Commit Graph

15049 Commits

Author SHA1 Message Date
Gabe Black
36b2409a3d x86: Wrap small helper functions from libgcc to avoid an ABI mismatch
When gcc compiles some 64 bit operations on a 32 bit machine, it generates
calls to small functions instead of instructions which do the job directly.
Those functions are defined in libgcc and transparently provide whatever
functionality was necessary. Unfortunately, u-boot can be built with a
non-standard ABI when libgcc isn't. More specifically, u-boot uses
-mregparm. When the u-boot and libgcc are linked together, very confusing
bugs can crop up, for instance seemingly normal integer division or modulus
getting the wrong answer or even raising a spurious divide by zero
exception.

This change borrows (steals) a technique and some code from coreboot which
solves this problem by creating wrappers which translate the calling
convention when calling the functions in libgcc. Unfortunately that means
that these instructions which had already been turned into functions have
even more overhead, but more importantly it makes them work properly.

To find all of the functions that needed wrapping, u-boot was compiled
without linking in libgcc. All the symbols the linker complained were
undefined were presumed to be the symbols that are needed from libgcc.
These were a subset of the symbols covered by the coreboot code, so it was
used unmodified.

To prevent symbols which are provided by libgcc but not currently wrapped
(or even known about) from being silently linked against by code generated
by libgcc, a new copy of libgcc is created where all the symbols are
prefixed with __normal_. Without being purposefully wrapped, these symbols
will cause linker errors instead of silently introducing very subtle,
confusing bugs.

Another approach would be to whitelist symbols from libgcc and strip out
all the others. The problem with this approach is that it requires the
white listed symbols to be specified three times, once for objcopy, once so
the linker inserts the wrapped, and once to generate the wrapper itself,
while this implementation needs it to be listed only twice. There isn't
much tangible difference in what each approach produces, so this one was
preferred.

Signed-off-by: Gabe Black <gabeblack@chromium.org>
2011-11-29 21:31:24 +11:00
Gabe Black
dbaef6ef33 x86: Import the glibc memset implementation
The new implementation is about twice as fast as the old. This is from
glibc-2.14, sysdeps/i386/memset.c.

Signed-off-by: Gabe Black <gabeblack@chromium.org>
2011-11-29 21:31:17 +11:00
Gabe Black
60a9b6bfdd x86: Fix a few recently added bugs
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Signed-off-by: Graeme Russ <graeme.russ@gmail.com>
2011-11-29 21:30:51 +11:00
Gabe Black
769db03a4a x86: Don't relocate symbols which point to things that aren't relocated
This change adds an upper bound for symbols which are fixed up after u-boot
is relocated into RAM. This way portions that are left at their original
location can be referred to without having to manually fix up any pointers.

Signed-off-by: Gabe Black <gabeblack@chromium.org>
2011-11-29 21:30:44 +11:00
Gabe Black
03228b26d5 x86: Fix how the location of the realmode and bios blobs are calculated
There are two blobs embedded into the u-boot image which are linked to run
at an address which is different from where they actually end up in the
ROM, one called "realmode" and one called "bios". There are realmode_setup
and bios_setup functions which prepare those blobs by copying them into the
location they're supposed to run from, among other things.

During u-boot relocation from ROM to RAM, the text and a few data segments
are copied over. The realmode and bios sections are not copied, and so the
only place they can be read from is their original location in the ROM.
Looking specifically at the bios blob, there are symbols defined in the
linker script called __bios_start and __bios_size which are defined to be
the start and size of the blob in the ROM.

In the bios_setup function, there seem to be two mistakes happening. First,
the offset from ROM to RAM is being added to __bios_start which implies that
this code expects to use the copy moved to RAM. No such copy is made, so
that's wrong. More subtly, when u-boot relocates itself, it goes through
all of the relocations stored in .rel.dyn and fixes them up. This has the
effect of transforming the __bios_start reference in bios_setup so that it
refers to the version in RAM (if one existed) instead of the one in ROM. To
correct for that, the offset actually needs to be subtracted out again to
translate the address back into the ROM.

The net effect is that for both blobs, a + needs to be changed to a -.

Signed-off-by: Gabe Black <gabeblack@chromium.org>
2011-11-29 21:30:38 +11:00
Graeme Russ
2f0e0cd246 x86: Misc cleanups
Signed-off-by: Graeme Russ <graeme.russ@gmail.com>
2011-11-29 21:10:12 +11:00
Graeme Russ
1cfcf03701 x86: Misc PCI touchups
Signed-off-by: Graeme Russ <graeme.russ@gmail.com>
2011-11-29 21:10:08 +11:00
Graeme Russ
303418cc97 x86: Ensure IDT and GDT remain 16-byte aligned post relocation
Some CPUs have strict alignment requirements for these tables

Signed-off-by: Graeme Russ <graeme.russ@gmail.com>
2011-11-29 21:10:01 +11:00
Graeme Russ
a76fc70ee1 x86: Provide more configuration granularity
Planned future ports requires more granularity for some options

Signed-off-by: Graeme Russ <graeme.russ@gmail.com>
2011-11-29 21:09:52 +11:00
Graeme Russ
a206cc2343 x86: Add multiboot header
By adding a multiboot header, U-Boot can be loaded by GRUB2. Using GRUB2 to
bootstrap U-Boot is useful for using an existing BIOS to get an initial
U-Boot port up and running before implementing the low-level reset vector
code, SDRAM init, etc. and overwriting the BIOS

Signed-off-by: Graeme Russ <graeme.russ@gmail.com>
2011-11-29 21:08:02 +11:00
Graeme Russ
311b1a2b38 sc520: Create arch asm-offsets
Signed-off-by: Graeme Russ <graeme.russ@gmail.com>
2011-11-29 21:07:42 +11:00
Graeme Russ
facc9e7bf4 x86: Punt cold- and warm-boot flags
Nobody uses them anyway

Signed-off-by: Graeme Russ <graeme.russ@gmail.com>
Acked-by: Mike Frysinger <vapier@gentoo.org>
2011-11-29 21:04:06 +11:00
Graeme Russ
63a90bfb7e cosmetic: checkpatch cleanup of board/eNET/*.c
Signed-off-by: Graeme Russ <graeme.russ@gmail.com>
2011-11-29 21:04:00 +11:00
Graeme Russ
83088afbba cosmetic: checkpatch cleanup of arch/x86/lib/*.c
Signed-off-by: Graeme Russ <graeme.russ@gmail.com>
2011-11-29 21:03:43 +11:00
Graeme Russ
01a0f5a1eb cosmetic: checkpatch cleanup of arch/x86/cpu/sc520/*.c
Signed-off-by: Graeme Russ <graeme.russ@gmail.com>
2011-11-29 21:01:26 +11:00
Graeme Russ
717979fdd7 cosmetic: checkpatch cleanup of arch/x86/cpu/*.c
Signed-off-by: Graeme Russ <graeme.russ@gmail.com>
2011-11-29 21:01:21 +11:00
Graeme Russ
6d7404c4c1 x86: Call hang() on unrecoverable exception
Signed-off-by: Graeme Russ <graeme.russ@gmail.com>
2011-11-29 21:01:13 +11:00
Wolfgang Denk
a63d965275 menu.c: use puts() instead of printf() where possible
common/menu.c used printf() in a number of places to print user
provided, constant strings (like the "title" string).  printf() is
dangerous here for example in case the user unwittingly embeds some
'%' caracters that printf() would interpret as formatting and then
pick up random arguments.  Use puts() instead.

We also omit the trailing ':' in the title line - if a user wants
this, he can provide it as part of the title string.

Signed-off-by: Wolfgang Denk <wd@denx.de>
2011-11-28 20:19:41 +01:00
Wolfgang Denk
68435fa151 Merge branch 'agust@denx.de' of git://git.denx.de/u-boot-staging
* 'agust@denx.de' of git://git.denx.de/u-boot-staging:
  MAKEALL: drop obsolete mx31pdk_nand target
  dataflash: fix parameters order in write_dataflash()
  hawkboard: Replace HAWKBOARD_KICK{0, 1}_UNLOCK defines
  davinci_sonata: define CONFIG_MACH_TYPE for davinci_sonata board
  davinci_schmoogie: define CONFIG_MACH_TYPE for davinci_schmoogie board
  arm: a320evb: define mach-type in board config file
  OMAP3: Use sdelay from arch/arm/cpu/armv7/syslib.c instead of cloning that.
  Fix Stelian's email address
2011-11-28 19:57:38 +01:00
Wolfgang Denk
d5251742a7 Merge branch 'master' of git://git.denx.de/u-boot-video
* 'master' of git://git.denx.de/u-boot-video:
  DIU: 1080P and 720P support
  CFB: Fix font rendering on mx5 framebuffer
2011-11-28 19:53:31 +01:00
Stefano Babic
623e03256e MAKEALL: drop obsolete mx31pdk_nand target
The mx31pdk can boot only from NAND and the target was
already updated in boards.cfg. mx31pdk_nand is obsolete
and is dropped.

Signed-off-by: Stefano Babic <sbabic@denx.de>
2011-11-27 23:45:02 +01:00
Igor Grinberg
85be1e21fc dataflash: fix parameters order in write_dataflash()
Fix parameters order in write_dataflash() function extern declaration in
the header file.
Parameters order, as in function definition, should be:
addr_dest, addr_src, size.

Signed-off-by: Igor Grinberg <grinberg@compulab.co.il>
2011-11-27 19:46:27 +01:00
Christian Riesch
e722d5d076 hawkboard: Replace HAWKBOARD_KICK{0, 1}_UNLOCK defines
This patch replaces the HAWKBOARD_KICK{0,1}_UNLOCK defines by
DV_SYSCFG_KICK{0,1}_UNLOCK.

The kick register values are not hawkboard specific but may be used
for all davinci boards. In commit f3c149d6c6
new defines for these values wer introduced.

Signed-off-by: Christian Riesch <christian.riesch@omicron.at>
Cc: Syed Mohammed Khasim <sm.khasim@gmail.com>
Cc: Sughosh Ganu <urwithsughosh@gmail.com>
Cc: Sandeep Paulraj <s-paulraj@ti.com>
2011-11-27 19:45:35 +01:00
Christian Riesch
f880fe5794 davinci_sonata: define CONFIG_MACH_TYPE for davinci_sonata board
This patch fixes the build breakage for the davinci_sonata board.

Signed-off-by: Christian Riesch <christian.riesch@omicron.at>
Cc: Sergey Kubushyn <ksi@koi8.net>
Cc: Sandeep Paulraj <s-paulraj@ti.com>
2011-11-27 19:45:27 +01:00
Christian Riesch
ece91e3026 davinci_schmoogie: define CONFIG_MACH_TYPE for davinci_schmoogie board
This patch fixes the build breakage for the davinci_schmoogie board.

Signed-off-by: Christian Riesch <christian.riesch@omicron.at>
Cc: Sergey Kubushyn <ksi@koi8.net>
Cc: Sandeep Paulraj <s-paulraj@ti.com>
2011-11-27 19:45:19 +01:00
Yan-Pai Chen
641483af40 arm: a320evb: define mach-type in board config file
MACH_TYPE_FARADAY was dropped from mach-types.h. Add it back to
board config file.

Signed-off-by: Yan-Pai Chen <ypchen@faraday-tech.com>
Acked-by: Igor Grinberg <grinberg@compulab.co.il>
2011-11-27 19:44:49 +01:00
Alexander Holler
a67fe5f284 OMAP3: Use sdelay from arch/arm/cpu/armv7/syslib.c instead of cloning that.
There is no need to have such a function twice.

Signed-off-by: Alexander Holler <holler@ahsoftware.de>
Acked-by: Dirk Behme <dirk.behme@googlemail.com>
Signed-off-by: Anatolij Gustschin <agust@denx.de>
2011-11-27 19:44:36 +01:00
Stelian Pop
762e63754b Fix Stelian's email address
Change my old email address which is no longer valid.

Signed-off-by: Stelian Pop <stelian@popies.net>
Signed-off-by: Anatolij Gustschin <agust@denx.de>
2011-11-27 19:44:21 +01:00
Wolfgang Denk
99258c3410 Merge branch 'master' of git://git.denx.de/u-boot-mmc
* 'master' of git://git.denx.de/u-boot-mmc:
  Revert "mmc: retry the cmd8 to meet 74 clocks requirement in the spec"
  mmc: mv_sdhci: Fix host version read for Armada100
2011-11-27 16:03:21 +01:00
Stephan Linz
1de55ef105 microblaze: usable uart16550 for big endian systems
As a result of the commit 6833260 the uart16550 driver
is broken for Microblaze big endian systems, because of
the missing 3 byte offset. Other than as described, not
all U-Boot BSP will treat properly the 3 byte offset.

This why prefer to mask out the 3 byte offset in general
and setup correct _REG_SIZE value depending on edianess.

Signed-off-by: Stephan Linz <linz@li-pro.net>
Tested-by: Michal Simek <monstr@monstr.eu>
2011-11-27 15:49:48 +01:00
Michael Jones
94f6142957 mvblx: punt unused clean/distclean targets
Signed-off-by: Michael Jones <michael.jones@matrix-vision.de>
2011-11-27 15:48:33 +01:00
Kumar Gala
068f158fdf cmd_nvedit.c: Fix compiler warning introduced by checkpatch cleanup
cmd_nvedit.c: In function 'do_env_grep':
cmd_nvedit.c:182:3: warning: suggest parentheses around assignment used as truth value

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Acked-by: Mike Frysinger <vapier@gentoo.org>
Acked-by: Igor Grinberg <grinberg@compulab.co.il>
2011-11-27 15:46:10 +01:00
Kumar Gala
d90a5b1ed1 drivers/bios_emulator/x86emu/ops2.c: Fix GCC 4.6 build warning
Fix:

x86emu/ops2.c: In function 'x86emuOp2_set_byte':
x86emu/ops2.c:171:11: warning: variable 'name' set but not used [-Wunused-but-set-variable]

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2011-11-27 15:45:47 +01:00
Mike Frysinger
ca8a30ec6a ignore new mkenvimage tool
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-11-27 15:44:41 +01:00
Macpaul Lin
afd5932b2c Revert "mmc: retry the cmd8 to meet 74 clocks requirement in the spec"
This reverts commit 02f3029f18.

This patch add 3 times retry to CMD8 because the Marvell mmc controller
doesn't obey the power ramp up process in the SD specification 6.4.1.
(Please refer to figure 6.1 and 6.2 in the specification.)

The CMD0 should be send after power ramp up has been finished.
However, the Marvell mmc contorller must do power ramp up after the
first CMD0 command has been send.

This patch also affect existing platforms like Nokia N900 and other
platforms.

Signed-off-by: Macpaul Lin <macpaul@andestech.com>
Acked-by: Lei Wen <leiwen@marvell.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Tested-by: Stephen Warren <swarren@nvidia.com>
2011-11-25 17:43:05 -06:00
Ajay Bhargav
5af9a56999 mmc: mv_sdhci: Fix host version read for Armada100
sdhci_readw does not work for host version read in Armada100 series
SoCs. This patch fix this issue by making a sdhci_readl call to get host
version.

Signed-off-by: Ajay Bhargav <ajay.bhargav@einfochips.com>
2011-11-25 17:43:05 -06:00
Jerry Huang
d8bf22bb0e DIU: 1080P and 720P support
Add the 1920x1080 and 1280x720 resolution support.

Signed-off-by: Jerry Huang <Chang-Ming.Huang@freescale.com>
Acked-by: Timur Tabi <timur@freescale.com>
CC: Anatolij Gustschin <agust@denx.de>
2011-11-24 22:59:51 +01:00
Marek Vasut
e6bbe53da0 CFB: Fix font rendering on mx5 framebuffer
Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
Cc: Anatolij Gustschin <agust@denx.de>
Cc: Stefano Babic <sbabic@denx.de>
2011-11-24 22:55:15 +01:00
Wolfgang Denk
fdbe8b9a2d Merge branch 'hs@denx.de' of git://git.denx.de/u-boot-staging
* 'hs@denx.de' of git://git.denx.de/u-boot-staging:
  drivers/net/dnet.c: Fix GCC 4.6 warnings
  board/xaeniax/flash.c: Fix GCC 4.6 warnings
  net/bootp.c: Fix GCC 4.6 warning
  common/cmd_bootm.c: Fix GCC 4.6 warnings
  board/mx1ads/mx1ads.c: Fix GCC 4.6 warning
  board/mx1ads/syncflash.c: Fix GCC 4.6 warnings
  board/lubbock/flash.c: Fix GCC 4.6 warnings
  drivers/net/cs8900.c: Fix GCC 4.6 warning
  arch/arm/cpu/arm926ejs/omap/cpuinfo.c: Fix GCC 4.6 warnings
  drivers/net/lan91c96.c: Fix GCC 4.6 warning
  board/ronetix/pm9263/pm9263.c: Fix GCC 4.6 warning
  drivers/mtd/onenand/samsung.c: Fix GCC 4.6 warning
  drivers/usb/musb/musb_hcd.c: Fix GCC 4.6 warning
2011-11-23 21:23:45 +01:00
Anatolij Gustschin
bd0f5ca806 drivers/i2c/davinci_i2c.c: Fix GCC 4.6 warning
Fix:
davinci_i2c.c: In function 'flush_rx':
davinci_i2c.c:81:6: warning: variable 'dummy' set but not used
[-Wunused-but-set-variable]

Signed-off-by: Anatolij Gustschin <agust@denx.de>
Acked-by: Heiko Schocher <hs@denx.de>
2011-11-23 21:22:39 +01:00
Heiko Schocher
7d5ff54fde i2c: Codingstyle cleanup for i2c evb64260 board driver
There are some magic constants in this drivers, which I cannot
fixup ... Eran, can you help here?

Signed-off-by: Heiko Schocher <hs@denx.de>
Cc: Eran Man <eran@nbase.co.il>
2011-11-23 21:22:32 +01:00
Nobuhiro Iwamatsu
3dab3e0e67 i2c: sh: Add support I2C for Renesas SH
This supports I2C of Renesas SH.
I tested on SH7724.

Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
CC: Heiko Schocher <hs@denx.de>
2011-11-23 21:22:26 +01:00
Anatolij Gustschin
d780e74fc3 drivers/net/dnet.c: Fix GCC 4.6 warnings
Fix:
dnet.c: In function 'dnet_send':
dnet.c:136:9: warning: variable 'len' set but not used
[-Wunused-but-set-variable]
dnet.c: In function 'dnet_set_hwaddr':
dnet.c:209:2: warning: dereferencing type-punned pointer will
break strict-aliasing rules [-Wstrict-aliasing]
dnet.c:209:2: warning: dereferencing type-punned pointer will
break strict-aliasing rules [-Wstrict-aliasing]
dnet.c:209:2: warning: dereferencing type-punned pointer will
break strict-aliasing rules [-Wstrict-aliasing]
dnet.c:209:2: warning: dereferencing type-punned pointer will
break strict-aliasing rules [-Wstrict-aliasing]

Signed-off-by: Anatolij Gustschin <agust@denx.de>
2011-11-23 08:33:57 +01:00
Anatolij Gustschin
bf1d6440a2 board/xaeniax/flash.c: Fix GCC 4.6 warnings
Fix:
flash.c: In function 'flash_erase':
flash.c:223:6: warning: variable 'flag' set but not used
[-Wunused-but-set-variable]
flash.c: In function 'write_data':
flash.c:392:6: warning: variable 'flag' set but not used
[-Wunused-but-set-variable]

Signed-off-by: Anatolij Gustschin <agust@denx.de>
2011-11-23 08:32:16 +01:00
Anatolij Gustschin
c0fe04bf65 net/bootp.c: Fix GCC 4.6 warning
Fix:
bootp.c: In function 'BootpCopyNetParams':
bootp.c:108:11: warning: unused variable 'tmp_ip' [-Wunused-variable]

Signed-off-by: Anatolij Gustschin <agust@denx.de>
2011-11-23 08:25:50 +01:00
Anatolij Gustschin
5bf2766b4b common/cmd_bootm.c: Fix GCC 4.6 warnings
Fix:
cmd_bootm.c: In function 'bootm_load_os':
cmd_bootm.c:315:7: warning: unused variable 'unc_len'
[-Wunused-variable]

Signed-off-by: Anatolij Gustschin <agust@denx.de>
2011-11-23 08:14:27 +01:00
Anatolij Gustschin
5076c7ab71 board/mx1ads/mx1ads.c: Fix GCC 4.6 warning
Fix:
mx1ads.c: In function 'board_early_init_f':
mx1ads.c:83:24: warning: variable 'tmp' set but not used
[-Wunused-but-set-variable]

Signed-off-by: Anatolij Gustschin <agust@denx.de>
2011-11-23 08:14:27 +01:00
Anatolij Gustschin
6859ea740e board/mx1ads/syncflash.c: Fix GCC 4.6 warnings
Fix:
syncflash.c: In function 'SF_SR':
syncflash.c:60:10: warning: variable 'tmp1' set but not used
[-Wunused-but-set-variable]
syncflash.c: In function 'SF_PrechargeAll':
syncflash.c:96:6: warning: variable 'tmp' set but not used
[-Wunused-but-set-variable]
mx1ads.c: In function 'board_early_init_f':
mx1ads.c:83:24: warning: variable 'tmp' set but not used
[-Wunused-but-set-variable]
syncflash.c: In function 'SF_Erase':
syncflash.c:112:6: warning: variable 'tmp' set but not used
[-Wunused-but-set-variable]
syncflash.c: In function 'flash_init':
syncflash.c:155:6: warning: variable 'tmp' set but not used
[-Wunused-but-set-variable]

Signed-off-by: Anatolij Gustschin <agust@denx.de>
2011-11-23 08:14:27 +01:00
Anatolij Gustschin
90729c0238 board/lubbock/flash.c: Fix GCC 4.6 warnings
Fix:
flash.c: In function 'flash_erase':
flash.c:223:6: warning: variable 'flag' set but not used [-Wunused-but-set-variable]
flash.c: In function 'write_data':
flash.c:392:6: warning: variable 'flag' set but not used [-Wunused-but-set-variable]

Signed-off-by: Anatolij Gustschin <agust@denx.de>
2011-11-23 08:14:27 +01:00
Anatolij Gustschin
da227355bf drivers/net/cs8900.c: Fix GCC 4.6 warning
Fix:
cs8900.c: In function 'get_reg_init_bus':
cs8900.c:69:14: warning: variable 'c' set but not used
[-Wunused-but-set-variable]

Signed-off-by: Anatolij Gustschin <agust@denx.de>
2011-11-23 08:14:27 +01:00