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lib: sbi: Configure PMP late in coldboot and warmboot path

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We factor-out PMP configuration from sbi_hart_init() as a separate
sbi_hart_pmp_configure() function and do the PMP configuration very
late in coldboot and warmboot path just before platform_final_init().

Eventually, this enable us to configure PMP totally based on OpenSBI
domain where OpenSBI domains can be parsed from device-tree in any of
the platform operations except platform_final_init().

Signed-off-by: Anup Patel <anup.patel@wdc.com>
Reviewed-by: Atish Patra <atish.patra@wdc.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
This commit is contained in:
Anup Patel
2020-09-20 10:09:32 +05:30
committed by Anup Patel
parent a12d46a5e7
commit a126886bfa
3 changed files with 11 additions and 2 deletions
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4
lib/sbi/sbi_hart.c
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@@ -224,7 +224,7 @@ int sbi_hart_pmp_check_addr(struct sbi_scratch *scratch,
return SBI_OK;
}
static int pmp_init(struct sbi_scratch *scratch, u32 hartid)
int sbi_hart_pmp_configure(struct sbi_scratch *scratch)
{
u32 pmp_idx = 0;
unsigned long fw_start, fw_size_log2;
@@ -462,7 +462,7 @@ int sbi_hart_init(struct sbi_scratch *scratch, u32 hartid, bool cold_boot)
if (rc)
return rc;
return pmp_init(scratch, hartid);
return 0;
}
void __attribute__((noreturn)) sbi_hart_hang(void)