Author: loos
Date: Wed May 13 01:48:47 2015
New Revision: 282828
URL: https://svnweb.freebsd.org/changeset/base/282828
Log:
Fix the SMP initialization on RPi 2 (BCM2836).
Invalidate the CPU cache before start the others CPUs.
Submitted by: Michal Meloun <mel...@miracle.cz>
Modified:
head/sys/arm/broadcom/bcm2835/bcm2836_mp.c
Modified: head/sys/arm/broadcom/bcm2835/bcm2836_mp.c
==============================================================================
--- head/sys/arm/broadcom/bcm2835/bcm2836_mp.c Wed May 13 01:10:28 2015
(r282827)
+++ head/sys/arm/broadcom/bcm2835/bcm2836_mp.c Wed May 13 01:48:47 2015
(r282828)
@@ -123,6 +123,8 @@ platform_mp_start_ap(void)
BSWR4(MBOX3CLR_CORE(i), 0xffffffff);
}
wmb();
+ cpu_idcache_wbinv_all();
+ cpu_l2cache_wbinv_all();
/* boot secondary CPUs */
for (i = 1; i < mp_ncpus; i++) {
@@ -152,9 +154,6 @@ platform_mp_start_ap(void)
/* recode AP in CPU map */
CPU_SET(i, &all_cpus);
}
-
- cpu_idcache_wbinv_all();
- cpu_l2cache_wbinv_all();
}
void
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