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-rw-r--r--arch/arm/mach-omap1/timer.c1
-rw-r--r--arch/arm/mach-omap1/timer32k.c1
-rw-r--r--arch/arm/mach-omap2/omap_hwmod_2420_data.c1
-rw-r--r--arch/arm/mach-omap2/omap_hwmod_2430_data.c1
-rw-r--r--arch/arm/mach-omap2/pm-debug.c1
-rw-r--r--arch/arm/mach-omap2/timer.c36
-rw-r--r--arch/arm/plat-omap/dmtimer.c54
-rw-r--r--arch/arm/plat-omap/include/plat/dmtimer.h80
-rw-r--r--drivers/staging/tidspbridge/core/ue_deh.c1
-rw-r--r--include/linux/platform_data/dmtimer-omap.h31
10 files changed, 105 insertions, 102 deletions
diff --git a/arch/arm/mach-omap1/timer.c b/arch/arm/mach-omap1/timer.c
index cdeb9d3..bde7a35 100644
--- a/arch/arm/mach-omap1/timer.c
+++ b/arch/arm/mach-omap1/timer.c
@@ -25,6 +25,7 @@
#include <linux/err.h>
#include <linux/slab.h>
#include <linux/platform_device.h>
+#include <linux/platform_data/dmtimer-omap.h>
#include <mach/irqs.h>
diff --git a/arch/arm/mach-omap1/timer32k.c b/arch/arm/mach-omap1/timer32k.c
index 8936819..41152fa 100644
--- a/arch/arm/mach-omap1/timer32k.c
+++ b/arch/arm/mach-omap1/timer32k.c
@@ -51,7 +51,6 @@
#include <asm/mach/time.h>
#include <plat/counter-32k.h>
-#include <plat/dmtimer.h>
#include <mach/hardware.h>
diff --git a/arch/arm/mach-omap2/omap_hwmod_2420_data.c b/arch/arm/mach-omap2/omap_hwmod_2420_data.c
index a8b3368..e8efe3d 100644
--- a/arch/arm/mach-omap2/omap_hwmod_2420_data.c
+++ b/arch/arm/mach-omap2/omap_hwmod_2420_data.c
@@ -17,7 +17,6 @@
#include <linux/platform_data/spi-omap2-mcspi.h>
#include <plat-omap/dma-omap.h>
-#include <plat/dmtimer.h>
#include "omap_hwmod.h"
#include "l3_2xxx.h"
diff --git a/arch/arm/mach-omap2/omap_hwmod_2430_data.c b/arch/arm/mach-omap2/omap_hwmod_2430_data.c
index dc768c5..32d17e3 100644
--- a/arch/arm/mach-omap2/omap_hwmod_2430_data.c
+++ b/arch/arm/mach-omap2/omap_hwmod_2430_data.c
@@ -18,7 +18,6 @@
#include <linux/platform_data/spi-omap2-mcspi.h>
#include <plat-omap/dma-omap.h>
-#include <plat/dmtimer.h>
#include "omap_hwmod.h"
#include "mmc.h"
diff --git a/arch/arm/mach-omap2/pm-debug.c b/arch/arm/mach-omap2/pm-debug.c
index 3cf4fdfd..e2c291f 100644
--- a/arch/arm/mach-omap2/pm-debug.c
+++ b/arch/arm/mach-omap2/pm-debug.c
@@ -30,7 +30,6 @@
#include "clock.h"
#include "powerdomain.h"
#include "clockdomain.h"
-#include <plat/dmtimer.h>
#include "omap-pm.h"
#include "soc.h"
diff --git a/arch/arm/mach-omap2/timer.c b/arch/arm/mach-omap2/timer.c
index 099e406..b7f43a2 100644
--- a/arch/arm/mach-omap2/timer.c
+++ b/arch/arm/mach-omap2/timer.c
@@ -39,6 +39,8 @@
#include <linux/of.h>
#include <linux/of_address.h>
#include <linux/of_irq.h>
+#include <linux/platform_device.h>
+#include <linux/platform_data/dmtimer-omap.h>
#include <asm/mach/time.h>
#include <asm/smp_twd.h>
@@ -160,11 +162,6 @@ static struct of_device_id omap_timer_match[] __initdata = {
{ }
};
-static struct of_device_id omap_counter_match[] __initdata = {
- { .compatible = "ti,omap-counter32k", },
- { }
-};
-
/**
* omap_get_timer_dt - get a timer using device-tree
* @match - device-tree match structure for matching a device type
@@ -245,10 +242,8 @@ static int __init omap_dm_timer_init_one(struct omap_dm_timer *timer,
const char *oh_name;
struct device_node *np;
struct omap_hwmod *oh;
- struct resource irq_rsrc, mem_rsrc;
- size_t size;
- int res = 0;
- int r;
+ struct resource irq, mem;
+ int r = 0;
if (of_have_populated_dt()) {
np = omap_get_timer_dt(omap_timer_match, NULL);
@@ -280,20 +275,18 @@ static int __init omap_dm_timer_init_one(struct omap_dm_timer *timer,
if (!of_have_populated_dt()) {
r = omap_hwmod_get_resource_byname(oh, IORESOURCE_IRQ, NULL,
- &irq_rsrc);
+ &irq);
if (r)
return -ENXIO;
- timer->irq = irq_rsrc.start;
+ timer->irq = irq.start;
r = omap_hwmod_get_resource_byname(oh, IORESOURCE_MEM, NULL,
- &mem_rsrc);
+ &mem);
if (r)
return -ENXIO;
- timer->phys_base = mem_rsrc.start;
- size = mem_rsrc.end - mem_rsrc.start;
/* Static mapping, never released */
- timer->io_base = ioremap(timer->phys_base, size);
+ timer->io_base = ioremap(mem.start, mem.end - mem.start);
}
if (!timer->io_base)
@@ -310,10 +303,10 @@ static int __init omap_dm_timer_init_one(struct omap_dm_timer *timer,
src = clk_get(NULL, fck_source);
if (IS_ERR(src)) {
- res = -EINVAL;
+ r = -EINVAL;
} else {
- res = clk_set_parent(timer->fclk, src);
- if (IS_ERR_VALUE(res))
+ r = clk_set_parent(timer->fclk, src);
+ if (IS_ERR_VALUE(r))
pr_warn("%s: %s cannot set source\n",
__func__, oh->name);
clk_put(src);
@@ -334,7 +327,7 @@ static int __init omap_dm_timer_init_one(struct omap_dm_timer *timer,
timer->rate = clk_get_rate(timer->fclk);
timer->reserved = 1;
- return res;
+ return r;
}
static void __init omap2_gp_clockevent_init(int gptimer_id,
@@ -408,6 +401,11 @@ static u32 notrace dmtimer_read_sched_clock(void)
}
#ifdef CONFIG_OMAP_32K_TIMER
+static struct of_device_id omap_counter_match[] __initdata = {
+ { .compatible = "ti,omap-counter32k", },
+ { }
+};
+
/* Setup free-running counter for clocksource */
static int __init omap2_sync32k_clocksource_init(void)
{
diff --git a/arch/arm/plat-omap/dmtimer.c b/arch/arm/plat-omap/dmtimer.c
index 9deeb30..89585c2 100644
--- a/arch/arm/plat-omap/dmtimer.c
+++ b/arch/arm/plat-omap/dmtimer.c
@@ -43,6 +43,8 @@
#include <linux/pm_runtime.h>
#include <linux/of.h>
#include <linux/of_device.h>
+#include <linux/platform_device.h>
+#include <linux/platform_data/dmtimer-omap.h>
#include <plat/dmtimer.h>
@@ -99,32 +101,39 @@ static void omap_timer_restore_context(struct omap_dm_timer *timer)
timer->context.tclr);
}
-static void omap_dm_timer_wait_for_reset(struct omap_dm_timer *timer)
+static int omap_dm_timer_reset(struct omap_dm_timer *timer)
{
- int c;
+ u32 l, timeout = 100000;
- if (!timer->sys_stat)
- return;
+ if (timer->revision != 1)
+ return -EINVAL;
- c = 0;
- while (!(__raw_readl(timer->sys_stat) & 1)) {
- c++;
- if (c > 100000) {
- printk(KERN_ERR "Timer failed to reset\n");
- return;
- }
+ omap_dm_timer_write_reg(timer, OMAP_TIMER_IF_CTRL_REG, 0x06);
+
+ do {
+ l = __omap_dm_timer_read(timer,
+ OMAP_TIMER_V1_SYS_STAT_OFFSET, 0);
+ } while (!l && timeout--);
+
+ if (!timeout) {
+ dev_err(&timer->pdev->dev, "Timer failed to reset\n");
+ return -ETIMEDOUT;
}
-}
-static void omap_dm_timer_reset(struct omap_dm_timer *timer)
-{
- omap_dm_timer_write_reg(timer, OMAP_TIMER_IF_CTRL_REG, 0x06);
- omap_dm_timer_wait_for_reset(timer);
- __omap_dm_timer_reset(timer, 0, 0);
+ /* Configure timer for smart-idle mode */
+ l = __omap_dm_timer_read(timer, OMAP_TIMER_OCP_CFG_OFFSET, 0);
+ l |= 0x2 << 0x3;
+ __omap_dm_timer_write(timer, OMAP_TIMER_OCP_CFG_OFFSET, l, 0);
+
+ timer->posted = 0;
+
+ return 0;
}
-int omap_dm_timer_prepare(struct omap_dm_timer *timer)
+static int omap_dm_timer_prepare(struct omap_dm_timer *timer)
{
+ int rc;
+
/*
* FIXME: OMAP1 devices do not use the clock framework for dmtimers so
* do not call clk_get() for these devices.
@@ -140,8 +149,13 @@ int omap_dm_timer_prepare(struct omap_dm_timer *timer)
omap_dm_timer_enable(timer);
- if (timer->capability & OMAP_TIMER_NEEDS_RESET)
- omap_dm_timer_reset(timer);
+ if (timer->capability & OMAP_TIMER_NEEDS_RESET) {
+ rc = omap_dm_timer_reset(timer);
+ if (rc) {
+ omap_dm_timer_disable(timer);
+ return rc;
+ }
+ }
__omap_dm_timer_enable_posted(timer);
omap_dm_timer_disable(timer);
diff --git a/arch/arm/plat-omap/include/plat/dmtimer.h b/arch/arm/plat-omap/include/plat/dmtimer.h
index 05a36e1..a3fbc48 100644
--- a/arch/arm/plat-omap/include/plat/dmtimer.h
+++ b/arch/arm/plat-omap/include/plat/dmtimer.h
@@ -79,8 +79,6 @@ struct omap_timer_capability_dev_attr {
u32 timer_capability;
};
-struct omap_dm_timer;
-
struct timer_regs {
u32 tidr;
u32 tier;
@@ -101,12 +99,29 @@ struct timer_regs {
u32 towr;
};
-struct dmtimer_platform_data {
- /* set_timer_src - Only used for OMAP1 devices */
- int (*set_timer_src)(struct platform_device *pdev, int source);
- u32 timer_errata;
- u32 timer_capability;
+struct omap_dm_timer {
+ int id;
+ int irq;
+ struct clk *fclk;
+
+ void __iomem *io_base;
+ void __iomem *irq_stat; /* TISR/IRQSTATUS interrupt status */
+ void __iomem *irq_ena; /* irq enable */
+ void __iomem *irq_dis; /* irq disable, only on v2 ip */
+ void __iomem *pend; /* write pending */
+ void __iomem *func_base; /* function register base */
+
+ unsigned long rate;
+ unsigned reserved:1;
+ unsigned posted:1;
+ struct timer_regs context;
int (*get_context_loss_count)(struct device *);
+ int ctx_loss_count;
+ int revision;
+ u32 capability;
+ u32 errata;
+ struct platform_device *pdev;
+ struct list_head node;
};
int omap_dm_timer_reserve_systimer(int id);
@@ -260,35 +275,6 @@ int omap_dm_timers_active(void);
#define OMAP_TIMER_TICK_INT_MASK_COUNT_REG \
(_OMAP_TIMER_TICK_INT_MASK_COUNT_OFFSET | (WP_TOWR << WPSHIFT))
-struct omap_dm_timer {
- unsigned long phys_base;
- int id;
- int irq;
- struct clk *fclk;
-
- void __iomem *io_base;
- void __iomem *sys_stat; /* TISTAT timer status */
- void __iomem *irq_stat; /* TISR/IRQSTATUS interrupt status */
- void __iomem *irq_ena; /* irq enable */
- void __iomem *irq_dis; /* irq disable, only on v2 ip */
- void __iomem *pend; /* write pending */
- void __iomem *func_base; /* function register base */
-
- unsigned long rate;
- unsigned reserved:1;
- unsigned posted:1;
- struct timer_regs context;
- int (*get_context_loss_count)(struct device *);
- int ctx_loss_count;
- int revision;
- u32 capability;
- u32 errata;
- struct platform_device *pdev;
- struct list_head node;
-};
-
-int omap_dm_timer_prepare(struct omap_dm_timer *timer);
-
static inline u32 __omap_dm_timer_read(struct omap_dm_timer *timer, u32 reg,
int posted)
{
@@ -317,8 +303,6 @@ static inline void __omap_dm_timer_init_regs(struct omap_dm_timer *timer)
tidr = __raw_readl(timer->io_base);
if (!(tidr >> 16)) {
timer->revision = 1;
- timer->sys_stat = timer->io_base +
- OMAP_TIMER_V1_SYS_STAT_OFFSET;
timer->irq_stat = timer->io_base + OMAP_TIMER_V1_STAT_OFFSET;
timer->irq_ena = timer->io_base + OMAP_TIMER_V1_INT_EN_OFFSET;
timer->irq_dis = timer->io_base + OMAP_TIMER_V1_INT_EN_OFFSET;
@@ -326,7 +310,6 @@ static inline void __omap_dm_timer_init_regs(struct omap_dm_timer *timer)
timer->func_base = timer->io_base;
} else {
timer->revision = 2;
- timer->sys_stat = NULL;
timer->irq_stat = timer->io_base + OMAP_TIMER_V2_IRQSTATUS;
timer->irq_ena = timer->io_base + OMAP_TIMER_V2_IRQENABLE_SET;
timer->irq_dis = timer->io_base + OMAP_TIMER_V2_IRQENABLE_CLR;
@@ -337,25 +320,6 @@ static inline void __omap_dm_timer_init_regs(struct omap_dm_timer *timer)
}
}
-/* Assumes the source clock has been set by caller */
-static inline void __omap_dm_timer_reset(struct omap_dm_timer *timer,
- int autoidle, int wakeup)
-{
- u32 l;
-
- l = __raw_readl(timer->io_base + OMAP_TIMER_OCP_CFG_OFFSET);
- l |= 0x02 << 3; /* Set to smart-idle mode */
- l |= 0x2 << 8; /* Set clock activity to perserve f-clock on idle */
-
- if (autoidle)
- l |= 0x1 << 0;
-
- if (wakeup)
- l |= 1 << 2;
-
- __raw_writel(l, timer->io_base + OMAP_TIMER_OCP_CFG_OFFSET);
-}
-
/*
* __omap_dm_timer_enable_posted - enables write posted mode
* @timer: pointer to timer instance handle
diff --git a/drivers/staging/tidspbridge/core/ue_deh.c b/drivers/staging/tidspbridge/core/ue_deh.c
index 3d28b23..6aea6f1 100644
--- a/drivers/staging/tidspbridge/core/ue_deh.c
+++ b/drivers/staging/tidspbridge/core/ue_deh.c
@@ -19,7 +19,6 @@
#include <linux/kernel.h>
#include <linux/interrupt.h>
-#include <plat/dmtimer.h>
#include <dspbridge/dbdefs.h>
#include <dspbridge/dspdeh.h>
diff --git a/include/linux/platform_data/dmtimer-omap.h b/include/linux/platform_data/dmtimer-omap.h
new file mode 100644
index 0000000..a19b78d
--- /dev/null
+++ b/include/linux/platform_data/dmtimer-omap.h
@@ -0,0 +1,31 @@
+/*
+ * DMTIMER platform data for TI OMAP platforms
+ *
+ * Copyright (C) 2012 Texas Instruments
+ * Author: Jon Hunter <jon-hunter@ti.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, 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, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef __PLATFORM_DATA_DMTIMER_OMAP_H__
+#define __PLATFORM_DATA_DMTIMER_OMAP_H__
+
+struct dmtimer_platform_data {
+ /* set_timer_src - Only used for OMAP1 devices */
+ int (*set_timer_src)(struct platform_device *pdev, int source);
+ u32 timer_capability;
+ u32 timer_errata;
+ int (*get_context_loss_count)(struct device *);
+};
+
+#endif /* __PLATFORM_DATA_DMTIMER_OMAP_H__ */
generated by cgit v0.10.2 at 2024-11-04 05:16:34 (GMT)