| Age | Commit message (Collapse) | Author | |
|---|---|---|---|
| 2017-07-26 | only save/restore caller registers on trap entry | Drew Barbier | |
| 2017-07-26 | fixed TRAP_EXIT macro. TRAP_ENTRY/EXIT2 only saves/restores callee | Drew Barbier | |
| registers | |||
| 2017-07-25 | too many .aling 2's | Drew Barbier | |
| 2017-07-25 | added vectored interrupt example | Drew Barbier | |
| 2017-06-14 | Add a SMP example | Palmer Dabbelt | |
| This just prints "hello world" on two cores. It contains an example of how to initialize a multi-core system using IPIs, and a simple spin lock. | |||
| 2017-06-14 | Call puts instead of printf when printing constants | Palmer Dabbelt | |
| printf doesn't fit in the scratchpad, but since there's really no reason to call it on constant strings it can be replaced with puts. With this change, the "hello" example fits in the scratchpad. | |||
| 2017-06-14 | Add linker scripts that target the scratchpad | Palmer Dabbelt | |
| Everything still defaults to the flash, but users can optionally select the scratchpad. Note that you have to be pretty careful about your scratchpad programs, most of them won't fit. For example, printf is too big to fit in the scratchpad. | |||
| 2017-06-14 | New Freedom Studio Examples (#66) | Megan Wachs | |
| * examples ported to ilg build plugin * project cleanup * CoreplexIP-E31 ilg projects * E51FPGA ilg projects * Tested Debug * debug launch files * E31 Debug Launch Files * removed typo project * E51 launch files. Forgotten E31 File * Missing coreplexip files * examples ported to ilg build plugin * project cleanup * CoreplexIP-E31 ilg projects * E51FPGA ilg projects * Tested Debug * debug launch files * E31 Debug Launch Files * removed typo project * E51 launch files. Forgotten E31 File * Missing coreplexip files * starting fresh * HiFive1 demo_gpio and libwrap * hifive1 hello * debug launchers for hello and demo_gpio * hifive1 led_fade * led_fade: Since E300 Arty Dev Kit doesn't have a PRCI, the led_fade demo doesn't really work on it. * update include paths to ease generating stand-alone zips * Adding E51 Examples * E51 demo launch files * E31 Demos * E31 demo launch files | |||
| 2017-06-10 | Just lump all the RAM sections together | Palmer Dabbelt | |
| Since our loader doesn't support multiple sections anyway, there's really no reason to have all these sections floating around. They're causing trouble due to misalignment so it's easiest to just group them together so we can properly enforce alignment. | |||
| 2017-06-09 | Use the correct global pointer symbol | Palmer Dabbelt | |
| 2017-06-09 | Don't use .section\nALIGN, reorder sdata and srodata | Palmer Dabbelt | |
| I'm hoping this will make everything more likely to align. We can't use the other mechanism because our loader is lazy and assumes all the sections are contiguous. | |||
| 2017-06-09 | Don't call _{init,fini} in start.S, we call libc_{init,fini}_arry | Palmer Dabbelt | |
| 2017-06-09 | Print the exit codes as unsigned numbers | Palmer Dabbelt | |
| Without this I get a message that looks like Program has exited with code 0x/0000008 which doesn't make any sense. This prints Progam has exited with code:0x80000008 | |||
| 2017-06-08 | Specify alignment on the .sdata and .srodata sections | Palmer Dabbelt | |
| Without these alignment directives the sections are only required to be aligned on word-sized boundries, but we sometimes require double-word alignment. This allows the linker to sanely emit these sections. | |||
| 2017-05-08 | revert back | Drew Barbier | |
| 2017-05-07 | changed write_hex to new def | Drew Barbier | |
| 2017-05-07 | Merge remote-tracking branch 'origin/master' into freedom-studio | Drew Barbier | |
| 2017-05-05 | coreplex-e51: Correct width of MCAUSE | mwachs5 | |
| 2017-05-05 | coreplexip-e51-arty: MCAUSE is XLEN-bits wide. | Megan Wachs | |
| 2017-05-05 | updated demo_gpio | Drew Barbier | |
| 2017-05-04 | Update SDK For E31/E51 Coreplex IP Evaluation | Megan Wachs | |
| 2017-02-01 | Additional PRCI driver support. Make the code usable by C++ programs as well. | Megan Wachs | |
| 2017-01-31 | add a 'driver' common PRCI functions. | Megan Wachs | |
| 2017-01-31 | Move plic_driver code to a common location. | Megan Wachs | |
| 2017-01-24 | Use consistent OpenOCD config for Arty and HiFive1 | Megan Wachs | |
| 2017-01-11 | reduce code duplication and apply the same flags to Arty board | mwachs5 | |
| 2017-01-11 | Add the 'bootloader' which ships on HiFive1 Boards. | mwachs5 | |
| 2017-01-03 | Regularize timing code | Andrew Waterman | |
| Provide get_timer_value() and get_timer_freq() and use them. On Arty, they use mcycle and the known-fixed core frequency, whereas on HiFive1 they use mtime and the known-fixed mtime frequency. | |||
| 2017-01-03 | Improve HiFive1 CPU frequency measurement routine | Andrew Waterman | |
| - Warm up I$ first. - Correct for integer division truncation error. - Wait for an RTC clock edge before starting the timing loop, which removes an error proportional to the number of loop iterations, allowing us to run for far less time. | |||
| 2017-01-03 | Keep mtvec 4-byte aligned | Andrew Waterman | |
| 2016-12-20 | Separate .text.unlikely and .text.startup from .text | Andrew Waterman | |
| This improves the instruction stream's spatial locality. | |||
| 2016-12-20 | Avoid jal to weak symbols | Andrew Waterman | |
| The symbol may be overridden and end up out of range of JAL. | |||
| 2016-12-20 | Pass argc and argv to main() | Andrew Waterman | |
| 2016-12-17 | Merge pull request #29 from sifive/remove_srst_delay | Megan Wachs | |
| Remove unncessary srst delay when connecting with OpenOCD to HiFive1 | |||
| 2016-12-17 | Remove unncessary srst delay when connecting with OpenOCD to HiFive1 | Megan Wachs | |
| 2016-12-17 | Correct init/fini functions for Arty Dev Kit | Megan Wachs | |
| 2016-12-14 | Move start.S and entry.S to a common directory | Albert Ou | |
| 2016-12-14 | Merge pull request #25 from sifive/add_srst_option | Megan Wachs | |
| hifive1: Update OpenOCD Config script to optionally allow pulsing SRST | |||
| 2016-12-14 | hifive1: Update OpenOCD Config script to optionally allow pulsing SRST | Megan Wachs | |
| 2016-12-14 | Refactor libc stubs into libwrap | Albert Ou | |
| The --wrap feature of GNU ld supports a cleaner framework for linking in alternative implementations of libc functions without cpp hacks. Place wrappers in separate object files to reduce static code size. | |||
| 2016-12-13 | Use more standard form of _init() | Megan Wachs | |
| 2016-12-13 | Use cleaner .S files | Megan Wachs | |
| 2016-12-11 | Add some missing LICENSE headers. | Megan Wachs | |
| 2016-12-11 | platform: add more defines which are generally needed | Megan Wachs | |
| 2016-12-09 | demo_gpio: Make the demo more interesting with interrupts that actually do ↵ | Megan Wachs | |
| things. | |||
| 2016-12-09 | demo_gpio: Correct trap_entry handling to enable timer/ext interrupts | Megan Wachs | |
| 2016-12-07 | Merge pull request #17 from sifive/enable-fpu | Scott Johnson | |
| Enable FPU in MSTATUS CSR during init | |||
| 2016-12-07 | Initialize FPU properly | Scott Johnson | |
| * Only attempts if FPU actually implemented in design * Also initializes rounding modes, which are undefined at reset | |||
| 2016-12-07 | Place .init_array/.fini_array sections in flash instead of RAM | Albert Ou | |
| This appears to resolve the issue of .sdata being assigned an incorrect LMA (ld warning "section `.sdata' can't be allocated in segment 1"). | |||
| 2016-12-07 | Deduplicate freedom-e300-arty files | Albert Ou | |
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index : freedom-e-sdk | |
| my bad beginner RISC-V assembly LED blinking code. | silvan |
| summaryrefslogtreecommitdiff |