FreeCalypso > hg > freecalypso-citrine
diff sysglue/sysinit.S @ 0:75a11d740a02
initial import of gsm-fw from freecalypso-sw rev 1033:5ab737ac3ad7
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Thu, 09 Jun 2016 00:02:41 +0000 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/sysglue/sysinit.S Thu Jun 09 00:02:41 2016 +0000 @@ -0,0 +1,38 @@ +/* + * 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 .