powerpc/pasemi: Add Nemo board device init code.

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 <darren@stevens-zone.net>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

diff --git a/arch/powerpc/platforms/pasemi/setup.c b/arch/powerpc/platforms/pasemi/setup.c
index fd33e94..5c1a1d9 100644 (file)
--- 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;