diff options
| author | Mark Brown <broonie@kernel.org> | 2015-06-09 18:35:46 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2015-06-09 18:35:46 +0100 |
| commit | 6724af486903df57338c14424e02599e371cf563 (patch) | |
| tree | 0e42ae32bbfe7e93ba9db11a1124aeb4378cbd71 /arch/mips/kernel/csrc-sb1250.c | |
| parent | d2233325e5b7891914901867ca5355347d59df14 (diff) | |
| parent | 9deef024a12ebae4965c89837f662905ac88944b (diff) | |
Merge branch 'fix/fsl-dspi' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi into spi-fsl-dspi
Diffstat (limited to 'arch/mips/kernel/csrc-sb1250.c')
| -rw-r--r-- | arch/mips/kernel/csrc-sb1250.c | 23 |
1 files changed, 17 insertions, 6 deletions
diff --git a/arch/mips/kernel/csrc-sb1250.c b/arch/mips/kernel/csrc-sb1250.c index 6ecb77d82063..d915652b4d56 100644 --- a/arch/mips/kernel/csrc-sb1250.c +++ b/arch/mips/kernel/csrc-sb1250.c @@ -10,12 +10,9 @@ * 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> @@ -33,15 +30,22 @@ * 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, @@ -50,6 +54,11 @@ struct clocksource bcm1250_clocksource = { .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; @@ -66,4 +75,6 @@ void __init sb1250_clocksource_init(void) R_SCD_TIMER_CFG))); clocksource_register_hz(cs, V_SCD_TIMER_FREQ); + + sched_clock_register(sb1250_read_sched_clock, 23, V_SCD_TIMER_FREQ); } |