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zynq: invalidate cache before booting cpu1

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sometimes, machine would crash on boot because
of data cache inconsistency. invalidating the
cache before booting cpu1 fixes it.
This commit is contained in:
cinap_lenrek 2015-04-13 23:04:53 +02:00
parent a43321946e
commit 85e144dcb0
1 changed files with 2 additions and 1 deletions
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3
sys/src/9/zynq/main.c
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@ -379,11 +379,12 @@ mpinit(void)
m1->l1.va[L1X(KZERO)+i] = m->l1.va[L1X(KZERO)+i];
coherence();
cleandse((uchar*)KZERO, (uchar*)0xFFFFFFFF);
invaldse((uchar*)KZERO, (uchar*)0xFFFFFFFF);
/* ocm is uncached */
v = KADDR(0xFFFFF000);
v[0xFF0/4] = PADDR(mpbootstrap);
coherence();
cleandse(v, (uchar*)v+BY2PG);
sendevent();
synccycles();