Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k: (24 commits)
  m68k: Define sigcontext ABI of ColdFire
  m68knommu: NPTL support for uClinux
  m68k: Add NPTL support
  m68k: Eliminate unused variable in page_to_phys()
  m68k: Switch to generic siginfo layout
  macfb: fix 24-bit visual and stuff
  macfb: cleanup
  fbdev: add some missing mac modes
  mac68k: start CUDA early
  valkyriefb: various fixes
  fbdev: mac_var_to_mode() fix
  mac68k: move macsonic and macmace platform devices
  mac68k: move mac_esp platform device
  mac68k: replace mac68k SCC code with platform device
  pmac-zilog: add platform driver
  pmac-zilog: cleanup
  mac68k: rework SWIM platform device
  mac68k: cleanup
  ataflop: Killl warning about unused variable flags
  m68k: Use DIV_ROUND_CLOSEST
  ...

33 files changed, 432 insertions, 755 deletions

diff --git a/arch/h8300/mm/memory.c b/arch/h8300/mm/memory.c
index ccd6ade816dd..40d8aa811e4e 100644
--- a/arch/h8300/mm/memory.c
+++ b/arch/h8300/mm/memory.c
@@ -44,8 +44,8 @@ void cache_push_v (unsigned long vaddr, int len)
 {
 }
 
-/* Map some physical address range into the kernel address space. The
- * code is copied and adapted from map_chunk().
+/*
+ * Map some physical address range into the kernel address space.
  */
 
 unsigned long kernel_map(unsigned long paddr, unsigned long size,
diff --git a/arch/m68k/Kconfig b/arch/m68k/Kconfig
index ecdc19a299b2..b5da298ba61d 100644
--- a/arch/m68k/Kconfig
+++ b/arch/m68k/Kconfig
@@ -536,10 +536,6 @@ config GVPIOEXT_PLIP
 	  Say Y to enable doing IP over the parallel port on your GVP
 	  IO-Extender card, N otherwise.
 
-config MAC_SCC
-	tristate "Macintosh serial support"
-	depends on MAC
-
 config MAC_HID
 	bool
 	depends on INPUT_ADBHID
@@ -595,7 +591,7 @@ config DN_SERIAL
 
 config SERIAL_CONSOLE
 	bool "Support for serial port console"
-	depends on (AMIGA || ATARI || MAC || SUN3 || SUN3X || VME || APOLLO) && (ATARI_MFPSER=y || ATARI_MIDI=y || MAC_SCC=y || AMIGA_BUILTIN_SERIAL=y || GVPIOEXT=y || MULTIFACE_III_TTY=y || SERIAL=y || MVME147_SCC || SERIAL167 || MVME162_SCC || BVME6000_SCC || DN_SERIAL)
+	depends on (AMIGA || ATARI || SUN3 || SUN3X || VME || APOLLO) && (ATARI_MFPSER=y || ATARI_MIDI=y || AMIGA_BUILTIN_SERIAL=y || GVPIOEXT=y || MULTIFACE_III_TTY=y || SERIAL=y || MVME147_SCC || SERIAL167 || MVME162_SCC || BVME6000_SCC || DN_SERIAL)
 	---help---
 	  If you say Y here, it will be possible to use a serial port as the
 	  system console (the system console is the device which receives all
diff --git a/arch/m68k/amiga/config.c b/arch/m68k/amiga/config.c
index 6c74751c7b82..d2cc35d98532 100644
--- a/arch/m68k/amiga/config.c
+++ b/arch/m68k/amiga/config.c
@@ -480,7 +480,7 @@ static void __init amiga_sched_init(irq_handler_t timer_routine)
 	static struct resource sched_res = {
 		.name = "timer", .start = 0x00bfd400, .end = 0x00bfd5ff,
 	};
-	jiffy_ticks = (amiga_eclock+HZ/2)/HZ;
+	jiffy_ticks = DIV_ROUND_CLOSEST(amiga_eclock, HZ);
 
 	if (request_resource(&mb_resources._ciab, &sched_res))
 		printk("Cannot allocate ciab.ta{lo,hi}\n");
diff --git a/arch/m68k/configs/mac_defconfig b/arch/m68k/configs/mac_defconfig
index 9991b64fea57..c5f3232ff916 100644
--- a/arch/m68k/configs/mac_defconfig
+++ b/arch/m68k/configs/mac_defconfig
@@ -701,6 +701,11 @@ CONFIG_VT_HW_CONSOLE_BINDING=y
 #
 # Non-8250 serial port support
 #
+CONFIG_SERIAL_CORE=y
+CONFIG_SERIAL_CORE_CONSOLE=y
+CONFIG_SERIAL_PMACZILOG=y
+CONFIG_SERIAL_PMACZILOG_TTYS=y
+CONFIG_SERIAL_PMACZILOG_CONSOLE=y
 CONFIG_UNIX98_PTYS=y
 # CONFIG_DEVPTS_MULTIPLE_INSTANCES is not set
 CONFIG_LEGACY_PTYS=y
@@ -834,9 +839,7 @@ CONFIG_HIDRAW=y
 #
 # Character devices
 #
-CONFIG_MAC_SCC=y
 CONFIG_MAC_HID=y
-CONFIG_SERIAL_CONSOLE=y
 
 #
 # File systems
diff --git a/arch/m68k/configs/multi_defconfig b/arch/m68k/configs/multi_defconfig
index 69c43e2d8b45..a8bfa3fa71cf 100644
--- a/arch/m68k/configs/multi_defconfig
+++ b/arch/m68k/configs/multi_defconfig
@@ -822,6 +822,11 @@ CONFIG_A2232=y
 #
 # Non-8250 serial port support
 #
+CONFIG_SERIAL_CORE=y
+CONFIG_SERIAL_CORE_CONSOLE=y
+CONFIG_SERIAL_PMACZILOG=y
+CONFIG_SERIAL_PMACZILOG_TTYS=y
+CONFIG_SERIAL_PMACZILOG_CONSOLE=y
 CONFIG_UNIX98_PTYS=y
 # CONFIG_DEVPTS_MULTIPLE_INSTANCES is not set
 CONFIG_LEGACY_PTYS=y
@@ -982,7 +987,6 @@ CONFIG_ATARI_MIDI=y
 CONFIG_ATARI_DSP56K=m
 CONFIG_AMIGA_BUILTIN_SERIAL=y
 CONFIG_MULTIFACE_III_TTY=m
-CONFIG_MAC_SCC=y
 CONFIG_MAC_HID=y
 CONFIG_MVME147_SCC=y
 CONFIG_SERIAL167=y
diff --git a/arch/m68k/include/asm/machw.h b/arch/m68k/include/asm/machw.h
index 2b4de0c2ce4a..a22095164927 100644
--- a/arch/m68k/include/asm/machw.h
+++ b/arch/m68k/include/asm/machw.h
@@ -21,29 +21,4 @@
 #define VIDEOMEMSIZE	(4096*1024)
 #define VIDEOMEMMASK	(-4096*1024)
 
-#ifndef __ASSEMBLY__
-
-#include <linux/types.h>
-
-#if 0
-/*
-** SCC Z8530
-*/
-
-#define MAC_SCC_BAS (0x50F04000)
-struct MAC_SCC
- {
-  u_char cha_a_ctrl;
-  u_char char_dummy1;
-  u_char cha_a_data;
-  u_char char_dummy2;
-  u_char cha_b_ctrl;
-  u_char char_dummy3;
-  u_char cha_b_data;
- };
-# define mac_scc ((*(volatile struct SCC*)MAC_SCC_BAS))
-#endif
-
-#endif /* __ASSEMBLY__ */
-
 #endif /* linux/machw.h */
diff --git a/arch/m68k/include/asm/macints.h b/arch/m68k/include/asm/macints.h
index 679c48ab4407..ebe1b70fe90c 100644
--- a/arch/m68k/include/asm/macints.h
+++ b/arch/m68k/include/asm/macints.h
@@ -37,7 +37,6 @@
 
 #define VIA1_SOURCE_BASE	8
 #define VIA2_SOURCE_BASE	16
-#define MAC_SCC_SOURCE_BASE	24
 #define PSC3_SOURCE_BASE	24
 #define PSC4_SOURCE_BASE	32
 #define PSC5_SOURCE_BASE	40
@@ -96,26 +95,12 @@
 #define IRQ_PSC3_2	  (26)
 #define IRQ_PSC3_3	  (27)
 
-/* Level 4 (SCC) interrupts */
-#define IRQ_SCC		     (32)
-#define IRQ_SCCA	     (33)
-#define IRQ_SCCB	     (34)
-#if 0 /* FIXME: are there multiple interrupt conditions on the SCC ?? */
-/* SCC interrupts */
-#define IRQ_SCCB_TX	     (32)
-#define IRQ_SCCB_STAT	     (33)
-#define IRQ_SCCB_RX	     (34)
-#define IRQ_SCCB_SPCOND	     (35)
-#define IRQ_SCCA_TX	     (36)
-#define IRQ_SCCA_STAT	     (37)
-#define IRQ_SCCA_RX	     (38)
-#define IRQ_SCCA_SPCOND	     (39)
-#endif
-
 /* Level 4 (PSC, AV Macs only) interrupts */
 #define IRQ_PSC4_0	  (32)
 #define IRQ_PSC4_1	  (33)
+#define IRQ_MAC_SCC_A	  IRQ_PSC4_1
 #define IRQ_PSC4_2	  (34)
+#define IRQ_MAC_SCC_B	  IRQ_PSC4_2
 #define IRQ_PSC4_3	  (35)
 #define IRQ_MAC_MACE_DMA  IRQ_PSC4_3
 
@@ -146,6 +131,9 @@
 #define IRQ_BABOON_2	  (66)
 #define IRQ_BABOON_3	  (67)
 
+/* On non-PSC machines, the serial ports share an IRQ */
+#define IRQ_MAC_SCC	  IRQ_AUTO_4
+
 #define SLOT2IRQ(x)	  (x + 47)
 #define IRQ2SLOT(x)	  (x - 47)
 
diff --git a/arch/m68k/include/asm/ptrace.h b/arch/m68k/include/asm/ptrace.h
index ee4011c23281..21605c736f69 100644
--- a/arch/m68k/include/asm/ptrace.h
+++ b/arch/m68k/include/asm/ptrace.h
@@ -71,6 +71,8 @@ struct switch_stack {
 #define PTRACE_GETFPREGS          14
 #define PTRACE_SETFPREGS          15
 
+#define PTRACE_GET_THREAD_AREA    25
+
 #define PTRACE_SINGLEBLOCK	33	/* resume execution until next branch */
 
 #ifdef __KERNEL__
diff --git a/arch/m68k/include/asm/sigcontext.h b/arch/m68k/include/asm/sigcontext.h
index 523db2a51cf3..1320eaa4cc2a 100644
--- a/arch/m68k/include/asm/sigcontext.h
+++ b/arch/m68k/include/asm/sigcontext.h
@@ -15,9 +15,15 @@ struct sigcontext {
 	unsigned long  sc_pc;
 	unsigned short sc_formatvec;
 #ifndef __uClinux__
+# ifdef __mcoldfire__
+	unsigned long  sc_fpregs[2][2];	/* room for two fp registers */
+	unsigned long  sc_fpcntl[3];
+	unsigned char  sc_fpstate[16+6*8];
+# else
 	unsigned long  sc_fpregs[2*3];  /* room for two fp registers */
 	unsigned long  sc_fpcntl[3];
 	unsigned char  sc_fpstate[216];
+# endif
 #endif
 };
 
diff --git a/arch/m68k/include/asm/siginfo.h b/arch/m68k/include/asm/siginfo.h
index ca7dde8fd223..851d3d784b53 100644
--- a/arch/m68k/include/asm/siginfo.h
+++ b/arch/m68k/include/asm/siginfo.h
@@ -1,97 +1,6 @@
 #ifndef _M68K_SIGINFO_H
 #define _M68K_SIGINFO_H
 
-#ifndef __uClinux__
-#define HAVE_ARCH_SIGINFO_T
-#define HAVE_ARCH_COPY_SIGINFO
-#endif
-
 #include <asm-generic/siginfo.h>
 
-#ifndef __uClinux__
-
-typedef struct siginfo {
-	int si_signo;
-	int si_errno;
-	int si_code;
-
-	union {
-		int _pad[SI_PAD_SIZE];
-
-		/* kill() */
-		struct {
-			__kernel_pid_t _pid;	/* sender's pid */
-			__kernel_uid_t _uid;	/* backwards compatibility */
-			__kernel_uid32_t _uid32; /* sender's uid */
-		} _kill;
-
-		/* POSIX.1b timers */
-		struct {
-			timer_t _tid;		/* timer id */
-			int _overrun;		/* overrun count */
-			char _pad[sizeof( __ARCH_SI_UID_T) - sizeof(int)];
-			sigval_t _sigval;	/* same as below */
-			int _sys_private;       /* not to be passed to user */
-		} _timer;
-
-		/* POSIX.1b signals */
-		struct {
-			__kernel_pid_t _pid;	/* sender's pid */
-			__kernel_uid_t _uid;	/* backwards compatibility */
-			sigval_t _sigval;
-			__kernel_uid32_t _uid32; /* sender's uid */
-		} _rt;
-
-		/* SIGCHLD */
-		struct {
-			__kernel_pid_t _pid;	/* which child */
-			__kernel_uid_t _uid;	/* backwards compatibility */
-			int _status;		/* exit code */
-			clock_t _utime;
-			clock_t _stime;
-			__kernel_uid32_t _uid32; /* sender's uid */
-		} _sigchld;
-
-		/* SIGILL, SIGFPE, SIGSEGV, SIGBUS */
-		struct {
-			void *_addr; /* faulting insn/memory ref. */
-		} _sigfault;
-
-		/* SIGPOLL */
-		struct {
-			int _band;	/* POLL_IN, POLL_OUT, POLL_MSG */
-			int _fd;
-		} _sigpoll;
-	} _sifields;
-} siginfo_t;
-
-#define UID16_SIGINFO_COMPAT_NEEDED
-
-/*
- * How these fields are to be accessed.
- */
-#undef si_uid
-#ifdef __KERNEL__
-#define si_uid		_sifields._kill._uid32
-#define si_uid16	_sifields._kill._uid
-#else
-#define si_uid		_sifields._kill._uid
-#endif
-
-#ifdef __KERNEL__
-
-#include <linux/string.h>
-
-static inline void copy_siginfo(struct siginfo *to, struct siginfo *from)
-{
-	if (from->si_code < 0)
-		memcpy(to, from, sizeof(*to));
-	else
-		/* _sigchld is currently the largest know union member */
-		memcpy(to, from, 3*sizeof(int) + sizeof(from->_sifields._sigchld));
-}
-
-#endif /* __KERNEL__ */
-#endif /* !__uClinux__ */
-
 #endif
diff --git a/arch/m68k/include/asm/swab.h b/arch/m68k/include/asm/swab.h
index 5b754aace744..b7b37a40defc 100644
--- a/arch/m68k/include/asm/swab.h
+++ b/arch/m68k/include/asm/swab.h
@@ -14,7 +14,7 @@ static inline __attribute_const__ __u32 __arch_swab32(__u32 val)
 }
 
 #define __arch_swab32 __arch_swab32
-#elif !defined(__uClinux__)
+#elif !defined(__mcoldfire__)
 
 static inline __attribute_const__ __u32 __arch_swab32(__u32 val)
 {
diff --git a/arch/m68k/include/asm/thread_info_mm.h b/arch/m68k/include/asm/thread_info_mm.h
index 167e518db41b..67266c683453 100644
--- a/arch/m68k/include/asm/thread_info_mm.h
+++ b/arch/m68k/include/asm/thread_info_mm.h
@@ -16,6 +16,7 @@ struct thread_info {
 	struct exec_domain	*exec_domain;	/* execution domain */
 	int			preempt_count;	/* 0 => preemptable, <0 => BUG */
 	__u32 cpu; /* should always be 0 on m68k */
+	unsigned long		tp_value;	/* thread pointer */
 	struct restart_block    restart_block;
 };
 #endif /* __ASSEMBLY__ */
diff --git a/arch/m68k/include/asm/thread_info_no.h b/arch/m68k/include/asm/thread_info_no.h
index a6512bfdd01d..884776f686ca 100644
--- a/arch/m68k/include/asm/thread_info_no.h
+++ b/arch/m68k/include/asm/thread_info_no.h
@@ -37,6 +37,7 @@ struct thread_info {
 	unsigned long	   flags;		/* low level flags */
 	int		   cpu;			/* cpu we're on */
 	int		   preempt_count;	/* 0 => preemptable, <0 => BUG */
+	unsigned long	   tp_value;		/* thread pointer */
 	struct restart_block restart_block;
 };
 
diff --git a/arch/m68k/include/asm/ucontext.h b/arch/m68k/include/asm/ucontext.h
index e4e22669edc0..00dcc5176c57 100644
--- a/arch/m68k/include/asm/ucontext.h
+++ b/arch/m68k/include/asm/ucontext.h
@@ -7,7 +7,11 @@ typedef greg_t gregset_t[NGREG];
 
 typedef struct fpregset {
 	int f_fpcntl[3];
+#ifdef __mcoldfire__
+	int f_fpregs[8][2];
+#else
 	int f_fpregs[8*3];
+#endif
 } fpregset_t;
 
 struct mcontext {
diff --git a/arch/m68k/include/asm/unistd.h b/arch/m68k/include/asm/unistd.h
index 48b87f5ced50..d72a71dabecb 100644
--- a/arch/m68k/include/asm/unistd.h
+++ b/arch/m68k/include/asm/unistd.h
@@ -336,10 +336,14 @@
 #define __NR_pwritev		330
 #define __NR_rt_tgsigqueueinfo	331
 #define __NR_perf_event_open	332
+#define __NR_get_thread_area	333
+#define __NR_set_thread_area	334
+#define __NR_atomic_cmpxchg_32	335
+#define __NR_atomic_barrier	336
 
 #ifdef __KERNEL__
 
-#define NR_syscalls		333
+#define NR_syscalls		337
 
 #define __ARCH_WANT_IPC_PARSE_VERSION
 #define __ARCH_WANT_OLD_READDIR
diff --git a/arch/m68k/include/asm/virtconvert.h b/arch/m68k/include/asm/virtconvert.h
index 3f834b3ab5bd..f35229b8651d 100644
--- a/arch/m68k/include/asm/virtconvert.h
+++ b/arch/m68k/include/asm/virtconvert.h
@@ -31,12 +31,7 @@ static inline void *phys_to_virt(unsigned long address)
 #define page_to_phys(page) \
 	__pa(PAGE_OFFSET + (((page) - pg_data_map[0].node_mem_map) << PAGE_SHIFT))
 #else
-#define page_to_phys(_page) ({						\
-	struct page *__page = _page;					\
-	struct pglist_data *pgdat;					\
-	pgdat = pg_data_table[page_to_nid(__page)];			\
-	page_to_pfn(__page) << PAGE_SHIFT;				\
-})
+#define page_to_phys(page)	(page_to_pfn(page) << PAGE_SHIFT)
 #endif
 #else
 #define page_to_phys(page)	(((page) - mem_map) << PAGE_SHIFT)
diff --git a/arch/m68k/kernel/entry.S b/arch/m68k/kernel/entry.S
index 77fc7c16bf48..e136b8cbe9b9 100644
--- a/arch/m68k/kernel/entry.S
+++ b/arch/m68k/kernel/entry.S
@@ -761,4 +761,8 @@ sys_call_table:
 	.long sys_pwritev		/* 330 */
 	.long sys_rt_tgsigqueueinfo
 	.long sys_perf_event_open
+	.long sys_get_thread_area
+	.long sys_set_thread_area
+	.long sys_atomic_cmpxchg_32	/* 335 */
+	.long sys_atomic_barrier
 
diff --git a/arch/m68k/kernel/process.c b/arch/m68k/kernel/process.c
index 05296593e718..17c3f325255d 100644
--- a/arch/m68k/kernel/process.c
+++ b/arch/m68k/kernel/process.c
@@ -251,6 +251,10 @@ int copy_thread(unsigned long clone_flags, unsigned long usp,
 
 	p->thread.usp = usp;
 	p->thread.ksp = (unsigned long)childstack;
+
+	if (clone_flags & CLONE_SETTLS)
+		task_thread_info(p)->tp_value = regs->d5;
+
 	/*
 	 * Must save the current SFC/DFC value, NOT the value when
 	 * the parent was last descheduled - RGH  10-08-96
diff --git a/arch/m68k/kernel/ptrace.c b/arch/m68k/kernel/ptrace.c
index 1fc217e5f06b..616e59752c29 100644
--- a/arch/m68k/kernel/ptrace.c
+++ b/arch/m68k/kernel/ptrace.c
@@ -245,6 +245,11 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
 			ret = -EFAULT;
 		break;
 
+	case PTRACE_GET_THREAD_AREA:
+		ret = put_user(task_thread_info(child)->tp_value,
+			       (unsigned long __user *)data);
+		break;
+
 	default:
 		ret = ptrace_request(child, request, addr, data);
 		break;
diff --git a/arch/m68k/kernel/signal.c b/arch/m68k/kernel/signal.c
index de2d05ddd86d..4b387538706f 100644
--- a/arch/m68k/kernel/signal.c
+++ b/arch/m68k/kernel/signal.c
@@ -897,10 +897,17 @@ static void setup_rt_frame (int sig, struct k_sigaction *ka, siginfo_t *info,
 
 	/* Set up to return from userspace.  */
 	err |= __put_user(frame->retcode, &frame->pretcode);
+#ifdef __mcoldfire__
+	/* movel #__NR_rt_sigreturn,d0; trap #0 */
+	err |= __put_user(0x203c0000, (long __user *)(frame->retcode + 0));
+	err |= __put_user(0x00004e40 + (__NR_rt_sigreturn << 16),
+			  (long __user *)(frame->retcode + 4));
+#else
 	/* moveq #,d0; notb d0; trap #0 */
 	err |= __put_user(0x70004600 + ((__NR_rt_sigreturn ^ 0xff) << 16),
 			  (long __user *)(frame->retcode + 0));
 	err |= __put_user(0x4e40, (short __user *)(frame->retcode + 4));
+#endif
 
 	if (err)
 		goto give_sigsegv;
diff --git a/arch/m68k/kernel/sys_m68k.c b/arch/m68k/kernel/sys_m68k.c
index 218f441de667..e3ad2d671973 100644
--- a/arch/m68k/kernel/sys_m68k.c
+++ b/arch/m68k/kernel/sys_m68k.c
@@ -28,6 +28,11 @@
 #include <asm/traps.h>
 #include <asm/page.h>
 #include <asm/unistd.h>
+#include <linux/elf.h>
+#include <asm/tlb.h>
+
+asmlinkage int do_page_fault(struct pt_regs *regs, unsigned long address,
+			     unsigned long error_code);
 
 asmlinkage long sys_mmap2(unsigned long addr, unsigned long len,
 	unsigned long prot, unsigned long flags,
@@ -595,3 +600,79 @@ int kernel_execve(const char *filename, char *const argv[], char *const envp[])
 			: "d" (__a), "d" (__b), "d" (__c));
 	return __res;
 }
+
+asmlinkage unsigned long sys_get_thread_area(void)
+{
+	return current_thread_info()->tp_value;
+}
+
+asmlinkage int sys_set_thread_area(unsigned long tp)
+{
+	current_thread_info()->tp_value = tp;
+	return 0;
+}
+
+/* This syscall gets its arguments in A0 (mem), D2 (oldval) and
+   D1 (newval).  */
+asmlinkage int
+sys_atomic_cmpxchg_32(unsigned long newval, int oldval, int d3, int d4, int d5,
+		      unsigned long __user * mem)
+{
+	/* This was borrowed from ARM's implementation.  */
+	for (;;) {
+		struct mm_struct *mm = current->mm;
+		pgd_t *pgd;
+		pmd_t *pmd;
+		pte_t *pte;
+		spinlock_t *ptl;
+		unsigned long mem_value;
+
+		down_read(&mm->mmap_sem);
+		pgd = pgd_offset(mm, (unsigned long)mem);
+		if (!pgd_present(*pgd))
+			goto bad_access;
+		pmd = pmd_offset(pgd, (unsigned long)mem);
+		if (!pmd_present(*pmd))
+			goto bad_access;
+		pte = pte_offset_map_lock(mm, pmd, (unsigned long)mem, &ptl);
+		if (!pte_present(*pte) || !pte_dirty(*pte)
+		    || !pte_write(*pte)) {
+			pte_unmap_unlock(pte, ptl);
+			goto bad_access;
+		}
+
+		mem_value = *mem;
+		if (mem_value == oldval)
+			*mem = newval;
+
+		pte_unmap_unlock(pte, ptl);
+		up_read(&mm->mmap_sem);
+		return mem_value;
+
+	      bad_access:
+		up_read(&mm->mmap_sem);
+		/* This is not necessarily a bad access, we can get here if
+		   a memory we're trying to write to should be copied-on-write.
+		   Make the kernel do the necessary page stuff, then re-iterate.
+		   Simulate a write access fault to do that.  */
+		{
+			/* The first argument of the function corresponds to
+			   D1, which is the first field of struct pt_regs.  */
+			struct pt_regs *fp = (struct pt_regs *)&newval;
+
+			/* '3' is an RMW flag.  */
+			if (do_page_fault(fp, (unsigned long)mem, 3))
+				/* If the do_page_fault() failed, we don't
+				   have anything meaningful to return.
+				   There should be a SIGSEGV pending for
+				   the process.  */
+				return 0xdeadbeef;
+		}
+	}
+}
+
+asmlinkage int sys_atomic_barrier(void)
+{
+	/* no code needed for uniprocs */
+	return 0;
+}
diff --git a/arch/m68k/mac/Makefile b/arch/m68k/mac/Makefile
index daebd80bdef0..b8d4c835f9a2 100644
--- a/arch/m68k/mac/Makefile
+++ b/arch/m68k/mac/Makefile
@@ -3,4 +3,4 @@
 #
 
 obj-y		:= config.o macints.o iop.o via.o oss.o psc.o \
-			baboon.o macboing.o debug.o misc.o
+			baboon.o macboing.o misc.o
diff --git a/arch/m68k/mac/config.c b/arch/m68k/mac/config.c
index be017984a456..0356da9bf763 100644
--- a/arch/m68k/mac/config.c
+++ b/arch/m68k/mac/config.c
@@ -23,6 +23,8 @@
 #include <linux/init.h>
 #include <linux/vt_kern.h>
 #include <linux/platform_device.h>
+#include <linux/adb.h>
+#include <linux/cuda.h>
 
 #define BOOTINFO_COMPAT_1_0
 #include <asm/setup.h>
@@ -44,12 +46,7 @@
 #include <asm/mac_oss.h>
 #include <asm/mac_psc.h>
 
-/* platform device info */
-
-#define SWIM_IO_SIZE 0x2000	/* SWIM IO resource size */
-
 /* Mac bootinfo struct */
-
 struct mac_booter_data mac_bi_data;
 
 /* The phys. video addr. - might be bogus on some machines */
@@ -70,8 +67,6 @@ extern void baboon_init(void);
 
 extern void mac_mksound(unsigned int, unsigned int);
 
-extern void nubus_sweep_video(void);
-
 static void mac_get_model(char *str);
 static void mac_identify(void);
 static void mac_report_hardware(void);
@@ -168,12 +163,6 @@ void __init config_mac(void)
 #if defined(CONFIG_INPUT_M68K_BEEP) || defined(CONFIG_INPUT_M68K_BEEP_MODULE)
 	mach_beep = mac_mksound;
 #endif
-#ifdef CONFIG_HEARTBEAT
-#if 0
-	mach_heartbeat = mac_heartbeat;
-	mach_heartbeat_irq = IRQ_MAC_TIMER;
-#endif
-#endif
 
 	/*
 	 * Determine hardware present
@@ -191,27 +180,19 @@ void __init config_mac(void)
 	if (macintosh_config->ident == MAC_MODEL_IICI
 	    || macintosh_config->ident == MAC_MODEL_IIFX)
 		mach_l2_flush = mac_cache_card_flush;
-
-	/*
-	 * Check for machine specific fixups.
-	 */
-
-#ifdef OLD_NUBUS_CODE
-	nubus_sweep_video();
-#endif
 }
 
 
 /*
- *	Macintosh Table: hardcoded model configuration data.
+ * Macintosh Table: hardcoded model configuration data.
  *
- *	Much of this was defined by Alan, based on who knows what docs.
- *	I've added a lot more, and some of that was pure guesswork based
- *	on hardware pages present on the Mac web site. Possibly wildly
- *	inaccurate, so look here if a new Mac model won't run. Example: if
- *	a Mac crashes immediately after the VIA1 registers have been dumped
- *	to the screen, it probably died attempting to read DirB on a RBV.
- *	Meaning it should have MAC_VIA_IIci here :-)
+ * Much of this was defined by Alan, based on who knows what docs.
+ * I've added a lot more, and some of that was pure guesswork based
+ * on hardware pages present on the Mac web site. Possibly wildly
+ * inaccurate, so look here if a new Mac model won't run. Example: if
+ * a Mac crashes immediately after the VIA1 registers have been dumped
+ * to the screen, it probably died attempting to read DirB on a RBV.
+ * Meaning it should have MAC_VIA_IIci here :-)
  */
 
 struct mac_model *macintosh_config;
@@ -219,7 +200,7 @@ EXPORT_SYMBOL(macintosh_config);
 
 static struct mac_model mac_data_table[] = {
 	/*
-	 *	We'll pretend to be a Macintosh II, that's pretty safe.
+	 * We'll pretend to be a Macintosh II, that's pretty safe.
 	 */
 
 	{
@@ -230,12 +211,11 @@ static struct mac_model mac_data_table[] = {
 		.scsi_type	= MAC_SCSI_OLD,
 		.scc_type	= MAC_SCC_II,
 		.nubus_type	= MAC_NUBUS,
-		.floppy_type	= MAC_FLOPPY_IWM
+		.floppy_type	= MAC_FLOPPY_IWM,
 	},
 
 	/*
-	 *	Original MacII hardware
-	 *
+	 * Original Mac II hardware
 	 */
 
 	{
@@ -246,7 +226,7 @@ static struct mac_model mac_data_table[] = {
 		.scsi_type	= MAC_SCSI_OLD,
 		.scc_type	= MAC_SCC_II,
 		.nubus_type	= MAC_NUBUS,
-		.floppy_type	= MAC_FLOPPY_IWM
+		.floppy_type	= MAC_FLOPPY_IWM,
 	}, {
 		.ident		= MAC_MODEL_IIX,
 		.name		= "IIx",
@@ -255,7 +235,7 @@ static struct mac_model mac_data_table[] = {
 		.scsi_type	= MAC_SCSI_OLD,
 		.scc_type	= MAC_SCC_II,
 		.nubus_type	= MAC_NUBUS,
-		.floppy_type	= MAC_FLOPPY_SWIM_ADDR2
+		.floppy_type	= MAC_FLOPPY_SWIM_ADDR2,
 	}, {
 		.ident		= MAC_MODEL_IICX,
 		.name		= "IIcx",
@@ -264,7 +244,7 @@ static struct mac_model mac_data_table[] = {
 		.scsi_type	= MAC_SCSI_OLD,
 		.scc_type	= MAC_SCC_II,
 		.nubus_type	= MAC_NUBUS,
-		.floppy_type    = MAC_FLOPPY_SWIM_ADDR2
+		.floppy_type	= MAC_FLOPPY_SWIM_ADDR2,
 	}, {
 		.ident		= MAC_MODEL_SE30,
 		.name		= "SE/30",
@@ -273,13 +253,13 @@ static struct mac_model mac_data_table[] = {
 		.scsi_type	= MAC_SCSI_OLD,
 		.scc_type	= MAC_SCC_II,
 		.nubus_type	= MAC_NUBUS,
-		.floppy_type    = MAC_FLOPPY_SWIM_ADDR2
+		.floppy_type	= MAC_FLOPPY_SWIM_ADDR2,
 	},
 
 	/*
-	 *	Weirdified MacII hardware - all subtly different. Gee thanks
-	 *	Apple. All these boxes seem to have VIA2 in a different place to
-	 *	the MacII (+1A000 rather than +4000)
+	 * Weirdified Mac II hardware - all subtly different. Gee thanks
+	 * Apple. All these boxes seem to have VIA2 in a different place to
+	 * the Mac II (+1A000 rather than +4000)
 	 * CSA: see http://developer.apple.com/technotes/hw/hw_09.html
 	 */
 
@@ -291,7 +271,7 @@ static struct mac_model mac_data_table[] = {
 		.scsi_type	= MAC_SCSI_OLD,
 		.scc_type	= MAC_SCC_II,
 		.nubus_type	= MAC_NUBUS,
-		.floppy_type    = MAC_FLOPPY_SWIM_ADDR2
+		.floppy_type	= MAC_FLOPPY_SWIM_ADDR2,
 	}, {
 		.ident		= MAC_MODEL_IIFX,
 		.name		= "IIfx",
@@ -300,7 +280,7 @@ static struct mac_model mac_data_table[] = {
 		.scsi_type	= MAC_SCSI_OLD,
 		.scc_type	= MAC_SCC_IOP,
 		.nubus_type	= MAC_NUBUS,
-		.floppy_type    = MAC_FLOPPY_SWIM_IOP
+		.floppy_type	= MAC_FLOPPY_SWIM_IOP,
 	}, {
 		.ident		= MAC_MODEL_IISI,
 		.name		= "IIsi",
@@ -309,7 +289,7 @@ static struct mac_model mac_data_table[] = {
 		.scsi_type	= MAC_SCSI_OLD,
 		.scc_type	= MAC_SCC_II,
 		.nubus_type	= MAC_NUBUS,
-		.floppy_type    = MAC_FLOPPY_SWIM_ADDR2
+		.floppy_type	= MAC_FLOPPY_SWIM_ADDR2,
 	}, {
 		.ident		= MAC_MODEL_IIVI,
 		.name		= "IIvi",
@@ -318,7 +298,7 @@ static struct mac_model mac_data_table[] = {
 		.scsi_type	= MAC_SCSI_OLD,
 		.scc_type	= MAC_SCC_II,
 		.nubus_type	= MAC_NUBUS,
-		.floppy_type    = MAC_FLOPPY_SWIM_ADDR2
+		.floppy_type	= MAC_FLOPPY_SWIM_ADDR2,
 	}, {
 		.ident		= MAC_MODEL_IIVX,
 		.name		= "IIvx",
@@ -327,11 +307,11 @@ static struct mac_model mac_data_table[] = {
 		.scsi_type	= MAC_SCSI_OLD,
 		.scc_type	= MAC_SCC_II,
 		.nubus_type	= MAC_NUBUS,
-		.floppy_type    = MAC_FLOPPY_SWIM_ADDR2
+		.floppy_type	= MAC_FLOPPY_SWIM_ADDR2,
 	},
 
 	/*
-	 *	Classic models (guessing: similar to SE/30 ?? Nope, similar to LC ...)
+	 * Classic models (guessing: similar to SE/30? Nope, similar to LC...)
 	 */
 
 	{
@@ -342,7 +322,7 @@ static struct mac_model mac_data_table[] = {
 		.scsi_type	= MAC_SCSI_OLD,
 		.scc_type	= MAC_SCC_II,
 		.nubus_type	= MAC_NUBUS,
-		.floppy_type    = MAC_FLOPPY_SWIM_ADDR2
+		.floppy_type	= MAC_FLOPPY_SWIM_ADDR2,
 	}, {
 		.ident		= MAC_MODEL_CCL,
 		.name		= "Color Classic",
@@ -351,11 +331,11 @@ static struct mac_model mac_data_table[] = {
 		.scsi_type	= MAC_SCSI_OLD,
 		.scc_type	= MAC_SCC_II,
 		.nubus_type	= MAC_NUBUS,
-		.floppy_type    = MAC_FLOPPY_SWIM_ADDR2
+		.floppy_type	= MAC_FLOPPY_SWIM_ADDR2,
 	},
 
 	/*
-	 *	Some Mac LC machines. Basically the same as the IIci, ADB like IIsi
+	 * Some Mac LC machines. Basically the same as the IIci, ADB like IIsi
 	 */
 
 	{
@@ -366,7 +346,7 @@ static struct mac_model mac_data_table[] = {
 		.scsi_type	= MAC_SCSI_OLD,
 		.scc_type	= MAC_SCC_II,
 		.nubus_type	= MAC_NUBUS,
-		.floppy_type    = MAC_FLOPPY_SWIM_ADDR2
+		.floppy_type	= MAC_FLOPPY_SWIM_ADDR2,
 	}, {
 		.ident		= MAC_MODEL_LCII,
 		.name		= "LC II",
@@ -375,7 +355,7 @@ static struct mac_model mac_data_table[] = {
 		.scsi_type	= MAC_SCSI_OLD,
 		.scc_type	= MAC_SCC_II,
 		.nubus_type	= MAC_NUBUS,
-		.floppy_type    = MAC_FLOPPY_SWIM_ADDR2
+		.floppy_type	= MAC_FLOPPY_SWIM_ADDR2,
 	}, {
 		.ident		= MAC_MODEL_LCIII,
 		.name		= "LC III",
@@ -384,17 +364,17 @@ static struct mac_model mac_data_table[] = {
 		.scsi_type	= MAC_SCSI_OLD,
 		.scc_type	= MAC_SCC_II,
 		.nubus_type	= MAC_NUBUS,
-		.floppy_type    = MAC_FLOPPY_SWIM_ADDR2
+		.floppy_type	= MAC_FLOPPY_SWIM_ADDR2,
 	},
 
 	/*
-	 *	Quadra. Video is at 0xF9000000, via is like a MacII. We label it differently
-	 *	as some of the stuff connected to VIA2 seems different. Better SCSI chip and
-	 *	onboard ethernet using a NatSemi SONIC except the 660AV and 840AV which use an
-	 *	AMD 79C940 (MACE).
-	 *	The 700, 900 and 950 have some I/O chips in the wrong place to
-	 *	confuse us. The 840AV has a SCSI location of its own (same as
-	 *	the 660AV).
+	 * Quadra. Video is at 0xF9000000, via is like a MacII. We label it
+	 * differently as some of the stuff connected to VIA2 seems different.
+	 * Better SCSI chip and onboard ethernet using a NatSemi SONIC except
+	 * the 660AV and 840AV which use an AMD 79C940 (MACE).
+	 * The 700, 900 and 950 have some I/O chips in the wrong place to
+	 * confuse us. The 840AV has a SCSI location of its own (same as
+	 * the 660AV).
 	 */
 
 	{
@@ -405,7 +385,7 @@ static struct mac_model mac_data_table[] = {
 		.scsi_type	= MAC_SCSI_QUADRA,
 		.scc_type	= MAC_SCC_QUADRA,
 		.nubus_type	= MAC_NUBUS,
-		.floppy_type	= MAC_FLOPPY_SWIM_ADDR1
+		.floppy_type	= MAC_FLOPPY_SWIM_ADDR1,
 	}, {
 		.ident		= MAC_MODEL_Q605_ACC,
 		.name		= "Quadra 605",
@@ -414,7 +394,7 @@ static struct mac_model mac_data_table[] = {
 		.scsi_type	= MAC_SCSI_QUADRA,
 		.scc_type	= MAC_SCC_QUADRA,
 		.nubus_type	= MAC_NUBUS,
-		.floppy_type	= MAC_FLOPPY_SWIM_ADDR1
+		.floppy_type	= MAC_FLOPPY_SWIM_ADDR1,
 	}, {
 		.ident		= MAC_MODEL_Q610,
 		.name		= "Quadra 610",
@@ -424,7 +404,7 @@ static struct mac_model mac_data_table[] = {
 		.scc_type	= MAC_SCC_QUADRA,
 		.ether_type	= MAC_ETHER_SONIC,
 		.nubus_type	= MAC_NUBUS,
-		.floppy_type	= MAC_FLOPPY_SWIM_ADDR1
+		.floppy_type	= MAC_FLOPPY_SWIM_ADDR1,
 	}, {
 		.ident		= MAC_MODEL_Q630,
 		.name		= "Quadra 630",
@@ -435,7 +415,7 @@ static struct mac_model mac_data_table[] = {
 		.scc_type	= MAC_SCC_QUADRA,
 		.ether_type	= MAC_ETHER_SONIC,
 		.nubus_type	= MAC_NUBUS,
-		.floppy_type	= MAC_FLOPPY_SWIM_ADDR1
+		.floppy_type	= MAC_FLOPPY_SWIM_ADDR1,
 	}, {
 		.ident		= MAC_MODEL_Q650,
 		.name		= "Quadra 650",
@@ -445,9 +425,9 @@ static struct mac_model mac_data_table[] = {
 		.scc_type	= MAC_SCC_QUADRA,
 		.ether_type	= MAC_ETHER_SONIC,
 		.nubus_type	= MAC_NUBUS,
-		.floppy_type	= MAC_FLOPPY_SWIM_ADDR1
+		.floppy_type	= MAC_FLOPPY_SWIM_ADDR1,
 	},
-	/*	The Q700 does have a NS Sonic */
+	/* The Q700 does have a NS Sonic */
 	{
 		.ident		= MAC_MODEL_Q700,
 		.name		= "Quadra 700",
@@ -457,7 +437,7 @@ static struct mac_model mac_data_table[] = {
 		.scc_type	= MAC_SCC_QUADRA,
 		.ether_type	= MAC_ETHER_SONIC,
 		.nubus_type	= MAC_NUBUS,
-		.floppy_type	= MAC_FLOPPY_SWIM_ADDR1
+		.floppy_type	= MAC_FLOPPY_SWIM_ADDR1,
 	}, {
 		.ident		= MAC_MODEL_Q800,
 		.name		= "Quadra 800",
@@ -467,7 +447,7 @@ static struct mac_model mac_data_table[] = {
 		.scc_type	= MAC_SCC_QUADRA,
 		.ether_type	= MAC_ETHER_SONIC,
 		.nubus_type	= MAC_NUBUS,
-		.floppy_type	= MAC_FLOPPY_SWIM_ADDR1
+		.floppy_type	= MAC_FLOPPY_SWIM_ADDR1,
 	}, {
 		.ident		= MAC_MODEL_Q840,
 		.name		= "Quadra 840AV",
@@ -477,7 +457,7 @@ static struct mac_model mac_data_table[] = {
 		.scc_type	= MAC_SCC_PSC,
 		.ether_type	= MAC_ETHER_MACE,
 		.nubus_type	= MAC_NUBUS,
-		.floppy_type    = MAC_FLOPPY_AV
+		.floppy_type	= MAC_FLOPPY_AV,
 	}, {
 		.ident		= MAC_MODEL_Q900,
 		.name		= "Quadra 900",
@@ -487,7 +467,7 @@ static struct mac_model mac_data_table[] = {
 		.scc_type	= MAC_SCC_IOP,
 		.ether_type	= MAC_ETHER_SONIC,
 		.nubus_type	= MAC_NUBUS,
-		.floppy_type    = MAC_FLOPPY_SWIM_IOP
+		.floppy_type	= MAC_FLOPPY_SWIM_IOP,
 	}, {
 		.ident		= MAC_MODEL_Q950,
 		.name		= "Quadra 950",
@@ -497,60 +477,60 @@ static struct mac_model mac_data_table[] = {
 		.scc_type	= MAC_SCC_IOP,
 		.ether_type	= MAC_ETHER_SONIC,
 		.nubus_type	= MAC_NUBUS,
-		.floppy_type    = MAC_FLOPPY_SWIM_IOP
+		.floppy_type	= MAC_FLOPPY_SWIM_IOP,
 	},
 
 	/*
-	 *	Performa - more LC type machines
+	 * Performa - more LC type machines
 	 */
 
 	{
 		.ident		= MAC_MODEL_P460,
-		.name		=  "Performa 460",
+		.name		= "Performa 460",
 		.adb_type	= MAC_ADB_IISI,
 		.via_type	= MAC_VIA_IIci,
 		.scsi_type	= MAC_SCSI_OLD,
 		.scc_type	= MAC_SCC_II,
 		.nubus_type	= MAC_NUBUS,
-		.floppy_type    = MAC_FLOPPY_SWIM_ADDR2
+		.floppy_type	= MAC_FLOPPY_SWIM_ADDR2,
 	}, {
 		.ident		= MAC_MODEL_P475,
-		.name		=  "Performa 475",
+		.name		= "Performa 475",
 		.adb_type	= MAC_ADB_CUDA,
 		.via_type	= MAC_VIA_QUADRA,
 		.scsi_type	= MAC_SCSI_QUADRA,
 		.scc_type	= MAC_SCC_II,
 		.nubus_type	= MAC_NUBUS,
-		.floppy_type	= MAC_FLOPPY_SWIM_ADDR1
+		.floppy_type	= MAC_FLOPPY_SWIM_ADDR1,
 	}, {
 		.ident		= MAC_MODEL_P475F,
-		.name		=  "Performa 475",
+		.name		= "Performa 475",
 		.adb_type	= MAC_ADB_CUDA,
 		.via_type	= MAC_VIA_QUADRA,
 		.scsi_type	= MAC_SCSI_QUADRA,
 		.scc_type	= MAC_SCC_II,
 		.nubus_type	= MAC_NUBUS,
-		.floppy_type	= MAC_FLOPPY_SWIM_ADDR1
+		.floppy_type	= MAC_FLOPPY_SWIM_ADDR1,
 	}, {
 		.ident		= MAC_MODEL_P520,
-		.name		=  "Performa 520",
+		.name		= "Performa 520",
 		.adb_type	= MAC_ADB_CUDA,
 		.via_type	= MAC_VIA_IIci,
 		.scsi_type	= MAC_SCSI_OLD,
 		.scc_type	= MAC_SCC_II,
 		.nubus_type	= MAC_NUBUS,
-		.floppy_type    = MAC_FLOPPY_SWIM_ADDR2
+		.floppy_type	= MAC_FLOPPY_SWIM_ADDR2,
 	}, {
 		.ident		= MAC_MODEL_P550,
-		.name		=  "Performa 550",
+		.name		= "Performa 550",
 		.adb_type	= MAC_ADB_CUDA,
 		.via_type	= MAC_VIA_IIci,
 		.scsi_type	= MAC_SCSI_OLD,
 		.scc_type	= MAC_SCC_II,
 		.nubus_type	= MAC_NUBUS,
-		.floppy_type    = MAC_FLOPPY_SWIM_ADDR2
+		.floppy_type	= MAC_FLOPPY_SWIM_ADDR2,
 	},
-	/* These have the comm slot, and therefore the possibility of SONIC ethernet */
+	/* These have the comm slot, and therefore possibly SONIC ethernet */
 	{
 		.ident		= MAC_MODEL_P575,
 		.name		= "Performa 575",
@@ -560,7 +540,7 @@ static struct mac_model mac_data_table[] = {
 		.scc_type	= MAC_SCC_II,
 		.ether_type	= MAC_ETHER_SONIC,
 		.nubus_type	= MAC_NUBUS,
-		.floppy_type	= MAC_FLOPPY_SWIM_ADDR1
+		.floppy_type	= MAC_FLOPPY_SWIM_ADDR1,
 	}, {
 		.ident		= MAC_MODEL_P588,
 		.name		= "Performa 588",
@@ -571,7 +551,7 @@ static struct mac_model mac_data_table[] = {
 		.scc_type	= MAC_SCC_II,
 		.ether_type	= MAC_ETHER_SONIC,
 		.nubus_type	= MAC_NUBUS,
-		.floppy_type	= MAC_FLOPPY_SWIM_ADDR1
+		.floppy_type	= MAC_FLOPPY_SWIM_ADDR1,
 	}, {
 		.ident		= MAC_MODEL_TV,
 		.name		= "TV",
@@ -580,7 +560,7 @@ static struct mac_model mac_data_table[] = {
 		.scsi_type	= MAC_SCSI_OLD,
 		.scc_type	= MAC_SCC_II,
 		.nubus_type	= MAC_NUBUS,
-		.floppy_type    = MAC_FLOPPY_SWIM_ADDR2
+		.floppy_type	= MAC_FLOPPY_SWIM_ADDR2,
 	}, {
 		.ident		= MAC_MODEL_P600,
 		.name		= "Performa 600",
@@ -589,14 +569,14 @@ static struct mac_model mac_data_table[] = {
 		.scsi_type	= MAC_SCSI_OLD,
 		.scc_type	= MAC_SCC_II,
 		.nubus_type	= MAC_NUBUS,
-		.floppy_type    = MAC_FLOPPY_SWIM_ADDR2
+		.floppy_type	= MAC_FLOPPY_SWIM_ADDR2,
 	},
 
 	/*
-	 *	Centris - just guessing again; maybe like Quadra
+	 * Centris - just guessing again; maybe like Quadra.
+	 * The C610 may or may not have SONIC. We probe to make sure.
 	 */
 
-	/* The C610 may or may not have SONIC.  We probe to make sure */
 	{
 		.ident		= MAC_MODEL_C610,
 		.name		= "Centris 610",
@@ -606,7 +586,7 @@ static struct mac_model mac_data_table[] = {
 		.scc_type	= MAC_SCC_QUADRA,
 		.ether_type	= MAC_ETHER_SONIC,
 		.nubus_type	= MAC_NUBUS,
-		.floppy_type    = MAC_FLOPPY_SWIM_ADDR1
+		.floppy_type	= MAC_FLOPPY_SWIM_ADDR1,
 	}, {
 		.ident		= MAC_MODEL_C650,
 		.name		= "Centris 650",
@@ -616,7 +596,7 @@ static struct mac_model mac_data_table[] = {
 		.scc_type	= MAC_SCC_QUADRA,
 		.ether_type	= MAC_ETHER_SONIC,
 		.nubus_type	= MAC_NUBUS,
-		.floppy_type    = MAC_FLOPPY_SWIM_ADDR1
+		.floppy_type	= MAC_FLOPPY_SWIM_ADDR1,
 	}, {
 		.ident		= MAC_MODEL_C660,
 		.name		= "Centris 660AV",
@@ -626,7 +606,7 @@ static struct mac_model mac_data_table[] = {
 		.scc_type	= MAC_SCC_PSC,
 		.ether_type	= MAC_ETHER_MACE,
 		.nubus_type	= MAC_NUBUS,
-		.floppy_type    = MAC_FLOPPY_AV
+		.floppy_type	= MAC_FLOPPY_AV,
 	},
 
 	/*
@@ -643,7 +623,7 @@ static struct mac_model mac_data_table[] = {
 		.scsi_type	= MAC_SCSI_OLD,
 		.scc_type	= MAC_SCC_QUADRA,
 		.nubus_type	= MAC_NUBUS,
-		.floppy_type    = MAC_FLOPPY_SWIM_ADDR2
+		.floppy_type	= MAC_FLOPPY_SWIM_ADDR2,
 	}, {
 		.ident		= MAC_MODEL_PB145,
 		.name		= "PowerBook 145",
@@ -652,7 +632,7 @@ static struct mac_model mac_data_table[] = {
 		.scsi_type	= MAC_SCSI_OLD,
 		.scc_type	= MAC_SCC_QUADRA,
 		.nubus_type	= MAC_NUBUS,
-		.floppy_type    = MAC_FLOPPY_SWIM_ADDR2
+		.floppy_type	= MAC_FLOPPY_SWIM_ADDR2,
 	}, {
 		.ident		= MAC_MODEL_PB150,
 		.name		= "PowerBook 150",
@@ -662,7 +642,7 @@ static struct mac_model mac_data_table[] = {
 		.ide_type	= MAC_IDE_PB,
 		.scc_type	= MAC_SCC_QUADRA,
 		.nubus_type	= MAC_NUBUS,
-		.floppy_type    = MAC_FLOPPY_SWIM_ADDR2
+		.floppy_type	= MAC_FLOPPY_SWIM_ADDR2,
 	}, {
 		.ident		= MAC_MODEL_PB160,
 		.name		= "PowerBook 160",
@@ -671,7 +651,7 @@ static struct mac_model mac_data_table[] = {
 		.scsi_type	= MAC_SCSI_OLD,
 		.scc_type	= MAC_SCC_QUADRA,
 		.nubus_type	= MAC_NUBUS,
-		.floppy_type    = MAC_FLOPPY_SWIM_ADDR2
+		.floppy_type	= MAC_FLOPPY_SWIM_ADDR2,
 	}, {
 		.ident		= MAC_MODEL_PB165,
 		.name		= "PowerBook 165",
@@ -680,7 +660,7 @@ static struct mac_model mac_data_table[] = {
 		.scsi_type	= MAC_SCSI_OLD,
 		.scc_type	= MAC_SCC_QUADRA,
 		.nubus_type	= MAC_NUBUS,
-		.floppy_type    = MAC_FLOPPY_SWIM_ADDR2
+		.floppy_type	= MAC_FLOPPY_SWIM_ADDR2,
 	}, {
 		.ident		= MAC_MODEL_PB165C,
 		.name		= "PowerBook 165c",
@@ -689,7 +669,7 @@ static struct mac_model mac_data_table[] = {
 		.scsi_type	= MAC_SCSI_OLD,
 		.scc_type	= MAC_SCC_QUADRA,
 		.nubus_type	= MAC_NUBUS,
-		.floppy_type    = MAC_FLOPPY_SWIM_ADDR2
+		.floppy_type	= MAC_FLOPPY_SWIM_ADDR2,
 	}, {
 		.ident		= MAC_MODEL_PB170,
 		.name		= "PowerBook 170",
@@ -698,7 +678,7 @@ static struct mac_model mac_data_table[] = {
 		.scsi_type	= MAC_SCSI_OLD,
 		.scc_type	= MAC_SCC_QUADRA,
 		.nubus_type	= MAC_NUBUS,
-		.floppy_type    = MAC_FLOPPY_SWIM_ADDR2
+		.floppy_type	= MAC_FLOPPY_SWIM_ADDR2,
 	}, {
 		.ident		= MAC_MODEL_PB180,
 		.name		= "PowerBook 180",
@@ -707,7 +687,7 @@ static struct mac_model mac_data_table[] = {
 		.scsi_type	= MAC_SCSI_OLD,
 		.scc_type	= MAC_SCC_QUADRA,
 		.nubus_type	= MAC_NUBUS,
-		.floppy_type    = MAC_FLOPPY_SWIM_ADDR2
+		.floppy_type	= MAC_FLOPPY_SWIM_ADDR2,
 	}, {
 		.ident		= MAC_MODEL_PB180C,
 		.name		= "PowerBook 180c",
@@ -716,7 +696,7 @@ static struct mac_model mac_data_table[] = {
 		.scsi_type	= MAC_SCSI_OLD,
 		.scc_type	= MAC_SCC_QUADRA,
 		.nubus_type	= MAC_NUBUS,
-		.floppy_type    = MAC_FLOPPY_SWIM_ADDR2
+		.floppy_type	= MAC_FLOPPY_SWIM_ADDR2,
 	}, {
 		.ident		= MAC_MODEL_PB190,
 		.name		= "PowerBook 190",
@@ -726,7 +706,7 @@ static struct mac_model mac_data_table[] = {
 		.ide_type	= MAC_IDE_BABOON,
 		.scc_type	= MAC_SCC_QUADRA,
 		.nubus_type	= MAC_NUBUS,
-		.floppy_type    = MAC_FLOPPY_SWIM_ADDR2
+		.floppy_type	= MAC_FLOPPY_SWIM_ADDR2,
 	}, {
 		.ident		= MAC_MODEL_PB520,
 		.name		= "PowerBook 520",
@@ -736,7 +716,7 @@ static struct mac_model mac_data_table[] = {
 		.scc_type	= MAC_SCC_QUADRA,
 		.ether_type	= MAC_ETHER_SONIC,
 		.nubus_type	= MAC_NUBUS,
-		.floppy_type    = MAC_FLOPPY_SWIM_ADDR2
+		.floppy_type	= MAC_FLOPPY_SWIM_ADDR2,
 	},
 
 	/*
@@ -757,7 +737,7 @@ static struct mac_model mac_data_table[] = {
 		.scsi_type	= MAC_SCSI_OLD,
 		.scc_type	= MAC_SCC_QUADRA,
 		.nubus_type	= MAC_NUBUS,
-		.floppy_type    = MAC_FLOPPY_SWIM_ADDR2
+		.floppy_type	= MAC_FLOPPY_SWIM_ADDR2,
 	}, {
 		.ident		= MAC_MODEL_PB230,
 		.name		= "PowerBook Duo 230",
@@ -766,7 +746,7 @@ static struct mac_model mac_data_table[] = {
 		.scsi_type	= MAC_SCSI_OLD,
 		.scc_type	= MAC_SCC_QUADRA,
 		.nubus_type	= MAC_NUBUS,
-		.floppy_type    = MAC_FLOPPY_SWIM_ADDR2
+		.floppy_type	= MAC_FLOPPY_SWIM_ADDR2,
 	}, {
 		.ident		= MAC_MODEL_PB250,
 		.name		= "PowerBook Duo 250",
@@ -775,7 +755,7 @@ static struct mac_model mac_data_table[] = {
 		.scsi_type	= MAC_SCSI_OLD,
 		.scc_type	= MAC_SCC_QUADRA,
 		.nubus_type	= MAC_NUBUS,
-		.floppy_type    = MAC_FLOPPY_SWIM_ADDR2
+		.floppy_type	= MAC_FLOPPY_SWIM_ADDR2,
 	}, {
 		.ident		= MAC_MODEL_PB270C,
 		.name		= "PowerBook Duo 270c",
@@ -784,7 +764,7 @@ static struct mac_model mac_data_table[] = {
 		.scsi_type	= MAC_SCSI_OLD,
 		.scc_type	= MAC_SCC_QUADRA,
 		.nubus_type	= MAC_NUBUS,
-		.floppy_type    = MAC_FLOPPY_SWIM_ADDR2
+		.floppy_type	= MAC_FLOPPY_SWIM_ADDR2,
 	}, {
 		.ident		= MAC_MODEL_PB280,
 		.name		= "PowerBook Duo 280",
@@ -793,7 +773,7 @@ static struct mac_model mac_data_table[] = {
 		.scsi_type	= MAC_SCSI_OLD,
 		.scc_type	= MAC_SCC_QUADRA,
 		.nubus_type	= MAC_NUBUS,
-		.floppy_type    = MAC_FLOPPY_SWIM_ADDR2
+		.floppy_type	= MAC_FLOPPY_SWIM_ADDR2,
 	}, {
 		.ident		= MAC_MODEL_PB280C,
 		.name		= "PowerBook Duo 280c",
@@ -802,17 +782,44 @@ static struct mac_model mac_data_table[] = {
 		.scsi_type	= MAC_SCSI_OLD,
 		.scc_type	= MAC_SCC_QUADRA,
 		.nubus_type	= MAC_NUBUS,
-		.floppy_type    = MAC_FLOPPY_SWIM_ADDR2
+		.floppy_type	= MAC_FLOPPY_SWIM_ADDR2,
 	},
 
 	/*
-	 *	Other stuff ??
+	 * Other stuff?
 	 */
+
 	{
 		.ident		= -1
 	}
 };
 
+static struct resource scc_a_rsrcs[] = {
+	{ .flags = IORESOURCE_MEM },
+	{ .flags = IORESOURCE_IRQ },
+};
+
+static struct resource scc_b_rsrcs[] = {
+	{ .flags = IORESOURCE_MEM },
+	{ .flags = IORESOURCE_IRQ },
+};
+
+struct platform_device scc_a_pdev = {
+	.name           = "scc",
+	.id             = 0,
+	.num_resources  = ARRAY_SIZE(scc_a_rsrcs),
+	.resource       = scc_a_rsrcs,
+};
+EXPORT_SYMBOL(scc_a_pdev);
+
+struct platform_device scc_b_pdev = {
+	.name           = "scc",
+	.id             = 1,
+	.num_resources  = ARRAY_SIZE(scc_b_rsrcs),
+	.resource       = scc_b_rsrcs,
+};
+EXPORT_SYMBOL(scc_b_pdev);
+
 static void __init mac_identify(void)
 {
 	struct mac_model *m;
@@ -823,7 +830,8 @@ static void __init mac_identify(void)
 		/* no bootinfo model id -> NetBSD booter was used! */
 		/* XXX FIXME: breaks for model > 31 */
 		model = (mac_bi_data.cpuid >> 2) & 63;
-		printk(KERN_WARNING "No bootinfo model ID, using cpuid instead (hey, use Penguin!)\n");
+		printk(KERN_WARNING "No bootinfo model ID, using cpuid instead "
+		       "(obsolete bootloader?)\n");
 	}
 
 	macintosh_config = mac_data_table;
@@ -834,10 +842,29 @@ static void __init mac_identify(void)
 		}
 	}
 
-	/* We need to pre-init the IOPs, if any. Otherwise */
-	/* the serial console won't work if the user had   */
-	/* the serial ports set to "Faster" mode in MacOS. */
+	/* Set up serial port resources for the console initcall. */
+
+	scc_a_rsrcs[0].start = (resource_size_t) mac_bi_data.sccbase + 2;
+	scc_a_rsrcs[0].end   = scc_a_rsrcs[0].start;
+	scc_b_rsrcs[0].start = (resource_size_t) mac_bi_data.sccbase;
+	scc_b_rsrcs[0].end   = scc_b_rsrcs[0].start;
 
+	switch (macintosh_config->scc_type) {
+	case MAC_SCC_PSC:
+		scc_a_rsrcs[1].start = scc_a_rsrcs[1].end = IRQ_MAC_SCC_A;
+		scc_b_rsrcs[1].start = scc_b_rsrcs[1].end = IRQ_MAC_SCC_B;
+		break;
+	default:
+		scc_a_rsrcs[1].start = scc_a_rsrcs[1].end = IRQ_MAC_SCC;
+		scc_b_rsrcs[1].start = scc_b_rsrcs[1].end = IRQ_MAC_SCC;
+		break;
+	}
+
+	/*
+	 * We need to pre-init the IOPs, if any. Otherwise
+	 * the serial console won't work if the user had
+	 * the serial ports set to "Faster" mode in MacOS.
+	 */
 	iop_preinit();
 
 	printk(KERN_INFO "Detected Macintosh model: %d \n", model);
@@ -846,7 +873,8 @@ static void __init mac_identify(void)
 	 * Report booter data:
 	 */
 	printk(KERN_DEBUG " Penguin bootinfo data:\n");
-	printk(KERN_DEBUG " Video: addr 0x%lx row 0x%lx depth %lx dimensions %ld x %ld\n",
+	printk(KERN_DEBUG " Video: addr 0x%lx "
+		"row 0x%lx depth %lx dimensions %ld x %ld\n",
 		mac_bi_data.videoaddr, mac_bi_data.videorow,
 		mac_bi_data.videodepth, mac_bi_data.dimensions & 0xFFFF,
 		mac_bi_data.dimensions >> 16);
@@ -863,6 +891,10 @@ static void __init mac_identify(void)
 	oss_init();
 	psc_init();
 	baboon_init();
+
+#ifdef CONFIG_ADB_CUDA
+	find_via_cuda();
+#endif
 }
 
 static void __init mac_report_hardware(void)
@@ -876,23 +908,50 @@ static void mac_get_model(char *str)
 	strcat(str, macintosh_config->name);
 }
 
-static struct resource swim_resources[1];
+static struct resource swim_rsrc = { .flags = IORESOURCE_MEM };
 
-static struct platform_device swim_device = {
+static struct platform_device swim_pdev = {
 	.name		= "swim",
 	.id		= -1,
-	.num_resources	= ARRAY_SIZE(swim_resources),
-	.resource	= swim_resources,
+	.num_resources	= 1,
+	.resource	= &swim_rsrc,
 };
 
-static struct platform_device *mac_platform_devices[] __initdata = {
-	&swim_device
+static struct platform_device esp_0_pdev = {
+	.name		= "mac_esp",
+	.id		= 0,
+};
+
+static struct platform_device esp_1_pdev = {
+	.name		= "mac_esp",
+	.id		= 1,
+};
+
+static struct platform_device sonic_pdev = {
+	.name		= "macsonic",
+	.id		= -1,
+};
+
+static struct platform_device mace_pdev = {
+	.name		= "macmace",
+	.id		= -1,
 };
 
 int __init mac_platform_init(void)
 {
 	u8 *swim_base;
 
+	/*
+	 * Serial devices
+	 */
+
+	platform_device_register(&scc_a_pdev);
+	platform_device_register(&scc_b_pdev);
+
+	/*
+	 * Floppy device
+	 */
+
 	switch (macintosh_config->floppy_type) {
 	case MAC_FLOPPY_SWIM_ADDR1:
 		swim_base = (u8 *)(VIA1_BASE + 0x1E000);
@@ -901,16 +960,47 @@ int __init mac_platform_init(void)
 		swim_base = (u8 *)(VIA1_BASE + 0x16000);
 		break;
 	default:
-		return 0;
+		swim_base = NULL;
+		break;
 	}
 
-	swim_resources[0].name = "swim-regs";
-	swim_resources[0].start = (resource_size_t)swim_base;
-	swim_resources[0].end = (resource_size_t)(swim_base + SWIM_IO_SIZE);
-	swim_resources[0].flags = IORESOURCE_MEM;
+	if (swim_base) {
+		swim_rsrc.start = (resource_size_t) swim_base,
+		swim_rsrc.end   = (resource_size_t) swim_base + 0x2000,
+		platform_device_register(&swim_pdev);
+	}
+
+	/*
+	 * SCSI device(s)
+	 */
+
+	switch (macintosh_config->scsi_type) {
+	case MAC_SCSI_QUADRA:
+	case MAC_SCSI_QUADRA3:
+		platform_device_register(&esp_0_pdev);
+		break;
+	case MAC_SCSI_QUADRA2:
+		platform_device_register(&esp_0_pdev);
+		if ((macintosh_config->ident == MAC_MODEL_Q900) ||
+		    (macintosh_config->ident == MAC_MODEL_Q950))
+			platform_device_register(&esp_1_pdev);
+		break;
+	}
+
+	/*
+	 * Ethernet device
+	 */
+
+	switch (macintosh_config->ether_type) {
+	case MAC_ETHER_SONIC:
+		platform_device_register(&sonic_pdev);
+		break;
+	case MAC_ETHER_MACE:
+		platform_device_register(&mace_pdev);
+		break;
+	}
 
-	return platform_add_devices(mac_platform_devices,
-				    ARRAY_SIZE(mac_platform_devices));
+	return 0;
 }
 
 arch_initcall(mac_platform_init);
diff --git a/arch/m68k/mac/debug.c b/arch/m68k/mac/debug.c
deleted file mode 100644
index bce074ceb768..000000000000
--- a/arch/m68k/mac/debug.c
+++ /dev/null
@@ -1,365 +0,0 @@
-/*
- * linux/arch/m68k/mac/debug.c
- *
- * Shamelessly stolen (SCC code and general framework) from:
- *
- * linux/arch/m68k/atari/debug.c
- *
- * Atari debugging and serial console stuff
- *
- * Assembled of parts of former atari/config.c 97-12-18 by Roman Hodek
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file COPYING in the main directory of this archive
- * for more details.
- */
-
-#include <linux/types.h>
-#include <linux/sched.h>
-#include <linux/tty.h>
-#include <linux/console.h>
-#include <linux/init.h>
-#include <linux/delay.h>
-
-#define BOOTINFO_COMPAT_1_0
-#include <asm/setup.h>
-#include <asm/bootinfo.h>
-#include <asm/macints.h>
-
-extern unsigned long mac_videobase;
-extern unsigned long mac_rowbytes;
-
-extern void mac_serial_print(const char *);
-
-#define DEBUG_HEADS
-#undef DEBUG_SCREEN
-#define DEBUG_SERIAL
-
-/*
- * These two auxiliary debug functions should go away ASAP. Only usage:
- * before the console output is up (after head.S come some other crucial
- * setup routines :-) it permits writing 'data' to the screen as bit patterns
- * (good luck reading those). Helped to figure that the bootinfo contained
- * garbage data on the amount and size of memory chunks ...
- *
- * The 'pos' argument now simply means 'linefeed after print' ...
- */
-
-#ifdef DEBUG_SCREEN
-static int peng, line;
-#endif
-
-#if 0
-
-void mac_debugging_short(int pos, short num)
-{
-#ifdef DEBUG_SCREEN
-	unsigned char *pengoffset;
-	unsigned char *pptr;
-	int i;
-#endif
-
-#ifdef DEBUG_SERIAL
-	printk("debug: %d !\n", num);
-#endif
-
-#ifdef DEBUG_SCREEN
-	if (!MACH_IS_MAC) {
-		/* printk("debug: %d !\n", num); */
-		return;
-	}
-
-	/* calculate current offset */
-	pengoffset = (unsigned char *)mac_videobase +
-		(150+line*2) * mac_rowbytes + 80 * peng;
-
-	pptr = pengoffset;
-
-	for (i = 0; i < 8 * sizeof(short); i++) { /* # of bits */
-		/*        value        mask for bit i, reverse order */
-		*pptr++ = (num & (1 << (8*sizeof(short)-i-1)) ? 0xFF : 0x00);
-	}
-
-	peng++;
-
-	if (pos) {
-		line++;
-		peng = 0;
-	}
-#endif
-}
-
-void mac_debugging_long(int pos, long addr)
-{
-#ifdef DEBUG_SCREEN
-	unsigned char *pengoffset;
-	unsigned char *pptr;
-	int i;
-#endif
-
-#ifdef DEBUG_SERIAL
-	printk("debug: #%ld !\n", addr);
-#endif
-
-#ifdef DEBUG_SCREEN
-	if (!MACH_IS_MAC) {
-		/* printk("debug: #%ld !\n", addr); */
-		return;
-	}
-
-	pengoffset=(unsigned char *)(mac_videobase+(150+line*2)*mac_rowbytes)
-		    +80*peng;
-
-	pptr = pengoffset;
-
-	for (i = 0; i < 8 * sizeof(long); i++) { /* # of bits */
-		*pptr++ = (addr & (1 << (8*sizeof(long)-i-1)) ? 0xFF : 0x00);
-	}
-
-	peng++;
-
-	if (pos) {
-		line++;
-		peng = 0;
-	}
-#endif
-}
-
-#endif  /*  0  */
-
-#ifdef DEBUG_SERIAL
-/*
- * TODO: serial debug code
- */
-
-struct mac_SCC {
-	u_char cha_b_ctrl;
-	u_char char_dummy1;
-	u_char cha_a_ctrl;
-	u_char char_dummy2;
-	u_char cha_b_data;
-	u_char char_dummy3;
-	u_char cha_a_data;
-};
-
-# define scc (*((volatile struct mac_SCC*)mac_bi_data.sccbase))
-
-static int scc_port = -1;
-
-static struct console mac_console_driver = {
-	.name	= "debug",
-	.flags	= CON_PRINTBUFFER,
-	.index	= -1,
-};
-
-/*
- * Crude hack to get console output to the screen before the framebuffer
- * is initialized (happens a lot later in 2.1!).
- * We just use the console routines declared in head.S, this will interfere
- * with regular framebuffer console output and should be used exclusively
- * to debug kernel problems manifesting before framebuffer init (aka WSOD)
- *
- * To keep this hack from interfering with the regular console driver, either
- * deregister this driver before/on framebuffer console init, or silence this
- * function after the fbcon driver is running (will lose console messages!?).
- * To debug real early bugs, need to write a 'mac_register_console_hack()'
- * that is called from start_kernel() before setup_arch() and just registers
- * this driver if Mac.
- */
-
-static void mac_debug_console_write(struct console *co, const char *str,
-				    unsigned int count)
-{
-	mac_serial_print(str);
-}
-
-
-
-/* Mac: loops_per_jiffy min. 19000 ^= .5 us; MFPDELAY was 0.6 us*/
-
-#define uSEC 1
-
-static inline void mac_sccb_out(char c)
-{
-	int i;
-
-	do {
-		for (i = uSEC; i > 0; --i)
-			barrier();
-	} while (!(scc.cha_b_ctrl & 0x04)); /* wait for tx buf empty */
-	for (i = uSEC; i > 0; --i)
-		barrier();
-	scc.cha_b_data = c;
-}
-
-static inline void mac_scca_out(char c)
-{
-	int i;
-
-	do {
-		for (i = uSEC; i > 0; --i)
-			barrier();
-	} while (!(scc.cha_a_ctrl & 0x04)); /* wait for tx buf empty */
-	for (i = uSEC; i > 0; --i)
-		barrier();
-	scc.cha_a_data = c;
-}
-
-static void mac_sccb_console_write(struct console *co, const char *str,
-				   unsigned int count)
-{
-	while (count--) {
-		if (*str == '\n')
-			mac_sccb_out('\r');
-		mac_sccb_out(*str++);
-	}
-}
-
-static void mac_scca_console_write(struct console *co, const char *str,
-				   unsigned int count)
-{
-	while (count--) {
-		if (*str == '\n')
-			mac_scca_out('\r');
-		mac_scca_out(*str++);
-	}
-}
-
-
-/* The following two functions do a quick'n'dirty initialization of the MFP or
- * SCC serial ports. They're used by the debugging interface, kgdb, and the
- * serial console code. */
-#define SCCB_WRITE(reg,val)				\
-	do {						\
-		int i;					\
-		scc.cha_b_ctrl = (reg);			\
-		for (i = uSEC; i > 0; --i)		\
-			barrier();			\
-		scc.cha_b_ctrl = (val);			\
-		for (i = uSEC; i > 0; --i)		\
-			barrier();			\
-	} while(0)
-
-#define SCCA_WRITE(reg,val)				\
-	do {						\
-		int i;					\
-		scc.cha_a_ctrl = (reg);			\
-		for (i = uSEC; i > 0; --i)		\
-			barrier();			\
-		scc.cha_a_ctrl = (val);			\
-		for (i = uSEC; i > 0; --i)		\
-			barrier();			\
-	} while(0)
-
-/* loops_per_jiffy isn't initialized yet, so we can't use udelay(). This does a
- * delay of ~ 60us. */
-/* Mac: loops_per_jiffy min. 19000 ^= .5 us; MFPDELAY was 0.6 us*/
-#define LONG_DELAY()					\
-	do {						\
-		int i;					\
-		for (i = 60*uSEC; i > 0; --i)		\
-		    barrier();				\
-	} while(0)
-
-static void __init mac_init_scc_port(int cflag, int port)
-{
-	/*
-	 * baud rates: 1200, 1800, 2400, 4800, 9600, 19.2k, 38.4k, 57.6k, 115.2k
-	 */
-
-	static int clksrc_table[9] =
-		/* reg 11: 0x50 = BRG, 0x00 = RTxC, 0x28 = TRxC */
-		{ 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x50, 0x00, 0x00 };
-	static int clkmode_table[9] =
-		/* reg 4: 0x40 = x16, 0x80 = x32, 0xc0 = x64 */
-		{ 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0x40, 0xc0, 0x80 };
-	static int div_table[9] =
-		/* reg12 (BRG low) */
-		{ 94, 62, 46, 22, 10, 4, 1, 0, 0 };
-
-	int baud = cflag & CBAUD;
-	int clksrc, clkmode, div, reg3, reg5;
-
-	if (cflag & CBAUDEX)
-		baud += B38400;
-	if (baud < B1200 || baud > B38400+2)
-		baud = B9600; /* use default 9600bps for non-implemented rates */
-	baud -= B1200; /* tables starts at 1200bps */
-
-	clksrc  = clksrc_table[baud];
-	clkmode = clkmode_table[baud];
-	div     = div_table[baud];
-
-	reg3 = (((cflag & CSIZE) == CS8) ? 0xc0 : 0x40);
-	reg5 = (((cflag & CSIZE) == CS8) ? 0x60 : 0x20) | 0x82 /* assert DTR/RTS */;
-
-	if (port == 1) {
-		(void)scc.cha_b_ctrl;	/* reset reg pointer */
-		SCCB_WRITE(9, 0xc0);	/* reset */
-		LONG_DELAY();		/* extra delay after WR9 access */
-		SCCB_WRITE(4, (cflag & PARENB) ? ((cflag & PARODD) ? 0x01 : 0x03) : 0 |
-			   0x04 /* 1 stopbit */ |
-			   clkmode);
-		SCCB_WRITE(3, reg3);
-		SCCB_WRITE(5, reg5);
-		SCCB_WRITE(9, 0);	/* no interrupts */
-		LONG_DELAY();		/* extra delay after WR9 access */
-		SCCB_WRITE(10, 0);	/* NRZ mode */
-		SCCB_WRITE(11, clksrc);	/* main clock source */
-		SCCB_WRITE(12, div);	/* BRG value */
-		SCCB_WRITE(13, 0);	/* BRG high byte */
-		SCCB_WRITE(14, 1);
-		SCCB_WRITE(3, reg3 | 1);
-		SCCB_WRITE(5, reg5 | 8);
-	} else if (port == 0) {
-		(void)scc.cha_a_ctrl;	/* reset reg pointer */
-		SCCA_WRITE(9, 0xc0);	/* reset */
-		LONG_DELAY();		/* extra delay after WR9 access */
-		SCCA_WRITE(4, (cflag & PARENB) ? ((cflag & PARODD) ? 0x01 : 0x03) : 0 |
-			  0x04 /* 1 stopbit */ |
-			  clkmode);
-		SCCA_WRITE(3, reg3);
-		SCCA_WRITE(5, reg5);
-		SCCA_WRITE(9, 0);	/* no interrupts */
-		LONG_DELAY();		/* extra delay after WR9 access */
-		SCCA_WRITE(10, 0);	/* NRZ mode */
-		SCCA_WRITE(11, clksrc);	/* main clock source */
-		SCCA_WRITE(12, div);	/* BRG value */
-		SCCA_WRITE(13, 0);	/* BRG high byte */
-		SCCA_WRITE(14, 1);
-		SCCA_WRITE(3, reg3 | 1);
-		SCCA_WRITE(5, reg5 | 8);
-	}
-}
-#endif /* DEBUG_SERIAL */
-
-static int __init mac_debug_setup(char *arg)
-{
-	if (!MACH_IS_MAC)
-		return 0;
-
-#ifdef DEBUG_SERIAL
-	if (!strcmp(arg, "ser") || !strcmp(arg, "ser1")) {
-		/* Mac modem port */
-		mac_init_scc_port(B9600|CS8, 0);
-		mac_console_driver.write = mac_scca_console_write;
-		scc_port = 0;
-	} else if (!strcmp(arg, "ser2")) {
-		/* Mac printer port */
-		mac_init_scc_port(B9600|CS8, 1);
-		mac_console_driver.write = mac_sccb_console_write;
-		scc_port = 1;
-	}
-#endif
-#ifdef DEBUG_HEADS
-	if (!strcmp(arg, "scn") || !strcmp(arg, "con")) {
-		/* display, using head.S console routines */
-		mac_console_driver.write = mac_debug_console_write;
-	}
-#endif
-	if (mac_console_driver.write)
-		register_console(&mac_console_driver);
-	return 0;
-}
-
-early_param("debug", mac_debug_setup);
diff --git a/arch/m68k/mac/macints.c b/arch/m68k/mac/macints.c
index 23711074e0e2..900d899f3323 100644
--- a/arch/m68k/mac/macints.c
+++ b/arch/m68k/mac/macints.c
@@ -34,9 +34,7 @@
  *
  *	3	- unused (?)
  *
- *	4	- SCC (slot number determined by reading RR3 on the SSC itself)
- *		  - slot 1: SCC channel A
- *		  - slot 2: SCC channel B
+ *	4	- SCC
  *
  *	5	- unused (?)
  *		  [serial errors or special conditions seem to raise level 6
@@ -55,8 +53,6 @@
  *		  - slot 5: Slot $E
  *
  *	4	- SCC IOP
- *		  - slot 1: SCC channel A
- *		  - slot 2: SCC channel B
  *
  *	5	- ISM IOP (ADB?)
  *
@@ -136,13 +132,8 @@
 #include <asm/irq_regs.h>
 #include <asm/mac_oss.h>
 
-#define DEBUG_SPURIOUS
 #define SHUTUP_SONIC
 
-/* SCC interrupt mask */
-
-static int scc_mask;
-
 /*
  * VIA/RBV hooks
  */
@@ -191,13 +182,6 @@ extern void baboon_irq_disable(int);
 extern void baboon_irq_clear(int);
 
 /*
- * SCC interrupt routines
- */
-
-static void scc_irq_enable(unsigned int);
-static void scc_irq_disable(unsigned int);
-
-/*
  * console_loglevel determines NMI handler function
  */
 
@@ -221,8 +205,6 @@ void __init mac_init_IRQ(void)
 #ifdef DEBUG_MACINTS
 	printk("mac_init_IRQ(): Setting things up...\n");
 #endif
-	scc_mask = 0;
-
 	m68k_setup_irq_controller(&mac_irq_controller, IRQ_USER,
 				  NUM_MAC_SOURCES - IRQ_USER);
 	/* Make sure the SONIC interrupt is cleared or things get ugly */
@@ -283,15 +265,16 @@ void mac_enable_irq(unsigned int irq)
 			via_irq_enable(irq);
 		break;
 	case 3:
-	case 4:
 	case 5:
 	case 6:
 		if (psc_present)
 			psc_irq_enable(irq);
 		else if (oss_present)
 			oss_irq_enable(irq);
-		else if (irq_src == 4)
-			scc_irq_enable(irq);
+		break;
+	case 4:
+		if (psc_present)
+			psc_irq_enable(irq);
 		break;
 	case 8:
 		if (baboon_present)
@@ -316,15 +299,16 @@ void mac_disable_irq(unsigned int irq)
 			via_irq_disable(irq);
 		break;
 	case 3:
-	case 4:
 	case 5:
 	case 6:
 		if (psc_present)
 			psc_irq_disable(irq);
 		else if (oss_present)
 			oss_irq_disable(irq);
-		else if (irq_src == 4)
-			scc_irq_disable(irq);
+		break;
+	case 4:
+		if (psc_present)
+			psc_irq_disable(irq);
 		break;
 	case 8:
 		if (baboon_present)
@@ -347,7 +331,6 @@ void mac_clear_irq(unsigned int irq)
 			via_irq_clear(irq);
 		break;
 	case 3:
-	case 4:
 	case 5:
 	case 6:
 		if (psc_present)
@@ -355,6 +338,10 @@ void mac_clear_irq(unsigned int irq)
 		else if (oss_present)
 			oss_irq_clear(irq);
 		break;
+	case 4:
+		if (psc_present)
+			psc_irq_clear(irq);
+		break;
 	case 8:
 		if (baboon_present)
 			baboon_irq_clear(irq);
@@ -374,13 +361,17 @@ int mac_irq_pending(unsigned int irq)
 		else
 			return via_irq_pending(irq);
 	case 3:
-	case 4:
 	case 5:
 	case 6:
 		if (psc_present)
 			return psc_irq_pending(irq);
 		else if (oss_present)
 			return oss_irq_pending(irq);
+		break;
+	case 4:
+		if (psc_present)
+			psc_irq_pending(irq);
+		break;
 	}
 	return 0;
 }
@@ -448,59 +439,3 @@ irqreturn_t mac_nmi_handler(int irq, void *dev_id)
 	in_nmi--;
 	return IRQ_HANDLED;
 }
-
-/*
- * Simple routines for masking and unmasking
- * SCC interrupts in cases where this can't be
- * done in hardware (only the PSC can do that.)
- */
-
-static void scc_irq_enable(unsigned int irq)
-{
-	int irq_idx = IRQ_IDX(irq);
-
-	scc_mask |= (1 << irq_idx);
-}
-
-static void scc_irq_disable(unsigned int irq)
-{
-	int irq_idx = IRQ_IDX(irq);
-
-	scc_mask &= ~(1 << irq_idx);
-}
-
-/*
- * SCC master interrupt handler. We have to do a bit of magic here
- * to figure out what channel gave us the interrupt; putting this
- * here is cleaner than hacking it into drivers/char/macserial.c.
- */
-
-void mac_scc_dispatch(int irq, void *dev_id)
-{
-	volatile unsigned char *scc = (unsigned char *) mac_bi_data.sccbase + 2;
-	unsigned char reg;
-	unsigned long flags;
-
-	/* Read RR3 from the chip. Always do this on channel A */
-	/* This must be an atomic operation so disable irqs.   */
-
-	local_irq_save(flags);
-	*scc = 3;
-	reg = *scc;
-	local_irq_restore(flags);
-
-	/* Now dispatch. Bits 0-2 are for channel B and */
-	/* bits 3-5 are for channel A. We can safely    */
-	/* ignore the remaining bits here.              */
-	/*                                              */
-	/* Note that we're ignoring scc_mask for now.   */
-	/* If we actually mask the ints then we tend to */
-	/* get hammered by very persistent SCC irqs,    */
-	/* and since they're autovector interrupts they */
-	/* pretty much kill the system.                 */
-
-	if (reg & 0x38)
-		m68k_handle_int(IRQ_SCCA);
-	if (reg & 0x07)
-		m68k_handle_int(IRQ_SCCB);
-}
diff --git a/arch/m68k/mac/oss.c b/arch/m68k/mac/oss.c
index f3d23d6ebcf8..a9c0f5ab4cc0 100644
--- a/arch/m68k/mac/oss.c
+++ b/arch/m68k/mac/oss.c
@@ -33,7 +33,6 @@ static irqreturn_t oss_irq(int, void *);
 static irqreturn_t oss_nubus_irq(int, void *);
 
 extern irqreturn_t via1_irq(int, void *);
-extern irqreturn_t mac_scc_dispatch(int, void *);
 
 /*
  * Initialize the OSS
@@ -69,9 +68,6 @@ void __init oss_register_interrupts(void)
 	if (request_irq(OSS_IRQLEV_SCSI, oss_irq, IRQ_FLG_LOCK,
 			"scsi", (void *) oss))
 		pr_err("Couldn't register %s interrupt\n", "scsi");
-	if (request_irq(OSS_IRQLEV_IOPSCC, mac_scc_dispatch, IRQ_FLG_LOCK,
-			"scc", mac_scc_dispatch))
-		pr_err("Couldn't register %s interrupt\n", "scc");
 	if (request_irq(OSS_IRQLEV_NUBUS, oss_nubus_irq, IRQ_FLG_LOCK,
 			"nubus", (void *) oss))
 		pr_err("Couldn't register %s interrupt\n", "nubus");
@@ -172,9 +168,7 @@ void oss_irq_enable(int irq) {
 	printk("oss_irq_enable(%d)\n", irq);
 #endif
 	switch(irq) {
-		case IRQ_SCC:
-		case IRQ_SCCA:
-		case IRQ_SCCB:
+		case IRQ_MAC_SCC:
 			oss->irq_level[OSS_IOPSCC] = OSS_IRQLEV_IOPSCC;
 			break;
 		case IRQ_MAC_ADB:
@@ -212,9 +206,7 @@ void oss_irq_disable(int irq) {
 	printk("oss_irq_disable(%d)\n", irq);
 #endif
 	switch(irq) {
-		case IRQ_SCC:
-		case IRQ_SCCA:
-		case IRQ_SCCB:
+		case IRQ_MAC_SCC:
 			oss->irq_level[OSS_IOPSCC] = OSS_IRQLEV_DISABLED;
 			break;
 		case IRQ_MAC_ADB:
@@ -250,9 +242,7 @@ void oss_irq_disable(int irq) {
 void oss_irq_clear(int irq) {
 	/* FIXME: how to do this on OSS? */
 	switch(irq) {
-		case IRQ_SCC:
-		case IRQ_SCCA:
-		case IRQ_SCCB:
+		case IRQ_MAC_SCC:
 			oss->irq_pending &= ~OSS_IP_IOPSCC;
 			break;
 		case IRQ_MAC_ADB:
@@ -280,9 +270,7 @@ void oss_irq_clear(int irq) {
 int oss_irq_pending(int irq)
 {
 	switch(irq) {
-		case IRQ_SCC:
-		case IRQ_SCCA:
-		case IRQ_SCCB:
+		case IRQ_MAC_SCC:
 			return oss->irq_pending & OSS_IP_IOPSCC;
 			break;
 		case IRQ_MAC_ADB:
diff --git a/arch/m68k/mac/via.c b/arch/m68k/mac/via.c
index 11bce3cb6482..e71166daec6a 100644
--- a/arch/m68k/mac/via.c
+++ b/arch/m68k/mac/via.c
@@ -84,8 +84,6 @@ void via_irq_enable(int irq);
 void via_irq_disable(int irq);
 void via_irq_clear(int irq);
 
-extern irqreturn_t mac_scc_dispatch(int, void *);
-
 /*
  * Initialize the VIAs
  *
@@ -311,11 +309,6 @@ void __init via_register_interrupts(void)
 	if (request_irq(IRQ_AUTO_2, via2_irq, IRQ_FLG_LOCK|IRQ_FLG_FAST,
 			"via2", (void *) via2))
 		pr_err("Couldn't register %s interrupt\n", "via2");
-	if (!psc_present) {
-		if (request_irq(IRQ_AUTO_4, mac_scc_dispatch, IRQ_FLG_LOCK,
-				"scc", mac_scc_dispatch))
-			pr_err("Couldn't register %s interrupt\n", "scc");
-	}
 	if (request_irq(IRQ_MAC_NUBUS, via_nubus_irq,
 			IRQ_FLG_LOCK|IRQ_FLG_FAST, "nubus", (void *) via2))
 		pr_err("Couldn't register %s interrupt\n", "nubus");
diff --git a/arch/m68k/mm/kmap.c b/arch/m68k/mm/kmap.c
index df620ac2a296..69345849454b 100644
--- a/arch/m68k/mm/kmap.c
+++ b/arch/m68k/mm/kmap.c
@@ -99,8 +99,7 @@ static inline void free_io_area(void *addr)
 #endif
 
 /*
- * Map some physical address range into the kernel address space. The
- * code is copied and adapted from map_chunk().
+ * Map some physical address range into the kernel address space.
  */
 /* Rewritten by Andreas Schwab to remove all races. */
 
@@ -116,7 +115,7 @@ void __iomem *__ioremap(unsigned long physaddr, unsigned long size, int cachefla
 	/*
 	 * Don't allow mappings that wrap..
 	 */
-	if (!size || size > physaddr + size)
+	if (!size || physaddr > (unsigned long)(-size))
 		return NULL;
 
 #ifdef CONFIG_AMIGA
diff --git a/arch/m68knommu/kernel/process.c b/arch/m68knommu/kernel/process.c
index 5c9ecd427090..959cb249c759 100644
--- a/arch/m68knommu/kernel/process.c
+++ b/arch/m68knommu/kernel/process.c
@@ -221,6 +221,10 @@ int copy_thread(unsigned long clone_flags,
 
 	p->thread.usp = usp;
 	p->thread.ksp = (unsigned long)childstack;
+
+	if (clone_flags & CLONE_SETTLS)
+		task_thread_info(p)->tp_value = regs->d5;
+
 	/*
 	 * Must save the current SFC/DFC value, NOT the value when
 	 * the parent was last descheduled - RGH  10-08-96
diff --git a/arch/m68knommu/kernel/ptrace.c b/arch/m68knommu/kernel/ptrace.c
index 4d3828959fb0..85ed2f988f98 100644
--- a/arch/m68knommu/kernel/ptrace.c
+++ b/arch/m68knommu/kernel/ptrace.c
@@ -319,6 +319,11 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
 		}
 #endif
 
+	case PTRACE_GET_THREAD_AREA:
+		ret = put_user(task_thread_info(child)->tp_value,
+			       (unsigned long __user *)data);
+		break;
+
 		default:
 			ret = -EIO;
 			break;
diff --git a/arch/m68knommu/kernel/sys_m68k.c b/arch/m68knommu/kernel/sys_m68k.c
index b67cbc735a9b..923dd4aab875 100644
--- a/arch/m68knommu/kernel/sys_m68k.c
+++ b/arch/m68knommu/kernel/sys_m68k.c
@@ -190,3 +190,39 @@ int kernel_execve(const char *filename, char *const argv[], char *const envp[])
 			: "d" (__a), "d" (__b), "d" (__c));
 	return __res;
 }
+
+asmlinkage unsigned long sys_get_thread_area(void)
+{
+	return current_thread_info()->tp_value;
+}
+
+asmlinkage int sys_set_thread_area(unsigned long tp)
+{
+	current_thread_info()->tp_value = tp;
+	return 0;
+}
+
+/* This syscall gets its arguments in A0 (mem), D2 (oldval) and
+   D1 (newval).  */
+asmlinkage int
+sys_atomic_cmpxchg_32(unsigned long newval, int oldval, int d3, int d4, int d5,
+		      unsigned long __user * mem)
+{
+	struct mm_struct *mm = current->mm;
+	unsigned long mem_value;
+
+	down_read(&mm->mmap_sem);
+
+	mem_value = *mem;
+	if (mem_value == oldval)
+		*mem = newval;
+
+	up_read(&mm->mmap_sem);
+	return mem_value;
+}
+
+asmlinkage int sys_atomic_barrier(void)
+{
+	/* no code needed for uniprocs */
+	return 0;
+}
diff --git a/arch/m68knommu/kernel/syscalltable.S b/arch/m68knommu/kernel/syscalltable.S
index 486837efa3d7..56dd01ded148 100644
--- a/arch/m68knommu/kernel/syscalltable.S
+++ b/arch/m68knommu/kernel/syscalltable.S
@@ -351,6 +351,10 @@ ENTRY(sys_call_table)
 	.long sys_pwritev		/* 330 */
 	.long sys_rt_tgsigqueueinfo
 	.long sys_perf_event_open
+	.long sys_get_thread_area
+	.long sys_set_thread_area
+	.long sys_atomic_cmpxchg_32	/* 335 */
+	.long sys_atomic_barrier
 
 	.rept NR_syscalls-(.-sys_call_table)/4
 		.long sys_ni_syscall
diff --git a/arch/m68knommu/mm/memory.c b/arch/m68knommu/mm/memory.c
index f93b88b51f9f..d5b9e1357808 100644
--- a/arch/m68knommu/mm/memory.c
+++ b/arch/m68knommu/mm/memory.c
@@ -24,7 +24,6 @@
 
 /*
  * Map some physical address range into the kernel address space.
- * The code is copied and adapted from map_chunk().
  */
 
 unsigned long kernel_map(unsigned long paddr, unsigned long size,