Adam Wujek authored 8 years ago and Grzegorz Daniluk committed 8 years ago

remove on clean:
--config.o
--revision.o
--$(OUTPUT).vhd
--$(OUTPUT).mif
--$(OUTPUT)_disasm.S
--include/config
--include/generated
--tools/dump-info-host.bin

arch/lm32/ram.ld is not removed

Signed-off-by: Adam Wujek <adam.wujek@cern.ch>

Alessandro Rubini authored 8 years ago and Grzegorz Daniluk committed 8 years ago

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

These numbers are only available at build time; there is no run-time
command to change them as yet.

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

WARNING: wr_switch_defconfig doesn't build, this is fixed in next commit

Unfortunately this commit makes the internal communication between
minic and lan asymmetric: on receive the tag is discarded (and the
longer header falls into the payload) while on transmit it must be
provided by lan.c.

The reason is that on receive we can trim 4 bytes from the payload,
but on send we can't add 4 bytes without a memmove.  The functions
receive pointers to two different header structures, so hopefully
user errors will be signalled by the compiler.

Still, users interact with net.c, which hides vlan completely from
them.

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

Accessing data structures in the host to get target fields is broken:
we may have different data size or alignment, or whatever. The hack
of using "-m32" to be able to access lm32 fields from x86-64 is not
clean (we imply the i386 and target have the same size/alignment).
Even worse, not everybody has an x86-64 cross-compiler for i386.

Thus, we use OFFSET_OF in the target, with the lm32 cross compiler,
to build a binary table that is then accessed by the host.

In order to link the data structure in the host we use the assembler
instead of objcopy. With objcopy we'd need to spell out the bfd name
of the host, and we'd get horrible names like
   struct dump_info _binary_dump_info_host_bin_start[];

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

This fixes the problem with data sizes when building on a 64-bit host.
Now the dump of ppi makes sense, besides endianness.

Please note how this requires a cross-compile environment for i386
when you build on x86-64. Later on this requirement is lifted.

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

The tool is meant to print internal data structures of the wrpc,
by running either on a dump file or a live system.

The code is an edited copy of wr-switch-sw/userspace/tools/wrs_dump_shmem.c,
so the data-dumping mechanism is from there.

bugs at this point:
   - all endianness stuff is bad (in wrs it was local, here we cross-dump)
   - data sizes are wrong (see next commit)
   - we miss checks for consistency
   - we can't open /dev/mem (for spec for example) or a elf file
   - docs are missing too

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

This changes pfilter-builder.c so it really build in user space, but removing
register setting and creating output files instead.

Running this program creates 3 files, that correspond to the previous
three #ifdef conditions.  The files are:

      rules-plain.bin    this is used for the no-etherbone configuration
      rules-ebone.bin    etherbone setup
      rules-e+nic.bin    etherbon plus 7solution's wr-nic packet filter

The files begin with a magix 0x11223344 word, that allows the soft-core
to fix any endianness difference (so no hairy mishaps are expected when
switching to a different soft-core). Then the 40-bit command words are
saved as 64-bit vaules, LSB-first. The output file is thus an odd number
of words and no 64-bit alignment is required.

The first three instructions of the packet filter are used to compare
the destination mac address of the frame.  We now use a fake mac address,
and the LM32 code will change it while programming the binary.

Please look at this commit while ignoring white-space, as it changes
indentation while turning #ifdef/#else into if()/else .

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

Theodor-Adrian Stana authored 11 years ago and Grzegorz Daniluk committed 10 years ago

How-to guide for the tool (together with flash-write tool) can be found in
sdbfs.README.

Signed-off-by: Theodor Stana <t.stana@cern.ch>

SQUASH remove flash-read binary: 598d cdf68

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

Theodor-Adrian Stana authored 11 years ago and Grzegorz Daniluk committed 10 years ago

Signed-off-by: Theodor Stana <t.stana@cern.ch>

Theodor-Adrian Stana authored 11 years ago and Grzegorz Daniluk committed 10 years ago

The flash-write tool is operational. The call to read status register
from flash-host is not working yet, and that is to be solved. In the
meantime, there are sleep functions inserted where we're supposed
to poll the status register.

Signed-off-by: Theodor Stana <t.stana@cern.ch>

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

This reads to stdout, in binary format. With "-v" it prints text and
scans the bus too. The examples here below use the same card (and same
data) as in commit "d44ace7e

 w1: complete eeprom low-level support".

   spusa.root# ./tools/wrpc-w1-read -b 2 0 5 | od -t u1 -Ax -w1
   000000  40
   000001  41
   000002  42
   000003 243
   000004 244

   spusa.root# ./tools/wrpc-w1-read -v -b 2 30 6
   ./ohwr/wrpc-sw/tools/wrpc-w1-read: found device 10dc:018d: 0000:02:00.0
   ./ohwr/wrpc-sw/tools/wrpc-w1-read: found device 10dc:018d: 0000:04:00.0
   device 0: 68000801dce56910
   device 1: 5b0000036c567628
   device 2: f70000001eda8242
   device 3: 5f00000040e50143
   Reading device on bus 2: offset 30 (0x1e), len 6
   offset   30 (0x01e):  11 (0x0b)
   offset   31 (0x01f):  22 (0x16)
   offset   32 (0x020):  33 (0x21)
   offset   33 (0x021):  44 (0x2c)
   offset   34 (0x022):  55 (0x37)
   offset   35 (0x023):  66 (0x42)

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

If you find this patch with "git blame" please use "git blame -w"
to have all white-space ignored while associating lines to commits.

This commit has no practical effect but cleanup. I made it
with sed like this:

  git grep -l '[ \t]$' | xargs sed -i 's/[ \t]*$//'

However, I had to manually restore doc/wrpc_mon.png after the fact.
Similarly, I restored the include/hw/*regs.h files, as they
are (most likely) auto-generated.