Commit graph

49 commits

Author SHA1 Message Date
Stefan Reinauer
0528863e20 This patch reshapes northbridge and southbridge inclusion. It selects
southbridge drivers in Kconfig.

* It includes initial superio code as well, but there is at least one
  error in the pnp_device.c/superio scenario left

* Fixed biosemu.c, vm86.c, pnp_device.c (sort of)

* Enable vm86 instead of x86emu per default for vga init for now. This
  makes VGA in qemu work. There might be a bug in x86emu or the compiler
  I am using. (gcc version 4.1.2 20070115 (prerelease) (SUSE Linux))

* Import isa-dma.c, keyboard.c and i8259.c from v2 /pc80, which was taken
  from LinuxBIOSv1 released from LANL under release LA-CC Number 00-34
  and using parts from the Linux kernel.

This patch makes vga and keyboard work in qemu. Yippie

Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Ronald G. Minnich <rminnich@gmail.com>



git-svn-id: svn://coreboot.org/repository/LinuxBIOSv3@260 f3766cd6-281f-0410-b1cd-43a5c92072e9
2007-03-13 09:31:08 +00:00
Stefan Reinauer
fe23cd79ba Add x86emu support. This adds initial x86emu/vm86 support to LinuxBIOSv3
This is an infrastructure patch, it will not make vga output work yet. 
Another patch will follow.

This code is imported from LinuxBIOSv2 which had this code imported from
LinuxBIOSv1.

Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Stefan Reinauer <stepan@coresystems.de>



git-svn-id: svn://coreboot.org/repository/LinuxBIOSv3@256 f3766cd6-281f-0410-b1cd-43a5c92072e9
2007-03-12 23:47:26 +00:00
Stefan Reinauer
9c67ea60b7 Make the LinuxBIOS build output look a lot like the stuff people
are used to from the Linux kernel.

Signed-off-by: Uwe Hermann <uwe@hermann-uwe.de>
Acked-by: Stefan Reinauer <stepan@coresystems.de>



git-svn-id: svn://coreboot.org/repository/LinuxBIOSv3@243 f3766cd6-281f-0410-b1cd-43a5c92072e9
2007-03-11 17:55:16 +00:00
Uwe Hermann
12213f870d This patch drives the idea of a hierarchical structure below $(obj) a bit
further. It is only tested with my Kconfig build dir fixes applied.

Not sure how pretty this is. All the mkdirs increase build time by 0.2s,
so it looks a lot more nasty than it actually is. If wishes, we can create the
whole directory structure below build in the "prepare" target. It's not faster,
but more limited to one place.

The next step could be to spread out *_LIB_OBJ to lib/Makefile. in which case
it is nice that you can just write object.o instead of $(obj)/object.o or
$(obj)/lib/object.o ...

The top level modules (initram, stage0, stage2, ..) are still in $(obj).

So are the northbridge and southbridge object files - These require some more
cleanup anyways, as they're defined in the mainboard Makefile.

Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Uwe Hermann <uwe@hermann-uwe.de>



git-svn-id: svn://coreboot.org/repository/LinuxBIOSv3@242 f3766cd6-281f-0410-b1cd-43a5c92072e9
2007-03-11 16:48:33 +00:00
Stefan Reinauer
d44bf71932 This is another LAR update. It changes the way a LinuxBIOS image is
built.
Instead of having a bootblock and a lar archive, the bootblock is now
part of the archive:

$ lar -l build/linuxbios.rom
  normal/initram (93 bytes @0x24)
  normal/payload (32768 bytes @0xb4)
  normal/stage2 (32028 bytes @0x80e4)
  linuxbios.bootblock (16384 bytes @0x3c000)

Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Uwe Hermann <uwe@hermann-uwe.de>



git-svn-id: svn://coreboot.org/repository/LinuxBIOSv3@240 f3766cd6-281f-0410-b1cd-43a5c92072e9
2007-03-11 13:55:36 +00:00
Stefan Reinauer
b1149de700 spring cleaning. move platform independent console code,
and drop setup_before_car.c. 

The third part of the spring cleaning will get a proper patch to the
list at some point.

Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Stefan Reinauer <stepan@coresystems.de>



git-svn-id: svn://coreboot.org/repository/LinuxBIOSv3@237 f3766cd6-281f-0410-b1cd-43a5c92072e9
2007-03-10 18:39:22 +00:00
Uwe Hermann
bd5ca845e9 Run indent for util/lar/*. Cosmetic fixes in arch/x86/Makefile (trivial).
Signed-off-by: Uwe Hermann <uwe@hermann-uwe.de>
Acked-by: Uwe Hermann <uwe@hermann-uwe.de>



git-svn-id: svn://coreboot.org/repository/LinuxBIOSv3@235 f3766cd6-281f-0410-b1cd-43a5c92072e9
2007-03-10 16:31:02 +00:00
Uwe Hermann
88f2f6402a This is a major update to the lar archiver. It simplifies the build process and
is a base change to make the whole linuxbios.rom a lar file.

* fix a whole lot of lar bugs (that never showed up in production yet)
* add proper option parsing to lar
* add verbose option
* add option to automatically pad lar archive to a certain size
* add proper file handling (specifying a directory will now pack all files
  in that directory into the lar, instead of a 4k dummy file)
* catch lots of user errors, less implicit assumptions
* merge all header files into lib.h (except lar.h which is needed by other
  programs using the lar format). lib.h is still very small.
* print errors to stderr
* (slipped in) copy linuxbios.rom to bios.bin for qemu ;-)
* adapt arch/x86/Makefile to use the new features.
* set version to 0.9
* lots of security bugs fixed (thanks to Uwe!)
* catch low memory conditions in strdup

Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Uwe Hermann <uwe@hermann-uwe.de>



git-svn-id: svn://coreboot.org/repository/LinuxBIOSv3@234 f3766cd6-281f-0410-b1cd-43a5c92072e9
2007-03-10 16:20:01 +00:00
Stefan Reinauer
6869f4a129 new device model from Ron
This tree shows the new model. It demonstrates the constructor array
in use, for devices that are and are not specified in the dts. It
introduces a new generic structure, device_id, analogous to
device_path, which can describe all the types of device IDs we have.
It shows a way to set up arrays of structs, in the dts, for the
constructors, so we avoid ldscript hacks.

Signed-off-by: Ronald G. Minnich <rminnich@gmail.com>
Acked-by: Stefan Reinauer <stepan@coresystems.de>



git-svn-id: svn://coreboot.org/repository/LinuxBIOSv3@233 f3766cd6-281f-0410-b1cd-43a5c92072e9
2007-03-10 15:55:41 +00:00
Stefan Reinauer
d8e330ef72 calculate LAR size dynamically from .config settings
Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Ronald G. Minnich <rminnich@gmail.com>



git-svn-id: svn://coreboot.org/repository/LinuxBIOSv3@205 f3766cd6-281f-0410-b1cd-43a5c92072e9
2007-03-06 15:43:34 +00:00
Uwe Hermann
54bfbf97e5 Various cosmetic fixes (trivial).
Signed-off-by: Uwe Hermann <uwe@hermann-uwe.de>
Acked-by: Uwe Hermann <uwe@hermann-uwe.de>



git-svn-id: svn://coreboot.org/repository/LinuxBIOSv3@200 f3766cd6-281f-0410-b1cd-43a5c92072e9
2007-03-06 05:08:31 +00:00
Ronald G. Minnich
b41e38e4a2 This is odd, but try again.
Comitting IP checksum code, and its usage in linuxbios table creation. 

Mods to the dts, so that the device ops for the domain are set to the
proper structure. This change is important. It gets rid of the obscure,
confusing use of the enable_dev function to pick the right ops for a
device. It makes the ops initilization very clear at the top level, in
the dts. This has been tested and works, linux boots on Bochs under
this version. 

Signed-off-by: Ronald G. Minnich <rminnich@gmail.com>
Acked-by: Stefan Reinauer <stepan@coresystems.de>



git-svn-id: svn://coreboot.org/repository/LinuxBIOSv3@191 f3766cd6-281f-0410-b1cd-43a5c92072e9
2007-03-05 21:29:45 +00:00
Uwe Hermann
41b2c207be Add a Kconfig option for choosing the payload filename and path.
Signed-off-by: Uwe Hermann <uwe@hermann-uwe.de>
Acked-by: Stefan Reinauer <stepan@coresystems.de>



git-svn-id: svn://coreboot.org/repository/LinuxBIOSv3@180 f3766cd6-281f-0410-b1cd-43a5c92072e9
2007-03-03 19:23:16 +00:00
Ronald G. Minnich
637e4588be add pci ops so that we can do something.
Signed-off-by: Ronald G. Minnich <rminnich@gmail.com>
Acked-by: Ronald G. Minnich <rminnich@gmail.com>
Acked-by: Stefan Reinauer <stepan@coresystems.de>


git-svn-id: svn://coreboot.org/repository/LinuxBIOSv3@172 f3766cd6-281f-0410-b1cd-43a5c92072e9
2007-03-02 18:17:02 +00:00
Uwe Hermann
44fbc3e786 Add the author of the respective changes by coresystems GmbH.
Some minor cosmetic fixes (trivial).

Signed-off-by: Uwe Hermann <uwe@hermann-uwe.de>
Acked-by: Uwe Hermann <uwe@hermann-uwe.de>



git-svn-id: svn://coreboot.org/repository/LinuxBIOSv3@155 f3766cd6-281f-0410-b1cd-43a5c92072e9
2007-02-27 21:49:28 +00:00
Stefan Reinauer
6ab0d9703d remove some of the undefined symbols in stage2. Now only the pci drivers
are undefined (trivial). 

Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Stefan Reinauer <stepan@coresystems.de>



git-svn-id: svn://coreboot.org/repository/LinuxBIOSv3@151 f3766cd6-281f-0410-b1cd-43a5c92072e9
2007-02-27 21:31:20 +00:00
Ronald G. Minnich
7513bfdb03 Lots of changes here, build broken, but people need to see this.
renamed the phase3 etc. to stuff like phase3_scan, so you can get a
rought idea what it is. The names mean more. 

adding pci_device and, at the same time, showing how we can get rid of
the really ugly stuff that crept in. note you can specify ops in the
dts, which avoids the need for hideous stuff like this:
static void enable_dev(struct device *dev)
{
        /* Set the operations if it is a special bus type */
        if (dev->path.type == DEVICE_PATH_PCI_DOMAIN) {
                dev->ops = &pci_domain_ops;
                pci_set_method(dev);
        }
        else if (dev->path.type == DEVICE_PATH_APIC_CLUSTER) {
                dev->ops = &cpu_bus_ops;
        }
}

So that foolishness is gone. 

added delay functions. 

Note that we have include/lib.h, and define all the functions in there,
instead of in lots of fiddly includes. 

Brought back the enable op, once I understood it; renamed it to
something that makes sense. 


I'll be on a plane soon, will continue to work, but at least you can see
what's going on here. 

Signed-off-by: Ronald G. Minnich <rminnich@gmail.com>
Acked-by: Ronald G. Minnich <rminnich@gmail.com>
Acked-by: Stefan Reinauer <stepan@coresystems.de>



git-svn-id: svn://coreboot.org/repository/LinuxBIOSv3@139 f3766cd6-281f-0410-b1cd-43a5c92072e9
2007-02-27 06:02:52 +00:00
Ronald G. Minnich
5274be0191 Add an emulation northbridge for the 440bx. The emulation is necessary
because not all emulators get the ram size registers right, or so we
hear. 

This northbridge is still incomplete. We are not just copying the v2
one, as we are trying to undo the various hacks that crept in over the
years, due to limitations in the v2 device model. Just look at the
i440bx in v2 and you can see what I mean. We are working to find a
better way to get the job done than those hacks. They are just too
confusing for people to follow. 

add an include for the northbridge makefile into the qemu Makefile. 
Re-order the includes in arch/x86/Makefile so we can pick up .o files
from other places. Add a STAGE2_CHIPSET_OBJ for objects defined in those
makefiles included in mainboard. 

Current issues: the enable_dev function for the i440bx is not getting
called. Enable_dev should be renamed to phase3_setup or something that
actually means something. The name as it is is totally useless.

Signed-off-by: Ronald G. Minnich <rminnich@gmail.com>
Acked-by: Ronald G. Minnich <rminnich@gmail.com>
Acked-by: Stefan Reinauer <stepan@coresystems.de>



git-svn-id: svn://coreboot.org/repository/LinuxBIOSv3@138 f3766cd6-281f-0410-b1cd-43a5c92072e9
2007-02-27 03:39:36 +00:00
Ronald G. Minnich
0e68335b17 Fix a typo in device.c -- calling phase1 in phase2
start documenting the device model -- since it is clear to me from
reading v2 that not even the v2 guys totally got it
call write_tables in stage2
fix the makefile to put stage2.o first to make sure it gets
called. 

Signed-off-by: Ronald G. Minnich <rminnich@gmail.com>
Acked-by: Ronald G. Minnich <rminnich@gmail.com>
Acked-by: Stefan Reinauer <stepan@coresystems.de>



git-svn-id: svn://coreboot.org/repository/LinuxBIOSv3@135 f3766cd6-281f-0410-b1cd-43a5c92072e9
2007-02-26 19:24:33 +00:00
Stefan Reinauer
f8682ef7f3 fix compilation. This is trivial.
I was meaning to check in more, but I lost 4h of work due to some ext3
problem. Bummer I believed those saying its more stable than reiserfs.

Signed-off-by: Stefan Reinauer <stepan@openbios.org>
Acked-by: Stefan Reinauer <stepan@openbios.org>



git-svn-id: svn://coreboot.org/repository/LinuxBIOSv3@134 f3766cd6-281f-0410-b1cd-43a5c92072e9
2007-02-26 19:10:51 +00:00
Stefan Reinauer
6b86ee6c96 some dependencies fixes.
Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Ronald Minnich <rminnich@gmail.com>



git-svn-id: svn://coreboot.org/repository/LinuxBIOSv3@132 f3766cd6-281f-0410-b1cd-43a5c92072e9
2007-02-26 13:59:35 +00:00
Ronald G. Minnich
4282d12cdc Initial cleanup of the linuxbios tables code. Now it seems we need
resource .c functions -- sigh -- this will be next. 

fix types, fix some usage, but we do not yet generate pirqi, mptables,
or acpi. This will be next. 

This code will be called from phase6 in stage 2, and probably 
attached to a cpu. Or, it will be inline in the stage2.c code, since 
the need for tables is generic. 

I'm also going to move the cryptic usage of lgdt from here to stage 2,
phase 2, of the cpu code. The device model improvements are making it
easier to think about when things happen, we are finding. 

I'm going to get lunch and go see some of brussels. It's a miserable day
but ... 

Signed-off-by: Ronald G. Minnich <rminnich@gmail.com>
Acked-by: Ronald G. Minnich <rminnich@gmail.com>
Acked-by: Stefan Reinauer <stepan@coresystems.de>




git-svn-id: svn://coreboot.org/repository/LinuxBIOSv3@130 f3766cd6-281f-0410-b1cd-43a5c92072e9
2007-02-26 11:45:51 +00:00
Ronald G. Minnich
8b05b1556e I broke the build, but Stefan is getting on the train, and needs this
commit. adding support for tables.

Signed-off-by: Ronald G. Minnich <rminnich@gmail.com>
Acked-by: Ronald G. Minnich <rminnich@gmail.com>
Acked-by: Stefan Reinauer <stepan@coresystems.de>



git-svn-id: svn://coreboot.org/repository/LinuxBIOSv3@129 f3766cd6-281f-0410-b1cd-43a5c92072e9
2007-02-26 09:52:02 +00:00
Uwe Hermann
d977facd0a Silence warnings and beautify build output. We might want to turn on more
warnings for developing/debugging, but not for the default LinuxBIOS build.

These are purely cosmetic changes, no build process changes (trivial).

Signed-off-by: Uwe Hermann <uwe@hermann-uwe.de>
Acked-by: Uwe Hermann <uwe@hermann-uwe.de>



git-svn-id: svn://coreboot.org/repository/LinuxBIOSv3@126 f3766cd6-281f-0410-b1cd-43a5c92072e9
2007-02-26 02:15:40 +00:00
Uwe Hermann
0322a3b582 Various typos, output beautifications and cosmetic fixes (trivial).
Signed-off-by: Uwe Hermann <uwe@hermann-uwe.de>
Acked-by: Uwe Hermann <uwe@hermann-uwe.de>



git-svn-id: svn://coreboot.org/repository/LinuxBIOSv3@125 f3766cd6-281f-0410-b1cd-43a5c92072e9
2007-02-26 01:38:12 +00:00
Uwe Hermann
b68d589126 s/linuxbios/LinuxBIOS/ in a number of places (trivial).
Signed-off-by: Uwe Hermann <uwe@hermann-uwe.de>
Acked-by: Uwe Hermann <uwe@hermann-uwe.de>



git-svn-id: svn://coreboot.org/repository/LinuxBIOSv3@124 f3766cd6-281f-0410-b1cd-43a5c92072e9
2007-02-26 01:19:39 +00:00
Ronald G. Minnich
7dd602be11 Simplify elfboot, add copyright. newelfboot.c will be removed in a
minute. 

This code has been tested; we are booting filo from flash in qemu at
this point. 

Signed-off-by: Ronald G. Minnich <rminnich@gmail.com>
Acked-by: Ronald G. Minnich <rminnich@gmail.com>
Acked-by: Stefan Reinauer <stepan@coresystems.de>



git-svn-id: svn://coreboot.org/repository/LinuxBIOSv3@114 f3766cd6-281f-0410-b1cd-43a5c92072e9
2007-02-25 10:42:53 +00:00
Stefan Reinauer
5a65718dcc clean up headers as requested. drop some dead code.
Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Ronald G. Minnich <rminnich@gmail.com>



git-svn-id: svn://coreboot.org/repository/LinuxBIOSv3@111 f3766cd6-281f-0410-b1cd-43a5c92072e9
2007-02-24 17:03:53 +00:00
Ronald G. Minnich
327a4432fe newelfboot.c. this elfboot is tremendously simplified so it can run out
of FLASH. Since it runs out of FLASH, we have removed the need for
bounce buffer support. that in turn rips out all kinds of stuff, so it
is now simpler. We're ripping out all the checksum stuff -- lar does
that. 

lar.c has some debug prints removed. 

elfboot.c has some mods, but elfboot.c is going away. 

cachemain.c has a few mods for using newelfboot. 

Makefile reflects these changes. 

Not tested, I'm going to bed though, so here you are.

Signed-off-by: Ronald G. Minnich <rminnich@gmail.com>
Acked-by: Ronald G. Minnich <rminnich@gmail.com>
Acked-by: Stefan Reinauer <stepan@coresystems.de>



git-svn-id: svn://coreboot.org/repository/LinuxBIOSv3@108 f3766cd6-281f-0410-b1cd-43a5c92072e9
2007-02-23 19:53:11 +00:00
Stefan Reinauer
39a8f1f159 get rid of all warnings but one (lb table fake)
Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Ronald G. Minnich <rminnich@gmail.com>



git-svn-id: svn://coreboot.org/repository/LinuxBIOSv3@107 f3766cd6-281f-0410-b1cd-43a5c92072e9
2007-02-23 15:35:42 +00:00
Stefan Reinauer
cfa73bace2 our code grew quickly. Since stage0 carries the library for all the
other stages, give it 16k instead of 8

Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Ronald G. Minnich <rminnich@gmail.com>




git-svn-id: svn://coreboot.org/repository/LinuxBIOSv3@106 f3766cd6-281f-0410-b1cd-43a5c92072e9
2007-02-23 14:04:39 +00:00
Ronald G. Minnich
08016c4ca8 Basic elfboot functionality is in now.
We're trying to avoid the bounce buffer mess, which is really complex, 
by running elfboot out of the boot block. This code includes a really 
dumb allocator in elfboot which may or may not work. It basically
allocates off the elfboot() stack. 

This builds, but elfboot is not tested. That's next. 
Signed-off-by: Ronald G. Minnich <rminnich@gmail.com>
Acked-by: Ronald G. Minnich <rminnich@gmail.com>
Acked-by: Stefan Reinauer <stepan@coresystems.de>



git-svn-id: svn://coreboot.org/repository/LinuxBIOSv3@102 f3766cd6-281f-0410-b1cd-43a5c92072e9
2007-02-23 13:39:07 +00:00
Ronald G. Minnich
b08b26ebcb Add compute_ip_checksum to makefile
Signed-off-by: Ronald G. Minnich <rminnich@gmail.com>
Acked-by: Ronald G. Minnich <rminnich@gmail.com>
Acked-by: Stefan Reinauer <stepan@coresystems.de>



git-svn-id: svn://coreboot.org/repository/LinuxBIOSv3@97 f3766cd6-281f-0410-b1cd-43a5c92072e9
2007-02-23 12:23:33 +00:00
Ronald G. Minnich
534f6d31be mods to elf.h to use arch/elf.h
Some updates to the docs, but these will change more. 
add memcmp. Crude implementation, but it really does not matter. 
add compute_ip_checksum.c
mods to elfboot. Thanks to our new design, BOUNCE BUFFERS ARE DEAD. Yee
ha!
updates to makefile

Signed-off-by: Ronald G. Minnich <rminnich@gmail.com>
Acked-by: Ronald G. Minnich <rminnich@gmail.com>
Acked-by: Stefan Reinauer <stepan@coresystems.de>



git-svn-id: svn://coreboot.org/repository/LinuxBIOSv3@96 f3766cd6-281f-0410-b1cd-43a5c92072e9
2007-02-23 12:21:47 +00:00
Stefan Reinauer
281cd76b38 * cleanup/refactor makefiles.
* remove some warnings

Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Ronald G. Minnich <rminnich@gmail.com>



git-svn-id: svn://coreboot.org/repository/LinuxBIOSv3@95 f3766cd6-281f-0410-b1cd-43a5c92072e9
2007-02-23 12:19:25 +00:00
Stefan Reinauer
0c11caa5e0 fix a warning, clean up code and makefiles
Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Ronald G. Minnich <rminnich@gmail.com>



git-svn-id: svn://coreboot.org/repository/LinuxBIOSv3@94 f3766cd6-281f-0410-b1cd-43a5c92072e9
2007-02-23 11:51:32 +00:00
Stefan Reinauer
791e590dea * rename devices to device for consistency
* fix malloc.c warnings
* add PCI_BUS_SEGN_BITS to pci.h


Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Ronald G. Minnich <rminnich@gmail.com>



git-svn-id: svn://coreboot.org/repository/LinuxBIOSv3@92 f3766cd6-281f-0410-b1cd-43a5c92072e9
2007-02-23 11:23:37 +00:00
Ronald G. Minnich
01d7545b50 Set up default root device. Fix up printk stuff.
Fix up dts to set up ops struct member. Fix dts for qemu mainboard. 
We are getting past stage2 now, it is time for elfboot. 

Signed-off-by: Ronald G. Minnich <rminnich@gmail.com>
Acked-by: Ronald G. Minnich <rminnich@gmail.com>
Acked-by: Stefan Reinauer <stepan@coresystems.de>



git-svn-id: svn://coreboot.org/repository/LinuxBIOSv3@88 f3766cd6-281f-0410-b1cd-43a5c92072e9
2007-02-23 10:38:22 +00:00
Stefan Reinauer
9c4c15c5ac Clean up Makefiles
Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Ronald G. Minnich <rminnich@gmail.com>



git-svn-id: svn://coreboot.org/repository/LinuxBIOSv3@86 f3766cd6-281f-0410-b1cd-43a5c92072e9
2007-02-23 09:54:10 +00:00
Ronald G. Minnich
c8ce9649ad Make sure to link stage 2 at 0x1000. We are now getting pretty far:
Phase 1: done
Phase 2: early setup ...
Phase 2: done
Phase 3: Enumerating buses...
dev_root missing 'ops' initialization
Allocating resources...
dev_root missing ops initialization
Enabling resources...
done.
Phase 6: Initializing devices...
Phase 6:Devices initialized

Now to fix up the device stuff. Once this is done, a linux kernel load
is next (i.e. elfboot)

NOTE: 0x1000 needs to become a config variable, usable in CODE and
Makefiles. 

Signed-off-by: Ronald G. Minnich <rminnich@gmail.com>
Acked-by: Ronald G. Minnich <rminnich@gmail.com>
Acked-by: Stefan Reinauer <stepan@coresystems.de>



git-svn-id: svn://coreboot.org/repository/LinuxBIOSv3@85 f3766cd6-281f-0410-b1cd-43a5c92072e9
2007-02-23 09:33:33 +00:00
Stefan Reinauer
ef81173a39 * drop objdir/srcdir
* seperate vsprintf to a seperate file as it was in v2.

Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Ronald G. Minnich <rminnich@gmail.com>



git-svn-id: svn://coreboot.org/repository/LinuxBIOSv3@83 f3766cd6-281f-0410-b1cd-43a5c92072e9
2007-02-23 09:20:15 +00:00
Ronald G. Minnich
61d24531e5 Fixes to get it to build.
This builds but dependencies need work; it takes a few 
make -k
passes :-)

Signed-off-by: Ronald G. Minnich <rminnich@gmail.com>
Acked-by: Ronald G. Minnich <rminnich@gmail.com>
Acked-by: Stefan Reinauer <stepan@coresystems.de>



git-svn-id: svn://coreboot.org/repository/LinuxBIOSv3@80 f3766cd6-281f-0410-b1cd-43a5c92072e9
2007-02-22 22:44:03 +00:00
Stefan Reinauer
417311203a Diffs which get us to stage two.
It's slightly broken by the merge, but we want to get it in.
Will be fixed tomorrow.

Signed-off-by: Ronald G. Minnich <rminnich@gmail.com>
Acked-by: Ronald G. Minnich <rminnich@gmail.com> 
Acked-by: Stefan Reinauer <stepan@coresystems.de>



git-svn-id: svn://coreboot.org/repository/LinuxBIOSv3@79 f3766cd6-281f-0410-b1cd-43a5c92072e9
2007-02-22 22:09:10 +00:00
Stefan Reinauer
0850d0cad8 Architecture changes. This gets us through stage 2.
Signed-off-by: Ronald G. Minnich <rminnich@gmail.com>
Acked-by: Ronald G. Minnich <rminnich@gmail.com> 
Acked-by: Stefan Reinauer <stepan@coresystems.de>



git-svn-id: svn://coreboot.org/repository/LinuxBIOSv3@76 f3766cd6-281f-0410-b1cd-43a5c92072e9
2007-02-22 21:39:25 +00:00
Stefan Reinauer
16a3503d0d clean up the build system.
Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Ronald G. Minnich <rminnich@gmail.com>



git-svn-id: svn://coreboot.org/repository/LinuxBIOSv3@71 f3766cd6-281f-0410-b1cd-43a5c92072e9
2007-02-22 19:12:14 +00:00
Ronald G. Minnich
3b79d32caf This is an incredibly long commit message, but I want it in here as I
expect to hear about this change. Note that Stefan and I have discussed
this change and feel it is at least worth trying. 

Also, please be aware that this change is backed by a
lot of experience with LinuxBIOS users and usage of the last 7 years. 

First I detail changes, then I detail why. 


Major changes for the new config system. 
Selection of object files, and variable setting, is now controlled by
Kconfig. 

There is only one dts now. It is in the mainboard file. It may later 
move to the target file -- we will see. 

The dts is in two parts, seperated by %%. The first part is a 
fairly standard dts, and the dtc will automatically generate a device 
tree from it. The device tree is composed of generic structures. These 
structures are identical to those of the old V2 device tree. All the 
hierarchy and parent/child/sibling relationships appear to be correctly
generated. This means that all the v2 code will work without change. 

For each node in the tree, if the node has a  property named 'config', 
then the dtc will generate a reference to a structure and an include
directive for a path -- much as in the old Config tool. 

Example: here is a fragment of a dts
==========
north {
        config = "northbridge,intel,i440bx";
};

%%

struct northbridge_intel_i440bx_config north = {
        .whatever = 1;
};
===========

The dtc will create:
#include <northbridge/intel/i440gx/config.h>
struct northbridge_intel_i440bx_config north = {
        .whatever = 1;
};

struct device dev_north {
        .chip_ops = &northbridge_intel_i440bx_ops;
        .chip_info = &north;

        .
        .
        .
};

So the programmer specifies the tree structure in dts form, indicates
which devices have a config entry, and sets up the C code for the
config. I have worked with this and am finding it very easy to use. I
think this is the way to go. Plus, we are getting rid of most of the 
include hell of the old Config system. 

Note that the config node is OPTTONAL! If you do not set it then no
structure usage/include will occur. 

WHY? 
Here is my setup for v3. I think this is good. I like it and am
finding it easy to work with.

Basically, the old config system combined makefile generation, tree
generation, and chip struct initialization in one file -- config.lb.

What we need are four things:
1. selection of .c files to build the bios with
2. the device tree -- this is built with generic structures defined in
include/device/device.h
3. The per-chip structures, usually defined in, e.g.,
northbridge/intel/i440bx/chip.h
4. setting of variables such as baud rate, etc.

Again, this was all done in Config.lb, spread all over the place, like this:
config chip.h
object superio.o

This was hard for people. So we moved the makefile stuff out into the
Kconfig system. This change eliminates (1) and (4) above.

OK, what's left? Well, with our plans from last October, we had device
object model tree stuff, AND still had chip struct initialization in
one file. (2) and (3) above. This is tough, because I was fighting the
mapping of DTS stuff to the C code. It was getting just as ugly as the
old Config.lb. I have been struggling with this for months and it just
wasn't going anywhere.

But it's way too hard to set up the device tree by hand -- I've tried
it. OTOH, it's really easy to set up the per-chip stuff by hand --
I've tried that too. I did a search via:
find ~/src/LinuxBIOSv2/src/ -name chip.h -print
and looked at them all. These files are really simple. There's no
reason to get too tricky, as there is nothing worth getting tricky
about. The problem is the device tree, not these simple chip info
structs.

So, here's the solution.

The ONLY dts is in the mainboard directory. There is no equivalent of
Config.lb in the south, north, cpu, all that stuff any more. The
Kconfig and Makefile in those directories replaced the build-related
functions of Config.lb.-- (1) and (4) above.  The only thing left was
chip.h anyway (3) above.

But how can we express the settings in chip.h via the DTS? IT's been
very hard to get this going.

So, here is the trick. The dts in the mainboard directory divides into
two parts. The first part is the standard dts. The second part is the
C code. They are seperated, as in lex and yacc, with a %%.

Here is the dts for qemu (note that the cpus keyword is still not
right, and maybe this structure needs to change; i'm not that worried
about that too much, just the big picture I'm discussing here). Also,
note I'm working with some new properties, e.g. pcipath and pcidomain
-- if these properties exist ina node, then I create initialized
structure members for them. Also see enabled and on_mainboard --
properties, but I catch them and use them.
/{
       cpus {
               config="mainboard,emulation,qemu-i386";
               emulation,qemu-i386@0{
                       enabled;
                       on_mainboard;
                       device_type = "cpu";
                       name = "emulation,qemu-i386";
                       pcidomain = "0";

                       /* the I/O stuff */
                       northbridge,intel,440bx{
                               pcipath = "0,0";
                               southbridge,intel,piix4{
                               };
                       };
               };
       };


};

%%
/* the user sets up these structs */
struct mainboard_emulation_qemu_i386_config cpus = {
               .nothing = 1,
};

You can see the device tree stuff at top. If a given node has a
property named 'config', then that means what the old 'chip' thing
meant in Config.lb. The dtc will generate an #include to pull in a
file with the path name specified in the config property. The dtc will
not set up the per-chip struct, but it will set up a pointer to a
struct when it sets up the device tree. Note that at bottom, it's up
to you to set up the initialized struct. But this was always the easy
part anyway. Instead of wacky pseudo-C like we had in config.lb, we
just do real C. It's easy. Here is what the dtc generates.

#include <device/device.h>
#include <device/pci.h>
#include <mainboard/emulation/qemu-i386/config.h>
struct device dev_southbridge_intel_piix4;
struct device dev_northbridge_intel_440bx;
struct device dev_emulation_qemu_i386_0;
struct device dev_cpus;
struct device dev_root;
extern struct chip_operations mainboard_emulation_qemu_i386_ops;
struct mainboard_emulation_qemu_i386_config cpus = {
.nothing = 1,
};

struct device dev_root = {
       .path =  { .type = DEVICE_PATH_ROOT },
       .links = 1,
       .link = {
               [0] = {
                       .dev = &dev_root,
                       .link = 0,
                       .children = &dev_cpus
               },
       },
       .bus = &dev_root.link[0],
};
struct device dev_cpus = {
       .chip_ops = &mainboard_emulation_qemu_i386_ops,
       .chip_info = &cpus,
       .links = 1,
       .link = {
               [0] = {
                       .dev = &dev_cpus,
                       .link = 0,
                       .children = &dev_emulation_qemu_i386_0
               },
       },
       .bus = &dev_root.link[0],
       .next = &dev_root,
};
struct device dev_emulation_qemu_i386_0 = {
       .enabled = 1,
       .on_mainboard = 1,
       .path = {.type=DEVICE_PATH_PCI_DOMAIN,.u={.pci_domain={ .domain = 0 }}}
,
       .links = 1,
       .link = {
               [0] = {
                       .dev = &dev_emulation_qemu_i386_0,
                       .link = 0,
                       .children = &dev_northbridge_intel_440bx
               },
       },
       .bus = &dev_cpus.link[0],
       .next = &dev_cpus,
};
struct device dev_northbridge_intel_440bx = {
       .path = {.type=DEVICE_PATH_PCI,.u={.pci={ .devfn = PCI_DEVFN(0,0)}}},
       .links = 1,
       .link = {
               [0] = {
                       .dev = &dev_northbridge_intel_440bx,
                       .link = 0,
                       .children = &dev_southbridge_intel_piix4
               },
       },
       .bus = &dev_emulation_qemu_i386_0.link[0],
       .next = &dev_emulation_qemu_i386_0,
};
struct device dev_southbridge_intel_piix4 = {
       .bus = &dev_northbridge_intel_440bx.link[0],
       .next = &dev_northbridge_intel_440bx,
};



This compiles just fine.

I think this is the right way to go, comments to me.

But, note, IT COMPILES. And it's simple. And, it will work with our
current device tree code!



Signed-off-by: Ronald G. Minnich <rminnich@gmail.com>
Acked-by: Stefan Reinauer <stepan@coresystems.de>


git-svn-id: svn://coreboot.org/repository/LinuxBIOSv3@59 f3766cd6-281f-0410-b1cd-43a5c92072e9
2007-01-26 17:30:40 +00:00
Stefan Reinauer
f2000cd4ad * This patch renames remainders the arch i386 to x86.
* fix arch/io.h to use consistent types
* add compression code and start integration into Kconfig
* update to newer version of Kconfig, and rename some occurences
  of "Linux" to "LinuxBIOS"
* set up Make framework to create linuxbios.rom

Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Ronald G Minnich <rminnich@lanl.gov>



git-svn-id: svn://coreboot.org/repository/LinuxBIOSv3@55 f3766cd6-281f-0410-b1cd-43a5c92072e9
2007-01-04 20:12:02 +00:00
Uwe Hermann
1fa5d301a6 Add missing license headers to some files, use standard LinuxBIOS license
header in some other files.

Signed-off-by: Uwe Hermann <uwe@hermann-uwe.de>
Acked-by: Stefan Reinauer <stepan@coresystems.de>



git-svn-id: svn://coreboot.org/repository/LinuxBIOSv3@54 f3766cd6-281f-0410-b1cd-43a5c92072e9
2006-12-06 12:41:20 +00:00
Stefan Reinauer
fab2c44c60 hook up arch/ to the make process
Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Stefan Reinauer <stepan@coresystems.de>


git-svn-id: svn://coreboot.org/repository/LinuxBIOSv3@53 f3766cd6-281f-0410-b1cd-43a5c92072e9
2006-12-04 10:06:20 +00:00