Merge arm integrator time.h removal

arch/arm/Kconfig

@@ -83,6 +83,8 @@ config ARCH_CLPS711X
 
 config ARCH_CO285
 	bool "Co-EBSA285"
+	select FOOTBRIDGE
+	select FOOTBRIDGE_ADDIN
 
 config ARCH_EBSA110
 	bool "EBSA-110"
@@ -101,6 +103,7 @@ config ARCH_CAMELOT
 
 config ARCH_FOOTBRIDGE
 	bool "FootBridge"
+	select FOOTBRIDGE
 
 config ARCH_INTEGRATOR
 	bool "Integrator"
@@ -213,28 +216,6 @@ config TIMER_ACORN
 	depends on ARCH_ACORN || ARCH_CLPS7500
 	default y
 
-#####################################################################
-# Footbridge support
-config FOOTBRIDGE
-	bool
-	depends on ARCH_CO285 || ARCH_FOOTBRIDGE
-	default y
-
-config FOOTBRIDGE_HOST
-	bool
-	depends on ARCH_CATS || ARCH_EBSA285_HOST || ARCH_NETWINDER || ARCH_PERSONAL_SERVER
-	default y
-
-config FOOTBRIDGE_ADDIN
-	bool
-	depends on ARCH_CO285 || ARCH_EBSA285_ADDIN
-	default y
-
-config ARCH_EBSA285
-	bool
-	depends on ARCH_EBSA285_HOST || ARCH_EBSA285_ADDIN
-	default y
-
 #####################################################################
 # SA1111 support
 config SA1111

arch/arm/Makefile

@@ -109,6 +109,11 @@ ifeq ($(incdir-y),)
 incdir-y := $(machine-y)
 endif
 INCDIR   := arch-$(incdir-y)
+ifneq ($(machine-y),)
+MACHINE  := arch/arm/mach-$(machine-y)/
+else
+MACHINE  :=
+endif
   
 export	TEXTADDR GZFLAGS
 
@@ -120,9 +125,7 @@ endif
 
 # If we have a machine-specific directory, then include it in the build.
 core-y				+= arch/arm/kernel/ arch/arm/mm/ arch/arm/common/
-ifneq ($(machine-y),)
-core-y				+= arch/arm/mach-$(machine-y)/
-endif
+core-y				+= $(MACHINE)
 core-$(CONFIG_FPE_NWFPE)	+= arch/arm/nwfpe/
 core-$(CONFIG_FPE_FASTFPE)	+= $(FASTFPE_OBJ)
 core-$(CONFIG_VFP)		+= arch/arm/vfp/
@@ -162,10 +165,10 @@ maketools: include/asm-arm/constants.h include/linux/version.h FORCE
 bzImage: zImage
 
 zImage Image bootpImage uImage: vmlinux
-	$(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
+	$(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/$@
 
 zinstall install: vmlinux
-	$(Q)$(MAKE) $(build)=$(boot) $@
+	$(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $@
 
 CLEAN_FILES += include/asm-arm/constants.h* include/asm-arm/mach-types.h \
 	       include/asm-arm/arch include/asm-arm/.arch
@@ -175,8 +178,8 @@ archclean:
 	$(Q)$(MAKE) $(clean)=$(boot)
 
 # My testing targets (bypasses dependencies)
-bp:;	$(Q)$(MAKE) $(build)=$(boot) $(boot)/bootpImage
-i zi:;	$(Q)$(MAKE) $(build)=$(boot) $@
+bp:;	$(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/bootpImage
+i zi:;	$(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $@
 
 arch/$(ARCH)/kernel/asm-offsets.s: include/asm include/linux/version.h \
 				   include/asm-arm/.arch

arch/arm/boot/Makefile

@@ -10,69 +10,14 @@
 
 MKIMAGE         := $(srctree)/scripts/mkuboot.sh
 
+ifneq ($(MACHINE),)
+include $(srctree)/$(MACHINE)/Makefile.boot
+endif
+
 # Note: the following conditions must always be true:
 #   ZRELADDR == virt_to_phys(TEXTADDR)
-#   PARAMS_PHYS must be with 4MB of ZRELADDR
+#   PARAMS_PHYS must be within 4MB of ZRELADDR
 #   INITRD_PHYS must be in RAM
-
-   zreladdr-$(CONFIG_ARCH_RPC)		:= 0x10008000
-params_phys-$(CONFIG_ARCH_RPC)		:= 0x10000100
-initrd_phys-$(CONFIG_ARCH_RPC)		:= 0x18000000
-   zreladdr-$(CONFIG_ARCH_CLPS7500)	:= 0x10008000
-   zreladdr-$(CONFIG_ARCH_CLPS7500)	:= 0x10008000
-   zreladdr-$(CONFIG_ARCH_EBSA110)	:= 0x00008000
-params_phys-$(CONFIG_ARCH_EBSA110)	:= 0x00000400
-initrd_phys-$(CONFIG_ARCH_EBSA110)	:= 0x00800000
-  ztextaddr-$(CONFIG_ARCH_SHARK)	:= 0x08508000
-   zreladdr-$(CONFIG_ARCH_SHARK)	:= 0x08008000
-   zreladdr-$(CONFIG_FOOTBRIDGE)	:= 0x00008000
-params_phys-$(CONFIG_FOOTBRIDGE)	:= 0x00000100
-initrd_phys-$(CONFIG_FOOTBRIDGE)	:= 0x00800000
-   zreladdr-$(CONFIG_ARCH_INTEGRATOR)	:= 0x00008000
-params_phys-$(CONFIG_ARCH_INTEGRATOR)	:= 0x00000100
-initrd_phys-$(CONFIG_ARCH_INTEGRATOR)	:= 0x00800000
-   zreladdr-$(CONFIG_ARCH_CAMELOT)	:= 0x00008000
-   zreladdr-$(CONFIG_ARCH_NEXUSPCI)	:= 0x40008000
-   zreladdr-$(CONFIG_ARCH_L7200)	:= 0xf0008000
-# The standard locations for stuff on CLPS711x type processors
-   zreladdr-$(CONFIG_ARCH_CLPS711X)	:= 0xc0028000 
-params_phys-$(CONFIG_ARCH_CLPS711X)	:= 0xc0000100
-# Should probably have some agreement on these...
-initrd_phys-$(CONFIG_ARCH_P720T)	:= 0xc0400000
-initrd_phys-$(CONFIG_ARCH_CDB89712)	:= 0x00700000
-   zreladdr-$(CONFIG_ARCH_SA1100)	:= 0xc0008000
-ifeq ($(CONFIG_ARCH_SA1100),y)
-   zreladdr-$(CONFIG_SA1111)		:= 0xc0208000
-endif
-params_phys-$(CONFIG_ARCH_SA1100)	:= 0xc0000100
-initrd_phys-$(CONFIG_ARCH_SA1100)	:= 0xc0800000
-   zreladdr-$(CONFIG_ARCH_PXA)		:= 0xa0008000
-   zreladdr-$(CONFIG_ARCH_MX1ADS)	:= 0x08008000
-   zreladdr-$(CONFIG_ARCH_IOP3XX)	:= 0xa0008000
-params_phys-$(CONFIG_ARCH_IOP3XX)	:= 0xa0000100
-initrd_phys-$(CONFIG_ARCH_IOP3XX)   	:= 0xa0800000
-ifeq ($(CONFIG_ARCH_IOP331),y)
-   zreladdr-$(CONFIG_ARCH_IOP3XX)      	:= 0x00008000
-params_phys-$(CONFIG_ARCH_IOP3XX)      	:= 0x00000100
-initrd_phys-$(CONFIG_ARCH_IOP3XX)      	:= 0x00800000
-endif
-   zreladdr-$(CONFIG_ARCH_IXP4XX)	:= 0x00008000
-params-phys-$(CONFIG_ARCH_IXP4XX)	:= 0x00000100
-   zreladdr-$(CONFIG_ARCH_IXP2000)	:= 0x00008000
-params-phys-$(CONFIG_ARCH_IXP2000)	:= 0x00000100
-   zreladdr-$(CONFIG_ARCH_OMAP)		:= 0x10008000
-params_phys-$(CONFIG_ARCH_OMAP)		:= 0x10000100
-initrd_phys-$(CONFIG_ARCH_OMAP)		:= 0x10800000
-   zreladdr-$(CONFIG_ARCH_LH7A40X)	:= 0xc0008000
-params_phys-$(CONFIG_ARCH_LH7A40X)	:= 0xc0000100
-initrd_phys-$(CONFIG_ARCH_LH7A40X)	:= 0xc4000000
-   zreladdr-$(CONFIG_ARCH_S3C2410)	:= 0x30008000
-params_phys-$(CONFIG_ARCH_S3C2410)	:= 0x30000100
-   zreladdr-$(CONFIG_ARCH_VERSATILE_PB)	:= 0x00008000
-params_phys-$(CONFIG_ARCH_VERSATILE_PB)	:= 0x00000100
-initrd_phys-$(CONFIG_ARCH_VERSATILE_PB)	:= 0x00800000
-   zreladdr-$(CONFIG_ARCH_H720X)	:= 0x40008000
-
 ZRELADDR    := $(zreladdr-y)
 PARAMS_PHYS := $(params_phys-y)
 INITRD_PHYS := $(initrd_phys-y)

arch/arm/common/Makefile

@@ -2,6 +2,7 @@
 # Makefile for the linux kernel.
 #
 
+obj-y				+= rtctime.o
 obj-$(CONFIG_ARM_AMBA)		+= amba.o
 obj-$(CONFIG_ICST525)		+= icst525.o
 obj-$(CONFIG_SA1111)		+= sa1111.o

arch/arm/common/time-acorn.c

@@ -15,6 +15,7 @@
  */
 #include <linux/timex.h>
 #include <linux/init.h>
+#include <linux/interrupt.h>
 
 #include <asm/hardware.h>
 #include <asm/io.h>
@@ -22,7 +23,7 @@
 
 #include <asm/mach/time.h>
 
-static unsigned long ioctime_gettimeoffset(void)
+unsigned long ioc_timer_gettimeoffset(void)
 {
 	unsigned int count1, count2, status;
 	long offset;
@@ -62,6 +63,33 @@ void __init ioctime_init(void)
 	ioc_writeb(LATCH & 255, IOC_T0LTCHL);
 	ioc_writeb(LATCH >> 8, IOC_T0LTCHH);
 	ioc_writeb(0, IOC_T0GO);
+}
+
+static irqreturn_t
+ioc_timer_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+{
+	timer_tick(regs);
 
-	gettimeoffset = ioctime_gettimeoffset;
+	return IRQ_HANDLED;
 }
+
+static struct irqaction ioc_timer_irq = {
+	.name		= "timer",
+	.flags		= SA_INTERRUPT,
+	.handler	= ioc_timer_interrupt
+};
+
+/*
+ * Set up timer interrupt.
+ */
+static void __init ioc_timer_init(void)
+{
+	ioctime_init();
+	setup_irq(IRQ_TIMER, &ioc_timer_irq);
+}
+
+struct sys_timer ioc_timer = {
+	.init		= ioc_timer_init,
+	.offset		= ioc_timer_gettimeoffset,
+};
+

arch/arm/kernel/armksyms.c

@@ -60,7 +60,8 @@ EXPORT_SYMBOL_ALIAS(fp_send_sig,send_sig);
 EXPORT_SYMBOL(__backtrace);
 
 	/* platform dependent support */
-EXPORT_SYMBOL(udelay);
+EXPORT_SYMBOL(__udelay);
+EXPORT_SYMBOL(__const_udelay);
 
 	/* networking */
 EXPORT_SYMBOL(csum_partial);

arch/arm/kernel/setup.c

@@ -726,7 +726,7 @@ void __init setup_arch(char **cmdline_p)
 	 * Set up various architecture-specific pointers
 	 */
 	init_arch_irq = mdesc->init_irq;
-	init_arch_time = mdesc->init_time;
+	system_timer = mdesc->timer;
 	init_machine = mdesc->init_machine;
 
 #ifdef CONFIG_VT

arch/arm/kernel/signal.c

@@ -126,25 +126,6 @@ sys_sigaction(int sig, const struct old_sigaction __user *act,
 	return ret;
 }
 
-/*
- * Do a signal return; undo the signal stack.
- */
-struct sigframe
-{
-	struct sigcontext sc;
-	unsigned long extramask[_NSIG_WORDS-1];
-	unsigned long retcode;
-};
-
-struct rt_sigframe
-{
-	struct siginfo __user *pinfo;
-	void __user *puc;
-	struct siginfo info;
-	struct ucontext uc;
-	unsigned long retcode;
-};
-
 #ifdef CONFIG_IWMMXT
 
 /* iwmmxt_area is 0x98 bytes long, preceeded by 8 bytes of signature */
@@ -152,8 +133,15 @@ struct rt_sigframe
 #define IWMMXT_MAGIC0		0x12ef842a
 #define IWMMXT_MAGIC1		0x1c07ca71
 
-static int page_present(struct mm_struct *mm, unsigned long addr, int wr)
+struct iwmmxt_sigframe {
+	unsigned long	magic0;
+	unsigned long	magic1;
+	unsigned long	storage[0x98/4];
+};
+
+static int page_present(struct mm_struct *mm, void __user *uptr, int wr)
 {
+	unsigned long addr = (unsigned long)uptr;
 	pgd_t *pgd = pgd_offset(mm, addr);
 	if (pgd_present(*pgd)) {
 		pmd_t *pmd = pmd_offset(pgd, addr);
@@ -165,49 +153,66 @@ static int page_present(struct mm_struct *mm, unsigned long addr, int wr)
 	return 0;
 }
 
-static int
-preserve_iwmmxt_context(void *iwmmxt_save_area)
+static int copy_locked(void __user *uptr, void *kptr, size_t size, int write,
+		       void (*copyfn)(void *, void __user *))
+{
+	unsigned char v, __user *userptr = uptr;
+	int err = 0;
+
+	do {
+		struct mm_struct *mm;
+
+		if (write) {
+			__put_user_error(0, userptr, err);
+			__put_user_error(0, userptr + size - 1, err);
+		} else {
+			__get_user_error(v, userptr, err);
+			__get_user_error(v, userptr + size - 1, err);
+		}
+
+		if (err)
+			break;
+
+		mm = current->mm;
+		spin_lock(&mm->page_table_lock);
+		if (page_present(mm, userptr, write) &&
+		    page_present(mm, userptr + size - 1, write)) {
+		    	copyfn(kptr, uptr);
+		} else
+			err = 1;
+		spin_unlock(&mm->page_table_lock);
+	} while (err);
+
+	return err;
+}
+
+static int preserve_iwmmxt_context(struct iwmmxt_sigframe *frame)
 {
 	int err = 0;
 
 	/* the iWMMXt context must be 64 bit aligned */
-	long *iwmmxt_storage = (long *)(((long)iwmmxt_save_area + 4) & ~7);
+	WARN_ON((unsigned long)frame & 7);
+
+	__put_user_error(IWMMXT_MAGIC0, &frame->magic0, err);
+	__put_user_error(IWMMXT_MAGIC1, &frame->magic1, err);
 
-again:
-	__put_user_error(IWMMXT_MAGIC0, iwmmxt_storage+0, err);
-	__put_user_error(IWMMXT_MAGIC1, iwmmxt_storage+1, err);
 	/*
 	 * iwmmxt_task_copy() doesn't check user permissions.
 	 * Let's do a dummy write on the upper boundary to ensure
 	 * access to user mem is OK all way up.
 	 */
-	__put_user_error(0, iwmmxt_storage+IWMMXT_STORAGE_SIZE/4-1, err);
-	if (!err) {
-		/* Let's make sure the user mapping won't disappear under us */
-		struct mm_struct *mm = current->mm;
-		unsigned long addr = (unsigned long)iwmmxt_storage;
-		spin_lock(&mm->page_table_lock);
-		if ( !page_present(mm, addr, 1) ||
-		     !page_present(mm, addr+IWMMXT_STORAGE_SIZE-1, 1) ) {
-			/* our user area has gone before grabbing the lock */
-			spin_unlock(&mm->page_table_lock);
-			goto again;
-		}
-		iwmmxt_task_copy(current_thread_info(), iwmmxt_storage+2);
-		spin_unlock(&mm->page_table_lock);
-		return 0;
-	}
+	err |= copy_locked(&frame->storage, current_thread_info(),
+			   sizeof(frame->storage), 1, iwmmxt_task_copy);
 	return err;
 }
 
-static int
-restore_iwmmxt_context(void *iwmmxt_save_area)
+static int restore_iwmmxt_context(struct iwmmxt_sigframe *frame)
 {
+	unsigned long magic0, magic1;
 	int err = 0;
-	long *iwmmxt_storage, magic0, magic1, dummy;
 
 	/* the iWMMXt context is 64 bit aligned */
-	iwmmxt_storage = (long *)(((long)iwmmxt_save_area + 4) & ~7);
+	WARN_ON((unsigned long)frame & 7);
 
 	/*
 	 * Validate iWMMXt context signature.
@@ -215,32 +220,51 @@ restore_iwmmxt_context(void *iwmmxt_save_area)
 	 * Let's do a dummy write on the upper boundary to ensure
 	 * access to user mem is OK all way up.
 	 */
-again:
-	__get_user_error(magic0, iwmmxt_storage+0, err);
-	__get_user_error(magic1, iwmmxt_storage+1, err);
-	if (!err && magic0 == IWMMXT_MAGIC0 && magic1 == IWMMXT_MAGIC1 &&
-	    !__get_user(dummy, iwmmxt_storage+IWMMXT_STORAGE_SIZE/4-1)) {
-		/* Let's make sure the user mapping won't disappear under us */
-		struct mm_struct *mm = current->mm;
-		unsigned long addr = (unsigned long)iwmmxt_storage;
-		spin_lock(&mm->page_table_lock);
-		if ( !page_present(mm, addr, 0) ||
-		     !page_present(mm, addr+IWMMXT_STORAGE_SIZE-1, 0) ) {
-			/* our user area has gone before grabbing the lock */
-			spin_unlock(&mm->page_table_lock);
-			goto again;
-		}
-		iwmmxt_task_restore(current_thread_info(), iwmmxt_storage+2);
-		spin_unlock(&mm->page_table_lock);
-		return 0;
-	}
-	return -1;
+	__get_user_error(magic0, &frame->magic0, err);
+	__get_user_error(magic1, &frame->magic1, err);
+	if (!err && magic0 == IWMMXT_MAGIC0 && magic1 == IWMMXT_MAGIC1)
+		err = copy_locked(&frame->storage, current_thread_info(),
+				  sizeof(frame->storage), 0, iwmmxt_task_restore);
+	return err;
 }
 
 #endif
 
+/*
+ * Auxiliary signal frame.  This saves stuff like FP state.
+ * The layout of this structure is not part of the user ABI.
+ */
+struct aux_sigframe {
+#ifdef CONFIG_IWMMXT
+	struct iwmmxt_sigframe	iwmmxt;
+#endif
+#ifdef CONFIG_VFP
+	union vfp_state		vfp;
+#endif
+};
+
+/*
+ * Do a signal return; undo the signal stack.  These are aligned to 64-bit.
+ */
+struct sigframe {
+	struct sigcontext sc;
+	unsigned long extramask[_NSIG_WORDS-1];
+	unsigned long retcode;
+	struct aux_sigframe aux __attribute__((aligned(8)));
+};
+
+struct rt_sigframe {
+	struct siginfo __user *pinfo;
+	void __user *puc;
+	struct siginfo info;
+	struct ucontext uc;
+	unsigned long retcode;
+	struct aux_sigframe aux __attribute__((aligned(8)));
+};
+
 static int
-restore_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc)
+restore_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc,
+		   struct aux_sigframe __user *aux)
 {
 	int err = 0;
 
@@ -264,6 +288,15 @@ restore_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc)
 
 	err |= !valid_user_regs(regs);
 
+#ifdef CONFIG_IWMMXT
+	if (err == 0 && test_thread_flag(TIF_USING_IWMMXT))
+		err |= restore_iwmmxt_context(&aux->iwmmxt);
+#endif
+#ifdef CONFIG_VFP
+//	if (err == 0)
+//		err |= vfp_restore_state(&aux->vfp);
+#endif
+
 	return err;
 }
 
@@ -299,13 +332,8 @@ asmlinkage int sys_sigreturn(struct pt_regs *regs)
 	recalc_sigpending();
 	spin_unlock_irq(&current->sighand->siglock);
 
-	if (restore_sigcontext(regs, &frame->sc))
-		goto badframe;
-
-#ifdef CONFIG_IWMMXT
-	if (test_thread_flag(TIF_USING_IWMMXT) && restore_iwmmxt_context(frame+1))
+	if (restore_sigcontext(regs, &frame->sc, &frame->aux))
 		goto badframe;
-#endif
 
 	/* Send SIGTRAP if we're single-stepping */
 	if (current->ptrace & PT_SINGLESTEP) {
@@ -349,17 +377,12 @@ asmlinkage int sys_rt_sigreturn(struct pt_regs *regs)
 	recalc_sigpending();
 	spin_unlock_irq(&current->sighand->siglock);
 
-	if (restore_sigcontext(regs, &frame->uc.uc_mcontext))
+	if (restore_sigcontext(regs, &frame->uc.uc_mcontext, &frame->aux))
 		goto badframe;
 
 	if (do_sigaltstack(&frame->uc.uc_stack, NULL, regs->ARM_sp) == -EFAULT)
 		goto badframe;
 
-#ifdef CONFIG_IWMMXT
-	if (test_thread_flag(TIF_USING_IWMMXT) && restore_iwmmxt_context(frame+1))
-		goto badframe;
-#endif
-
 	/* Send SIGTRAP if we're single-stepping */
 	if (current->ptrace & PT_SINGLESTEP) {
 		ptrace_cancel_bpt(current);
@@ -374,7 +397,7 @@ asmlinkage int sys_rt_sigreturn(struct pt_regs *regs)
 }
 
 static int
-setup_sigcontext(struct sigcontext __user *sc, /*struct _fpstate *fpstate,*/
+setup_sigcontext(struct sigcontext __user *sc, struct aux_sigframe __user *aux,
 		 struct pt_regs *regs, unsigned long mask)
 {
 	int err = 0;
@@ -402,6 +425,15 @@ setup_sigcontext(struct sigcontext __user *sc, /*struct _fpstate *fpstate,*/
 	__put_user_error(current->thread.address, &sc->fault_address, err);
 	__put_user_error(mask, &sc->oldmask, err);
 
+#ifdef CONFIG_IWMMXT
+	if (err == 0 && test_thread_flag(TIF_USING_IWMMXT))
+		err |= preserve_iwmmxt_context(&aux->iwmmxt);
+#endif
+#ifdef CONFIG_VFP
+//	if (err == 0)
+//		err |= vfp_save_state(&aux->vfp);
+#endif
+
 	return err;
 }
 
@@ -411,11 +443,6 @@ get_sigframe(struct k_sigaction *ka, struct pt_regs *regs, int framesize)
 	unsigned long sp = regs->ARM_sp;
 	void __user *frame;
 
-#ifdef CONFIG_IWMMXT
-	if (test_thread_flag(TIF_USING_IWMMXT))
-		framesize = (framesize + 4 + IWMMXT_STORAGE_SIZE) & ~7;
-#endif
-
 	/*
 	 * This is the X/Open sanctioned signal stack switching.
 	 */
@@ -505,18 +532,13 @@ setup_frame(int usig, struct k_sigaction *ka, sigset_t *set, struct pt_regs *reg
 	if (!frame)
 		return 1;
 
-	err |= setup_sigcontext(&frame->sc, /*&frame->fpstate,*/ regs, set->sig[0]);
+	err |= setup_sigcontext(&frame->sc, &frame->aux, regs, set->sig[0]);
 
 	if (_NSIG_WORDS > 1) {
 		err |= __copy_to_user(frame->extramask, &set->sig[1],
 				      sizeof(frame->extramask));
 	}
 
-#ifdef CONFIG_IWMMXT
-	if (test_thread_flag(TIF_USING_IWMMXT))
-		err |= preserve_iwmmxt_context(frame+1);
-#endif
-
 	if (err == 0)
 		err = setup_return(regs, ka, &frame->retcode, frame, usig);
 
@@ -547,15 +569,10 @@ setup_rt_frame(int usig, struct k_sigaction *ka, siginfo_t *info,
 	stack.ss_size = current->sas_ss_size;
 	err |= __copy_to_user(&frame->uc.uc_stack, &stack, sizeof(stack));
 
-	err |= setup_sigcontext(&frame->uc.uc_mcontext, /*&frame->fpstate,*/
+	err |= setup_sigcontext(&frame->uc.uc_mcontext, &frame->aux,
 				regs, set->sig[0]);
 	err |= __copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set));
 
-#ifdef CONFIG_IWMMXT
-	if (test_thread_flag(TIF_USING_IWMMXT))
-		err |= preserve_iwmmxt_context(frame+1);
-#endif
-
 	if (err == 0)
 		err = setup_return(regs, ka, &frame->retcode, frame, usig);
 

arch/arm/kernel/time.c

@@ -40,6 +40,11 @@ u64 jiffies_64 = INITIAL_JIFFIES;
 
 EXPORT_SYMBOL(jiffies_64);
 
+/*
+ * Our system timer.
+ */
+struct sys_timer *system_timer;
+
 extern unsigned long wall_jiffies;
 
 /* this needs a better home */
@@ -77,12 +82,6 @@ static unsigned long dummy_gettimeoffset(void)
 	return 0;
 }
 
-/*
- * hook for getting the time offset.  Note that it is
- * always called with interrupts disabled.
- */
-unsigned long (*gettimeoffset)(void) = dummy_gettimeoffset;
-
 /*
  * Scheduler clock - returns current time in nanosec units.
  * This is the default implementation.  Sub-architecture
@@ -247,7 +246,7 @@ void do_gettimeofday(struct timeval *tv)
 
 	do {
 		seq = read_seqbegin_irqsave(&xtime_lock, flags);
-		usec = gettimeoffset();
+		usec = system_timer->offset();
 
 		lost = jiffies - wall_jiffies;
 		if (lost)
@@ -284,7 +283,7 @@ int do_settimeofday(struct timespec *tv)
 	 * wall time.  Discover what correction gettimeofday() would have
 	 * done, and then undo it!
 	 */
-	nsec -= gettimeoffset() * NSEC_PER_USEC;
+	nsec -= system_timer->offset() * NSEC_PER_USEC;
 	nsec -= (jiffies - wall_jiffies) * TICK_NSEC;
 
 	wtm_sec  = wall_to_monotonic.tv_sec + (xtime.tv_sec - sec);
@@ -337,6 +336,9 @@ void restore_time_delta(struct timespec *delta, struct timespec *rtc)
 }
 EXPORT_SYMBOL(restore_time_delta);
 
+/*
+ * Kernel system timer support.
+ */
 void timer_tick(struct pt_regs *regs)
 {
 	profile_tick(CPU_PROFILING, regs);
@@ -348,10 +350,53 @@ void timer_tick(struct pt_regs *regs)
 #endif
 }
 
-void (*init_arch_time)(void);
+#ifdef CONFIG_PM
+static int timer_suspend(struct sys_device *dev, u32 state)
+{
+	struct sys_timer *timer = container_of(dev, struct sys_timer, dev);
+
+	if (timer->suspend != NULL)
+		timer->suspend();
+
+	return 0;
+}
+
+static int timer_resume(struct sys_device *dev)
+{
+	struct sys_timer *timer = container_of(dev, struct sys_timer, dev);
+
+	if (timer->resume != NULL)
+		timer->resume();
+
+	return 0;
+}
+#else
+#define timer_suspend NULL
+#define timer_resume NULL
+#endif
+
+static struct sysdev_class timer_sysclass = {
+	set_kset_name("timer"),
+	.suspend	= timer_suspend,
+	.resume		= timer_resume,
+};
+
+static int __init timer_init_sysfs(void)
+{
+	int ret = sysdev_class_register(&timer_sysclass);
+	if (ret == 0) {
+		system_timer->dev.cls = &timer_sysclass;
+		ret = sysdev_register(&system_timer->dev);
+	}
+	return ret;
+}
+
+device_initcall(timer_init_sysfs);
 
 void __init time_init(void)
 {
-	init_arch_time();
+	if (system_timer->offset == NULL)
+		system_timer->offset = dummy_gettimeoffset;
+	system_timer->init();
 }
 

arch/arm/lib/delay.S

@@ -16,15 +16,16 @@ LC0:		.word	loops_per_jiffy
 /*
  * 0 <= r0 <= 2000
  */
-ENTRY(udelay)
+ENTRY(__udelay)
 		mov	r2,     #0x6800
 		orr	r2, r2, #0x00db
-		mul	r1, r0, r2
+		mul	r0, r2, r0
+ENTRY(__const_udelay)				@ 0 <= r0 <= 0x01ffffff
 		ldr	r2, LC0
-		ldr	r2, [r2]
-		mov	r1, r1, lsr #11
-		mov	r2, r2, lsr #11
-		mul	r0, r1, r2
+		ldr	r2, [r2]		@ max = 0x0fffffff
+		mov	r0, r0, lsr #11		@ max = 0x00003fff
+		mov	r2, r2, lsr #11		@ max = 0x0003ffff
+		mul	r0, r2, r0		@ max = 2^32-1
 		movs	r0, r0, lsr #6
 		RETINSTR(moveq,pc,lr)
 

arch/arm/mach-clps711x/Makefile.boot

+# The standard locations for stuff on CLPS711x type processors
+   zreladdr-y				:= 0xc0028000 
+params_phys-y				:= 0xc0000100
+# Should probably have some agreement on these...
+initrd_phys-$(CONFIG_ARCH_P720T)	:= 0xc0400000
+initrd_phys-$(CONFIG_ARCH_CDB89712)	:= 0x00700000
+

arch/arm/mach-clps711x/autcpu12.c

@@ -35,9 +35,7 @@
 #include <asm/mach/map.h>
 #include <asm/arch/autcpu12.h>
 
-extern void clps711x_map_io(void);
-extern void clps711x_init_irq(void);
-extern void clps711x_init_time(void);
+#include "common.h"
 
 /*
  * The on-chip registers are given a size of 1MB so that a section can
@@ -66,6 +64,6 @@ MACHINE_START(AUTCPU12, "autronix autcpu12")
 	BOOT_PARAMS(0xc0020000)
 	MAPIO(autcpu12_map_io)
 	INITIRQ(clps711x_init_irq)
-	INITTIME(clps711x_init_time)
+	.timer		= &clps711x_timer,
 MACHINE_END
 

arch/arm/mach-clps711x/cdb89712.c

@@ -32,9 +32,7 @@
 #include <asm/mach/arch.h>
 #include <asm/mach/map.h>
 
-extern void clps711x_init_irq(void);
-extern void clps711x_map_io(void);
-extern void clps711x_init_time(void);
+#include "common.h"
 
 /*
  * Map the CS89712 Ethernet port.  That should be moved to the
@@ -56,13 +54,5 @@ MACHINE_START(CDB89712, "Cirrus-CDB89712")
 	BOOT_PARAMS(0xc0000100)
 	MAPIO(cdb89712_map_io)
 	INITIRQ(clps711x_init_irq)
-	INITTIME(clps711x_init_time)
+	.timer		= &clps711x_timer,
 MACHINE_END
-
-static int cdb89712_hw_init(void)
-{
-	return 0;
-}
-
-__initcall(cdb89712_hw_init);
-

arch/arm/mach-clps711x/ceiva.c

@@ -34,8 +34,7 @@
 
 #include <asm/mach/map.h>
 
-extern void clps711x_init_irq(void);
-extern void clps711x_init_time(void);
+#include "common.h"
 
 static struct map_desc ceiva_io_desc[] __initdata = {
  /* virtual, physical, length, type */
@@ -59,5 +58,5 @@ MACHINE_START(CEIVA, "CEIVA/Polaroid Photo MAX Digital Picture Frame")
 	BOOT_PARAMS(0xc0000100)
 	MAPIO(ceiva_map_io)
 	INITIRQ(clps711x_init_irq)
-	INITTIME(clps711x_init_time)
+	.timer		= &clps711x_timer,
 MACHINE_END

arch/arm/mach-clps711x/clep7312.c

@@ -23,9 +23,7 @@
 #include <asm/mach-types.h>
 #include <asm/mach/arch.h>
 
-extern void clps711x_init_irq(void);
-extern void clps711x_map_io(void); 
-extern void clps711x_init_time(void);
+#include "common.h"
 
 static void __init
 fixup_clep7312(struct machine_desc *desc, struct tag *tags,
@@ -45,6 +43,6 @@ MACHINE_START(CLEP7212, "Cirrus Logic 7212/7312")
 	FIXUP(fixup_clep7312)
 	MAPIO(clps711x_map_io)
 	INITIRQ(clps711x_init_irq)
-	INITTIME(clps711x_init_time)
+	.timer		= &clps711x_timer,
 MACHINE_END
 

arch/arm/mach-clps711x/common.h

+/*
+ * linux/arch/arm/mach-clps711x/common.h
+ *
+ * Common bits.
+ */
+
+struct sys_timer;
+
+extern void clps711x_map_io(void);
+extern void clps711x_init_irq(void);
+extern struct sys_timer clps711x_timer;

arch/arm/mach-clps711x/edb7211-arch.c

@@ -25,9 +25,9 @@
 #include <asm/mach-types.h>
 #include <asm/mach/arch.h>
 
-extern void clps711x_init_irq(void);
+#include "common.h"
+
 extern void edb7211_map_io(void);
-extern void clps711x_init_time(void);
 
 static void __init
 fixup_edb7211(struct machine_desc *desc, struct tag *tags,
@@ -57,5 +57,5 @@ MACHINE_START(EDB7211, "CL-EDB7211 (EP7211 eval board)")
 	FIXUP(fixup_edb7211)
 	MAPIO(edb7211_map_io)
 	INITIRQ(clps711x_init_irq)
-	INITTIME(clps711x_init_time)
+	.timer		= &clps711x_timer,
 MACHINE_END

arch/arm/mach-clps711x/fortunet.c

@@ -31,9 +31,7 @@
 
 #include <asm/mach/arch.h>
 
-extern void clps711x_map_io(void);
-extern void clps711x_init_irq(void);
-extern void clps711x_init_time(void);
+#include "common.h"
 
 struct meminfo memmap = {
 	.nr_banks	= 1,
@@ -83,5 +81,5 @@ MACHINE_START(FORTUNET, "ARM-FortuNet")
 	FIXUP(fortunet_fixup)
 	MAPIO(clps711x_map_io)
 	INITIRQ(clps711x_init_irq)
-	INITTIME(clps711x_init_time)
+	.timer		= &clps711x_timer,
 MACHINE_END

arch/arm/mach-clps711x/p720t.c

@@ -34,9 +34,7 @@
 #include <asm/mach/map.h>
 #include <asm/arch/syspld.h>
 
-extern void clps711x_init_irq(void);
-extern void clps711x_map_io(void);
-extern void clps711x_init_time(void);
+#include "common.h"
 
 /*
  * Map the P720T system PLD.  It occupies two address spaces:
@@ -87,7 +85,7 @@ MACHINE_START(P720T, "ARM-Prospector720T")
 	FIXUP(fixup_p720t)
 	MAPIO(p720t_map_io)
 	INITIRQ(clps711x_init_irq)
-	INITTIME(clps711x_init_time)
+	.timer		= &clps711x_timer,
 MACHINE_END
 
 static int p720t_hw_init(void)

arch/arm/mach-clps711x/time.c

@@ -59,7 +59,7 @@ static struct irqaction clps711x_timer_irq = {
 	.handler	= p720t_timer_interrupt
 };
 
-void __init clps711x_init_time(void)
+static void __init clps711x_timer_init(void)
 {
 	struct timespec tv;
 	unsigned int syscon;
@@ -71,9 +71,13 @@ void __init clps711x_init_time(void)
 	clps_writel(LATCH-1, TC2D); /* 512kHz / 100Hz - 1 */
 
 	setup_irq(IRQ_TC2OI, &clps711x_timer_irq);
-	gettimeoffset = clps711x_gettimeoffset;
 
 	tv.tv_nsec = 0;
 	tv.tv_sec = clps_readl(RTCDR);
 	do_settimeofday(&tv);
 }
+
+struct sys_timer clps711x_timer = {
+	.init		= clps711x_timer_init,
+	.offset		= clps711x_gettimeoffset,
+};

arch/arm/mach-clps7500/Makefile.boot

+   zreladdr-y	:= 0x10008000
+

arch/arm/mach-clps7500/core.c

@@ -267,6 +267,7 @@ static void __init clps7500_map_io(void)
 }
 
 extern void ioctime_init(void);
+extern unsigned long ioc_timer_gettimeoffset(void);
 
 static irqreturn_t
 clps7500_timer_interrupt(int irq, void *dev_id, struct pt_regs *regs)
@@ -295,18 +296,23 @@ static struct irqaction clps7500_timer_irq = {
 /*
  * Set up timer interrupt.
  */
-void __init clps7500_init_time(void)
+static void __init clps7500_timer_init(void)
 {
 	ioctime_init();
 
 	setup_irq(IRQ_TIMER, &clps7500_timer_irq);
 }
 
+static struct clps7500_timer = {
+	.init		= clps7500_timer_init,
+	.offset		= ioc_timer_gettimeoffset,
+};
+
 MACHINE_START(CLPS7500, "CL-PS7500")
 	MAINTAINER("Philip Blundell")
 	BOOT_MEM(0x10000000, 0x03000000, 0xe0000000)
 	MAPIO(clps7500_map_io)
 	INITIRQ(clps7500_init_irq)
-	INITTIME(clps7500_init_time)
+	.timer		= &clps7500_timer,
 MACHINE_END
 

arch/arm/mach-ebsa110/Makefile.boot

+   zreladdr-y	:= 0x00008000
+params_phys-y	:= 0x00000400
+initrd_phys-y	:= 0x00800000
+

arch/arm/mach-ebsa110/core.c

@@ -175,7 +175,7 @@ static struct irqaction ebsa110_timer_irq = {
 /*
  * Set up timer interrupt.
  */
-static void __init ebsa110_init_time(void)
+static void __init ebsa110_timer_init(void)
 {
 	/*
 	 * Timer 1, mode 2, LSB/MSB
@@ -184,11 +184,14 @@ static void __init ebsa110_init_time(void)
 	__raw_writeb(COUNT & 0xff, PIT_T1);
 	__raw_writeb(COUNT >> 8, PIT_T1);
 
-	gettimeoffset = ebsa110_gettimeoffset;
-
 	setup_irq(IRQ_EBSA110_TIMER0, &ebsa110_timer_irq);
 }
 
+static struct sys_timer ebsa110_timer = {
+	.init		= ebsa110_timer_init,
+	.offset		= ebsa110_gettimeoffset,
+};
+
 MACHINE_START(EBSA110, "EBSA110")
 	MAINTAINER("Russell King")
 	BOOT_MEM(0x00000000, 0xe0000000, 0xe0000000)
@@ -198,5 +201,5 @@ MACHINE_START(EBSA110, "EBSA110")
 	SOFT_REBOOT
 	MAPIO(ebsa110_map_io)
 	INITIRQ(ebsa110_init_irq)
-	INITTIME(ebsa110_init_time)
+	.timer		= &ebsa110_timer,
 MACHINE_END

arch/arm/mach-epxa10db/Makefile.boot

+   zreladdr-y	:= 0x00008000
+

arch/arm/mach-epxa10db/arch.c

@@ -29,13 +29,13 @@
 
 extern void epxa10db_map_io(void);
 extern void epxa10db_init_irq(void);
-extern void epxa10db_init_time(void);
+extern struct sys_timer epxa10db_timer;
 
 MACHINE_START(CAMELOT, "Altera Epxa10db")
 	MAINTAINER("Altera Corporation")
 	BOOT_MEM(0x00000000, 0x7fffc000, 0xffffc000)
 	MAPIO(epxa10db_map_io)
 	INITIRQ(epxa10db_init_irq)
-	INITTIME(epxa10db_init_time)
+	.timer		= &epxa10db_timer,
 MACHINE_END
 

arch/arm/mach-epxa10db/time.c

@@ -61,7 +61,7 @@ static struct irqaction epxa10db_timer_irq = {
 /*
  * Set up timer interrupt, and return the current time in seconds.
  */
-void __init epxa10db_init_time(void)
+static void __init epxa10db_timer_init(void)
 {
 	/* Start the timer */
 	*TIMER0_LIMIT(IO_ADDRESS(EXC_TIMER00_BASE))=(unsigned int)(EXC_AHB2_CLK_FREQUENCY/200);
@@ -71,3 +71,6 @@ void __init epxa10db_init_time(void)
 	setup_irq(IRQ_TIMER0, &epxa10db_timer_irq);
 }
 
+struct sys_timer epxa10db_timer = {
+	.init		= epxa10db_timer_init,
+};

arch/arm/mach-footbridge/Kconfig

@@ -4,6 +4,7 @@ menu "Footbridge Implementations"
 
 config ARCH_CATS
 	bool "CATS"
+	select FOOTBRIDGE_HOST
 	help
 	  Say Y here if you intend to run this kernel on the CATS.
 
@@ -11,6 +12,7 @@ config ARCH_CATS
 
 config ARCH_PERSONAL_SERVER
 	bool "Compaq Personal Server"
+	select FOOTBRIDGE_HOST
 	---help---
 	  Say Y here if you intend to run this kernel on the Compaq
 	  Personal Server.
@@ -28,6 +30,8 @@ config ARCH_PERSONAL_SERVER
 
 config ARCH_EBSA285_ADDIN
 	bool "EBSA285 (addin mode)"
+	select ARCH_EBSA285
+	select FOOTBRIDGE_ADDIN
 	help
 	  Say Y here if you intend to run this kernel on the EBSA285 card
 	  in addin mode.
@@ -36,6 +40,8 @@ config ARCH_EBSA285_ADDIN
 
 config ARCH_EBSA285_HOST
 	bool "EBSA285 (host mode)"
+	select ARCH_EBSA285
+	select FOOTBRIDGE_HOST
 	help
 	  Say Y here if you intend to run this kernel on the EBSA285 card
 	  in host ("central function") mode.
@@ -44,6 +50,7 @@ config ARCH_EBSA285_HOST
 
 config ARCH_NETWINDER
 	bool "NetWinder"
+	select FOOTBRIDGE_HOST
 	help
 	  Say Y here if you intend to run this kernel on the Rebel.COM
 	  NetWinder.  Information about this machine can be found at:
@@ -54,4 +61,20 @@ config ARCH_NETWINDER
 
 endmenu
 
+# Footbridge support
+config FOOTBRIDGE
+	bool
+
+# Footbridge in host mode
+config FOOTBRIDGE_HOST
+	bool
+
+# Footbridge in addin mode
+config FOOTBRIDGE_ADDIN
+	bool
+
+# EBSA285 board in either host or addin mode
+config ARCH_EBSA285
+	bool
+
 endif

arch/arm/mach-footbridge/Makefile

@@ -4,13 +4,13 @@
 
 # Object file lists.
 
-obj-y			:= arch.o dc21285.o dma.o irq.o isa-irq.o mm.o time.o
+obj-y			:= common.o dc21285.o dma.o isa-irq.o time.o
 obj-m			:=
 obj-n			:=
 obj-			:=
 
 pci-$(CONFIG_ARCH_CATS) += cats-pci.o
-pci-$(CONFIG_ARCH_EBSA285) += ebsa285-pci.o
+pci-$(CONFIG_ARCH_EBSA285_HOST) += ebsa285-pci.o
 pci-$(CONFIG_ARCH_NETWINDER) += netwinder-pci.o
 pci-$(CONFIG_ARCH_PERSONAL_SERVER) += personal-pci.o
 
@@ -18,8 +18,11 @@ leds-$(CONFIG_ARCH_CO285) += ebsa285-leds.o
 leds-$(CONFIG_ARCH_EBSA285) += ebsa285-leds.o
 leds-$(CONFIG_ARCH_NETWINDER) += netwinder-leds.o
 
-obj-$(CONFIG_ARCH_CATS) += cats-hw.o
-obj-$(CONFIG_ARCH_NETWINDER) += netwinder-hw.o
+obj-$(CONFIG_ARCH_CATS) += cats-hw.o isa-timer.o
+obj-$(CONFIG_ARCH_CO285) += co285.o dc21285-timer.o
+obj-$(CONFIG_ARCH_EBSA285) += ebsa285.o dc21285-timer.o
+obj-$(CONFIG_ARCH_NETWINDER) += netwinder-hw.o isa-timer.o
+obj-$(CONFIG_ARCH_PERSONAL_SERVER) += personal.o dc21285-timer.o
 
 obj-$(CONFIG_PCI)	+=$(pci-y)
 obj-$(CONFIG_LEDS)	+=$(leds-y)

arch/arm/mach-footbridge/Makefile.boot

+   zreladdr-y	:= 0x00008000
+params_phys-y	:= 0x00000100
+initrd_phys-y	:= 0x00800000
+

arch/arm/mach-footbridge/arch.c

-/*
- * linux/arch/arm/mach-footbridge/arch.c
- *
- * Architecture specific fixups.  This is where any
- * parameters in the params struct are fixed up, or
- * any additional architecture specific information
- * is pulled from the params struct.
- */
-#include <linux/config.h>
-#include <linux/module.h>
-#include <linux/tty.h>
-#include <linux/delay.h>
-#include <linux/pm.h>
-#include <linux/init.h>
-
-#include <asm/hardware/dec21285.h>
-#include <asm/elf.h>
-#include <asm/setup.h>
-#include <asm/mach-types.h>
-
-#include <asm/mach/arch.h>
-
-extern void footbridge_map_io(void);
-extern void footbridge_init_irq(void);
-extern void footbridge_init_time(void);
-
-unsigned int mem_fclk_21285 = 50000000;
-
-EXPORT_SYMBOL(mem_fclk_21285);
-
-static int __init parse_tag_memclk(const struct tag *tag)
-{
-	mem_fclk_21285 = tag->u.memclk.fmemclk;
-	return 0;
-}
-
-__tagtable(ATAG_MEMCLK, parse_tag_memclk);
-
-#ifdef CONFIG_ARCH_EBSA285
-MACHINE_START(EBSA285, "EBSA285")
-	MAINTAINER("Russell King")
-	BOOT_MEM(0x00000000, DC21285_ARMCSR_BASE, 0xfe000000)
-	BOOT_PARAMS(0x00000100)
-	VIDEO(0x000a0000, 0x000bffff)
-	MAPIO(footbridge_map_io)
-	INITIRQ(footbridge_init_irq)
-	INITTIME(footbridge_init_time)
-MACHINE_END
-#endif
-
-#ifdef CONFIG_ARCH_NETWINDER
-/*
- * Older NeTTroms either do not provide a parameters
- * page, or they don't supply correct information in
- * the parameter page.
- */
-static void __init
-fixup_netwinder(struct machine_desc *desc, struct tag *tags,
-		char **cmdline, struct meminfo *mi)
-{
-#ifdef CONFIG_ISAPNP
-	extern int isapnp_disable;
-
-	/*
-	 * We must not use the kernels ISAPnP code
-	 * on the NetWinder - it will reset the settings
-	 * for the WaveArtist chip and render it inoperable.
-	 */
-	isapnp_disable = 1;
-#endif
-}
-
-MACHINE_START(NETWINDER, "Rebel-NetWinder")
-	MAINTAINER("Russell King/Rebel.com")
-	BOOT_MEM(0x00000000, DC21285_ARMCSR_BASE, 0xfe000000)
-	BOOT_PARAMS(0x00000100)
-	VIDEO(0x000a0000, 0x000bffff)
-	DISABLE_PARPORT(0)
-	DISABLE_PARPORT(2)
-	FIXUP(fixup_netwinder)
-	MAPIO(footbridge_map_io)
-	INITIRQ(footbridge_init_irq)
-	INITTIME(footbridge_init_time)
-MACHINE_END
-#endif
-
-#ifdef CONFIG_ARCH_CATS
-/*
- * CATS uses soft-reboot by default, since
- * hard reboots fail on early boards.
- */
-static void __init
-fixup_cats(struct machine_desc *desc, struct tag *tags,
-	   char **cmdline, struct meminfo *mi)
-{
-	ORIG_VIDEO_LINES  = 25;
-	ORIG_VIDEO_POINTS = 16;
-	ORIG_Y = 24;
-}
-
-MACHINE_START(CATS, "Chalice-CATS")
-	MAINTAINER("Philip Blundell")
-	BOOT_MEM(0x00000000, DC21285_ARMCSR_BASE, 0xfe000000)
-	BOOT_PARAMS(0x00000100)
-	SOFT_REBOOT
-	FIXUP(fixup_cats)
-	MAPIO(footbridge_map_io)
-	INITIRQ(footbridge_init_irq)
-	INITTIME(footbridge_init_time)
-MACHINE_END
-#endif
-
-#ifdef CONFIG_ARCH_CO285
-
-static void __init
-fixup_coebsa285(struct machine_desc *desc, struct tag *tags,
-		char **cmdline, struct meminfo *mi)
-{
-	extern unsigned long boot_memory_end;
-	extern char boot_command_line[];
-
-	mi->nr_banks      = 1;
-	mi->bank[0].start = PHYS_OFFSET;
-	mi->bank[0].size  = boot_memory_end;
-	mi->bank[0].node  = 0;
-
-	*cmdline = boot_command_line;
-}
-
-MACHINE_START(CO285, "co-EBSA285")
-	MAINTAINER("Mark van Doesburg")
-	BOOT_MEM(0x00000000, DC21285_ARMCSR_BASE, 0x7cf00000)
-	FIXUP(fixup_coebsa285)
-	MAPIO(footbridge_map_io)
-	INITIRQ(footbridge_init_irq)
-	INITTIME(footbridge_init_time)
-MACHINE_END
-#endif
-
-#ifdef CONFIG_ARCH_PERSONAL_SERVER
-MACHINE_START(PERSONAL_SERVER, "Compaq-PersonalServer")
-	MAINTAINER("Jamey Hicks / George France")
-	BOOT_MEM(0x00000000, DC21285_ARMCSR_BASE, 0xfe000000)
-	BOOT_PARAMS(0x00000100)
-	MAPIO(footbridge_map_io)
-	INITIRQ(footbridge_init_irq)
-	INITTIME(footbridge_init_time)
-MACHINE_END
-#endif

arch/arm/mach-footbridge/cats-hw.c

@@ -9,8 +9,14 @@
 #include <linux/kernel.h>
 #include <linux/init.h>
 
+#include <asm/hardware/dec21285.h>
 #include <asm/io.h>
 #include <asm/mach-types.h>
+#include <asm/setup.h>
+
+#include <asm/mach/arch.h>
+
+#include "common.h"
 
 #define CFG_PORT	0x370
 #define INDEX_PORT	(CFG_PORT)
@@ -62,3 +68,27 @@ static int __init cats_hw_init(void)
 }
 
 __initcall(cats_hw_init);
+
+/*
+ * CATS uses soft-reboot by default, since
+ * hard reboots fail on early boards.
+ */
+static void __init
+fixup_cats(struct machine_desc *desc, struct tag *tags,
+	   char **cmdline, struct meminfo *mi)
+{
+	ORIG_VIDEO_LINES  = 25;
+	ORIG_VIDEO_POINTS = 16;
+	ORIG_Y = 24;
+}
+
+MACHINE_START(CATS, "Chalice-CATS")
+	MAINTAINER("Philip Blundell")
+	BOOT_MEM(0x00000000, DC21285_ARMCSR_BASE, 0xfe000000)
+	BOOT_PARAMS(0x00000100)
+	SOFT_REBOOT
+	FIXUP(fixup_cats)
+	MAPIO(footbridge_map_io)
+	INITIRQ(footbridge_init_irq)
+	.timer		= &isa_timer,
+MACHINE_END

arch/arm/mach-footbridge/co285.c

+/*
+ * linux/arch/arm/mach-footbridge/co285.c
+ *
+ * CO285 machine fixup
+ */
+#include <linux/init.h>
+
+#include <asm/hardware/dec21285.h>
+#include <asm/mach-types.h>
+
+#include <asm/mach/arch.h>
+
+#include "common.h"
+
+static void __init
+fixup_coebsa285(struct machine_desc *desc, struct tag *tags,
+		char **cmdline, struct meminfo *mi)
+{
+	extern unsigned long boot_memory_end;
+	extern char boot_command_line[];
+
+	mi->nr_banks      = 1;
+	mi->bank[0].start = PHYS_OFFSET;
+	mi->bank[0].size  = boot_memory_end;
+	mi->bank[0].node  = 0;
+
+	*cmdline = boot_command_line;
+}
+
+MACHINE_START(CO285, "co-EBSA285")
+	MAINTAINER("Mark van Doesburg")
+	BOOT_MEM(0x00000000, DC21285_ARMCSR_BASE, 0x7cf00000)
+	FIXUP(fixup_coebsa285)
+	MAPIO(footbridge_map_io)
+	INITIRQ(footbridge_init_irq)
+	.timer		= &footbridge_timer,
+MACHINE_END
+

arch/arm/mach-footbridge/mm.c → arch/arm/mach-footbridge/common.c

 /*
- *  linux/arch/arm/mach-footbridge/mm.c
+ *  linux/arch/arm/mach-footbridge/common.c
  *
  *  Copyright (C) 1998-2000 Russell King, Dave Gilbert.
  *
  * 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.
- *
- *  Extra MM routines for the EBSA285 architecture
  */
 #include <linux/config.h>
-#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/types.h>
 #include <linux/mm.h>
+#include <linux/ioport.h>
+#include <linux/list.h>
 #include <linux/init.h>
  
 #include <asm/pgtable.h>
 #include <asm/page.h>
+#include <asm/irq.h>
 #include <asm/io.h>
-#include <asm/hardware/dec21285.h>
 #include <asm/mach-types.h>
+#include <asm/setup.h>
+#include <asm/hardware/dec21285.h>
 
+#include <asm/mach/irq.h>
 #include <asm/mach/map.h>
 
+#include "common.h"
+
+extern void __init isa_init_irq(unsigned int irq);
+
+unsigned int mem_fclk_21285 = 50000000;
+
+EXPORT_SYMBOL(mem_fclk_21285);
+
+static int __init parse_tag_memclk(const struct tag *tag)
+{
+	mem_fclk_21285 = tag->u.memclk.fmemclk;
+	return 0;
+}
+
+__tagtable(ATAG_MEMCLK, parse_tag_memclk);
+
+/*
+ * Footbridge IRQ translation table
+ *  Converts from our IRQ numbers into FootBridge masks
+ */
+static const int fb_irq_mask[] = {
+	IRQ_MASK_UART_RX,	/*  0 */
+	IRQ_MASK_UART_TX,	/*  1 */
+	IRQ_MASK_TIMER1,	/*  2 */
+	IRQ_MASK_TIMER2,	/*  3 */
+	IRQ_MASK_TIMER3,	/*  4 */
+	IRQ_MASK_IN0,		/*  5 */
+	IRQ_MASK_IN1,		/*  6 */
+	IRQ_MASK_IN2,		/*  7 */
+	IRQ_MASK_IN3,		/*  8 */
+	IRQ_MASK_DOORBELLHOST,	/*  9 */
+	IRQ_MASK_DMA1,		/* 10 */
+	IRQ_MASK_DMA2,		/* 11 */
+	IRQ_MASK_PCI,		/* 12 */
+	IRQ_MASK_SDRAMPARITY,	/* 13 */
+	IRQ_MASK_I2OINPOST,	/* 14 */
+	IRQ_MASK_PCI_ABORT,	/* 15 */
+	IRQ_MASK_PCI_SERR,	/* 16 */
+	IRQ_MASK_DISCARD_TIMER,	/* 17 */
+	IRQ_MASK_PCI_DPERR,	/* 18 */
+	IRQ_MASK_PCI_PERR,	/* 19 */
+};
+
+static void fb_mask_irq(unsigned int irq)
+{
+	*CSR_IRQ_DISABLE = fb_irq_mask[_DC21285_INR(irq)];
+}
+
+static void fb_unmask_irq(unsigned int irq)
+{
+	*CSR_IRQ_ENABLE = fb_irq_mask[_DC21285_INR(irq)];
+}
+
+static struct irqchip fb_chip = {
+	.ack	= fb_mask_irq,
+	.mask	= fb_mask_irq,
+	.unmask = fb_unmask_irq,
+};
+
+static void __init __fb_init_irq(void)
+{
+	unsigned int irq;
+
+	/*
+	 * setup DC21285 IRQs
+	 */
+	*CSR_IRQ_DISABLE = -1;
+	*CSR_FIQ_DISABLE = -1;
+
+	for (irq = _DC21285_IRQ(0); irq < _DC21285_IRQ(20); irq++) {
+		set_irq_chip(irq, &fb_chip);
+		set_irq_handler(irq, do_level_IRQ);
+		set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
+	}
+}
+
+void __init footbridge_init_irq(void)
+{
+	__fb_init_irq();
+
+	if (!footbridge_cfn_mode())
+		return;
+
+	if (machine_is_ebsa285())
+		/* The following is dependent on which slot
+		 * you plug the Southbridge card into.  We
+		 * currently assume that you plug it into
+		 * the right-hand most slot.
+		 */
+		isa_init_irq(IRQ_PCI);
+
+	if (machine_is_cats())
+		isa_init_irq(IRQ_IN2);
+
+	if (machine_is_netwinder())
+		isa_init_irq(IRQ_IN3);
+}
+
 /*
  * Common mapping for all systems.  Note that the outbound write flush is
  * commented out since there is a "No Fix" problem with it.  Not mapping

arch/arm/mach-footbridge/common.h

+
+extern struct sys_timer footbridge_timer;
+extern struct sys_timer isa_timer;
+
+extern void isa_rtc_init(void);
+
+extern void footbridge_map_io(void);
+extern void footbridge_init_irq(void);
+

arch/arm/mach-footbridge/dc21285-timer.c

+/*
+ *  linux/arch/arm/mach-footbridge/dc21285-timer.c
+ *
+ *  Copyright (C) 1998 Russell King.
+ *  Copyright (C) 1998 Phil Blundell
+ */
+#include <linux/init.h>
+#include <linux/interrupt.h>
+
+#include <asm/irq.h>
+
+#include <asm/hardware/dec21285.h>
+#include <asm/mach/time.h>
+
+#include "common.h"
+
+/*
+ * Footbridge timer 1 support.
+ */
+static unsigned long timer1_latch;
+
+static unsigned long timer1_gettimeoffset (void)
+{
+	unsigned long value = timer1_latch - *CSR_TIMER1_VALUE;
+
+	return ((tick_nsec / 1000) * value) / timer1_latch;
+}
+
+static irqreturn_t
+timer1_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+{
+	*CSR_TIMER1_CLR = 0;
+
+	timer_tick(regs);
+
+	return IRQ_HANDLED;
+}
+
+static struct irqaction footbridge_timer_irq = {
+	.name		= "Timer1 timer tick",
+	.handler	= timer1_interrupt,
+	.flags		= SA_INTERRUPT,
+};
+
+/*
+ * Set up timer interrupt.
+ */
+static void __init footbridge_timer_init(void)
+{
+	isa_rtc_init();
+
+	timer1_latch = (mem_fclk_21285 + 8 * HZ) / (16 * HZ);
+
+	*CSR_TIMER1_CLR  = 0;
+	*CSR_TIMER1_LOAD = timer1_latch;
+	*CSR_TIMER1_CNTL = TIMER_CNTL_ENABLE | TIMER_CNTL_AUTORELOAD | TIMER_CNTL_DIV16;
+
+	setup_irq(IRQ_TIMER1, &footbridge_timer_irq);
+}
+
+struct sys_timer footbridge_timer = {
+	.init		= footbridge_timer_init,
+	.offset		= timer1_gettimeoffset,
+};

arch/arm/mach-footbridge/ebsa285.c

+/*
+ * linux/arch/arm/mach-footbridge/ebsa285.c
+ *
+ * EBSA285 machine fixup
+ */
+#include <linux/init.h>
+
+#include <asm/hardware/dec21285.h>
+#include <asm/mach-types.h>
+
+#include <asm/mach/arch.h>
+
+#include "common.h"
+
+MACHINE_START(EBSA285, "EBSA285")
+	MAINTAINER("Russell King")
+	BOOT_MEM(0x00000000, DC21285_ARMCSR_BASE, 0xfe000000)
+	BOOT_PARAMS(0x00000100)
+	VIDEO(0x000a0000, 0x000bffff)
+	MAPIO(footbridge_map_io)
+	INITIRQ(footbridge_init_irq)
+	.timer		= &footbridge_timer,
+MACHINE_END
+

arch/arm/mach-footbridge/irq.c

-/*
- *  linux/arch/arm/mach-footbridge/irq.c
- *
- *  Copyright (C) 1996-2000 Russell King
- *
- * 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.
- *
- *  Changelog:
- *   22-Aug-1998 RMK	Restructured IRQ routines
- *   03-Sep-1998 PJB	Merged CATS support
- *   20-Jan-1998 RMK	Started merge of EBSA286, CATS and NetWinder
- *   26-Jan-1999 PJB	Don't use IACK on CATS
- *   16-Mar-1999 RMK	Added autodetect of ISA PICs
- */
-#include <linux/ioport.h>
-#include <linux/list.h>
-#include <linux/init.h>
-
-#include <asm/mach/irq.h>
-
-#include <asm/hardware.h>
-#include <asm/hardware/dec21285.h>
-#include <asm/irq.h>
-#include <asm/io.h>
-#include <asm/mach-types.h>
-
-extern void __init isa_init_irq(unsigned int irq);
-
-/*
- * Footbridge IRQ translation table
- *  Converts from our IRQ numbers into FootBridge masks
- */
-static const int fb_irq_mask[] = {
-	IRQ_MASK_UART_RX,	/*  0 */
-	IRQ_MASK_UART_TX,	/*  1 */
-	IRQ_MASK_TIMER1,	/*  2 */
-	IRQ_MASK_TIMER2,	/*  3 */
-	IRQ_MASK_TIMER3,	/*  4 */
-	IRQ_MASK_IN0,		/*  5 */
-	IRQ_MASK_IN1,		/*  6 */
-	IRQ_MASK_IN2,		/*  7 */
-	IRQ_MASK_IN3,		/*  8 */
-	IRQ_MASK_DOORBELLHOST,	/*  9 */
-	IRQ_MASK_DMA1,		/* 10 */
-	IRQ_MASK_DMA2,		/* 11 */
-	IRQ_MASK_PCI,		/* 12 */
-	IRQ_MASK_SDRAMPARITY,	/* 13 */
-	IRQ_MASK_I2OINPOST,	/* 14 */
-	IRQ_MASK_PCI_ABORT,	/* 15 */
-	IRQ_MASK_PCI_SERR,	/* 16 */
-	IRQ_MASK_DISCARD_TIMER,	/* 17 */
-	IRQ_MASK_PCI_DPERR,	/* 18 */
-	IRQ_MASK_PCI_PERR,	/* 19 */
-};
-
-static void fb_mask_irq(unsigned int irq)
-{
-	*CSR_IRQ_DISABLE = fb_irq_mask[_DC21285_INR(irq)];
-}
-
-static void fb_unmask_irq(unsigned int irq)
-{
-	*CSR_IRQ_ENABLE = fb_irq_mask[_DC21285_INR(irq)];
-}
-
-static struct irqchip fb_chip = {
-	.ack	= fb_mask_irq,
-	.mask	= fb_mask_irq,
-	.unmask = fb_unmask_irq,
-};
-
-static void __init __fb_init_irq(void)
-{
-	unsigned int irq;
-
-	/*
-	 * setup DC21285 IRQs
-	 */
-	*CSR_IRQ_DISABLE = -1;
-	*CSR_FIQ_DISABLE = -1;
-
-	for (irq = _DC21285_IRQ(0); irq < _DC21285_IRQ(20); irq++) {
-		set_irq_chip(irq, &fb_chip);
-		set_irq_handler(irq, do_level_IRQ);
-		set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
-	}
-}
-
-void __init footbridge_init_irq(void)
-{
-	__fb_init_irq();
-
-	if (!footbridge_cfn_mode())
-		return;
-
-	if (machine_is_ebsa285())
-		/* The following is dependent on which slot
-		 * you plug the Southbridge card into.  We
-		 * currently assume that you plug it into
-		 * the right-hand most slot.
-		 */
-		isa_init_irq(IRQ_PCI);
-
-	if (machine_is_cats())
-		isa_init_irq(IRQ_IN2);
-
-	if (machine_is_netwinder())
-		isa_init_irq(IRQ_IN3);
-}

arch/arm/mach-footbridge/isa-timer.c

+/*
+ *  linux/arch/arm/mach-footbridge/isa-timer.c
+ *
+ *  Copyright (C) 1998 Russell King.
+ *  Copyright (C) 1998 Phil Blundell
+ */
+#include <linux/init.h>
+#include <linux/interrupt.h>
+
+#include <asm/io.h>
+#include <asm/irq.h>
+
+#include <asm/mach/time.h>
+
+#include "common.h"
+
+/*
+ * ISA timer tick support
+ */
+#define mSEC_10_from_14 ((14318180 + 100) / 200)
+
+static unsigned long isa_gettimeoffset(void)
+{
+	int count;
+
+	static int count_p = (mSEC_10_from_14/6);    /* for the first call after boot */
+	static unsigned long jiffies_p = 0;
+
+	/*
+	 * cache volatile jiffies temporarily; we have IRQs turned off. 
+	 */
+	unsigned long jiffies_t;
+
+	/* timer count may underflow right here */
+	outb_p(0x00, 0x43);	/* latch the count ASAP */
+
+	count = inb_p(0x40);	/* read the latched count */
+
+	/*
+	 * We do this guaranteed double memory access instead of a _p 
+	 * postfix in the previous port access. Wheee, hackady hack
+	 */
+ 	jiffies_t = jiffies;
+
+	count |= inb_p(0x40) << 8;
+
+	/* Detect timer underflows.  If we haven't had a timer tick since 
+	   the last time we were called, and time is apparently going
+	   backwards, the counter must have wrapped during this routine. */
+	if ((jiffies_t == jiffies_p) && (count > count_p))
+		count -= (mSEC_10_from_14/6);
+	else
+		jiffies_p = jiffies_t;
+
+	count_p = count;
+
+	count = (((mSEC_10_from_14/6)-1) - count) * (tick_nsec / 1000);
+	count = (count + (mSEC_10_from_14/6)/2) / (mSEC_10_from_14/6);
+
+	return count;
+}
+
+static irqreturn_t
+isa_timer_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+{
+	timer_tick(regs);
+
+	return IRQ_HANDLED;
+}
+
+static struct irqaction isa_timer_irq = {
+	.name		= "ISA timer tick",
+	.handler	= isa_timer_interrupt,
+	.flags		= SA_INTERRUPT,
+};
+
+static void __init isa_timer_init(void)
+{
+	isa_rtc_init();
+
+	/* enable PIT timer */
+	/* set for periodic (4) and LSB/MSB write (0x30) */
+	outb(0x34, 0x43);
+	outb((mSEC_10_from_14/6) & 0xFF, 0x40);
+	outb((mSEC_10_from_14/6) >> 8, 0x40);
+
+	setup_irq(IRQ_ISA_TIMER, &isa_timer_irq);
+}
+
+struct sys_timer isa_timer = {
+	.init		= isa_timer_init,
+	.offset		= isa_gettimeoffset,
+};

arch/arm/mach-footbridge/netwinder-hw.c

@@ -12,9 +12,15 @@
 #include <linux/delay.h>
 #include <linux/init.h>
 
+#include <asm/hardware/dec21285.h>
 #include <asm/io.h>
 #include <asm/leds.h>
 #include <asm/mach-types.h>
+#include <asm/setup.h>
+
+#include <asm/mach/arch.h>
+
+#include "common.h"
 
 #define IRDA_IO_BASE		0x180
 #define GP1_IO_BASE		0x338
@@ -618,3 +624,37 @@ static int __init nw_hw_init(void)
 }
 
 __initcall(nw_hw_init);
+
+/*
+ * Older NeTTroms either do not provide a parameters
+ * page, or they don't supply correct information in
+ * the parameter page.
+ */
+static void __init
+fixup_netwinder(struct machine_desc *desc, struct tag *tags,
+		char **cmdline, struct meminfo *mi)
+{
+#ifdef CONFIG_ISAPNP
+	extern int isapnp_disable;
+
+	/*
+	 * We must not use the kernels ISAPnP code
+	 * on the NetWinder - it will reset the settings
+	 * for the WaveArtist chip and render it inoperable.
+	 */
+	isapnp_disable = 1;
+#endif
+}
+
+MACHINE_START(NETWINDER, "Rebel-NetWinder")
+	MAINTAINER("Russell King/Rebel.com")
+	BOOT_MEM(0x00000000, DC21285_ARMCSR_BASE, 0xfe000000)
+	BOOT_PARAMS(0x00000100)
+	VIDEO(0x000a0000, 0x000bffff)
+	DISABLE_PARPORT(0)
+	DISABLE_PARPORT(2)
+	FIXUP(fixup_netwinder)
+	MAPIO(footbridge_map_io)
+	INITIRQ(footbridge_init_irq)
+	.timer		= &isa_timer,
+MACHINE_END

arch/arm/mach-footbridge/personal.c

+/*
+ * linux/arch/arm/mach-footbridge/personal.c
+ *
+ * Personal server (Skiff) machine fixup
+ */
+#include <linux/init.h>
+
+#include <asm/hardware/dec21285.h>
+#include <asm/mach-types.h>
+
+#include <asm/mach/arch.h>
+
+#include "common.h"
+
+MACHINE_START(PERSONAL_SERVER, "Compaq-PersonalServer")
+	MAINTAINER("Jamey Hicks / George France")
+	BOOT_MEM(0x00000000, DC21285_ARMCSR_BASE, 0xfe000000)
+	BOOT_PARAMS(0x00000100)
+	MAPIO(footbridge_map_io)
+	INITIRQ(footbridge_init_irq)
+	.timer		= &footbridge_timer,
+MACHINE_END
+

arch/arm/mach-footbridge/time.c

@@ -19,75 +19,18 @@
 
 #include <linux/timex.h>
 #include <linux/init.h>
-#include <linux/interrupt.h>
 #include <linux/sched.h>
 #include <linux/mc146818rtc.h>
 #include <linux/bcd.h>
 
-#include <asm/hardware/dec21285.h>
-
 #include <asm/hardware.h>
-#include <asm/irq.h>
-#include <asm/leds.h>
-#include <asm/mach-types.h>
 #include <asm/io.h>
-#include <asm/hardware/clps7111.h>
 
 #include <asm/mach/time.h>
+#include "common.h"
 
 static int rtc_base;
 
-#define mSEC_10_from_14 ((14318180 + 100) / 200)
-
-static unsigned long isa_gettimeoffset(void)
-{
-	int count;
-
-	static int count_p = (mSEC_10_from_14/6);    /* for the first call after boot */
-	static unsigned long jiffies_p = 0;
-
-	/*
-	 * cache volatile jiffies temporarily; we have IRQs turned off. 
-	 */
-	unsigned long jiffies_t;
-
-	/* timer count may underflow right here */
-	outb_p(0x00, 0x43);	/* latch the count ASAP */
-
-	count = inb_p(0x40);	/* read the latched count */
-
-	/*
-	 * We do this guaranteed double memory access instead of a _p 
-	 * postfix in the previous port access. Wheee, hackady hack
-	 */
- 	jiffies_t = jiffies;
-
-	count |= inb_p(0x40) << 8;
-
-	/* Detect timer underflows.  If we haven't had a timer tick since 
-	   the last time we were called, and time is apparently going
-	   backwards, the counter must have wrapped during this routine. */
-	if ((jiffies_t == jiffies_p) && (count > count_p))
-		count -= (mSEC_10_from_14/6);
-	else
-		jiffies_p = jiffies_t;
-
-	count_p = count;
-
-	count = (((mSEC_10_from_14/6)-1) - count) * (tick_nsec / 1000);
-	count = (count + (mSEC_10_from_14/6)/2) / (mSEC_10_from_14/6);
-
-	return count;
-}
-
-static irqreturn_t
-isa_timer_interrupt(int irq, void *dev_id, struct pt_regs *regs)
-{
-	timer_tick(regs);
-
-	return IRQ_HANDLED;
-}
-
 static unsigned long __init get_isa_cmos_time(void)
 {
 	unsigned int year, mon, day, hour, min, sec;
@@ -133,8 +76,7 @@ static unsigned long __init get_isa_cmos_time(void)
 	return mktime(year, mon, day, hour, min, sec);
 }
 
-static int
-set_isa_cmos_time(void)
+static int set_isa_cmos_time(void)
 {
 	int retval = 0;
 	int real_seconds, real_minutes, cmos_minutes;
@@ -186,34 +128,7 @@ set_isa_cmos_time(void)
 	return retval;
 }
 
-
-static unsigned long timer1_latch;
-
-static unsigned long timer1_gettimeoffset (void)
-{
-	unsigned long value = timer1_latch - *CSR_TIMER1_VALUE;
-
-	return ((tick_nsec / 1000) * value) / timer1_latch;
-}
-
-static irqreturn_t
-timer1_interrupt(int irq, void *dev_id, struct pt_regs *regs)
-{
-	*CSR_TIMER1_CLR = 0;
-
-	timer_tick(regs);
-
-	return IRQ_HANDLED;
-}
-
-static struct irqaction footbridge_timer_irq = {
-	.flags	= SA_INTERRUPT
-};
-
-/*
- * Set up timer interrupt.
- */
-void __init footbridge_init_time(void)
+void __init isa_rtc_init(void)
 {
 	if (machine_is_co285() ||
 	    machine_is_personal_server())
@@ -262,35 +177,4 @@ void __init footbridge_init_time(void)
 		} else
 			rtc_base = 0;
 	}
-
-	if (machine_is_ebsa285() ||
-	    machine_is_co285() ||
-	    machine_is_personal_server()) {
-		gettimeoffset = timer1_gettimeoffset;
-
-		timer1_latch = (mem_fclk_21285 + 8 * HZ) / (16 * HZ);
-
-		*CSR_TIMER1_CLR  = 0;
-		*CSR_TIMER1_LOAD = timer1_latch;
-		*CSR_TIMER1_CNTL = TIMER_CNTL_ENABLE | TIMER_CNTL_AUTORELOAD | TIMER_CNTL_DIV16;
-
-		footbridge_timer_irq.name = "Timer1 Timer Tick";
-		footbridge_timer_irq.handler = timer1_interrupt;
-		
-		setup_irq(IRQ_TIMER1, &footbridge_timer_irq);
-
-	} else {
-		/* enable PIT timer */
-		/* set for periodic (4) and LSB/MSB write (0x30) */
-		outb(0x34, 0x43);
-		outb((mSEC_10_from_14/6) & 0xFF, 0x40);
-		outb((mSEC_10_from_14/6) >> 8, 0x40);
-
-		gettimeoffset = isa_gettimeoffset;
-
-		footbridge_timer_irq.name = "ISA Timer Tick";
-		footbridge_timer_irq.handler = isa_timer_interrupt;
-		
-		setup_irq(IRQ_ISA_TIMER, &footbridge_timer_irq);
-	}
 }

arch/arm/mach-h720x/Makefile.boot

+   zreladdr-$(CONFIG_ARCH_H720X)	:= 0x40008000
+

arch/arm/mach-imx/Makefile.boot

+    zreladdr-$(CONFIG_ARCH_MX1ADS)	:= 0x08008000
+

arch/arm/mach-imx/generic.h

@@ -11,4 +11,6 @@
 
 extern void __init imx_map_io(void);
 extern void __init imx_init_irq(void);
-extern void __init imx_init_time(void);
+
+struct sys_timer;
+extern struct sys_timer imx_timer;

arch/arm/mach-imx/mx1ads.c

@@ -83,6 +83,6 @@ MACHINE_START(MX1ADS, "Motorola MX1ADS")
 	BOOT_PARAMS(0x08000100)
 	MAPIO(mx1ads_map_io)
 	INITIRQ(imx_init_irq)
-	INITTIME(imx_init_time)
+	.timer		= &imx_timer,
 	INIT_MACHINE(mx1ads_init)
 MACHINE_END

arch/arm/mach-imx/time.c

@@ -76,8 +76,8 @@ static struct irqaction imx_timer_irq = {
 /*
  * Set up timer interrupt, and return the current time in seconds.
  */
-void __init
-imx_init_time(void)
+static void __init
+imx_timer_init(void)
 {
 	/*
 	 * Initialise to a known state (all timers off, and timing reset)
@@ -91,5 +91,9 @@ imx_init_time(void)
 	 * Make irqs happen for the system timer
 	 */
 	setup_irq(TIM1_INT, &imx_timer_irq);
-	gettimeoffset = imx_gettimeoffset;
 }
+
+struct imx_timer = {
+	.init		= imx_timer_init,
+	.offset		= imx_gettimeoffset,
+};

arch/arm/mach-integrator/Makefile.boot

+   zreladdr-y	:= 0x00008000
+params_phys-y	:= 0x00000100
+initrd_phys-y	:= 0x00800000
+

arch/arm/mach-integrator/common.h

+extern void integrator_time_init(unsigned long, unsigned int);
+extern unsigned long integrator_gettimeoffset(void);

arch/arm/mach-integrator/core.c

@@ -24,6 +24,8 @@
 #include <asm/leds.h>
 #include <asm/mach/time.h>
 
+#include "common.h"
+
 static struct amba_device rtc_device = {
 	.dev		= {
 		.bus_id	= "mb:15",
@@ -163,15 +165,13 @@ typedef struct TimerStruct {
 	unsigned long TimerClear;
 } TimerStruct_t;
 
-extern unsigned long (*gettimeoffset)(void);
-
 static unsigned long timer_reload;
 
 /*
  * Returns number of ms since last clock interrupt.  Note that interrupts
  * will have been disabled by do_gettimeoffset()
  */
-static unsigned long integrator_gettimeoffset(void)
+unsigned long integrator_gettimeoffset(void)
 {
 	volatile TimerStruct_t *timer1 = (TimerStruct_t *)TIMER1_VA_BASE;
 	unsigned long ticks1, ticks2, status;
@@ -264,5 +264,4 @@ void __init integrator_time_init(unsigned long reload, unsigned int ctrl)
 	 * Make irqs happen for the system timer
 	 */
 	setup_irq(IRQ_TIMERINT1, &integrator_timer_irq);
-	gettimeoffset = integrator_gettimeoffset;
 }

arch/arm/mach-integrator/integrator_ap.c

@@ -40,7 +40,9 @@
 #include <asm/mach/flash.h>
 #include <asm/mach/irq.h>
 #include <asm/mach/map.h>
+#include <asm/mach/time.h>
 
+#include "common.h"
 
 /* 
  * All IO addresses are mapped onto VA 0xFFFx.xxxx, where x.xxxx
@@ -281,17 +283,22 @@ static void __init ap_init(void)
 	}
 }
 
-static void ap_time_init(void)
+static void __init ap_init_timer(void)
 {
 	integrator_time_init(1000000 * TICKS_PER_uSEC / HZ, 0);
 }
 
+static struct sys_timer ap_timer = {
+	.init		= ap_init_timer,
+	.offset		= integrator_gettimeoffset,
+};
+
 MACHINE_START(INTEGRATOR, "ARM-Integrator")
 	MAINTAINER("ARM Ltd/Deep Blue Solutions Ltd")
 	BOOT_MEM(0x00000000, 0x16000000, 0xf1600000)
 	BOOT_PARAMS(0x00000100)
 	MAPIO(ap_map_io)
 	INITIRQ(ap_init_irq)
-	INITTIME(ap_time_init)
+	.timer		= &ap_timer,
 	INIT_MACHINE(ap_init)
 MACHINE_END

arch/arm/mach-integrator/integrator_cp.c

@@ -35,7 +35,9 @@
 #include <asm/mach/irq.h>
 #include <asm/mach/mmc.h>
 #include <asm/mach/map.h>
+#include <asm/mach/time.h>
 
+#include "common.h"
 #include "clock.h"
 
 #define INTCP_PA_MMC_BASE		0x1c000000
@@ -496,17 +498,22 @@ static void __init intcp_init(void)
 
 #define TIMER_CTRL_IE	(1 << 5)			/* Interrupt Enable */
 
-static void __init intcp_init_time(void)
+static void __init intcp_timer_init(void)
 {
 	integrator_time_init(1000000 / HZ, TIMER_CTRL_IE);
 }
 
+static struct sys_timer cp_timer = {
+	.init		= intcp_timer_init,
+	.offset		= integrator_gettimeoffset,
+};
+
 MACHINE_START(CINTEGRATOR, "ARM-IntegratorCP")
 	MAINTAINER("ARM Ltd/Deep Blue Solutions Ltd")
 	BOOT_MEM(0x00000000, 0x16000000, 0xf1600000)
 	BOOT_PARAMS(0x00000100)
 	MAPIO(intcp_map_io)
 	INITIRQ(intcp_init_irq)
-	INITTIME(intcp_init_time)
+	.timer		= &cp_timer,
 	INIT_MACHINE(intcp_init)
 MACHINE_END

arch/arm/mach-iop3xx/Makefile.boot

+   zreladdr-y	:= 0xa0008000
+params_phys-y	:= 0xa0000100
+initrd_phys-y	:= 0xa0800000
+ifeq ($(CONFIG_ARCH_IOP331),y)
+   zreladdr-y	:= 0x00008000
+params_phys-y	:= 0x00000100
+initrd_phys-y	:= 0x00800000
+endif
+

arch/arm/mach-iop3xx/arch.c

-/*
- * linux/arch/arm/mach-iop3xx/arch.c
- *
- * Author: Nicolas Pitre <nico@cam.org>
- * Copyright (C) 2001 MontaVista Software, Inc.
- *
- * 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/config.h>
-#include <linux/init.h>
-#include <linux/major.h>
-#include <linux/fs.h>
-
-#include <asm/setup.h>
-#include <asm/system.h>
-#include <asm/memory.h>
-#include <asm/hardware.h>
-#include <asm/mach-types.h>
-#include <asm/mach/arch.h>
-
-#ifdef CONFIG_ARCH_IQ80331
-extern void iq80331_map_io(void);
-extern void iop331_init_irq(void);
-extern void iop331_init_time(void);
-#endif
-
-#ifdef CONFIG_ARCH_IQ80331
-static void __init
-fixup_iop331(struct machine_desc *desc, struct tag *tags,
-	      char **cmdline, struct meminfo *mi)
-{
-}
-#endif
-
-#if defined(CONFIG_ARCH_IQ80331)
-MACHINE_START(IQ80331, "Intel IQ80331")
-	MAINTAINER("Intel Corp.")
-	BOOT_MEM(PHYS_OFFSET, 0xfff01000, 0xfffff000) // virtual, physical
-//	BOOT_MEM(PHYS_OFFSET, IQ80331_UART0_VIRT, IQ80331_UART0_PHYS)
-	MAPIO(iq80331_map_io)
-	INITIRQ(iop331_init_irq)
-	INITTIME(iop331_init_time)
-	BOOT_PARAMS(0x0100)
-MACHINE_END
-#else
-#error No machine descriptor defined for this IOP3xx implementation
-#endif

arch/arm/mach-iop3xx/iop321-setup.c

@@ -23,13 +23,13 @@
 
 #ifdef CONFIG_ARCH_IQ80321
 extern void iq80321_map_io(void);
-extern void iop321_init_irq(void);
+extern struct sys_timer iop321_timer;
 extern void iop321_init_time(void);
 #endif
 
 #ifdef CONFIG_ARCH_IQ31244
 extern void iq31244_map_io(void);
-extern void iop321_init_irq(void);
+extern struct sys_timer iop321_timer;
 extern void iop321_init_time(void);
 #endif
 
@@ -46,7 +46,7 @@ MACHINE_START(IQ80321, "Intel IQ80321")
 	FIXUP(fixup_iop321)
 	MAPIO(iq80321_map_io)
 	INITIRQ(iop321_init_irq)
-	INITTIME(iop321_init_time)
+	.timer		= &iop331_timer,
     BOOT_PARAMS(0xa0000100)
 MACHINE_END
 #elif defined(CONFIG_ARCH_IQ31244)
@@ -55,7 +55,7 @@ MACHINE_END
     BOOT_MEM(PHYS_OFFSET, IQ31244_UART, IQ31244_UART)
     MAPIO(iq31244_map_io)
     INITIRQ(iop321_init_irq)
-	INITTIME(iop321_init_time)
+	.timer		= &iop331_timer,
     BOOT_PARAMS(0xa0000100)
 MACHINE_END
 #else

arch/arm/mach-iop3xx/iop321-time.c

@@ -110,14 +110,11 @@ static struct irqaction iop321_timer_irq = {
 	.flags		= SA_INTERRUPT
 };
 
-extern int setup_arm_irq(int, struct irqaction*);
-
-void __init iop321_init_time(void)
+static void __init iop321_timer_init(void)
 {
 	u32 timer_ctl;
 
 	iop321_latch = (CLOCK_TICK_RATE + HZ / 2) / HZ;
-	gettimeoffset = iop321_gettimeoffset;
 	setup_irq(IRQ_IOP321_TIMER0, &iop321_timer_irq);
 
 	timer_ctl = IOP321_TMR_EN | IOP321_TMR_PRIVILEGED | IOP321_TMR_RELOAD |
@@ -138,4 +135,7 @@ void __init iop321_init_time(void)
 #endif
 }
 
-
+struct sys_timer iop321_timer = {
+	.init		= &iop321_timer_init,
+	.offset		= iop321_gettimeoffset,
+};

arch/arm/mach-iop3xx/iop331-setup.c

@@ -81,7 +81,7 @@ void __init iop331_map_io(void)
 
 #ifdef CONFIG_ARCH_IQ80331
 extern void iop331_init_irq(void);
-extern void iop331_init_time(void);
+extern struct sys_timer iop331_timer;
 extern void iq80331_map_io(void);
 #endif
 
@@ -92,7 +92,7 @@ MACHINE_START(IQ80331, "Intel IQ80331")
     //BOOT_MEM(PHYS_OFFSET, IQ80331_UART0_VIRT, IQ80331_UART0_PHYS)
     MAPIO(iq80331_map_io)
     INITIRQ(iop331_init_irq)
-    INITTIME(iop331_init_time)
+    .timer		= &iop331_timer,
     BOOT_PARAMS(0x0100)
 MACHINE_END
 #else

arch/arm/mach-iop3xx/iop331-time.c

@@ -110,14 +110,11 @@ static struct irqaction iop331_timer_irq = {
 	.flags		= SA_INTERRUPT
 };
 
-extern int setup_arm_irq(int, struct irqaction*);
-
-void __init iop331_init_time(void)
+static void __init iop331_timer_init(void)
 {
 	u32 timer_ctl;
 
 	iop331_latch = (CLOCK_TICK_RATE + HZ / 2) / HZ;
-	gettimeoffset = iop331_gettimeoffset;
 	setup_irq(IRQ_IOP331_TIMER0, &iop331_timer_irq);
 
 	timer_ctl = IOP331_TMR_EN | IOP331_TMR_PRIVILEGED | IOP331_TMR_RELOAD |
@@ -138,4 +135,7 @@ void __init iop331_init_time(void)
 #endif
 }
 
-
+struct sys_timer iop331_timer = {
+	.init		= iop331_timer_init,
+	.offset		= iop331_gettimeoffset,
+};

arch/arm/mach-ixp2000/core.c

@@ -170,7 +170,7 @@ void __init ixp2000_map_io(void)
 static unsigned ticks_per_jiffy;
 static unsigned ticks_per_usec;
 
-static unsigned long ixp2000_gettimeoffset (void)
+unsigned long ixp2000_gettimeoffset (void)
 {
 	unsigned long elapsed;
 
@@ -198,8 +198,6 @@ static struct irqaction ixp2000_timer_irq = {
 
 void __init ixp2000_init_time(unsigned long tick_rate)
 {
-	gettimeoffset = ixp2000_gettimeoffset;
-
 	ixp2000_reg_write(IXP2000_T1_CLR, 0);
 	ixp2000_reg_write(IXP2000_T2_CLR, 0);
 

arch/arm/mach-ixp2000/enp2611.c

@@ -55,11 +55,16 @@
 /*************************************************************************
  * ENP-2611 timer tick configuration
  *************************************************************************/
-static void __init enp2611_init_time(void)
+static void __init enp2611_timer_init(void)
 {
 	ixp2000_init_time(50 * 1000 * 1000);
 }
 
+static struct enp2611_timer = {
+	.init		= enp2611_timer_init,
+	.offset		= ixp2000_gettimeoffset,
+};
+
 
 /*************************************************************************
  * ENP-2611 PCI
@@ -202,7 +207,7 @@ MACHINE_START(ENP2611, "Radisys ENP-2611 PCI network processor board")
 	BOOT_PARAMS(0x00000100)
 	MAPIO(ixp2000_map_io)
 	INITIRQ(ixp2000_init_irq)
-	INITTIME(enp2611_init_time)
+	.timer		= &enp2611_timer,
 	INIT_MACHINE(enp2611_init_machine)
 MACHINE_END
 #endif

arch/arm/mach-ixp2000/ixdp2400.c

@@ -48,7 +48,7 @@
 /*************************************************************************
  * IXDP2400 timer tick
  *************************************************************************/
-static void __init ixdp2400_init_time(void)
+static void __init ixdp2400_timer_init(void)
 {
 	int numerator, denominator;
 	int denom_array[] = {2, 4, 8, 16, 1, 2, 4, 8};
@@ -59,6 +59,11 @@ static void __init ixdp2400_init_time(void)
 	ixp2000_init_time(((3125000 * numerator) / (denominator)) / 2);
 }
 
+static struct timer ixdp2400_timer = {
+	.init		= ixdp2400_timer_init,
+	.offset		= ixp2000_gettimeoffset,
+};
+
 /*************************************************************************
  * IXDP2400 PCI
  *************************************************************************/
@@ -171,7 +176,7 @@ MACHINE_START(IXDP2400, "Intel IXDP2400 Development Platform")
 	BOOT_PARAMS(0x00000100)
 	MAPIO(ixdp2x00_map_io)
 	INITIRQ(ixdp2400_init_irq)
-	INITTIME(ixdp2400_init_time)
+	.timer		= &ixdp2400_timer,
 	INIT_MACHINE(ixdp2x00_init_machine)
 MACHINE_END
 

arch/arm/mach-ixp2000/ixdp2800.c

@@ -55,11 +55,16 @@ void ixdp2400_init_irq(void)
  * IXDP2800 timer tick
  *************************************************************************/
 
-static void __init ixdp2800_init_time(void)
+static void __init ixdp2800_timer_init(void)
 {
 	ixp2000_init_time(50000000);
 }
 
+static struct sys_timer ixdp2800_timer = {
+	.init		= ixdp2800_timer_init,
+	.offset		= ixp2000_gettimeoffset,
+};
+
 /*************************************************************************
  * IXDP2800 PCI
  *************************************************************************/
@@ -172,7 +177,7 @@ MACHINE_START(IXDP2800, "Intel IXDP2800 Development Platform")
 	BOOT_PARAMS(0x00000100)
 	MAPIO(ixdp2x00_map_io)
 	INITIRQ(ixdp2800_init_irq)
-	INITTIME(ixdp2800_init_time)
+	.timer		= &ixdp2800_timer,
 	INIT_MACHINE(ixdp2x00_init_machine)
 MACHINE_END
 

arch/arm/mach-ixp2000/ixdp2x01.c

@@ -193,7 +193,7 @@ static int __init ixdp2x01_clock_setup(char *str)
 
 __setup("ixdp2x01_clock=", ixdp2x01_clock_setup);
 
-static void __init ixdp2x01_init_time(void)
+static void __init ixdp2x01_timer_init(void)
 {
 	if (!ixdp2x01_clock)
 		ixdp2x01_clock = 50000000;
@@ -201,6 +201,11 @@ static void __init ixdp2x01_init_time(void)
 	ixp2000_init_time(ixdp2x01_clock);
 }
 
+static struct sys_timer ixdp2x01_timer = {
+	.init		= ixdp2x01_timer_init,
+	.offset		= ixp2000_gettimeoffset,
+};
+
 /*************************************************************************
  * IXDP2x01 PCI
  *************************************************************************/
@@ -361,7 +366,7 @@ MACHINE_START(IXDP2401, "Intel IXDP2401 Development Platform")
 	BOOT_PARAMS(0x00000100)
 	MAPIO(ixdp2x01_map_io)
 	INITIRQ(ixdp2x01_init_irq)
-	INITTIME(ixdp2x01_init_time)
+	.timer		= &ixdp2x01_timer,
 	INIT_MACHINE(ixdp2x01_init_machine)
 MACHINE_END
 #endif
@@ -373,7 +378,7 @@ MACHINE_START(IXDP2801, "Intel IXDP2801 Development Platform")
 	BOOT_PARAMS(0x00000100)
 	MAPIO(ixdp2x01_map_io)
 	INITIRQ(ixdp2x01_init_irq)
-	INITTIME(ixdp2x01_init_time)
+	.timer		= &ixdp2x01_timer,
 	INIT_MACHINE(ixdp2x01_init_machine)
 MACHINE_END
 #endif

arch/arm/mach-ixp4xx/Makefile.boot

+   zreladdr-y	:= 0x00008000
+params_phys-y	:= 0x00000100
+

arch/arm/mach-ixp4xx/common.c

@@ -241,10 +241,8 @@ static struct irqaction ixp4xx_timer_irq = {
 	.handler	= ixp4xx_timer_interrupt
 };
 
-void __init ixp4xx_init_time(void)
+static void __init ixp4xx_timer_init(void)
 {
-	gettimeoffset = ixp4xx_gettimeoffset;
-
 	/* Clear Pending Interrupt by writing '1' to it */
 	*IXP4XX_OSST = IXP4XX_OSST_TIMER_1_PEND;
 
@@ -259,4 +257,7 @@ void __init ixp4xx_init_time(void)
 	setup_irq(IRQ_IXP4XX_TIMER1, &ixp4xx_timer_irq);
 }
 
-
+struct ixp4xx_timer = {
+	.init		= ixp4xx_timer_init,
+	.offset		= ixp4xx_gettimeoffset,
+};

arch/arm/mach-ixp4xx/coyote-setup.c

@@ -88,7 +88,7 @@ MACHINE_START(ADI_COYOTE, "ADI Engineering IXP4XX Coyote Development Platform")
                 IXP4XX_PERIPHERAL_BASE_VIRT)
         MAPIO(coyote_map_io)
         INITIRQ(ixp4xx_init_irq)
-	INITTIME(ixp4xx_init_time)
+	.timer		= &ixp4xx_timer,
         BOOT_PARAMS(0x0100)
 	INIT_MACHINE(coyote_init)
 MACHINE_END

arch/arm/mach-ixp4xx/ixdp425-setup.c

@@ -117,7 +117,7 @@ MACHINE_START(IXDP425, "Intel IXDP425 Development Platform")
 		IXP4XX_PERIPHERAL_BASE_VIRT)
 	MAPIO(ixdp425_map_io)
 	INITIRQ(ixp4xx_init_irq)
-	INITTIME(ixp4xx_init_time)
+	.timer		= &ixp4xx_timer,
 	BOOT_PARAMS(0x0100)
 	INIT_MACHINE(ixdp425_init)
 MACHINE_END
@@ -128,7 +128,7 @@ MACHINE_START(IXCDP1100, "Intel IXCDP1100 Development Platform")
 		IXP4XX_PERIPHERAL_BASE_VIRT)
 	MAPIO(ixdp425_map_io)
 	INITIRQ(ixp4xx_init_irq)
-	INITTIME(ixp4xx_init_time)
+	.timer		= &ixp4xx_timer,
 	BOOT_PARAMS(0x0100)
 	INIT_MACHINE(ixdp425_init)
 MACHINE_END
@@ -146,7 +146,7 @@ MACHINE_START(AVILA, "Gateworks Avila Network Platform")
 		IXP4XX_PERIPHERAL_BASE_VIRT)
 	MAPIO(ixdp425_map_io)
 	INITIRQ(ixp4xx_init_irq)
-	INITTIME(ixp4xx_init_time)
+	.timer		= &ixp4xx_timer,
 	BOOT_PARAMS(0x0100)
 	INIT_MACHINE(ixdp425_init)
 MACHINE_END

arch/arm/mach-ixp4xx/prpmc1100-setup.c

@@ -88,7 +88,7 @@ MACHINE_START(PRPMC1100, "Motorola PrPMC1100")
                 IXP4XX_PERIPHERAL_BASE_VIRT)
         MAPIO(prpmc1100_map_io)
         INITIRQ(ixp4xx_init_irq)
-	INITTIME(ixp4xx_init_time)
+	.timer		= &ixp4xx_timer,
         BOOT_PARAMS(0x0100)
 	INIT_MACHINE(prpmc1100_init)
 MACHINE_END

arch/arm/mach-l7200/Makefile.boot

+   zreladdr-y	:= 0xf0008000
+

arch/arm/mach-lh7a40x/Makefile.boot

+   zreladdr-y	:= 0xc0008000
+params_phys-y	:= 0xc0000100
+initrd_phys-y	:= 0xc4000000
+

arch/arm/mach-lh7a40x/arch-kev7a400.c

@@ -11,6 +11,7 @@
 #include <linux/tty.h>
 #include <linux/init.h>
 #include <linux/device.h>
+#include <linux/interrupt.h>
 
 #include <asm/hardware.h>
 #include <asm/setup.h>
@@ -21,11 +22,9 @@
 #include <asm/mach/irq.h>
 #include <asm/mach/map.h>
 
-#include <linux/interrupt.h>
+#include "common.h"
 
       /* This function calls the board specific IRQ initialization function. */
-extern void lh7a400_init_irq (void);
-extern void lh7a40x_init_time (void);
 
 static struct map_desc kev7a400_io_desc[] __initdata = {
 	{ IO_VIRT,    IO_PHYS,    IO_SIZE,    MT_DEVICE },
@@ -109,5 +108,5 @@ MACHINE_START (KEV7A400, "Sharp KEV7a400")
 	BOOT_PARAMS (0xc0000100)
 	MAPIO (kev7a400_map_io)
 	INITIRQ (lh7a400_init_irq)
-	INITTIME (lh7a40x_init_time)
+	.timer		= &lh7a40x_timer,
 MACHINE_END

arch/arm/mach-lh7a40x/arch-lpd7a40x.c

@@ -11,6 +11,7 @@
 #include <linux/tty.h>
 #include <linux/init.h>
 #include <linux/device.h>
+#include <linux/interrupt.h>
 
 #include <asm/hardware.h>
 #include <asm/setup.h>
@@ -21,7 +22,7 @@
 #include <asm/mach/irq.h>
 #include <asm/mach/map.h>
 
-#include <linux/interrupt.h>
+#include "common.h"
 
 static struct resource smc91x_resources[] = {
 	[0] = {
@@ -261,16 +262,13 @@ lpd7a400_map_io(void)
 
 #ifdef CONFIG_MACH_LPD7A400
 
-extern void lh7a400_init_irq (void);
-extern void lh7a40x_init_time (void);
-
 MACHINE_START (LPD7A400, "Logic Product Development LPD7A400-10")
 	MAINTAINER ("Marc Singer")
 	BOOT_MEM (0xc0000000, 0x80000000, io_p2v (0x80000000))
 	BOOT_PARAMS (0xc0000100)
 	MAPIO (lpd7a400_map_io)
 	INITIRQ (lh7a400_init_irq)
-	INITTIME (lh7a40x_init_time)
+	.timer		= &lpd7a40x_timer,
 	INIT_MACHINE (lpd7a40x_init)
 MACHINE_END
 
@@ -278,16 +276,13 @@ MACHINE_END
 
 #ifdef CONFIG_MACH_LPD7A404
 
-extern void lh7a404_init_irq (void);
-extern void lh7a40x_init_time (void);
-
 MACHINE_START (LPD7A404, "Logic Product Development LPD7A404-10")
 	MAINTAINER ("Marc Singer")
 	BOOT_MEM (0xc0000000, 0x80000000, io_p2v (0x80000000))
 	BOOT_PARAMS (0xc0000100)
 	MAPIO (lpd7a400_map_io)
 	INITIRQ (lh7a404_init_irq)
-	INITTIME (lh7a40x_init_time)
+	.timer		= &lpd7a40x_timer,
 	INIT_MACHINE (lpd7a40x_init)
 MACHINE_END
 

arch/arm/mach-lh7a40x/common.h

+/*
+ * linux/arch/arm/mach-lh7a40x/common.h
+ *
+ * Header file for common stuff.
+ */
+struct sys_timer;
+extern struct sys_timer lh7a40x_timer;
+
+extern void lh7a400_init_irq (void);

arch/arm/mach-lh7a40x/time.c

@@ -20,6 +20,7 @@
 #include <asm/leds.h>
 
 #include <asm/mach/time.h>
+#include "common.h"
 
 #if HZ < 100
 # define TIMER_CONTROL	TIMER_CONTROL2
@@ -52,7 +53,7 @@ static struct irqaction lh7a40x_timer_irq = {
 	.handler	= lh7a40x_timer_interrupt
 };
 
-void __init lh7a40x_init_time(void)
+static void __init lh7a40x_timer_init(void)
 {
 				/* Stop/disable all timers */
 	TIMER_CONTROL1 = 0;
@@ -65,3 +66,6 @@ void __init lh7a40x_init_time(void)
 	TIMER_CONTROL = TIMER_MODE;
 }
 
+struct sys_timer lh7a40x_timer = {
+	.init		= &lh7a40x_timer,
+};

arch/arm/mach-omap/Makefile.boot

+   zreladdr-y		:= 0x10008000
+params_phys-y		:= 0x10000100
+initrd_phys-y		:= 0x10800000
+

arch/arm/mach-omap/board-generic.c

@@ -30,8 +30,6 @@
 
 #include "common.h"
 
-extern void __init omap_init_time(void);
-
 static void __init omap_generic_init_irq(void)
 {
 	omap_init_irq();
@@ -118,5 +116,5 @@ MACHINE_START(OMAP_GENERIC, "Generic OMAP1510/1610/1710")
 	MAPIO(omap_generic_map_io)
 	INITIRQ(omap_generic_init_irq)
 	INIT_MACHINE(omap_generic_init)
-	INITTIME(omap_init_time)
+	.timer		= &omap_timer,
 MACHINE_END

arch/arm/mach-omap/board-h2.c

@@ -35,8 +35,6 @@
 
 #include "common.h"
 
-extern void __init omap_init_time(void);
-
 static struct map_desc h2_io_desc[] __initdata = {
 { OMAP1610_ETHR_BASE, OMAP1610_ETHR_START, OMAP1610_ETHR_SIZE,MT_DEVICE },
 { OMAP1610_NOR_FLASH_BASE, OMAP1610_NOR_FLASH_START, OMAP1610_NOR_FLASH_SIZE,
@@ -111,5 +109,5 @@ MACHINE_START(OMAP_H2, "TI-H2")
 	MAPIO(h2_map_io)
 	INITIRQ(h2_init_irq)
 	INIT_MACHINE(h2_init)
-	INITTIME(omap_init_time)
+	.timer		= &omap_timer,
 MACHINE_END

arch/arm/mach-omap/board-h3.c

@@ -32,8 +32,6 @@
 #include <asm/mach-types.h>
 #include "common.h"
 
-extern void __init omap_init_time(void);
-
 void h3_init_irq(void)
 {
 	omap_init_irq();
@@ -86,5 +84,5 @@ MACHINE_START(OMAP_H3, "TI OMAP1710 H3 board")
 	MAPIO(h3_map_io)
 	INITIRQ(h3_init_irq)
 	INIT_MACHINE(h3_init)
-	INITTIME(omap_init_time)
+	.timer		= &omap_timer,
 MACHINE_END

arch/arm/mach-omap/board-innovator.c

@@ -33,8 +33,6 @@
 
 #include "common.h"
 
-extern void __init omap_init_time(void);
-
 #ifdef CONFIG_ARCH_OMAP1510
 
 extern int omap_gpio_init(void);
@@ -203,5 +201,5 @@ MACHINE_START(OMAP_INNOVATOR, "TI-Innovator")
 	MAPIO(innovator_map_io)
 	INITIRQ(innovator_init_irq)
 	INIT_MACHINE(innovator_init)
-	INITTIME(omap_init_time)
+	.timer		= &omap_timer,
 MACHINE_END

arch/arm/mach-omap/board-osk.c

@@ -41,8 +41,6 @@
 
 #include "common.h"
 
-extern void __init omap_init_time(void);
-
 static struct map_desc osk5912_io_desc[] __initdata = {
 { OMAP_OSK_ETHR_BASE, OMAP_OSK_ETHR_START, OMAP_OSK_ETHR_SIZE,MT_DEVICE },
 { OMAP_OSK_NOR_FLASH_BASE, OMAP_OSK_NOR_FLASH_START, OMAP_OSK_NOR_FLASH_SIZE,
@@ -97,5 +95,5 @@ MACHINE_START(OMAP_OSK, "TI-OSK")
 	MAPIO(osk_map_io)
 	INITIRQ(osk_init_irq)
 	INIT_MACHINE(osk_init)
-	INITTIME(omap_init_time)
+	.timer		= &omap_timer,
 MACHINE_END

arch/arm/mach-omap/board-perseus2.c

@@ -27,8 +27,6 @@
 
 #include "common.h"
 
-extern void __init omap_init_time(void);
-
 void omap_perseus2_init_irq(void)
 {
 	omap_init_irq();
@@ -115,5 +113,5 @@ MACHINE_START(OMAP_PERSEUS2, "OMAP730 Perseus2")
 	MAPIO(omap_perseus2_map_io)
 	INITIRQ(omap_perseus2_init_irq)
 	INIT_MACHINE(omap_perseus2_init)
-	INITTIME(omap_init_time)
+	.timer		= &omap_timer,
 MACHINE_END

arch/arm/mach-omap/common.h

@@ -27,8 +27,9 @@
 #ifndef __ARCH_ARM_MACH_OMAP_COMMON_H
 #define __ARCH_ARM_MACH_OMAP_COMMON_H
 
+struct sys_timer;
+
 extern void omap_map_io(void);
+extern struct sys_timer omap_timer;
 
 #endif /* __ARCH_ARM_MACH_OMAP_COMMON_H */
-
-

arch/arm/mach-omap/time.c

@@ -199,11 +199,9 @@ static struct irqaction omap_timer_irq = {
 	.handler	= omap_timer_interrupt
 };
 
-void __init omap_init_time(void)
+static void __init omap_timer_init(void)
 {
 	/* Since we don't call request_irq, we must init the structure */
-	gettimeoffset = omap_gettimeoffset;
-
 #ifdef OMAP1510_USE_32KHZ_TIMER
 	timer32k_write(TIMER32k_CR, 0x0);
 	timer32k_write(TIMER32k_TVR,TIMER32k_PERIOD);
@@ -215,3 +213,7 @@ void __init omap_init_time(void)
 #endif
 }
 
+struct sys_timer omap_timer = {
+	.init		= omap_timer_init,
+	.offset		= omap_gettimeoffset,
+};

arch/arm/mach-pxa/Makefile.boot

+   zreladdr-y	:= 0xa0008000
+

arch/arm/mach-pxa/generic.h

@@ -9,9 +9,11 @@
  * published by the Free Software Foundation.
  */
 
+struct sys_timer;
+
+extern struct sys_timer pxa_timer;
 extern void __init pxa_map_io(void);
 extern void __init pxa_init_irq(void);
-extern void __init pxa_init_time(void);
 
 extern unsigned int get_clk_frequency_khz(int info);
 

arch/arm/mach-pxa/idp.c

@@ -119,6 +119,6 @@ MACHINE_START(PXA_IDP, "Accelent Xscale IDP")
 	BOOT_MEM(0xa0000000, 0x40000000, io_p2v(0x40000000))
 	MAPIO(idp_map_io)
 	INITIRQ(idp_init_irq)
-	INITTIME(pxa_init_time)
+	.timer		= &pxa_timer,
 	INIT_MACHINE(idp_init)
 MACHINE_END

arch/arm/mach-pxa/lubbock.c

@@ -38,6 +38,8 @@
 #include "generic.h"
 
 
+#define LUB_MISC_WR		__LUB_REG(LUBBOCK_FPGA_PHYS + 0x080)
+
 void lubbock_set_misc_wr(unsigned int mask, unsigned int set)
 {
 	unsigned long flags;
@@ -221,6 +223,6 @@ MACHINE_START(LUBBOCK, "Intel DBPXA250 Development Platform (aka Lubbock)")
 	BOOT_MEM(0xa0000000, 0x40000000, io_p2v(0x40000000))
 	MAPIO(lubbock_map_io)
 	INITIRQ(lubbock_init_irq)
-	INITTIME(pxa_init_time)
+	.timer		= &pxa_timer,
 	INIT_MACHINE(lubbock_init)
 MACHINE_END

arch/arm/mach-pxa/mainstone.c

@@ -198,6 +198,6 @@ MACHINE_START(MAINSTONE, "Intel HCDDBBVA0 Development Platform (aka Mainstone)")
 	BOOT_MEM(0xa0000000, 0x40000000, io_p2v(0x40000000))
 	MAPIO(mainstone_map_io)
 	INITIRQ(mainstone_init_irq)
-	INITTIME(pxa_init_time)
+	.timer		= &pxa_timer,
 	INIT_MACHINE(mainstone_init)
 MACHINE_END

arch/arm/mach-pxa/pm.c

@@ -47,9 +47,6 @@ extern void pxa_cpu_resume(void);
  */
 enum {	SLEEP_SAVE_START = 0,
 
-	SLEEP_SAVE_OIER,
-	SLEEP_SAVE_OSMR0, SLEEP_SAVE_OSMR1, SLEEP_SAVE_OSMR2, SLEEP_SAVE_OSMR3,
-
 	SLEEP_SAVE_GPLR0, SLEEP_SAVE_GPLR1, SLEEP_SAVE_GPLR2,
 	SLEEP_SAVE_GPDR0, SLEEP_SAVE_GPDR1, SLEEP_SAVE_GPDR2,
 	SLEEP_SAVE_GRER0, SLEEP_SAVE_GRER1, SLEEP_SAVE_GRER2,
@@ -81,13 +78,6 @@ static int pxa_pm_enter(u32 state)
 	rtc.tv_nsec = 0;
 	save_time_delta(&delta, &rtc);
 
-	/* save vital registers */
-	SAVE(OSMR0);
-	SAVE(OSMR1);
-	SAVE(OSMR2);
-	SAVE(OSMR3);
-	SAVE(OIER);
-
 	SAVE(GPLR0); SAVE(GPLR1); SAVE(GPLR2);
 	SAVE(GPDR0); SAVE(GPDR1); SAVE(GPDR2);
 	SAVE(GRER0); SAVE(GRER1); SAVE(GRER2);
@@ -148,15 +138,6 @@ static int pxa_pm_enter(u32 state)
 
 	PSSR = PSSR_RDH | PSSR_PH;
 
-	RESTORE(OSMR0);
-	RESTORE(OSMR1);
-	RESTORE(OSMR2);
-	RESTORE(OSMR3);
-	RESTORE(OIER);
-
-	/* OSMR0 is the system timer: make sure OSCR is sufficiently behind */
-	OSCR = OSMR0 - LATCH;
-
 	RESTORE(CKEN);
 
 	ICLR = 0;

arch/arm/mach-pxa/time.c

@@ -105,11 +105,10 @@ static struct irqaction pxa_timer_irq = {
 	.handler	= pxa_timer_interrupt
 };
 
-void __init pxa_init_time(void)
+static void __init pxa_timer_init(void)
 {
 	struct timespec tv;
 
-	gettimeoffset = pxa_gettimeoffset;
 	set_rtc = pxa_set_rtc;
 
 	tv.tv_nsec = 0;
@@ -123,3 +122,39 @@ void __init pxa_init_time(void)
 	OSCR = 0;		/* initialize free-running timer, force first match */
 }
 
+#ifdef CONFIG_PM
+static unsigned long osmr[4], oier;
+
+static void pxa_timer_suspend(void)
+{
+	osmr[0] = OSMR0;
+	osmr[1] = OSMR1;
+	osmr[2] = OSMR2;
+	osmr[3] = OSMR3;
+	oier = OIER;
+}
+
+static void pxa_timer_resume(void)
+{
+	OSMR0 = osmr[0];
+	OSMR1 = osmr[1];
+	OSMR2 = osmr[2];
+	OSMR3 = osmr[3];
+	OIER = oier;
+
+	/*
+	 * OSMR0 is the system timer: make sure OSCR is sufficiently behind
+	 */
+	OSCR = OSMR0 - LATCH;
+}
+#else
+#define pxa_timer_suspend NULL
+#define pxa_timer_resume NULL
+#endif
+
+struct sys_timer pxa_timer = {
+	.init		= pxa_timer_init,
+	.suspend	= pxa_timer_suspend,
+	.resume		= pxa_timer_resume,
+	.offset		= pxa_gettimeoffset,
+};

arch/arm/mach-rpc/Makefile.boot

+   zreladdr-y	:= 0x10008000
+params_phys-y	:= 0x10000100
+initrd_phys-y	:= 0x18000000
+

arch/arm/mach-rpc/riscpc.c

@@ -15,7 +15,6 @@
 #include <linux/pm.h>
 #include <linux/init.h>
 #include <linux/sched.h>
-#include <linux/interrupt.h>
 
 #include <asm/elf.h>
 #include <asm/io.h>
@@ -85,30 +84,7 @@ void __init rpc_map_io(void)
 	elf_hwcap &= ~HWCAP_HALF;
 }
 
-static irqreturn_t
-rpc_timer_interrupt(int irq, void *dev_id, struct pt_regs *regs)
-{
-	timer_tick(regs);
-
-	return IRQ_HANDLED;
-}
-
-static struct irqaction rpc_timer_irq = {
-	.name		= "RiscPC Timer Tick",
-	.flags		= SA_INTERRUPT,
-	.handler	= rpc_timer_interrupt
-};
-
-/*
- * Set up timer interrupt.
- */
-void __init rpc_init_time(void)
-{
-	extern void ioctime_init(void);
-	ioctime_init();
-
-	setup_irq(IRQ_TIMER, &rpc_timer_irq);
-}
+extern struct sys_timer ioc_timer;
 
 MACHINE_START(RISCPC, "Acorn-RiscPC")
 	MAINTAINER("Russell King")
@@ -118,5 +94,5 @@ MACHINE_START(RISCPC, "Acorn-RiscPC")
 	DISABLE_PARPORT(1)
 	MAPIO(rpc_map_io)
 	INITIRQ(rpc_init_irq)
-	INITTIME(rpc_init_time)
+	.timer		= &ioc_timer,
 MACHINE_END

arch/arm/mach-s3c2410/Makefile.boot

+   zreladdr-y	:= 0x30008000
+params_phys-y	:= 0x30000100
+

arch/arm/mach-s3c2410/mach-bast.c

@@ -225,16 +225,11 @@ void __init bast_init_irq(void)
 	s3c2410_init_irq();
 }
 
-void __init bast_init_time(void)
-{
-	s3c2410_init_time();
-}
-
 MACHINE_START(BAST, "Simtec-BAST")
      MAINTAINER("Ben Dooks <ben@simtec.co.uk>")
      BOOT_MEM(S3C2410_SDRAM_PA, S3C2410_PA_UART, S3C2410_VA_UART)
      BOOT_PARAMS(S3C2410_SDRAM_PA + 0x100)
      MAPIO(bast_map_io)
      INITIRQ(bast_init_irq)
-     INITTIME(bast_init_time)
+     .timer		= &s3c2410_timer,
 MACHINE_END

arch/arm/mach-s3c2410/mach-h1940.c

@@ -110,16 +110,11 @@ void __init h1940_init_irq(void)
 
 }
 
-void __init h1940_init_time(void)
-{
-	s3c2410_init_time();
-}
-
 MACHINE_START(H1940, "IPAQ-H1940")
      MAINTAINER("Ben Dooks <ben@fluff.org>")
      BOOT_MEM(S3C2410_SDRAM_PA, S3C2410_PA_UART, S3C2410_VA_UART)
      BOOT_PARAMS(S3C2410_SDRAM_PA + 0x100)
      MAPIO(h1940_map_io)
      INITIRQ(h1940_init_irq)
-     INITTIME(h1940_init_time)
+     .timer		= &s3c2410_timer,
 MACHINE_END

arch/arm/mach-s3c2410/mach-smdk2410.c

@@ -113,11 +113,6 @@ void __init smdk2410_init_irq(void)
 	s3c2410_init_irq();
 }
 
-void __init smdk2410_init_time(void)
-{
-	s3c2410_init_time();
-}
-
 MACHINE_START(SMDK2410, "SMDK2410") /* @TODO: request a new identifier and switch
 				    * to SMDK2410 */
      MAINTAINER("Jonas Dietsche")
@@ -125,7 +120,7 @@ MACHINE_START(SMDK2410, "SMDK2410") /* @TODO: request a new identifier and switc
      BOOT_PARAMS(S3C2410_SDRAM_PA + 0x100)
      MAPIO(smdk2410_map_io)
      INITIRQ(smdk2410_init_irq)
-     INITTIME(smdk2410_init_time)
+     .timer		= &s3c2410_timer,
 MACHINE_END
 
 

arch/arm/mach-s3c2410/mach-vr1000.c

@@ -170,16 +170,11 @@ void __init vr1000_init_irq(void)
 	s3c2410_init_irq();
 }
 
-void __init vr1000_init_time(void)
-{
-	s3c2410_init_time();
-}
-
 MACHINE_START(VR1000, "Thorcom-VR1000")
      MAINTAINER("Ben Dooks <ben@simtec.co.uk>")
      BOOT_MEM(S3C2410_SDRAM_PA, S3C2410_PA_UART, S3C2410_VA_UART)
      BOOT_PARAMS(S3C2410_SDRAM_PA + 0x100)
      MAPIO(vr1000_map_io)
      INITIRQ(vr1000_init_irq)
-     INITTIME(vr1000_init_time)
+     .timer		= &s3c2410_timer,
 MACHINE_END

arch/arm/mach-s3c2410/s3c2410.h

@@ -23,7 +23,8 @@ extern void s3c2410_init_uarts(struct s3c2410_uartcfg *, int no);
 
 extern void s3c2410_init_irq(void);
 
-extern void s3c2410_init_time(void);
+struct sys_timer;
+extern struct sys_timer s3c2410_timer;
 
 /* the board structure is used at first initialsation time
  * to get info such as the devices to register for this

arch/arm/mach-s3c2410/time.c

@@ -105,15 +105,13 @@ static struct irqaction s3c2410_timer_irq = {
  * Currently we only use timer4, as it is the only timer which has no
  * other function that can be exploited externally
  */
-void __init s3c2410_init_time (void)
+static void __init s3c2410_timer_init (void)
 {
 	unsigned long tcon;
 	unsigned long tcnt;
 	unsigned long tcfg1;
 	unsigned long tcfg0;
 
-	gettimeoffset = s3c2410_gettimeoffset;
-
 	tcnt = 0xffff;  /* default value for tcnt */
 
 	/* read the current timer configuration bits */
@@ -186,5 +184,7 @@ void __init s3c2410_init_time (void)
 	__raw_writel(tcon, S3C2410_TCON);
 }
 
-
-
+struct sys_timer s3c2410_timer = {
+	.init		= s3c2410_timer_init,
+	.offset		= s3c2410_gettimeoffset,
+};