diff options
Diffstat (limited to 'c/src/lib/libcpu/powerpc/rtems/powerpc/powerpc.h')
| -rw-r--r-- | c/src/lib/libcpu/powerpc/rtems/powerpc/powerpc.h | 19 |
1 files changed, 17 insertions, 2 deletions
diff --git a/c/src/lib/libcpu/powerpc/rtems/powerpc/powerpc.h b/c/src/lib/libcpu/powerpc/rtems/powerpc/powerpc.h index 2a0b9bb547..4b1ed24529 100644 --- a/c/src/lib/libcpu/powerpc/rtems/powerpc/powerpc.h +++ b/c/src/lib/libcpu/powerpc/rtems/powerpc/powerpc.h @@ -91,6 +91,17 @@ extern "C" { #define PPC_LOW_POWER_MODE_NONE 0 #define PPC_LOW_POWER_MODE_STANDARD 1 +/** + * @brief For boards with no cache set PPC_CACHE_ALIGNMENT to this value. + */ +#define PPC_NO_CACHE_ALIGNMENT 4 + +/** + * @brief Used to define PPC_CACHE_ALIGN_POWER for boards with no cache (and + * PPC_NO_CACHE_ALIGNMENT defined). + */ +#define PPC_NO_CACHE_ALIGNMENT_POWER 2 + /* * Figure out all CPU Model Feature Flags based upon compiler * predefines. @@ -129,7 +140,7 @@ extern "C" { #elif defined(mpc555) /* Copied from mpc505 */ -#define PPC_CACHE_ALIGNMENT 16 +#define PPC_CACHE_ALIGNMENT PPC_NO_CACHE_ALIGNMENT /* Added by querbach@realtime.bc.ca */ #define PPC_LOW_POWER_MODE PPC_LOW_POWER_MODE_STANDARD @@ -145,7 +156,9 @@ extern "C" { * to get the setting correct. */ -#define PPC_CACHE_ALIGNMENT 16 +#define CPU_MODEL_NAME "PowerPC 505/509" + +#define PPC_CACHE_ALIGNMENT PPC_NO_CACHE_ALIGNMENT #define PPC_I_CACHE 4096 #define PPC_D_CACHE 0 @@ -280,6 +293,8 @@ extern "C" { #define PPC_CACHE_ALIGN_POWER 4 #elif (PPC_CACHE_ALIGNMENT == 32) #define PPC_CACHE_ALIGN_POWER 5 +#elif (PPC_CACHE_ALIGNMENT == PPC_NO_CACHE_ALIGNMENT) +#define PPC_CACHE_ALIGN_POWER PPC_NO_CACHE_ALIGNMENT_POWER #else #error "Undefined power of 2 for PPC_CACHE_ALIGNMENT" #endif |