Commit graph

27 commits

Author SHA1 Message Date
Mike Frysinger
710aa76227 Blackfin: drop now unused local variable
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-11-18 22:13:25 -05:00
Simon Glass
c1f485a1e8 blackfin: Use getenv_ulong() in place of getenv(), strtoul
This changes the board code to use the new getenv_ulong() function.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Mike Frysinger <vapier@gentoo.org>
2011-10-23 23:33:18 +02:00
Mike Frysinger
2151374fa6 Blackfin: post: generalize led/button tests with GPIOs
Make it easy for any Blackfin board to enable led/push button tests.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-09-29 16:38:05 -04:00
Mike Frysinger
4257ea4efd Blackfin: post: drop custom test list
The few tests that are Blackfin-specific have been migrated to common
code or been rewritten with the existing "bsp-specific" defines.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-09-29 16:38:05 -04:00
Wolfgang Denk
1902692aa0 Merge branch 'master' of git://git.denx.de/u-boot-blackfin
* 'master' of git://git.denx.de/u-boot-blackfin:
  Blackfin: jtag-console: fix timer usage
  Blackfin: switch to common display_options()
  Blackfin: serial: move early debug strings into .rodata section
  Blackfin: adi boards: also set stderr to nc with helper
  Blackfin: update anomaly lists to latest public info
  Blackfin: serial: convert to bfin_{read,write} helpers
  Blackfin: split out async setup
  Blackfin: adi boards: enable pretty flash progress output
  Blackfin: drop unused dma.h header from start code
  Blackfin: portmux: allow header to be included in assembly files
  Blackfin: cm-bf537e/cm-bf537u/tcm-bf537: enable mmc_spi support
  Blackfin: cm-bf537e/cm-bf537u/tcm-bf537: update network settings
  Blackfin: sync MMR read/write helpers with Linux
  Blackfin: gpio: optimize free path a little
  Blackfin: post: setup default CONFIG_SYS_POST_WORD_ADDR
  Blackfin: uart: fix printf warning
  Blackfin: add init.elf helper code
  Blackfin: dont reset SWRST on newer bf526 parts
  Blackfin: adi boards: enable multi serial support by default
  Blackfin: uart: add multiple serial support
  Blackfin: uart: move debug buffers into local bss
2011-08-02 21:46:53 +02:00
Andreas Bießmann
09c2e90c11 unify version_string
This patch removes the architecture specific implementation of
version_string where possible. Some architectures use a special place
and therefore we provide U_BOOT_VERSION_STRING definition and a common
weak symbol version_string.

Signed-off-by: Andreas Biemann <andreas.devel@googlemail.com>
CC: Mike Frysinger <vapier@gentoo.org>
CC: Peter Pan <pppeterpppan@gmail.com>
Acked-by: Mike Frysinger <vapier@gentoo.org>
2011-07-28 17:22:53 +02:00
Mike Frysinger
bb83875d5d Blackfin: switch to common display_options()
Use common code to output the version string rather than doing it
ourselves.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-07-12 02:17:46 -04:00
Mike Frysinger
635f330fc7 Blackfin: uart: add multiple serial support
This brings CONFIG_SERIAL_MULTI support to the Blackfin on-chip UARTs.
Ends up adding only ~512bytes per additional UART.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-07-12 02:17:45 -04:00
Mike Frysinger
867f54cc35 Blackfin: use common LDSCRIPT logic
Now that common code is a bit smarter when it comes to default LDSCRIPT
values, rename the default Blackfin file and drop the Blackfin-specific
config.mk logic.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-06-03 13:26:45 -04:00
Mike Frysinger
105be9078c Blackfin: default to L1 bank A when L1 bank B does not exist
Some parts lack Bank B in L1 data, so have the linker script fall back to
Bank A when that happens.  This way we can still leverage L1 data.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-04-08 00:44:26 -04:00
Mike Frysinger
05e7825e49 Blackfin: only check for os log when we have external memory
If the part has no external memory configured, then there will be no os
log for us to check, and any attempt to access that memory will trigger
hardware errors.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-04-08 00:44:26 -04:00
Mike Frysinger
5a9a2c55d1 Blackfin: fix bd_t handling
The recent global data changes (making the size autogenerated) broke the
board info handling on Blackfin ports as we were lying and lumping the
bd_t size in with the gd_t size.  So use the new dedicated bd_t size to
setup its own address in memory.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-04-08 00:44:26 -04:00
Mike Frysinger
fbcf8e8c75 Blackfin: move CONFIG_BFIN_CPU back to board config.h
This is a revert of 821ad16fa9 as Wolfgang doesn't like the new code.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-04-08 00:44:26 -04:00
Mike Frysinger
7d69dfd2a8 Blackfin: skip RAM display for 0 mem systems
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-04-08 00:44:26 -04:00
Mike Frysinger
49508d4c59 Blackfin: make sure bss len is multiple of 4 bytes
The Blackfin on-chip BootROM requires that fill operations (which is
used for the bss) be aligned to 4 bytes (base addr and total len).
Plus, the Blackfin early init asm code assumes the same thing.  So
rather than making things work for no real gain, make sure the bss
len is padded to 4 bytes in the linker script.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-11-18 04:38:19 -05:00
Mike Frysinger
cd97dd4f2c Blackfin: stick ins/outs funcs into their own .text section
This lets the linker garbage collect these functions when they aren't
actually used by placing them into the standard .text.<func> section.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-11-18 04:38:19 -05:00
Sebastien Carlier
6d8962e814 Switch from archive libraries to partial linking
Before this commit, weak symbols were not overridden by non-weak symbols
found in archive libraries when linking with recent versions of
binutils.  As stated in the System V ABI, "the link editor does not
extract archive members to resolve undefined weak symbols".

This commit changes all Makefiles to use partial linking (ld -r) instead
of creating library archives, which forces all symbols to participate in
linking, allowing non-weak symbols to override weak symbols as intended.
This approach is also used by Linux, from which the gmake function
cmd_link_o_target (defined in config.mk and used in all Makefiles) is
inspired.

The name of each former library archive is preserved except for
extensions which change from ".a" to ".o".  This commit updates
references accordingly where needed, in particular in some linker
scripts.

This commit reveals board configurations that exclude some features but
include source files that depend these disabled features in the build,
resulting in undefined symbols.  Known such cases include:
- disabling CMD_NET but not CMD_NFS;
- enabling CONFIG_OF_LIBFDT but not CONFIG_QE.

Signed-off-by: Sebastien Carlier <sebastien.carlier@gmail.com>
2010-11-17 21:02:18 +01:00
Wolfgang Denk
25ddd1fb0a Replace CONFIG_SYS_GBL_DATA_SIZE by auto-generated value
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: Wolfgang Denk <wd@denx.de>
Acked-by: Kumar Gala <galak@kernel.crashing.org>
2010-10-26 21:05:30 +02:00
Mike Frysinger
d3c07a5d24 Blackfin: fix MMC init output alignment
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-10-02 16:00:40 -04:00
Mike Frysinger
821ad16fa9 Blackfin: move CONFIG_BFIN_CPU to board config.mk
The CONFIG_BFIN_CPU option is largely used in the build system, so move
it out of the board config.h and into the board config.mk.  It'd be nice
to keep everything in the config.h, but the patch to extract that value
early was rejected.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-10-02 16:00:38 -04:00
Michael Zaidman
800eb09641 POST cleanup.
- 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: Michael Zaidman <michael.zaidman@gmail.com>
Acked-by: Detlev Zundel <dzu@denx.de>
Tested-by: Anatolij 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>
2010-09-21 21:39:31 +02:00
Mike Frysinger
5d89115c53 Blackfin: re-use board data in cpu banner
The bi_cpu field of the board data is already set to the relevant cpu
string, so there is no need for us to use the define directly.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-08-11 11:29:19 -04:00
Michael Hennerich
5fc564eda7 Blackfin: shutdown video DMA when booting Linux
In case there is no frame buffer driver present in Linux to hand over the
PPI LCD DMA upon boot, the DMA initiated by u-boot to display the splash
screen runs unattended.  Therefore always stop the video driver in u-boot
before starting Linux.  If people don't want this behavior, then they can
simply stub out the video_stop() function in their board video driver.

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-08-11 11:29:08 -04:00
Wolfgang Denk
cdb749778a Rename getenv_r() into getenv_f()
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: Wolfgang Denk <wd@denx.de>
Acked-by: Detlev Zundel <dzu@denx.de>
2010-08-04 00:45:36 +02:00
Wolfgang Denk
54841ab50c Make sure that argv[] argument pointers are not modified.
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: Wolfgang Denk <wd@denx.de>
Acked-by: Mike Frysinger <vapier@gentoo.org>
2010-07-04 23:55:42 +02:00
Peter Tyser
c6fb83d217 blackfin: Move cpu/blackfin/* to arch/blackfin/cpu/*
Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
2010-04-13 09:13:25 +02:00
Peter Tyser
ea0364f1bb Move lib_$ARCH directories to arch/$ARCH/lib
Also move lib_$ARCH/config.mk to arch/$ARCH/config.mk

This change is intended to clean up the top-level directory structure
and more closely mimic Linux's directory organization.

Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
2010-04-13 09:13:03 +02:00