[rtems commit] bsp/arm: Report correct maximal cache line length for ARM Cortex-A + L2C-310.

[Pavel Pisa]

Module:    rtems
Branch:    4.11
Commit:    886b962e7b8c7c15f7d849925d7ca48482a05bca
Changeset: http://git.rtems.org/rtems/commit/?id=886b962e7b8c7c15f7d849925d7ca48482a05bca

Author:    Pavel Pisa <pisa at cmp.felk.cvut.cz>
Date:      Sun Jul  3 09:30:20 2016 +0200

bsp/arm: Report correct maximal cache line length for ARM Cortex-A + L2C-310.

Updates #2782
Updates #2783

---

 c/src/lib/libbsp/arm/shared/arm-l2c-310/cache_.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/c/src/lib/libbsp/arm/shared/arm-l2c-310/cache_.h b/c/src/lib/libbsp/arm/shared/arm-l2c-310/cache_.h
index 35c8002..e83b55c 100644
--- a/c/src/lib/libbsp/arm/shared/arm-l2c-310/cache_.h
+++ b/c/src/lib/libbsp/arm/shared/arm-l2c-310/cache_.h
@@ -72,6 +72,10 @@ extern "C" {
 /* These two defines also ensure that the rtems_cache_* functions have bodies */
 #define CPU_DATA_CACHE_ALIGNMENT ARM_CACHE_L1_CPU_DATA_ALIGNMENT
 #define CPU_INSTRUCTION_CACHE_ALIGNMENT ARM_CACHE_L1_CPU_INSTRUCTION_ALIGNMENT
+#if defined(__ARM_ARCH_7A__)
+/* Some/many ARM Cortex-A cores have L1 data line lenght 64 bytes */
+#define CPU_MAXIMAL_CACHE_ALIGNMENT 64
+#endif
 #define CPU_CACHE_SUPPORT_PROVIDES_RANGE_FUNCTIONS \
   ARM_CACHE_L1_CPU_SUPPORT_PROVIDES_RANGE_FUNCTIONS
 #define CPU_CACHE_SUPPORT_PROVIDES_CACHE_SIZE_FUNCTIONS