svn commit: r282828 - head/sys/arm/broadcom/bcm2835

[Luiz Otavio O Souza]

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 <meloun at 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