From ce7a3fdc5c55fd01d8e2deda0daef84473644f8b Mon Sep 17 00:00:00 2001
From: Russell King <rmk@dyn-67.arm.linux.org.uk>
Date: Thu, 15 Jun 2006 18:00:34 +0100
Subject: [ARM] Remove rt_sigframe puc and pinfo pointers

These two members appear to be surplus to requirements.  Discussing
this issue with glibc folk:

| > Additionally, do you see any need for these weird "puc" and "pinfo"
| > pointers in the kernels rt_sigframe structure?  Can we kill them?
|
| We can kill them.  I checked with Phil B. about them last week, and he
| didn't remember any reason they still needed to be there.  And nothing
| should know where they are on the stack.  Unfortunately, doing this
| will upset GDB, which knows that the saved registers are 0x88 bytes
| above the stack pointer on entrance to an rt signal trampoline; but,
| since puc and pinfo are quite recognizable, I can adapt GDB to support
| the new layout if you want to remove them.

So remove them.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/kernel/signal.c | 4 ----
 1 file changed, 4 deletions(-)

(limited to 'arch')

diff --git a/arch/arm/kernel/signal.c b/arch/arm/kernel/signal.c
index a0cd0a9..0ddbf27 100644
--- a/arch/arm/kernel/signal.c
+++ b/arch/arm/kernel/signal.c
@@ -200,8 +200,6 @@ struct sigframe {
 };
 
 struct rt_sigframe {
-	struct siginfo __user *pinfo;
-	void __user *puc;
 	struct siginfo info;
 	struct ucontext uc;
 	unsigned long retcode[2];
@@ -511,8 +509,6 @@ setup_rt_frame(int usig, struct k_sigaction *ka, siginfo_t *info,
 	if (!frame)
 		return 1;
 
-	__put_user_error(&frame->info, &frame->pinfo, err);
-	__put_user_error(&frame->uc, &frame->puc, err);
 	err |= copy_siginfo_to_user(&frame->info, info);
 
 	__put_user_error(0, &frame->uc.uc_flags, err);
-- 
cgit v1.1


From cc1a852137d6c12d50c372d61a1c5f763998536b Mon Sep 17 00:00:00 2001
From: Russell King <rmk@dyn-67.arm.linux.org.uk>
Date: Thu, 15 Jun 2006 18:02:25 +0100
Subject: [ARM] Replace extramask with a full copy of the sigmask

There's not much point in splitting the sigmask between two different
locations, so copy it entirely into a proper sigset_t.  This will
eventually allow rt_sigframe and sigframe to share more code.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/kernel/signal.c | 13 +++----------
 1 file changed, 3 insertions(+), 10 deletions(-)

(limited to 'arch')

diff --git a/arch/arm/kernel/signal.c b/arch/arm/kernel/signal.c
index 0ddbf27..7a4213e 100644
--- a/arch/arm/kernel/signal.c
+++ b/arch/arm/kernel/signal.c
@@ -194,7 +194,7 @@ struct aux_sigframe {
  */
 struct sigframe {
 	struct sigcontext sc;
-	unsigned long extramask[_NSIG_WORDS-1];
+	sigset_t sigmask;
 	unsigned long retcode[2];
 	struct aux_sigframe aux __attribute__((aligned(8)));
 };
@@ -264,10 +264,7 @@ asmlinkage int sys_sigreturn(struct pt_regs *regs)
 
 	if (!access_ok(VERIFY_READ, frame, sizeof (*frame)))
 		goto badframe;
-	if (__get_user(set.sig[0], &frame->sc.oldmask)
-	    || (_NSIG_WORDS > 1
-	        && __copy_from_user(&set.sig[1], &frame->extramask,
-				    sizeof(frame->extramask))))
+	if (__copy_from_user(&set, &frame->sigmask, sizeof(set)))
 		goto badframe;
 
 	sigdelsetmask(&set, ~_BLOCKABLE);
@@ -486,11 +483,7 @@ setup_frame(int usig, struct k_sigaction *ka, sigset_t *set, struct pt_regs *reg
 		return 1;
 
 	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));
-	}
+	err |= __copy_to_user(&frame->sigmask, set, sizeof(*set));
 
 	if (err == 0)
 		err = setup_return(regs, ka, frame->retcode, frame, usig);
-- 
cgit v1.1


From 7d4fdc19fc134f69f3711c14e63caef56aee0f2a Mon Sep 17 00:00:00 2001
From: Russell King <rmk@dyn-67.arm.linux.org.uk>
Date: Thu, 15 Jun 2006 20:13:25 +0100
Subject: [ARM] Merge sigcontext and sigmask members of sigframe

ucontext contains both the sigcontext and sigmask structures, and
is also used for rt signal contexts.  Re-use this structure for
non-rt signals.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/kernel/signal.c | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

(limited to 'arch')

diff --git a/arch/arm/kernel/signal.c b/arch/arm/kernel/signal.c
index 7a4213e..9f1e176 100644
--- a/arch/arm/kernel/signal.c
+++ b/arch/arm/kernel/signal.c
@@ -193,8 +193,7 @@ struct aux_sigframe {
  * Do a signal return; undo the signal stack.  These are aligned to 64-bit.
  */
 struct sigframe {
-	struct sigcontext sc;
-	sigset_t sigmask;
+	struct ucontext uc;
 	unsigned long retcode[2];
 	struct aux_sigframe aux __attribute__((aligned(8)));
 };
@@ -264,7 +263,7 @@ asmlinkage int sys_sigreturn(struct pt_regs *regs)
 
 	if (!access_ok(VERIFY_READ, frame, sizeof (*frame)))
 		goto badframe;
-	if (__copy_from_user(&set, &frame->sigmask, sizeof(set)))
+	if (__copy_from_user(&set, &frame->uc.uc_sigmask, sizeof(set)))
 		goto badframe;
 
 	sigdelsetmask(&set, ~_BLOCKABLE);
@@ -273,7 +272,7 @@ asmlinkage int sys_sigreturn(struct pt_regs *regs)
 	recalc_sigpending();
 	spin_unlock_irq(&current->sighand->siglock);
 
-	if (restore_sigcontext(regs, &frame->sc, &frame->aux))
+	if (restore_sigcontext(regs, &frame->uc.uc_mcontext, &frame->aux))
 		goto badframe;
 
 	/* Send SIGTRAP if we're single-stepping */
@@ -482,8 +481,8 @@ 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->aux, regs, set->sig[0]);
-	err |= __copy_to_user(&frame->sigmask, set, sizeof(*set));
+	err |= setup_sigcontext(&frame->uc.uc_mcontext, &frame->aux, regs, set->sig[0]);
+	err |= __copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set));
 
 	if (err == 0)
 		err = setup_return(regs, ka, frame->retcode, frame, usig);
-- 
cgit v1.1


From cb3504e8fa84870aabcf51c67e29675817e30836 Mon Sep 17 00:00:00 2001
From: Russell King <rmk@dyn-67.arm.linux.org.uk>
Date: Thu, 15 Jun 2006 20:18:25 +0100
Subject: [ARM] Re-use sigframe within rt_sigframe

sigframe is now a contained subset of rt_sigframe, so we can start
to re-use code which accesses sigframe data for both rt and non-rt
signals.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/kernel/signal.c | 24 +++++++++++-------------
 1 file changed, 11 insertions(+), 13 deletions(-)

(limited to 'arch')

diff --git a/arch/arm/kernel/signal.c b/arch/arm/kernel/signal.c
index 9f1e176..652bb1a 100644
--- a/arch/arm/kernel/signal.c
+++ b/arch/arm/kernel/signal.c
@@ -200,9 +200,7 @@ struct sigframe {
 
 struct rt_sigframe {
 	struct siginfo info;
-	struct ucontext uc;
-	unsigned long retcode[2];
-	struct aux_sigframe aux __attribute__((aligned(8)));
+	struct sigframe sig;
 };
 
 static int
@@ -308,7 +306,7 @@ asmlinkage int sys_rt_sigreturn(struct pt_regs *regs)
 
 	if (!access_ok(VERIFY_READ, frame, sizeof (*frame)))
 		goto badframe;
-	if (__copy_from_user(&set, &frame->uc.uc_sigmask, sizeof(set)))
+	if (__copy_from_user(&set, &frame->sig.uc.uc_sigmask, sizeof(set)))
 		goto badframe;
 
 	sigdelsetmask(&set, ~_BLOCKABLE);
@@ -317,10 +315,10 @@ 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, &frame->aux))
+	if (restore_sigcontext(regs, &frame->sig.uc.uc_mcontext, &frame->sig.aux))
 		goto badframe;
 
-	if (do_sigaltstack(&frame->uc.uc_stack, NULL, regs->ARM_sp) == -EFAULT)
+	if (do_sigaltstack(&frame->sig.uc.uc_stack, NULL, regs->ARM_sp) == -EFAULT)
 		goto badframe;
 
 	/* Send SIGTRAP if we're single-stepping */
@@ -503,21 +501,21 @@ setup_rt_frame(int usig, struct k_sigaction *ka, siginfo_t *info,
 
 	err |= copy_siginfo_to_user(&frame->info, info);
 
-	__put_user_error(0, &frame->uc.uc_flags, err);
-	__put_user_error(NULL, &frame->uc.uc_link, err);
+	__put_user_error(0, &frame->sig.uc.uc_flags, err);
+	__put_user_error(NULL, &frame->sig.uc.uc_link, err);
 
 	memset(&stack, 0, sizeof(stack));
 	stack.ss_sp = (void __user *)current->sas_ss_sp;
 	stack.ss_flags = sas_ss_flags(regs->ARM_sp);
 	stack.ss_size = current->sas_ss_size;
-	err |= __copy_to_user(&frame->uc.uc_stack, &stack, sizeof(stack));
+	err |= __copy_to_user(&frame->sig.uc.uc_stack, &stack, sizeof(stack));
 
-	err |= setup_sigcontext(&frame->uc.uc_mcontext, &frame->aux,
+	err |= setup_sigcontext(&frame->sig.uc.uc_mcontext, &frame->sig.aux,
 				regs, set->sig[0]);
-	err |= __copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set));
+	err |= __copy_to_user(&frame->sig.uc.uc_sigmask, set, sizeof(*set));
 
 	if (err == 0)
-		err = setup_return(regs, ka, frame->retcode, frame, usig);
+		err = setup_return(regs, ka, frame->sig.retcode, frame, usig);
 
 	if (err == 0) {
 		/*
@@ -526,7 +524,7 @@ setup_rt_frame(int usig, struct k_sigaction *ka, siginfo_t *info,
 		 *   -- Peter Maydell <pmaydell@chiark.greenend.org.uk> 2000-12-06
 		 */
 		regs->ARM_r1 = (unsigned long)&frame->info;
-		regs->ARM_r2 = (unsigned long)&frame->uc;
+		regs->ARM_r2 = (unsigned long)&frame->sig.uc;
 	}
 
 	return err;
-- 
cgit v1.1


From 680714844fd1dcc6f03b22353103985be9d58db6 Mon Sep 17 00:00:00 2001
From: Russell King <rmk@dyn-67.arm.linux.org.uk>
Date: Thu, 15 Jun 2006 20:23:02 +0100
Subject: [ARM] Gather common sigframe restoration code into restore_sigframe()

Gather the sigmask restoration code inside restore_sigcontext(), and
rename the function restore_sigframe().  Pass it a sigframe structure.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/kernel/signal.c | 76 +++++++++++++++++++++---------------------------
 1 file changed, 33 insertions(+), 43 deletions(-)

(limited to 'arch')

diff --git a/arch/arm/kernel/signal.c b/arch/arm/kernel/signal.c
index 652bb1a..1e2b54d 100644
--- a/arch/arm/kernel/signal.c
+++ b/arch/arm/kernel/signal.c
@@ -203,39 +203,47 @@ struct rt_sigframe {
 	struct sigframe sig;
 };
 
-static int
-restore_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc,
-		   struct aux_sigframe __user *aux)
+static int restore_sigframe(struct pt_regs *regs, struct sigframe __user *sf)
 {
-	int err = 0;
+	sigset_t set;
+	int err;
 
-	__get_user_error(regs->ARM_r0, &sc->arm_r0, err);
-	__get_user_error(regs->ARM_r1, &sc->arm_r1, err);
-	__get_user_error(regs->ARM_r2, &sc->arm_r2, err);
-	__get_user_error(regs->ARM_r3, &sc->arm_r3, err);
-	__get_user_error(regs->ARM_r4, &sc->arm_r4, err);
-	__get_user_error(regs->ARM_r5, &sc->arm_r5, err);
-	__get_user_error(regs->ARM_r6, &sc->arm_r6, err);
-	__get_user_error(regs->ARM_r7, &sc->arm_r7, err);
-	__get_user_error(regs->ARM_r8, &sc->arm_r8, err);
-	__get_user_error(regs->ARM_r9, &sc->arm_r9, err);
-	__get_user_error(regs->ARM_r10, &sc->arm_r10, err);
-	__get_user_error(regs->ARM_fp, &sc->arm_fp, err);
-	__get_user_error(regs->ARM_ip, &sc->arm_ip, err);
-	__get_user_error(regs->ARM_sp, &sc->arm_sp, err);
-	__get_user_error(regs->ARM_lr, &sc->arm_lr, err);
-	__get_user_error(regs->ARM_pc, &sc->arm_pc, err);
-	__get_user_error(regs->ARM_cpsr, &sc->arm_cpsr, err);
+	err = __copy_from_user(&set, &sf->uc.uc_sigmask, sizeof(set));
+	if (err == 0) {
+		sigdelsetmask(&set, ~_BLOCKABLE);
+		spin_lock_irq(&current->sighand->siglock);
+		current->blocked = set;
+		recalc_sigpending();
+		spin_unlock_irq(&current->sighand->siglock);
+	}
+
+	__get_user_error(regs->ARM_r0, &sf->uc.uc_mcontext.arm_r0, err);
+	__get_user_error(regs->ARM_r1, &sf->uc.uc_mcontext.arm_r1, err);
+	__get_user_error(regs->ARM_r2, &sf->uc.uc_mcontext.arm_r2, err);
+	__get_user_error(regs->ARM_r3, &sf->uc.uc_mcontext.arm_r3, err);
+	__get_user_error(regs->ARM_r4, &sf->uc.uc_mcontext.arm_r4, err);
+	__get_user_error(regs->ARM_r5, &sf->uc.uc_mcontext.arm_r5, err);
+	__get_user_error(regs->ARM_r6, &sf->uc.uc_mcontext.arm_r6, err);
+	__get_user_error(regs->ARM_r7, &sf->uc.uc_mcontext.arm_r7, err);
+	__get_user_error(regs->ARM_r8, &sf->uc.uc_mcontext.arm_r8, err);
+	__get_user_error(regs->ARM_r9, &sf->uc.uc_mcontext.arm_r9, err);
+	__get_user_error(regs->ARM_r10, &sf->uc.uc_mcontext.arm_r10, err);
+	__get_user_error(regs->ARM_fp, &sf->uc.uc_mcontext.arm_fp, err);
+	__get_user_error(regs->ARM_ip, &sf->uc.uc_mcontext.arm_ip, err);
+	__get_user_error(regs->ARM_sp, &sf->uc.uc_mcontext.arm_sp, err);
+	__get_user_error(regs->ARM_lr, &sf->uc.uc_mcontext.arm_lr, err);
+	__get_user_error(regs->ARM_pc, &sf->uc.uc_mcontext.arm_pc, err);
+	__get_user_error(regs->ARM_cpsr, &sf->uc.uc_mcontext.arm_cpsr, err);
 
 	err |= !valid_user_regs(regs);
 
 #ifdef CONFIG_IWMMXT
 	if (err == 0 && test_thread_flag(TIF_USING_IWMMXT))
-		err |= restore_iwmmxt_context(&aux->iwmmxt);
+		err |= restore_iwmmxt_context(&sf->aux.iwmmxt);
 #endif
 #ifdef CONFIG_VFP
 //	if (err == 0)
-//		err |= vfp_restore_state(&aux->vfp);
+//		err |= vfp_restore_state(&sf->aux.vfp);
 #endif
 
 	return err;
@@ -244,7 +252,6 @@ restore_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc,
 asmlinkage int sys_sigreturn(struct pt_regs *regs)
 {
 	struct sigframe __user *frame;
-	sigset_t set;
 
 	/* Always make any pending restarted system calls return -EINTR */
 	current_thread_info()->restart_block.fn = do_no_restart_syscall;
@@ -261,16 +268,8 @@ asmlinkage int sys_sigreturn(struct pt_regs *regs)
 
 	if (!access_ok(VERIFY_READ, frame, sizeof (*frame)))
 		goto badframe;
-	if (__copy_from_user(&set, &frame->uc.uc_sigmask, sizeof(set)))
-		goto badframe;
-
-	sigdelsetmask(&set, ~_BLOCKABLE);
-	spin_lock_irq(&current->sighand->siglock);
-	current->blocked = set;
-	recalc_sigpending();
-	spin_unlock_irq(&current->sighand->siglock);
 
-	if (restore_sigcontext(regs, &frame->uc.uc_mcontext, &frame->aux))
+	if (restore_sigframe(regs, frame))
 		goto badframe;
 
 	/* Send SIGTRAP if we're single-stepping */
@@ -289,7 +288,6 @@ badframe:
 asmlinkage int sys_rt_sigreturn(struct pt_regs *regs)
 {
 	struct rt_sigframe __user *frame;
-	sigset_t set;
 
 	/* Always make any pending restarted system calls return -EINTR */
 	current_thread_info()->restart_block.fn = do_no_restart_syscall;
@@ -306,16 +304,8 @@ asmlinkage int sys_rt_sigreturn(struct pt_regs *regs)
 
 	if (!access_ok(VERIFY_READ, frame, sizeof (*frame)))
 		goto badframe;
-	if (__copy_from_user(&set, &frame->sig.uc.uc_sigmask, sizeof(set)))
-		goto badframe;
-
-	sigdelsetmask(&set, ~_BLOCKABLE);
-	spin_lock_irq(&current->sighand->siglock);
-	current->blocked = set;
-	recalc_sigpending();
-	spin_unlock_irq(&current->sighand->siglock);
 
-	if (restore_sigcontext(regs, &frame->sig.uc.uc_mcontext, &frame->sig.aux))
+	if (restore_sigframe(regs, &frame->sig))
 		goto badframe;
 
 	if (do_sigaltstack(&frame->sig.uc.uc_stack, NULL, regs->ARM_sp) == -EFAULT)
-- 
cgit v1.1


From aca6ca10974aa78adfb47291722ce851160213e4 Mon Sep 17 00:00:00 2001
From: Russell King <rmk@dyn-67.arm.linux.org.uk>
Date: Thu, 15 Jun 2006 20:28:03 +0100
Subject: [ARM] Gather common sigframe saving code into setup_sigframe()

Gather the common sigmask savbing code inside setup_sigcontext(), and
rename the function setup_sigframe().  Pass it a sigframe structure.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/kernel/signal.c | 62 ++++++++++++++++++++++--------------------------
 1 file changed, 29 insertions(+), 33 deletions(-)

(limited to 'arch')

diff --git a/arch/arm/kernel/signal.c b/arch/arm/kernel/signal.c
index 1e2b54d..9628511 100644
--- a/arch/arm/kernel/signal.c
+++ b/arch/arm/kernel/signal.c
@@ -325,41 +325,42 @@ badframe:
 }
 
 static int
-setup_sigcontext(struct sigcontext __user *sc, struct aux_sigframe __user *aux,
-		 struct pt_regs *regs, unsigned long mask)
+setup_sigframe(struct sigframe __user *sf, struct pt_regs *regs, sigset_t *set)
 {
 	int err = 0;
 
-	__put_user_error(regs->ARM_r0, &sc->arm_r0, err);
-	__put_user_error(regs->ARM_r1, &sc->arm_r1, err);
-	__put_user_error(regs->ARM_r2, &sc->arm_r2, err);
-	__put_user_error(regs->ARM_r3, &sc->arm_r3, err);
-	__put_user_error(regs->ARM_r4, &sc->arm_r4, err);
-	__put_user_error(regs->ARM_r5, &sc->arm_r5, err);
-	__put_user_error(regs->ARM_r6, &sc->arm_r6, err);
-	__put_user_error(regs->ARM_r7, &sc->arm_r7, err);
-	__put_user_error(regs->ARM_r8, &sc->arm_r8, err);
-	__put_user_error(regs->ARM_r9, &sc->arm_r9, err);
-	__put_user_error(regs->ARM_r10, &sc->arm_r10, err);
-	__put_user_error(regs->ARM_fp, &sc->arm_fp, err);
-	__put_user_error(regs->ARM_ip, &sc->arm_ip, err);
-	__put_user_error(regs->ARM_sp, &sc->arm_sp, err);
-	__put_user_error(regs->ARM_lr, &sc->arm_lr, err);
-	__put_user_error(regs->ARM_pc, &sc->arm_pc, err);
-	__put_user_error(regs->ARM_cpsr, &sc->arm_cpsr, err);
-
-	__put_user_error(current->thread.trap_no, &sc->trap_no, err);
-	__put_user_error(current->thread.error_code, &sc->error_code, err);
-	__put_user_error(current->thread.address, &sc->fault_address, err);
-	__put_user_error(mask, &sc->oldmask, err);
+	__put_user_error(regs->ARM_r0, &sf->uc.uc_mcontext.arm_r0, err);
+	__put_user_error(regs->ARM_r1, &sf->uc.uc_mcontext.arm_r1, err);
+	__put_user_error(regs->ARM_r2, &sf->uc.uc_mcontext.arm_r2, err);
+	__put_user_error(regs->ARM_r3, &sf->uc.uc_mcontext.arm_r3, err);
+	__put_user_error(regs->ARM_r4, &sf->uc.uc_mcontext.arm_r4, err);
+	__put_user_error(regs->ARM_r5, &sf->uc.uc_mcontext.arm_r5, err);
+	__put_user_error(regs->ARM_r6, &sf->uc.uc_mcontext.arm_r6, err);
+	__put_user_error(regs->ARM_r7, &sf->uc.uc_mcontext.arm_r7, err);
+	__put_user_error(regs->ARM_r8, &sf->uc.uc_mcontext.arm_r8, err);
+	__put_user_error(regs->ARM_r9, &sf->uc.uc_mcontext.arm_r9, err);
+	__put_user_error(regs->ARM_r10, &sf->uc.uc_mcontext.arm_r10, err);
+	__put_user_error(regs->ARM_fp, &sf->uc.uc_mcontext.arm_fp, err);
+	__put_user_error(regs->ARM_ip, &sf->uc.uc_mcontext.arm_ip, err);
+	__put_user_error(regs->ARM_sp, &sf->uc.uc_mcontext.arm_sp, err);
+	__put_user_error(regs->ARM_lr, &sf->uc.uc_mcontext.arm_lr, err);
+	__put_user_error(regs->ARM_pc, &sf->uc.uc_mcontext.arm_pc, err);
+	__put_user_error(regs->ARM_cpsr, &sf->uc.uc_mcontext.arm_cpsr, err);
+
+	__put_user_error(current->thread.trap_no, &sf->uc.uc_mcontext.trap_no, err);
+	__put_user_error(current->thread.error_code, &sf->uc.uc_mcontext.error_code, err);
+	__put_user_error(current->thread.address, &sf->uc.uc_mcontext.fault_address, err);
+	__put_user_error(set->sig[0], &sf->uc.uc_mcontext.oldmask, err);
+
+	err |= __copy_to_user(&sf->uc.uc_sigmask, set, sizeof(*set));
 
 #ifdef CONFIG_IWMMXT
 	if (err == 0 && test_thread_flag(TIF_USING_IWMMXT))
-		err |= preserve_iwmmxt_context(&aux->iwmmxt);
+		err |= preserve_iwmmxt_context(&sf->aux.iwmmxt);
 #endif
 #ifdef CONFIG_VFP
 //	if (err == 0)
-//		err |= vfp_save_state(&aux->vfp);
+//		err |= vfp_save_state(&sf->aux.vfp);
 #endif
 
 	return err;
@@ -469,9 +470,7 @@ setup_frame(int usig, struct k_sigaction *ka, sigset_t *set, struct pt_regs *reg
 	if (!frame)
 		return 1;
 
-	err |= setup_sigcontext(&frame->uc.uc_mcontext, &frame->aux, regs, set->sig[0]);
-	err |= __copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set));
-
+	err |= setup_sigframe(frame, regs, set);
 	if (err == 0)
 		err = setup_return(regs, ka, frame->retcode, frame, usig);
 
@@ -500,10 +499,7 @@ setup_rt_frame(int usig, struct k_sigaction *ka, siginfo_t *info,
 	stack.ss_size = current->sas_ss_size;
 	err |= __copy_to_user(&frame->sig.uc.uc_stack, &stack, sizeof(stack));
 
-	err |= setup_sigcontext(&frame->sig.uc.uc_mcontext, &frame->sig.aux,
-				regs, set->sig[0]);
-	err |= __copy_to_user(&frame->sig.uc.uc_sigmask, set, sizeof(*set));
-
+	err |= setup_sigframe(&frame->sig, regs, set);
 	if (err == 0)
 		err = setup_return(regs, ka, frame->sig.retcode, frame, usig);
 
-- 
cgit v1.1


From 3da4bd2bfc672a484d2a5df9f89b79f5e1e634dc Mon Sep 17 00:00:00 2001
From: Lennert Buytenhek <buytenh@wantstofly.org>
Date: Sat, 24 Jun 2006 09:57:13 +0100
Subject: [ARM] 3632/1: iwmmxt: fix up argument comment for
 iwmmxt_task_restore()

Patch from Lennert Buytenhek

Commit d6551e884cf66de072b81f8b6d23259462c40baf forgot to update the
description of what goes into r2 when calling iwmmxt_task_restore().

Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/kernel/iwmmxt.S | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/arm/kernel/iwmmxt.S b/arch/arm/kernel/iwmmxt.S
index af9e0ae..a3bae95 100644
--- a/arch/arm/kernel/iwmmxt.S
+++ b/arch/arm/kernel/iwmmxt.S
@@ -273,7 +273,7 @@ ENTRY(iwmmxt_task_restore)
  *
  * r0 = previous task_struct pointer (must be preserved)
  * r1 = previous thread_info pointer
- * r2 = next thread_info.cpu_domain pointer (must be preserved)
+ * r2 = next thread_info pointer (must be preserved)
  *
  * Called only from __switch_to with task preemption disabled.
  * No need to care about preserving r4 and above.
-- 
cgit v1.1


From 1d81eedb8f6c13c262a70b8167530ec24b09c0ff Mon Sep 17 00:00:00 2001
From: Lennert Buytenhek <buytenh@wantstofly.org>
Date: Sat, 24 Jun 2006 10:33:02 +0100
Subject: [ARM] 3634/1: ep93xx: initial implementation of the clk_* API

Patch from Lennert Buytenhek

Add an initial implementation of the clk_* API for the cirrus ep93xx
to the tree.  The initial implementation is somewhat minimal, with the
intention of extending it as we go along.

Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-ep93xx/Makefile |   2 +-
 arch/arm/mach-ep93xx/clock.c  | 156 ++++++++++++++++++++++++++++++++++++++++++
 arch/arm/mach-ep93xx/core.c   |   2 +
 3 files changed, 159 insertions(+), 1 deletion(-)
 create mode 100644 arch/arm/mach-ep93xx/clock.c

(limited to 'arch')

diff --git a/arch/arm/mach-ep93xx/Makefile b/arch/arm/mach-ep93xx/Makefile
index 5393af9..05a48a2 100644
--- a/arch/arm/mach-ep93xx/Makefile
+++ b/arch/arm/mach-ep93xx/Makefile
@@ -1,7 +1,7 @@
 #
 # Makefile for the linux kernel.
 #
-obj-y			:= core.o
+obj-y			:= core.o clock.o
 obj-m			:=
 obj-n			:=
 obj-			:=
diff --git a/arch/arm/mach-ep93xx/clock.c b/arch/arm/mach-ep93xx/clock.c
new file mode 100644
index 0000000..08ad782
--- /dev/null
+++ b/arch/arm/mach-ep93xx/clock.c
@@ -0,0 +1,156 @@
+/*
+ * arch/arm/mach-ep93xx/clock.c
+ * Clock control for Cirrus EP93xx chips.
+ *
+ * Copyright (C) 2006 Lennert Buytenhek <buytenh@wantstofly.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or (at
+ * your option) any later version.
+ */
+
+#include <linux/kernel.h>
+#include <linux/clk.h>
+#include <linux/err.h>
+#include <linux/string.h>
+#include <asm/div64.h>
+#include <asm/hardware.h>
+#include <asm/io.h>
+
+struct clk {
+	char		*name;
+	unsigned long	rate;
+	int		users;
+	u32		enable_reg;
+	u32		enable_mask;
+};
+
+static struct clk clk_pll1 = {
+	.name		= "pll1",
+};
+static struct clk clk_f = {
+	.name		= "fclk",
+};
+static struct clk clk_h = {
+	.name		= "hclk",
+};
+static struct clk clk_p = {
+	.name		= "pclk",
+};
+static struct clk clk_pll2 = {
+	.name		= "pll2",
+};
+static struct clk clk_usb_host = {
+	.name		= "usb_host",
+	.enable_reg	= EP93XX_SYSCON_CLOCK_CONTROL,
+	.enable_mask	= EP93XX_SYSCON_CLOCK_USH_EN,
+};
+
+
+static struct clk *clocks[] = {
+	&clk_pll1,
+	&clk_f,
+	&clk_h,
+	&clk_p,
+	&clk_pll2,
+	&clk_usb_host,
+};
+
+struct clk *clk_get(struct device *dev, const char *id)
+{
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(clocks); i++) {
+		if (!strcmp(clocks[i]->name, id))
+			return clocks[i];
+	}
+
+	return ERR_PTR(-ENOENT);
+}
+
+int clk_enable(struct clk *clk)
+{
+	if (!clk->users++ && clk->enable_reg) {
+		u32 value;
+
+		value = __raw_readl(clk->enable_reg);
+		__raw_writel(value | clk->enable_mask, clk->enable_reg);
+	}
+
+	return 0;
+}
+
+void clk_disable(struct clk *clk)
+{
+	if (!--clk->users && clk->enable_reg) {
+		u32 value;
+
+		value = __raw_readl(clk->enable_reg);
+		__raw_writel(value & ~clk->enable_mask, clk->enable_reg);
+	}
+}
+
+unsigned long clk_get_rate(struct clk *clk)
+{
+	return clk->rate;
+}
+
+void clk_put(struct clk *clk)
+{
+}
+
+
+
+static char fclk_divisors[] = { 1, 2, 4, 8, 16, 1, 1, 1 };
+static char hclk_divisors[] = { 1, 2, 4, 5, 6, 8, 16, 32 };
+static char pclk_divisors[] = { 1, 2, 4, 8 };
+
+/*
+ * PLL rate = 14.7456 MHz * (X1FBD + 1) * (X2FBD + 1) / (X2IPD + 1) / 2^PS
+ */
+static unsigned long calc_pll_rate(u32 config_word)
+{
+	unsigned long long rate;
+	int i;
+
+	rate = 14745600;
+	rate *= ((config_word >> 11) & 0x1f) + 1;		/* X1FBD */
+	rate *= ((config_word >> 5) & 0x3f) + 1;		/* X2FBD */
+	do_div(rate, (config_word & 0x1f) + 1);			/* X2IPD */
+	for (i = 0; i < ((config_word >> 16) & 3); i++)		/* PS */
+		rate >>= 1;
+
+	return (unsigned long)rate;
+}
+
+void ep93xx_clock_init(void)
+{
+	u32 value;
+
+	value = __raw_readl(EP93XX_SYSCON_CLOCK_SET1);
+	if (!(value & 0x00800000)) {			/* PLL1 bypassed?  */
+		clk_pll1.rate = 14745600;
+	} else {
+		clk_pll1.rate = calc_pll_rate(value);
+	}
+	clk_f.rate = clk_pll1.rate / fclk_divisors[(value >> 25) & 0x7];
+	clk_h.rate = clk_pll1.rate / hclk_divisors[(value >> 20) & 0x7];
+	clk_p.rate = clk_h.rate / pclk_divisors[(value >> 18) & 0x3];
+
+	value = __raw_readl(EP93XX_SYSCON_CLOCK_SET2);
+	if (!(value & 0x00080000)) {			/* PLL2 bypassed?  */
+		clk_pll2.rate = 14745600;
+	} else if (value & 0x00040000) {		/* PLL2 enabled?  */
+		clk_pll2.rate = calc_pll_rate(value);
+	} else {
+		clk_pll2.rate = 0;
+	}
+	clk_usb_host.rate = clk_pll2.rate / (((value >> 28) & 0xf) + 1);
+
+	printk(KERN_INFO "ep93xx: PLL1 running at %ld MHz, PLL2 at %ld MHz\n",
+		clk_pll1.rate / 1000000, clk_pll2.rate / 1000000);
+	printk(KERN_INFO "ep93xx: FCLK %ld MHz, HCLK %ld MHz, PCLK %ld MHz\n",
+		clk_f.rate / 1000000, clk_h.rate / 1000000,
+		clk_p.rate / 1000000);
+}
diff --git a/arch/arm/mach-ep93xx/core.c b/arch/arm/mach-ep93xx/core.c
index bf6bd71..6fd6aa7 100644
--- a/arch/arm/mach-ep93xx/core.c
+++ b/arch/arm/mach-ep93xx/core.c
@@ -437,6 +437,8 @@ void __init ep93xx_init_devices(void)
 {
 	unsigned int v;
 
+	ep93xx_clock_init();
+
 	/*
 	 * Disallow access to MaverickCrunch initially.
 	 */
-- 
cgit v1.1


From 1f64eb379cfc95d5f627b779685f7ac6721df322 Mon Sep 17 00:00:00 2001
From: Lennert Buytenhek <buytenh@wantstofly.org>
Date: Sat, 24 Jun 2006 10:33:03 +0100
Subject: [ARM] 3646/1: ep93xx: instantiate ep93xx-ohci platform device

Patch from Lennert Buytenhek

The ep93xx ohci bits have been merged into the gregkh-2.6 tree, which
means that they will probably go upstream soon, so make the core ep93xx
code instantiate an appropriate ep93xx-ohci platform device.

Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-ep93xx/core.c | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)

(limited to 'arch')

diff --git a/arch/arm/mach-ep93xx/core.c b/arch/arm/mach-ep93xx/core.c
index 6fd6aa7..1fe73c0 100644
--- a/arch/arm/mach-ep93xx/core.c
+++ b/arch/arm/mach-ep93xx/core.c
@@ -433,6 +433,31 @@ static struct platform_device ep93xx_rtc_device = {
 };
 
 
+static struct resource ep93xx_ohci_resources[] = {
+	[0] = {
+		.start	= EP93XX_USB_PHYS_BASE,
+		.end	= EP93XX_USB_PHYS_BASE + 0x0fff,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= IRQ_EP93XX_USB,
+		.end	= IRQ_EP93XX_USB,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device ep93xx_ohci_device = {
+	.name		= "ep93xx-ohci",
+	.id		= -1,
+	.dev		= {
+		.dma_mask		= (void *)0xffffffff,
+		.coherent_dma_mask	= 0xffffffff,
+	},
+	.num_resources	= ARRAY_SIZE(ep93xx_ohci_resources),
+	.resource	= ep93xx_ohci_resources,
+};
+
+
 void __init ep93xx_init_devices(void)
 {
 	unsigned int v;
@@ -452,4 +477,5 @@ void __init ep93xx_init_devices(void)
 	amba_device_register(&uart3_device, &iomem_resource);
 
 	platform_device_register(&ep93xx_rtc_device);
+	platform_device_register(&ep93xx_ohci_device);
 }
-- 
cgit v1.1


From fc8ea7a1eae3034505f70f02981d33bbc1284a86 Mon Sep 17 00:00:00 2001
From: Lennert Buytenhek <buytenh@wantstofly.org>
Date: Sat, 24 Jun 2006 09:57:14 +0100
Subject: [ARM] 3644/1: ixp2000: export gpio_line_config()

Patch from Lennert Buytenhek

Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-ixp2000/core.c | 1 +
 1 file changed, 1 insertion(+)

(limited to 'arch')

diff --git a/arch/arm/mach-ixp2000/core.c b/arch/arm/mach-ixp2000/core.c
index 186f632..ebe4391 100644
--- a/arch/arm/mach-ixp2000/core.c
+++ b/arch/arm/mach-ixp2000/core.c
@@ -302,6 +302,7 @@ void gpio_line_config(int line, int direction)
 	}
 	local_irq_restore(flags);
 }
+EXPORT_SYMBOL(gpio_line_config);
 
 
 /*************************************************************************
-- 
cgit v1.1


From a3ff55026e59687040f00fc35680fc0e774859f4 Mon Sep 17 00:00:00 2001
From: Ben Dooks <ben-linux@fluff.org>
Date: Sat, 24 Jun 2006 21:21:26 +0100
Subject: [ARM] 3633/1: S3C24XX: s3c2410 gpio bugfix - wrong pin nos

Patch from Ben Dooks

The s3c2410 gpio functions have a pair of bugs where
the code is using the pin function definitions instead
of the pin gpio numbers.

Also remove the changelog

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-s3c2410/s3c2410-gpio.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

(limited to 'arch')

diff --git a/arch/arm/mach-s3c2410/s3c2410-gpio.c b/arch/arm/mach-s3c2410/s3c2410-gpio.c
index d5e1cae..17519b3 100644
--- a/arch/arm/mach-s3c2410/s3c2410-gpio.c
+++ b/arch/arm/mach-s3c2410/s3c2410-gpio.c
@@ -18,9 +18,6 @@
  * You should have received a copy of the GNU General Public License
  * along with this program; if not, write to the Free Software
  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
- *
- * Changelog
- *	15-Jan-2006  LCVR  Splitted from gpio.c
  */
 
 #include <linux/kernel.h>
@@ -47,7 +44,7 @@ int s3c2410_gpio_irqfilter(unsigned int pin, unsigned int on,
 
 	config &= 0xff;
 
-	pin -= S3C2410_GPG8_EINT16;
+	pin -= S3C2410_GPG8;
 	reg += pin & ~3;
 
 	local_irq_save(flags);
@@ -75,7 +72,7 @@ EXPORT_SYMBOL(s3c2410_gpio_irqfilter);
 
 int s3c2410_gpio_getirq(unsigned int pin)
 {
-	if (pin < S3C2410_GPF0 || pin > S3C2410_GPG15_EINT23)
+	if (pin < S3C2410_GPF0 || pin > S3C2410_GPG15)
 		return -1;	/* not valid interrupts */
 
 	if (pin < S3C2410_GPG0 && pin > S3C2410_GPF7)
-- 
cgit v1.1


From 68d9ab394f06f95fd4ca612c08edf13e410fd8d0 Mon Sep 17 00:00:00 2001
From: Ben Dooks <ben-linux@fluff.org>
Date: Sat, 24 Jun 2006 21:21:27 +0100
Subject: [ARM] 3635/1: S3C24XX: Add S3C2412 core cpu support

Patch from Ben Dooks

Add support for the Samsung S3C2412 and S3C2413 range
of SoCs. This patch contains the core identification,
debug macros, and basic register updates to get these
to build.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-s3c2410/Kconfig   |  14 +++
 arch/arm/mach-s3c2410/Makefile  |   4 +
 arch/arm/mach-s3c2410/cpu.c     |  37 +++++++-
 arch/arm/mach-s3c2410/cpu.h     |   1 +
 arch/arm/mach-s3c2410/s3c2412.c | 195 ++++++++++++++++++++++++++++++++++++++++
 arch/arm/mach-s3c2410/s3c2412.h |  29 ++++++
 6 files changed, 277 insertions(+), 3 deletions(-)
 create mode 100644 arch/arm/mach-s3c2410/s3c2412.c
 create mode 100644 arch/arm/mach-s3c2410/s3c2412.h

(limited to 'arch')

diff --git a/arch/arm/mach-s3c2410/Kconfig b/arch/arm/mach-s3c2410/Kconfig
index 7b786d7..b61af3a 100644
--- a/arch/arm/mach-s3c2410/Kconfig
+++ b/arch/arm/mach-s3c2410/Kconfig
@@ -127,6 +127,20 @@ config CPU_S3C2410
 	  Support for S3C2410 and S3C2410A family from the S3C24XX line
 	  of Samsung Mobile CPUs.
 
+# internal node to signify if we are only dealing with an S3C2412
+
+config CPU_S3C2412_ONLY
+	bool
+	depends on ARCH_S3C2410 && !CPU_S3C2400 && !CPU_S3C2410 && \
+		   !CPU_S3C2440 && !CPU_S3C2442 && CPU_S3C2412
+	default y if CPU_S3C2412
+
+config CPU_S3C2412
+	bool
+	depends on ARCH_S3C2410
+	help
+	  Support for the S3C2412 and S3C2413 SoCs from the S3C24XX line
+
 config CPU_S3C244X
 	bool
 	depends on ARCH_S3C2410 && (CPU_S3C2440 || CPU_S3C2442)
diff --git a/arch/arm/mach-s3c2410/Makefile b/arch/arm/mach-s3c2410/Makefile
index 372dbce..86219c6 100644
--- a/arch/arm/mach-s3c2410/Makefile
+++ b/arch/arm/mach-s3c2410/Makefile
@@ -24,6 +24,10 @@ obj-$(CONFIG_S3C2410_DMA)  += dma.o
 obj-$(CONFIG_PM)	   += pm.o sleep.o
 obj-$(CONFIG_PM_SIMTEC)	   += pm-simtec.o
 
+# S3C2412 support
+obj-$(CONFIG_CPU_S3C2412)  += s3c2412.o
+
+#
 # S3C244X support
 
 obj-$(CONFIG_CPU_S3C244X)  += s3c244x.o
diff --git a/arch/arm/mach-s3c2410/cpu.c b/arch/arm/mach-s3c2410/cpu.c
index 52842e6..1c3c6ad 100644
--- a/arch/arm/mach-s3c2410/cpu.c
+++ b/arch/arm/mach-s3c2410/cpu.c
@@ -44,6 +44,7 @@
 #include "clock.h"
 #include "s3c2400.h"
 #include "s3c2410.h"
+#include "s3c2412.h"
 #include "s3c244x.h"
 #include "s3c2440.h"
 #include "s3c2442.h"
@@ -62,6 +63,7 @@ struct cpu_table {
 
 static const char name_s3c2400[]  = "S3C2400";
 static const char name_s3c2410[]  = "S3C2410";
+static const char name_s3c2412[]  = "S3C2412";
 static const char name_s3c2440[]  = "S3C2440";
 static const char name_s3c2442[]  = "S3C2442";
 static const char name_s3c2410a[] = "S3C2410A";
@@ -114,6 +116,15 @@ static struct cpu_table cpu_ids[] __initdata = {
 		.name		= name_s3c2442
 	},
 	{
+		.idcode		= 0x32412001,
+		.idmask		= 0xffffffff,
+		.map_io		= s3c2412_map_io,
+		.init_clocks	= s3c2412_init_clocks,
+		.init_uarts	= s3c2412_init_uarts,
+		.init		= s3c2412_init,
+		.name		= name_s3c2412,
+	},
+	{
 		.idcode		= 0x0,   /* S3C2400 doesn't have an idcode */
 		.idmask		= 0xffffffff,
 		.map_io		= s3c2400_map_io,
@@ -171,6 +182,24 @@ void s3c24xx_set_board(struct s3c24xx_board *b)
 
 static struct cpu_table *cpu;
 
+static unsigned long s3c24xx_read_idcode_v5(void)
+{
+#if defined(CONFIG_CPU_S3C2412) || defined(CONFIG_CPU_S3C2413)
+	return __raw_readl(S3C2412_GSTATUS1);
+#else
+	return 1UL;	/* don't look like an 2400 */
+#endif
+}
+
+static unsigned long s3c24xx_read_idcode_v4(void)
+{
+#ifndef CONFIG_CPU_S3C2400
+	return __raw_readl(S3C2410_GSTATUS1);
+#else
+	return 0UL;
+#endif
+}
+
 void __init s3c24xx_init_io(struct map_desc *mach_desc, int size)
 {
 	unsigned long idcode = 0x0;
@@ -178,9 +207,11 @@ void __init s3c24xx_init_io(struct map_desc *mach_desc, int size)
 	/* initialise the io descriptors we need for initialisation */
 	iotable_init(s3c_iodesc, ARRAY_SIZE(s3c_iodesc));
 
-#ifndef CONFIG_CPU_S3C2400
-	idcode = __raw_readl(S3C2410_GSTATUS1);
-#endif
+	if (cpu_architecture() >= CPU_ARCH_ARMv5) {
+		idcode = s3c24xx_read_idcode_v5();
+	} else {
+		idcode = s3c24xx_read_idcode_v4();
+	}
 
 	cpu = s3c_lookup_cpu(idcode);
 
diff --git a/arch/arm/mach-s3c2410/cpu.h b/arch/arm/mach-s3c2410/cpu.h
index 21c62dc..b0ed9d2 100644
--- a/arch/arm/mach-s3c2410/cpu.h
+++ b/arch/arm/mach-s3c2410/cpu.h
@@ -74,5 +74,6 @@ extern struct sys_timer s3c24xx_timer;
 /* system device classes */
 
 extern struct sysdev_class s3c2410_sysclass;
+extern struct sysdev_class s3c2412_sysclass;
 extern struct sysdev_class s3c2440_sysclass;
 extern struct sysdev_class s3c2442_sysclass;
diff --git a/arch/arm/mach-s3c2410/s3c2412.c b/arch/arm/mach-s3c2410/s3c2412.c
new file mode 100644
index 0000000..e24ffd5
--- /dev/null
+++ b/arch/arm/mach-s3c2410/s3c2412.c
@@ -0,0 +1,195 @@
+/* linux/arch/arm/mach-s3c2410/s3c2412.c
+ *
+ * Copyright (c) 2006 Simtec Electronics
+ *	Ben Dooks <ben@simtec.co.uk>
+ *
+ * http://armlinux.simtec.co.uk/.
+ *
+ * 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.
+ *
+ * Modifications:
+ *     16-May-2003 BJD  Created initial version
+ *     16-Aug-2003 BJD  Fixed header files and copyright, added URL
+ *     05-Sep-2003 BJD  Moved to kernel v2.6
+ *     18-Jan-2004 BJD  Added serial port configuration
+ *     21-Aug-2004 BJD  Added new struct s3c2410_board handler
+ *     28-Sep-2004 BJD  Updates for new serial port bits
+ *     04-Nov-2004 BJD  Updated UART configuration process
+ *     10-Jan-2005 BJD  Removed s3c2410_clock_tick_rate
+ *     13-Aug-2005 DA   Removed UART from initial I/O mappings
+*/
+
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/interrupt.h>
+#include <linux/list.h>
+#include <linux/timer.h>
+#include <linux/init.h>
+#include <linux/sysdev.h>
+#include <linux/platform_device.h>
+
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+#include <asm/mach/irq.h>
+
+#include <asm/hardware.h>
+#include <asm/io.h>
+#include <asm/irq.h>
+
+#include <asm/arch/regs-clock.h>
+#include <asm/arch/regs-serial.h>
+#include <asm/arch/regs-gpio.h>
+#include <asm/arch/regs-gpioj.h>
+#include <asm/arch/regs-dsc.h>
+
+#include "s3c2412.h"
+#include "cpu.h"
+#include "devs.h"
+#include "clock.h"
+#include "pm.h"
+
+#ifndef CONFIG_CPU_S3C2412_ONLY
+void __iomem *s3c24xx_va_gpio2 = S3C24XX_VA_GPIO;
+#endif
+
+/* Initial IO mappings */
+
+static struct map_desc s3c2412_iodesc[] __initdata = {
+	IODESC_ENT(CLKPWR),
+	IODESC_ENT(LCD),
+	IODESC_ENT(TIMER),
+	IODESC_ENT(ADC),
+	IODESC_ENT(WATCHDOG),
+};
+
+/* uart registration process */
+
+void __init s3c2412_init_uarts(struct s3c2410_uartcfg *cfg, int no)
+{
+	s3c24xx_init_uartdevs("s3c2412-uart", s3c2410_uart_resources, cfg, no);
+
+	/* rename devices that are s3c2412/s3c2413 specific */
+	s3c_device_sdi.name  = "s3c2412-sdi";
+	s3c_device_nand.name = "s3c2412-nand";
+}
+
+/* s3c2412_map_io
+ *
+ * register the standard cpu IO areas, and any passed in from the
+ * machine specific initialisation.
+*/
+
+void __init s3c2412_map_io(struct map_desc *mach_desc, int mach_size)
+{
+	/* move base of IO */
+
+	s3c24xx_va_gpio2 = S3C24XX_VA_GPIO + 0x10;
+
+	/* register our io-tables */
+
+	iotable_init(s3c2412_iodesc, ARRAY_SIZE(s3c2412_iodesc));
+	iotable_init(mach_desc, mach_size);
+}
+
+void __init s3c2412_init_clocks(int xtal)
+{
+	unsigned long tmp;
+	unsigned long fclk;
+	unsigned long hclk;
+	unsigned long pclk;
+
+	/* now we've got our machine bits initialised, work out what
+	 * clocks we've got */
+
+	fclk = s3c2410_get_pll(__raw_readl(S3C2410_MPLLCON), xtal*2);
+
+	tmp = __raw_readl(S3C2410_CLKDIVN);
+
+	/* work out clock scalings */
+
+	hclk = fclk / ((tmp & S3C2412_CLKDIVN_HDIVN_MASK) + 1);
+	hclk /= ((tmp & S3C2421_CLKDIVN_ARMDIVN) ? 2 : 1);
+	pclk = hclk / ((tmp & S3C2412_CLKDIVN_PDIVN) ? 2 : 1);
+
+	/* print brieft summary of clocks, etc */
+
+	printk("S3C2412: core %ld.%03ld MHz, memory %ld.%03ld MHz, peripheral %ld.%03ld MHz\n",
+	       print_mhz(fclk), print_mhz(hclk), print_mhz(pclk));
+
+	/* initialise the clocks here, to allow other things like the
+	 * console to use them
+	 */
+
+	s3c24xx_setup_clocks(xtal, fclk, hclk, pclk);
+	s3c2412_baseclk_add();
+}
+
+/* need to register class before we actually register the device, and
+ * we also need to ensure that it has been initialised before any of the
+ * drivers even try to use it (even if not on an s3c2412 based system)
+ * as a driver which may support both 2410 and 2440 may try and use it.
+*/
+
+#ifdef CONFIG_PM
+static struct sleep_save s3c2412_sleep[] = {
+	SAVE_ITEM(S3C2412_DSC0),
+	SAVE_ITEM(S3C2412_DSC1),
+	SAVE_ITEM(S3C2413_GPJDAT),
+	SAVE_ITEM(S3C2413_GPJCON),
+	SAVE_ITEM(S3C2413_GPJUP),
+
+	/* save the sleep configuration anyway, just in case these
+	 * get damaged during wakeup */
+
+	SAVE_ITEM(S3C2412_GPBSLPCON),
+	SAVE_ITEM(S3C2412_GPCSLPCON),
+	SAVE_ITEM(S3C2412_GPDSLPCON),
+	SAVE_ITEM(S3C2412_GPESLPCON),
+	SAVE_ITEM(S3C2412_GPFSLPCON),
+	SAVE_ITEM(S3C2412_GPGSLPCON),
+	SAVE_ITEM(S3C2412_GPHSLPCON),
+	SAVE_ITEM(S3C2413_GPJSLPCON),
+};
+
+static int s3c2412_suspend(struct sys_device *dev, pm_message_t state)
+{
+	s3c2410_pm_do_save(s3c2412_sleep, ARRAY_SIZE(s3c2412_sleep));
+	return 0;
+}
+
+static int s3c2412_resume(struct sys_device *dev)
+{
+	s3c2410_pm_do_restore(s3c2412_sleep, ARRAY_SIZE(s3c2412_sleep));
+	return 0;
+}
+
+#else
+#define s3c2412_suspend NULL
+#define s3c2412_resume  NULL
+#endif
+
+struct sysdev_class s3c2412_sysclass = {
+	set_kset_name("s3c2412-core"),
+	.suspend	= s3c2412_suspend,
+	.resume		= s3c2412_resume
+};
+
+static int __init s3c2412_core_init(void)
+{
+	return sysdev_class_register(&s3c2412_sysclass);
+}
+
+core_initcall(s3c2412_core_init);
+
+static struct sys_device s3c2412_sysdev = {
+	.cls		= &s3c2412_sysclass,
+};
+
+int __init s3c2412_init(void)
+{
+	printk("S3C2412: Initialising architecture\n");
+
+	return sysdev_register(&s3c2412_sysdev);
+}
diff --git a/arch/arm/mach-s3c2410/s3c2412.h b/arch/arm/mach-s3c2410/s3c2412.h
new file mode 100644
index 0000000..c6e5603
--- /dev/null
+++ b/arch/arm/mach-s3c2410/s3c2412.h
@@ -0,0 +1,29 @@
+/* arch/arm/mach-s3c2410/s3c2412.h
+ *
+ * Copyright (c) 2006 Simtec Electronics
+ *	Ben Dooks <ben@simtec.co.uk>
+ *
+ * Header file for s3c2412 cpu support
+ *
+ * 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.
+*/
+
+#ifdef CONFIG_CPU_S3C2412
+
+extern  int s3c2412_init(void);
+
+extern void s3c2412_map_io(struct map_desc *mach_desc, int size);
+
+extern void s3c2412_init_uarts(struct s3c2410_uartcfg *cfg, int no);
+
+extern void s3c2412_init_clocks(int xtal);
+
+extern  int s3c2412_baseclk_add(void);
+#else
+#define s3c2412_init_clocks NULL
+#define s3c2412_init_uarts NULL
+#define s3c2412_map_io NULL
+#define s3c2412_init NULL
+#endif
-- 
cgit v1.1


From 3434d9d9fc0fec0b96ab128ee0d743b6a0d90160 Mon Sep 17 00:00:00 2001
From: Ben Dooks <ben-linux@fluff.org>
Date: Sat, 24 Jun 2006 21:21:28 +0100
Subject: [ARM] 3636/1: S3C2412: Add selection of CPU_ARM926

Patch from Ben Dooks

Select CONFIG_CPU_ARM926 when CONFIG_CPU_S3C2412 is
selected.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mm/Kconfig | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

(limited to 'arch')

diff --git a/arch/arm/mm/Kconfig b/arch/arm/mm/Kconfig
index 4221d05..ecf5e23 100644
--- a/arch/arm/mm/Kconfig
+++ b/arch/arm/mm/Kconfig
@@ -61,9 +61,9 @@ config CPU_ARM720T
 
 # ARM920T
 config CPU_ARM920T
-	bool "Support ARM920T processor" if !ARCH_S3C2410
-	depends on ARCH_EP93XX || ARCH_INTEGRATOR || ARCH_S3C2410 || ARCH_IMX || ARCH_AAEC2000 || ARCH_AT91RM9200
-	default y if ARCH_S3C2410 || ARCH_AT91RM9200
+	bool "Support ARM920T processor"
+	depends on ARCH_EP93XX || ARCH_INTEGRATOR || CPU_S3C2410 || CPU_S3C2440 || CPU_S3C2442 || ARCH_IMX || ARCH_AAEC2000 || ARCH_AT91RM9200
+	default y if CPU_S3C2410 || CPU_S3C2440 || CPU_S3C2442 || ARCH_AT91RM9200
 	select CPU_32v4
 	select CPU_ABRT_EV4T
 	select CPU_CACHE_V4WT
@@ -121,8 +121,8 @@ config CPU_ARM925T
 # ARM926T
 config CPU_ARM926T
 	bool "Support ARM926T processor"
-	depends on ARCH_INTEGRATOR || ARCH_VERSATILE_PB || MACH_VERSATILE_AB || ARCH_OMAP730 || ARCH_OMAP16XX || MACH_REALVIEW_EB || ARCH_PNX4008 || ARCH_NETX
-	default y if ARCH_VERSATILE_PB || MACH_VERSATILE_AB || ARCH_OMAP730 || ARCH_OMAP16XX || ARCH_PNX4008 || ARCH_NETX
+	depends on ARCH_INTEGRATOR || ARCH_VERSATILE_PB || MACH_VERSATILE_AB || ARCH_OMAP730 || ARCH_OMAP16XX || MACH_REALVIEW_EB || ARCH_PNX4008 || ARCH_NETX || CPU_S3C2412
+	default y if ARCH_VERSATILE_PB || MACH_VERSATILE_AB || ARCH_OMAP730 || ARCH_OMAP16XX || ARCH_PNX4008 || ARCH_NETX || CPU_S3C2412
 	select CPU_32v5
 	select CPU_ABRT_EV5TJ
 	select CPU_CACHE_VIVT
-- 
cgit v1.1


From 513846f82829efd5bab5359bdc33509e6386fd49 Mon Sep 17 00:00:00 2001
From: Ben Dooks <ben-linux@fluff.org>
Date: Sat, 24 Jun 2006 21:21:29 +0100
Subject: [ARM] 3637/1: S3C24XX: Add mpll clock, and set as fclk parent

Patch from Ben Dooks

Update the clocks with the MPLL clock, and
use it as the parent. Also export these to
the rest of arch/arm/mach-s3c2410

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-s3c2410/clock.c | 13 +++++++++++--
 arch/arm/mach-s3c2410/clock.h |  2 ++
 2 files changed, 13 insertions(+), 2 deletions(-)

(limited to 'arch')

diff --git a/arch/arm/mach-s3c2410/clock.c b/arch/arm/mach-s3c2410/clock.c
index c5c93c3..90a0610 100644
--- a/arch/arm/mach-s3c2410/clock.c
+++ b/arch/arm/mach-s3c2410/clock.c
@@ -213,7 +213,7 @@ EXPORT_SYMBOL(clk_set_parent);
 
 /* base clocks */
 
-static struct clk clk_xtal = {
+struct clk clk_xtal = {
 	.name		= "xtal",
 	.id		= -1,
 	.rate		= 0,
@@ -221,6 +221,11 @@ static struct clk clk_xtal = {
 	.ctrlbit	= 0,
 };
 
+struct clk clk_mpll = {
+	.name		= "mpll",
+	.id		= -1,
+};
+
 struct clk clk_upll = {
 	.name		= "upll",
 	.id		= -1,
@@ -232,7 +237,7 @@ struct clk clk_f = {
 	.name		= "fclk",
 	.id		= -1,
 	.rate		= 0,
-	.parent		= NULL,
+	.parent		= &clk_mpll,
 	.ctrlbit	= 0,
 };
 
@@ -413,6 +418,7 @@ int __init s3c24xx_setup_clocks(unsigned long xtal,
 	clk_xtal.rate = xtal;
 	clk_upll.rate = s3c2410_get_pll(__raw_readl(S3C2410_UPLLCON), xtal);
 
+	clk_mpll.rate = fclk;
 	clk_h.rate = hclk;
 	clk_p.rate = pclk;
 	clk_f.rate = fclk;
@@ -424,6 +430,9 @@ int __init s3c24xx_setup_clocks(unsigned long xtal,
 	if (s3c24xx_register_clock(&clk_xtal) < 0)
 		printk(KERN_ERR "failed to register master xtal\n");
 
+	if (s3c24xx_register_clock(&clk_mpll) < 0)
+		printk(KERN_ERR "failed to register mpll clock\n");
+
 	if (s3c24xx_register_clock(&clk_upll) < 0)
 		printk(KERN_ERR "failed to register upll clock\n");
 
diff --git a/arch/arm/mach-s3c2410/clock.h b/arch/arm/mach-s3c2410/clock.h
index 9456c81..7f0ea03 100644
--- a/arch/arm/mach-s3c2410/clock.h
+++ b/arch/arm/mach-s3c2410/clock.h
@@ -42,7 +42,9 @@ extern struct clk clk_usb_bus;
 extern struct clk clk_f;
 extern struct clk clk_h;
 extern struct clk clk_p;
+extern struct clk clk_mpll;
 extern struct clk clk_upll;
+extern struct clk clk_xtal;
 
 /* exports for arch/arm/mach-s3c2410
  *
-- 
cgit v1.1


From 736855f0c748dacb624070b8d6ffffe4532cf4dc Mon Sep 17 00:00:00 2001
From: Ben Dooks <ben-linux@fluff.org>
Date: Sat, 24 Jun 2006 21:21:31 +0100
Subject: [ARM] 3638/1: S3C2412: core clocks

Patch from Ben Dooks

Clock support for the clocks on the Samsung S3C2412
and S3C2413 SoCs. This provides clock enables and
parent selection for all the standard clocks.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-s3c2410/Makefile        |   1 +
 arch/arm/mach-s3c2410/s3c2412-clock.c | 711 ++++++++++++++++++++++++++++++++++
 2 files changed, 712 insertions(+)
 create mode 100644 arch/arm/mach-s3c2410/s3c2412-clock.c

(limited to 'arch')

diff --git a/arch/arm/mach-s3c2410/Makefile b/arch/arm/mach-s3c2410/Makefile
index 86219c6..d934a89 100644
--- a/arch/arm/mach-s3c2410/Makefile
+++ b/arch/arm/mach-s3c2410/Makefile
@@ -26,6 +26,7 @@ obj-$(CONFIG_PM_SIMTEC)	   += pm-simtec.o
 
 # S3C2412 support
 obj-$(CONFIG_CPU_S3C2412)  += s3c2412.o
+obj-$(CONFIG_CPU_S3C2412)  += s3c2412-clock.o
 
 #
 # S3C244X support
diff --git a/arch/arm/mach-s3c2410/s3c2412-clock.c b/arch/arm/mach-s3c2410/s3c2412-clock.c
new file mode 100644
index 0000000..c95ed3e
--- /dev/null
+++ b/arch/arm/mach-s3c2410/s3c2412-clock.c
@@ -0,0 +1,711 @@
+/* linux/arch/arm/mach-s3c2410/s3c2412-clock.c
+ *
+ * Copyright (c) 2006 Simtec Electronics
+ *	Ben Dooks <ben@simtec.co.uk>
+ *
+ * S3C2412,S3C2413 Clock control support
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+*/
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/list.h>
+#include <linux/errno.h>
+#include <linux/err.h>
+#include <linux/sysdev.h>
+#include <linux/clk.h>
+#include <linux/mutex.h>
+#include <linux/delay.h>
+
+#include <asm/hardware.h>
+#include <asm/io.h>
+
+#include <asm/arch/regs-clock.h>
+#include <asm/arch/regs-gpio.h>
+
+#include "clock.h"
+#include "cpu.h"
+
+/* We currently have to assume that the system is running
+ * from the XTPll input, and that all ***REFCLKs are being
+ * fed from it, as we cannot read the state of OM[4] from
+ * software.
+ *
+ * It would be possible for each board initialisation to
+ * set the correct muxing at initialisation
+*/
+
+int s3c2412_clkcon_enable(struct clk *clk, int enable)
+{
+	unsigned int clocks = clk->ctrlbit;
+	unsigned long clkcon;
+
+	clkcon = __raw_readl(S3C2410_CLKCON);
+
+	if (enable)
+		clkcon |= clocks;
+	else
+		clkcon &= ~clocks;
+
+	__raw_writel(clkcon, S3C2410_CLKCON);
+
+	return 0;
+}
+
+static int s3c2412_upll_enable(struct clk *clk, int enable)
+{
+	unsigned long upllcon = __raw_readl(S3C2410_UPLLCON);
+	unsigned long orig = upllcon;
+
+	if (!enable)
+		upllcon |= S3C2412_PLLCON_OFF;
+	else
+		upllcon &= ~S3C2412_PLLCON_OFF;
+
+	__raw_writel(upllcon, S3C2410_UPLLCON);
+
+	/* allow ~150uS for the PLL to settle and lock */
+
+	if (enable && (orig & S3C2412_PLLCON_OFF))
+		udelay(150);
+
+	return 0;
+}
+
+/* clock selections */
+
+/* CPU EXTCLK input */
+static struct clk clk_ext = {
+	.name		= "extclk",
+	.id		= -1,
+};
+
+static struct clk clk_erefclk = {
+	.name		= "erefclk",
+	.id		= -1,
+};
+
+static struct clk clk_urefclk = {
+	.name		= "urefclk",
+	.id		= -1,
+};
+
+static int s3c2412_setparent_usysclk(struct clk *clk, struct clk *parent)
+{
+	unsigned long clksrc = __raw_readl(S3C2412_CLKSRC);
+
+	if (parent == &clk_urefclk)
+		clksrc &= ~S3C2412_CLKSRC_USYSCLK_UPLL;
+	else if (parent == &clk_upll)
+		clksrc |= S3C2412_CLKSRC_USYSCLK_UPLL;
+	else
+		return -EINVAL;
+
+	clk->parent = parent;
+
+	__raw_writel(clksrc, S3C2412_CLKSRC);
+	return 0;
+}
+
+static struct clk clk_usysclk = {
+	.name		= "usysclk",
+	.id		= -1,
+	.parent		= &clk_xtal,
+	.set_parent	= s3c2412_setparent_usysclk,
+};
+
+static struct clk clk_mrefclk = {
+	.name		= "mrefclk",
+	.parent		= &clk_xtal,
+	.id		= -1,
+};
+
+static struct clk clk_mdivclk = {
+	.name		= "mdivclk",
+	.parent		= &clk_xtal,
+	.id		= -1,
+};
+
+static int s3c2412_setparent_usbsrc(struct clk *clk, struct clk *parent)
+{
+	unsigned long clksrc = __raw_readl(S3C2412_CLKSRC);
+
+	if (parent == &clk_usysclk)
+		clksrc &= ~S3C2412_CLKSRC_USBCLK_HCLK;
+	else if (parent == &clk_h)
+		clksrc |= S3C2412_CLKSRC_USBCLK_HCLK;
+	else
+		return -EINVAL;
+
+	clk->parent = parent;
+
+	__raw_writel(clksrc, S3C2412_CLKSRC);
+	return 0;
+}
+
+static unsigned long s3c2412_roundrate_usbsrc(struct clk *clk,
+					      unsigned long rate)
+{
+	unsigned long parent_rate = clk_get_rate(clk->parent);
+	int div;
+
+	if (rate > parent_rate)
+		return parent_rate;
+
+	div = parent_rate / rate;
+	if (div > 2)
+		div = 2;
+
+	return parent_rate / div;
+}
+
+static unsigned long s3c2412_getrate_usbsrc(struct clk *clk)
+{
+	unsigned long parent_rate = clk_get_rate(clk->parent);
+	unsigned long div = __raw_readl(S3C2410_CLKDIVN);
+
+	return parent_rate / ((div & S3C2412_CLKDIVN_USB48DIV) ? 2 : 1);
+}
+
+static int s3c2412_setrate_usbsrc(struct clk *clk, unsigned long rate)
+{
+	unsigned long parent_rate = clk_get_rate(clk->parent);
+	unsigned long clkdivn = __raw_readl(S3C2410_CLKDIVN);
+
+	rate = s3c2412_roundrate_usbsrc(clk, rate);
+
+	if ((parent_rate / rate) == 2)
+		clkdivn |= S3C2412_CLKDIVN_USB48DIV;
+	else
+		clkdivn &= ~S3C2412_CLKDIVN_USB48DIV;
+
+	__raw_writel(clkdivn, S3C2410_CLKDIVN);
+	return 0;
+}
+
+static struct clk clk_usbsrc = {
+	.name		= "usbsrc",
+	.id		= -1,
+	.get_rate	= s3c2412_getrate_usbsrc,
+	.set_rate	= s3c2412_setrate_usbsrc,
+	.round_rate	= s3c2412_roundrate_usbsrc,
+	.set_parent	= s3c2412_setparent_usbsrc,
+};
+
+static int s3c2412_setparent_msysclk(struct clk *clk, struct clk *parent)
+{
+	unsigned long clksrc = __raw_readl(S3C2412_CLKSRC);
+
+	if (parent == &clk_mdivclk)
+		clksrc &= ~S3C2412_CLKSRC_MSYSCLK_MPLL;
+	else if (parent == &clk_upll)
+		clksrc |= S3C2412_CLKSRC_MSYSCLK_MPLL;
+	else
+		return -EINVAL;
+
+	clk->parent = parent;
+
+	__raw_writel(clksrc, S3C2412_CLKSRC);
+	return 0;
+}
+
+static struct clk clk_msysclk = {
+	.name		= "msysclk",
+	.id		= -1,
+	.set_parent	= s3c2412_setparent_msysclk,
+};
+
+/* these next clocks have an divider immediately after them,
+ * so we can register them with their divider and leave out the
+ * intermediate clock stage
+*/
+static unsigned long s3c2412_roundrate_clksrc(struct clk *clk,
+					      unsigned long rate)
+{
+	unsigned long parent_rate = clk_get_rate(clk->parent);
+	int div;
+
+	if (rate > parent_rate)
+		return parent_rate;
+
+	/* note, we remove the +/- 1 calculations as they cancel out */
+
+	div = (rate / parent_rate);
+
+	if (div < 1)
+		div = 1;
+	else if (div > 16)
+		div = 16;
+
+	return parent_rate / div;
+}
+
+static int s3c2412_setparent_uart(struct clk *clk, struct clk *parent)
+{
+	unsigned long clksrc = __raw_readl(S3C2412_CLKSRC);
+
+	if (parent == &clk_erefclk)
+		clksrc &= ~S3C2412_CLKSRC_UARTCLK_MPLL;
+	else if (parent == &clk_mpll)
+		clksrc |= S3C2412_CLKSRC_UARTCLK_MPLL;
+	else
+		return -EINVAL;
+
+	clk->parent = parent;
+
+	__raw_writel(clksrc, S3C2412_CLKSRC);
+	return 0;
+}
+
+static unsigned long s3c2412_getrate_uart(struct clk *clk)
+{
+	unsigned long parent_rate = clk_get_rate(clk->parent);
+	unsigned long div = __raw_readl(S3C2410_CLKDIVN);
+
+	div &= S3C2412_CLKDIVN_UARTDIV_MASK;
+	div >>= S3C2412_CLKDIVN_UARTDIV_SHIFT;
+
+	return parent_rate / (div + 1);
+}
+
+static int s3c2412_setrate_uart(struct clk *clk, unsigned long rate)
+{
+	unsigned long parent_rate = clk_get_rate(clk->parent);
+	unsigned long clkdivn = __raw_readl(S3C2410_CLKDIVN);
+
+	rate = s3c2412_roundrate_clksrc(clk, rate);
+
+	clkdivn &= ~S3C2412_CLKDIVN_UARTDIV_MASK;
+	clkdivn |= ((parent_rate / rate) - 1) << S3C2412_CLKDIVN_UARTDIV_SHIFT;
+
+	__raw_writel(clkdivn, S3C2410_CLKDIVN);
+	return 0;
+}
+
+static struct clk clk_uart = {
+	.name		= "uartclk",
+	.id		= -1,
+	.get_rate	= s3c2412_getrate_uart,
+	.set_rate	= s3c2412_setrate_uart,
+	.set_parent	= s3c2412_setparent_uart,
+	.round_rate	= s3c2412_roundrate_clksrc,
+};
+
+static int s3c2412_setparent_i2s(struct clk *clk, struct clk *parent)
+{
+	unsigned long clksrc = __raw_readl(S3C2412_CLKSRC);
+
+	if (parent == &clk_erefclk)
+		clksrc &= ~S3C2412_CLKSRC_I2SCLK_MPLL;
+	else if (parent == &clk_mpll)
+		clksrc |= S3C2412_CLKSRC_I2SCLK_MPLL;
+	else
+		return -EINVAL;
+
+	clk->parent = parent;
+
+	__raw_writel(clksrc, S3C2412_CLKSRC);
+	return 0;
+}
+
+static unsigned long s3c2412_getrate_i2s(struct clk *clk)
+{
+	unsigned long parent_rate = clk_get_rate(clk->parent);
+	unsigned long div = __raw_readl(S3C2410_CLKDIVN);
+
+	div &= S3C2412_CLKDIVN_I2SDIV_MASK;
+	div >>= S3C2412_CLKDIVN_I2SDIV_SHIFT;
+
+	return parent_rate / (div + 1);
+}
+
+static int s3c2412_setrate_i2s(struct clk *clk, unsigned long rate)
+{
+	unsigned long parent_rate = clk_get_rate(clk->parent);
+	unsigned long clkdivn = __raw_readl(S3C2410_CLKDIVN);
+
+	rate = s3c2412_roundrate_clksrc(clk, rate);
+
+	clkdivn &= ~S3C2412_CLKDIVN_I2SDIV_MASK;
+	clkdivn |= ((parent_rate / rate) - 1) << S3C2412_CLKDIVN_I2SDIV_SHIFT;
+
+	__raw_writel(clkdivn, S3C2410_CLKDIVN);
+	return 0;
+}
+
+static struct clk clk_i2s = {
+	.name		= "i2sclk",
+	.id		= -1,
+	.get_rate	= s3c2412_getrate_i2s,
+	.set_rate	= s3c2412_setrate_i2s,
+	.set_parent	= s3c2412_setparent_i2s,
+	.round_rate	= s3c2412_roundrate_clksrc,
+};
+
+static int s3c2412_setparent_cam(struct clk *clk, struct clk *parent)
+{
+	unsigned long clksrc = __raw_readl(S3C2412_CLKSRC);
+
+	if (parent == &clk_usysclk)
+		clksrc &= ~S3C2412_CLKSRC_CAMCLK_HCLK;
+	else if (parent == &clk_h)
+		clksrc |= S3C2412_CLKSRC_CAMCLK_HCLK;
+	else
+		return -EINVAL;
+
+	clk->parent = parent;
+
+	__raw_writel(clksrc, S3C2412_CLKSRC);
+	return 0;
+}
+static unsigned long s3c2412_getrate_cam(struct clk *clk)
+{
+	unsigned long parent_rate = clk_get_rate(clk->parent);
+	unsigned long div = __raw_readl(S3C2410_CLKDIVN);
+
+	div &= S3C2412_CLKDIVN_CAMDIV_MASK;
+	div >>= S3C2412_CLKDIVN_CAMDIV_SHIFT;
+
+	return parent_rate / (div + 1);
+}
+
+static int s3c2412_setrate_cam(struct clk *clk, unsigned long rate)
+{
+	unsigned long parent_rate = clk_get_rate(clk->parent);
+	unsigned long clkdivn = __raw_readl(S3C2410_CLKDIVN);
+
+	rate = s3c2412_roundrate_clksrc(clk, rate);
+
+	clkdivn &= ~S3C2412_CLKDIVN_CAMDIV_MASK;
+	clkdivn |= ((parent_rate / rate) - 1) << S3C2412_CLKDIVN_CAMDIV_SHIFT;
+
+	__raw_writel(clkdivn, S3C2410_CLKDIVN);
+	return 0;
+}
+
+static struct clk clk_cam = {
+	.name		= "camif-upll",	/* same as 2440 name */
+	.id		= -1,
+	.get_rate	= s3c2412_getrate_cam,
+	.set_rate	= s3c2412_setrate_cam,
+	.set_parent	= s3c2412_setparent_cam,
+	.round_rate	= s3c2412_roundrate_clksrc,
+};
+
+/* standard clock definitions */
+
+static struct clk init_clocks_disable[] = {
+	{
+		.name		= "nand",
+		.id		= -1,
+		.parent		= &clk_h,
+		.enable		= s3c2412_clkcon_enable,
+		.ctrlbit	= S3C2412_CLKCON_NAND,
+	}, {
+		.name		= "sdi",
+		.id		= -1,
+		.parent		= &clk_p,
+		.enable		= s3c2412_clkcon_enable,
+		.ctrlbit	= S3C2412_CLKCON_SDI,
+	}, {
+		.name		= "adc",
+		.id		= -1,
+		.parent		= &clk_p,
+		.enable		= s3c2412_clkcon_enable,
+		.ctrlbit	= S3C2412_CLKCON_ADC,
+	}, {
+		.name		= "i2c",
+		.id		= -1,
+		.parent		= &clk_p,
+		.enable		= s3c2412_clkcon_enable,
+		.ctrlbit	= S3C2412_CLKCON_IIC,
+	}, {
+		.name		= "iis",
+		.id		= -1,
+		.parent		= &clk_p,
+		.enable		= s3c2412_clkcon_enable,
+		.ctrlbit	= S3C2412_CLKCON_IIS,
+	}, {
+		.name		= "spi",
+		.id		= -1,
+		.parent		= &clk_p,
+		.enable		= s3c2412_clkcon_enable,
+		.ctrlbit	= S3C2412_CLKCON_SPI,
+	}
+};
+
+static struct clk init_clocks[] = {
+	{
+		.name		= "dma",
+		.id		= 0,
+		.parent		= &clk_h,
+		.enable		= s3c2412_clkcon_enable,
+		.ctrlbit	= S3C2412_CLKCON_DMA0,
+	}, {
+		.name		= "dma",
+		.id		= 1,
+		.parent		= &clk_h,
+		.enable		= s3c2412_clkcon_enable,
+		.ctrlbit	= S3C2412_CLKCON_DMA1,
+	}, {
+		.name		= "dma",
+		.id		= 2,
+		.parent		= &clk_h,
+		.enable		= s3c2412_clkcon_enable,
+		.ctrlbit	= S3C2412_CLKCON_DMA2,
+	}, {
+		.name		= "dma",
+		.id		= 3,
+		.parent		= &clk_h,
+		.enable		= s3c2412_clkcon_enable,
+		.ctrlbit	= S3C2412_CLKCON_DMA3,
+	}, {
+		.name		= "lcd",
+		.id		= -1,
+		.parent		= &clk_h,
+		.enable		= s3c2412_clkcon_enable,
+		.ctrlbit	= S3C2412_CLKCON_LCDC,
+	}, {
+		.name		= "gpio",
+		.id		= -1,
+		.parent		= &clk_p,
+		.enable		= s3c2412_clkcon_enable,
+		.ctrlbit	= S3C2412_CLKCON_GPIO,
+	}, {
+		.name		= "usb-host",
+		.id		= -1,
+		.parent		= &clk_h,
+		.enable		= s3c2412_clkcon_enable,
+		.ctrlbit	= S3C2412_CLKCON_USBH,
+	}, {
+		.name		= "usb-device",
+		.id		= -1,
+		.parent		= &clk_h,
+		.enable		= s3c2412_clkcon_enable,
+		.ctrlbit	= S3C2412_CLKCON_USBD,
+	}, {
+		.name		= "timers",
+		.id		= -1,
+		.parent		= &clk_p,
+		.enable		= s3c2412_clkcon_enable,
+		.ctrlbit	= S3C2412_CLKCON_PWMT,
+	}, {
+		.name		= "uart",
+		.id		= 0,
+		.parent		= &clk_p,
+		.enable		= s3c2412_clkcon_enable,
+		.ctrlbit	= S3C2412_CLKCON_UART0,
+	}, {
+		.name		= "uart",
+		.id		= 1,
+		.parent		= &clk_p,
+		.enable		= s3c2412_clkcon_enable,
+		.ctrlbit	= S3C2412_CLKCON_UART1,
+	}, {
+		.name		= "uart",
+		.id		= 2,
+		.parent		= &clk_p,
+		.enable		= s3c2412_clkcon_enable,
+		.ctrlbit	= S3C2412_CLKCON_UART2,
+	}, {
+		.name		= "rtc",
+		.id		= -1,
+		.parent		= &clk_p,
+		.enable		= s3c2412_clkcon_enable,
+		.ctrlbit	= S3C2412_CLKCON_RTC,
+	}, {
+		.name		= "watchdog",
+		.id		= -1,
+		.parent		= &clk_p,
+		.ctrlbit	= 0,
+	}, {
+		.name		= "usb-bus-gadget",
+		.id		= -1,
+		.parent		= &clk_usb_bus,
+		.enable		= s3c2412_clkcon_enable,
+		.ctrlbit	= S3C2412_CLKCON_USB_DEV48,
+	}, {
+		.name		= "usb-bus-host",
+		.id		= -1,
+		.parent		= &clk_usb_bus,
+		.enable		= s3c2412_clkcon_enable,
+		.ctrlbit	= S3C2412_CLKCON_USB_HOST48,
+	}
+};
+
+/* clocks to add where we need to check their parentage */
+
+struct clk_init {
+	struct clk	*clk;
+	unsigned int	 bit;
+	struct clk	*src_0;
+	struct clk	*src_1;
+};
+
+struct clk_init clks_src[] __initdata = {
+	{
+		.clk	= &clk_usysclk,
+		.bit	= S3C2412_CLKSRC_USBCLK_HCLK,
+		.src_0	= &clk_urefclk,
+		.src_1	= &clk_upll,
+	}, {
+		.clk	= &clk_i2s,
+		.bit	= S3C2412_CLKSRC_I2SCLK_MPLL,
+		.src_0	= &clk_erefclk,
+		.src_1	= &clk_mpll,
+	}, {
+		.clk	= &clk_cam,
+		.bit	= S3C2412_CLKSRC_CAMCLK_HCLK,
+		.src_0	= &clk_usysclk,
+		.src_1	= &clk_h,
+	}, {
+		.clk	= &clk_msysclk,
+		.bit	= S3C2412_CLKSRC_MSYSCLK_MPLL,
+		.src_0	= &clk_mdivclk,
+		.src_1	= &clk_mpll,
+	}, {
+		.clk	= &clk_uart,
+		.bit	= S3C2412_CLKSRC_UARTCLK_MPLL,
+		.src_0	= &clk_erefclk,
+		.src_1	= &clk_mpll,
+	}, {
+		.clk	= &clk_usbsrc,
+		.bit	= S3C2412_CLKSRC_USBCLK_HCLK,
+		.src_0	= &clk_usysclk,
+		.src_1	= &clk_h,
+	},
+};
+
+/* s3c2412_clk_initparents
+ *
+ * Initialise the parents for the clocks that we get at start-time
+*/
+
+static void __init s3c2412_clk_initparents(void)
+{
+	unsigned long clksrc = __raw_readl(S3C2412_CLKSRC);
+	struct clk_init *cip = clks_src;
+	struct clk *src;
+	int ptr;
+	int ret;
+
+	for (ptr = 0; ptr < ARRAY_SIZE(clks_src); ptr++, cip++) {
+		ret = s3c24xx_register_clock(cip->clk);
+		if (ret < 0) {
+			printk(KERN_ERR "Failed to register clock %s (%d)\n",
+			       cip->clk->name, ret);
+		}
+
+		src = (clksrc & cip->bit) ? cip->src_1 : cip->src_0;
+
+		printk(KERN_INFO "%s: parent %s\n", cip->clk->name, src->name);
+		clk_set_parent(cip->clk, src);
+	}
+}
+
+/* clocks to add straight away */
+
+struct clk *clks[] __initdata = {
+	&clk_ext,
+	&clk_usb_bus,
+	&clk_erefclk,
+	&clk_urefclk,
+	&clk_mrefclk,
+};
+
+int __init s3c2412_baseclk_add(void)
+{
+	unsigned long clkcon  = __raw_readl(S3C2410_CLKCON);
+	struct clk *clkp;
+	int ret;
+	int ptr;
+
+	clk_upll.enable = s3c2412_upll_enable;
+	clk_usb_bus.parent = &clk_usbsrc;
+	clk_usb_bus.rate = 0x0;
+
+	s3c2412_clk_initparents();
+
+	for (ptr = 0; ptr < ARRAY_SIZE(clks); ptr++) {
+		clkp = clks[ptr];
+
+		ret = s3c24xx_register_clock(clkp);
+		if (ret < 0) {
+			printk(KERN_ERR "Failed to register clock %s (%d)\n",
+			       clkp->name, ret);
+		}
+	}
+
+	/* ensure usb bus clock is within correct rate of 48MHz */
+
+	if (clk_get_rate(&clk_usb_bus) != (48 * 1000 * 1000)) {
+		printk(KERN_INFO "Warning: USB bus clock not at 48MHz\n");
+
+		/* for the moment, let's use the UPLL, and see if we can
+		 * get 48MHz */
+
+		clk_set_parent(&clk_usysclk, &clk_upll);
+		clk_set_parent(&clk_usbsrc, &clk_usysclk);
+		clk_set_rate(&clk_usbsrc, 48*1000*1000);
+	}
+
+	printk("S3C2412: upll %s, %ld.%03ld MHz, usb-bus %ld.%03ld MHz\n",
+	       (__raw_readl(S3C2410_UPLLCON) & S3C2412_PLLCON_OFF) ? "off":"on",
+	       print_mhz(clk_get_rate(&clk_upll)),
+	       print_mhz(clk_get_rate(&clk_usb_bus)));
+
+	/* register clocks from clock array */
+
+	clkp = init_clocks;
+	for (ptr = 0; ptr < ARRAY_SIZE(init_clocks); ptr++, clkp++) {
+		/* ensure that we note the clock state */
+
+		clkp->usage = clkcon & clkp->ctrlbit ? 1 : 0;
+
+		ret = s3c24xx_register_clock(clkp);
+		if (ret < 0) {
+			printk(KERN_ERR "Failed to register clock %s (%d)\n",
+			       clkp->name, ret);
+		}
+	}
+
+	/* We must be careful disabling the clocks we are not intending to
+	 * be using at boot time, as subsytems such as the LCD which do
+	 * their own DMA requests to the bus can cause the system to lockup
+	 * if they where in the middle of requesting bus access.
+	 *
+	 * Disabling the LCD clock if the LCD is active is very dangerous,
+	 * and therefore the bootloader should be careful to not enable
+	 * the LCD clock if it is not needed.
+	*/
+
+	/* install (and disable) the clocks we do not need immediately */
+
+	clkp = init_clocks_disable;
+	for (ptr = 0; ptr < ARRAY_SIZE(init_clocks_disable); ptr++, clkp++) {
+
+		ret = s3c24xx_register_clock(clkp);
+		if (ret < 0) {
+			printk(KERN_ERR "Failed to register clock %s (%d)\n",
+			       clkp->name, ret);
+		}
+
+		s3c2412_clkcon_enable(clkp, 0);
+	}
+
+	return 0;
+}
-- 
cgit v1.1


From 46491c94d39a519178ba8c6b5b5d6a839210124d Mon Sep 17 00:00:00 2001
From: Ben Dooks <ben-linux@fluff.org>
Date: Sat, 24 Jun 2006 21:21:32 +0100
Subject: [ARM] 3640/1: S3C2412: Use S3C24XX_DCLKCON instead of S3C2410_DCLKCON

Patch from Ben Dooks

The current S3C2412 support has moved to using
S3C24XX_DCLKCON unless the specific DCLKCON is
required (S3C2412_DCLKCON or S3C2410_DKCLKCON)

Move the few places using S3C2410_DCLKCON to
S3C24XX_DCLKCON

Depends on Patch #3635/1

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-s3c2410/clock.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

(limited to 'arch')

diff --git a/arch/arm/mach-s3c2410/clock.c b/arch/arm/mach-s3c2410/clock.c
index 90a0610..e13fb67 100644
--- a/arch/arm/mach-s3c2410/clock.c
+++ b/arch/arm/mach-s3c2410/clock.c
@@ -268,14 +268,14 @@ struct clk clk_usb_bus = {
 
 static int s3c24xx_dclk_enable(struct clk *clk, int enable)
 {
-	unsigned long dclkcon = __raw_readl(S3C2410_DCLKCON);
+	unsigned long dclkcon = __raw_readl(S3C24XX_DCLKCON);
 
 	if (enable)
 		dclkcon |= clk->ctrlbit;
 	else
 		dclkcon &= ~clk->ctrlbit;
 
-	__raw_writel(dclkcon, S3C2410_DCLKCON);
+	__raw_writel(dclkcon, S3C24XX_DCLKCON);
 
 	return 0;
 }
@@ -294,7 +294,7 @@ static int s3c24xx_dclk_setparent(struct clk *clk, struct clk *parent)
 
 	clk->parent = parent;
 
-	dclkcon = __raw_readl(S3C2410_DCLKCON);
+	dclkcon = __raw_readl(S3C24XX_DCLKCON);
 
 	if (clk->ctrlbit == S3C2410_DCLKCON_DCLK0EN) {
 		if (uclk)
@@ -308,7 +308,7 @@ static int s3c24xx_dclk_setparent(struct clk *clk, struct clk *parent)
 			dclkcon &= ~S3C2410_DCLKCON_DCLK1_UCLK;
 	}
 
-	__raw_writel(dclkcon, S3C2410_DCLKCON);
+	__raw_writel(dclkcon, S3C24XX_DCLKCON);
 
 	return 0;
 }
-- 
cgit v1.1


From 44cc7c9c15124c4506da96304e5f9eb88200fc35 Mon Sep 17 00:00:00 2001
From: Ben Dooks <ben-linux@fluff.org>
Date: Sat, 24 Jun 2006 21:21:33 +0100
Subject: [ARM] 3641/1: S3C2412: Fixup gpio register naming

Patch from Ben Dooks

The current S3C2412 has used to moving S3C24XX_
for the generic form of an register has been
moved from the S3C2410.

Fixup S3C2410_EXTINTx and S3C2410_EINFLTx to
S3C24XX_EXTINTx and S3C24XX_EXTINTx

Depends on Patch #3635/1, Patch #3640/1

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-s3c2410/irq.c          | 8 ++++----
 arch/arm/mach-s3c2410/s3c2410-gpio.c | 6 +++---
 2 files changed, 7 insertions(+), 7 deletions(-)

(limited to 'arch')

diff --git a/arch/arm/mach-s3c2410/irq.c b/arch/arm/mach-s3c2410/irq.c
index 66d8c06..4646574 100644
--- a/arch/arm/mach-s3c2410/irq.c
+++ b/arch/arm/mach-s3c2410/irq.c
@@ -275,28 +275,28 @@ s3c_irqext_type(unsigned int irq, unsigned int type)
 	if ((irq >= IRQ_EINT0) && (irq <= IRQ_EINT3))
 	{
 		gpcon_reg = S3C2410_GPFCON;
-		extint_reg = S3C2410_EXTINT0;
+		extint_reg = S3C24XX_EXTINT0;
 		gpcon_offset = (irq - IRQ_EINT0) * 2;
 		extint_offset = (irq - IRQ_EINT0) * 4;
 	}
 	else if ((irq >= IRQ_EINT4) && (irq <= IRQ_EINT7))
 	{
 		gpcon_reg = S3C2410_GPFCON;
-		extint_reg = S3C2410_EXTINT0;
+		extint_reg = S3C24XX_EXTINT0;
 		gpcon_offset = (irq - (EXTINT_OFF)) * 2;
 		extint_offset = (irq - (EXTINT_OFF)) * 4;
 	}
 	else if ((irq >= IRQ_EINT8) && (irq <= IRQ_EINT15))
 	{
 		gpcon_reg = S3C2410_GPGCON;
-		extint_reg = S3C2410_EXTINT1;
+		extint_reg = S3C24XX_EXTINT1;
 		gpcon_offset = (irq - IRQ_EINT8) * 2;
 		extint_offset = (irq - IRQ_EINT8) * 4;
 	}
 	else if ((irq >= IRQ_EINT16) && (irq <= IRQ_EINT23))
 	{
 		gpcon_reg = S3C2410_GPGCON;
-		extint_reg = S3C2410_EXTINT2;
+		extint_reg = S3C24XX_EXTINT2;
 		gpcon_offset = (irq - IRQ_EINT8) * 2;
 		extint_offset = (irq - IRQ_EINT16) * 4;
 	} else
diff --git a/arch/arm/mach-s3c2410/s3c2410-gpio.c b/arch/arm/mach-s3c2410/s3c2410-gpio.c
index 17519b3..471a714 100644
--- a/arch/arm/mach-s3c2410/s3c2410-gpio.c
+++ b/arch/arm/mach-s3c2410/s3c2410-gpio.c
@@ -35,7 +35,7 @@
 int s3c2410_gpio_irqfilter(unsigned int pin, unsigned int on,
 			   unsigned int config)
 {
-	void __iomem *reg = S3C2410_EINFLT0;
+	void __iomem *reg = S3C24XX_EINFLT0;
 	unsigned long flags;
 	unsigned long val;
 
@@ -58,10 +58,10 @@ int s3c2410_gpio_irqfilter(unsigned int pin, unsigned int on,
 
 	/* update filter enable */
 
-	val = __raw_readl(S3C2410_EXTINT2);
+	val = __raw_readl(S3C24XX_EXTINT2);
 	val &= ~(1 << ((pin * 4) + 3));
 	val |= on << ((pin * 4) + 3);
-	__raw_writel(val, S3C2410_EXTINT2);
+	__raw_writel(val, S3C24XX_EXTINT2);
 
 	local_irq_restore(flags);
 
-- 
cgit v1.1


From 66c594098db1ee885f486a684b66937e28e792b1 Mon Sep 17 00:00:00 2001
From: Ben Dooks <ben-linux@fluff.org>
Date: Sat, 24 Jun 2006 21:21:35 +0100
Subject: [ARM] 3642/1: S3C24XX: Add machine SMDK2413

Patch from Ben Dooks

Add basic support for the Samsung/Aiji SMDK2413

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-s3c2410/Kconfig         |   6 ++
 arch/arm/mach-s3c2410/Makefile        |   1 +
 arch/arm/mach-s3c2410/mach-smdk2413.c | 126 ++++++++++++++++++++++++++++++++++
 3 files changed, 133 insertions(+)
 create mode 100644 arch/arm/mach-s3c2410/mach-smdk2413.c

(limited to 'arch')

diff --git a/arch/arm/mach-s3c2410/Kconfig b/arch/arm/mach-s3c2410/Kconfig
index b61af3a..f5d9cd4 100644
--- a/arch/arm/mach-s3c2410/Kconfig
+++ b/arch/arm/mach-s3c2410/Kconfig
@@ -81,6 +81,12 @@ config SMDK2440_CPU2442
 	depends on ARCH_S3C2440
 	select CPU_S3C2442
 
+config MACH_SMDK2413
+	bool "SMDK2413"
+	select CPU_S3C2412
+	select MACH_SMDK
+	help
+	  Say Y here if you are using an SMDK2413
 
 config MACH_VR1000
 	bool "Thorcom VR1000"
diff --git a/arch/arm/mach-s3c2410/Makefile b/arch/arm/mach-s3c2410/Makefile
index d934a89..0c79386 100644
--- a/arch/arm/mach-s3c2410/Makefile
+++ b/arch/arm/mach-s3c2410/Makefile
@@ -62,6 +62,7 @@ obj-$(CONFIG_ARCH_BAST)		+= mach-bast.o usb-simtec.o
 obj-$(CONFIG_ARCH_H1940)	+= mach-h1940.o
 obj-$(CONFIG_MACH_N30)		+= mach-n30.o
 obj-$(CONFIG_ARCH_SMDK2410)	+= mach-smdk2410.o
+obj-$(CONFIG_MACH_SMDK2413)	+= mach-smdk2413.o
 obj-$(CONFIG_ARCH_S3C2440)	+= mach-smdk2440.o
 obj-$(CONFIG_MACH_VR1000)	+= mach-vr1000.o usb-simtec.o
 obj-$(CONFIG_MACH_RX3715)	+= mach-rx3715.o
diff --git a/arch/arm/mach-s3c2410/mach-smdk2413.c b/arch/arm/mach-s3c2410/mach-smdk2413.c
new file mode 100644
index 0000000..b7ef7d3
--- /dev/null
+++ b/arch/arm/mach-s3c2410/mach-smdk2413.c
@@ -0,0 +1,126 @@
+/* linux/arch/arm/mach-s3c2410/mach-smdk2413.c
+ *
+ * Copyright (c) 2006 Simtec Electronics
+ *	Ben Dooks <ben@simtec.co.uk>
+ *
+ * Thanks to Dimity Andric (TomTom) and Steven Ryu (Samsung) for the
+ * loans of SMDK2413 to work with.
+ *
+ * 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/kernel.h>
+#include <linux/types.h>
+#include <linux/interrupt.h>
+#include <linux/list.h>
+#include <linux/timer.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+#include <asm/mach/irq.h>
+
+#include <asm/hardware.h>
+#include <asm/hardware/iomd.h>
+#include <asm/setup.h>
+#include <asm/io.h>
+#include <asm/irq.h>
+#include <asm/mach-types.h>
+
+//#include <asm/debug-ll.h>
+#include <asm/arch/regs-serial.h>
+#include <asm/arch/regs-gpio.h>
+#include <asm/arch/regs-lcd.h>
+
+#include <asm/arch/idle.h>
+#include <asm/arch/fb.h>
+
+#include "s3c2410.h"
+#include "s3c2412.h"
+#include "clock.h"
+#include "devs.h"
+#include "cpu.h"
+
+#include "common-smdk.h"
+
+static struct map_desc smdk2413_iodesc[] __initdata = {
+};
+
+static struct s3c2410_uartcfg smdk2413_uartcfgs[] __initdata = {
+	[0] = {
+		.hwport	     = 0,
+		.flags	     = 0,
+		.ucon	     = 0x3c5,
+		.ulcon	     = 0x03,
+		.ufcon	     = 0x51,
+	},
+	[1] = {
+		.hwport	     = 1,
+		.flags	     = 0,
+		.ucon	     = 0x3c5,
+		.ulcon	     = 0x03,
+		.ufcon	     = 0x51,
+	},
+	/* IR port */
+	[2] = {
+		.hwport	     = 2,
+		.flags	     = 0,
+		.ucon	     = 0x3c5,
+		.ulcon	     = 0x43,
+		.ufcon	     = 0x51,
+	}
+};
+
+static struct platform_device *smdk2413_devices[] __initdata = {
+	&s3c_device_usb,
+	//&s3c_device_lcd,
+	&s3c_device_wdt,
+	&s3c_device_i2c,
+	&s3c_device_iis,
+};
+
+static struct s3c24xx_board smdk2413_board __initdata = {
+	.devices       = smdk2413_devices,
+	.devices_count = ARRAY_SIZE(smdk2413_devices)
+};
+
+static void __init smdk2413_fixup(struct machine_desc *desc,
+				  struct tag *tags, char **cmdline,
+				  struct meminfo *mi)
+{
+	if (tags != phys_to_virt(S3C2410_SDRAM_PA + 0x100)) {
+		mi->nr_banks=1;
+		mi->bank[0].start = 0x30000000;
+		mi->bank[0].size = SZ_64M;
+		mi->bank[0].node = 0;
+	}
+}
+
+static void __init smdk2413_map_io(void)
+{
+	s3c24xx_init_io(smdk2413_iodesc, ARRAY_SIZE(smdk2413_iodesc));
+	s3c24xx_init_clocks(12000000);
+	s3c24xx_init_uarts(smdk2413_uartcfgs, ARRAY_SIZE(smdk2413_uartcfgs));
+	s3c24xx_set_board(&smdk2413_board);
+}
+
+static void __init smdk2413_machine_init(void)
+{
+	smdk_machine_init();
+}
+
+MACHINE_START(S3C2413, "SMDK2413")
+	/* Maintainer: Ben Dooks <ben@fluff.org> */
+	.phys_io	= S3C2410_PA_UART,
+	.io_pg_offst	= (((u32)S3C24XX_VA_UART) >> 18) & 0xfffc,
+	.boot_params	= S3C2410_SDRAM_PA + 0x100,
+
+	.fixup		= smdk2413_fixup,
+	.init_irq	= s3c24xx_init_irq,
+	.map_io		= smdk2413_map_io,
+	.init_machine	= smdk2413_machine_init,
+	.timer		= &s3c24xx_timer,
+MACHINE_END
-- 
cgit v1.1


From 22346aea8d39372d6fd207468701e90bf546b882 Mon Sep 17 00:00:00 2001
From: Ben Dooks <ben-linux@fluff.org>
Date: Sat, 24 Jun 2006 21:21:36 +0100
Subject: [ARM] 3643/1: S3C2410: Add new usb clocks

Patch from Ben Dooks

Make the S3C2410 use the same usb clock naming
as the S3C2412

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-s3c2410/s3c2410-clock.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/arm/mach-s3c2410/s3c2410-clock.c b/arch/arm/mach-s3c2410/s3c2410-clock.c
index fd17c60..9971866 100644
--- a/arch/arm/mach-s3c2410/s3c2410-clock.c
+++ b/arch/arm/mach-s3c2410/s3c2410-clock.c
@@ -182,7 +182,15 @@ static struct clk init_clocks[] = {
 		.id		= -1,
 		.parent		= &clk_p,
 		.ctrlbit	= 0,
-	}
+	}, {
+		.name		= "usb-bus-host",
+		.id		= -1,
+		.parent		= &clk_usb_bus,
+	}, {
+		.name		= "usb-bus-gadget",
+		.id		= -1,
+		.parent		= &clk_usb_bus,
+	},
 };
 
 /* s3c2410_baseclk_add()
-- 
cgit v1.1


From a019f4a9a7b4ec4986918e9aefa06815cf77b714 Mon Sep 17 00:00:00 2001
From: Ben Dooks <ben-linux@fluff.org>
Date: Sat, 24 Jun 2006 21:21:37 +0100
Subject: [ARM] 3645/1: S3C2412: irq support for external interrupts

Patch from Ben Dooks

Move the decoding of the IRQ_EXT4 and above out of
the entry macro, and into an chained irq handler
as the EXTINT registers move depending on the CPU
being used.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-s3c2410/irq.c | 49 ++++++++++++++++++++++++++++++---------------
 1 file changed, 33 insertions(+), 16 deletions(-)

(limited to 'arch')

diff --git a/arch/arm/mach-s3c2410/irq.c b/arch/arm/mach-s3c2410/irq.c
index 4646574..6822dc7 100644
--- a/arch/arm/mach-s3c2410/irq.c
+++ b/arch/arm/mach-s3c2410/irq.c
@@ -191,13 +191,9 @@ static struct irqchip s3c_irq_chip = {
 	.ack	   = s3c_irq_ack,
 	.mask	   = s3c_irq_mask,
 	.unmask	   = s3c_irq_unmask,
-	.set_wake	   = s3c_irq_wake
+	.set_wake  = s3c_irq_wake
 };
 
-/* S3C2410_EINTMASK
- * S3C2410_EINTPEND
- */
-
 static void
 s3c_irqext_mask(unsigned int irqno)
 {
@@ -205,9 +201,9 @@ s3c_irqext_mask(unsigned int irqno)
 
 	irqno -= EXTINT_OFF;
 
-	mask = __raw_readl(S3C2410_EINTMASK);
+	mask = __raw_readl(S3C24XX_EINTMASK);
 	mask |= ( 1UL << irqno);
-	__raw_writel(mask, S3C2410_EINTMASK);
+	__raw_writel(mask, S3C24XX_EINTMASK);
 
 	if (irqno <= (IRQ_EINT7 - EXTINT_OFF)) {
 		/* check to see if all need masking */
@@ -232,11 +228,11 @@ s3c_irqext_ack(unsigned int irqno)
 	bit = 1UL << (irqno - EXTINT_OFF);
 
 
-	mask = __raw_readl(S3C2410_EINTMASK);
+	mask = __raw_readl(S3C24XX_EINTMASK);
 
-	__raw_writel(bit, S3C2410_EINTPEND);
+	__raw_writel(bit, S3C24XX_EINTPEND);
 
-	req = __raw_readl(S3C2410_EINTPEND);
+	req = __raw_readl(S3C24XX_EINTPEND);
 	req &= ~mask;
 
 	/* not sure if we should be acking the parent irq... */
@@ -257,9 +253,9 @@ s3c_irqext_unmask(unsigned int irqno)
 
 	irqno -= EXTINT_OFF;
 
-	mask = __raw_readl(S3C2410_EINTMASK);
+	mask = __raw_readl(S3C24XX_EINTMASK);
 	mask &= ~( 1UL << irqno);
-	__raw_writel(mask, S3C2410_EINTMASK);
+	__raw_writel(mask, S3C24XX_EINTMASK);
 
 	s3c_irq_unmask((irqno <= (IRQ_EINT7 - EXTINT_OFF)) ? IRQ_EINT4t7 : IRQ_EINT8t23);
 }
@@ -572,6 +568,23 @@ s3c_irq_demux_uart2(unsigned int irq,
 	s3c_irq_demux_uart(IRQ_S3CUART_RX2, regs);
 }
 
+static void
+s3c_irq_demux_extint(unsigned int irq,
+		     struct irqdesc *desc,
+		     struct pt_regs *regs)
+{
+	unsigned long eintpnd = __raw_readl(S3C24XX_EINTPEND);
+	unsigned long eintmsk = __raw_readl(S3C24XX_EINTMASK);
+
+	eintpnd &= ~eintmsk;
+
+	if (eintpnd) {
+		irq = fls(eintpnd);
+		irq += (IRQ_EINT4 - (4 + 1));
+
+		desc_handle_irq(irq, irq_desc + irq, regs);
+	}
+}
 
 /* s3c24xx_init_irq
  *
@@ -591,12 +604,12 @@ void __init s3c24xx_init_irq(void)
 
 	last = 0;
 	for (i = 0; i < 4; i++) {
-		pend = __raw_readl(S3C2410_EINTPEND);
+		pend = __raw_readl(S3C24XX_EINTPEND);
 
 		if (pend == 0 || pend == last)
 			break;
 
-		__raw_writel(pend, S3C2410_EINTPEND);
+		__raw_writel(pend, S3C24XX_EINTPEND);
 		printk("irq: clearing pending ext status %08x\n", (int)pend);
 		last = pend;
 	}
@@ -630,12 +643,14 @@ void __init s3c24xx_init_irq(void)
 
 	irqdbf("s3c2410_init_irq: registering s3c2410 interrupt handlers\n");
 
-	for (irqno = IRQ_BATT_FLT; irqno <= IRQ_ADCPARENT; irqno++) {
+	for (irqno = IRQ_EINT4t7; irqno <= IRQ_ADCPARENT; irqno++) {
 		/* set all the s3c2410 internal irqs */
 
 		switch (irqno) {
 			/* deal with the special IRQs (cascaded) */
 
+		case IRQ_EINT4t7:
+		case IRQ_EINT8t23:
 		case IRQ_UART0:
 		case IRQ_UART1:
 		case IRQ_UART2:
@@ -659,12 +674,14 @@ void __init s3c24xx_init_irq(void)
 
 	/* setup the cascade irq handlers */
 
+	set_irq_chained_handler(IRQ_EINT4t7, s3c_irq_demux_extint);
+	set_irq_chained_handler(IRQ_EINT8t23, s3c_irq_demux_extint);
+
 	set_irq_chained_handler(IRQ_UART0, s3c_irq_demux_uart0);
 	set_irq_chained_handler(IRQ_UART1, s3c_irq_demux_uart1);
 	set_irq_chained_handler(IRQ_UART2, s3c_irq_demux_uart2);
 	set_irq_chained_handler(IRQ_ADCPARENT, s3c_irq_demux_adc);
 
-
 	/* external interrupts */
 
 	for (irqno = IRQ_EINT0; irqno <= IRQ_EINT3; irqno++) {
-- 
cgit v1.1


From c9b949a734adef5d05cbaa0b0546b924ca517155 Mon Sep 17 00:00:00 2001
From: Ben Dooks <ben-linux@fluff.org>
Date: Sat, 24 Jun 2006 21:22:35 +0100
Subject: [ARM] 3647/1: S3C24XX: add Osiris to the list of simtec pm machines

Patch from Ben Dooks

Enable power management for Simtec Osiris

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-s3c2410/pm-simtec.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'arch')

diff --git a/arch/arm/mach-s3c2410/pm-simtec.c b/arch/arm/mach-s3c2410/pm-simtec.c
index 4c7ccef..7b24456 100644
--- a/arch/arm/mach-s3c2410/pm-simtec.c
+++ b/arch/arm/mach-s3c2410/pm-simtec.c
@@ -48,7 +48,8 @@ static __init int pm_simtec_init(void)
 
 	/* check which machine we are running on */
 
-	if (!machine_is_bast() && !machine_is_vr1000() && !machine_is_anubis())
+	if (!machine_is_bast() && !machine_is_vr1000() &&
+	    !machine_is_anubis() && !machine_is_osiris())
 		return 0;
 
 	printk(KERN_INFO "Simtec Board Power Manangement" COPYRIGHT "\n");
-- 
cgit v1.1


From ca195cfec9fff622a61b1b72534e73360747f735 Mon Sep 17 00:00:00 2001
From: Russell King <rmk@dyn-67.arm.linux.org.uk>
Date: Sat, 24 Jun 2006 22:41:09 +0100
Subject: [ARM] Add identifying number for non-rt sigframe

GDB couldn't reliably tell the difference between the old and new
non-rt sigframes, so provide it with a number at the beginning which
will never appear in the old sigframe, and hence provide gdb with a
reliable way to tell the two apart.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/kernel/signal.c | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'arch')

diff --git a/arch/arm/kernel/signal.c b/arch/arm/kernel/signal.c
index 9628511..c0ba8af 100644
--- a/arch/arm/kernel/signal.c
+++ b/arch/arm/kernel/signal.c
@@ -470,6 +470,11 @@ setup_frame(int usig, struct k_sigaction *ka, sigset_t *set, struct pt_regs *reg
 	if (!frame)
 		return 1;
 
+	/*
+	 * Set uc.uc_flags to a value which sc.trap_no would never have.
+	 */
+	__put_user_error(0x5ac3c35a, &frame->uc.uc_flags, err);
+
 	err |= setup_sigframe(frame, regs, set);
 	if (err == 0)
 		err = setup_return(regs, ka, frame->retcode, frame, usig);
-- 
cgit v1.1


From 85fe068123aa11d3477ce88c7d365e233b1f2e10 Mon Sep 17 00:00:00 2001
From: Daniel Jacobowitz <drow@false.org>
Date: Sat, 24 Jun 2006 23:46:21 +0100
Subject: [ARM] 3648/1: Update struct ucontext layout for coprocessor registers

Patch from Daniel Jacobowitz

In order for userspace to find saved coprocessor registers, move them from
struct rt_sigframe into struct ucontext.  Also allow space for glibc's
sigset_t, so that userspace and kernelspace can use the same ucontext
layout.  Define the magic numbers for iWMMXt in the header file for easier
reference.  Include the size of the coprocessor data in the magic numbers.

Also define magic numbers and layout for VFP, not yet saved.

Signed-off-by: Daniel Jacobowitz <dan@codesourcery.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/kernel/signal.c | 42 +++++++++++-------------------------------
 1 file changed, 11 insertions(+), 31 deletions(-)

(limited to 'arch')

diff --git a/arch/arm/kernel/signal.c b/arch/arm/kernel/signal.c
index c0ba8af..e5802bf 100644
--- a/arch/arm/kernel/signal.c
+++ b/arch/arm/kernel/signal.c
@@ -134,17 +134,6 @@ sys_sigaction(int sig, const struct old_sigaction __user *act,
 
 #ifdef CONFIG_IWMMXT
 
-/* iwmmxt_area is 0x98 bytes long, preceeded by 8 bytes of signature */
-#define IWMMXT_STORAGE_SIZE	(0x98 + 8)
-#define IWMMXT_MAGIC0		0x12ef842a
-#define IWMMXT_MAGIC1		0x1c07ca71
-
-struct iwmmxt_sigframe {
-	unsigned long	magic0;
-	unsigned long	magic1;
-	unsigned long	storage[0x98/4];
-};
-
 static int preserve_iwmmxt_context(struct iwmmxt_sigframe *frame)
 {
 	char kbuf[sizeof(*frame) + 8];
@@ -152,8 +141,8 @@ static int preserve_iwmmxt_context(struct iwmmxt_sigframe *frame)
 
 	/* the iWMMXt context must be 64 bit aligned */
 	kframe = (struct iwmmxt_sigframe *)((unsigned long)(kbuf + 8) & ~7);
-	kframe->magic0 = IWMMXT_MAGIC0;
-	kframe->magic1 = IWMMXT_MAGIC1;
+	kframe->magic = IWMMXT_MAGIC;
+	kframe->size = IWMMXT_STORAGE_SIZE;
 	iwmmxt_task_copy(current_thread_info(), &kframe->storage);
 	return __copy_to_user(frame, kframe, sizeof(*frame));
 }
@@ -167,8 +156,8 @@ static int restore_iwmmxt_context(struct iwmmxt_sigframe *frame)
 	kframe = (struct iwmmxt_sigframe *)((unsigned long)(kbuf + 8) & ~7);
 	if (__copy_from_user(kframe, frame, sizeof(*frame)))
 		return -1;
-	if (kframe->magic0 != IWMMXT_MAGIC0 ||
-	    kframe->magic1 != IWMMXT_MAGIC1)
+	if (kframe->magic != IWMMXT_MAGIC ||
+	    kframe->size != IWMMXT_STORAGE_SIZE)
 		return -1;
 	iwmmxt_task_restore(current_thread_info(), &kframe->storage);
 	return 0;
@@ -177,25 +166,11 @@ static int restore_iwmmxt_context(struct iwmmxt_sigframe *frame)
 #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 ucontext uc;
 	unsigned long retcode[2];
-	struct aux_sigframe aux __attribute__((aligned(8)));
 };
 
 struct rt_sigframe {
@@ -205,6 +180,7 @@ struct rt_sigframe {
 
 static int restore_sigframe(struct pt_regs *regs, struct sigframe __user *sf)
 {
+	struct aux_sigframe __user *aux;
 	sigset_t set;
 	int err;
 
@@ -237,9 +213,10 @@ static int restore_sigframe(struct pt_regs *regs, struct sigframe __user *sf)
 
 	err |= !valid_user_regs(regs);
 
+	aux = (struct aux_sigframe __user *) sf->uc.uc_regspace;
 #ifdef CONFIG_IWMMXT
 	if (err == 0 && test_thread_flag(TIF_USING_IWMMXT))
-		err |= restore_iwmmxt_context(&sf->aux.iwmmxt);
+		err |= restore_iwmmxt_context(&aux->iwmmxt);
 #endif
 #ifdef CONFIG_VFP
 //	if (err == 0)
@@ -327,6 +304,7 @@ badframe:
 static int
 setup_sigframe(struct sigframe __user *sf, struct pt_regs *regs, sigset_t *set)
 {
+	struct aux_sigframe __user *aux;
 	int err = 0;
 
 	__put_user_error(regs->ARM_r0, &sf->uc.uc_mcontext.arm_r0, err);
@@ -354,14 +332,16 @@ setup_sigframe(struct sigframe __user *sf, struct pt_regs *regs, sigset_t *set)
 
 	err |= __copy_to_user(&sf->uc.uc_sigmask, set, sizeof(*set));
 
+	aux = (struct aux_sigframe __user *) sf->uc.uc_regspace;
 #ifdef CONFIG_IWMMXT
 	if (err == 0 && test_thread_flag(TIF_USING_IWMMXT))
-		err |= preserve_iwmmxt_context(&sf->aux.iwmmxt);
+		err |= preserve_iwmmxt_context(&aux->iwmmxt);
 #endif
 #ifdef CONFIG_VFP
 //	if (err == 0)
 //		err |= vfp_save_state(&sf->aux.vfp);
 #endif
+	__put_user_error(0, &aux->end_magic, err);
 
 	return err;
 }
-- 
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