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3d68246d28
Release notes/info: https://github.com/riscv-software-src/opensbi/releases/tag/v1.4 Bump dependent u-boot ports. Sponsored by: The FreeBSD Foundation
19 lines
572 B
C
19 lines
572 B
C
--- lib/sbi/sbi_hart.c.orig 2023-12-27 03:02:58.000000000 -0400
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+++ lib/sbi/sbi_hart.c 2024-01-11 14:10:09.723340000 -0400
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@@ -523,6 +523,16 @@
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if (!pmp_count)
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return 0;
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+ /*
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+ * Disable the PMP for the sifive/fu540 platform, required to work
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+ * around a hardware errata.
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+ */
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+ extern int need_pmp_war;
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+ if (need_pmp_war) {
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+ pmp_set(0, PMP_R | PMP_W | PMP_X, -1, __riscv_xlen);
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+ return 0;
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+ }
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+
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pmp_log2gran = sbi_hart_pmp_log2gran(scratch);
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pmp_bits = sbi_hart_pmp_addrbits(scratch) - 1;
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pmp_addr_max = (1UL << pmp_bits) | ((1UL << pmp_bits) - 1);
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