03-24 15:43:16 +0100
commit2770bcb21c82835a5351176e5b2a9221d7fc8ef9 (patch)
tree78edf9afc584e1a76d219bd64d260224a84f0d10 /cpu/bf533/interrupt.S
parent0b953ffc653fc5ab3d3fa47abf0dd9b8bd0703f5 (diff)
parent05d8dce9d07cf4073ea15fbc448c1ce22b6baf0f (diff)
downloadu-boot-imx-2770bcb21c82835a5351176e5b2a9221d7fc8ef9.zip
u-boot-imx-2770bcb21c82835a5351176e5b2a9221d7fc8ef9.tar.gz
u-boot-imx-2770bcb21c82835a5351176e5b2a9221d7fc8ef9.tar.bz2
Merge with http://www.denx.de/git/u-boot.git
Diffstat (limited to 'cpu/bf533/interrupt.S')
-rw-r--r--cpu/bf533/interrupt.S391
1 files changed, 391 insertions, 0 deletions
diff --git a/cpu/bf533/interrupt.S b/cpu/bf533/interrupt.S
new file mode 100644
index 0000000..e780dc6
--- /dev/null
+++ b/cpu/bf533/interrupt.S
@@ -0,0 +1,391 @@
+/*
+ * 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 <asm/hw_irq.h>
+#include <asm/entry.h>
+#include <asm/blackfin_defs.h>
+#include <asm/cpu/bf533_irq.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:
+ [--sp] = r0;
+ [--sp] = r1;
+ [--sp] = p0;
+ [--sp] = p1;
+ [--sp] = astat;
+ r0 = seqstat;
+ R0 <<= 26;
+ R0 >>= 26;
+ p0 = r0;
+ p1.l = EVTABLE;
+ p1.h = EVTABLE;
+ p0 = p1 + (p0 << 1);
+ r1 = W[p0] (Z);
+ p1 = r1;
+ jump (pc + p1);
+
+.global _EVENT1
+_EVENT1:
+ RAISE 14;
+ JUMP.S _EXIT;
+
+.global _EVENT2
+_EVENT2:
+ RAISE 14;
+ JUMP.S _EXIT;
+
+.global _EVENT3
+_EVENT3:
+ RAISE 14;
+ JUMP.S _EXIT;
+
+.global _EVENT4
+_EVENT4:
+ RAISE 14;
+ JUMP.S _EXIT;
+
+.global _EVENT5
+_EVENT5:
+ RAISE 14;
+ JUMP.S _EXIT;
+
+.global _EVENT6
+_EVENT6:
+ RAISE 14;
+ JUMP.S _EXIT;
+
+.global _EVENT7
+_EVENT7:
+ RAISE 15;
+ JUMP.S _EXIT;
+
+.global _EVENT8
+_EVENT8:
+ RAISE 14;
+ JUMP.S _EXIT;
+
+.global _EVENT9
+_EVENT9:
+ RAISE 14;
+ JUMP.S _EXIT;
+
+.global _EVENT10
+_EVENT10:
+ RAISE 14;
+ JUMP.S _EXIT;
+
+.global _EVENT11
+_EVENT11:
+ RAISE 14;
+ JUMP.S _EXIT;
+
+.global _EVENT12
+_EVENT12:
+ RAISE 14;
+ JUMP.S _EXIT;
+
+.global _EVENT13
+_EVENT13:
+ RAISE 14;
+ JUMP.S _EXIT;
+
+.global _EVENT14
+_EVENT14:
+/* RAISE 14; */
+ CALL _cplb_hdr;
+ JUMP.S _EXIT;
+
+.global _EVENT19
+_EVENT19:
+ RAISE 14;
+ JUMP.S _EXIT;
+
+.global _EVENT20
+_EVENT20:
+ RAISE 14;
+ JUMP.S _EXIT;
+
+.global _EVENT21
+_EVENT21:
+ RAISE 14;
+ JUMP.S _EXIT;
+
+.global _EXIT
+_EXIT:
+ ASTAT = [sp++];
+ p1 = [sp++];
+ p0 = [sp++];
+ r1 = [sp++];
+ r0 = [sp++];
+ RTX;
+
+EVTABLE:
+ .byte2 0x0000;
+ .byte2 0x0000;
+ .byte2 0x0000;
+ .byte2 0x0000;
+ .byte2 0x0000;
+ .byte2 0x0000;
+ .byte2 0x0000;
+ .byte2 0x0000;
+ .byte2 0x0000;
+ .byte2 0x0000;
+ .byte2 0x0000;
+ .byte2 0x0000;
+ .byte2 0x0000;
+ .byte2 0x0000;
+ .byte2 0x0000;
+ .byte2 0x0000;
+ .byte2 0x003E;
+ .byte2 0x0042;
+ .byte4 0x0000;
+ .byte4 0x0000;
+ .byte4 0x0000;
+ .byte4 0x0000;
+ .byte4 0x0000;
+ .byte4 0x0000;
+ .byte4 0x0000;
+ .byte2 0x0000;
+ .byte2 0x001E;
+ .byte2 0x0022;
+ .byte2 0x0032;
+ .byte2 0x002e;
+ .byte2 0x0002;
+ .byte2 0x0036;
+ .byte2 0x002A;
+ .byte2 0x001A;
+ .byte2 0x0016;
+ .byte2 0x000A;
+ .byte2 0x000E;
+ .byte2 0x0012;
+ .byte2 0x0006;
+ .byte2 0x0026;
+
+.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 display_excp;
+ 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 display_excp;
+ sp += 12;
+ RESTORE_CONTEXT
+ RTI;
+
+evt_soft_int1_exit:
+ rti;