Commit Graph

3 Commits

Author SHA1 Message Date
Ingo Weinhold
906b28a9ac Added some PPC support to the PCI bus manager. We scan the Open Firmware
device tree for PCI controllers and make them known to the bus manager,
if we know how to talk with them. ATM we support only the UniNorth chip,
which can be found in G4 Macs (code ported from FreeBSD).
As far as I can judge it, all attached devices are identified correctly
on all three host bridges of my Mac mini.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@16102 a95241bf-73f2-0310-859d-f6bbb57e9c96
2006-01-26 15:21:31 +00:00
Ingo Weinhold
f602da2b72 * Turned the kernel platform support from a library into an object.
* Moved the Open Firmware function platform_get_next_device() from
  the boot loader into the kernel (renamed to of_get_next_device()).



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@16101 a95241bf-73f2-0310-859d-f6bbb57e9c96
2006-01-26 15:06:59 +00:00
Ingo Weinhold
957a1b17eb * Introduced new build system variables
{HAIKU,HOST,TARGET}_KERNEL_PIC_{CC,LINK}FLAGS which define the
  compiler/linker flags specifying the kind of position independence
  the kernel shall have. For x86 we had and still have -fno-pic, but the
  PPC kernel has -fPIE (position independent executable) now, as we
  need to relocate it.
* The boot loader relocates the kernel now. Mostly copied the relocation
  code from the kernel ELF loader. Almost completely rewrote the PPC
  specific relocation code, though. It's more correct and more complete now
  (some things are still missing though).
* Added boot platform awareness to the kernel. Moved the generic
  Open Firmware code (openfirmware.c/h) from the boot loader to the kernel.
* The kernel PPC serial debug output is sent to the console for the time
  being.
* The PPC boot loader counts the CPUs now and allocates the kernel stacks
  (made OF device iteration a bit more flexible on the way -- the search
  can be restricted to subtree). Furthermore we really enter the kernel...
  (Yay! :-) ... and crash in the first dprintf() (in the atomic_set()
  called by acquire_spinlock()). kprintf() works, though.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15756 a95241bf-73f2-0310-859d-f6bbb57e9c96
2005-12-30 21:20:07 +00:00