riscv/rocket-chip
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34 Commits

Author SHA1 Message Date
Andrew Waterman 832e56d3c7 Fix toBits/toUInt/toSInt deprecation warnings 2016-07-31 17:13:52 -07:00
Howard Mao 59d700bf66 fix combinational loop in NASTI -> HASTI converter 2016-07-15 18:45:37 -07:00
Howard Mao 897e6ccf8a fix Hasti and Smi converters 2016-07-15 15:39:00 -07:00
Wesley W. Terpstra ed9fcea7f8 hasti: correct fix to locking 2016-06-08 16:28:30 -07:00
Wesley W. Terpstra ad4e4f19be Revert "Don't rely on Mux1H output when no inputs are hot" 
This reverts commit b912b7cd1263d7f3b63e6fcb052d9d7493d1b970.
 2016-06-08 16:28:30 -07:00
Wesley W. Terpstra 3393d4362b hasti: fix test SRAM depth 2016-06-08 16:28:30 -07:00
Wesley W. Terpstra 695be2f0ae hasti: work-around unsupported 0-width signals 2016-06-01 16:38:49 -07:00
Howard Mao 8983b0e865 hopefully the last fix for AXI -> AHB converter 2016-06-01 15:01:52 -07:00
Howard Mao 53a0e6cb9c another fix for AXI -> AHB converter 2016-06-01 11:35:36 -07:00
Howard Mao d0988902f2 fix NASTI -> HASTI bridge 2016-05-31 19:47:50 -07:00
Andrew Waterman 56897f707a Don't rely on Mux1H output when no inputs are hot 2016-05-27 13:38:01 -07:00
Andrew Waterman 056d7ec93a Drive hmastlock low in Nasti-Hasti converter 2016-05-27 12:23:18 -07:00
Andrew Waterman e036d3a04a Chisel3: gender issue 2016-05-26 15:59:08 -07:00
Wesley W. Terpstra 1c8745dfd2 ahb: backport to chisel2 
Merges #16
 2016-05-25 12:11:26 -07:00
Wesley W. Terpstra b921bae107 ahb: eliminate trait abused for constants 2016-05-24 14:20:45 -07:00
Wesley W. Terpstra 200c69c106 ahb: support hmastlock acquistion of crossbar 2016-05-24 14:20:45 -07:00
Wesley W. Terpstra e1e8eda419 ahb: add a test SRAM 2016-05-24 14:20:42 -07:00
Wesley W. Terpstra 1db40687c6 ahb: eliminate now-unnecesary non-standard hreadyin 2016-05-24 14:14:22 -07:00
Wesley W. Terpstra 15cad8414d ahb: put signals in the order they appear in signal traces in the spec 2016-05-24 14:14:22 -07:00
Wesley W. Terpstra f30f8d9f79 ahb: reduce obsolete degenerate cases of a crossbar 2016-05-24 14:14:22 -07:00
Wesley W. Terpstra 0368b6db6b ahb: replace defective crossbar with a functional one 
The previous crossbar had the following bugs:
  1. a bursting master could be preempted
     the AHB-lite spec requires a slave receive the entire burst

  2. a waited master could be replaced
     the AHB-lite spec requires haddr/etc to remain unchanged

  3. hmastlock did no ensure exclusive access
     atomic operations could be pre-empted
 2016-05-24 14:14:22 -07:00
Wesley W. Terpstra 2b37f37335 ahb: helper methods 2016-05-24 14:14:21 -07:00
Wesley W. Terpstra ef2aae26a8 ahb: rename hreadyout to standard hready, mark hreadyin for death 2016-05-24 14:14:21 -07:00
Wesley W. Terpstra 2f8a77f27a ahb: include all AHB-lite constants 2016-05-24 14:14:21 -07:00
Wesley W. Terpstra 93447eb274 ahb: make hasti parameters location sensitive 2016-05-24 14:14:17 -07:00
Howard Mao 44740cb6b2 parameterize Hasti address and data bits 2016-05-06 11:30:50 -07:00
Howard Mao 64991d3947 add AXI to AHB converter 2016-05-06 11:30:50 -07:00
Howard Mao c8fa7c43a9 fix Chisel3 deprecation warnings 2016-01-14 13:38:00 -08:00
Henry Cook 9c3cd8f9fe depend on external cde library 2015-10-21 18:16:03 -07:00
Henry Cook adcd77db36 Removed all traces of params 2015-10-05 20:33:55 -07:00
Andrew Waterman f7d9628de2 Avoid needless use of Vec 2015-08-27 09:40:52 -07:00
Andrew Waterman 3a1dad7994 Use Vec.apply, not Vec.fill, for type nodes 2015-08-27 09:40:24 -07:00
Andrew Waterman eb57433f43 Bits -> UInt 2015-07-30 23:57:53 -07:00
Henry Cook c27945c094 source and build files. source code pulled from uncore and zscale repos 2015-07-29 18:02:58 -07:00