diff options
| author | Achin Gupta <achin.gupta@arm.com> | 2014-06-26 08:59:07 +0100 |
|---|---|---|
| committer | Achin Gupta <achin.gupta@arm.com> | 2014-07-19 23:31:52 +0100 |
| commit | afff8cbdd816ca9b0d71ab54882ce70b21ed84e1 (patch) | |
| tree | 45cd0afb3cdcc7db4fd42669e0430a57fa396768 /include/lib | |
| parent | 754a2b7a092d3cf81767f1b5a6ab61531792e45f (diff) | |
Make enablement of the MMU more flexible
This patch adds a 'flags' parameter to each exception level specific function
responsible for enabling the MMU. At present only a single flag which indicates
whether the data cache should also be enabled is implemented. Subsequent patches
will use this flag when enabling the MMU in the warm boot paths.
Change-Id: I0eafae1e678c9ecc604e680851093f1680e9cefa
Diffstat (limited to 'include/lib')
| -rw-r--r-- | include/lib/aarch64/xlat_tables.h | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/include/lib/aarch64/xlat_tables.h b/include/lib/aarch64/xlat_tables.h index 8e0adc7f..2d4a211b 100644 --- a/include/lib/aarch64/xlat_tables.h +++ b/include/lib/aarch64/xlat_tables.h @@ -31,6 +31,14 @@ #ifndef __XLAT_TABLES_H__ #define __XLAT_TABLES_H__ + +/* + * Flags to override default values used to program system registers while + * enabling the MMU. + */ +#define DISABLE_DCACHE (1 << 0) + +#ifndef __ASSEMBLY__ #include <stdint.h> /* @@ -67,7 +75,8 @@ void mmap_add(const mmap_region_t *mm); void init_xlat_tables(void); -void enable_mmu_el1(void); -void enable_mmu_el3(void); +void enable_mmu_el1(uint32_t flags); +void enable_mmu_el3(uint32_t flags); +#endif /*__ASSEMBLY__*/ #endif /* __XLAT_TABLES_H__ */ |