aboutsummaryrefslogtreecommitdiff
path: root/arch/powerpc
diff options
context:
space:
mode:
Diffstat (limited to 'arch/powerpc')
-rw-r--r--arch/powerpc/sysdev/mpic.c20
1 files changed, 20 insertions, 0 deletions
diff --git a/arch/powerpc/sysdev/mpic.c b/arch/powerpc/sysdev/mpic.c
index 7dcdfcb3c98..bffe50d02c9 100644
--- a/arch/powerpc/sysdev/mpic.c
+++ b/arch/powerpc/sysdev/mpic.c
@@ -829,7 +829,27 @@ void __init mpic_init(struct mpic *mpic)
mpic_cpu_write(MPIC_CPU_CURRENT_TASK_PRI, 0);
}
+void __init mpic_set_clk_ratio(struct mpic *mpic, u32 clock_ratio)
+{
+ u32 v;
+
+ v = mpic_read(mpic->gregs, MPIC_GREG_GLOBAL_CONF_1);
+ v &= ~MPIC_GREG_GLOBAL_CONF_1_CLK_RATIO_MASK;
+ v |= MPIC_GREG_GLOBAL_CONF_1_CLK_RATIO(clock_ratio);
+ mpic_write(mpic->gregs, MPIC_GREG_GLOBAL_CONF_1, v);
+}
+void __init mpic_set_serial_int(struct mpic *mpic, int enable)
+{
+ u32 v;
+
+ v = mpic_read(mpic->gregs, MPIC_GREG_GLOBAL_CONF_1);
+ if (enable)
+ v |= MPIC_GREG_GLOBAL_CONF_1_SIE;
+ else
+ v &= ~MPIC_GREG_GLOBAL_CONF_1_SIE;
+ mpic_write(mpic->gregs, MPIC_GREG_GLOBAL_CONF_1, v);
+}
void mpic_irq_set_priority(unsigned int irq, unsigned int pri)
{