r14 is not supposed to be clobbered by functions. Switch
to r12 and call GET_GOT when needed. This will allow u-boot
to loose the -ffixed-r14 gcc option.
Signed-off-by: Joakim Tjernlund <Joakim.Tjernlund@transmode.se>
Using the GOT in IRQ handlers requires r14 to be -ffixed-r14.
Avoid this by relocatate transfer_to_handler too.
This will allow to free up r14 later on.
Signed-off-by: Joakim Tjernlund <Joakim.Tjernlund@transmode.se>
NULL is an absolute value and should not be relocated.
After this correction code like:
void weak_fun(void) __attribute__((weak));
printf("weak_fun:%p\n", weak_fun);
will still print null after relocation.
Signed-off-by: Joakim Tjernlund <Joakim.Tjernlund@transmode.se>
The following changes allow U-Boot to fully relocate from flash to
RAM:
- Remove linker scripts' .fixup sections from the .text section
- Add -mrelocatable to PLATFORM_RELFLAGS for all boards
- Define CONFIG_RELOC_FIXUP_WORKS for all boards
Previously, U-Boot would partially relocate, but statically initialized
pointers needed to be manually relocated.
Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
A recent gcc added a new unaligned rodata section called '.rodata.str1.1',
which needs to be added the the linker script. Instead of just adding this
one section, we use a wildcard ".rodata*" to get all rodata linker section
gcc has now and might add in the future.
However, '*(.rodata*)' by itself will result in sub-optimal section
ordering. The sections will be sorted by object file, which causes extra
padding between the unaligned rodata.str.1.1 of one object file and the
aligned rodata of the next object file. This is easy to fix by using the
SORT_BY_ALIGNMENT command.
This patch has not be tested one most of the boards modified. Some boards
have a linker script that looks something like this:
*(.text)
. = ALIGN(16);
*(.rodata)
*(.rodata.str1.4)
*(.eh_frame)
I change this to:
*(.text)
. = ALIGN(16);
*(.eh_frame)
*(SORT_BY_ALIGNMENT(SORT_BY_NAME(.rodata*)))
This means the start of rodata will no longer be 16 bytes aligned.
However, the boundary between text and rodata/eh_frame is still aligned to
16 bytes, which is what I think the real purpose of the ALIGN call is.
Signed-off-by: Trent Piepho <xyzzy@speakeasy.org>
The PCI_REGION_MEMORY and PCI_REGION_MEM are a bit to similar and
can be confusing when reading the code.
Rename PCI_REGION_MEMORY to PCI_REGION_SYS_MEMORY to clarify its used
for system memory mapping purposes.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Parallel builds would occasionally issue this build warning:
ln: creating symbolic link `cpu/mpc824x/bedbug_603e.c': File exists
Use "ln -sf" as quick work around for the issue.
Signed-off-by: Wolfgang Denk <wd@denx.de>
All implementations of the functions i2c_reg_read() and
i2c_reg_write() are identical. We can save space and simplify the
code by converting these functions into inlines and putting them in
i2c.h.
Signed-off-by: Timur Tabi <timur@freescale.com>
Acked-By: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Most of the bss initialization loop increments 4 bytes
at a time. And the loop end is checked for an 'equal'
condition. Make the bss end address aligned by 4, so
that the loop will end as expected.
Signed-off-by: Selvamuthukumar <selva.muthukumar@e-coninfotech.com>
Signed-off-by: Wolfgang Denk <wd@denx.de>
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>
The cross compiler is responsible for providing the correct libraries
and the logic to find the linking libraries.
Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
R29 was an unlucky choice as with recent toolchains (gcc-4.2.x) gcc
will refuse to use load/store multiple insns; instead, it issues a
list of simple load/store instructions upon function entry and exit,
resulting in bigger code size, which in turn makes the build for a
few boards fail.
Use r2 instead.
Signed-off-by: Wolfgang Denk <wd@denx.de>
With recent toolchain versions, some boards would not build because
or errors like this one (here for ocotea board when building with
ELDK 4.2 beta):
ppc_4xx-ld: section .bootpg [fffff000 -> fffff23b] overlaps section .bss [fffee900 -> fffff8ab]
For many boards, the .bss section is big enough that it wraps around
at the end of the address space (0xFFFFFFFF), so the problem will not
be visible unless you use a 64 bit tool chain for development. On
some boards however, changes to the code size (due to different
optimizations) we bail out with section overlaps like above.
The fix is to add the NOLOAD attribute to the .bss and .sbss
sections, telling the linker that .bss does not consume any space in
the image.
Signed-off-by: Wolfgang Denk <wd@denx.de>
Ugh. I *hate* to back this change out, but these compiler flags don't
work for relocation on all versions of GCC. I've not been able to
reproduce the environment in my setup (and hence, not been able to
find a combination that *does* work), so I've got no choice but to go
back to the old gcc flags and linker script.
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Since December 2003 the timer_interrupt_cpu() function in
cpu/mpc824x/interrupts.c contains what seems to be a superfluous
parameter. Remove it.
Signed-off-by: Guennadi Liakhovetski <lg@denx.de>
This is a compatibility step that allows both the older form
and the new form to co-exist for a while until the older can
be removed entirely.
All transformations are of the form:
Before:
#if (CONFIG_COMMANDS & CFG_CMD_AUTOSCRIPT)
After:
#if (CONFIG_COMMANDS & CFG_CMD_AUTOSCRIPT) || defined(CONFIG_CMD_AUTOSCRIPT)
Signed-off-by: Jon Loeliger <jdl@freescale.com>
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.
Add support for Analogue & Micro Rattler boards.
Tested on Rattler8248.
* Patch by Andre Renaud, 08 Nov 2004:
Fix watchdog support in common/lcd.c
* Patch by Marc Leeman, 05 Nov 2003:
Enable all 4 PCMBRW buffers for the MPC8245 processor since the CPU
bug only affects the XPC8245 processors
mpc824x: set PCI latency timer to a sane value
(is 0 after reset).
* Patch by Kurt Stremerch, 03 Sep 2004:
Add bitstream configuration option for fpga command (Xilinx only).
* Cleanup confusing use of CONFIG_ETH*ADDR - ust his only to
pre-define a MAC address; use CONFIG_HAS_ETH* to enable support for
additional ethernet addresses.
* Cleanup drivers/i82365.c - avoid duplication of code
* Fix bogus "cannot span across banks" flash error message
* Add support for CompactFlash for the CPC45 Board.
* 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)
- update board/emk tree; use common flash driver
- Corrected tested bits in machine check exception in cpu/mpc5xxx/traps.c
[adapted for other PPC CPUs -- wd]
- Added support for the M48T08 on the EVAL5200 board in rtc/mk48t59.c
* Patch by Jon Diekema, 13 Feb 2004:
Call show_boot_progress() whenever POST "FAILED" is printed.
* Patch by Nishant Kamat, 13 Feb 2004:
Add support for TI OMAP1610 H2 Board
Fixes for cpu/arm926ejs/interrupt.c
(based on Richard Woodruff's patch for arm925, 16 Oct 03)
Fix for a timer bug in OMAP1610 Innovator
Add support for CS0 (ROM)/CS3 (Flash) boot in OMAP1610 Innovator and H2
* Patches by Stephan Linz, 12 Feb 2004:
- add support for NIOS timer with variable period preload counter value
- prepare POST framework support for NIOS targets
* Patch by Denis Peter, 11 Feb 2004:
add POST support for the MIP405 board
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
recent tools
* Add checksum verification to 'imls' command
* Add bd_info fields needed for 4xx Linux I2C driver
* Patch by Martin Krause, 4 Nov. 2003:
Fix error in cmd_vfd.c (TRAB board: "vfd /1" shows now only one Bitmap)
* Print used network interface when CONFIG_NET_MULTI is set
fix pll_pci_to_mem_multiplier table for MPC8245
* Patch by Anders Larsen, 22 Sep 2003:
enable timed autoboot on PXA
* Patch by David Müller, 22 Sep 2003:
- add $(CFLAGS) to "-print-libgcc-filename" so compiler driver
returns correct libgcc file path
- "latency" reduction of busy-loop waiting to improve "U-Boot" boot
time on s3c24x0 systems
* Patch by Jon Diekema, 19 Sep 2003:
- Add CFG_FAULT_ECHO_LINK_DOWN option to echo the inverted Ethernet
link state to the fault LED.
- In NetLoop, make the Fault LED reflect the link status. The link
status gets updated on entry, and on timeouts.
enable watchdog support for all MPC824x boards that have a watchdog
* On MPC5200, restrict FEC to a maximum of 10 Mbps to work around the
"Non-octet Aligned Frame" errors we see at 100 Mbps
* Patch by Sharad Gupta, 14 Sep 2003:
fix SPR numbers for upper BAT register ([ID]BAT[4-7][UL])
add FAT support for IDE, SCSI and USB
* Patches by Gleb Natapov, 2 Sep 2003:
- cleanup of POST code for unsupported architectures
- MPC824x locks way0 of data cache for use as initial RAM;
this patch unlocks it after relocation to RAM and invalidates
the locked entries.
* Patch by Gleb Natapov, 30 Aug 2003:
new I2C driver for mpc107 bridge. Now works from flash.
* Patch by Dave Ellis, 11 Aug 2003:
- JFFS2: fix typo in common/cmd_jffs2.c
- JFFS2: fix CFG_JFFS2_SORT_FRAGMENTS option
- JFFS2: remove node version 0 warning
- JFFS2: accept JFFS2 PADDING nodes
- SXNI855T: add AM29LV800 support
- SXNI855T: move environment from EEPROM to flash
- SXNI855T: boot from JFFS2 in NOR or NAND flash
* Patch by Bill Hargen, 11 Aug 2003:
fixes for I2C on MPC8240
- fix i2c_write routine
- fix iprobe command
- eliminates use of global variables, plus dead code, cleanup.
applications: instead of using (PPC-specific) system calls we now
use a jump table; please see doc/README.standalone for details
* Patch by Dave Westwood, 24 Jul 2003:
added support for Unity OS (a proprietary OS)
- remove trailing white space, trailing empty lines, C++ comments, etc.
- split cmd_boot.c (separate cmd_bdinfo.c and cmd_load.c)
* Patches by Kenneth Johansson, 25 Jun 2003:
- major rework of command structure
(work done mostly by Michal Cendrowski and Joakim Kristiansen)
add large memory support for MPC8266ADS board
* Patch by Richard Woodruff, 19 June 03:
- Enabled standard u-boot device abstraction for ARM
- Enabled console device for ARM
- Initilized bi_baudrate for ARM
* Patch by Bill Hargen, 23 Apr 2003:
fix byte order for 824x I2C addresses (write op)
- Added support for custom keyboards, initialized by defining a
board-specific drv_keyboard_init as well as defining CONFIG_KEYBOARD .
- Added support for the RBC823 board.
- cpu/mpc8xx/lcd.c now automatically calculates the
Horizontal Pixel Count field.
* Fix alignment problem in BOOTP (dhcp_leasetime option)
[pointed out by Nicolas Lacressonnière, 2 Jun 2003]
* Patch by Mark Rakes, 14 May 2003:
add support for Intel e1000 gig cards.
* Patch by Nye Liu, 3 Jun 2003:
fix critical typo in MAMR definition (include/mpc8xx.h)
* Fix requirement to align U-Boot image on 16 kB boundaries on PPC.
* Patch by Klaus Heydeck, 2 Jun 2003
Minor changes for KUP4K configuration
Fixed rarp boot method for IA32 and other little-endian CPUs.
* Patch by Marc Singer, 28 May 2003:
Added port I/O commands.
* Patch by Matthew McClintock, 28 May 2003
- cpu/mpc824x/start.S: fix relocation code when booting from RAM
- minor patches for utx8245
* Patch by Daniel Engström, 28 May 2003:
x86 update
* Patch by Dave Ellis, 9 May 2003 + 27 May 2003:
add nand flash support to SXNI855T configuration
fix/extend nand flash support:
- fix 'nand erase' command so does not erase bad blocks
- fix 'nand write' command so does not write to bad blocks
- fix nand_probe() so handles no flash detected properly
- add doc/README.nand
- add .jffs2 and .oob options to nand read/write
- add 'nand bad' command to list bad blocks
- add 'clean' option to 'nand erase' to write JFFS2 clean markers
- make NAND read/write faster
* Patch by Rune Torgersen, 23 May 2003:
Update for MPC8266ADS board
instead CFG_MONITOR_LEN is now only used to determine _at_compile_
_time_ (!) if the environment is embedded within the U-Boot image,
or in a separate flash sector.
* Cleanup CFG_DER #defines in config files (wd maintained only)
Fix problem with only partially cleared .bss segment
* Patch by Rune Torgersen, 12 May 2003:
get PCI to work on a MPC8266ADS board; incorporate change to
cpu/mpc8260/pci.c to enable overrides of PCI memory parameters
- fix bug in BOOTP code (must use NetCopyIP)
- update of CSB226 port
- clear BSS segment on XScale
- added support for i2c_init_board() function
- update to the Innokom plattform
* Extend support for redundand environments for configurations where
environment size < sector size
Wolfgang Denk
Joakim Tjernlund
Peter Tyser
Kumar Gala
Trent Piepho
Timur Tabi
Selvamuthukumar
Jean-Christophe PLAGNIOL-VILLARD
Jason Wessel
Grant Likely
Guennadi Liakhovetski
Jon Loeliger
Jon Loeliger
Rafal Jaworowski
Wolfgang Denk
Marian Balakowicz
Wolfgang Denk
wdenk