Add routines for Nemo specific devices to init at boot time, these
being board level power-off and SB600's rtc.
    
Also add a run time variable to prevent these being activated
if we boot on a reference board.
    
Signed-off-by: Darren Stevens <dar...@stevens-zone.net>

---

Changes made:

v2: Merged some #ifdef blocks
diff --git a/arch/powerpc/platforms/pasemi/setup.c 
b/arch/powerpc/platforms/pasemi/setup.c
index fad5280..98bf2f7 100644
--- a/arch/powerpc/platforms/pasemi/setup.c
+++ b/arch/powerpc/platforms/pasemi/setup.c
@@ -73,6 +73,40 @@ static void __noreturn pas_restart(char *cmd)
                out_le32(reset_reg, 0x6000000);
 }
 
+#ifdef CONFIG_PPC_PASEMI_NEMO
+void pas_shutdown(void)
+{
+       /* Set the PLD bit that makes the SB600 think the power button is being 
pressed */
+       void __iomem *pld_map = ioremap(0xf5000000,4096);
+       while (1)
+               out_8(pld_map+7,0x01);
+}
+
+/* RTC platform device structure as is not in device tree */
+static struct resource rtc_resource[] = {{
+       .name = "rtc",
+       .start = 0x70,
+       .end = 0x71,
+       .flags = IORESOURCE_IO,
+}, {
+       .name = "rtc",
+       .start = 8,
+       .end = 8,
+       .flags = IORESOURCE_IRQ,
+}};
+
+static inline void nemo_init_rtc(void)
+{
+       platform_device_register_simple("rtc_cmos", -1, rtc_resource, 2);
+}
+
+#else
+
+static inline void nemo_init_rtc(void)
+{
+}
+#endif
+
 #ifdef CONFIG_SMP
 static arch_spinlock_t timebase_lock;
 static unsigned long timebase;

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