recipes/linux/logicpd-pxa270-2.6.19.2/logicpd-pxa270-hardware-id-hack.patch

   1
   2 Index: arch/arm/kernel/head.S
   3 ===================================================================
   4 RCS file: /cvs/eps/dev_eng/sw/products/Linux/PXAEngine/pxa/linux-2.6.17-rc5/arch/arm/kernel/head.S,v
   5 retrieving revision 1.1.1.1
   6 diff -c -3 -p -r1.1.1.1 head.S
   7 *** arch/arm/kernel/head.S      29 May 2006 00:53:47 -0000      1.1.1.1
   8 --- arch/arm/kernel/head.S      1 Jun 2006 17:37:16 -0000
   9 *************** ENTRY(stext)
  10 *** 74,79 ****
  11 --- 74,93 ----
  12         msr     cpsr_c, #PSR_F_BIT | PSR_I_BIT | MODE_SVC @ ensure svc mode
  13                                                 @ and irqs disabled
  14         mrc     p15, 0, r9, c0, c0              @ get processor id
  15 +
  16 +       /* LPD--
  17 +        * This fakes out the Linux kernel into believing that it is
  18 +        * running on a Mainstone hardware platform. The LogicLoader (LoLo)
  19 +        * doesn't currently pass kernel parameters correctly for 2.6 ARM
  20 +        * kernels. Therefore, we just hardcode it here.
  21 +        *
  22 +        * --LPD
  23 +        */
  24 +       mov     r0, #0
  25 +       mov     r1, #0x300
  26 +       orr     r1, r1, #0x0a0
  27 +       orr     r1, r1, #0x002
  28 +
  29         bl      __lookup_processor_type         @ r5=procinfo r9=cpuid
  30         movs    r10, r5                         @ invalid processor (r5=0)?
  31         beq     __error_p                       @ yes, error 'p'