powerpc: make MPIC honor the 'no-reset' device tree property

This property, defined in the MPIC binding, tells the kernel not to use the reset bit in the global configuration register.

---
 arch/powerpc/sysdev/mpic.c |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)

index 30c44e6..44aa2c3 100644
@@ -1157,7 +1157,9 @@ struct mpic * __init mpic_alloc(struct device_node *node,
 	mpic_map(mpic, node, paddr, &mpic->tmregs, MPIC_INFO(TIMER_BASE), 

0x1000);

/* Reset */
- if (flags & MPIC_WANTS_RESET) {
+ if ((flags & MPIC_WANTS_RESET) &&
+ !of_find_property(node, "no-reset", NULL)) {
+ printk(KERN_DEBUG "mpic: Resetting\n");
mpic_write(mpic->gregs, MPIC_INFO(GREG_GLOBAL_CONF_0),
mpic_read(mpic->gregs, MPIC_INFO(GREG_GLOBAL_CONF_0)) | MPIC_GREG_GCONF_RESET);
-- 1.6.3.3