davinci: Add base address and timer flexibility

The davinci timer code currently hardcodes the timer register
base addresses, the timer irq numbers, and the timers to use
for clock events and clocksource.  This won't work for some
a new SoC so put those values into the soc_info structure
and set them up in the SoC-specific files.

Signed-off-by: Mark A. Greer <mgreer@mvista.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>

1 files changed, 14 insertions, 0 deletions

diff --git a/arch/arm/mach-davinci/dm644x.c b/arch/arm/mach-davinci/dm644x.c
index 5c6a7b175786..8e9385c34853 100644
--- a/arch/arm/mach-davinci/dm644x.c
+++ b/arch/arm/mach-davinci/dm644x.c
@@ -22,6 +22,7 @@
 #include <mach/irqs.h>
 #include <mach/psc.h>
 #include <mach/mux.h>
+#include <mach/time.h>
 #include <mach/common.h>
 
 #include "clock.h"
@@ -559,6 +560,18 @@ static void __iomem *dm644x_psc_bases[] = {
         IO_ADDRESS(DAVINCI_PWR_SLEEP_CNTRL_BASE),
 };
 
+/*
+ * T0_BOT: Timer 0, bottom:  clockevent source for hrtimers
+ * T0_TOP: Timer 0, top   :  clocksource for generic timekeeping
+ * T1_BOT: Timer 1, bottom:  (used by DSP in TI DSPLink code)
+ * T1_TOP: Timer 1, top   :  <unused>
+ */
+struct davinci_timer_info dm644x_timer_info = {
+        .timers         = davinci_timer_instance,
+        .clockevent_id  = T0_BOT,
+        .clocksource_id = T0_TOP,
+};
+
 static struct davinci_soc_info davinci_soc_info_dm644x = {
         .io_desc                = dm644x_io_desc,
         .io_desc_num            = ARRAY_SIZE(dm644x_io_desc),
@@ -575,6 +588,7 @@ static struct davinci_soc_info davinci_soc_info_dm644x = {
         .intc_type              = DAVINCI_INTC_TYPE_AINTC,
         .intc_irq_prios         = dm644x_default_priorities,
         .intc_irq_num           = DAVINCI_N_AINTC_IRQ,
+        .timer_info             = &dm644x_timer_info,
 };
 
 void __init dm644x_init(void)