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| Melkhior | @_florent_ hello ; to test the FPU, do we need to use the 'fpu' branch from VexRiscv in pythondata-cpu-vexriscv-smp ? | 11:06 |
|---|---|---|
| Melkhior | currently linux-on-litex-veriscv fails to regenerate the verilog (for me) as VexRiscv doesn't understand --fpu= but litex already pass it unconditionally | 11:08 |
| Melkhior | (trivial to fix if you dan't want the FPU) | 11:08 |
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| rozpruwacz1 | _florent_: I pushed pull request to litex with change that allows the GPIOIn module to trigger interrupt on both edges. This is required for example for the "card detect" signal if the sd card in spi mode to work in interrupt mode (without this only polling mode is possible). https://github.com/enjoy-digital/litex/pull/857 | 12:36 |
| rozpruwacz1 | The change was made in a way to require minimal changes to linux gpio driver from https://github.com/litex-hub/linux/pull/3 | 12:36 |
| Melkhior | pythondata-cpu-vexriscv-smp now uses a commit from 'dev', I guess that the branch I need :-) | 12:41 |
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| Melkhior | _florent_ Added a FPU and recompiled opensbi/kernel/buildroot with hard-float ABI (ilp32d), but init blows up at start-up: | 17:55 |
| Melkhior | [ 7.460816] init[1]: unhandled signal 11 code 0x1 at 0x95c4028c | 17:55 |
| Melkhior | [ 7.462357] CPU: 0 PID: 1 Comm: init Not tainted 5.11.0-rc7 #2 | 17:55 |
| Melkhior | [ 7.463997] epc: 95c4028c ra : 95b6b7fe sp : 9d77f610 | 17:55 |
| Melkhior | [ 7.465014] gp : c057a4a8 tp : 00000000 t0 : 0000000a | 17:55 |
| Melkhior | [ 7.466194] t1 : 95b5a9cc t2 : 00000000 s0 : 9d77fc40 | 17:55 |
| Melkhior | [ 7.467379] s1 : 95b73a1c a0 : 9d77f630 a1 : 00000000 | 17:55 |
| Melkhior | [ 7.468929] a2 : 9d77f7d8 a3 : 00000024 a4 : 00000000 | 17:55 |
| Melkhior | [ 7.470117] a5 : 9d77f628 a6 : 7efefeff a7 : 464d4824 | 17:55 |
| Melkhior | [ 7.471319] s2 : 9d77f760 s3 : 000b2f08 s4 : 95b73a40 | 17:55 |
| Melkhior | [ 7.472816] s5 : 95b73a40 s6 : 00000000 s7 : 00000000 | 17:55 |
| Melkhior | [ 7.474001] s8 : 00000000 s9 : 9d77f7cc s10: 9d77f7d8 | 17:55 |
| Melkhior | [ 7.475189] s11: 95b72f30 t3 : 95b6a638 t4 : 00000110 | 17:55 |
| Melkhior | [ 7.476624] t5 : 756e6900 t6 : 6ffffe35 | 17:55 |
| Melkhior | [ 7.477409] status: 00000020 badaddr: 95c4028c cause: 0000000c | 17:55 |
| Melkhior | [ 7.479511] Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b | 17:55 |
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