* 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include <linux/clocksource.h>
+#include <linux/sched_clock.h>
#include <asm/addrspace.h>
#include <asm/io.h>
* The HPT is free running from SB1250_HPT_VALUE down to 0 then starts over
* again.
*/
-static cycle_t sb1250_hpt_read(struct clocksource *cs)
+static inline cycle_t sb1250_hpt_get_cycles(void)
{
unsigned int count;
+ void __iomem *addr;
- count = G_SCD_TIMER_CNT(__raw_readq(IOADDR(A_SCD_TIMER_REGISTER(SB1250_HPT_NUM, R_SCD_TIMER_CNT))));
+ addr = IOADDR(A_SCD_TIMER_REGISTER(SB1250_HPT_NUM, R_SCD_TIMER_CNT));
+ count = G_SCD_TIMER_CNT(__raw_readq(addr));
return SB1250_HPT_VALUE - count;
}
+static cycle_t sb1250_hpt_read(struct clocksource *cs)
+{
+ return sb1250_hpt_get_cycles();
+}
+
struct clocksource bcm1250_clocksource = {
.name = "bcm1250-counter-3",
.rating = 200,
.flags = CLOCK_SOURCE_IS_CONTINUOUS,
};
+static u64 notrace sb1250_read_sched_clock(void)
+{
+ return sb1250_hpt_get_cycles();
+}
+
void __init sb1250_clocksource_init(void)
{
struct clocksource *cs = &bcm1250_clocksource;
R_SCD_TIMER_CFG)));
clocksource_register_hz(cs, V_SCD_TIMER_FREQ);
+
+ sched_clock_register(sb1250_read_sched_clock, 23, V_SCD_TIMER_FREQ);
}