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authorArnd Bergmann <arnd@arndb.de>2012-03-16 19:51:30 +0000
committerArnd Bergmann <arnd@arndb.de>2012-03-16 19:51:30 +0000
commitd4ef467aea0fdcd5e75a4bbfaf97e579bbe532f3 (patch)
tree5b91923fb5031c6963a60ee33ee7671d178f26b2 /arch/arm/mach-shmobile
parent4acf18232f80c29906356f0f35b2d5f800b5953d (diff)
parent71de5c46e0600b72df58269e80da343e354ddbd7 (diff)
downloadlinux-d4ef467aea0fdcd5e75a4bbfaf97e579bbe532f3.tar.gz
Merge branch 'ux500/dt' into next/dt2
* ux500/dt:
  ARM: ux500: Provide local timer support for Device Tree
  ARM: ux500: Enable PL022 SSP Controller in Device Tree
  ARM: ux500: Enable PL310 Level 2 Cache Controller in Device Tree
  ARM: ux500: Enable PL011 AMBA UART Controller for Device Tree
  ARM: ux500: Enable Cortex-A9 GIC (Generic Interrupt Controller) in Device Tree
  ARM: ux500: db8500: list most devices in the snowball device tree
  ARM: ux500: split dts file for snowball into generic part
  ARM: ux500: combine the board init functions for DT boot
  ARM: ux500: Initial Device Tree support for Snowball
  ARM: ux500: CONFIG: Enable Device Tree support for future endeavours
  ARM: ux500: fix compilation after local timer rework

(adds dependency on localtimer branch, irqdomain branch and ux500/soc
branch)

Conflicts:
	arch/arm/mach-ux500/devices-common.c

This adds patches from Lee Jones, Niklas Hernaeus and myself to provide
initial device tree support on the ux500 platform. The pull request from
Lee contained some other changes, so I rebased the patches on top of
the branches that are actually dependencies for this.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'arch/arm/mach-shmobile')
-rw-r--r--arch/arm/mach-shmobile/Makefile1
-rw-r--r--arch/arm/mach-shmobile/include/mach/common.h2
-rw-r--r--arch/arm/mach-shmobile/localtimer.c26
-rw-r--r--arch/arm/mach-shmobile/platsmp.c1
-rw-r--r--arch/arm/mach-shmobile/smp-r8a7779.c8
-rw-r--r--arch/arm/mach-shmobile/smp-sh73a0.c8
-rw-r--r--arch/arm/mach-shmobile/timer.c10
7 files changed, 18 insertions, 38 deletions
diff --git a/arch/arm/mach-shmobile/Makefile b/arch/arm/mach-shmobile/Makefile
index 7ad6954c46cd..e7c2590b75d9 100644
--- a/arch/arm/mach-shmobile/Makefile
+++ b/arch/arm/mach-shmobile/Makefile
@@ -16,7 +16,6 @@ obj-$(CONFIG_ARCH_R8A7779)	+= setup-r8a7779.o clock-r8a7779.o intc-r8a7779.o
 # SMP objects
 smp-y				:= platsmp.o headsmp.o
 smp-$(CONFIG_HOTPLUG_CPU)	+= hotplug.o
-smp-$(CONFIG_LOCAL_TIMERS)	+= localtimer.o
 smp-$(CONFIG_ARCH_SH73A0)	+= smp-sh73a0.o
 smp-$(CONFIG_ARCH_R8A7779)	+= smp-r8a7779.o
 
diff --git a/arch/arm/mach-shmobile/include/mach/common.h b/arch/arm/mach-shmobile/include/mach/common.h
index e4b945e271e7..9fde3eb686a6 100644
--- a/arch/arm/mach-shmobile/include/mach/common.h
+++ b/arch/arm/mach-shmobile/include/mach/common.h
@@ -2,6 +2,8 @@
 #define __ARCH_MACH_COMMON_H
 
 extern struct sys_timer shmobile_timer;
+struct twd_local_timer;
+void shmobile_twd_init(struct twd_local_timer *twd_local_timer);
 extern void shmobile_setup_console(void);
 extern void shmobile_secondary_vector(void);
 extern int shmobile_platform_cpu_kill(unsigned int cpu);
diff --git a/arch/arm/mach-shmobile/localtimer.c b/arch/arm/mach-shmobile/localtimer.c
deleted file mode 100644
index ad9ccc9900c8..000000000000
--- a/arch/arm/mach-shmobile/localtimer.c
+++ /dev/null
@@ -1,26 +0,0 @@
-/*
- * SMP support for R-Mobile / SH-Mobile - local timer portion
- *
- * Copyright (C) 2010  Magnus Damm
- *
- * Based on vexpress, Copyright (C) 2002 ARM Ltd, All Rights Reserved
- *
- * 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.
- */
-#include <linux/init.h>
-#include <linux/smp.h>
-#include <linux/clockchips.h>
-#include <asm/smp_twd.h>
-#include <asm/localtimer.h>
-
-/*
- * Setup the local clock events for a CPU.
- */
-int __cpuinit local_timer_setup(struct clock_event_device *evt)
-{
-	evt->irq = 29;
-	twd_timer_setup(evt);
-	return 0;
-}
diff --git a/arch/arm/mach-shmobile/platsmp.c b/arch/arm/mach-shmobile/platsmp.c
index 993381257f69..45fa3924c6a1 100644
--- a/arch/arm/mach-shmobile/platsmp.c
+++ b/arch/arm/mach-shmobile/platsmp.c
@@ -17,7 +17,6 @@
 #include <linux/smp.h>
 #include <linux/io.h>
 #include <asm/hardware/gic.h>
-#include <asm/localtimer.h>
 #include <asm/mach-types.h>
 #include <mach/common.h>
 
diff --git a/arch/arm/mach-shmobile/smp-r8a7779.c b/arch/arm/mach-shmobile/smp-r8a7779.c
index 4fe2e9eaf501..9bb7b8575a1f 100644
--- a/arch/arm/mach-shmobile/smp-r8a7779.c
+++ b/arch/arm/mach-shmobile/smp-r8a7779.c
@@ -64,6 +64,8 @@ static void __iomem *scu_base_addr(void)
 static DEFINE_SPINLOCK(scu_lock);
 static unsigned long tmp;
 
+static DEFINE_TWD_LOCAL_TIMER(twd_local_timer, 0xf0000600, 29);
+
 static void modify_scu_cpu_psr(unsigned long set, unsigned long clr)
 {
 	void __iomem *scu_base = scu_base_addr();
@@ -82,11 +84,7 @@ unsigned int __init r8a7779_get_core_count(void)
 {
 	void __iomem *scu_base = scu_base_addr();
 
-#ifdef CONFIG_HAVE_ARM_TWD
-	/* twd_base needs to be initialized before percpu_timer_setup() */
-	twd_base = (void __iomem *)0xf0000600;
-#endif
-
+	shmobile_twd_init(&twd_local_timer);
 	return scu_get_core_count(scu_base);
 }
 
diff --git a/arch/arm/mach-shmobile/smp-sh73a0.c b/arch/arm/mach-shmobile/smp-sh73a0.c
index 2d0d4212be41..c0a9093ba3a8 100644
--- a/arch/arm/mach-shmobile/smp-sh73a0.c
+++ b/arch/arm/mach-shmobile/smp-sh73a0.c
@@ -42,6 +42,8 @@ static void __iomem *scu_base_addr(void)
 static DEFINE_SPINLOCK(scu_lock);
 static unsigned long tmp;
 
+static DEFINE_TWD_LOCAL_TIMER(twd_local_timer, 0xf0000600, 29);
+
 static void modify_scu_cpu_psr(unsigned long set, unsigned long clr)
 {
 	void __iomem *scu_base = scu_base_addr();
@@ -60,11 +62,7 @@ unsigned int __init sh73a0_get_core_count(void)
 {
 	void __iomem *scu_base = scu_base_addr();
 
-#ifdef CONFIG_HAVE_ARM_TWD
-	/* twd_base needs to be initialized before percpu_timer_setup() */
-	twd_base = (void __iomem *)0xf0000600;
-#endif
-
+	shmobile_twd_init(&twd_local_timer);
 	return scu_get_core_count(scu_base);
 }
 
diff --git a/arch/arm/mach-shmobile/timer.c b/arch/arm/mach-shmobile/timer.c
index 895794b543cd..be16231e86fc 100644
--- a/arch/arm/mach-shmobile/timer.c
+++ b/arch/arm/mach-shmobile/timer.c
@@ -20,6 +20,7 @@
  */
 #include <linux/platform_device.h>
 #include <asm/mach/time.h>
+#include <asm/smp_twd.h>
 
 static void __init shmobile_late_time_init(void)
 {
@@ -41,6 +42,15 @@ static void __init shmobile_timer_init(void)
 	late_time_init = shmobile_late_time_init;
 }
 
+void __init shmobile_twd_init(struct twd_local_timer *twd_local_timer)
+{
+#ifdef CONFIG_HAVE_ARM_TWD
+	int err = twd_local_timer_register(twd_local_timer);
+	if (err)
+		pr_err("twd_local_timer_register failed %d\n", err);
+#endif
+}
+
 struct sys_timer shmobile_timer = {
 	.init		= shmobile_timer_init,
 };