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
  ...

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,

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

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");

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

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

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 */

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)
 

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__

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
 };
 

arch/m68k/include/asm/siginfo.h

 #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

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)
 {

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__ */

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;
 };
 

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 {

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

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)

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
 

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

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;

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;

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;
+}

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

arch/m68k/mac/debug.c

-/*
- * 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);

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
  */
@@ -190,13 +181,6 @@ extern void baboon_irq_enable(int);
 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);
-}

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:

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");

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

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

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;

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;
+}

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

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,

drivers/block/ataflop.c

@@ -1470,8 +1470,6 @@ static void redo_fd_request(void)
 
 void do_fd_request(struct request_queue * q)
 {
- 	unsigned long flags;
-
 	DPRINT(("do_fd_request for pid %d\n",current->pid));
 	while( fdc_busy ) sleep_on( &fdc_wait );
 	fdc_busy = 1;

drivers/block/swim.c

@@ -864,7 +864,7 @@ static int __devinit swim_probe(struct platform_device *dev)
 	struct swim_priv *swd;
 	int ret;
 
-	res = platform_get_resource_byname(dev, IORESOURCE_MEM, "swim-regs");
+	res = platform_get_resource(dev, IORESOURCE_MEM, 0);
 	if (!res) {
 		ret = -ENODEV;
 		goto out;
@@ -942,7 +942,7 @@ static int __devexit swim_remove(struct platform_device *dev)
 
 	iounmap(swd->base);
 
-	res = platform_get_resource_byname(dev, IORESOURCE_MEM, "swim-regs");
+	res = platform_get_resource(dev, IORESOURCE_MEM, 0);
 	if (res)
 		release_mem_region(res->start, resource_size(res));
 

drivers/char/vme_scc.c

@@ -136,7 +136,7 @@ static const struct tty_port_operations scc_port_ops = {
  * vme_scc_init() and support functions
  *---------------------------------------------------------------------------*/
 
-static int scc_init_drivers(void)
+static int __init scc_init_drivers(void)
 {
 	int error;
 
@@ -172,7 +172,7 @@ static int scc_init_drivers(void)
 /* ports[] array is indexed by line no (i.e. [0] for ttyS0, [1] for ttyS1).
  */
 
-static void scc_init_portstructs(void)
+static void __init scc_init_portstructs(void)
 {
 	struct scc_port *port;
 	int i;
@@ -195,7 +195,7 @@ static void scc_init_portstructs(void)
 
 
 #ifdef CONFIG_MVME147_SCC
-static int mvme147_scc_init(void)
+static int __init mvme147_scc_init(void)
 {
 	struct scc_port *port;
 	int error;
@@ -298,7 +298,7 @@ static int mvme147_scc_init(void)
 
 
 #ifdef CONFIG_MVME162_SCC
-static int mvme162_scc_init(void)
+static int __init mvme162_scc_init(void)
 {
 	struct scc_port *port;
 	int error;
@@ -404,7 +404,7 @@ static int mvme162_scc_init(void)
 
 
 #ifdef CONFIG_BVME6000_SCC
-static int bvme6000_scc_init(void)
+static int __init bvme6000_scc_init(void)
 {
 	struct scc_port *port;
 	int error;
@@ -503,7 +503,7 @@ static int bvme6000_scc_init(void)
 #endif
 
 
-static int vme_scc_init(void)
+static int __init vme_scc_init(void)
 {
 	int res = -ENODEV;
 

drivers/macintosh/adb.c

@@ -317,9 +317,11 @@ static int __init adb_init(void)
 			break;
 		}
 	}
-	if ((adb_controller == NULL) || adb_controller->init()) {
-		printk(KERN_WARNING "Warning: no ADB interface detected\n");
+	if (adb_controller != NULL && adb_controller->init &&
+	    adb_controller->init())
 		adb_controller = NULL;
+	if (adb_controller == NULL) {
+		printk(KERN_WARNING "Warning: no ADB interface detected\n");
 	} else {
 #ifdef CONFIG_PPC
 		if (of_machine_is_compatible("AAPL,PowerBook1998") ||

drivers/macintosh/via-cuda.c

@@ -89,7 +89,6 @@ static int cuda_fully_inited;
 
 #ifdef CONFIG_ADB
 static int cuda_probe(void);
-static int cuda_init(void);
 static int cuda_send_request(struct adb_request *req, int sync);
 static int cuda_adb_autopoll(int devs);
 static int cuda_reset_adb_bus(void);
@@ -107,17 +106,42 @@ int cuda_request(struct adb_request *req,
 
 #ifdef CONFIG_ADB
 struct adb_driver via_cuda_driver = {
-	"CUDA",
-	cuda_probe,
-	cuda_init,
-	cuda_send_request,
-	cuda_adb_autopoll,
-	cuda_poll,
-	cuda_reset_adb_bus
+	.name         = "CUDA",
+	.probe        = cuda_probe,
+	.send_request = cuda_send_request,
+	.autopoll     = cuda_adb_autopoll,
+	.poll         = cuda_poll,
+	.reset_bus    = cuda_reset_adb_bus,
 };
 #endif /* CONFIG_ADB */
 
-#ifdef CONFIG_PPC
+#ifdef CONFIG_MAC
+int __init find_via_cuda(void)
+{
+    struct adb_request req;
+    int err;
+
+    if (macintosh_config->adb_type != MAC_ADB_CUDA)
+	return 0;
+
+    via = via1;
+    cuda_state = idle;
+
+    err = cuda_init_via();
+    if (err) {
+	printk(KERN_ERR "cuda_init_via() failed\n");
+	via = NULL;
+	return 0;
+    }
+
+    /* enable autopoll */
+    cuda_request(&req, NULL, 3, CUDA_PACKET, CUDA_AUTOPOLL, 1);
+    while (!req.complete)
+	cuda_poll();
+
+    return 1;
+}
+#else
 int __init find_via_cuda(void)
 {
     struct adb_request req;
@@ -175,7 +199,7 @@ int __init find_via_cuda(void)
     vias = NULL;
     return 0;
 }
-#endif /* CONFIG_PPC */
+#endif /* !defined CONFIG_MAC */
 
 static int __init via_cuda_start(void)
 {
@@ -184,14 +208,14 @@ static int __init via_cuda_start(void)
 
 #ifdef CONFIG_MAC
     cuda_irq = IRQ_MAC_ADB;
-#else /* CONFIG_MAC */
+#else
     cuda_irq = irq_of_parse_and_map(vias, 0);
     if (cuda_irq == NO_IRQ) {
 	printk(KERN_ERR "via-cuda: can't map interrupts for %s\n",
 	       vias->full_name);
 	return -ENODEV;
     }
-#endif /* CONFIG_MAC */
+#endif
 
     if (request_irq(cuda_irq, cuda_interrupt, 0, "ADB", cuda_interrupt)) {
 	printk(KERN_ERR "via-cuda: can't request irq %d\n", cuda_irq);
@@ -216,28 +240,10 @@ cuda_probe(void)
 #else
     if (macintosh_config->adb_type != MAC_ADB_CUDA)
 	return -ENODEV;
-    via = via1;
 #endif
-    return 0;
-}
-
-static int __init
-cuda_init(void)
-{
-#ifdef CONFIG_PPC
     if (via == NULL)
 	return -ENODEV;
     return 0;
-#else 
-    int err = cuda_init_via();
-    if (err) {
-	printk(KERN_ERR "cuda_init_via() failed\n");
-	return -ENODEV;
-    }
-    out_8(&via[IER], IER_SET|SR_INT); /* enable interrupt from SR */
-
-    return via_cuda_start();
-#endif
 }
 #endif /* CONFIG_ADB */
 
@@ -430,8 +436,10 @@ cuda_poll(void)
     /* cuda_interrupt only takes a normal lock, we disable
      * interrupts here to avoid re-entering and thus deadlocking.
      */
+    if (cuda_irq)
 	disable_irq(cuda_irq);
     cuda_interrupt(0, NULL);
+    if (cuda_irq)
 	enable_irq(cuda_irq);
 }
 
@@ -446,7 +454,7 @@ cuda_interrupt(int irq, void *arg)
     
     spin_lock(&cuda_lock);
 
-    /* On powermacs, this handler is registered for the VIA IRQ. But it uses
+    /* On powermacs, this handler is registered for the VIA IRQ. But they use
      * just the shift register IRQ -- other VIA interrupt sources are disabled.
      * On m68k macs, the VIA IRQ sources are dispatched individually. Unless
      * we are polling, the shift register IRQ flag has already been cleared.

drivers/net/macmace.c

@@ -39,7 +39,6 @@
 #include "mace.h"
 
 static char mac_mace_string[] = "macmace";
-static struct platform_device *mac_mace_device;
 
 #define N_TX_BUFF_ORDER	0
 #define N_TX_RING	(1 << N_TX_BUFF_ORDER)
@@ -752,6 +751,7 @@ static irqreturn_t mace_dma_intr(int irq, void *dev_id)
 
 MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("Macintosh MACE ethernet driver");
+MODULE_ALIAS("platform:macmace");
 
 static int __devexit mac_mace_device_remove (struct platform_device *pdev)
 {
@@ -778,46 +778,21 @@ static struct platform_driver mac_mace_driver = {
 	.remove = __devexit_p(mac_mace_device_remove),
 	.driver	= {
 		.name	= mac_mace_string,
+		.owner	= THIS_MODULE,
 	},
 };
 
 static int __init mac_mace_init_module(void)
 {
-	int err;
-
 	if (!MACH_IS_MAC)
 		return -ENODEV;
 
-	if ((err = platform_driver_register(&mac_mace_driver))) {
-		printk(KERN_ERR "Driver registration failed\n");
-		return err;
-	}
-
-	mac_mace_device = platform_device_alloc(mac_mace_string, 0);
-	if (!mac_mace_device)
-		goto out_unregister;
-
-	if (platform_device_add(mac_mace_device)) {
-		platform_device_put(mac_mace_device);
-		mac_mace_device = NULL;
-	}
-
-	return 0;
-
-out_unregister:
-	platform_driver_unregister(&mac_mace_driver);
-
-	return -ENOMEM;
+	return platform_driver_register(&mac_mace_driver);
 }
 
 static void __exit mac_mace_cleanup_module(void)
 {
 	platform_driver_unregister(&mac_mace_driver);
-
-	if (mac_mace_device) {
-		platform_device_unregister(mac_mace_device);
-		mac_mace_device = NULL;
-	}
 }
 
 module_init(mac_mace_init_module);

drivers/net/macsonic.c

@@ -62,7 +62,6 @@
 #include <asm/mac_via.h>
 
 static char mac_sonic_string[] = "macsonic";
-static struct platform_device *mac_sonic_device;
 
 #include "sonic.h"
 
@@ -607,6 +606,7 @@ static int __devinit mac_sonic_probe(struct platform_device *pdev)
 MODULE_DESCRIPTION("Macintosh SONIC ethernet driver");
 module_param(sonic_debug, int, 0);
 MODULE_PARM_DESC(sonic_debug, "macsonic debug level (1-4)");
+MODULE_ALIAS("platform:macsonic");
 
 #include "sonic.c"
 
@@ -628,43 +628,18 @@ static struct platform_driver mac_sonic_driver = {
 	.remove = __devexit_p(mac_sonic_device_remove),
 	.driver	= {
 		.name	= mac_sonic_string,
+		.owner	= THIS_MODULE,
 	},
 };
 
 static int __init mac_sonic_init_module(void)
 {
-	int err;
-
-	if ((err = platform_driver_register(&mac_sonic_driver))) {
-		printk(KERN_ERR "Driver registration failed\n");
-		return err;
-	}
-
-	mac_sonic_device = platform_device_alloc(mac_sonic_string, 0);
-	if (!mac_sonic_device)
-		goto out_unregister;
-
-	if (platform_device_add(mac_sonic_device)) {
-		platform_device_put(mac_sonic_device);
-		mac_sonic_device = NULL;
-	}
-
-	return 0;
-
-out_unregister:
-	platform_driver_unregister(&mac_sonic_driver);
-
-	return -ENOMEM;
+	return platform_driver_register(&mac_sonic_driver);
 }
 
 static void __exit mac_sonic_cleanup_module(void)
 {
 	platform_driver_unregister(&mac_sonic_driver);
-
-	if (mac_sonic_device) {
-		platform_device_unregister(mac_sonic_device);
-		mac_sonic_device = NULL;
-	}
 }
 
 module_init(mac_sonic_init_module);

drivers/scsi/mac_esp.c

@@ -52,7 +52,6 @@ struct mac_esp_priv {
 	void __iomem *pdma_io;
 	int error;
 };
-static struct platform_device *internal_pdev, *external_pdev;
 static struct esp *esp_chips[2];
 
 #define MAC_ESP_GET_PRIV(esp) ((struct mac_esp_priv *) \
@@ -495,29 +494,12 @@ static int __devinit esp_mac_probe(struct platform_device *dev)
 	struct Scsi_Host *host;
 	struct esp *esp;
 	int err;
-	int chips_present;
 	struct mac_esp_priv *mep;
 
 	if (!MACH_IS_MAC)
 		return -ENODEV;
 
-	switch (macintosh_config->scsi_type) {
-	case MAC_SCSI_QUADRA:
-	case MAC_SCSI_QUADRA3:
-		chips_present = 1;
-		break;
-	case MAC_SCSI_QUADRA2:
-		if ((macintosh_config->ident == MAC_MODEL_Q900) ||
-		    (macintosh_config->ident == MAC_MODEL_Q950))
-			chips_present = 2;
-		else
-			chips_present = 1;
-		break;
-	default:
-		chips_present = 0;
-	}
-
-	if (dev->id + 1 > chips_present)
+	if (dev->id > 1)
 		return -ENODEV;
 
 	host = scsi_host_alloc(tpnt, sizeof(struct esp));
@@ -643,54 +625,25 @@ static struct platform_driver esp_mac_driver = {
 	.remove   = __devexit_p(esp_mac_remove),
 	.driver   = {
 		.name	= DRV_MODULE_NAME,
+		.owner	= THIS_MODULE,
 	},
 };
 
 static int __init mac_esp_init(void)
 {
-	int err;
-
-	err = platform_driver_register(&esp_mac_driver);
-	if (err)
-		return err;
-
-	internal_pdev = platform_device_alloc(DRV_MODULE_NAME, 0);
-	if (internal_pdev && platform_device_add(internal_pdev)) {
-		platform_device_put(internal_pdev);
-		internal_pdev = NULL;
-	}
-	external_pdev = platform_device_alloc(DRV_MODULE_NAME, 1);
-	if (external_pdev && platform_device_add(external_pdev)) {
-		platform_device_put(external_pdev);
-		external_pdev = NULL;
-	}
-
-	if (internal_pdev || external_pdev) {
-		return 0;
-	} else {
-		platform_driver_unregister(&esp_mac_driver);
-		return -ENOMEM;
-	}
+	return platform_driver_register(&esp_mac_driver);
 }
 
 static void __exit mac_esp_exit(void)
 {
 	platform_driver_unregister(&esp_mac_driver);
-
-	if (internal_pdev) {
-		platform_device_unregister(internal_pdev);
-		internal_pdev = NULL;
-	}
-	if (external_pdev) {
-		platform_device_unregister(external_pdev);
-		external_pdev = NULL;
-	}
 }
 
 MODULE_DESCRIPTION("Mac ESP SCSI driver");
 MODULE_AUTHOR("Finn Thain <fthain@telegraphics.com.au>");
 MODULE_LICENSE("GPL v2");
 MODULE_VERSION(DRV_VERSION);
+MODULE_ALIAS("platform:" DRV_MODULE_NAME);
 
 module_init(mac_esp_init);
 module_exit(mac_esp_exit);

drivers/serial/Kconfig

@@ -1086,12 +1086,12 @@ config SERIAL_68360
 	default y
 
 config SERIAL_PMACZILOG
-	tristate "PowerMac z85c30 ESCC support"
-	depends on PPC_OF && PPC_PMAC
+	tristate "Mac or PowerMac z85c30 ESCC support"
+	depends on (M68K && MAC) || (PPC_OF && PPC_PMAC)
 	select SERIAL_CORE
 	help
 	  This driver supports the Zilog z85C30 serial ports found on
-	  PowerMac machines.
+	  (Power)Mac machines.
 	  Say Y or M if you want to be able to these serial ports.
 
 config SERIAL_PMACZILOG_TTYS
@@ -1116,16 +1116,16 @@ config SERIAL_PMACZILOG_TTYS
 	  unable to use the 8250 module for PCMCIA or other 16C550-style
 	  UARTs.
 
-	  Say N unless you need the z85c30 ports on your powermac
+	  Say N unless you need the z85c30 ports on your (Power)Mac
 	  to appear as /dev/ttySn.
 
 config SERIAL_PMACZILOG_CONSOLE
-	bool "Console on PowerMac z85c30 serial port"
+	bool "Console on Mac or PowerMac z85c30 serial port"
 	depends on SERIAL_PMACZILOG=y
 	select SERIAL_CORE_CONSOLE
 	help
 	  If you would like to be able to use the z85c30 serial port
-	  on your PowerMac as the console, you can do so by answering
+	  on your (Power)Mac as the console, you can do so by answering
 	  Y to this option.
 
 config SERIAL_LH7A40X

drivers/serial/pmac_zilog.c

@@ -63,11 +63,17 @@
 #include <asm/sections.h>
 #include <asm/io.h>
 #include <asm/irq.h>
+
+#ifdef CONFIG_PPC_PMAC
 #include <asm/prom.h>
 #include <asm/machdep.h>
 #include <asm/pmac_feature.h>
 #include <asm/dbdma.h>
 #include <asm/macio.h>
+#else
+#include <linux/platform_device.h>
+#define of_machine_is_compatible(x) (0)
+#endif
 
 #if defined (CONFIG_SERIAL_PMACZILOG_CONSOLE) && defined(CONFIG_MAGIC_SYSRQ)
 #define SUPPORT_SYSRQ
@@ -83,11 +89,9 @@
 
 static char version[] __initdata = "pmac_zilog: 0.6 (Benjamin Herrenschmidt <benh@kernel.crashing.org>)";
 MODULE_AUTHOR("Benjamin Herrenschmidt <benh@kernel.crashing.org>");
-MODULE_DESCRIPTION("Driver for the PowerMac serial ports.");
+MODULE_DESCRIPTION("Driver for the Mac and PowerMac serial ports.");
 MODULE_LICENSE("GPL");
 
-#define PWRDBG(fmt, arg...)	printk(KERN_DEBUG fmt , ## arg)
-
 #ifdef CONFIG_SERIAL_PMACZILOG_TTYS
 #define PMACZILOG_MAJOR		TTY_MAJOR
 #define PMACZILOG_MINOR		64
@@ -341,7 +345,7 @@ static struct tty_struct *pmz_receive_chars(struct uart_pmac_port *uap)
 	uap->curregs[R1] &= ~(EXT_INT_ENAB | TxINT_ENAB | RxINT_MASK);
 	write_zsreg(uap, R1, uap->curregs[R1]);
 	zssync(uap);
-	dev_err(&uap->dev->ofdev.dev, "pmz: rx irq flood !\n");
+	pmz_error("pmz: rx irq flood !\n");
 	return tty;
 }
 
@@ -757,6 +761,8 @@ static void pmz_break_ctl(struct uart_port *port, int break_state)
 	spin_unlock_irqrestore(&port->lock, flags);
 }
 
+#ifdef CONFIG_PPC_PMAC
+
 /*
  * Turn power on or off to the SCC and associated stuff
  * (port drivers, modem, IR port, etc.)
@@ -792,6 +798,15 @@ static int pmz_set_scc_power(struct uart_pmac_port *uap, int state)
 	return delay;
 }
 
+#else
+
+static int pmz_set_scc_power(struct uart_pmac_port *uap, int state)
+{
+	return 0;
+}
+
+#endif /* !CONFIG_PPC_PMAC */
+
 /*
  * FixZeroBug....Works around a bug in the SCC receving channel.
  * Inspired from Darwin code, 15 Sept. 2000  -DanM
@@ -908,7 +923,6 @@ static int __pmz_startup(struct uart_pmac_port *uap)
 	/* Remember status for DCD/CTS changes */
 	uap->prev_status = read_zsreg(uap, R0);
 
-
 	return pwr_delay;
 }
 
@@ -955,9 +969,9 @@ static int pmz_startup(struct uart_port *port)
 	}	
 
 	pmz_get_port_A(uap)->flags |= PMACZILOG_FLAG_IS_IRQ_ON;
-	if (request_irq(uap->port.irq, pmz_interrupt, IRQF_SHARED, "PowerMac Zilog", uap)) {
-		dev_err(&uap->dev->ofdev.dev,
-			"Unable to register zs interrupt handler.\n");
+	if (request_irq(uap->port.irq, pmz_interrupt, IRQF_SHARED,
+			"SCC", uap)) {
+		pmz_error("Unable to register zs interrupt handler.\n");
 		pmz_set_scc_power(uap, 0);
 		mutex_unlock(&pmz_irq_mutex);
 		return -ENXIO;
@@ -1051,7 +1065,6 @@ static void pmz_convert_to_zs(struct uart_pmac_port *uap, unsigned int cflag,
 {
 	int brg;
 
-
 	/* Switch to external clocking for IrDA high clock rates. That
 	 * code could be re-used for Midi interfaces with different
 	 * multipliers
@@ -1198,7 +1211,7 @@ static void pmz_irda_setup(struct uart_pmac_port *uap, unsigned long *baud)
 	while ((read_zsreg(uap, R0) & Tx_BUF_EMP) == 0
 	       || (read_zsreg(uap, R1) & ALL_SNT) == 0) {
 		if (--t <= 0) {
-			dev_err(&uap->dev->ofdev.dev, "transmitter didn't drain\n");
+			pmz_error("transmitter didn't drain\n");
 			return;
 		}
 		udelay(10);
@@ -1214,7 +1227,7 @@ static void pmz_irda_setup(struct uart_pmac_port *uap, unsigned long *baud)
 		read_zsdata(uap);
 		mdelay(10);
 		if (--t <= 0) {
-			dev_err(&uap->dev->ofdev.dev, "receiver didn't drain\n");
+			pmz_error("receiver didn't drain\n");
 			return;
 		}
 	}
@@ -1235,8 +1248,7 @@ static void pmz_irda_setup(struct uart_pmac_port *uap, unsigned long *baud)
 	t = 5000;
 	while ((read_zsreg(uap, R0) & Rx_CH_AV) == 0) {
 		if (--t <= 0) {
-			dev_err(&uap->dev->ofdev.dev,
-				"irda_setup timed out on get_version byte\n");
+			pmz_error("irda_setup timed out on get_version byte\n");
 			goto out;
 		}
 		udelay(10);
@@ -1244,8 +1256,7 @@ static void pmz_irda_setup(struct uart_pmac_port *uap, unsigned long *baud)
 	version = read_zsdata(uap);
 
 	if (version < 4) {
-		dev_info(&uap->dev->ofdev.dev, "IrDA: dongle version %d not supported\n",
-			 version);
+		pmz_info("IrDA: dongle version %d not supported\n", version);
 		goto out;
 	}
 
@@ -1254,18 +1265,16 @@ static void pmz_irda_setup(struct uart_pmac_port *uap, unsigned long *baud)
 	t = 5000;
 	while ((read_zsreg(uap, R0) & Rx_CH_AV) == 0) {
 		if (--t <= 0) {
-			dev_err(&uap->dev->ofdev.dev,
-				"irda_setup timed out on speed mode byte\n");
+			pmz_error("irda_setup timed out on speed mode byte\n");
 			goto out;
 		}
 		udelay(10);
 	}
 	t = read_zsdata(uap);
 	if (t != cmdbyte)
-		dev_err(&uap->dev->ofdev.dev,
-			"irda_setup speed mode byte = %x (%x)\n", t, cmdbyte);
+		pmz_error("irda_setup speed mode byte = %x (%x)\n", t, cmdbyte);
 
-	dev_info(&uap->dev->ofdev.dev, "IrDA setup for %ld bps, dongle version: %d\n",
+	pmz_info("IrDA setup for %ld bps, dongle version: %d\n",
 		 *baud, version);
 
 	(void)read_zsdata(uap);
@@ -1415,7 +1424,7 @@ static void pmz_poll_put_char(struct uart_port *port, unsigned char c)
 	write_zsdata(uap, c);
 }
 
-#endif
+#endif /* CONFIG_CONSOLE_POLL */
 
 static struct uart_ops pmz_pops = {
 	.tx_empty	=	pmz_tx_empty,
@@ -1440,6 +1449,8 @@ static struct uart_ops pmz_pops = {
 #endif
 };
 
+#ifdef CONFIG_PPC_PMAC
+
 /*
  * Setup one port structure after probing, HW is down at this point,
  * Unlike sunzilog, we don't need to pre-init the spinlock as we don't
@@ -1590,7 +1601,7 @@ static void pmz_dispose_port(struct uart_pmac_port *uap)
 }
 
 /*
- * Called upon match with an escc node in the devive-tree.
+ * Called upon match with an escc node in the device-tree.
  */
 static int pmz_attach(struct macio_dev *mdev, const struct of_device_id *match)
 {
@@ -1836,6 +1847,88 @@ static int __init pmz_probe(void)
 	return 0;
 }
 
+#else
+
+extern struct platform_device scc_a_pdev, scc_b_pdev;
+
+static int __init pmz_init_port(struct uart_pmac_port *uap)
+{
+	struct resource *r_ports;
+	int irq;
+
+	r_ports = platform_get_resource(uap->node, IORESOURCE_MEM, 0);
+	irq = platform_get_irq(uap->node, 0);
+	if (!r_ports || !irq)
+		return -ENODEV;
+
+	uap->port.mapbase  = r_ports->start;
+	uap->port.membase  = (unsigned char __iomem *) r_ports->start;
+	uap->port.iotype   = UPIO_MEM;
+	uap->port.irq      = irq;
+	uap->port.uartclk  = ZS_CLOCK;
+	uap->port.fifosize = 1;
+	uap->port.ops      = &pmz_pops;
+	uap->port.type     = PORT_PMAC_ZILOG;
+	uap->port.flags    = 0;
+
+	uap->control_reg   = uap->port.membase;
+	uap->data_reg      = uap->control_reg + 4;
+	uap->port_type     = 0;
+
+	pmz_convert_to_zs(uap, CS8, 0, 9600);
+
+	return 0;
+}
+
+static int __init pmz_probe(void)
+{
+	int err;
+
+	pmz_ports_count = 0;
+
+	pmz_ports[0].mate      = &pmz_ports[1];
+	pmz_ports[0].port.line = 0;
+	pmz_ports[0].flags     = PMACZILOG_FLAG_IS_CHANNEL_A;
+	pmz_ports[0].node      = &scc_a_pdev;
+	err = pmz_init_port(&pmz_ports[0]);
+	if (err)
+		return err;
+	pmz_ports_count++;
+
+	pmz_ports[1].mate      = &pmz_ports[0];
+	pmz_ports[1].port.line = 1;
+	pmz_ports[1].flags     = 0;
+	pmz_ports[1].node      = &scc_b_pdev;
+	err = pmz_init_port(&pmz_ports[1]);
+	if (err)
+		return err;
+	pmz_ports_count++;
+
+	return 0;
+}
+
+static void pmz_dispose_port(struct uart_pmac_port *uap)
+{
+	memset(uap, 0, sizeof(struct uart_pmac_port));
+}
+
+static int __init pmz_attach(struct platform_device *pdev)
+{
+	int i;
+
+	for (i = 0; i < pmz_ports_count; i++)
+		if (pmz_ports[i].node == pdev)
+			return 0;
+	return -ENODEV;
+}
+
+static int __exit pmz_detach(struct platform_device *pdev)
+{
+	return 0;
+}
+
+#endif /* !CONFIG_PPC_PMAC */
+
 #ifdef CONFIG_SERIAL_PMACZILOG_CONSOLE
 
 static void pmz_console_write(struct console *con, const char *s, unsigned int count);
@@ -1896,6 +1989,8 @@ static int __init pmz_register(void)
 	return rc;
 }
 
+#ifdef CONFIG_PPC_PMAC
+
 static struct of_device_id pmz_match[] = 
 {
 	{
@@ -1908,8 +2003,7 @@ static struct of_device_id pmz_match[] =
 };
 MODULE_DEVICE_TABLE (of, pmz_match);
 
-static struct macio_driver pmz_driver = 
-{
+static struct macio_driver pmz_driver = {
 	.name 		= "pmac_zilog",
 	.match_table	= pmz_match,
 	.probe		= pmz_attach,
@@ -1918,6 +2012,18 @@ static struct macio_driver pmz_driver =
 	.resume		= pmz_resume,
 };
 
+#else
+
+static struct platform_driver pmz_driver = {
+	.remove		= __exit_p(pmz_detach),
+	.driver		= {
+		.name		= "scc",
+		.owner		= THIS_MODULE,
+	},
+};
+
+#endif /* !CONFIG_PPC_PMAC */
+
 static int __init init_pmz(void)
 {
 	int rc, i;
@@ -1956,15 +2062,23 @@ static int __init init_pmz(void)
 	/*
 	 * Then we register the macio driver itself
 	 */
+#ifdef CONFIG_PPC_PMAC
 	return macio_register_driver(&pmz_driver);
+#else
+	return platform_driver_probe(&pmz_driver, pmz_attach);
+#endif
 }
 
 static void __exit exit_pmz(void)
 {
 	int i;
 
+#ifdef CONFIG_PPC_PMAC
 	/* Get rid of macio-driver (detach from macio) */
 	macio_unregister_driver(&pmz_driver);
+#else
+	platform_driver_unregister(&pmz_driver);
+#endif
 
 	for (i = 0; i < pmz_ports_count; i++) {
 		struct uart_pmac_port *uport = &pmz_ports[i];

drivers/serial/pmac_zilog.h

 #ifndef __PMAC_ZILOG_H__
 #define __PMAC_ZILOG_H__
 
-#define pmz_debug(fmt,arg...)	dev_dbg(&uap->dev->ofdev.dev, fmt, ## arg)
+#ifdef CONFIG_PPC_PMAC
+#define pmz_debug(fmt, arg...)	dev_dbg(&uap->dev->ofdev.dev, fmt, ## arg)
+#define pmz_error(fmt, arg...)	dev_err(&uap->dev->ofdev.dev, fmt, ## arg)
+#define pmz_info(fmt, arg...)	dev_info(&uap->dev->ofdev.dev, fmt, ## arg)
+#else
+#define pmz_debug(fmt, arg...)	dev_dbg(&uap->node->dev, fmt, ## arg)
+#define pmz_error(fmt, arg...)	dev_err(&uap->node->dev, fmt, ## arg)
+#define pmz_info(fmt, arg...)	dev_info(&uap->node->dev, fmt, ## arg)
+#endif
 
 /*
  * At most 2 ESCCs with 2 ports each
@@ -17,6 +25,7 @@ struct uart_pmac_port {
 	struct uart_port		port;
 	struct uart_pmac_port		*mate;
 
+#ifdef CONFIG_PPC_PMAC
 	/* macio_dev for the escc holding this port (maybe be null on
 	 * early inited port)
 	 */
@@ -25,6 +34,9 @@ struct uart_pmac_port {
 	 * of "escc" node (ie. ch-a or ch-b)
 	 */
 	struct device_node		*node;
+#else
+	struct platform_device		*node;
+#endif
 
 	/* Port type as obtained from device tree (IRDA, modem, ...) */
 	int				port_type;
@@ -55,10 +67,12 @@ struct uart_pmac_port {
 	volatile u8			__iomem *control_reg;
 	volatile u8			__iomem *data_reg;
 
+#ifdef CONFIG_PPC_PMAC
 	unsigned int			tx_dma_irq;
 	unsigned int			rx_dma_irq;
 	volatile struct dbdma_regs	__iomem *tx_dma_regs;
 	volatile struct dbdma_regs	__iomem *rx_dma_regs;
+#endif
 
 	struct ktermios			termios_cache;
 };

drivers/video/macmodes.c

@@ -33,6 +33,10 @@
 
 static const struct fb_videomode mac_modedb[] = {
     {
+	/* 512x384, 60Hz, Non-Interlaced (15.67 MHz dot clock) */
+	"mac2", 60, 512, 384, 63828, 80, 16, 19, 1, 32, 3,
+	0, FB_VMODE_NONINTERLACED
+    }, {
 	/* 640x480, 60 Hz, Non-Interlaced (25.175 MHz dotclock) */
 	"mac5", 60, 640, 480, 39722, 32, 32, 33, 10, 96, 2,
 	0, FB_VMODE_NONINTERLACED
@@ -40,6 +44,10 @@ static const struct fb_videomode mac_modedb[] = {
 	/* 640x480, 67Hz, Non-Interlaced (30.0 MHz dotclock) */
 	"mac6", 67, 640, 480, 33334, 80, 80, 39, 3, 64, 3,
 	0, FB_VMODE_NONINTERLACED
+    }, {
+	/* 640x870, 75Hz (portrait), Non-Interlaced (57.28 MHz dot clock) */
+	"mac7", 75, 640, 870, 17457, 80, 32, 42, 3, 80, 3,
+	0, FB_VMODE_NONINTERLACED
     }, {
 	/* 800x600, 56 Hz, Non-Interlaced (36.00 MHz dotclock) */
 	"mac9", 56, 800, 600, 27778, 112, 40, 22, 1, 72, 2,
@@ -104,10 +112,6 @@ static const struct fb_videomode mac_modedb[] = {
 	/* VMODE_512_384_60I: 512x384, 60Hz, Interlaced (NTSC) */
 	"mac1", 60, 512, 384, pixclock, left, right, upper, lower, hslen, vslen,
 	sync, FB_VMODE_INTERLACED
-    }, {
-	/* VMODE_512_384_60: 512x384, 60Hz, Non-Interlaced */
-    	"mac2", 60, 512, 384, pixclock, left, right, upper, lower, hslen, vslen,
-	sync, FB_VMODE_NONINTERLACED
     }, {
 	/* VMODE_640_480_50I: 640x480, 50Hz, Interlaced (PAL) */
 	"mac3", 50, 640, 480, pixclock, left, right, upper, lower, hslen, vslen,
@@ -116,10 +120,6 @@ static const struct fb_videomode mac_modedb[] = {
 	/* VMODE_640_480_60I: 640x480, 60Hz, Interlaced (NTSC) */
 	"mac4", 60, 640, 480, pixclock, left, right, upper, lower, hslen, vslen,
 	sync, FB_VMODE_INTERLACED
-    }, {
-	/* VMODE_640_870_75P: 640x870, 75Hz (portrait), Non-Interlaced */
-	"mac7", 75, 640, 870, pixclock, left, right, upper, lower, hslen, vslen,
-	sync, FB_VMODE_NONINTERLACED
     }, {
 	/* VMODE_768_576_50I: 768x576, 50Hz (PAL full frame), Interlaced */
 	"mac8", 50, 768, 576, pixclock, left, right, upper, lower, hslen, vslen,
@@ -134,38 +134,42 @@ static const struct fb_videomode mac_modedb[] = {
      *
      *  These MUST be ordered in
      *    - increasing resolution
-     *    - decreasing refresh rate
+     *    - decreasing pixel clock period
      */
 
 static const struct mode_map {
     int vmode;
     const struct fb_videomode *mode;
 } mac_modes[] = {
+    /* 512x384 */
+    { VMODE_512_384_60, &mac_modedb[0] },
     /* 640x480 */
-    { VMODE_640_480_67, &mac_modedb[1] },
-    { VMODE_640_480_60, &mac_modedb[0] },
+    { VMODE_640_480_60, &mac_modedb[1] },
+    { VMODE_640_480_67, &mac_modedb[2] },
+    /* 640x870 */
+    { VMODE_640_870_75P, &mac_modedb[3] },
     /* 800x600 */
-    { VMODE_800_600_75, &mac_modedb[5] },
-    { VMODE_800_600_72, &mac_modedb[4] },
-    { VMODE_800_600_60, &mac_modedb[3] },
-    { VMODE_800_600_56, &mac_modedb[2] },
+    { VMODE_800_600_56, &mac_modedb[4] },
+    { VMODE_800_600_60, &mac_modedb[5] },
+    { VMODE_800_600_75, &mac_modedb[7] },
+    { VMODE_800_600_72, &mac_modedb[6] },
     /* 832x624 */
-    { VMODE_832_624_75, &mac_modedb[6] },
+    { VMODE_832_624_75, &mac_modedb[8] },
     /* 1024x768 */
-    { VMODE_1024_768_75, &mac_modedb[10] },
-    { VMODE_1024_768_75V, &mac_modedb[9] },
-    { VMODE_1024_768_70, &mac_modedb[8] },
-    { VMODE_1024_768_60, &mac_modedb[7] },
+    { VMODE_1024_768_60, &mac_modedb[9] },
+    { VMODE_1024_768_70, &mac_modedb[10] },
+    { VMODE_1024_768_75V, &mac_modedb[11] },
+    { VMODE_1024_768_75, &mac_modedb[12] },
     /* 1152x768 */
-    { VMODE_1152_768_60, &mac_modedb[14] },
+    { VMODE_1152_768_60, &mac_modedb[16] },
     /* 1152x870 */
-    { VMODE_1152_870_75, &mac_modedb[11] },
+    { VMODE_1152_870_75, &mac_modedb[13] },
     /* 1280x960 */
-    { VMODE_1280_960_75, &mac_modedb[12] },
+    { VMODE_1280_960_75, &mac_modedb[14] },
     /* 1280x1024 */
-    { VMODE_1280_1024_75, &mac_modedb[13] },
+    { VMODE_1280_1024_75, &mac_modedb[15] },
     /* 1600x1024 */
-    { VMODE_1600_1024_60, &mac_modedb[15] },
+    { VMODE_1600_1024_60, &mac_modedb[17] },
     { -1, NULL }
 };
 
@@ -299,7 +303,6 @@ EXPORT_SYMBOL(mac_vmode_to_var);
 int mac_var_to_vmode(const struct fb_var_screeninfo *var, int *vmode,
 		     int *cmode)
 {
-    const struct fb_videomode *mode = NULL;
     const struct mode_map *map;
 
     if (var->bits_per_pixel <= 8)
@@ -311,8 +314,13 @@ int mac_var_to_vmode(const struct fb_var_screeninfo *var, int *vmode,
     else
 	return -EINVAL;
 
+    /*
+     * Find the mac_mode with a matching resolution or failing that, the
+     * closest larger resolution. Skip modes with a shorter pixel clock period.
+     */
     for (map = mac_modes; map->vmode != -1; map++) {
-	mode = map->mode;
+	const struct fb_videomode *mode = map->mode;
+
 	if (var->xres > mode->xres || var->yres > mode->yres)
 	    continue;
 	if (var->xres_virtual > mode->xres || var->yres_virtual > mode->yres)
@@ -322,6 +330,24 @@ int mac_var_to_vmode(const struct fb_var_screeninfo *var, int *vmode,
 	if ((var->vmode & FB_VMODE_MASK) != mode->vmode)
 	    continue;
 	*vmode = map->vmode;
+
+	/*
+	 * Having found a good resolution, find the matching pixel clock
+	 * or failing that, the closest longer pixel clock period.
+	 */
+	map++;
+	while (map->vmode != -1) {
+	    const struct fb_videomode *clk_mode = map->mode;
+
+	    if (mode->xres != clk_mode->xres || mode->yres != clk_mode->yres)
+		break;
+	    if (var->pixclock > mode->pixclock)
+	        break;
+	    if (mode->vmode != clk_mode->vmode)
+		continue;
+	    *vmode = map->vmode;
+	    map++;
+	}
 	return 0;
     }
     return -EINVAL;

drivers/video/valkyriefb.c

@@ -69,7 +69,7 @@
 #ifdef CONFIG_MAC
 /* We don't yet have functions to read the PRAM... perhaps we can
    adapt them from the PPC code? */
-static int default_vmode = VMODE_640_480_67;
+static int default_vmode = VMODE_CHOOSE;
 static int default_cmode = CMODE_8;
 #else
 static int default_vmode = VMODE_NVRAM;
@@ -326,11 +326,11 @@ int __init valkyriefb_init(void)
 
 #ifdef CONFIG_MAC
 	if (!MACH_IS_MAC)
-		return 0;
+		return -ENODEV;
 	if (!(mac_bi_data.id == MAC_MODEL_Q630
 	      /* I'm not sure about this one */
 	    || mac_bi_data.id == MAC_MODEL_P588))
-		return 0;
+		return -ENODEV;
 
 	/* Hardcoded addresses... welcome to 68k Macintosh country :-) */
 	frame_buffer_phys = 0xf9000000;

drivers/video/valkyriefb.h

@@ -134,15 +134,7 @@ static struct valkyrie_regvals valkyrie_reg_init_14 = {
     { 1024, 0 },
 	1024, 768
 };
-
-/* Register values for 800x600, 72Hz mode (11) */
-static struct valkyrie_regvals valkyrie_reg_init_11 = {
-    13,
-    { 17, 27, 3 },  /* pixel clock = 49.63MHz for V=71.66Hz */
-    { 800, 0 },
-	800, 600
-};
-#endif /* CONFIG_MAC */
+#endif /* !defined CONFIG_MAC */
 
 /* Register values for 832x624, 75Hz mode (13) */
 static struct valkyrie_regvals valkyrie_reg_init_13 = {
@@ -152,6 +144,14 @@ static struct valkyrie_regvals valkyrie_reg_init_13 = {
 	832, 624
 };
 
+/* Register values for 800x600, 72Hz mode (11) */
+static struct valkyrie_regvals valkyrie_reg_init_11 = {
+    13,
+    { 17, 27, 3 },  /* pixel clock = 49.63MHz for V=71.66Hz */
+    { 800, 0 },
+	800, 600
+};
+
 /* Register values for 800x600, 60Hz mode (10) */
 static struct valkyrie_regvals valkyrie_reg_init_10 = {
     12,
@@ -188,24 +188,13 @@ static struct valkyrie_regvals *valkyrie_reg_init[VMODE_MAX] = {
 	NULL,
 	NULL,
 	&valkyrie_reg_init_10,
-#ifdef CONFIG_MAC
-	NULL,
-	NULL,
-	&valkyrie_reg_init_13,
-	NULL,
-	NULL,
-	NULL,
-	NULL,
-#else
 	&valkyrie_reg_init_11,
 	NULL,
 	&valkyrie_reg_init_13,
+#ifndef CONFIG_MAC
 	&valkyrie_reg_init_14,
 	&valkyrie_reg_init_15,
 	NULL,
 	&valkyrie_reg_init_17,
 #endif
-	NULL,
-	NULL,
-	NULL
 };