2 * Setup code for PC-style Real-Time Clock.
4 * Author: Wade Farnsworth <wfarnsworth@mvista.com>
6 * 2007 (c) MontaVista Software, Inc. This file is licensed under
7 * the terms of the GNU General Public License version 2. This program
8 * is licensed "as is" without any warranty of any kind, whether express
12 #include <linux/platform_device.h>
13 #include <linux/err.h>
14 #include <linux/init.h>
15 #include <linux/mc146818rtc.h>
19 static int __init add_rtc(void)
21 struct device_node *np;
22 struct platform_device *pd;
23 struct resource res[2];
26 memset(&res, 0, sizeof(res));
28 np = of_find_compatible_node(NULL, NULL, "pnpPNP,b00");
32 ret = of_address_to_resource(np, 0, &res[0]);
38 * RTC_PORT(x) is hardcoded in asm/mc146818rtc.h. Verify that the
39 * address provided by the device node matches.
41 if (res[0].start != RTC_PORT(0))
44 /* Use a fixed interrupt value of 8 since on PPC if we are using this
45 * its off an i8259 which we ensure has interrupt numbers 0..15. */
48 res[1].flags = IORESOURCE_IRQ;
50 pd = platform_device_register_simple("rtc_cmos", -1,
60 MODULE_LICENSE("GPL");