FreeCalypso > hg > freecalypso-sw
annotate gsm-fw/lldbg/entry.S @ 962:f4da3071dd61
doc/High-speed-serial write-up and Linux kernel patch added
author | Mychaela Falconia <falcon@ivan.Harhan.ORG> |
---|---|
date | Fri, 06 Nov 2015 21:46:05 +0000 |
parents | f5affe83ba2d |
children |
rev | line source |
---|---|
865
f5affe83ba2d
lldbg hack (poor girl's substitute for JTAG) implemented
Space Falcon <falcon@ivan.Harhan.ORG>
parents:
diff
changeset
|
1 .section "ext.ram","aw",%nobits |
f5affe83ba2d
lldbg hack (poor girl's substitute for JTAG) implemented
Space Falcon <falcon@ivan.Harhan.ORG>
parents:
diff
changeset
|
2 .balign 4 |
f5affe83ba2d
lldbg hack (poor girl's substitute for JTAG) implemented
Space Falcon <falcon@ivan.Harhan.ORG>
parents:
diff
changeset
|
3 .globl lldbg_stack |
f5affe83ba2d
lldbg hack (poor girl's substitute for JTAG) implemented
Space Falcon <falcon@ivan.Harhan.ORG>
parents:
diff
changeset
|
4 lldbg_stack: |
f5affe83ba2d
lldbg hack (poor girl's substitute for JTAG) implemented
Space Falcon <falcon@ivan.Harhan.ORG>
parents:
diff
changeset
|
5 .space 2048 |
f5affe83ba2d
lldbg hack (poor girl's substitute for JTAG) implemented
Space Falcon <falcon@ivan.Harhan.ORG>
parents:
diff
changeset
|
6 lldbg_init_sp: |
f5affe83ba2d
lldbg hack (poor girl's substitute for JTAG) implemented
Space Falcon <falcon@ivan.Harhan.ORG>
parents:
diff
changeset
|
7 |
f5affe83ba2d
lldbg hack (poor girl's substitute for JTAG) implemented
Space Falcon <falcon@ivan.Harhan.ORG>
parents:
diff
changeset
|
8 .text |
f5affe83ba2d
lldbg hack (poor girl's substitute for JTAG) implemented
Space Falcon <falcon@ivan.Harhan.ORG>
parents:
diff
changeset
|
9 .code 32 |
f5affe83ba2d
lldbg hack (poor girl's substitute for JTAG) implemented
Space Falcon <falcon@ivan.Harhan.ORG>
parents:
diff
changeset
|
10 .globl lldbg_entry |
f5affe83ba2d
lldbg hack (poor girl's substitute for JTAG) implemented
Space Falcon <falcon@ivan.Harhan.ORG>
parents:
diff
changeset
|
11 lldbg_entry: |
f5affe83ba2d
lldbg hack (poor girl's substitute for JTAG) implemented
Space Falcon <falcon@ivan.Harhan.ORG>
parents:
diff
changeset
|
12 stmfd sp!, {r0-r12,lr} |
f5affe83ba2d
lldbg hack (poor girl's substitute for JTAG) implemented
Space Falcon <falcon@ivan.Harhan.ORG>
parents:
diff
changeset
|
13 mrs r0, CPSR |
f5affe83ba2d
lldbg hack (poor girl's substitute for JTAG) implemented
Space Falcon <falcon@ivan.Harhan.ORG>
parents:
diff
changeset
|
14 mov r1, sp |
f5affe83ba2d
lldbg hack (poor girl's substitute for JTAG) implemented
Space Falcon <falcon@ivan.Harhan.ORG>
parents:
diff
changeset
|
15 /* supervisor mode, disable all interrupts */ |
f5affe83ba2d
lldbg hack (poor girl's substitute for JTAG) implemented
Space Falcon <falcon@ivan.Harhan.ORG>
parents:
diff
changeset
|
16 msr CPSR_c, #0xd3 |
f5affe83ba2d
lldbg hack (poor girl's substitute for JTAG) implemented
Space Falcon <falcon@ivan.Harhan.ORG>
parents:
diff
changeset
|
17 ldr sp, =lldbg_init_sp |
f5affe83ba2d
lldbg hack (poor girl's substitute for JTAG) implemented
Space Falcon <falcon@ivan.Harhan.ORG>
parents:
diff
changeset
|
18 /* save entry SP and CPSR */ |
f5affe83ba2d
lldbg hack (poor girl's substitute for JTAG) implemented
Space Falcon <falcon@ivan.Harhan.ORG>
parents:
diff
changeset
|
19 ldr r2, =lldbg_entry_cpsr |
f5affe83ba2d
lldbg hack (poor girl's substitute for JTAG) implemented
Space Falcon <falcon@ivan.Harhan.ORG>
parents:
diff
changeset
|
20 str r0, [r2] |
f5affe83ba2d
lldbg hack (poor girl's substitute for JTAG) implemented
Space Falcon <falcon@ivan.Harhan.ORG>
parents:
diff
changeset
|
21 ldr r2, =lldbg_entry_sp |
f5affe83ba2d
lldbg hack (poor girl's substitute for JTAG) implemented
Space Falcon <falcon@ivan.Harhan.ORG>
parents:
diff
changeset
|
22 str r1, [r2] |
f5affe83ba2d
lldbg hack (poor girl's substitute for JTAG) implemented
Space Falcon <falcon@ivan.Harhan.ORG>
parents:
diff
changeset
|
23 b lldbg_main |