linux-imx

/*

 * An RTC driver for Allwinner A10/A20

 *

 * Copyright (c) 2013, Carlo Caione <carlo.caione@gmail.com>

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License as published by

 * the Free Software Foundation; either version 2 of the License, or

 * (at your option) any later version.

 *

 * This program is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for

 * more details.

 *

 * You should have received a copy of the GNU General Public License along

 * with this program; if not, write to the Free Software Foundation, Inc.,

 * 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.

 */

​

#include <linux/delay.h>

#include <linux/err.h>

#include <linux/fs.h>

#include <linux/init.h>

#include <linux/interrupt.h>

#include <linux/io.h>

#include <linux/kernel.h>

#include <linux/module.h>

#include <linux/of.h>

#include <linux/of_address.h>

#include <linux/of_device.h>

#include <linux/platform_device.h>

#include <linux/rtc.h>

#include <linux/types.h>

​

#define SUNXI_LOSC_CTRL             0x0000

#define SUNXI_LOSC_CTRL_RTC_HMS_ACC     BIT(8)

#define SUNXI_LOSC_CTRL_RTC_YMD_ACC     BIT(7)

​

#define SUNXI_RTC_YMD               0x0004

​

#define SUNXI_RTC_HMS               0x0008

​

#define SUNXI_ALRM_DHMS             0x000c

​

#define SUNXI_ALRM_EN               0x0014

#define SUNXI_ALRM_EN_CNT_EN            BIT(8)

​

#define SUNXI_ALRM_IRQ_EN           0x0018

#define SUNXI_ALRM_IRQ_EN_CNT_IRQ_EN        BIT(0)

​

#define SUNXI_ALRM_IRQ_STA          0x001c

#define SUNXI_ALRM_IRQ_STA_CNT_IRQ_PEND     BIT(0)

​

#define SUNXI_MASK_DH               0x0000001f

#define SUNXI_MASK_SM               0x0000003f

#define SUNXI_MASK_M                0x0000000f

#define SUNXI_MASK_LY               0x00000001

#define SUNXI_MASK_D                0x00000ffe

#define SUNXI_MASK_M                0x0000000f

​

#define SUNXI_GET(x, mask, shift)       (((x) & ((mask) << (shift))) \

                            >> (shift))