/*
* U-boot - interrupt.S Processing of interrupts and exception handling
*
- * Copyright (c) 2005 blackfin.uclinux.org
+ * Copyright (c) 2005-2007 Analog Devices Inc.
*
* (C) Copyright 2000-2004
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*
* 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
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
+ * MA 02110-1301 USA
*/
#define ASSEMBLY
-
+#include <config.h>
+#include <asm/blackfin.h>
#include <asm/hw_irq.h>
#include <asm/entry.h>
#include <asm/blackfin_defs.h>
-#include <asm/cpu/bf533_irq.h>
-.global blackfin_irq_panic;
+.global _blackfin_irq_panic;
.text
.align 2
#ifndef CONFIG_KGDB
-.global evt_emulation
-evt_emulation:
+.global _evt_emulation
+_evt_emulation:
SAVE_CONTEXT
r0 = IRQ_EMU;
r1 = seqstat;
sp += -12;
- call blackfin_irq_panic;
+ call _blackfin_irq_panic;
sp += 12;
rte;
#endif
-.global evt_nmi
-evt_nmi:
+.global _evt_nmi
+_evt_nmi:
SAVE_CONTEXT
r0 = IRQ_NMI;
r1 = RETN;
sp += -12;
- call blackfin_irq_panic;
+ 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 _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:
+.global _evt_rst
+_evt_rst:
SAVE_CONTEXT
r0 = IRQ_RST;
r1 = RETN;
sp += -12;
- call do_reset;
+ call _do_reset;
sp += 12;
_evt_rst_exit:
r0 = IRQ_EVX;
r1 = sp;
sp += -12;
- call blackfin_irq_panic;
+ call _blackfin_irq_panic;
sp += 12;
-.global evt_ivhw
-evt_ivhw:
+.global _evt_ivhw
+_evt_ivhw:
SAVE_CONTEXT
RAISE 14;
_evt_ivhw_exit:
rti;
-.global evt_timer
-evt_timer:
+.global _evt_timer
+_evt_timer:
SAVE_CONTEXT
r0 = IRQ_CORETMR;
sp += -12;
rti;
nop;
-.global evt_evt7
-evt_evt7:
+.global _evt_evt7
+_evt_evt7:
SAVE_CONTEXT
r0 = 7;
sp += -12;
- call process_int;
+ call _process_int;
sp += 12;
evt_evt7_exit:
RESTORE_CONTEXT
rti;
-.global evt_evt8
-evt_evt8:
+.global _evt_evt8
+_evt_evt8:
SAVE_CONTEXT
r0 = 8;
sp += -12;
- call process_int;
+ call _process_int;
sp += 12;
evt_evt8_exit:
RESTORE_CONTEXT
rti;
-.global evt_evt9
-evt_evt9:
+.global _evt_evt9
+_evt_evt9:
SAVE_CONTEXT
r0 = 9;
sp += -12;
- call process_int;
+ call _process_int;
sp += 12;
evt_evt9_exit:
RESTORE_CONTEXT
rti;
-.global evt_evt10
-evt_evt10:
+.global _evt_evt10
+_evt_evt10:
SAVE_CONTEXT
r0 = 10;
sp += -12;
- call process_int;
+ call _process_int;
sp += 12;
evt_evt10_exit:
RESTORE_CONTEXT
rti;
-.global evt_evt11
-evt_evt11:
+.global _evt_evt11
+_evt_evt11:
SAVE_CONTEXT
r0 = 11;
sp += -12;
- call process_int;
+ call _process_int;
sp += 12;
evt_evt11_exit:
RESTORE_CONTEXT
rti;
-.global evt_evt12
-evt_evt12:
+.global _evt_evt12
+_evt_evt12:
SAVE_CONTEXT
r0 = 12;
sp += -12;
- call process_int;
+ call _process_int;
sp += 12;
evt_evt12_exit:
RESTORE_CONTEXT
rti;
-.global evt_evt13
-evt_evt13:
+.global _evt_evt13
+_evt_evt13:
SAVE_CONTEXT
r0 = 13;
sp += -12;
- call process_int;
+ call _process_int;
sp += 12;
evt_evt13_exit:
RESTORE_CONTEXT
rti;
-.global evt_system_call
-evt_system_call:
+.global _evt_system_call
+_evt_system_call:
[--sp] = r0;
[--SP] = RETI;
r0 = [sp++];
r0 = [SP++];
SAVE_CONTEXT
sp += -12;
- call display_excp;
+ call _exception_handle;
sp += 12;
RESTORE_CONTEXT
RTI;
evt_system_call_exit:
rti;
-.global evt_soft_int1
-evt_soft_int1:
+.global _evt_soft_int1
+_evt_soft_int1:
[--sp] = r0;
[--SP] = RETI;
r0 = [sp++];
r0 = [SP++];
SAVE_CONTEXT
sp += -12;
- call display_excp;
+ call _exception_handle;
sp += 12;
RESTORE_CONTEXT
RTI;
projects / karo-tx-uboot.git / blobdiff