Commit graph

121 commits

Author SHA1 Message Date
David Hendricks
8a5ee9ce04 armv7: replace magic constant for romstage location
This replaces 0x02023400 with an SoC-specific Kconfig variable.

Change-Id: I21482d54a1e1fa6c4437c030ddae2b0bb3331551
Signed-off-by: David Hendricks <dhendrix@chromium.org>
Reviewed-on: http://review.coreboot.org/2130
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2013-01-10 23:13:39 +01:00
David Hendricks
1dcb697a24 armv7: add *(.data) back into .romdata section
This doesn't seem to be strictly required (so far), but makes sense.

Change-Id: I18416c427ff886507ae09c7fc1a018baf94af24a
Signed-off-by: David Hendricks <dhendrix@chromium.org>
Reviewed-on: http://review.coreboot.org/2131
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2013-01-10 22:33:13 +01:00
David Hendricks
c82ec0ed33 armv7: update board_init_f function signature
We don't pass arguments when we jump out of assembly code.

Change-Id: Iccf3a6f713e260b08f9ff47e8b542b9e96369166
Signed-off-by: David Hendricks <dhendrix@chromium.org>
Reviewed-on: http://review.coreboot.org/2122
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2013-01-10 20:27:08 +01:00
David Hendricks
8bc10b74dc armv7: delete some unused files
Change-Id: I4601b97cbd7dbfb6ee742b3920d2aac4ac49b958
Signed-off-by: David Hendricks <dhendrix@chromium.org>
Reviewed-on: http://review.coreboot.org/2121
Tested-by: build bot (Jenkins)
Reviewed-by: Hung-Te Lin <hungte@chromium.org>
2013-01-10 12:18:51 +01:00
Stefan Reinauer
2f25d9963e ARMv7: drop __ASSEMBLY__
We moved to using __ASSEMBLER__ years ago since it is set by as.

Change-Id: I60103ba23ebe87be1d0bc63beed0ef5b05eed4f2
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Reviewed-on: http://review.coreboot.org/2111
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Tested-by: build bot (Jenkins)
2013-01-05 01:41:14 +01:00
Stefan Reinauer
6d47cbe758 ARMv7: drop __KERNEL__
It's a bad Linux heritage.. We have no userland in firmware.

Change-Id: Ib19e5ba713078ca37514571213d19f418417b964
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Reviewed-on: http://review.coreboot.org/2108
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2013-01-05 00:32:13 +01:00
Ronald G. Minnich
2485df3897 Flatten the tree
It makes no sense to have directories with one file.

Change-Id: I65ba93dda5e6a4bcc5a7cc049c1378ebf5d6abcd
Signed-off-by: Ronald G. Minnich <rminnich@gmail.com>
Reviewed-on: http://review.coreboot.org/2105
Tested-by: build bot (Jenkins)
Reviewed-by: David Hendricks <dhendrix@chromium.org>
2013-01-04 23:24:15 +01:00
Ronald G. Minnich
fa60de996d Revert "armv7: pass bootblock offset from Kconfig into cbfstool"
This reverts commit ec8d35fe91

We are almost certain that this is not necessary.

Change-Id: I70e94f883be95655da00a0b127ed9ffd7c81c63b
Reviewed-on: http://review.coreboot.org/2104
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Reviewed-by: David Hendricks <dhendrix@chromium.org>
Tested-by: build bot (Jenkins)
2013-01-04 23:11:27 +01:00
Stefan Reinauer
853f4698a8 ARMv7: Make ABI compatible to reference toolchain
Our reference toolchain uses -mabi=aapcs whereas we started
forcing -mabi=aapcs-linux. Drop this to prevent ABI incompatibility.

Also drop -fno-common since that's set in the top level Makefile.inc
already.

Change-Id: I4afdcf5da9a5d86c2f9e5de5c7d523ccd2f5f1e0
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Reviewed-on: http://review.coreboot.org/2103
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2013-01-04 22:14:19 +01:00
Stefan Reinauer
3a8badc265 ARMv7: drop libgcc copy
We accidently checked in some files from libgcc as well as
a Makefile from u-boot and a duplicate implementation of div0.

Drop all those files to reduce the confusion.

Change-Id: I8ff6eabbced6f663813f8cc55f19c81839d03477
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Reviewed-on: http://review.coreboot.org/2102
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2013-01-04 22:13:43 +01:00
Stefan Reinauer
31c36137f9 Clean up ARMv7 architecture Kconfig
There was a misuse of bool that would cause the dcache policy to not be
set up correctly, but instead present options "y" and "n" in the Kconfig
menu.

Also, TINY_BOOTBLOCK was removed a while ago, everything is
TINY_BOOTBLOCK now. Hence remove the option.

Change-Id: I5c28ac828955c69614c7bdaf106f79db51e68723
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Reviewed-on: http://review.coreboot.org/2101
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2013-01-04 19:35:25 +01:00
David Hendricks
10c90d3126 update CFLAGS for armv7
This updates $CFLAGS used for armv7. Most of them were just added
to be consistent with what u-boot does. The important ones here
are -march=armv7-a and -mthumb (to allow 16-bit Thumb instructions).

I removed the hard float support because it got errors and
coreboot should never use floats anyway. We're still having trouble
with enums but I want to see how far it gets with this patch.

Also, put the flags in a form that makes diffs easier to read. It's
almost impossible otherwise.

Finally, move some flags to the architecture Makefile, and
rely on the fact that some are set for all architectures.

Depends-On: I6f730d017391f9ec4401cdfd34931c869df10a9e
Change-Id: Ia8a1ae22959933e06f7b996d1832cea40819f1ff
Signed-off-by: David Hendricks <dhendrix@chromium.org>
Signed-off-by: Ronald G. Minnich <rminnich@gmail.com>
Reviewed-on: http://review.coreboot.org/2075
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2013-01-04 00:48:49 +01:00
David Hendricks
ec8d35fe91 armv7: pass bootblock offset from Kconfig into cbfstool
This replaces a somewhat useless calculation used earlier (which
always evaluated to 0) with an offset to specify the location
of the Coreboot bootblock.

Change-Id: Ib85aaccf138cebeb6bf8aedf82308861206dff48
Signed-off-by: David Hendricks <dhendrix@chromium.org>
Reviewed-on: http://review.coreboot.org/2094
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2013-01-03 06:46:36 +01:00
David Hendricks
8583ac390a armv7: create init.S for early ARMv7 init
The old start.S file did a lot of work and had AP-specific #ifndef's.
The new init.S will eventually contain only bare minimum generic ARM
code for use by the bootblock. Processor-specific stuff and things
that take place later in the boot process should go elsewhere.

Change-Id: I7db0a77ee4bbad1ddecb193ea125d8941a50532b
Signed-off-by: David Hendricks <dhendrix@chromium.org>
Reviewed-on: http://review.coreboot.org/2083
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2013-01-03 06:41:36 +01:00
David Hendricks
6c212ac483 remove obsolete include paths from INCLUDES
Change-Id: I621fd49b1f1b96ef388c61ff1abc2130ad2163a5
Signed-off-by: David Hendricks <dhendrix@chromium.org>
Reviewed-on: http://review.coreboot.org/2082
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2012-12-29 15:35:29 +01:00
David Hendricks
37a8516370 Simplify romstage.ld for armv7
This is still a work-in-progress, but it seems to work better than
before and is less complicated...

Change-Id: I6f730d017391f9ec4401cdfd34931c869df10a9e
Signed-off-by: Ronald G. Minnich <rminnich@gmail.com>
Signed-off-by: David Hendricks <dhendrix@chromium.org>
Reviewed-on: http://review.coreboot.org/2041
Tested-by: build bot (Jenkins)
2012-12-29 15:25:05 +01:00
Patrick Georgi
7a33442159 Remove colors from build system output
While "payload none" is undesirable for instant flashing,
assume that it was a conscious user choice.

(more immediate: jenkins isn't happy with escape sequences)

Change-Id: I9958b34a037b4d10bb7dba893335a63917623a70
Signed-off-by: Patrick Georgi <patrick@georgi-clan.de>
Reviewed-on: http://review.coreboot.org/2055
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2012-12-19 17:00:20 +01:00
Stefan Reinauer
935a942e4a Fix ARMv7 payload handling
cbfstool was called with the wrong parameters

Change-Id: I405d0fd7c84b46da3c98a36fd19ef0034dc175cf
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Reviewed-on: http://review.coreboot.org/2022
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2012-12-12 06:04:45 +01:00
Stefan Reinauer
52db0b9845 WIP: Initial ARMv7 architecture implementation in coreboot
The first ARMv7 CPU we're going to support is the Exynos 5250
used in the Google Snow ChromeBook.

Change-Id: I4de8433bbc6202eb8fef2556a11186a3376d411b
Signed-off-by: David Hendricks <dhendrix@chromium.org>
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Signed-off-by: Ronald G. Minnich <rminnich@gmail.com>
Reviewed-on: http://review.coreboot.org/2004
Tested-by: build bot (Jenkins)
2012-12-08 06:53:19 +01:00
Stefan Reinauer
399486e8fb Unify assembler function handling
Instead of adding regparm(0) to each assembler function called
by coreboot, add an asmlinkage macro (like the Linux kernel does)
that can be different per architecture (and that is  empty on ARM
right now)

Change-Id: I7ad10c463f6c552f1201f77ae24ed354ac48e2d9
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Reviewed-on: http://review.coreboot.org/1973
Reviewed-by: David Hendricks <dhendrix@chromium.org>
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2012-12-06 23:13:17 +01:00
David Hendricks
5367e47ef1 Add dummy Kconfig options for armv7
This adds a dummy config for ARMV7 for developing various
follow-up patches which rely on ARCH_ARMV7.

Change-Id: Id913054d916f41607d10ebc02aaf74082e14b554
Signed-off-by: Hung-Te Lin <hungte@chromium.org>
Signed-off-by: David Hendricks <dhendrix@chromium.org>
Reviewed-on: http://review.coreboot.org/1939
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Tested-by: build bot (Jenkins)
2012-11-30 00:03:37 +01:00