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authorRussell King <rmk+kernel@arm.linux.org.uk>2012-06-06 11:42:36 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2012-07-09 17:37:35 +0100
commit3169663ac5902f2228ea0eb8cc34eb52cbd4b283 (patch)
tree5eb1d323c4a268e77ce39fdd20c3f243667f736e /arch/arm/mach-sa1100
parentbcccc50ce8fcc833cfed4bb71ede211a6ef5b84a (diff)
ARM: sa11x0/pxa: convert OS timer registers to IOMEM
Make the OS timer registers have IOMEM like properities so they can be passed to readl_relaxed/writel_relaxed() et.al. rather than being straight volatile dereferences. Add linux/io.h includes where required. linux/io.h includes added to arch/arm/mach-sa1100/cpu-sa1100.c, arch/arm/mach-sa1100/jornada720_ssp.c, arch/arm/mach-sa1100/leds-lart.c drivers/input/touchscreen/jornada720_ts.c, drivers/pcmcia/sa1100_shannon.c from Arnd. This fixes these warnings: arch/arm/mach-sa1100/time.c: In function 'sa1100_timer_init': arch/arm/mach-sa1100/time.c:104: warning: passing argument 1 of 'clocksource_mmio_init' discards qualifiers from pointer target type arch/arm/mach-pxa/time.c: In function 'pxa_timer_init': arch/arm/mach-pxa/time.c:126: warning: passing argument 1 of 'clocksource_mmio_init' discards qualifiers from pointer target type Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/mach-sa1100')
-rw-r--r--arch/arm/mach-sa1100/assabet.c2
-rw-r--r--arch/arm/mach-sa1100/cpu-sa1100.c1
-rw-r--r--arch/arm/mach-sa1100/cpu-sa1110.c1
-rw-r--r--arch/arm/mach-sa1100/include/mach/SA-1100.h16
-rw-r--r--arch/arm/mach-sa1100/include/mach/gpio.h1
-rw-r--r--arch/arm/mach-sa1100/include/mach/hardware.h6
-rw-r--r--arch/arm/mach-sa1100/include/mach/uncompress.h2
-rw-r--r--arch/arm/mach-sa1100/irq.c1
-rw-r--r--arch/arm/mach-sa1100/jornada720_ssp.c1
-rw-r--r--arch/arm/mach-sa1100/leds-cerf.c1
-rw-r--r--arch/arm/mach-sa1100/leds-lart.c1
-rw-r--r--arch/arm/mach-sa1100/pm.c1
-rw-r--r--arch/arm/mach-sa1100/time.c48
13 files changed, 47 insertions, 35 deletions
diff --git a/arch/arm/mach-sa1100/assabet.c b/arch/arm/mach-sa1100/assabet.c
index d1dc7f1a239c..d673211f121c 100644
--- a/arch/arm/mach-sa1100/assabet.c
+++ b/arch/arm/mach-sa1100/assabet.c
@@ -362,7 +362,7 @@ static void __init assabet_init(void)
static void __init map_sa1100_gpio_regs( void )
{
unsigned long phys = __PREG(GPLR) & PMD_MASK;
- unsigned long virt = io_p2v(phys);
+ unsigned long virt = (unsigned long)io_p2v(phys);
int prot = PMD_TYPE_SECT | PMD_SECT_AP_WRITE | PMD_DOMAIN(DOMAIN_IO);
pmd_t *pmd;
diff --git a/arch/arm/mach-sa1100/cpu-sa1100.c b/arch/arm/mach-sa1100/cpu-sa1100.c
index 19b2053f5af4..e8f4d1e19233 100644
--- a/arch/arm/mach-sa1100/cpu-sa1100.c
+++ b/arch/arm/mach-sa1100/cpu-sa1100.c
@@ -87,6 +87,7 @@
#include <linux/types.h>
#include <linux/init.h>
#include <linux/cpufreq.h>
+#include <linux/io.h>
#include <asm/cputype.h>
diff --git a/arch/arm/mach-sa1100/cpu-sa1110.c b/arch/arm/mach-sa1100/cpu-sa1110.c
index 675bf8ef97e8..48c45b0c92bb 100644
--- a/arch/arm/mach-sa1100/cpu-sa1110.c
+++ b/arch/arm/mach-sa1100/cpu-sa1110.c
@@ -19,6 +19,7 @@
#include <linux/cpufreq.h>
#include <linux/delay.h>
#include <linux/init.h>
+#include <linux/io.h>
#include <linux/kernel.h>
#include <linux/moduleparam.h>
#include <linux/types.h>
diff --git a/arch/arm/mach-sa1100/include/mach/SA-1100.h b/arch/arm/mach-sa1100/include/mach/SA-1100.h
index 3f2d1b60188c..0ac6cc08a19c 100644
--- a/arch/arm/mach-sa1100/include/mach/SA-1100.h
+++ b/arch/arm/mach-sa1100/include/mach/SA-1100.h
@@ -830,14 +830,14 @@
* (read/write).
*/
-#define OSMR0 __REG(0x90000000) /* OS timer Match Reg. 0 */
-#define OSMR1 __REG(0x90000004) /* OS timer Match Reg. 1 */
-#define OSMR2 __REG(0x90000008) /* OS timer Match Reg. 2 */
-#define OSMR3 __REG(0x9000000c) /* OS timer Match Reg. 3 */
-#define OSCR __REG(0x90000010) /* OS timer Counter Reg. */
-#define OSSR __REG(0x90000014 ) /* OS timer Status Reg. */
-#define OWER __REG(0x90000018 ) /* OS timer Watch-dog Enable Reg. */
-#define OIER __REG(0x9000001C ) /* OS timer Interrupt Enable Reg. */
+#define OSMR0 io_p2v(0x90000000) /* OS timer Match Reg. 0 */
+#define OSMR1 io_p2v(0x90000004) /* OS timer Match Reg. 1 */
+#define OSMR2 io_p2v(0x90000008) /* OS timer Match Reg. 2 */
+#define OSMR3 io_p2v(0x9000000c) /* OS timer Match Reg. 3 */
+#define OSCR io_p2v(0x90000010) /* OS timer Counter Reg. */
+#define OSSR io_p2v(0x90000014) /* OS timer Status Reg. */
+#define OWER io_p2v(0x90000018) /* OS timer Watch-dog Enable Reg. */
+#define OIER io_p2v(0x9000001C) /* OS timer Interrupt Enable Reg. */
#define OSSR_M(Nb) /* Match detected [0..3] */ \
(0x00000001 << (Nb))
diff --git a/arch/arm/mach-sa1100/include/mach/gpio.h b/arch/arm/mach-sa1100/include/mach/gpio.h
index a38fc4f54241..6a9eecf3137e 100644
--- a/arch/arm/mach-sa1100/include/mach/gpio.h
+++ b/arch/arm/mach-sa1100/include/mach/gpio.h
@@ -24,6 +24,7 @@
#ifndef __ASM_ARCH_SA1100_GPIO_H
#define __ASM_ARCH_SA1100_GPIO_H
+#include <linux/io.h>
#include <mach/hardware.h>
#include <asm/irq.h>
#include <asm-generic/gpio.h>
diff --git a/arch/arm/mach-sa1100/include/mach/hardware.h b/arch/arm/mach-sa1100/include/mach/hardware.h
index 99f5856d8de4..cbedd75a9d65 100644
--- a/arch/arm/mach-sa1100/include/mach/hardware.h
+++ b/arch/arm/mach-sa1100/include/mach/hardware.h
@@ -32,7 +32,7 @@
#define PIO_START 0x80000000 /* physical start of IO space */
#define io_p2v( x ) \
- ( (((x)&0x00ffffff) | (((x)&0x30000000)>>VIO_SHIFT)) + VIO_BASE )
+ IOMEM( (((x)&0x00ffffff) | (((x)&0x30000000)>>VIO_SHIFT)) + VIO_BASE )
#define io_v2p( x ) \
( (((x)&0x00ffffff) | (((x)&(0x30000000>>VIO_SHIFT))<<VIO_SHIFT)) + PIO_START )
@@ -47,6 +47,8 @@
#define CPU_SA1110_ID (0x6901b110)
#define CPU_SA1110_MASK (0xfffffff0)
+#define __MREG(x) IOMEM(io_p2v(x))
+
#ifndef __ASSEMBLY__
#include <asm/cputype.h>
@@ -56,7 +58,7 @@
#define cpu_is_sa1100() ((read_cpuid_id() & CPU_SA1100_MASK) == CPU_SA1100_ID)
#define cpu_is_sa1110() ((read_cpuid_id() & CPU_SA1110_MASK) == CPU_SA1110_ID)
-# define __REG(x) (*((volatile unsigned long *)io_p2v(x)))
+# define __REG(x) (*((volatile unsigned long __iomem *)io_p2v(x)))
# define __PREG(x) (io_v2p((unsigned long)&(x)))
static inline unsigned long get_clock_tick_rate(void)
diff --git a/arch/arm/mach-sa1100/include/mach/uncompress.h b/arch/arm/mach-sa1100/include/mach/uncompress.h
index 6cb39ddde656..5cf71da60e42 100644
--- a/arch/arm/mach-sa1100/include/mach/uncompress.h
+++ b/arch/arm/mach-sa1100/include/mach/uncompress.h
@@ -8,6 +8,8 @@
#include "hardware.h"
+#define IOMEM(x) (x)
+
/*
* The following code assumes the serial port has already been
* initialized by the bootloader. We search for the first enabled
diff --git a/arch/arm/mach-sa1100/irq.c b/arch/arm/mach-sa1100/irq.c
index 516ccc25d7fd..2124f1fc2fbe 100644
--- a/arch/arm/mach-sa1100/irq.c
+++ b/arch/arm/mach-sa1100/irq.c
@@ -12,6 +12,7 @@
#include <linux/init.h>
#include <linux/module.h>
#include <linux/interrupt.h>
+#include <linux/io.h>
#include <linux/irq.h>
#include <linux/ioport.h>
#include <linux/syscore_ops.h>
diff --git a/arch/arm/mach-sa1100/jornada720_ssp.c b/arch/arm/mach-sa1100/jornada720_ssp.c
index b412fc09c80c..7f07f08d8968 100644
--- a/arch/arm/mach-sa1100/jornada720_ssp.c
+++ b/arch/arm/mach-sa1100/jornada720_ssp.c
@@ -18,6 +18,7 @@
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/sched.h>
+#include <linux/io.h>
#include <mach/hardware.h>
#include <mach/jornada720.h>
diff --git a/arch/arm/mach-sa1100/leds-cerf.c b/arch/arm/mach-sa1100/leds-cerf.c
index 040540fb7d8a..30fc3b2bf555 100644
--- a/arch/arm/mach-sa1100/leds-cerf.c
+++ b/arch/arm/mach-sa1100/leds-cerf.c
@@ -4,6 +4,7 @@
* Author: ???
*/
#include <linux/init.h>
+#include <linux/io.h>
#include <mach/hardware.h>
#include <asm/leds.h>
diff --git a/arch/arm/mach-sa1100/leds-lart.c b/arch/arm/mach-sa1100/leds-lart.c
index a51830c60e53..50a5b143b460 100644
--- a/arch/arm/mach-sa1100/leds-lart.c
+++ b/arch/arm/mach-sa1100/leds-lart.c
@@ -10,6 +10,7 @@
* pace of the LED.
*/
#include <linux/init.h>
+#include <linux/io.h>
#include <mach/hardware.h>
#include <asm/leds.h>
diff --git a/arch/arm/mach-sa1100/pm.c b/arch/arm/mach-sa1100/pm.c
index 690cf0ce5c0c..6645d1e31f14 100644
--- a/arch/arm/mach-sa1100/pm.c
+++ b/arch/arm/mach-sa1100/pm.c
@@ -23,6 +23,7 @@
* Storage is local on the stack now.
*/
#include <linux/init.h>
+#include <linux/io.h>
#include <linux/suspend.h>
#include <linux/errno.h>
#include <linux/time.h>
diff --git a/arch/arm/mach-sa1100/time.c b/arch/arm/mach-sa1100/time.c
index 6af26e8d55e6..80702c9ecc77 100644
--- a/arch/arm/mach-sa1100/time.c
+++ b/arch/arm/mach-sa1100/time.c
@@ -22,7 +22,7 @@
static u32 notrace sa1100_read_sched_clock(void)
{
- return OSCR;
+ return readl_relaxed(OSCR);
}
#define MIN_OSCR_DELTA 2
@@ -32,8 +32,8 @@ static irqreturn_t sa1100_ost0_interrupt(int irq, void *dev_id)
struct clock_event_device *c = dev_id;
/* Disarm the compare/match, signal the event. */
- OIER &= ~OIER_E0;
- OSSR = OSSR_M0;
+ writel_relaxed(readl_relaxed(OIER) & ~OIER_E0, OIER);
+ writel_relaxed(OSSR_M0, OSSR);
c->event_handler(c);
return IRQ_HANDLED;
@@ -44,10 +44,10 @@ sa1100_osmr0_set_next_event(unsigned long delta, struct clock_event_device *c)
{
unsigned long next, oscr;
- OIER |= OIER_E0;
- next = OSCR + delta;
- OSMR0 = next;
- oscr = OSCR;
+ writel_relaxed(readl_relaxed(OIER) | OIER_E0, OIER);
+ next = readl_relaxed(OSCR) + delta;
+ writel_relaxed(next, OSMR0);
+ oscr = readl_relaxed(OSCR);
return (signed)(next - oscr) <= MIN_OSCR_DELTA ? -ETIME : 0;
}
@@ -59,8 +59,8 @@ sa1100_osmr0_set_mode(enum clock_event_mode mode, struct clock_event_device *c)
case CLOCK_EVT_MODE_ONESHOT:
case CLOCK_EVT_MODE_UNUSED:
case CLOCK_EVT_MODE_SHUTDOWN:
- OIER &= ~OIER_E0;
- OSSR = OSSR_M0;
+ writel_relaxed(readl_relaxed(OIER) & ~OIER_E0, OIER);
+ writel_relaxed(OSSR_M0, OSSR);
break;
case CLOCK_EVT_MODE_RESUME:
@@ -86,8 +86,8 @@ static struct irqaction sa1100_timer_irq = {
static void __init sa1100_timer_init(void)
{
- OIER = 0;
- OSSR = OSSR_M0 | OSSR_M1 | OSSR_M2 | OSSR_M3;
+ writel_relaxed(0, OIER);
+ writel_relaxed(OSSR_M0 | OSSR_M1 | OSSR_M2 | OSSR_M3, OSSR);
setup_sched_clock(sa1100_read_sched_clock, 32, 3686400);
@@ -100,7 +100,7 @@ static void __init sa1100_timer_init(void)
setup_irq(IRQ_OST0, &sa1100_timer_irq);
- clocksource_mmio_init(&OSCR, "oscr", CLOCK_TICK_RATE, 200, 32,
+ clocksource_mmio_init(OSCR, "oscr", CLOCK_TICK_RATE, 200, 32,
clocksource_mmio_readl_up);
clockevents_register_device(&ckevt_sa1100_osmr0);
}
@@ -110,26 +110,26 @@ unsigned long osmr[4], oier;
static void sa1100_timer_suspend(void)
{
- osmr[0] = OSMR0;
- osmr[1] = OSMR1;
- osmr[2] = OSMR2;
- osmr[3] = OSMR3;
- oier = OIER;
+ osmr[0] = readl_relaxed(OSMR0);
+ osmr[1] = readl_relaxed(OSMR1);
+ osmr[2] = readl_relaxed(OSMR2);
+ osmr[3] = readl_relaxed(OSMR3);
+ oier = readl_relaxed(OIER);
}
static void sa1100_timer_resume(void)
{
- OSSR = 0x0f;
- OSMR0 = osmr[0];
- OSMR1 = osmr[1];
- OSMR2 = osmr[2];
- OSMR3 = osmr[3];
- OIER = oier;
+ writel_relaxed(0x0f, OSSR);
+ writel_relaxed(osmr[0], OSMR0);
+ writel_relaxed(osmr[1], OSMR1);
+ writel_relaxed(osmr[2], OSMR2);
+ writel_relaxed(osmr[3], OSMR3);
+ writel_relaxed(oier, OIER);
/*
* OSMR0 is the system timer: make sure OSCR is sufficiently behind
*/
- OSCR = OSMR0 - LATCH;
+ writel_relaxed(OSMR0 - LATCH, OSCR);
}
#else
#define sa1100_timer_suspend NULL