Commit graph

40 commits

Author SHA1 Message Date
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
Detlev Zundel
792a09eb9d Fix e-mail address of Gary Jennejohn.
Signed-off-by: Detlev Zundel <dzu@denx.de>
2009-05-15 22:11:59 +02:00
Wolfgang Denk
0ee7a31047 Update CHANGELOG; minor coding style cleanup.
Signed-off-by: Wolfgang Denk <wd@denx.de>
2009-05-01 00:16:11 +02:00
Ladislav Michl
3791a1187c arm925t: Fix CONFIG_SYS_HZ to 1000
Let CONFIG_SYS_HZ to have value of 1000 effectively fixing all users of
get_timer.

Changes since original version:
* Set PTV=2 (divisor 8) for boards using 12MHz timer clock source to
  improve timer resolution.

Signed-off-by: Ladislav Michl <ladis@linux-mips.org>
2009-04-29 21:39:46 +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
Ladislav Michl
89c00fb158 OMAP: use {read,write}l to access timer registers
Signed-off-by: Ladislav Michl <ladis@linux-mips.org>
2009-03-30 18:58:41 +02:00
Ladislav Michl
81472d893f OMAP: rename timer divisor
Divisor field is called PTV not PVT.

Signed-off-by: Ladislav Michl <ladis@linux-mips.org>
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
2009-03-30 18:58:41 +02:00
Ladislav Michl
fe672d60b2 OMAP: reindent timer code
Signed-off-by: Ladislav Michl <ladis@linux-mips.org>
2009-03-30 18:58:40 +02:00
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
Stefan Roese
fae684e898 [PATCH] omap925.c: Remove unused functions
Signed-off-by: Ladislav Michl <ladis@linux-mips.org>
Signed-off-by: Stefan Roese <sr@denx.de>
2006-10-28 17:13:12 +02:00
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
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
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
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
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
0b8fa03b6d * Patch by Christian Hohnstaedt, 23 Apr 2004:
JFFS2 speed enhancements:
  - repair header CRC calculation in jffs2_1pass.c
  - add eraseblock size to the partition information to skip empty
    eraseblocks if we find more then 4k of free space.
  - The JFFS2 scanner is now fast enough to remove the spinning wheel
    so #ifdef-ed out.
  - add watchdog calls in long running loops

* Patch by Philippe Robin, 22 Apr 2004:
  Fix ethernet configuration for "versatile" board

* Patch by Kshitij Gupta, 21 Apr 2004:
  Remove busy loop and use MPU timer fr usleep() on OMAP1510/1610 boards

* Patch by Steven Scholz, 24 Feb 2004:
  Fix a bug in AT91RM9200 ethernet driver:
  The MII interface is now initialized before accessing the PHY.

* Cleanup PCI ID's
2004-04-25 14:37:29 +00:00
wdenk
232c150a25 Add support for Siemens SX1 mobile phone;
add support for USB-based console
(enable with "setenv stdout usbtty; setenv stdin usbtty")
2004-03-12 00:14:09 +00:00
wdenk
028ab6b598 * Patch by Peter Ryser, 20 Feb 2004:
Add support for the Xilinx ML300 platform

* Patch by Stephan Linz, 17 Feb 2004:
  Fix watchdog support for NIOS

* Patch by Josh Fryman, 16 Feb 2004:
  Fix byte-swapping for cfi_flash.c for different bus widths

* Patch by Jon Diekema, 14 Jeb 2004:
  Remove duplicate "FPGA Support" notes from the README file
2004-02-23 23:54:43 +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
wdenk
a8c7c708a9 * Patch by Gleb Natapov, 19 Sep 2003:
Move most of the timer interrupt related PPC code to ppc_lib/interrupts.c

* Patch by Anders Larsen, 17 Sep 2003:
  Bring ARM memory layout in sync with the documentation:
  stack and malloc-heap are now located _below_ the U-Boot code
2003-12-06 19:49:23 +00:00
wdenk
a3ad8e26a4 * Patch by Steven Scholz, 18 Oct 2003:
Fix AT91RM9200 ethernet driver

* Patch by Nye Liu, 17 Oct 2003:
  Fix typo in include/mpc8xx.h

* Patch by Richard Woodruff, 16 Oct 03:
  Fixes for cpu/arm925/interrupt.c
  - Initialize timestamp & lastdec vars.
  - fix timestamp overflows.
  - fix lastdec overflow.
  - smarter normalization to allow udelay() below 1ms to work.

* Patch by Scott McNutt, 16 Oct
  add networking support for the Altera Nios Development Kit,
  Cyclone Edition (DK-1C20)

* Patch by Jon Diekema, 14 Oct 2003:
  add hint about doc/README.silent to README file
2003-10-19 23:22:11 +00:00
wdenk
b0639ca332 Support new configuration of TRAB board with more memory
Minor cleanup of comments
2003-09-17 22:48:07 +00:00
wdenk
1f4bb37d6b * Patch by Scott McNutt, 21 Jul 2003:
Add support for LynuxWorks Kernel Downloadable Images (KDIs).
  Both LynxOS and BlueCat linux KDIs are supported.

* Patch by Richard Woodruff, 25 Jul 2003:
  use more reliable reset for OMAP/925T

* Patch by Nye Liu, 25 Jul 2003:
  fix typo in mpc8xx.h

* Patch by Richard Woodruff, 24 Jul 2003:
  Fixes for cmd_nand.c:
  - Fixed null dereferece which could result in incorrect ECC values.
  - Added support for devices with no Ready/Busy signal hooked up.
  - Added OMAP1510 read/write protect handling.
  - Fixed nand.h's ECCPOS. A conflict existed with POS5 and badblock
    for non-JFFS2.
  - Switched default ECC to be JFFS2.
2003-07-27 00:21:01 +00:00
wdenk
945af8d723 * Add support for IceCube board (with MGT5100 and MPC5200 CPUs)
* Add support for MGT5100 and MPC5200 processors
2003-07-16 21:53:01 +00:00
wdenk
2e5983d2ea Patches by Kshitij, 04 Jul 2003
- added support for arm925t cpu core
- added support for TI OMAP 1510 Innovator Board
2003-07-15 20:04:06 +00:00