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5 Commits

Author SHA1 Message Date
Geert Uytterhoeven 4a95b94dbf platforms/ecp5: Fix slewrate configuration 
When building linux-on-litex-vexriscv for OrangeCrab:

    Warning: IOBUF 'spisdcard_clk' attribute 'SLEW' is not recognised (on line 207)
    Warning: IOBUF 'spisdcard_mosi' attribute 'SLEW' is not recognised (on line 210)
    Warning: IOBUF 'spisdcard_cs_n' attribute 'SLEW' is not recognised (on line 214)
    Warning: IOBUF 'spisdcard_miso' attribute 'SLEW' is not recognised (on line 218)

Platforms using litex.build.lattice.LatticePlatform seem to support only
"SLEWRATE", not "SLEW".  Fix the few offenders in the LogicBone and
OrangeCrab platform definitions.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
 2021-01-04 17:08:51 +01:00
Florent Kermarrec a4d05522d4 platforms/ice40/ecp5: add toolchain parameter with default to trellis (ECP5) or icestorm (iCE40). 
Required to simplify simple.py target and use trellis/icestorm as default toolchain.
 2020-11-12 13:33:30 +01:00
Florent Kermarrec c093d0d0fc platforms: cleanup pass to uniformize comments/separators/orders. 2020-11-03 10:48:57 +01:00
Florent Kermarrec 1781be166a general: add SPDX License identifier to header and specify files are part of LiteX-Boards. 2020-08-23 15:00:17 +02:00
Owen Kirby 76a32ba8ec Add Logicbone ECP5 board 
The Logicbone is an Open Source development board for the Lattice ECP5
being developed at https://github.com/oskirby/logicbone
 2020-06-27 03:32:47 -07:00