Commit graph

58 commits

Author SHA1 Message Date
Ingo van Lil
3eb90bad65 Generic udelay() with watchdog support
According to the PPC reference implementation the udelay() function is
responsible for resetting the watchdog timer as frequently as needed.
Most other architectures do not meet that requirement, so long-running
operations might result in a watchdog reset.

This patch adds a generic udelay() function which takes care of
resetting the watchdog before calling an architecture-specific
__udelay().

Signed-off-by: Ingo van Lil <inguin@gmx.de>
2009-12-05 01:08:53 +01:00
Kumar Gala
d72871e138 arm: Remove -fno-strict-aliasing
-fno-strict-aliasing is hidding warnings.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2009-09-04 22:15:53 +02:00
Wolfgang Denk
f772acf8a5 ARM: compiler options cleanup - improve tool chain support
For some time there have been repeated reports about build problems
with some ARM (cross) tool chains.  Especially issues about
(in)compatibility with the tool chain provided runtime support
library libgcc.a caused to add and support a private implementation
of such runtime support code in U-Boot.  A closer look at the code
indicated that some of these issues are actually home-made.  This
patch attempts to clean up some of the most obvious problems and make
building of U-Boot with different tool chains easier:

- Even though all ARM systems basicy used the same compiler options
  to select a specific ABI from the tool chain, the code for this was
  distributed over all cpu/*/config.mk files.  We move this one level
  up into lib_arm/config.mk instead.

- So far, we only checked if "-mapcs-32" was supported by the tool
  chain; if yes, this was used, if not, "-mabi=apcs-gnu" was
  selected, no matter if the tool chain actually understood this
  option.  There was no support for EABI conformant tool chains.
  This patch implements the following logic:

  1) If the tool chain supports
	"-mabi=aapcs-linux -mno-thumb-interwork"
     we use these options (EABI conformant tool chain).
  2) Otherwise, we check first if
	"-mapcs-32"
     is supported, and then check for
	"-mabi=apcs-gnu"
     If one test succeeds, we use the first found option.
  3) In case 2), we also test if "-mno-thumb-interwork", and use
     this if the test succeeds. [For "-mabi=aapcs-linux" we set
     "-mno-thumb-interwork" mandatorily.]

  This way we use a similar logic for the compile options as the
  Linux kernel does.

- Some EABI conformant tool chains cause external references to
  utility functions like raise(); such functions are provided in the
  new file lib_arm/eabi_compat.c

  Note that lib_arm/config.mk gets parsed several times, so we must
  make sure to add eabi_compat.o only once to the linker list.

Signed-off-by: Wolfgang Denk <wd@denx.de>
Cc: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Cc: Dirk Behme <dirk.behme@googlemail.com>
Cc: Magnus Lilja <lilja.magnus@gmail.com>
Cc: Tom Rix <Tom.Rix@windriver.com>
Cc: Prafulla Wadaskar <prafulla@marvell.com>
Acked-by: Sergey Kubushyn <ksi@koi8.net>
Tested-by: Magnus Lilja <lilja.magnus@gmail.com>
Tested-by: Andrzej Wolski <awolski@poczta.fm>
Tested-by: Gaye Abdoulaye Walsimou <walsimou@walsimou.com>
Tested-by: Tom Rix <Tom.Rix@windriver.com>
Tested-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
2009-08-21 23:11:53 +02:00
Jean-Christophe PLAGNIOL-VILLARD
ad7e8aac69 arm: remove cpu_init
move s3c44b0 to arch_cpu_init and as noone use cpu_init remove it

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
2009-06-12 20:39:52 +02:00
Jean-Christophe PLAGNIOL-VILLARD
c358d9c3f1 arm: unify interrupt init
all arm init the IRQ stack the same way
so unify it in lib_arm/interrupts.c and then call arch specific interrupt init

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
2009-06-12 20:39:52 +02:00
Jean-Christophe PLAGNIOL-VILLARD
10a451cd57 arm: unify linker script
all arm boards except a few use the same cpu linker script
so move it to cpu/$(CPU)

that could be overwrite in following order
SOC
BOARD
via the corresponding config.mk

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
2009-06-12 20:39:52 +02:00
Jean-Christophe PLAGNIOL-VILLARD
b54384e3ba arm: timer and interrupt init rework
actually the timer init use the interrupt_init as init callback
which make the interrupt and timer implementation difficult to follow

so now rename it as int timer_init(void) and use interrupt_init for interrupt

btw also remane the corresponding file to the functionnality implemented

as ixp arch implement two timer - one based on interrupt - so all the timer
related code is moved to timer.c

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
2009-06-12 20:39:48 +02:00
Wolfgang Denk
712ac6a1a6 Merge branch 'master' of git://git.denx.de/u-boot-arm 2009-04-05 23:04:30 +02:00
Jean-Christophe PLAGNIOL-VILLARD
ab29823151 arm: unify reset command
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
2009-04-05 13:08:03 +02:00
Jean-Christophe PLAGNIOL-VILLARD
b3acb6cd40 arm: clean cache management
unify arm cache management except for non standard cache as ARM7TDMI

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
2009-04-05 13:06:31 +02:00
Jean-Christophe PLAGNIOL-VILLARD
677e62f432 arm: update co-processor 15 access
import system.h from linux

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
2009-04-05 13:02:43 +02:00
Wolfgang Denk
c0a14aedc3 Update CHANGELOG, coding style cleanup. 2009-04-05 00:27:57 +02:00
Jean-Christophe PLAGNIOL-VILLARD
a6ef3ddeaf arm720t/clps7111: move serial driver to drivers/serial
add CONFIG_CLPS7111_SERIAL to activate the driver

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
2009-03-29 23:01:42 +02:00
Jean-Christophe PLAGNIOL-VILLARD
6790c55704 lpc2292: move serial driver to drivers/serial
add CONFIG_LPC2292_SERIAL to activate the driver

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
2009-03-29 23:01:42 +02:00
Jean-Christophe PLAGNIOL-VILLARD
9ea91c9fef netarm: move serial driver to drivers/serial
add CONFIG_NETARM_SERIAL to activate the driver

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
2009-03-29 23:01:41 +02:00
Jean-Christophe PLAGNIOL-VILLARD
281dfb0c0c s3c4510b: move specific code to soc directory
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
2009-03-29 23:01:36 +02:00
Andy Fleming
abb5466ccf Convert mmc_init to mmc_legacy_init
This is to get it out of the way of incoming MMC framework

Signed-off-by: Andy Fleming <afleming@freescale.com>
2009-02-16 18:07:40 -06:00
Andy Fleming
b2e2ed0233 Eliminate support for using MMC as memory
MMC cards are not memory, so we stop treating them that way.

Signed-off-by: Andy Fleming <afleming@freescale.com>
2009-02-16 18:07:40 -06:00
Sergei Poselenov
0e0c862efe Remove compiler warning: target CPU does not support interworking
This warning is issued by modern ARM-EABI GCC on non-thumb targets.

Signed-off-by: Vladimir Panfilov <pvr@emcraft.com>
Signed-off-by: Sergei Poselenov <sposelenov@emcraft.com>
2008-12-13 23:41:23 +01:00
Jean-Christophe PLAGNIOL-VILLARD
6d0f6bcf33 rename CFG_ macros to CONFIG_SYS
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
2008-10-18 21:54:03 +02:00
Wolfgang Denk
53677ef18e Big white-space cleanup.
This commit gets rid of a huge amount of silly white-space issues.
Especially, all sequences of SPACEs followed by TAB characters get
removed (unless they appear in print statements).

Also remove all embedded "vim:" and "vi:" statements which hide
indentation problems.

Signed-off-by: Wolfgang Denk <wd@denx.de>
2008-05-21 00:14:08 +02:00
Andreas Engel
6d0943a6be ARM: cleanup duplicated exception handlingcode
Move duplicated exception handling code into lib_arm.

Signed-off-by: Andreas Engel <andreas.engel@ericsson.com>
2008-02-14 09:38:21 +00:00
Jean-Christophe PLAGNIOL-VILLARD
86ec86c043 Fix missing DECLARE_GLOBAL_DATA_PTR on CONFIG_LPC2292 in serial
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
2007-09-28 01:08:38 +02:00
Wolfgang Denk
1218abf1b5 Fix cases where DECLARE_GLOBAL_DATA_PTR was not declared as global
Signed-off-by: Wolfgang Denk <wd@denx.de>
2007-09-15 20:48:41 +02:00
Peter Pearse
160131bf96 Add the files for the SMN42 board 2007-05-09 11:41:58 +01:00
Wolfgang Denk
f8db84f132 LPC2292 SODIMM port coding style cleanup. 2007-01-30 00:50:40 +01:00
Gary Jennejohn
6bd2447ee4 Add port for the lpc2292sodimm evaluation board from EmbeddedArtists 2007-01-24 12:16:56 +01:00
Wolfgang Denk
2b208f5308 Move "ar" flags to config.mk to allow for silent "make -s"
Based on patch by Mike Frysinger, 20 Jun 2006
2006-10-09 01:02:05 +02:00
Marian Balakowicz
f93286397e Add support for a saving build objects in a separate directory.
Modifications are based on the linux kernel approach and
support two use cases:

  1) Add O= to the make command line
  'make O=/tmp/build all'

  2) Set environement variable BUILD_DIR to point to the desired location
  'export BUILD_DIR=/tmp/build'
  'make'

The second approach can also be used with a MAKEALL script
'export BUILD_DIR=/tmp/build'
'./MAKEALL'

Command line 'O=' setting overrides BUILD_DIR environent variable.

When none of the above methods is used the local build is performed and
the object files are placed in the source directory.
2006-09-01 19:49:50 +02:00
Wolfgang Denk
d87080b721 GCC-4.x fixes: clean up global data pointer initialization for all boards. 2006-03-31 18:32:53 +02:00
Wolfgang Denk
3df5bea0b0 Add support for NetSilicon NS7520 processor.
Patch by Art Shipkowski, 12 May 2005

Cleanup.
2005-10-09 01:41:48 +02:00
Wolfgang Denk
96782c63d3 Cleanup warnings for cpu/arm720t & cpu/arm1136 files.
sed the linker scripts, rather than pre-process them.
Patch by Peter Pearse, 07 Oct 2005
2005-10-09 00:22:48 +02:00
Wolfgang Denk
87cb6862b9 Update make target for ARM supported boards.
Use lowlevel_init() instead of platformsetup() [rename].
Patch by Peter Pearse, 06 Oct 2005
2005-10-06 17:08:18 +02:00
Wolfgang Denk
9b880bd4d8 Update ARM Integrator boards:
Correct addessing errors in platform files.
Split off common core module data from Integrator header files to
include/armcoremodule.h.
Patch by Peter Pearse, 04 Oct 2005
2005-10-04 23:10:28 +02:00
Wolfgang Denk
1820d4c73b Make sure only supported compiler options are used
Import "cc-option" shell function from kernel and
use it to get the correct ARM GCC options for individual CPUs
Patch by Peter Pearse, 30 Jun 2005
2005-10-04 22:38:24 +02:00
Wolfgang Denk
c570b2fdf5 Add board support for armadillo HT1070
Patch by Rowel Atienza, 06 Apr 2005
2005-09-26 01:06:33 +02:00
wdenk
8aa1a2d115 Patch by Steven Scholz, 4 Apr 2005:
- remove all references to CONFIG_INIT_CRITICAL for ARM based boards
- introduce two new configuration options instead:
  CONFIG_SKIP_LOWLEVEL_INIT and CONFIG_SKIP_RELOCATE_UBOOT
2005-04-04 12:44:11 +00:00
wdenk
101e8dfa2a Fix timer code for ARM systems: make sure that udelay() does not
reset timers so it's save to use udelay() in timeout code.
2005-04-04 12:08:28 +00:00
wdenk
3ec924a3cb Patch by Steven Scholz, 25 Oct 2004:
Declare reset_cpu() in include/common.h instead locally
2005-04-03 17:23:39 +00:00
wdenk
400558b561 Prepare for SoC rework of ARM code:
- rename CONFIG_BOOTBINFUNC into  CONFIG_INIT_CRITICAL
- rename memsetup into lowlevel_init (function name and source files)
2005-04-02 23:52:25 +00:00
wdenk
a1191902ca * Patch by Jon Loeliger, 02 Sep 2004:
Reset monitor size back to 256 so environment can be written
  to flash on MPC85xx ADS and CDS releases.

* Patch by Paolo Broggini, 02 Sep 2004:
  Make BSS clearing on ARM systems more robust

* Patch by Yue Hu and Joe, 01 Sep 2004:
  - add PCI support for ixp425;
  - add EEPRO100 suppor tfor ixdp425 board.

* Fix problem with protected sector detection in driver/cfi_flash.c
2005-01-09 17:12:27 +00:00
wdenk
e86e5a0748 Code cleanup for GCC-3.3.x compilers 2004-10-17 21:12:06 +00:00
wdenk
281e00a3be * Code cleanup
* Patch by Sascha Hauer, 28 Jun:
  - add generic support for Motorola i.MX architecture
  - add support for mx1ads, mx1fs2 and scb9328 boards

* Patches by Marc Leeman, 23 Jul 2004:
  - Add define for the PCI/Memory Buffer Configuration Register
  - corrected comments in cpu/mpc824x/cpu_init.c

* Add support for multiple serial interfaces
  (for example to allow modem dial-in / dial-out)
2004-08-01 22:48:16 +00:00
wdenk
cdc7fea173 Patch by Curt Brune, 07 Jul 2004:
relocate exception vectors on arm720t if needed
2004-07-11 22:27:55 +00:00
wdenk
a1f4a3dd05 * Patch by George G. Davis, 06 Jul 2004:
- update mach-types.h to latest arm.linux.org.uk master list
  - Set correct OMAP1610 bi_arch_number for build target

* Patch by Curt Brune, 06 Jul 2004:
  evb4510: add support for timer interrupt; cleanup
2004-07-11 22:19:26 +00:00
wdenk
39539887ea * Code cleanup (ARM mostly)
* Patch by Curt Brune, 17 May 2004:
  - Add support for Samsung S3C4510B CPU (ARM7tdmi based SoC)
  - Add support for ESPD-Inc. EVB4510 Board
2004-07-01 16:30:44 +00:00
wdenk
356a0d9f31 Patch by Markus Pietrek, 04 May 2004:
Fix clear_bss code for ARM systems (all except s3c44b0 which
doesn't clear BSS at all?)
2004-06-09 00:10:59 +00:00
wdenk
cd0a9de68b * Patch by Laurent Mohin, 10 Feb 2004:
Fix buffer overflow in common/usb.c

* Patch by Tolunay Orkun, 10 Feb 2004:
  Add support for Cogent CSB272 board

* Code cleanup
2004-02-23 20:48:38 +00:00
wdenk
2d1a537d87 * Patch by Thomas Elste, 10 Feb 2004:
Add support for NET+50 CPU and ModNET50 board

* Patch by Sam Song, 10 Feb 2004:
  Fix typos in cfi_flash.c

* Patch by Leon Kukovec, 10 Feb 2004
  Fixed long dir entry slot id calculation in get_vfatname

* Patch by Robin Gilks, 10 Feb 2004:
  add "itest" command (operators: -eq, -ne, -lt, -gt, -le, -ge, ==,
  !=, <>, <, >, <=, >=)
2004-02-23 19:30:57 +00:00
wdenk
f6e20fc6ca Patch by Anders Larsen, 09 Jan 2004:
ARM memory layout fixes: the abort-stack is now set up in the
correct RAM area, and the BSS is zeroed out as it should be.

Furthermore, the magic variables 'armboot_end' and 'armboot_end_data'
of the linker scripts are replaced by '__bss_start' and '_end',
resp., which is a further step to eliminate unnecessary differences
between the implementation of the CPU architectures.
2004-02-08 19:38:38 +00:00