Hi Joel,
On 03/13/2014 03:35 PM, Joel Fernandes wrote:
We introduce functions to initialize clocksource and clockevent, use
CLOCKSOURCE_OF_DECLARE to declare the clocksource, and handle the clocksource
selection on a per-SoC basis (Currently only AM335x is supported). Powering up
of the timer will be done with the help of the mach-omap layer function that's
introduced earlier in the series.
We make a local copy of dmtimer API for use by clocksource, the original
dmtimer API in plat-omap is kept as-is till the migration of all SoCs is
completed after which it can't be deleted.
Signed-off-by: Joel Fernandes <jo...@ti.com>
---
drivers/clocksource/Makefile | 1 +
drivers/clocksource/omap-timer.c | 1157 ++++++++++++++++++++++++++++++++++++++
drivers/clocksource/omap-timer.h | 422 ++++++++++++++
3 files changed, 1580 insertions(+)
create mode 100644 drivers/clocksource/omap-timer.c
create mode 100644 drivers/clocksource/omap-timer.h
diff --git a/drivers/clocksource/Makefile b/drivers/clocksource/Makefile
index c7ca50a..2ffe698 100644
--- a/drivers/clocksource/Makefile
+++ b/drivers/clocksource/Makefile
@@ -37,3 +37,4 @@ obj-$(CONFIG_ARM_ARCH_TIMER) += arm_arch_timer.o
obj-$(CONFIG_ARM_GLOBAL_TIMER) += arm_global_timer.o
obj-$(CONFIG_CLKSRC_METAG_GENERIC) += metag_generic.o
obj-$(CONFIG_ARCH_HAS_TICK_BROADCAST) += dummy_timer.o
+obj-y += omap-timer.o
diff --git a/drivers/clocksource/omap-timer.c b/drivers/clocksource/omap-timer.c
new file mode 100644
index 0000000..91593d8
--- /dev/null
+++ b/drivers/clocksource/omap-timer.c
@@ -0,0 +1,1157 @@
+/*
+ * drivers/clocksource/omap-timer.c
+ *
+ * OMAP Dual-Mode Timers
+ *
+ * Copyright (C) 2014 Texas Instruments Incorporated - http://www.ti.com/
+ * Joel Fernandes <jo...@ti.com>
+ * Tarun Kanti DebBarma <tarun.ka...@ti.com>
+ * Thara Gopinath <th...@ti.com>
+ *
+ * dmtimer adaptation to platform_driver.
+ *
+ * Copyright (C) 2005 Nokia Corporation
+ * OMAP2 support by Juha Yrjola
+ * API improvements and OMAP2 clock framework support by Timo Teras
+ *
+ * Copyright (C) 2014 Texas Instruments
+ * Added OMAP4 support - Santosh Shilimkar <santosh.shilim...@ti.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
+ * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * 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.,
+ * 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+#include <linux/init.h>
+#include <linux/time.h>
+#include <linux/interrupt.h>
+#include <linux/err.h>
+#include <linux/clk.h>
+#include <linux/delay.h>
+#include <linux/irq.h>
+#include <linux/clocksource.h>
+#include <linux/clockchips.h>
+#include <linux/slab.h>
+#include <linux/sched_clock.h>
+
+#include <linux/clk.h>
+#include <linux/module.h>
+#include <linux/io.h>
+#include <linux/device.h>
+#include <linux/err.h>
+#include <linux/pm_runtime.h>
+#include <linux/of.h>
+#include <linux/of_irq.h>
+#include <linux/of_address.h>
+
+#include <linux/of_device.h>
+#include <linux/platform_device.h>
+#include <linux/platform_data/dmtimer-omap.h>
+#include "omap-timer.h"
+/*
+ * TODO: OMAP1 support removed due to need for header mach/hardware.h
+ * OMAP2 support may be broken due to lack of cpu_is stuff, see
omap_dm_timer_get_errata
+ */
+
+/**
+ * omap_dm_timer_get_errata - get errata flags for a timer
+ *
+ * Get the timer errata flags that are specific to the OMAP device being used.
+ */
+static u32 __init omap_dm_timer_get_errata(void)
+{
+ /* ifdef'd out due to lack of availaibility of soc.h */
+#if 0
+ if (cpu_is_omap24xx())
+ return 0;
You should be able to fix this using some compatible checks.
regards
Suman
+#endif
+ return OMAP_TIMER_ERRATA_I103_I767;
+}
+
+
-snip-
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