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2018-07-02accessors for other clic registersDrew Barbier
2018-07-02add busy wait and extra buttons/irqDrew Barbier
2018-07-02Delete clic_vectoredDrew Barbier
2018-07-02dont use pre-empt with buttonsDrew Barbier
2018-07-02e2 and clic startDrew Barbier
2018-06-29Merge pull request #94 from sifive/clicPalmer Dabbelt
Add a CLIC interrupt example
2018-06-29Add a CLIC interrupt examplePalmer Dabbelt
This example is fairly simple, but it does at least demonstrate how to use a C-based preemptable interrupt handler that's been registered in CLIC mode on a SiFive E21.
2018-03-30Merge pull request #89 from trabucayre/spi_fix_sckmodeBunnaroath Sou
bsp:devices:spi.h: fix sckmode fields value
2018-03-29bsp:devices:spi.h: fix sckmode fields valueGwenhael Goavec-Merou
2018-02-03Merge pull request #87 from sifive/asmdbarbi1
asm only program
2018-01-26asm only programDrew Barbier
2018-01-26restore entry.SDrew Barbier
2018-01-23Merge pull request #86 from sifive/fs3dbarbi1
Fs3
2018-01-23remove erroneous project fileDrew Barbier
2018-01-22remove DS_StoresDrew Barbier
2018-01-09project updatesDrew Barbier
2018-01-04fix project file and remove libwrapDrew Barbier
2018-01-04fix E31 dhrystone configDrew Barbier
2018-01-04remove includesDrew Barbier
2018-01-04remove libwrap referenceDrew Barbier
2018-01-04remove libwrap referenceDrew Barbier
2018-01-04E31 FS dhrystone projectDrew Barbier
2018-01-04add FS dhrystone projectDrew Barbier
2018-01-04remove duplicated pathsDrew Barbier
2018-01-04remove wrap referenceDrew Barbier
2018-01-03E51 FS project updatesDrew Barbier
2018-01-03remove E51 wrap projectDrew Barbier
2018-01-03remove wrap projectDrew Barbier
2018-01-03HiFive1 Project UpdatesDrew Barbier
2018-01-03wrap not necessaryDrew Barbier
2018-01-03E31Arty FS project updatesDrew Barbier
2018-01-02Merge commit '86b06dccf1f09d5e7ac88acfb4d261062fc4a0aa' into fs3Drew Barbier
2018-01-02Merge pull request #84 from sifive/weak_under_aliasPalmer Dabbelt
Add _FUNC aliases for newlib-2.5.0
2018-01-02Add _FUNC aliases for newlib-2.5.0Palmer Dabbelt
I'm not sure what the policy actaully is here, but some newlib functions now have an extra underscore before them. This defines a bunch of aliases and some more wrappers to link against the correct newlib functions for 2.5.0 but maintain compatibility with 2.4.0.
2018-01-02updated project filesDrew Barbier
2018-01-02Merge commit 'cee980238e2dbd7c9af0eb79bd5621a4dc73c234' into fs3Drew Barbier
2017-12-31Bump riscv-gnu-toolchain and openocd for releasePalmer Dabbelt
2017-12-28udpated launch filesDrew Barbier
2017-12-28project and debug launch updates for beta 3Drew Barbier
2017-11-21Merge pull request #82 from sifive/e51dhrystonedbarbi1
Make space for e51 dhrystone
2017-11-21make some space forDrew Barbier
2017-11-21Merge pull request #81 from sifive/dhrystone-artyPalmer Dabbelt
Dhrystone arty
2017-11-21The E31 and E51 have 16KiB of RAMDrew Barbier
2017-11-21coreplexip dhrystone updatesDrew Barbier
2017-11-21Merge pull request #79 from sifive/small-putsPalmer Dabbelt
Implement a smaller puts
2017-11-21Implement a smaller putsPalmer Dabbelt
The e31's init.c calls puts intsead of printf, which oddly enough is a lot bigger: since we wrap printf, puts pulls in a lot of newlib. This adds a wrapped puts so it's very small.
2017-11-20dhrystone score to reflect current resultDrew Barbier
2017-11-20Update dhrystone sectionDrew Barbier
2017-11-17Merge pull request #78 from sifive/dhrystonePalmer Dabbelt
Speed up Dhrystone on the HiFive1
2017-11-17Speed up Dhrystone on the HiFive1Palmer Dabbelt
There's a handful of things that went wrong here: * The read-only data sections were mapped to flash, which is very slow. I just put them in the data segment, so they end up in the scratchpad. This is about a 10x hit, so it's really important. * The toolchain was an old version, which didn't have a fast memcpy implementation on 32-bit systems. This is about a 2x hit. * Some compiler flags were incorrect, including * -Os instead of -O3 * Missing -mexplicit-relocs * Missing -DNOENUM * Missing -falign-functions=4 I haven't checked how much those hurt With this, I get $ make software BOARD=freedom-e300-hifive1 PROGRAM=dhrystone LINK_TARGET=dhrystone $ make upload BOARD=freedom-e300-hifive1 PROGRAM=dhrystone LINK_TARGET=dhrystone Execution starts, 10000000 runs through Dhrystone Execution ends Final values of the variables used in the benchmark: Int_Glob: 5 should be: 5 Bool_Glob: 1 should be: 1 Ch_1_Glob: A should be: A Ch_2_Glob: B should be: B Arr_1_Glob[8]: 7 should be: 7 Arr_2_Glob[8][7]: 10000010 should be: Number_Of_Runs + 10 Ptr_Glob-> Ptr_Comp: -2147470264 should be: (implementation-dependent) Discr: 0 should be: 0 Enum_Comp: 2 should be: 2 Int_Comp: 17 should be: 17 Str_Comp: DHRYSTONE PROGRAM, SOME STRING should be: DHRYSTONE PROGRAM, SOME STRING Next_Ptr_Glob-> Ptr_Comp: -2147470264 should be: (implementation-dependent), same as above Discr: 0 should be: 0 Enum_Comp: 1 should be: 1 Int_Comp: 18 should be: 18 Str_Comp: DHRYSTONE PROGRAM, SOME STRING should be: DHRYSTONE PROGRAM, SOME STRING Int_1_Loc: 5 should be: 5 Int_2_Loc: 13 should be: 13 Int_3_Loc: 7 should be: 7 Enum_Loc: 1 should be: 1 Str_1_Loc: DHRYSTONE PROGRAM, 1'ST STRING should be: DHRYSTONE PROGRAM, 1'ST STRING Str_2_Loc: DHRYSTONE PROGRAM, 2'ND STRING should be: DHRYSTONE PROGRAM, 2'ND STRING Microseconds for one run through Dhrystone: 1.3 Dhrystones per Second: 714285.6 which is 1.55 DMIPS/MHz at 262 MHz. It's still a bit slower than our current stuff, but I don't remember what was actually in the HiFive1 so I'm not sure what we should be getting. I verified the clock is accurate with a stopwatch. I haven't bothered to go look through the binary, but I think we're about 10 cycles off so it should be managable.
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