1 files changed, 15 insertions, 0 deletions

diff --git a/arch/powerpc/platforms/52xx/efika.c b/arch/powerpc/platforms/52xx/efika.c
index a6bba97314eb..f591a9fc19b9 100644
--- a/arch/powerpc/platforms/52xx/efika.c
+++ b/arch/powerpc/platforms/52xx/efika.c
@@ -184,6 +184,16 @@ static void efika_show_cpuinfo(struct seq_file *m)
         of_node_put(root);
 }
 
+#ifdef CONFIG_PM
+static void efika_suspend_prepare(void __iomem *mbar)
+{
+        u8 pin = 4;     /* GPIO_WKUP_4 (GPIO_PSC6_0 - IRDA_RX) */
+        u8 level = 1;   /* wakeup on high level */
+        /* IOW. to wake it up, short pins 1 and 3 on IRDA connector */
+        mpc52xx_set_wakeup_gpio(pin, level);
+}
+#endif
+
 static void __init efika_setup_arch(void)
 {
         rtas_initialize();
@@ -199,6 +209,11 @@ static void __init efika_setup_arch(void)
 
         efika_pcisetup();
 
+#ifdef CONFIG_PM
+        mpc52xx_suspend.board_suspend_prepare = efika_suspend_prepare;
+        mpc52xx_pm_init();
+#endif
+
         if (ppc_md.progress)
                 ppc_md.progress("Linux/PPC " UTS_RELEASE " running on Efika ;-)\n", 0x0);
 }