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-rw-r--r--include/asm-ppc/m48t35.h77
1 files changed, 77 insertions, 0 deletions
diff --git a/include/asm-ppc/m48t35.h b/include/asm-ppc/m48t35.h
new file mode 100644
index 000000000000..f3c5e5dfa986
--- /dev/null
+++ b/include/asm-ppc/m48t35.h
@@ -0,0 +1,77 @@
+/*
+ * Registers for the SGS-Thomson M48T35 Timekeeper RAM chip
+ * and
+ * Registers for the SGS-Thomson M48T37 Timekeeper RAM chip
+ * The 37 is the 35 plus alarm and century thus the offsets
+ * are shifted by the extra registers.
+ */
+
+#ifndef __PPC_M48T35_H
+#define __PPC_M48T35_H
+
+/* RTC offsets */
+#define M48T35_RTC_FLAGS (-8) /* the negative regs are really T37 only */
+#define M48T35_RTC_CENTURY (-7)
+#define M48T35_RTC_AL_SEC (-6)
+#define M48T35_RTC_AL_MIN (-5)
+#define M48T35_RTC_AL_HRS (-4)
+#define M48T35_RTC_AL_DOM (-3)
+#define M48T35_RTC_INTERRUPT (-2)
+#define M48T35_RTC_WATCHDOG (-1)
+#define M48T35_RTC_CONTROL 0 /* T35 starts here */
+#define M48T35_RTC_SECONDS 1
+#define M48T35_RTC_MINUTES 2
+#define M48T35_RTC_HOURS 3
+#define M48T35_RTC_DAY 4
+#define M48T35_RTC_DOM 5
+#define M48T35_RTC_MONTH 6
+#define M48T35_RTC_YEAR 7
+
+/* this way help us know which bits go with which regs */
+#define M48T35_RTC_FLAGS_BL 0x10
+#define M48T35_RTC_FLAGS_AF 0x40
+#define M48T35_RTC_FLAGS_WDF 0x80
+
+#define M48T35_RTC_INTERRUPT_AFE 0x80
+#define M48T35_RTC_INTERRUPT_ABE 0x20
+#define M48T35_RTC_INTERRUPT_ALL (M48T35_RTC_INTERRUPT_AFE|M48T35_RTC_INTERRUPT_ABE)
+
+#define M48T35_RTC_WATCHDOG_RB 0x03
+#define M48T35_RTC_WATCHDOG_BMB 0x7c
+#define M48T35_RTC_WATCHDOG_WDS 0x80
+#define M48T35_RTC_WATCHDOG_ALL (M48T35_RTC_WATCHDOG_RB|M48T35_RTC_WATCHDOG_BMB|M48T35_RTC_W
+
+#define M48T35_RTC_CONTROL_WRITE 0x80
+#define M48T35_RTC_CONTROL_READ 0x40
+#define M48T35_RTC_CONTROL_CAL_SIGN 0x20
+#define M48T35_RTC_CONTROL_CAL_VALUE 0x1f
+#define M48T35_RTC_CONTROL_LOCKED (M48T35_RTC_WRITE|M48T35_RTC_READ)
+#define M48T35_RTC_CONTROL_CALIBRATION (M48T35_RTC_CONTROL_CAL_SIGN|M48T35_RTC_CONTROL_CAL_VALUE)
+
+#define M48T35_RTC_SECONDS_SEC_1 0x0f
+#define M48T35_RTC_SECONDS_SEC_10 0x70
+#define M48T35_RTC_SECONDS_ST 0x80
+#define M48T35_RTC_SECONDS_SEC_ALL (M48T35_RTC_SECONDS_SEC_1|M48T35_RTC_SECONDS_SEC_10)
+
+#define M48T35_RTC_MINUTES_MIN_1 0x0f
+#define M48T35_RTC_MINUTES_MIN_10 0x70
+#define M48T35_RTC_MINUTES_MIN_ALL (M48T35_RTC_MINUTES_MIN_1|M48T35_RTC_MINUTES_MIN_10)
+
+#define M48T35_RTC_HOURS_HRS_1 0x0f
+#define M48T35_RTC_HOURS_HRS_10 0x30
+#define M48T35_RTC_HOURS_HRS_ALL (M48T35_RTC_HOURS_HRS_1|M48T35_RTC_HOURS_HRS_10)
+
+#define M48T35_RTC_DAY_DAY_1 0x03
+#define M48T35_RTC_DAY_FT 0x40
+
+#define M48T35_RTC_ALARM_OFF 0x00
+#define M48T35_RTC_WATCHDOG_OFF 0x00
+
+
+/* legacy */
+#define M48T35_RTC_SET 0x80
+#define M48T35_RTC_STOPPED 0x80
+#define M48T35_RTC_READ 0x40
+
+
+#endif