FreeCalypso > hg > fc-magnetite

annotate fcdev3b-hacks/src/romvecs-insert.S @ 680:ee3ac8c617cb

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
armio.c: set GPIO2 output high initially On TI-canonical platforms GPIO2 is DCD modem control output. In TI's original code the AI_InitIOConfig() function called from Init_Target() would configure GPIO2 as an output and set the initial output value to low, but then the init code in uartfax.c called from Init_Serial_Flows() would immediately change it to high, corresponding to DCD not asserted. The result is a momentary asserted-state glitch on the DCD output. The present change eliminates this glitch, setting DCD output to not-asserted initially like it should be.
author Mychaela Falconia <falcon@freecalypso.org>
date Thu, 25 Jun 2020 03:17:43 +0000
parents 8d9298e0823a
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
467
3285960cc1b9 romvecs-patch: experimental insert code written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1 .text
3285960cc1b9 romvecs-patch: experimental insert code written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2 .code 32
3285960cc1b9 romvecs-patch: experimental insert code written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
3 .globl _entry
3285960cc1b9 romvecs-patch: experimental insert code written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
4
3285960cc1b9 romvecs-patch: experimental insert code written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
5 _entry: adr r0, vectors
3285960cc1b9 romvecs-patch: experimental insert code written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
6 ldmia r0, {r1-r7}
3285960cc1b9 romvecs-patch: experimental insert code written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
7 mov r0, #0x800000
3285960cc1b9 romvecs-patch: experimental insert code written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
8 stmia r0, {r1-r7}
3285960cc1b9 romvecs-patch: experimental insert code written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
9 ldr pc, jumpaddr
3285960cc1b9 romvecs-patch: experimental insert code written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
10
3285960cc1b9 romvecs-patch: experimental insert code written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
11 vectors:
3285960cc1b9 romvecs-patch: experimental insert code written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
12 .word 0x4000
3285960cc1b9 romvecs-patch: experimental insert code written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
13 .word 0x4004
3285960cc1b9 romvecs-patch: experimental insert code written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
14 .word 0x4008
3285960cc1b9 romvecs-patch: experimental insert code written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
15 .word 0x400C
3285960cc1b9 romvecs-patch: experimental insert code written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
16 .word 0x4010
3285960cc1b9 romvecs-patch: experimental insert code written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
17 .word 0x4014
3285960cc1b9 romvecs-patch: experimental insert code written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
18 .word 0x4018
3285960cc1b9 romvecs-patch: experimental insert code written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
19 jumpaddr:
3285960cc1b9 romvecs-patch: experimental insert code written
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
20 .word 0x4058