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bsp/qoriq: Enable branch prediction for T series

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This commit is contained in:
Sebastian Huber
2015-07-02 12:04:50 +02:00
parent 994d7e12b5
commit 3e02a472ba
2 changed files with 18 additions and 0 deletions
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4
c/src/lib/libbsp/powerpc/qoriq/configure.ac
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@@ -146,6 +146,10 @@ RTEMS_BSPOPTS_SET([QORIQ_INITIAL_SPEFSCR],[qoriq_t*],[])
RTEMS_BSPOPTS_SET([QORIQ_INITIAL_SPEFSCR],[*],[0x00000000])
RTEMS_BSPOPTS_HELP([QORIQ_INITIAL_SPEFSCR],[initial SPEFSCR value])
RTEMS_BSPOPTS_SET([QORIQ_INITIAL_BUCSR],[qoriq_t*],[0x01400201])
RTEMS_BSPOPTS_SET([QORIQ_INITIAL_BUCSR],[*],[])
RTEMS_BSPOPTS_HELP([QORIQ_INITIAL_BUCSR],[initial BUCSR value])
RTEMS_BSPOPTS_SET([QORIQ_MMU_DEVICE_MAS7],[qoriq_t*],[0xf])
RTEMS_BSPOPTS_SET([QORIQ_MMU_DEVICE_MAS7],[*],[0x0])
RTEMS_BSPOPTS_HELP([QORIQ_MMU_DEVICE_MAS7],[MAS7 value for device TLB1 entries])

14
c/src/lib/libbsp/powerpc/qoriq/start/start.S
View File

@@ -66,6 +66,13 @@ _start:
ori r0, INITIAL_MSR, MSR_IS | MSR_DS
mtmsr r0
#ifdef QORIQ_INITIAL_BUCSR
/* BUCSR initialization */
LWI r0, QORIQ_INITIAL_BUCSR
mtspr FSL_EIS_BUCSR, r0
isync
#endif
/* Initialize start stack */
LWI r1, start_stack_end - PPC_MINIMUM_STACK_FRAME_SIZE
clrrwi r1, r1, PPC_STACK_ALIGN_POWER
@@ -210,6 +217,13 @@ _start_secondary_processor:
ori r0, INITIAL_MSR, MSR_IS | MSR_DS
mtmsr r0
#ifdef QORIQ_INITIAL_BUCSR
/* BUCSR initialization */
LWI r0, QORIQ_INITIAL_BUCSR
mtspr FSL_EIS_BUCSR, r0
isync
#endif
/* Initialize start stack */
subi r1, r1, PPC_MINIMUM_STACK_FRAME_SIZE
clrrwi r1, r1, PPC_STACK_ALIGN_POWER