diff mbox series

[NEXT,v2,3/4] powerpc/pasemi: Add Nemo board device init code.

Message ID 4c6da0b4b44.4b608222@auth.smtp.1and1.co.uk (mailing list archive)
State Accepted
Commit 656fdf3ad8e0ae4c6c3d75af373df6cc9797bac1
Headers show
Series [NEXT,v2,1/4] powerpc/pasemi: Add PCI initialisation for Nemo board. | expand

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Commit Message

Darren Stevens Aug. 19, 2018, 8:23 p.m. UTC 
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>

---

Changes made:

v2: Merged some #ifdef blocks
diff mbox series

Patch

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;