diff options
Diffstat (limited to 'lib/xlat_tables/aarch32/xlat_tables.c')
| -rw-r--r-- | lib/xlat_tables/aarch32/xlat_tables.c | 20 |
1 files changed, 14 insertions, 6 deletions
diff --git a/lib/xlat_tables/aarch32/xlat_tables.c b/lib/xlat_tables/aarch32/xlat_tables.c index e8408da89..316a60e70 100644 --- a/lib/xlat_tables/aarch32/xlat_tables.c +++ b/lib/xlat_tables/aarch32/xlat_tables.c @@ -130,13 +130,21 @@ void enable_mmu_secure(unsigned int flags) tlbiall(); /* - * Set TTBCR bits as well. Set TTBR0 table properties as Inner - * & outer WBWA & shareable. Disable TTBR1. + * Set TTBCR bits as well. Set TTBR0 table properties. Disable TTBR1. */ - ttbcr = TTBCR_EAE_BIT | - TTBCR_SH0_INNER_SHAREABLE | TTBCR_RGN0_OUTER_WBA | - TTBCR_RGN0_INNER_WBA | - (32 - __builtin_ctzl((uintptr_t)PLAT_VIRT_ADDR_SPACE_SIZE)); + if (flags & XLAT_TABLE_NC) { + /* Inner & outer non-cacheable non-shareable. */ + ttbcr = TTBCR_EAE_BIT | + TTBCR_SH0_NON_SHAREABLE | TTBCR_RGN0_OUTER_NC | + TTBCR_RGN0_INNER_NC | + (32 - __builtin_ctzl((uintptr_t)PLAT_VIRT_ADDR_SPACE_SIZE)); + } else { + /* Inner & outer WBWA & shareable. */ + ttbcr = TTBCR_EAE_BIT | + TTBCR_SH0_INNER_SHAREABLE | TTBCR_RGN0_OUTER_WBA | + TTBCR_RGN0_INNER_WBA | + (32 - __builtin_ctzl((uintptr_t)PLAT_VIRT_ADDR_SPACE_SIZE)); + } ttbcr |= TTBCR_EPD1_BIT; write_ttbcr(ttbcr); |