FreeCalypso > hg > freecalypso-sw
view gsm-fw/sysglue/sysinit.S @ 983:7166c8311b0d
tfc139 reworked to support both ARM and Thumb entry
author | Mychaela Falconia <falcon@ivan.Harhan.ORG> |
---|---|
date | Thu, 10 Dec 2015 08:07:47 +0000 |
parents | 02d14592bb73 |
children |
line wrap: on
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 .