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  • Chris Mills Chris Mills millsc
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13 authors
  1. Mar 22, 2011
  3. Jan 09, 2011
  5. Dec 09, 2010
  7. Nov 28, 2010
  9. Oct 26, 2010
    • Wolfgang Denk's avatar
      Replace CONFIG_SYS_GBL_DATA_SIZE by auto-generated value · 25ddd1fb
      Wolfgang Denk authored 
      
CONFIG_SYS_GBL_DATA_SIZE has always been just a bad workarond for not
being able to use "sizeof(struct global_data)" in assembler files.
Recent experience has shown that manual synchronization is not
reliable enough.  This patch renames CONFIG_SYS_GBL_DATA_SIZE into
GENERATED_GBL_DATA_SIZE which gets automatically generated by the
asm-offsets tool.  In the result, all definitions of this value can be
deleted from the board config files.  We have to make sure that all
files that reference such data include the new <asm-offsets.h> file.

No other changes have been done yet, but it is obvious that similar
changes / simplifications can be done for other, related macro
definitions as well.

Signed-off-by: default avatarWolfgang Denk <wd@denx.de>
Acked-by: default avatarKumar Gala <galak@kernel.crashing.org>
      25ddd1fb
  11. Sep 23, 2010
  13. Sep 21, 2010
    • Michael Zaidman's avatar
      POST cleanup. · 800eb096
      Michael Zaidman authored 
      
- Revives POST for blackfin arch;
- Removes redundant code:
     arch/blackfin/lib/post.c
     arch/powerpc/cpu/ppc4xx/commproc.c
     arch/powerpc/cpu/mpc512x/common.c
- fixes up the post_word_{load|store} usage.

Signed-off-by: default avatarMichael Zaidman <michael.zaidman@gmail.com>
Acked-by: default avatarDetlev Zundel <dzu@denx.de>
Tested-by: default avatarAnatolij Gustschin <agust@denx.de>

List of the maintainers of the affected by patch boards:
Cc: Stephan Linz <linz@li-pro.net>
Cc: Denis Peter <d.peter@mpl.ch>
Cc: Matthias Fuchs <matthias.fuchs@esd-electronics.com>
Cc: Peter Tyser <ptyser@xes-inc.com>
Cc: Stefan Roese <sr@denx.de>
Cc: Mike Frysinger <vapier@gentoo.org>
Cc: Niklaus Giger <niklaus.giger@netstal.com>
Cc: Larry Johnson <lrj@acm.org>
Cc: Feng Kan <fkan@amcc.com>
      800eb096
  15. Sep 19, 2010
  17. Aug 03, 2010
    • Wolfgang Denk's avatar
      Rename getenv_r() into getenv_f() · cdb74977
      Wolfgang Denk authored 
      
While running from flash, i. e. before relocation, we have only a
limited C runtime environment without writable data segment. In this
phase, some configurations (for example with environment in EEPROM)
must not use the normal getenv(), but a special function.  This
function had been called getenv_r(), with the idea that the "_r"
suffix would mean the same as in the _r_eentrant versions of some of
the C library functions (for example getdate vs. getdate_r, getgrent
vs. getgrent_r, etc.).

Unfortunately this was a misleading name, as in U-Boot the "_r"
generally means "running from RAM", i. e. _after_ relocation.

To avoid confusion, rename into getenv_f() [as "running from flash"]

Signed-off-by: default avatarWolfgang Denk <wd@denx.de>
Acked-by: default avatarDetlev Zundel <dzu@denx.de>
      cdb74977
  19. Jul 04, 2010
    • Wolfgang Denk's avatar
      Make sure that argv[] argument pointers are not modified. · 54841ab5
      Wolfgang Denk authored 
      
The hush shell dynamically allocates (and re-allocates) memory for the
argument strings in the "char *argv[]" argument vector passed to
commands.  Any code that modifies these pointers will cause serious
corruption of the malloc data structures and crash U-Boot, so make
sure the compiler can check that no such modifications are being done
by changing the code into "char * const argv[]".

This modification is the result of debugging a strange crash caused
after adding a new command, which used the following argument
processing code which has been working perfectly fine in all Unix
systems since version 6 - but not so in U-Boot:

int main (int argc, char **argv)
{
	while (--argc > 0 && **++argv == '-') {
/* ====> */	while (*++*argv) {
			switch (**argv) {
			case 'd':
				debug++;
				break;
			...
			default:
				usage ();
			}
		}
	}
	...
}

The line marked "====>" will corrupt the malloc data structures and
usually cause U-Boot to crash when the next command gets executed by
the shell.  With the modification, the compiler will prevent this with
an
	error: increment of read-only location '*argv'

N.B.: The code above can be trivially rewritten like this:

	while (--argc > 0 && **++argv == '-') {
		char *arg = *argv;
		while (*++arg) {
			switch (*arg) {
			...

Signed-off-by: default avatarWolfgang Denk <wd@denx.de>
Acked-by: default avatarMike Frysinger <vapier@gentoo.org>
      54841ab5
    • Wolfgang Denk's avatar
      Make *printf() return "int" instead of "void" · d9c27253
      Wolfgang Denk authored 
      
Change the return type of the *printf() functions to the standard
"int"; no changes are needed but returning the already available
length count.

This will save a few additional strlen() calls later...

Signed-off-by: default avatarWolfgang Denk <wd@denx.de>
      d9c27253
  21. May 06, 2010
  23. May 05, 2010
  25. Apr 13, 2010
  27. Feb 12, 2010
  29. Feb 05, 2010
  31. Feb 01, 2010
  33. Jan 27, 2010
  35. Jan 17, 2010
    • Heiko Schocher's avatar
      cmd_eeprom: I2C updates · 548738b4
      Heiko Schocher authored 
      
- CONFIG_ENV_EEPROM_IS_ON_I2C
  define this, if you have I2C and SPI activated, and your
  EEPROM, which holds the environment, is on the I2C bus.

- CONFIG_I2C_ENV_EEPROM_BUS
  if you have an Environment on an EEPROM reached over
  I2C muxes, you can now define, how to reach this
  EEPROM.

Signed-off-by: default avatarHeiko Schocher <hs@denx.de>
      548738b4
    • Dirk Behme's avatar
      Make getenv_IPaddr() global · 6a45e384
      Dirk Behme authored 
      
There are boards out there that do not have network support in
U-Boot (CONFIG_CMD_NET not set), but they do so in Linux. This
makes it desirable to be able to port network configuration (like
the IP address) to the Linux kernel.

We should not make the passing of the IP configuration to Linux
dependent on U-Boot features / settings.

For this, make getenv_IPaddr() global. This fixes build error

u-boot/lib_xxx/board.c:360: undefined reference to `getenv_IPaddr'

on various architectures.

Signed-off-by: default avatarDirk Behme <dirk.behme@googlemail.com>
Acked-by: default avatarBen Warren <biggerbadderben@gmail.com>
      6a45e384
  37. Dec 21, 2009
  39. Dec 08, 2009
  41. Dec 05, 2009
    • Ingo van Lil's avatar
      Generic udelay() with watchdog support · 3eb90bad
      Ingo van Lil authored 
      
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: default avatarIngo van Lil <inguin@gmx.de>
      3eb90bad
  43. Nov 27, 2009
  45. Nov 20, 2009
  47. Oct 27, 2009
  49. Oct 18, 2009
    • Mike Frysinger's avatar
      env: only build env_embedded and envcrc when needed · 6dab6add
      Mike Frysinger authored 
      
The env code is protected by the ENV_IS_EMBEDDED define, so attempting to
compile the code when this isn't defined is pointless.  Now that the env
headers have unified around CONFIG_ENV_IS_EMBEDDED, convert the build
system to only build the env objects when this is enabled.  And now that
the env code is conditionally compiled, we can drop the source code checks.

For people who want to extract the environment manually, add a new option
CONFIG_BUILD_ENVCRC that only enables the envcrc utility.

Signed-off-by: default avatarMike Frysinger <vapier@gentoo.org>
      6dab6add
  51. Oct 03, 2009
  53. Sep 10, 2009
  55. Aug 28, 2009
  57. Jul 27, 2009
  59. Jul 26, 2009
    • Wolfgang Denk's avatar
      Make include/common.h usable by assembler code · fcd3c87e
      Wolfgang Denk authored 
      
Commit 70ebf316 factored out the ROUND() macro into include/common.h,
not realizing that the primary use of this macro on AT91 systems was
in start.S where common.h was not included, and could not be included
because it contains a lot of C code which the assembler doesn't
understand.

This patch wraps such code in common.h in a "#ifndef __ASSEMBLY__"
construct, and then adds an include to cpu/arm926ejs/start.S thus
solving the problem.

Signed-off-by: default avatarWolfgang Denk <wd@denx.de>
      fcd3c87e
  61. Jul 22, 2009