Add definitions for the Dallas DS17287 RTC.

    
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

1 files changed, 67 insertions, 0 deletions

diff --git a/include/linux/ds17287rtc.h b/include/linux/ds17287rtc.h
new file mode 100644
index 000000000000..c281ba42e28f
--- /dev/null
+++ b/include/linux/ds17287rtc.h
@@ -0,0 +1,67 @@
+/*
+ * ds17287rtc.h - register definitions for the ds1728[57] RTC / CMOS RAM
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * (C) 2003 Guido Guenther <agx@sigxcpu.org>
+ */
+#ifndef __LINUX_DS17287RTC_H
+#define __LINUX_DS17287RTC_H
+
+#include <linux/rtc.h>                  /* get the user-level API */
+#include <linux/spinlock.h>             /* spinlock_t */
+#include <linux/mc146818rtc.h>
+
+/* Register A */
+#define DS_REGA_DV2     0x40            /* countdown chain */
+#define DS_REGA_DV1     0x20            /* oscillator enable */
+#define DS_REGA_DV0     0x10            /* bank select */
+
+/* bank 1 registers */
+#define DS_B1_MODEL     0x40            /* model number byte */
+#define DS_B1_SN1       0x41            /* serial number byte 1 */
+#define DS_B1_SN2       0x42            /* serial number byte 2 */
+#define DS_B1_SN3       0x43            /* serial number byte 3 */
+#define DS_B1_SN4       0x44            /* serial number byte 4 */
+#define DS_B1_SN5       0x45            /* serial number byte 5 */
+#define DS_B1_SN6       0x46            /* serial number byte 6 */
+#define DS_B1_CRC       0x47            /* CRC byte */
+#define DS_B1_CENTURY   0x48            /* Century byte */
+#define DS_B1_DALARM    0x49            /* date alarm */
+#define DS_B1_XCTRL4A   0x4a            /* extendec control register 4a */
+#define DS_B1_XCTRL4B   0x4b            /* extendec control register 4b */
+#define DS_B1_RTCADDR2  0x4e            /* rtc address 2 */
+#define DS_B1_RTCADDR3  0x4f            /* rtc address 3 */
+#define DS_B1_RAMLSB    0x50            /* extended ram LSB */
+#define DS_B1_RAMMSB    0x51            /* extended ram MSB */
+#define DS_B1_RAMDPORT  0x53            /* extended ram data port */
+
+/* register details */
+/* extended control register 4a */
+#define DS_XCTRL4A_VRT2 0x80            /* valid ram and time */
+#define DS_XCTRL4A_INCR 0x40            /* increment progress status */
+#define DS_XCTRL4A_BME  0x20            /* burst mode enable */
+#define DS_XCTRL4A_PAB  0x08            /* power active bar ctrl */
+#define DS_XCTRL4A_RF   0x04            /* ram clear flag */
+#define DS_XCTRL4A_WF   0x02            /* wake up alarm flag */
+#define DS_XCTRL4A_KF   0x01            /* kickstart flag */
+
+/* interrupt causes */
+#define DS_XCTRL4A_IFS  (DS_XCTRL4A_RF|DS_XCTRL4A_WF|DS_XCTRL4A_KF)
+
+/* extended control register 4b */
+#define DS_XCTRL4B_ABE  0x80            /* auxiliary battery enable */
+#define DS_XCTRL4B_E32K 0x40            /* enable 32.768 kHz Output */
+#define DS_XCTRL4B_CS   0x20            /* crystal select */
+#define DS_XCTRL4B_RCE  0x10            /* ram clear enable */
+#define DS_XCTRL4B_PRS  0x08            /* PAB resec select */
+#define DS_XCTRL4B_RIE  0x04            /* ram clear interrupt enable */
+#define DS_XCTRL4B_WFE  0x02            /* wake up alarm interrupt enable */
+#define DS_XCTRL4B_KFE  0x01            /* kickstart interrupt enable */
+
+/* interrupt enable bits */
+#define DS_XCTRL4B_IFES (DS_XCTRL4B_RIE|DS_XCTRL4B_WFE|DS_XCTRL4B_KFE)
+
+#endif /* __LINUX_DS17287RTC_H */