view gsm-fw/sysglue/sysinit.S @ 1034:405b5469abc4
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author
Mychaela Falconia <falcon@freecalypso.org>
date
Sun, 12 Jun 2016 19:06:34 +0000 (2016-06-12)
parents
02d14592bb73
children
line source
+ − /*
+ − * This assembly module, which puts bits of code into several different
+ − * sections, contains those essential entry point etc bits which are common
+ − * to both the regular flashable build and the fc-xram development build.
+ − */
+ −
+ − .section iram.vectors,"ax",%progbits
+ − .code 32
+ − #include "vectors.S"
+ −
+ − .section xip.text,"ax",%progbits
+ − .code 32
+ − .globl _FlashorXram_entry
+ − _FlashorXram_entry:
+ − /* enable Calypso boot ROM for the ARM exception and IRQ/FIQ vectors */
+ − ldr r1, =0xFFFFFB10
+ − mov r2, #0x0100
+ − strh r2, [r1]
+ − /* now we can call any function w/o worry as to where it lives */
+ − /* clear int.bss and ext.bss, using bzero() from libc */
+ − ldr r0, =__intbss_start
+ − ldr r1, =__intbss_size
+ − bl bzero
+ − ldr r0, =__extbss_start
+ − ldr r1, =__extbss_size
+ − bl bzero
+ − /* we can start Nucleus now! */
+ − b INT_Initialize
+ −
+ − /*
+ − * riviera/support/exception.c references exit()
+ − * The following kludge will allow us to pass the link for the time being
+ − * until we can find a better solution, such as hooking into DAR maybe.
+ − */
+ −
+ − .globl exit
+ − exit:
+ − b .