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bsps/leon3: Use custom CPU counter implementation

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Merge the timecounter and CPU counter support for the leon3 BSP family.
Remove now unused functions from the CPU counter support of the erc32
and leon3 BSPs.

Update #4954.
This commit is contained in:
Sebastian Huber
2023-09-15 15:46:31 +02:00
parent ff533cec9d
commit abb2f8bd66
6 changed files with 134 additions and 91 deletions
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26
bsps/sparc/shared/start/sparc-counter-asm.S
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@@ -74,25 +74,6 @@ SYM(_SPARC_Counter_read_default):
jmp %o7 + 8
nop
PUBLIC(_SPARC_Counter_read_up)
PUBLIC(_SPARC_Get_timecount_up)
SYM(_SPARC_Counter_read_up):
SYM(_SPARC_Get_timecount_up):
sethi %hi(_SPARC_Counter + 8), %o0
ld [%o0 + %lo(_SPARC_Counter + 8)], %o0
jmp %o7 + 8
ld [%o0], %o0
PUBLIC(_SPARC_Counter_read_down)
PUBLIC(_SPARC_Get_timecount_down)
SYM(_SPARC_Counter_read_down):
SYM(_SPARC_Get_timecount_down):
sethi %hi(_SPARC_Counter + 8), %o0
ld [%o0 + %lo(_SPARC_Counter + 8)], %o0
ld [%o0], %o0
jmp %o7 + 8
xnor %g0, %o0, %o0
/*
* For the corresponding C code is something like this:
*
@@ -168,10 +149,3 @@ SYM(_SPARC_Get_timecount_clock):
add %o4, %o5, %o4
jmp %o7 + 8
sub %o4, %o0, %o0
PUBLIC(_SPARC_Counter_read_asr23)
PUBLIC(_SPARC_Get_timecount_asr23)
SYM(_SPARC_Counter_read_asr23):
SYM(_SPARC_Get_timecount_asr23):
jmp %o7 + 8
mov %asr23, %o0