FreeCalypso > hg > freecalypso-citrine

comparison sysglue/sysinit.S @ 0:75a11d740a02

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initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
author Mychaela Falconia <falcon@freecalypso.org>
date Thu, 09 Jun 2016 00:02:41 +0000
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1 /*
2 * This assembly module, which puts bits of code into several different
3 * sections, contains those essential entry point etc bits which are common
4 * to both the regular flashable build and the fc-xram development build.
5 */
6
7 .section iram.vectors,"ax",%progbits
8 .code 32
9 #include "vectors.S"
10
11 .section xip.text,"ax",%progbits
12 .code 32
13 .globl _FlashorXram_entry
14 _FlashorXram_entry:
15 /* enable Calypso boot ROM for the ARM exception and IRQ/FIQ vectors */
16 ldr r1, =0xFFFFFB10
17 mov r2, #0x0100
18 strh r2, [r1]
19 /* now we can call any function w/o worry as to where it lives */
20 /* clear int.bss and ext.bss, using bzero() from libc */
21 ldr r0, =__intbss_start
22 ldr r1, =__intbss_size
23 bl bzero
24 ldr r0, =__extbss_start
25 ldr r1, =__extbss_size
26 bl bzero
27 /* we can start Nucleus now! */
28 b INT_Initialize
29
30 /*
31 * riviera/support/exception.c references exit()
32 * The following kludge will allow us to pass the link for the time being
33 * until we can find a better solution, such as hooking into DAR maybe.
34 */
35
36 .globl exit
37 exit:
38 b .