On 2014-03-31 11:48, Daniel Cederman wrote:
See errata of respective chip. Some code-cleanup as well.
---
c/src/lib/libbsp/sparc/leon3/startup/bspidle.S | 7 ++-----
1 file changed, 2 insertions(+), 5 deletions(-)
diff --git a/c/src/lib/libbsp/sparc/leon3/startup/bspidle.S
b/c/src/lib/libbsp/sparc/leon3/startup/bspidle.S
index 714d4e5..0924658 100644
--- a/c/src/lib/libbsp/sparc/leon3/startup/bspidle.S
+++ b/c/src/lib/libbsp/sparc/leon3/startup/bspidle.S
@@ -23,8 +23,5 @@
SYM(bsp_idle_thread):
SYM(leon3_power_down_loop):
pwdloop: mov %g0, %asr19
- ba pwdloop
- nop
- retl
- nop
-
+ lda [%sp] 1, %g0 ! Needed for UT699 and GR712
+ ba,a pwdloop
If I understand this ",a" notation correctly, then the instruction following
the branch is not executed in case the branch is not taken. Since we branch
always, this ",a" seems to be superfluous. Is it safe to remove the nop
instruction in the delay slot here?
--
Sebastian Huber, embedded brains GmbH
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