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🐛 [PMP] fix pmpaddr CSR layout #283

Merged
merged 6 commits into from
Mar 2, 2022
Merged

🐛 [PMP] fix pmpaddr CSR layout #283

merged 6 commits into from
Mar 2, 2022

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stnolting
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This PR fixes a bug in the layout of the pmpaddr physical memory protection CSRs.

According to the RISC-V specs. these CSRs are use to configure bits 33:2 of the region's physical address. Note that the two most-significant bits (33:31) are hardwired to zero as the NEORV32 does not support virtual addresses (by default).

@stnolting stnolting added bug Something isn't working as expected risc-v compliance Modification to comply with official RISC-V specs. labels Mar 2, 2022
@stnolting stnolting self-assigned this Mar 2, 2022
@stnolting stnolting added HW Hardware-related SW Software-related labels Mar 2, 2022
@stnolting stnolting marked this pull request as ready for review March 2, 2022 04:32
@stnolting stnolting merged commit 1296718 into main Mar 2, 2022
@stnolting stnolting deleted the fix_pmpaddr_bug branch March 2, 2022 05:39
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