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lib: sbi: Don't clear mseccfg.MML bit in sbi_hart_smepmp_configure()

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The mseccfg.MML bit is a sticky bit which remains unchanged once set
so no need to clear it in sbi_hart_smepmp_configure().

Signed-off-by: Anup Patel <apatel@ventanamicro.com>
Signed-off-by: Mayuresh Chitale <mchitale@ventanamicro.com>
This commit is contained in:
Anup Patel 2023-09-07 17:19:43 +05:30 • committed by Anup Patel
parent bff27c1fb4
commit 5240d312d3
1 changed files with 2 additions and 4 deletions
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6
lib/sbi/sbi_hart.c
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@ -360,12 +360,10 @@ static int sbi_hart_smepmp_configure(struct sbi_scratch *scratch,
unsigned long pmp_addr;
/*
* Set the RLB and clear MML so that, we can write to
* entries without enforcement even if some entries
* are locked.
* Set the RLB so that, we can write to PMP entries without
* enforcement even if some entries are locked.
*/
csr_set(CSR_MSECCFG, MSECCFG_RLB);
csr_clear(CSR_MSECCFG, MSECCFG_MML);
/* Disable the reserved entry */
pmp_disable(SBI_SMEPMP_RESV_ENTRY);