feature.c: Support C920V3 and Coprocessor Configuration #41
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Signed-off-by: Chen Pei <[email protected]>
Signed-off-by: Chen Pei <[email protected]>
guoren83
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Nov 18, 2024
feature.c
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| if (boot_flag & FLAG_RV64XT32) | ||
| csr_write(CSR_MXSTATUS, csr_read(CSR_MXSTATUS) | (1ULL << 63)); | ||
| if (boot_flag & FLAG_RV64XTSV32) | ||
| csr_set(CSR_MXSTATUS, 1ULL << 63); |
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README.adoc
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| # set *(unsigned int *)$flag_addr = 0x1 | ||
| # This flag.BIT[1] makes zsb enable COPINSTEE by setting mxstatus.[24]=1/mxstatus.[22]=0 |
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mxstatus.[24]=1 && mxstatus.[22]=0
README.adoc
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| @@ -310,8 +310,10 @@ set *(unsigned long *)($dyninfo_addr + 32) = 0 | |||
| set *(unsigned long *)($dyninfo_addr + 40) = -1 | |||
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| # Set boot flag for CPU functional setting | |||
| # This flag.BIT[0] makes zsb enable RV64XT32 by setting mxstatus.[63]=1 | |||
| # This flag.BIT[0] makes zsb enable RV64XTSV32 by setting mxstatus.[63]=1 | |||
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