Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc

* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (249 commits)
  powerpc: Fix pte_update for CONFIG_PTE_64BIT and !PTE_ATOMIC_UPDATES
  powerpc: Fix a build problem on ppc32 with new DMA_ATTRs
  ibm_newemac: Add MII mode support to the EMAC RGMII bridge.
  powerpc: Don't spin on sync instruction at boot time
  powerpc: Add VSX load/store alignment exception handler
  powerpc: fix giveup_vsx to save registers correctly
  powerpc: support for latencytop
  powerpc: Remove unnecessary condition when sanity-checking WIMG bits
  powerpc: Add PPC_FEATURE_PSERIES_PERFMON_COMPAT
  powerpc: Add driver for Barrier Synchronization Register
  powerpc: mman.h export fixups
  powerpc/fsl: update crypto node definition and device tree instances
  powerpc/fsl: Refactor device bindings
  powerpc/85xx: Minor fixes for 85xxds and 8536ds board.
  powerpc: Add 82xx/83xx/86xx to 6xx Multiplatform
  powerpc/85xx: publish of device for cds platforms
  powerpc/booke: don't reinitialize time base
  powerpc/86xx: Refactor pic init
  powerpc/CPM: Add i2c pins to dts and board setup
  cpm_uart: Support uart_wait_until_sent()
  ...

1 files changed, 0 insertions, 1043 deletions

diff --git a/arch/ppc/platforms/prep_setup.c b/arch/ppc/platforms/prep_setup.c
deleted file mode 100644
index 465b658c927d..000000000000
--- a/arch/ppc/platforms/prep_setup.c
+++ /dev/null
@@ -1,1043 +0,0 @@
-/*
- *  Copyright (C) 1995  Linus Torvalds
- *  Adapted from 'alpha' version by Gary Thomas
- *  Modified by Cort Dougan (cort@cs.nmt.edu)
- *
- * Support for PReP (Motorola MTX/MVME)
- * by Troy Benjegerdes (hozer@drgw.net)
- */
-
-/*
- * bootup setup stuff..
- */
-
-#include <linux/delay.h>
-#include <linux/module.h>
-#include <linux/errno.h>
-#include <linux/sched.h>
-#include <linux/kernel.h>
-#include <linux/mm.h>
-#include <linux/stddef.h>
-#include <linux/unistd.h>
-#include <linux/ptrace.h>
-#include <linux/slab.h>
-#include <linux/user.h>
-#include <linux/a.out.h>
-#include <linux/screen_info.h>
-#include <linux/major.h>
-#include <linux/interrupt.h>
-#include <linux/reboot.h>
-#include <linux/init.h>
-#include <linux/initrd.h>
-#include <linux/ioport.h>
-#include <linux/console.h>
-#include <linux/timex.h>
-#include <linux/pci.h>
-#include <linux/seq_file.h>
-#include <linux/root_dev.h>
-
-#include <asm/sections.h>
-#include <asm/mmu.h>
-#include <asm/processor.h>
-#include <asm/residual.h>
-#include <asm/io.h>
-#include <asm/pgtable.h>
-#include <asm/cache.h>
-#include <asm/dma.h>
-#include <asm/machdep.h>
-#include <asm/mc146818rtc.h>
-#include <asm/mk48t59.h>
-#include <asm/prep_nvram.h>
-#include <asm/raven.h>
-#include <asm/vga.h>
-#include <asm/time.h>
-#include <asm/mpc10x.h>
-#include <asm/i8259.h>
-#include <asm/open_pic.h>
-#include <asm/pci-bridge.h>
-#include <asm/todc.h>
-
-/* prep registers for L2 */
-#define CACHECRBA       0x80000823      /* Cache configuration register address */
-#define L2CACHE_MASK	0x03	/* Mask for 2 L2 Cache bits */
-#define L2CACHE_512KB	0x00	/* 512KB */
-#define L2CACHE_256KB	0x01	/* 256KB */
-#define L2CACHE_1MB	0x02	/* 1MB */
-#define L2CACHE_NONE	0x03	/* NONE */
-#define L2CACHE_PARITY  0x08    /* Mask for L2 Cache Parity Protected bit */
-
-TODC_ALLOC();
-
-extern unsigned char prep_nvram_read_val(int addr);
-extern void prep_nvram_write_val(int addr,
-				 unsigned char val);
-extern unsigned char rs_nvram_read_val(int addr);
-extern void rs_nvram_write_val(int addr,
-				 unsigned char val);
-extern void ibm_prep_init(void);
-
-extern void prep_find_bridges(void);
-
-int _prep_type;
-
-extern void prep_residual_setup_pci(char *irq_edge_mask_lo, char *irq_edge_mask_hi);
-extern void prep_sandalfoot_setup_pci(char *irq_edge_mask_lo, char *irq_edge_mask_hi);
-extern void prep_thinkpad_setup_pci(char *irq_edge_mask_lo, char *irq_edge_mask_hi);
-extern void prep_carolina_setup_pci(char *irq_edge_mask_lo, char *irq_edge_mask_hi);
-extern void prep_tiger1_setup_pci(char *irq_edge_mask_lo, char *irq_edge_mask_hi);
-
-
-#define cached_21	(((char *)(ppc_cached_irq_mask))[3])
-#define cached_A1	(((char *)(ppc_cached_irq_mask))[2])
-
-extern PTE *Hash, *Hash_end;
-extern unsigned long Hash_size, Hash_mask;
-extern int probingmem;
-extern unsigned long loops_per_jiffy;
-
-/* useful ISA ports */
-#define PREP_SYSCTL	0x81c
-/* present in the IBM reference design; possibly identical in Mot boxes: */
-#define PREP_IBM_SIMM_ID	0x803	/* SIMM size: 32 or 8 MiB */
-#define PREP_IBM_SIMM_PRESENCE	0x804
-#define PREP_IBM_EQUIPMENT	0x80c
-#define PREP_IBM_L2INFO	0x80d
-#define PREP_IBM_PM1	0x82a	/* power management register 1 */
-#define PREP_IBM_PLANAR	0x852	/* planar ID - identifies the motherboard */
-#define PREP_IBM_DISP	0x8c0	/* 4-digit LED display */
-
-/* Equipment Present Register masks: */
-#define PREP_IBM_EQUIPMENT_RESERVED	0x80
-#define PREP_IBM_EQUIPMENT_SCSIFUSE	0x40
-#define PREP_IBM_EQUIPMENT_L2_COPYBACK	0x08
-#define PREP_IBM_EQUIPMENT_L2_256	0x04
-#define PREP_IBM_EQUIPMENT_CPU	0x02
-#define PREP_IBM_EQUIPMENT_L2	0x01
-
-/* planar ID values: */
-/* Sandalfoot/Sandalbow (6015/7020) */
-#define PREP_IBM_SANDALFOOT	0xfc
-/* Woodfield, Thinkpad 850/860 (6042/7249) */
-#define PREP_IBM_THINKPAD	0xff /* planar ID unimplemented */
-/* PowerSeries 830/850 (6050/6070) */
-#define PREP_IBM_CAROLINA_IDE_0	0xf0
-#define PREP_IBM_CAROLINA_IDE_1	0xf1
-#define PREP_IBM_CAROLINA_IDE_2	0xf2
-#define PREP_IBM_CAROLINA_IDE_3	0xf3
-/* 7248-43P */
-#define PREP_IBM_CAROLINA_SCSI_0	0xf4
-#define PREP_IBM_CAROLINA_SCSI_1	0xf5
-#define PREP_IBM_CAROLINA_SCSI_2	0xf6
-#define PREP_IBM_CAROLINA_SCSI_3	0xf7 /* missing from Carolina Tech Spec */
-/* Tiger1 (7043-140) */
-#define PREP_IBM_TIGER1_133		0xd1
-#define PREP_IBM_TIGER1_166		0xd2
-#define PREP_IBM_TIGER1_180		0xd3
-#define PREP_IBM_TIGER1_xxx		0xd4 /* unknown, but probably exists */
-#define PREP_IBM_TIGER1_333		0xd5 /* missing from Tiger Tech Spec */
-
-/* setup_ibm_pci:
- * 	set Motherboard_map_name, Motherboard_map, Motherboard_routes.
- * 	return 8259 edge/level masks.
- */
-void (*setup_ibm_pci)(char *irq_lo, char *irq_hi);
-
-extern char *Motherboard_map_name; /* for use in *_cpuinfo */
-
-/*
- * As found in the PReP reference implementation.
- * Used by Thinkpad, Sandalfoot (6015/7020), and all Motorola PReP.
- */
-static void __init
-prep_gen_enable_l2(void)
-{
-	outb(inb(PREP_SYSCTL) | 0x3, PREP_SYSCTL);
-}
-
-/* Used by Carolina and Tiger1 */
-static void __init
-prep_carolina_enable_l2(void)
-{
-	outb(inb(PREP_SYSCTL) | 0xc0, PREP_SYSCTL);
-}
-
-/* cpuinfo code common to all IBM PReP */
-static void
-prep_ibm_cpuinfo(struct seq_file *m)
-{
-	unsigned int equip_reg = inb(PREP_IBM_EQUIPMENT);
-
-	seq_printf(m, "machine\t\t: PReP %s\n", Motherboard_map_name);
-
-	seq_printf(m, "upgrade cpu\t: ");
-	if (equip_reg & PREP_IBM_EQUIPMENT_CPU) {
-		seq_printf(m, "not ");
-	}
-	seq_printf(m, "present\n");
-
-	/* print info about the SCSI fuse */
-	seq_printf(m, "scsi fuse\t: ");
-	if (equip_reg & PREP_IBM_EQUIPMENT_SCSIFUSE)
-		seq_printf(m, "ok");
-	else
-		seq_printf(m, "bad");
-	seq_printf(m, "\n");
-
-	/* print info about SIMMs */
-	if (have_residual_data) {
-		int i;
-		seq_printf(m, "simms\t\t: ");
-		for (i = 0; (res->ActualNumMemories) && (i < MAX_MEMS); i++) {
-			if (res->Memories[i].SIMMSize != 0)
-				seq_printf(m, "%d:%ldMiB ", i,
-					(res->Memories[i].SIMMSize > 1024) ?
-					res->Memories[i].SIMMSize>>20 :
-					res->Memories[i].SIMMSize);
-		}
-		seq_printf(m, "\n");
-	}
-}
-
-static int
-prep_gen_cpuinfo(struct seq_file *m)
-{
-	prep_ibm_cpuinfo(m);
-	return 0;
-}
-
-static int
-prep_sandalfoot_cpuinfo(struct seq_file *m)
-{
-	unsigned int equip_reg = inb(PREP_IBM_EQUIPMENT);
-
-	prep_ibm_cpuinfo(m);
-
-	/* report amount and type of L2 cache present */
-	seq_printf(m, "L2 cache\t: ");
-	if (equip_reg & PREP_IBM_EQUIPMENT_L2) {
-		seq_printf(m, "not present");
-	} else {
-		if (equip_reg & PREP_IBM_EQUIPMENT_L2_256)
-			seq_printf(m, "256KiB");
-		else
-			seq_printf(m, "unknown size");
-
-		if (equip_reg & PREP_IBM_EQUIPMENT_L2_COPYBACK)
-			seq_printf(m, ", copy-back");
-		else
-			seq_printf(m, ", write-through");
-	}
-	seq_printf(m, "\n");
-
-	return 0;
-}
-
-static int
-prep_thinkpad_cpuinfo(struct seq_file *m)
-{
-	unsigned int equip_reg = inb(PREP_IBM_EQUIPMENT);
-	char *cpubus_speed, *pci_speed;
-
-	prep_ibm_cpuinfo(m);
-
-	/* report amount and type of L2 cache present */
-	seq_printf(m, "l2 cache\t: ");
-	if ((equip_reg & 0x1) == 0) {
-		switch ((equip_reg & 0xc) >> 2) {
-			case 0x0:
-				seq_printf(m, "128KiB look-aside 2-way write-through\n");
-				break;
-			case 0x1:
-				seq_printf(m, "512KiB look-aside direct-mapped write-back\n");
-				break;
-			case 0x2:
-				seq_printf(m, "256KiB look-aside 2-way write-through\n");
-				break;
-			case 0x3:
-				seq_printf(m, "256KiB look-aside direct-mapped write-back\n");
-				break;
-		}
-	} else {
-		seq_printf(m, "not present\n");
-	}
-
-	/* report bus speeds because we can */
-	if ((equip_reg & 0x80) == 0) {
-		switch ((equip_reg & 0x30) >> 4) {
-			case 0x1:
-				cpubus_speed = "50";
-				pci_speed = "25";
-				break;
-			case 0x3:
-				cpubus_speed = "66";
-				pci_speed = "33";
-				break;
-			default:
-				cpubus_speed = "unknown";
-				pci_speed = "unknown";
-				break;
-		}
-	} else {
-		switch ((equip_reg & 0x30) >> 4) {
-			case 0x1:
-				cpubus_speed = "25";
-				pci_speed = "25";
-				break;
-			case 0x2:
-				cpubus_speed = "60";
-				pci_speed = "30";
-				break;
-			case 0x3:
-				cpubus_speed = "33";
-				pci_speed = "33";
-				break;
-			default:
-				cpubus_speed = "unknown";
-				pci_speed = "unknown";
-				break;
-		}
-	}
-	seq_printf(m, "60x bus\t\t: %sMHz\n", cpubus_speed);
-	seq_printf(m, "pci bus\t\t: %sMHz\n", pci_speed);
-
-	return 0;
-}
-
-static int
-prep_carolina_cpuinfo(struct seq_file *m)
-{
-	unsigned int equip_reg = inb(PREP_IBM_EQUIPMENT);
-
-	prep_ibm_cpuinfo(m);
-
-	/* report amount and type of L2 cache present */
-	seq_printf(m, "l2 cache\t: ");
-	if ((equip_reg & 0x1) == 0) {
-		unsigned int l2_reg = inb(PREP_IBM_L2INFO);
-
-		/* L2 size */
-		if ((l2_reg & 0x60) == 0)
-			seq_printf(m, "256KiB");
-		else if ((l2_reg & 0x60) == 0x20)
-			seq_printf(m, "512KiB");
-		else
-			seq_printf(m, "unknown size");
-
-		/* L2 type */
-		if ((l2_reg & 0x3) == 0)
-			seq_printf(m, ", async");
-		else if ((l2_reg & 0x3) == 1)
-			seq_printf(m, ", sync");
-		else
-			seq_printf(m, ", unknown type");
-
-		seq_printf(m, "\n");
-	} else {
-		seq_printf(m, "not present\n");
-	}
-
-	return 0;
-}
-
-static int
-prep_tiger1_cpuinfo(struct seq_file *m)
-{
-	unsigned int l2_reg = inb(PREP_IBM_L2INFO);
-
-	prep_ibm_cpuinfo(m);
-
-	/* report amount and type of L2 cache present */
-	seq_printf(m, "l2 cache\t: ");
-	if ((l2_reg & 0xf) == 0xf) {
-		seq_printf(m, "not present\n");
-	} else {
-		if (l2_reg & 0x8)
-			seq_printf(m, "async, ");
-		else
-			seq_printf(m, "sync burst, ");
-	
-		if (l2_reg & 0x4)
-			seq_printf(m, "parity, ");
-		else
-			seq_printf(m, "no parity, ");
-	
-		switch (l2_reg & 0x3) {
-			case 0x0:
-				seq_printf(m, "256KiB\n");
-				break;
-			case 0x1:
-				seq_printf(m, "512KiB\n");
-				break;
-			case 0x2:
-				seq_printf(m, "1MiB\n");
-				break;
-			default:
-				seq_printf(m, "unknown size\n");
-				break;
-		}
-	}
-
-	return 0;
-}
-
-
-/* Used by all Motorola PReP */
-static int
-prep_mot_cpuinfo(struct seq_file *m)
-{
-	unsigned int cachew = *((unsigned char *)CACHECRBA);
-
-	seq_printf(m, "machine\t\t: PReP %s\n", Motherboard_map_name);
-
-	/* report amount and type of L2 cache present */
-	seq_printf(m, "l2 cache\t: ");
-	switch (cachew & L2CACHE_MASK) {
-		case L2CACHE_512KB:
-			seq_printf(m, "512KiB");
-			break;
-		case L2CACHE_256KB:
-			seq_printf(m, "256KiB");
-			break;
-		case L2CACHE_1MB:
-			seq_printf(m, "1MiB");
-			break;
-		case L2CACHE_NONE:
-			seq_printf(m, "none\n");
-			goto no_l2;
-			break;
-		default:
-			seq_printf(m, "%x\n", cachew);
-	}
-
-	seq_printf(m, ", parity %s",
-			(cachew & L2CACHE_PARITY)? "enabled" : "disabled");
-
-	seq_printf(m, " SRAM:");
-
-	switch ( ((cachew & 0xf0) >> 4) & ~(0x3) ) {
-		case 1: seq_printf(m, "synchronous, parity, flow-through\n");
-				break;
-		case 2: seq_printf(m, "asynchronous, no parity\n");
-				break;
-		case 3: seq_printf(m, "asynchronous, parity\n");
-				break;
-		default:seq_printf(m, "synchronous, pipelined, no parity\n");
-				break;
-	}
-
-no_l2:
-	/* print info about SIMMs */
-	if (have_residual_data) {
-		int i;
-		seq_printf(m, "simms\t\t: ");
-		for (i = 0; (res->ActualNumMemories) && (i < MAX_MEMS); i++) {
-			if (res->Memories[i].SIMMSize != 0)
-				seq_printf(m, "%d:%ldM ", i,
-					(res->Memories[i].SIMMSize > 1024) ?
-					res->Memories[i].SIMMSize>>20 :
-					res->Memories[i].SIMMSize);
-		}
-		seq_printf(m, "\n");
-	}
-
-	return 0;
-}
-
-static void
-prep_restart(char *cmd)
-{
-#define PREP_SP92	0x92	/* Special Port 92 */
-	local_irq_disable(); /* no interrupts */
-
-	/* set exception prefix high - to the prom */
-	_nmask_and_or_msr(0, MSR_IP);
-
-	/* make sure bit 0 (reset) is a 0 */
-	outb( inb(PREP_SP92) & ~1L , PREP_SP92);
-	/* signal a reset to system control port A - soft reset */
-	outb( inb(PREP_SP92) | 1 , PREP_SP92);
-
-	while ( 1 ) ;
-	/* not reached */
-#undef PREP_SP92
-}
-
-static void
-prep_halt(void)
-{
-	local_irq_disable(); /* no interrupts */
-
-	/* set exception prefix high - to the prom */
-	_nmask_and_or_msr(0, MSR_IP);
-
-	while ( 1 ) ;
-	/* not reached */
-}
-
-/* Carrera is the power manager in the Thinkpads. Unfortunately not much is
- * known about it, so we can't power down.
- */
-static void
-prep_carrera_poweroff(void)
-{
-	prep_halt();
-}
-
-/*
- * On most IBM PReP's, power management is handled by a Signetics 87c750
- * behind the Utah component on the ISA bus. To access the 750 you must write
- * a series of nibbles to port 0x82a (decoded by the Utah). This is described
- * somewhat in the IBM Carolina Technical Specification.
- * -Hollis
- */
-static void
-utah_sig87c750_setbit(unsigned int bytenum, unsigned int bitnum, int value)
-{
-	/*
-	 * byte1: 0 0 0 1 0  d  a5 a4
-	 * byte2: 0 0 0 1 a3 a2 a1 a0
-	 *
-	 * d = the bit's value, enabled or disabled
-	 * (a5 a4 a3) = the byte number, minus 20
-	 * (a2 a1 a0) = the bit number
-	 *
-	 * example: set the 5th bit of byte 21 (21.5)
-	 *     a5 a4 a3 = 001 (byte 1)
-	 *     a2 a1 a0 = 101 (bit 5)
-	 *
-	 *     byte1 = 0001 0100 (0x14)
-	 *     byte2 = 0001 1101 (0x1d)
-	 */
-	unsigned char byte1=0x10, byte2=0x10;
-
-	/* the 750's '20.0' is accessed as '0.0' through Utah (which adds 20) */
-	bytenum -= 20;
-
-	byte1 |= (!!value) << 2;		/* set d */
-	byte1 |= (bytenum >> 1) & 0x3;	/* set a5, a4 */
-
-	byte2 |= (bytenum & 0x1) << 3;	/* set a3 */
-	byte2 |= bitnum & 0x7;			/* set a2, a1, a0 */
-
-	outb(byte1, PREP_IBM_PM1);	/* first nibble */
-	mb();
-	udelay(100);				/* important: let controller recover */
-
-	outb(byte2, PREP_IBM_PM1);	/* second nibble */
-	mb();
-	udelay(100);				/* important: let controller recover */
-}
-
-static void
-prep_sig750_poweroff(void)
-{
-	/* tweak the power manager found in most IBM PRePs (except Thinkpads) */
-
-	local_irq_disable();
-	/* set exception prefix high - to the prom */
-	_nmask_and_or_msr(0, MSR_IP);
-
-	utah_sig87c750_setbit(21, 5, 1); /* set bit 21.5, "PMEXEC_OFF" */
-
-	while (1) ;
-	/* not reached */
-}
-
-static int
-prep_show_percpuinfo(struct seq_file *m, int i)
-{
-	/* PREP's without residual data will give incorrect values here */
-	seq_printf(m, "clock\t\t: ");
-	if (have_residual_data)
-		seq_printf(m, "%ldMHz\n",
-			   (res->VitalProductData.ProcessorHz > 1024) ?
-			   res->VitalProductData.ProcessorHz / 1000000 :
-			   res->VitalProductData.ProcessorHz);
-	else
-		seq_printf(m, "???\n");
-
-	return 0;
-}
-
-/*
- * Fill out screen_info according to the residual data. This allows us to use
- * at least vesafb.
- */
-static void __init
-prep_init_vesa(void)
-{
-#if     (defined(CONFIG_FB_VGA16) || defined(CONFIG_FB_VGA16_MODULE) || \
-	 defined(CONFIG_FB_VESA))
-	PPC_DEVICE *vgadev = NULL;
-
-	if (have_residual_data)
-		vgadev = residual_find_device(~0, NULL, DisplayController,
-							SVGAController, -1, 0);
-
-	if (vgadev != NULL) {
-		PnP_TAG_PACKET *pkt;
-
-		pkt = PnP_find_large_vendor_packet(
-				(unsigned char *)&res->DevicePnPHeap[vgadev->AllocatedOffset],
-				0x04, 0); /* 0x04 = Display Tag */
-		if (pkt != NULL) {
-			unsigned char *ptr = (unsigned char *)pkt;
-
-			if (ptr[4]) {
-				/* graphics mode */
-				screen_info.orig_video_isVGA = VIDEO_TYPE_VLFB;
-
-				screen_info.lfb_depth = ptr[4] * 8;
-
-				screen_info.lfb_width = swab16(*(short *)(ptr+6));
-				screen_info.lfb_height = swab16(*(short *)(ptr+8));
-				screen_info.lfb_linelength = swab16(*(short *)(ptr+10));
-
-				screen_info.lfb_base = swab32(*(long *)(ptr+12));
-				screen_info.lfb_size = swab32(*(long *)(ptr+20)) / 65536;
-			}
-		}
-	}
-#endif
-}
-
-/*
- * Set DBAT 2 to access 0x80000000 so early progress messages will work
- */
-static __inline__ void
-prep_set_bat(void)
-{
-	/* wait for all outstanding memory access to complete */
-	mb();
-
-	/* setup DBATs */
-	mtspr(SPRN_DBAT2U, 0x80001ffe);
-	mtspr(SPRN_DBAT2L, 0x8000002a);
-
-	/* wait for updates */
-	mb();
-}
-
-/*
- * IBM 3-digit status LED
- */
-static unsigned int ibm_statusled_base;
-
-static void
-ibm_statusled_progress(char *s, unsigned short hex);
-
-static int
-ibm_statusled_panic(struct notifier_block *dummy1, unsigned long dummy2,
-		    void * dummy3)
-{
-	ibm_statusled_progress(NULL, 0x505); /* SOS */
-	return NOTIFY_DONE;
-}
-
-static struct notifier_block ibm_statusled_block = {
-	ibm_statusled_panic,
-	NULL,
-	INT_MAX /* try to do it first */
-};
-
-static void
-ibm_statusled_progress(char *s, unsigned short hex)
-{
-	static int notifier_installed;
-	/*
-	 * Progress uses 4 digits and we have only 3.  So, we map 0xffff to
-	 * 0xfff for display switch off.  Out of range values are mapped to
-	 * 0xeff, as I'm told 0xf00 and above are reserved for hardware codes.
-	 * Install the panic notifier when the display is first switched off.
-	 */
-	if (hex == 0xffff) {
-		hex = 0xfff;
-		if (!notifier_installed) {
-			++notifier_installed;
-			atomic_notifier_chain_register(&panic_notifier_list,
-						&ibm_statusled_block);
-		}
-	}
-	else
-		if (hex > 0xfff)
-			hex = 0xeff;
-
-	mb();
-	outw(hex, ibm_statusled_base);
-}
-
-static void __init
-ibm_statusled_init(void)
-{
-	/*
-	 * The IBM 3-digit LED display is specified in the residual data
-	 * as an operator panel device, type "System Status LED".  Find
-	 * that device and determine its address.  We validate all the
-	 * other parameters on the off-chance another, similar device
-	 * exists.
-	 */
-	if (have_residual_data) {
-		PPC_DEVICE *led;
-		PnP_TAG_PACKET *pkt;
-
-		led = residual_find_device(~0, NULL, SystemPeripheral,
-					   OperatorPanel, SystemStatusLED, 0);
-		if (!led)
-			return;
-
-		pkt = PnP_find_packet((unsigned char *)
-		       &res->DevicePnPHeap[led->AllocatedOffset], S8_Packet, 0);
-		if (!pkt)
-			return;
-
-		if (pkt->S8_Pack.IOInfo != ISAAddr16bit)
-			return;
-		if (*(unsigned short *)pkt->S8_Pack.RangeMin !=
-		    *(unsigned short *)pkt->S8_Pack.RangeMax)
-			return;
-		if (pkt->S8_Pack.IOAlign != 2)
-			return;
-		if (pkt->S8_Pack.IONum != 2)
-			return;
-
-		ibm_statusled_base = ld_le16((unsigned short *)
-					     (pkt->S8_Pack.RangeMin));
-		ppc_md.progress = ibm_statusled_progress;
-	}
-}
-
-static void __init
-prep_setup_arch(void)
-{
-	unsigned char reg;
-	int is_ide=0;
-
-	/* init to some ~sane value until calibrate_delay() runs */
-	loops_per_jiffy = 50000000;
-
-	/* Lookup PCI host bridges */
-	prep_find_bridges();
-
-	/* Set up floppy in PS/2 mode */
-	outb(0x09, SIO_CONFIG_RA);
-	reg = inb(SIO_CONFIG_RD);
-	reg = (reg & 0x3F) | 0x40;
-	outb(reg, SIO_CONFIG_RD);
-	outb(reg, SIO_CONFIG_RD);	/* Have to write twice to change! */
-
-	switch ( _prep_type )
-	{
-	case _PREP_IBM:
-		reg = inb(PREP_IBM_PLANAR);
-		printk(KERN_INFO "IBM planar ID: %02x", reg);
-		switch (reg) {
-			case PREP_IBM_SANDALFOOT:
-				prep_gen_enable_l2();
-				setup_ibm_pci = prep_sandalfoot_setup_pci;
-				ppc_md.power_off = prep_sig750_poweroff;
-				ppc_md.show_cpuinfo = prep_sandalfoot_cpuinfo;
-				break;
-			case PREP_IBM_THINKPAD:
-				prep_gen_enable_l2();
-				setup_ibm_pci = prep_thinkpad_setup_pci;
-				ppc_md.power_off = prep_carrera_poweroff;
-				ppc_md.show_cpuinfo = prep_thinkpad_cpuinfo;
-				break;
-			default:
-				if (have_residual_data) {
-					prep_gen_enable_l2();
-					setup_ibm_pci = prep_residual_setup_pci;
-					ppc_md.power_off = prep_halt;
-					ppc_md.show_cpuinfo = prep_gen_cpuinfo;
-					break;
-				}
-				else
-					printk(" - unknown! Assuming Carolina");
-					/* fall through */
-			case PREP_IBM_CAROLINA_IDE_0:
-			case PREP_IBM_CAROLINA_IDE_1:
-			case PREP_IBM_CAROLINA_IDE_2:
-			case PREP_IBM_CAROLINA_IDE_3:
-				is_ide = 1;
-			case PREP_IBM_CAROLINA_SCSI_0:
-			case PREP_IBM_CAROLINA_SCSI_1:
-			case PREP_IBM_CAROLINA_SCSI_2:
-			case PREP_IBM_CAROLINA_SCSI_3:
-				prep_carolina_enable_l2();
-				setup_ibm_pci = prep_carolina_setup_pci;
-				ppc_md.power_off = prep_sig750_poweroff;
-				ppc_md.show_cpuinfo = prep_carolina_cpuinfo;
-				break;
-			case PREP_IBM_TIGER1_133:
-			case PREP_IBM_TIGER1_166:
-			case PREP_IBM_TIGER1_180:
-			case PREP_IBM_TIGER1_xxx:
-			case PREP_IBM_TIGER1_333:
-				prep_carolina_enable_l2();
-				setup_ibm_pci = prep_tiger1_setup_pci;
-				ppc_md.power_off = prep_sig750_poweroff;
-				ppc_md.show_cpuinfo = prep_tiger1_cpuinfo;
-				break;
-		}
-		printk("\n");
-
-		/* default root device */
-		if (is_ide)
-			ROOT_DEV = MKDEV(IDE0_MAJOR, 3);
-		else
-			ROOT_DEV = MKDEV(SCSI_DISK0_MAJOR, 3);
-
-		break;
-	case _PREP_Motorola:
-		prep_gen_enable_l2();
-		ppc_md.power_off = prep_halt;
-		ppc_md.show_cpuinfo = prep_mot_cpuinfo;
-
-#ifdef CONFIG_BLK_DEV_INITRD
-		if (initrd_start)
-			ROOT_DEV = Root_RAM0;
-		else
-#endif
-#ifdef CONFIG_ROOT_NFS
-			ROOT_DEV = Root_NFS;
-#else
-			ROOT_DEV = Root_SDA2;
-#endif
-		break;
-	}
-
-	/* Read in NVRAM data */
-	init_prep_nvram();
-
-	/* if no bootargs, look in NVRAM */
-	if ( cmd_line[0] == '\0' ) {
-		char *bootargs;
-		 bootargs = prep_nvram_get_var("bootargs");
-		 if (bootargs != NULL) {
-			 strcpy(cmd_line, bootargs);
-			 /* again.. */
-			 strcpy(boot_command_line, cmd_line);
-		}
-	}
-
-	prep_init_vesa();
-
-	switch (_prep_type) {
-	case _PREP_Motorola:
-		raven_init();
-		break;
-	case _PREP_IBM:
-		ibm_prep_init();
-		break;
-	}
-
-#ifdef CONFIG_VGA_CONSOLE
-	/* vgacon.c needs to know where we mapped IO memory in io_block_mapping() */
-	vgacon_remap_base = 0xf0000000;
-	conswitchp = &vga_con;
-#endif
-}
-
-/*
- * First, see if we can get this information from the residual data.
- * This is important on some IBM PReP systems.  If we cannot, we let the
- * TODC code handle doing this.
- */
-static void __init
-prep_calibrate_decr(void)
-{
-	if (have_residual_data) {
-		unsigned long freq, divisor = 4;
-
-		if ( res->VitalProductData.ProcessorBusHz ) {
-			freq = res->VitalProductData.ProcessorBusHz;
-			printk("time_init: decrementer frequency = %lu.%.6lu MHz\n",
-					(freq/divisor)/1000000,
-					(freq/divisor)%1000000);
-			tb_to_us = mulhwu_scale_factor(freq/divisor, 1000000);
-			tb_ticks_per_jiffy = freq / HZ / divisor;
-		}
-	}
-	else
-		todc_calibrate_decr();
-}
-
-static void __init
-prep_init_IRQ(void)
-{
-	unsigned int pci_viddid, pci_did;
-
-	if (OpenPIC_Addr != NULL) {
-		openpic_init(NUM_8259_INTERRUPTS);
-		/* We have a cascade on OpenPIC IRQ 0, Linux IRQ 16 */
-		openpic_hookup_cascade(NUM_8259_INTERRUPTS, "82c59 cascade",
-				       i8259_irq);
-	}
-
-	if (have_residual_data) {
-		i8259_init(residual_isapic_addr(), 0);
-		return;
-	}
-
-	/* If we have a Raven PCI bridge or a Hawk PCI bridge / Memory
-	 * controller, we poll (as they have a different int-ack address). */
-	early_read_config_dword(NULL, 0, 0, PCI_VENDOR_ID, &pci_viddid);
-	pci_did = (pci_viddid & 0xffff0000) >> 16;
-	if (((pci_viddid & 0xffff) == PCI_VENDOR_ID_MOTOROLA)
-			&& ((pci_did == PCI_DEVICE_ID_MOTOROLA_RAVEN)
-				|| (pci_did == PCI_DEVICE_ID_MOTOROLA_HAWK)))
-		i8259_init(0, 0);
-	else
-		/* PCI interrupt ack address given in section 6.1.8 of the
-		 * PReP specification. */
-		i8259_init(MPC10X_MAPA_PCI_INTACK_ADDR, 0);
-}
-
-#ifdef CONFIG_SMP
-/* PReP (MTX) support */
-static int __init
-smp_prep_probe(void)
-{
-	extern int mot_multi;
-
-	if (mot_multi) {
-		openpic_request_IPIs();
-		smp_hw_index[1] = 1;
-		return 2;
-	}
-
-	return 1;
-}
-
-static void __init
-smp_prep_kick_cpu(int nr)
-{
-	*(unsigned long *)KERNELBASE = nr;
-	asm volatile("dcbf 0,%0"::"r"(KERNELBASE):"memory");
-	printk("CPU1 released, waiting\n");
-}
-
-static void __init
-smp_prep_setup_cpu(int cpu_nr)
-{
-	if (OpenPIC_Addr)
-		do_openpic_setup_cpu();
-}
-
-static struct smp_ops_t prep_smp_ops = {
-	smp_openpic_message_pass,
-	smp_prep_probe,
-	smp_prep_kick_cpu,
-	smp_prep_setup_cpu,
-	.give_timebase = smp_generic_give_timebase,
-	.take_timebase = smp_generic_take_timebase,
-};
-#endif /* CONFIG_SMP */
-
-/*
- * Setup the bat mappings we're going to load that cover
- * the io areas.  RAM was mapped by mapin_ram().
- * -- Cort
- */
-static void __init
-prep_map_io(void)
-{
-	io_block_mapping(0x80000000, PREP_ISA_IO_BASE, 0x10000000, _PAGE_IO);
-	io_block_mapping(0xf0000000, PREP_ISA_MEM_BASE, 0x08000000, _PAGE_IO);
-}
-
-static int __init
-prep_request_io(void)
-{
-#ifdef CONFIG_NVRAM
-	request_region(PREP_NVRAM_AS0, 0x8, "nvram");
-#endif
-	request_region(0x00,0x20,"dma1");
-	request_region(0x40,0x20,"timer");
-	request_region(0x80,0x10,"dma page reg");
-	request_region(0xc0,0x20,"dma2");
-
-	return 0;
-}
-
-device_initcall(prep_request_io);
-
-void __init
-prep_init(unsigned long r3, unsigned long r4, unsigned long r5,
-		unsigned long r6, unsigned long r7)
-{
-#ifdef CONFIG_PREP_RESIDUAL
-	/* make a copy of residual data */
-	if ( r3 ) {
-		memcpy((void *)res,(void *)(r3+KERNELBASE),
-			 sizeof(RESIDUAL));
-	}
-#endif
-
-	isa_io_base = PREP_ISA_IO_BASE;
-	isa_mem_base = PREP_ISA_MEM_BASE;
-	pci_dram_offset = PREP_PCI_DRAM_OFFSET;
-	ISA_DMA_THRESHOLD = 0x00ffffff;
-	DMA_MODE_READ = 0x44;
-	DMA_MODE_WRITE = 0x48;
-	ppc_do_canonicalize_irqs = 1;
-
-	/* figure out what kind of prep workstation we are */
-	if (have_residual_data) {
-		if ( !strncmp(res->VitalProductData.PrintableModel,"IBM",3) )
-			_prep_type = _PREP_IBM;
-		else
-			_prep_type = _PREP_Motorola;
-	}
-	else {
-		/* assume motorola if no residual (netboot?) */
-		_prep_type = _PREP_Motorola;
-	}
-
-#ifdef CONFIG_PREP_RESIDUAL
-	/* Switch off all residual data processing if the user requests it */
-	if (strstr(cmd_line, "noresidual") != NULL)
-			res = NULL;
-#endif
-
-	/* Initialise progress early to get maximum benefit */
-	prep_set_bat();
-	ibm_statusled_init();
-
-	ppc_md.setup_arch     = prep_setup_arch;
-	ppc_md.show_percpuinfo = prep_show_percpuinfo;
-	ppc_md.show_cpuinfo   = NULL; /* set in prep_setup_arch() */
-	ppc_md.init_IRQ       = prep_init_IRQ;
-	/* this gets changed later on if we have an OpenPIC -- Cort */
-	ppc_md.get_irq        = i8259_irq;
-
-	ppc_md.phys_mem_access_prot = pci_phys_mem_access_prot;
-
-	ppc_md.restart        = prep_restart;
-	ppc_md.power_off      = NULL; /* set in prep_setup_arch() */
-	ppc_md.halt           = prep_halt;
-
-	ppc_md.nvram_read_val = prep_nvram_read_val;
-	ppc_md.nvram_write_val = prep_nvram_write_val;
-
-	ppc_md.time_init      = todc_time_init;
-	if (_prep_type == _PREP_IBM) {
-		ppc_md.rtc_read_val = todc_mc146818_read_val;
-		ppc_md.rtc_write_val = todc_mc146818_write_val;
-		TODC_INIT(TODC_TYPE_MC146818, RTC_PORT(0), NULL, RTC_PORT(1),
-				8);
-	} else {
-		TODC_INIT(TODC_TYPE_MK48T59, PREP_NVRAM_AS0, PREP_NVRAM_AS1,
-				PREP_NVRAM_DATA, 8);
-	}
-
-	ppc_md.calibrate_decr = prep_calibrate_decr;
-	ppc_md.set_rtc_time   = todc_set_rtc_time;
-	ppc_md.get_rtc_time   = todc_get_rtc_time;
-
-	ppc_md.setup_io_mappings = prep_map_io;
-
-#ifdef CONFIG_SMP
-	smp_ops			 = &prep_smp_ops;
-#endif /* CONFIG_SMP */
-}