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authorian <ian@FreeBSD.org>2014-05-17 20:22:22 +0000
committerian <ian@FreeBSD.org>2014-05-17 20:22:22 +0000
commite111203de4ff2e5b910a02a32c680c216158afc6 (patch)
tree9e41be4459b39a47e9fd7b02a28cce35b7b0faaf /sys/arm/freescale
parent9f4d42e0d5ac9fd53ce7499b7ba78d5c2f392dcf (diff)
downloadFreeBSD-src-e111203de4ff2e5b910a02a32c680c216158afc6.zip
FreeBSD-src-e111203de4ff2e5b910a02a32c680c216158afc6.tar.gz
MFC 264054, 264056
Switch imx6 to using the mpcore per-cpu event timers, but continue to use the GPT timer, which is fixed-frequency, as a timecounter. Change NO_EVENTTIMERS from an arm-specific to an MI option, so that it can be used in MI code.
Diffstat (limited to 'sys/arm/freescale')
-rw-r--r--sys/arm/freescale/imx/files.imx61
-rw-r--r--sys/arm/freescale/imx/imx6_anatop.c3
-rw-r--r--sys/arm/freescale/imx/imx6_machdep.c3
3 files changed, 7 insertions, 0 deletions
diff --git a/sys/arm/freescale/imx/files.imx6 b/sys/arm/freescale/imx/files.imx6
index cab333f..8697f6e 100644
--- a/sys/arm/freescale/imx/files.imx6
+++ b/sys/arm/freescale/imx/files.imx6
@@ -16,6 +16,7 @@ kern/kern_clocksource.c standard
arm/arm/gic.c standard
arm/arm/pl310.c standard
arm/freescale/imx/bus_space.c standard
+arm/arm/mpcore_timer.c standard
arm/freescale/fsl_ocotp.c standard
arm/freescale/imx/imx6_anatop.c standard
arm/freescale/imx/imx_common.c standard
diff --git a/sys/arm/freescale/imx/imx6_anatop.c b/sys/arm/freescale/imx/imx6_anatop.c
index c713d8a..eb784ed 100644
--- a/sys/arm/freescale/imx/imx6_anatop.c
+++ b/sys/arm/freescale/imx/imx6_anatop.c
@@ -68,6 +68,7 @@ __FBSDID("$FreeBSD$");
#include <machine/bus.h>
#include <machine/fdt.h>
+#include <arm/arm/mpcore_timervar.h>
#include <arm/freescale/fsl_ocotpreg.h>
#include <arm/freescale/fsl_ocotpvar.h>
#include <arm/freescale/imx/imx6_anatopreg.h>
@@ -263,6 +264,8 @@ cpufreq_set_clock(struct imx6_anatop_softc * sc, uint32_t cpu_newhz)
imx6_anatop_write_4(IMX6_ANALOG_CCM_PLL_ARM_CLR,
IMX6_ANALOG_CCM_PLL_ARM_BYPASS);
+
+ arm_tmr_change_frequency(sc->cpu_curhz / 2);
}
static void
diff --git a/sys/arm/freescale/imx/imx6_machdep.c b/sys/arm/freescale/imx/imx6_machdep.c
index abca91f..c1074d0 100644
--- a/sys/arm/freescale/imx/imx6_machdep.c
+++ b/sys/arm/freescale/imx/imx6_machdep.c
@@ -40,6 +40,7 @@ __FBSDID("$FreeBSD$");
#include <machine/devmap.h>
#include <machine/machdep.h>
+#include <arm/arm/mpcore_timervar.h>
#include <arm/freescale/imx/imx6_anatopreg.h>
#include <arm/freescale/imx/imx6_anatopvar.h>
#include <arm/freescale/imx/imx_machdep.h>
@@ -55,6 +56,8 @@ void
initarm_early_init(void)
{
+ /* Inform the MPCore timer driver that its clock is variable. */
+ arm_tmr_change_frequency(ARM_TMR_FREQUENCY_VARIES);
}
void
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