interrupt handler in blob

[Abraham vd M. <ab...@2d...>]

Hi!

I'm beating my head against a stone here :P

If I set the irq exception handler to any address in a
INIT_LEVEL_DRIVER_SELECTION hook and I check that address later on in a
INIT_LEVEL_OTHER_STUFF hook, the address differs, e.g. with

static void frodo_set_irq()
{
   u32 *irq_vector =3D (u32 *) 0x00000018;
   *irq_vector =3D 0xdeadbeaf;  =20
}
__initlist(frodo_set_irq,INIT_LEVEL_DRIVER_SELECTION);

static void frodo_debug_irq()
{
   u32 *irq_vector =3D (u32 *) 0x00000018;
   printf ("*irq_vector =3D=3D 0x%.8x\n",*irq_vector);  =20
}
__initlist(frodo_debug_irq,INIT_LEVEL_OTHER_STUFF);

I get *irq_vector =3D=3D 0xea0000c1 when booting blob.

I can't see anything in the second stage boot loader that modifies this
address, so what is happening here?

--=20

Regards
 Abraham

"Kill the Wabbit, Kill the Wabbit, Kill the Wabbit!"
-- Looney Tunes, "What's Opera Doc?" (1957, Chuck Jones)

__________________________________________________________
 Abraham vd Merwe - 2d3D, Inc.

 Device Driver Development, Outsourcing, Embedded Systems

  Cell: +27 82 565 4451         Snailmail:
   Tel: +27 21 761 7549            Block C, Aintree Park
   Fax: +27 21 761 7648            Doncaster Road
 Email: ab...@2d...         Kenilworth, 7700
  Http: http://www.2d3d.com        South Africa