Ross Thompson
6d2a4b8354
Oups missed files in the last commit.
2021-12-15 10:25:08 -06:00
David Harris
865d5ce0b1
Renamed dtim->ram and boottim ->bootrom
2021-12-14 13:43:06 -08:00
Ross Thompson
af9f97454d
Cleaned up fpga synthesis script.
2021-12-13 18:26:54 -06:00
slmnemo
e39f94b645
Merge branch 'main' of https://github.com/davidharrishmc/riscv-wally into main
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help
2021-12-08 14:09:58 -08:00
slmnemo
f2f15c0495
Removed .* from /wally-pipelined/src/uncore/uart.sv
2021-12-08 14:02:53 -08:00
Ross Thompson
741a21d0df
Fixed some issues with the SDC having a different counter. When this is copied into synthesis the file names where the same and it gave a conflict.
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Remove preload from dtim.
2021-12-08 15:50:15 -06:00
slmnemo
7d614869a1
Removed .*s from wally-pipelined/src/uncore/uncore.sv
2021-12-08 01:03:02 -08:00
Ross Thompson
22721dd923
Added generate around the dtim preload.
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Added readme to explain FPGA.
2021-12-07 13:12:47 -06:00
Ross Thompson
c3c9c327b7
Fixed more constraint issues in fpga.
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Added back in the ILA.
Design does not work yet. Stil having issues with order of automatic
clock and I/O constraint ordering.
Added back in the preload for the boottim.
2021-12-05 15:14:18 -06:00
Ross Thompson
b03ca464f1
Mostly integrated FPGA flow into main branch. Not all tests passing yet.
2021-12-02 18:00:32 -06:00
Ross Thompson
97c73f10ff
Fixed uart for FPGA config after merge. This still needs some work.
2021-11-29 16:07:54 -06:00
Ross Thompson
a871118116
Merge branch 'main' into fpga
2021-11-29 10:10:37 -06:00
Ross Thompson
5642918ead
Merge branch 'main' into fpga
2021-11-29 10:06:53 -06:00
Ross Thompson
1183aed049
Missed another change to uart.
2021-11-23 10:20:47 -06:00
Ross Thompson
3fc370654d
Fixed syntax error which modelsim did not detect in my changes for making uart work with qemu's simulation.
2021-11-23 10:00:32 -06:00
Ross Thompson
f12e7e1b68
Added QEMU hack for initial LCR value in uart.
2021-11-22 15:23:19 -06:00
Ross Thompson
f05a66acd1
Hack added to uart so QEMU simulation can work with an ultra fast baud rate relative to the clock speed.
2021-11-22 15:20:54 -06:00
Ross Thompson
9d3261ed49
Reversed bit order in uart.
2021-11-20 22:43:05 -06:00
Ross Thompson
f4c221f20a
Created separate memory interface for the ddr4 fpga memory from the soc internal memory dtim.
2021-11-17 12:47:19 -06:00
Ross Thompson
23e78c4842
Fixed uart by reversing the bit order on transmit.
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Set prescale to 0.
2021-11-17 10:32:41 -06:00
Ross Thompson
1c9670d739
Have linux booting. Not sure about uart, but uart is now part of the ILA and I can see TX changing.
2021-11-12 17:37:07 -06:00
Ross Thompson
7497422667
Changed several things.
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Removed the need to use async flip flops in SDC.
Added arrs, a synchronizer for reset.
I think this works with the real FPGA hardware.
The last build did not include this arrs but it worked.
2021-11-12 11:13:50 -06:00
Ross Thompson
81054d9168
Fixed issue with dtim (fpga) external abhlite select not triggering.
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Setup the bootloader (bios.s) to copy 127MB and blink LEDs for 5 seconds with 1 second period.
2021-10-25 14:51:54 -05:00
David Harris
61fdb3d902
random lint cleanup
2021-10-23 11:24:36 -07:00
David Harris
d570df864f
IEU lint cleanup
2021-10-23 10:51:53 -07:00
David Harris
d24bece3a8
Lint cleanup
2021-10-23 09:58:52 -07:00
Ross Thompson
d11136c406
Fixed bug with the external memory region selection.
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Updated bios program to copy just 127MB to dram.
2021-10-19 11:23:23 -05:00
Ross Thompson
b3694bfdfd
Fixed boot loader program to start at correct address.
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modified script which converts the ram.txt into preload text file for sdc simulation.
created script to convert ram.txt into binary to write to flash card.
added top level for solo sd card fpga.
2021-10-11 17:22:23 -05:00
Ross Thompson
7d749b201b
added support to due partial fpga simulation.
2021-09-26 15:00:00 -05:00
Ross Thompson
af53657eaf
Merge branch 'sdc' into fpga
2021-09-25 19:33:07 -05:00
Ross Thompson
86524a5f64
Now have software interacting with the initialization and settting the address register.
2021-09-24 18:30:26 -05:00
Ross Thompson
c644e940c2
Updated Imperas test bench to work with the SDC reader.
2021-09-24 11:22:54 -05:00
Ross Thompson
fea439b84d
SDC to ABHLite interface partially done.
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Added SDC to adrdec and uncore.
2021-09-24 10:45:09 -05:00
Ross Thompson
a7be88a43b
Changes to make fpga synthesizable.
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Added preload to test simple program on wally in fpga.
2021-09-22 10:54:13 -05:00
Ross Thompson
c60edb1a04
Merge branch 'main' into fpga
2021-09-13 09:45:59 -05:00
David Harris
dd1e7548ed
Modified rxfull determination in UART, started division
2021-09-12 20:00:24 -04:00
Ross Thompson
af74a8c5cb
Third attempt at fixing the write enables for the icache cacheway.
2021-09-09 15:49:27 -05:00
Ross Thompson
2be625d8b9
Modified invalid plic reads to return 0 rather than deadbeaf.
2021-08-11 16:56:22 -05:00
bbracker
d3059dd04c
fix UART RX FIFO bug where tail pointer can overtake head pointer
2021-07-22 02:09:41 -04:00
bbracker
f9b6bd91f5
fix PC checking during InstrPageFault; fix order of S-mode CSR checking; rename peripheral scopes to not be genblk
2021-07-20 17:55:44 -04:00
David Harris
1f3dfa20f6
flag for optional boottim
2021-07-20 14:46:37 -04:00
bbracker
bc5222e721
put MTIMECMP's reset value back to 0 because the reset value of -1 broke the MCAUSE tests
2021-07-19 16:19:24 -04:00
bbracker
64e0fe4c5a
whoops MTIMECMP is always 64 bits
2021-07-19 15:40:53 -04:00
bbracker
cd469035be
make testbench check the same CSRs that QEMU logs; change CLINT to reset MTIMECMP to -1 so that we don't instantly get a timer interrupt upon reset
2021-07-19 15:13:03 -04:00
David Harris
004cac91e1
Simplified PLIC with generate
2021-07-04 19:17:15 -04:00
David Harris
0aae58abed
Renamed Funct3ToLSU/fromLSU -> SizeToLSU/FromLSU and simplified size muxing in lsuArb
2021-07-04 19:02:56 -04:00
David Harris
b23192cf1b
Gave names to for loops in generate blocks for ease of reference
2021-07-04 18:52:16 -04:00
bbracker
9c84ab436a
for GPIO give priority to clearing interrupts
2021-07-04 17:20:16 -04:00
David Harris
67e191c6f3
Added support for PMP lock bits in csrm and repartitioned design to pass around 8-bit PMPCFG entries
2021-07-04 11:39:59 -04:00
David Harris
accbebfa6f
Commented out some unused modules
2021-07-04 01:40:27 -04:00
