e31dd225fa
Merge pull request #7 from sifive/temp_verify_blank_check
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riscv: implement skeletons for Memory Blank Check and CRC.
2016-12-08 13:19:00 -08:00
4a0d3fb035
riscv: implement skeletons for Memory Blank Check and CRC. Otherwise you just get a segfault when attempting to perform these actions.
2016-12-07 15:09:35 -08:00
c1da323144
Fix issue #6 : build failure on gcc 6
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Change-Id: If890a6d62fdd55befb9057f83726f60721ac8078
2016-12-01 19:15:55 -08:00
52d7d49d6c
Merge pull request #5 from sifive/format-warning
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Use portable format specifier for size_t
2016-11-30 16:01:43 -08:00
9601429ac7
Use portable format specifier for size_t
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This fixes a gcc warning [-Werror=format] on an i686-pc-linux-gnu host,
which defines size_t as unsigned int instead of long int.
2016-11-30 15:06:04 -08:00
db2ec672b5
Merge pull request #4 from sifive/mwachs5-patch-sckdiv
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Don't write SCKDIV when flashing
2016-11-30 10:19:54 -08:00
ce49da9947
Don't write SCKDIV when flashing
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The target may have already configured its clock to run at a higher frequency and would have set SCKDIV and other dividers at that time. Don't restore the SCKDIV to its default or the flash interface may run too fast and programming will fail.
Otherwise, the default value is fine and there is no need to write SCKDIV.
2016-11-27 21:21:45 -08:00
b8879d81a2
Add timeout to infinite loop.
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Change-Id: I7d005b4779154b4dfe8c9a26f4f0e351f426df9b
2016-11-27 15:09:42 -08:00
364f4b5ab9
Add some timeouts that I ran into.
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Change-Id: I8eeb1c934ceead0d99dcdc618a3f8aa351119cb0
2016-11-25 17:12:50 -08:00
7dd48acdc0
Cope better if the target unexpectedly resets.
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Change-Id: I713f7f8a3afbbb02be0e2f19f4d32778366d37f9
2016-11-25 09:46:55 -08:00
bb7dedcbaa
Fix typo.
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Change-Id: If04ba1103817f772fe55659cb3b5b4533c734f2a
2016-11-23 11:14:00 -08:00
452be58b63
Merge branch 'sifive/add_issi_flash' into riscv
2016-11-19 15:41:20 -08:00
b585e2e324
Fix off-by-one error in assert.
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Change-Id: I86447c747a212175be560170378c655ac801f5a6
2016-11-19 15:40:49 -08:00
f38d70c134
Add the ISSI SPI Flash to the list
2016-11-19 11:05:36 -08:00
8ee0647365
Flash at 8KB/s, using 10,000 byte working area.
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If the working area is large enough, every fespi_write() results in just
a single algorithm execution.
Change-Id: I87a12e29f50ef6ea1f46fbd1edf440f9e54a2162
2016-11-18 10:58:26 -08:00
1551916027
2KB/s, by using the algorithm more.
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Change-Id: If55dcf432f9243355ed22eb8d1559ecdbca3c5c9
2016-11-17 14:33:10 -08:00
8aef60fafa
Base work for using a much smarter algorithm.
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Change-Id: I0bf6af12ac2e3c07ffe3f95ad490eb4a88244a97
2016-11-17 14:18:39 -08:00
c406b4530e
Merge branch 'Og' into enable_flash_prog
2016-11-17 13:44:35 -08:00
18eedf996c
Use algorithm to speed up fespi flash programming.
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It's still really slow, at 854b/s, but it seems to work and it's a lot
of new code.
Change-Id: I9dd057bbcc81a56eb558b4f33ac35f6f03c23588
2016-11-16 17:54:55 -08:00
6686e71bd6
riscv: In FESPI driver, rename 'wip' to 'tx_wait', a more descriptive name.
2016-11-14 16:14:39 -08:00
8de4ab011d
riscv: Correct reading SPI Flash ID
2016-11-07 20:42:43 -08:00
05b12c5c20
riscv: Add first cut of Flash driver for Freedom E platforms. Completely untested.
2016-11-04 19:43:53 -07:00
e51b0360f5
Make fpu regs work even if mstatus.fs is 0.
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Change-Id: I2c283f2de226518ab9a4e0476edada51825b2993
2016-11-01 12:58:37 -07:00
e7a745ed3b
Fix bug with slow targets.
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Halting didn't work right in slow targets, because some code assumed the
register cache is valid before it was guaranteed to be.
Also made dbus_busy_delay and interrupt_high_delay grow faster, so that
on slow targets it takes less time to learn the correct values.
Change-Id: I948a49d4e3cd0638f5449ab94994406319fd5f42
2016-10-27 13:00:26 -07:00
e6e2070692
Add some comments.
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Change-Id: Icd7d5eb370c6c893ec4717c92249f35fb100370a
2016-10-24 14:21:34 -07:00
3eb6cf0fc0
Make CLI step and resume work.
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Change-Id: I027d7032800f909e8d149ed84c11b6e75b75491f
2016-10-20 14:49:23 -07:00
9b0be80d1e
Use reg_cache structure, to make reg command work.
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Change-Id: I9f1d1f2eab66822c3c47284aa91b52cc34998381
2016-10-20 10:42:28 -07:00
4eba841bfe
Print when we're ready for gdb to connect.
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This should help gdbserver.py to connect reliably to really slow targets
(ie. simulators).
Change-Id: I8e9adbaf2ebde11b44e15582f036622a2d00c1f9
2016-10-14 12:40:52 -07:00
3f6c2a9f78
Be quiet when the target is just running normally.
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Change-Id: I7861f16ba6b1b5c1851787ce5d78c02aff0568f6
2016-10-13 10:51:53 -07:00
cb93bb9035
Use an easily changed constant for timeout.
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Change-Id: I7aace463b0bd9916580e950d60b2940879b27b2a
2016-10-11 16:26:19 -07:00
4882de94cc
Display pc to the user in 'monitor reset init'.
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Change-Id: Ifb8df31954dfc5a3badef4f0a29eb510a97310a2
2016-10-10 08:22:51 -07:00
80e8101292
Make OpenOCD build using -Og.
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With -Og gcc doesn't perform as many optimizations, and as a result
warns about some code that it wouldn't otherwise warn about.
These fixes all assign values to otherwise uninitialized variables.
Change-Id: I9a6ea5eadd73673891ecfec568b8b00d78b596a5
Signed-off-by: Tim Newsome <tim@sifive.com>
2016-10-04 10:02:42 -07:00
a08cef7633
Change invalid access from error to user message.
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It's not a failure in the debugger or even a real problem if a user asks
to access memory that's not accessible.
Change-Id: I30b8424d5265d1996fe4826012ed160a83f0bc6c
2016-10-03 08:15:04 -07:00
e273e23f41
Fix off-by-one error in assert.
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Also only do work for debug RAM that actually exists on the target
(exposing the off-by-one error on 32-bit targets).
Change-Id: I37e0005b6a70e949286f1d6494716f3abea03c12
2016-09-29 10:40:50 -07:00
4dbc9962d3
Clear dmode triggers when we first halt the target
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This helps repeated runs of the testsuite pass, and is probably a good
idea in general.
Change-Id: I89ed167968f8b8817c66f1718f374d0c502780c7
2016-09-29 10:23:46 -07:00
78fe0b56db
Deal with dbus being busy in all cases.
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Change-Id: Ifede6e05c3c4538f22a52cd0e9833cf3a9983d04
2016-09-29 08:28:31 -07:00
b04d5e8821
Read idle, and test all debug RAM.
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Read dtmcontrol's idle field to decide how many run-test/idle cycles are
required to communicate with the target.
In riscv_examine(), write and read all of Debug RAM to check the target
is at least somewhat sane.
Change-Id: Ieedb7a50418fa1f5e0d456cde53c52f7fc51662b
2016-09-27 13:06:32 -07:00
c67850b63d
Only write to existing dram. Clear dbus error.
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Old code would write 64 bytes of DRAM if the dbus was busy in
cache_write().
New code clears the dbus error condition when the bus is busy. (This
part is untested.)
Change-Id: Ia396fe819fa1828bb75726d85513b113cc9e13f0
2016-09-27 08:45:51 -07:00
54c65a9a4b
Improve low-level logging.
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Now logging is consistent and more readable.
I did remove most logging during riscv_poll() since it clutters up the
log/screen and is not generally helpful.
2016-09-23 14:16:24 -07:00
08228e6f53
Make more code use the scans "class".
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Helps with consistency, and this is a rare commit that net deletes
lines.
2016-09-23 14:16:24 -07:00
cf1dc0b6cb
Implement hardware triggers that match spec.
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It's basically working, but the following corner cases are failing:
TriggerDmode
TriggerLoadAddressInstant
TriggerStoreAddressInstant
2016-09-23 14:16:24 -07:00
526bbc5284
Optimize read a bit.
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Remove some unnecessary scans.
2016-09-23 14:16:24 -07:00
c68b13ed67
Properly mark the cache as clean after its written
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This reduces the number of scans, but I doubt it noticeably improves
performance.
2016-09-23 14:16:24 -07:00
243233c8b8
Convert some more code for 64-bit.
2016-09-23 14:16:24 -07:00
b04f89076a
Properly write 64-bit PCs.
2016-09-23 14:16:24 -07:00
e3e745abb9
WIP for 64-bit support.
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GPR register writes/reads seem to work.
2016-09-23 14:16:24 -07:00
7927e90a42
Prevent the State Machine from moving during runtest
2016-09-23 14:16:24 -07:00
2f1b6b5803
Stop using conditional writes.
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It doesn't help, and makes the spec more complex. Now that I've proven
OpenOCD doesn't need it, I'll remove it from the spec.
2016-09-23 14:16:24 -07:00
5dbad6b0c9
Check for business in block reads.
2016-09-23 14:16:24 -07:00
f8b0f4bf29
Check for exceptions in reads and writes.
2016-09-23 14:16:23 -07:00
Tim Newsome
Megan Wachs
Albert Ou