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authorAndré Fabian Silva Delgado <emulatorman@parabola.nu>2015-09-08 01:01:14 -0300
committerAndré Fabian Silva Delgado <emulatorman@parabola.nu>2015-09-08 01:01:14 -0300
commite5fd91f1ef340da553f7a79da9540c3db711c937 (patch)
treeb11842027dc6641da63f4bcc524f8678263304a3 /drivers/clocksource/timer-sp.h
parent2a9b0348e685a63d97486f6749622b61e9e3292f (diff)
Linux-libre 4.2-gnu
Diffstat (limited to 'drivers/clocksource/timer-sp.h')
-rw-r--r--drivers/clocksource/timer-sp.h30
1 files changed, 30 insertions, 0 deletions
diff --git a/drivers/clocksource/timer-sp.h b/drivers/clocksource/timer-sp.h
new file mode 100644
index 000000000..050d88561
--- /dev/null
+++ b/drivers/clocksource/timer-sp.h
@@ -0,0 +1,30 @@
+/*
+ * ARM timer implementation, found in Integrator, Versatile and Realview
+ * platforms. Not all platforms support all registers and bits in these
+ * registers, so we mark them with A for Integrator AP, C for Integrator
+ * CP, V for Versatile and R for Realview.
+ *
+ * Integrator AP has 16-bit timers, Integrator CP, Versatile and Realview
+ * can have 16-bit or 32-bit selectable via a bit in the control register.
+ *
+ * Every SP804 contains two identical timers.
+ */
+#define TIMER_1_BASE 0x00
+#define TIMER_2_BASE 0x20
+
+#define TIMER_LOAD 0x00 /* ACVR rw */
+#define TIMER_VALUE 0x04 /* ACVR ro */
+#define TIMER_CTRL 0x08 /* ACVR rw */
+#define TIMER_CTRL_ONESHOT (1 << 0) /* CVR */
+#define TIMER_CTRL_32BIT (1 << 1) /* CVR */
+#define TIMER_CTRL_DIV1 (0 << 2) /* ACVR */
+#define TIMER_CTRL_DIV16 (1 << 2) /* ACVR */
+#define TIMER_CTRL_DIV256 (2 << 2) /* ACVR */
+#define TIMER_CTRL_IE (1 << 5) /* VR */
+#define TIMER_CTRL_PERIODIC (1 << 6) /* ACVR */
+#define TIMER_CTRL_ENABLE (1 << 7) /* ACVR */
+
+#define TIMER_INTCLR 0x0c /* ACVR wo */
+#define TIMER_RIS 0x10 /* CVR ro */
+#define TIMER_MIS 0x14 /* CVR ro */
+#define TIMER_BGLOAD 0x18 /* CVR rw */