m68knommu: Add rtc device for m5441x.

Add definitions for the m5441x rtc device and an init_BSP function to the
m5441x device code.

Signed-off-by: Steven King <sfking@fdwdc.com>

arch/m68k/include/asm/m5441xsim.h

@@ -180,6 +180,12 @@
 #define MCFEPORT_EPPAR		0xfc090000
 #define MCFEPORT_EPIER		0xfc090003
 #define MCFEPORT_EPFR		0xfc090006
+/*
+ *  RTC Module.
+ */
+#define MCFRTC_BASE		0xfc0a8000
+#define MCFRTC_SIZE		(0xfc0a8840 - 0xfc0a8000)
+#define MCF_IRQ_RTC		(MCFINT2_VECBASE + MCFINT2_RTC)
 
 /*
  *  GPIO Module.

arch/m68k/platform/coldfire/clk.c

@@ -48,13 +48,6 @@ unsigned long clk_get_rate(struct clk *clk)
 	return MCF_CLK;
 }
 EXPORT_SYMBOL(clk_get_rate);
-
-struct clk *devm_clk_get(struct device *dev, const char *id)
-{
-	return NULL;
-}
-EXPORT_SYMBOL(devm_clk_get);
-
 #else
 static DEFINE_SPINLOCK(clk_lock);
 
@@ -153,3 +146,9 @@ struct clk_ops clk_ops1 = {
 };
 #endif /* MCFPM_PPMCR1 */
 #endif /* MCFPM_PPMCR0 */
+
+struct clk *devm_clk_get(struct device *dev, const char *id)
+{
+	return NULL;
+}
+EXPORT_SYMBOL(devm_clk_get);

arch/m68k/platform/coldfire/m5441x.c

@@ -222,3 +222,40 @@ void __init config_BSP(char *commandp, int size)
 	m5441x_uarts_init();
 	m5441x_fec_init();
 }
+
+
+#if IS_ENABLED(CONFIG_RTC_DRV_M5441x)
+static struct resource m5441x_rtc_resources[] = {
+	{
+		.start		= MCFRTC_BASE,
+		.end		= MCFRTC_BASE + MCFRTC_SIZE - 1,
+		.flags		= IORESOURCE_MEM,
+	},
+	{
+		.start		= MCF_IRQ_RTC,
+		.end		= MCF_IRQ_RTC,
+		.flags		= IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device m5441x_rtc = {
+	.name			= "mcfrtc",
+	.id			= 0,
+	.resource		= m5441x_rtc_resources,
+	.num_resources		= ARRAY_SIZE(m5441x_rtc_resources),
+};
+#endif
+
+static struct platform_device *m5441x_devices[] __initdata = {
+#if IS_ENABLED(CONFIG_RTC_DRV_M5441x)
+	&m5441x_rtc,
+#endif
+};
+
+static int __init init_BSP(void)
+{
+	platform_add_devices(m5441x_devices, ARRAY_SIZE(m5441x_devices));
+	return 0;
+}
+
+arch_initcall(init_BSP);