Commit Graph

14 Commits

Author SHA1 Message Date
Andrew Turner
47264cb680 Move the definitions of the fdt functions from a uboot header to a new fdt
header. There is nothing in the fdt spec that ties it to U-Boot.

While here sort and fix the signature of fdt_setup_fdtp.

MFC after:	1 week
2014-11-01 10:50:18 +00:00
Roger Pau Monné
aa389b4f8c howto_names: unify declaration
Approved by: gibbs
Sponsored by: Citrix Systems R&D

boot/i386/efi/bootinfo.c:
boot/i386/libi386/bootinfo.c:
boot/ia64/common/bootinfo.c:
boot/powerpc/ofw/metadata.c:
boot/powerpc/ps3/metadata.c:
boot/sparc64/loader/metadata.c:
boot/uboot/common/metadata.c:
boot/userboot/userboot/bootinfo.c:
i386/xen/xen_machdep.c:
 - Include sys/boot.h
 - Remove custom definition of howto_names.

sys/boot.h:
 - Define howto_names.

x86/xen/pv.c:
 - Include sys/boot.h
2014-03-11 10:13:06 +00:00
Ian Lepore
f07b2d045f Include needed header. I don't know why clang didn't complain about this
but gcc sure did.
2014-03-02 17:19:19 +00:00
Ian Lepore
bc837fc0c0 Prevent fdt data loaded from a file from overwriting the kernel environment,
by having uboot_autoload() do the fdt setup (which may load a file) rather
than waiting until we're actually in the process of launching the kernel.

As part of making this happen...
 - Define LOADER_FDT_SUPPORT on the uboot/lib compile command line when
   MK_FDT is set.
 - Make fdt_setup_fdtb() public.
 - Declare public fdt_whatever() functions in a header instead of using
   scattered extern decls in .c files.
2014-03-01 19:02:00 +00:00
Ian Lepore
33f9e1bd94 Do metadata relocation fixup on all loaded modules, not just the kernel.
Approved by:	cognet (mentor)
2013-01-30 23:49:36 +00:00
Oleksandr Tymoshenko
ee9b837148 - Implement "fdt mres" sub-command that prints reserved memory regions
- Add "fdt addr" subcommand that lets you specify preloaded blob address
- Do not pre-initialize blob for "fdt addr"
- Do not try to load dtb every time fdt subcommand is issued,
    do it only once
- Change the way DTB is passed to kernel. With introduction of "fdt addr"
    actual blob address can be not virtual but physical or reside in
    area higher then 64Mb. ubldr should create copy of it in kernel area
    and pass pointer to this newly allocated buffer which is guaranteed to work
    in kernel after switching on MMU.
- Convert memreserv FDT info to "memreserv" property of root node
    FDT uses /memreserve/ data to notify OS about reserved memory areas.
    Technically it's not real property, it's just data blob, sequence
    of <start, size> pairs where both start and size are 64-bit integers.
    It doesn't fit nicely with OF API we use in kernel, so in order to unify
    thing ubldr converts this data to "memreserve" property using the same
    format for addresses and sizes as /memory node.
2012-11-30 03:15:50 +00:00
Tim Kientzle
c3a9b90973 Access the device tree blob via copyin/copyout.
The code previously assumed that copyin/copyout did no
address translation and that the device tree blob could
be manipulated in-place (with only a few adjustments for
the ELF loader offset).  This isn't possible on all platforms,
so the revised code uses copyout() to copy the device tree
blob into a heap-allocated buffer and then updates the
device tree with copyout().  This isn't ideal, since it
bloats the loader memory usage, but seems the only feasible
approach (short of rewriting all of the fdt manipulation
routines).
2012-05-17 04:04:48 +00:00
Tim Kientzle
5bf877dace Don't call strcmp with a NULL pointer.
In particular, on the AM335x, which comes up with no memory
mapped to low addresses, dereferencing the NULL causes a crash.
2012-05-06 16:01:58 +00:00
Rafal Jaworowski
04296b6f18 Improve device tree blob (DTB) handling in loader(8).
Enable using the statically embedded blob from the kernel, if present. The KLD
loaded DTB takes precedence, but they are both recognized and handled in the
same way.

Submitted by:	Lukasz Wojcik
Obtained from:	Semihalf
MFC after:	1 week
2012-03-20 13:08:57 +00:00
Rafal Jaworowski
6031d0b167 Get rid of bootinfo for good in loader (U-Boot-based) and ARM.
For FDT-enabled platforms the device tree is a modern replacement for bootinfo
config data.
2010-07-11 21:11:23 +00:00
Rafal Jaworowski
29d268b567 Fix conditional FDT support in loader(8). 2010-06-13 12:46:32 +00:00
Rafal Jaworowski
04cb90189b Initial loader(8) support for Flattened Device Tree.
o This is disabled by default for now, and can be enabled using WITH_FDT at
  build time.

o Tested with ARM and PowerPC.

Reviewed by:	imp
Sponsored by:	The FreeBSD Foundation
2010-05-25 15:21:39 +00:00
Rafal Jaworowski
035622ef18 Provide an effective (relocated) address when building modules metadata.
This lets modules loaded dynamically in loader(8) work for U-Boot-based
platforms.

MFC after:	1 week
2009-11-19 16:25:41 +00:00
Rafal Jaworowski
51e8f5a470 Make metadata.c shared across all platforms using U-Boot.
This will [soon] be needed for ARM.
2008-09-03 15:52:05 +00:00