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Revision 1.1.1.1 (vendor branch), Tue Mar 4 16:07:49 2008 UTC (16 years, 3 months ago) by nbrk
Branch: OPENBSD_4_2_BASE, MAIN
CVS Tags: jornada-partial-support-wip, HEAD
Changes since 1.1: +0 -0 lines

Import of OpenBSD 4.2 release kernel tree with initial code to support 
Jornada 720/728, StrongARM 1110-based handheld PC.
At this point kernel roots on NFS and boots into vfs_mountroot() and traps.
What is supported:
- glass console, Jornada framebuffer (jfb) works in 16bpp direct color mode
(needs some palette tweaks for non black/white/blue colors, i think)
- saic, SA11x0 interrupt controller (needs cleanup)
- sacom, SA11x0 UART (supported only as boot console for now)
- SA11x0 GPIO controller fully supported (but can't handle multiple interrupt
handlers on one gpio pin)
- sassp, SSP port on SA11x0 that attaches spibus
- Jornada microcontroller (jmcu) to control kbd, battery, etc throught
the SPI bus (wskbd attaches on jmcu, but not tested)
- tod functions seem work
- initial code for SA-1111 (chip companion) : this is TODO

Next important steps, i think:
- gpio and intc on sa1111
- pcmcia support for sa11x0 (and sa1111 help logic)
- REAL root on nfs when we have PCMCIA support (we may use any of supported pccard NICs)
- root on wd0! (using already supported PCMCIA-ATA)

OUTPUT_FORMAT("elf32-tradbigmips", "elf32-tradlittlemips",
	      "elf32-tradbigmips")
OUTPUT_ARCH(mips)
ENTRY(_start)
SECTIONS
{
  /* Read-only sections, merged into text segment: */
  . = 0x80010000 + SIZEOF_HEADERS;
  .text      :
  {
    _ftext = . ;
    *(.text)
    *(.rodata)
    *(.rodata1)
    *(.reginfo)
    *(.init)
    *(.stub)
    /* .gnu.warning sections are handled specially by elf32.em.  */
    *(.gnu.warning)
  } =0
  _etext = .;
  PROVIDE (etext = .);
  .fini      : { *(.fini)    } =0
  .data    :
  {
    _fdata = . ;
    *(.data)
    CONSTRUCTORS
  }
  .data1   : { *(.data1) }
  .ctors         : { *(.ctors)   }
  .dtors         : { *(.dtors)   }
  _gp = ALIGN(16) + 0x7ff0;
  .got           :
  {
    *(.got.plt) *(.got)
   }
  /* We want the small data sections together, so single-instruction offsets
     can access them all, and initialized data all before uninitialized, so
     we can shorten the on-disk segment size.  */
  .sdata     : { *(.sdata) }
  .lit8 : { *(.lit8) }
  .lit4 : { *(.lit4) }
  _edata  =  .;
  PROVIDE (edata = .);
  __bss_start = .;
  _fbss = .;
  .sbss      : { *(.sbss) *(.scommon) }
  .bss       :
  {
   *(.dynbss)
   *(.bss)
   *(COMMON)
  }
  _end = . ;
  PROVIDE (end = .);
  /* These are needed for ELF backends which have not yet been
     converted to the new style linker.  */
  .stab 0 : { *(.stab) }
  .stabstr 0 : { *(.stabstr) }
  /* DWARF debug sections.
     Symbols in the .debug DWARF section are relative to the beginning of the
     section so we begin .debug at 0.  It's not clear yet what needs to happen
     for the others.   */
  .debug          0 : { *(.debug) }
  .debug_srcinfo  0 : { *(.debug_srcinfo) }
  .debug_aranges  0 : { *(.debug_aranges) }
  .debug_pubnames 0 : { *(.debug_pubnames) }
  .debug_sfnames  0 : { *(.debug_sfnames) }
  .line           0 : { *(.line) }
  /* These must appear regardless of  .  */
  .gptab.sdata : { *(.gptab.data) *(.gptab.sdata) }
  .gptab.sbss : { *(.gptab.bss) *(.gptab.sbss) }
}