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mpfs_head.S: Simplify clearing PMP

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Initially clear PMP for all harts, this fixes random warm reset issues.

Signed-off-by: Ville Juven <ville.juven@unikie.com>
This commit is contained in:
Ville Juven
2023-10-11 16:37:29 +03:00
committed by Xiang Xiao
parent 495253385f
commit 0e75e53cc8
1 changed files with 4 additions and 5 deletions
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arch/risc-v/src/mpfs/mpfs_head.S
+4 -5
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@@ -129,6 +129,10 @@ __start:
.option pop .option pop
#ifdef CONFIG_MPFS_BOOTLOADER #ifdef CONFIG_MPFS_BOOTLOADER
/* Clear PMP */
csrw pmpcfg0, zero
csrw pmpcfg2, zero
/* Set all but the boot hart into wfi */ /* Set all but the boot hart into wfi */
@@ -175,11 +179,6 @@ __start:
sd x0, 0(a4) sd x0, 0(a4)
add a4, a4, 8 add a4, a4, 8
blt a4, a5, .clear_l2lim blt a4, a5, .clear_l2lim
/* Clear PMP */
csrw pmpcfg0, zero
csrw pmpcfg2, zero
#endif #endif
/* Set stack pointer to the idle thread stack */ /* Set stack pointer to the idle thread stack */