Commit graph

64 commits

Author SHA1 Message Date
Mike Frysinger
3f390e15a7 Blackfin: bf537-stamp: use common spi boot workaround code
The common gpio code provides a function for handling the spi boot
workaround logic, so switch over to that rather than bang on the
gpio MMRs directly.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-07-05 05:30:08 -04:00
Mike Frysinger
c5530555f8 Blackfin: unify custom gpio commands
Now that we have a unified gpio layer, the misc partial gpio commands
can be unified and made complete (support all possible gpios).

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-07-05 05:30:07 -04:00
Mike Frysinger
7393a09800 Blackfin: bf537-stamp: drop old spi_flash driver
The new common spi framework and spi flash subsystem provides all the same
functionality as the old Blackfin-specific driver, so punt the old one as
it has been sticking around long enough.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-07-05 04:18:18 -04:00
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
61f2b38a17 Replace "#include <asm-$ARCH/$FILE>" with "#include <asm/$FILE>"
The appropriate include/asm-$ARCH directory should already by symlinked
to include/asm so using the whole "asm-$ARCH" path is unnecessary.

This change should also allow us to move the include/asm-$ARCH
directories into their appropriate lib/$ARCH/ directories.

Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
2010-04-13 09:13:04 +02:00
Peter Tyser
78acc472d9 Rename lib_generic/ to lib/
Now that the other architecture-specific lib directories have been
moved out of the top-level directory there's not much reason to have the
'_generic' suffix on the common lib directory.

Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
2010-04-13 09:13:04 +02:00
Peter Tyser
89f39e177e Change directory-specific CFLAGS to use full path
Previously, a specific file or directory could be compiled with custom
CFLAGS by adding a Makefile variable such as:
  CFLAGS_dlmalloc.o = <custom flags for common/dlmalloc.c>
or
  CFLAGS_lib = <custom flags for lib directory>

This method breaks down once multiple files or directories share the
same path.  Eg FLAGS_fileA = <custom flags> would incorrectly result in
both dir1/fileA.c and dir2/fileA.c being compiled with <custom flags>.

This change allows finer grained control which we need once we move
lib_$ARCH to arch/$ARCH/lib/ and lib_generic/ to lib/.  Without this
change all lib/ directories would share the same custom CFLAGS.

Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
2010-04-13 09:13:00 +02:00
Mike Frysinger
fa45bd498a Blackfin: kill off useless initdram() usage
While the initdram() function makes sense on some arches, it doesn't for
Blackfin systems as it's always implemented the same way.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-01-17 09:17:26 -05:00
Mike Frysinger
cd84423a09 mtd: nand: new base driver for memory mapped nand devices
The BF537-STAMP Blackfin board had a driver for working with NAND devices
that are simply memory mapped.  Since there is nothing Blackfin specific
about this, generalize the driver a bit so that everyone can leverage it.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Scott Wood <scottwood@freescale.com>
2009-07-07 17:58:04 -05:00
Mike Frysinger
9ae55ccf60 Blackfin: enable -O2 in lib_generic/ for ADI/Bluetechnix boards
Building the compression code in lib_generic/ with -O2 rather than -Os
gives a nice speed boost without too much code size increase.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-06-15 13:30:19 -04:00
Mike Frysinger
9ff67e5e4c Blackfin: unify u-boot linker scripts
All the Blackfin linker scripts were duplicated across the board dirs with
no difference save from the semi-often used ENV_IS_EMBEDDED option.  So
unify all of them in the lib_blackfin/ dir and for the few boards that
need to embedded the environment directly, add a LDS_BOARD_TEXT define for
them to customize via their board config file.  This is much simpler than
forcing them to duplicate the rest of the linker script.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-06-14 20:01:14 -04:00
Wolfgang Denk
a89c33db96 General help message cleanup
Many of the help messages were not really helpful; for example, many
commands that take no arguments would not print a correct synopsis
line, but "No additional help available." which is not exactly wrong,
but not helpful either.

Commit ``Make "usage" messages more helpful.'' changed this
partially. But it also became clear that lots of "Usage" and "Help"
messages (fields "usage" and "help" in struct cmd_tbl_s respective)
were actually redundant.

This patch cleans this up - for example:

Before:
	=> help dtt
	dtt - Digital Thermometer and Thermostat

	Usage:
	dtt         - Read temperature from digital thermometer and thermostat.

After:
	=> help dtt
	dtt - Read temperature from Digital Thermometer and Thermostat

	Usage:
	dtt

Signed-off-by: Wolfgang Denk <wd@denx.de>
2009-06-12 20:47:16 +02:00
Mike Frysinger
d248cfb2d9 Blackfin: bf537-stamp: split CF/IDE code out into dedicated cf-ide.c
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-04-02 06:42:00 -04:00
Mike Frysinger
4de1a5daab Blackfin: bf537-stamp: split post code out into dedicated post.c
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-03-24 20:36:31 -04:00
Mike Frysinger
5e8f245743 Blackfin: add support for S25FL128 parts
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-03-24 20:36:31 -04:00
Mike Frysinger
bf1e028bf3 Blackfin: overhaul SPI flash handling to speed things up
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-03-24 20:36:31 -04:00
Mike Frysinger
efcc08cede Blackfin: add support for SST SPI flashes
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-03-24 20:36:30 -04:00
Mike Frysinger
5b8cfbe63f Blackfin: add hack for crappy m25p80
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-03-24 20:36:30 -04:00
Mike Frysinger
751e54c3b7 Blackfin: bf537-stamp: rewrite MAC-in-flash handling
Use the common net eth functions to setup the env/global data with the MAC
address, and properly handle the case where CONFIG_SYS_NO_FLASH is defined.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-03-24 20:36:29 -04:00
Mike Frysinger
7e1d212b6d Blackfin: kill off LDR jump block
The Boot ROM uses EVT1 as the entry point so set that rather than having
to use a tiny jump block in the default EVT1 location.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-03-23 15:14:54 -04:00
Mike Frysinger
bc683f58b1 Blackfin: bf537-stamp: move CONFIG_POST handling to COBJS-$(...)
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-03-23 15:14:52 -04:00
Mike Frysinger
4b7e3d045c Blackfin: move default boot SPI CS to common code
Move the default SPI CS that we boot from into common code so that it can
be used in other SPI drivers and environment settings.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-02-05 21:25:36 -05:00
Mike Frysinger
6e87ea0ca9 Blackfin: add port muxing for BF51x SPI
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-02-02 12:27:16 -05:00
Wolfgang Denk
ee924e0030 Merge branch 'master' of git://git.denx.de/u-boot-net 2009-02-01 21:31:37 +01:00
Mike Frysinger
75edebe301 Move is_valid_ether_addr() to include/net.h
Import the is_valid_ether_addr() function from the Linux kernel.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Ben Warren <biggerbadderben@gmail.com>
2009-01-28 23:59:27 -08:00
Mike Frysinger
fe033ad6d0 Blackfin: fixup misc warnings such as printf's and missing casts
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-01-28 13:27:28 -05:00
Mike Frysinger
1f4a3bb503 Blackfin: convert old boards to use COBJS-y Makefile style
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-01-28 13:27:28 -05:00
Mike Frysinger
362c943347 Blackfin: set default boot SPI CS for BF538/BF539
The BF538/BF539 use CS2 for booting off of rather than CS1 like newer
Blackfin parts.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-01-28 13:26:14 -05:00
Mike Frysinger
a750d038f2 Blackfin: tighten up post memory coding style
No functional changes here; just cleanup code style a bit.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-01-28 13:26:13 -05:00
Mike Frysinger
0649908f92 Blackfin: bf537-stamp nand: fix more style errors in previous commit
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-01-28 13:26:13 -05:00
Mike Frysinger
41f3325ae9 Blackfin: drop dead/wrong debug code in initdram()
The DEBUG code in initdram() is quite old and was never really useful, so
just drop it altogether.  Common Blackfin debug code does a better job.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-01-28 13:26:13 -05:00
Peter Tyser
2fb2604d5c Command usage cleanup
Remove command name from all command "usage" fields and update
common/command.c to display "name - usage" instead of
just "usage". Also remove newlines from command usage fields.

Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
2009-01-28 08:49:52 +01:00
Mike Frysinger
032a1c934e bf537-stamp/nand: fix board_nand_init prototype
The board_nand_init() function should return an int, not void.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-01-07 03:00:22 -05:00
Mike Frysinger
e7e684b10d Blackfin: fix out-of-tree building with ldscripts
Many of the Blackfin board linker scripts are preprocessed, so make sure we
output the linker script into the build tree rather than the source tree.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-01-07 02:59:50 -05:00
Mike Frysinger
b9eecc342f Blackfin: fix linker scripts to work with --gc-sections
Make sure all .text sections get pulled in and the entry point is properly
referenced so they don't get discarded when linking with --gc-sections.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-01-07 02:59:46 -05:00
Mike Frysinger
509fc553bc Blackfin: set proper LDRFLAGS for parallel booting LDRs
In order to boot an LDR out of parallel flash, the ldr utility needs a few
flags to tell it to generate the right header.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-01-07 02:59:05 -05:00
Mike Frysinger
c23bff63fb Blackfin: linker scripts: force start.o and set initcode boundaries
Make sure that the start.o object is always the first object in our linker
script regardless of configuration settings, and add some linker symbols
so the ldr utility can properly locate the initcode when generating a LDR.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2008-10-23 05:03:51 -04:00
Wolfgang Denk
8ed44d91c8 Cleanup: fix "MHz" spelling
Signed-off-by: Wolfgang Denk <wd@denx.de>
2008-10-21 11:25:39 +02:00
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
Jean-Christophe PLAGNIOL-VILLARD
0cf4fd3cf8 rename environment.c in env_embedded.c to reflect is functionality
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
2008-09-10 22:48:01 +02:00
Ben Warren
89973f8a82 Introduce netdev.h header file and remove externs
This addresses all drivers whose initializers have already
been moved to board_eth_init()/cpu_eth_init().

Signed-off-by: Ben Warren <biggerbadderben@gmail.com>
2008-09-02 21:18:16 -07:00
Ben Warren
914947313a Moved initialization of Blackfin EMAC Ethernet controller to board_eth_init()
Added board_eth_init() function to bf537-stamp board.
Removed initialization for the Blackin EMAC driver from net/eth.c

Signed-off-by: Ben Warren <biggerbadderben@gmail.com>
2008-08-26 22:17:36 -07:00
William Juul
5e1dae5c3d Fixing coding style issues
- Fixing leading white spaces
 - Fixing indentation where 4 spaces are used instead of tab
 - Removing C++ comments (//), wherever I introduced them

Signed-off-by: William Juul <william.juul@tandberg.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
2008-08-12 11:31:17 -05:00
William Juul
4cbb651b29 Remove white space at end.
Signed-off-by: William Juul <william.juul@tandberg.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
2008-08-12 11:31:16 -05:00
William Juul
cfa460adfd Update MTD to that of Linux 2.6.22.1
A lot changed in the Linux MTD code, since it was last ported from
Linux to U-Boot. This patch takes U-Boot NAND support to the level
of Linux 2.6.22.1 and will enable support for very large NAND devices
(4KB pages) and ease the compatibility between U-Boot and Linux
filesystems.

This patch is tested on two custom boards with PPC and ARM
processors running YAFFS in U-Boot and Linux using gcc-4.1.2
cross compilers.

MAKEALL ppc/arm has some issues:
 * DOC/OneNand/nand_spl is not building (I have not tried porting
   these parts, and since I do not have any HW and I am not familiar
   with this code/HW I think its best left to someone else.)

Except for the issues mentioned above, I have ported all drivers
necessary to run MAKEALL ppc/arm without errors and warnings. Many
drivers were trivial to port, but some were not so trivial. The
following drivers must be examined carefully and maybe rewritten to
some degree:
 cpu/ppc4xx/ndfc.c
 cpu/arm926ejs/davinci/nand.c
 board/delta/nand.c
 board/zylonite/nand.c

Signed-off-by: William Juul <william.juul@tandberg.com>
Signed-off-by: Stig Olsen <stig.olsen@tandberg.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
2008-08-12 11:31:15 -05:00
Wolfgang Denk
c8a3b109f0 Cleanup out-or-tree building for some boards (.depend)
Signed-off-by: Wolfgang Denk <wd@denx.de>
2008-07-02 23:49:18 +02:00
Becky Bruce
9973e3c614 Change initdram() return type to phys_size_t
This patch changes the return type of initdram() from long int to phys_size_t.
This is required for a couple of reasons: long int limits the amount of dram
to 2GB, and u-boot in general is moving over to phys_size_t to represent the
size of physical memory.  phys_size_t is defined as an unsigned long on almost
all current platforms.

This patch *only* changes the return type of the initdram function (in
include/common.h, as well as in each board's implementation of initdram).  It
does not actually modify the code inside the function on any of the platforms;
platforms which wish to support more than 2GB of DRAM will need to modify
their initdram() function code.

Build tested with MAKEALL for ppc, arm, mips, mips-el. Booted on powerpc
MPC8641HPCN.

Signed-off-by: Becky Bruce <becky.bruce@freescale.com>
2008-06-12 08:50:18 +02:00
Mike Frysinger
9171fc8172 Blackfin: unify cpu and boot modes
All of the duplicated code for Blackfin processors and boot modes have been
unified.  After all, the core is the same for all processors, just the
peripheral set differs (which gets handled in the drivers).

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2008-03-30 15:50:19 -04:00
Mike Frysinger
9ce7e53abd Blackfin: BF537-stamp: cleanup spi flash driver
This punts the old spi flash driver for a new/generalized one until the
common one can be integrated.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2008-03-30 15:13:42 -04:00
Mike Frysinger
395bce4f59 net/Blackfin: move on-chip MAC driver into drivers/net/
The Blackfin on-chip MAC driver was being managed in the BF537-STAMP board
directory, but it is not board specific, so relocate it to the drivers dir
so that other Blackfin ports can utilize it.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2008-03-25 22:35:26 +01:00