[POWERPC] Remove APUS support from arch/ppc

Current status of APUS:
- arch/powerpc/: removed in 2.6.23
- arch/ppc/: marked BROKEN since 2 years

This therefore removes the remaining parts of APUS support from
arch/ppc, include/asm-ppc, arch/powerpc and include/asm-powerpc.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Paul Mackerras <paulus@samba.org>

4 files changed, 0 insertions, 1043 deletions

diff --git a/arch/ppc/platforms/Makefile b/arch/ppc/platforms/Makefile
index e17fad4..40f53fb 100644
--- a/arch/ppc/platforms/Makefile
+++ b/arch/ppc/platforms/Makefile
@@ -2,10 +2,6 @@
 # Makefile for the linux kernel.
 #
 
-obj-$(CONFIG_APUS)		+= apus_setup.o
-ifeq ($(CONFIG_APUS),y)
-obj-$(CONFIG_PCI)		+= apus_pci.o
-endif
 obj-$(CONFIG_PPC_PREP)		+= prep_pci.o prep_setup.o
 obj-$(CONFIG_PREP_RESIDUAL)	+= residual.o
 obj-$(CONFIG_PQ2ADS)		+= pq2ads.o
diff --git a/arch/ppc/platforms/apus_pci.c b/arch/ppc/platforms/apus_pci.c
deleted file mode 100644
index dc165f0..0000000
--- a/arch/ppc/platforms/apus_pci.c
+++ /dev/null
@@ -1,207 +0,0 @@
-/*
- * Copyright (C) Michel Dänzer <michdaen@iiic.ethz.ch>
- *
- * APUS PCI routines.
- *
- * Currently, only B/CVisionPPC cards (Permedia2) are supported.
- *
- * Thanks to Geert Uytterhoeven for the idea:
- * Read values from given config space(s) for the first devices, -1 otherwise
- *
- */
-
-#ifdef CONFIG_AMIGA
-
-#include <linux/kernel.h>
-#include <linux/pci.h>
-#include <linux/delay.h>
-#include <linux/string.h>
-#include <linux/init.h>
-
-#include <asm/io.h>
-#include <asm/pci-bridge.h>
-#include <asm/machdep.h>
-
-#include "apus_pci.h"
-
-
-/* These definitions are mostly adapted from pm2fb.c */
-
-#undef APUS_PCI_MASTER_DEBUG
-#ifdef APUS_PCI_MASTER_DEBUG
-#define DPRINTK(a,b...)	printk(KERN_DEBUG "apus_pci: %s: " a, __FUNCTION__ , ## b)
-#else
-#define DPRINTK(a,b...)
-#endif
-
-/*
- * The _DEFINITIVE_ memory mapping/unmapping functions.
- * This is due to the fact that they're changing soooo often...
- */
-#define DEFW()		wmb()
-#define DEFR()		rmb()
-#define DEFRW()		mb()
-
-#define DEVNO(d)	((d)>>3)
-#define FNNO(d)		((d)&7)
-
-
-extern unsigned long powerup_PCI_present;
-
-static struct pci_controller *apus_hose;
-
-
-void *pci_io_base(unsigned int bus)
-{
-	return 0;
-}
-
-
-int
-apus_pcibios_read_config(struct pci_bus *bus, int devfn, int offset,
-			 int len, u32 *val)
-{
-	int fnno = FNNO(devfn);
-	int devno = DEVNO(devfn);
-	volatile unsigned char *cfg_data;
-
-	if (bus->number > 0 || devno != 1) {
-		*val = ~0;
-		return PCIBIOS_DEVICE_NOT_FOUND;
-	}
-	/* base address + function offset + offset ^ endianness conversion */
-	/* XXX the fnno<<5 bit seems wacky  -- paulus */
-	cfg_data = apus_hose->cfg_data + (fnno<<5) + (offset ^ (len - 1));
-	switch (len) {
-	case 1:
-		*val = readb(cfg_data);
-		break;
-	case 2:
-		*val = readw(cfg_data);
-		break;
-	default:
-		*val = readl(cfg_data);
-		break;
-	}
-
-	DPRINTK("read b: 0x%x, d: 0x%x, f: 0x%x, o: 0x%x, l: %d, v: 0x%x\n",
-		bus->number, devfn>>3, devfn&7, offset, len, *val);
-	return PCIBIOS_SUCCESSFUL;
-}
-
-int
-apus_pcibios_write_config(struct pci_bus *bus, int devfn, int offset,
-			  int len, u32 *val)
-{
-	int fnno = FNNO(devfn);
-	int devno = DEVNO(devfn);
-	volatile unsigned char *cfg_data;
-
-	if (bus->number > 0 || devno != 1) {
-		return PCIBIOS_DEVICE_NOT_FOUND;
-	}
-	/* base address + function offset + offset ^ endianness conversion */
-	/* XXX the fnno<<5 bit seems wacky  -- paulus */
-	cfg_data = apus_hose->cfg_data + (fnno<<5) + (offset ^ (len - 1));
-	switch (len) {
-	case 1:
-		writeb(val, cfg_data); DEFW();
-		break;
-	case 2:
-		writew(val, cfg_data); DEFW();
-		break;
-	default:
-		writel(val, cfg_data); DEFW();
-		break;
-	}
-
-	DPRINTK("write b: 0x%x, d: 0x%x, f: 0x%x, o: 0x%x, l: %d, v: 0x%x\n",
-		bus->number, devfn>>3, devfn&7, offset, len, val);
-	return PCIBIOS_SUCCESSFUL;
-}
-
-static struct pci_ops apus_pci_ops = {
-	apus_pcibios_read_config,
-	apus_pcibios_write_config
-};
-
-static struct resource pci_mem = { "B/CVisionPPC PCI mem", CVPPC_FB_APERTURE_ONE, CVPPC_PCI_CONFIG, IORESOURCE_MEM };
-
-void __init
-apus_pcibios_fixup(void)
-{
-/*	struct pci_dev *dev = pci_find_slot(0, 1<<3);
-	unsigned int reg, val, offset;*/
-
-	/* FIXME: interrupt? */
-	/*dev->interrupt = xxx;*/
-
-        request_resource(&iomem_resource, &pci_mem);
-    	printk("%s: PCI mem resource requested\n", __FUNCTION__);
-}
-
-static void __init apus_pcibios_fixup_bus(struct pci_bus *bus)
-{
-        bus->resource[1] = &pci_mem;
-}
-
-
-/*
- * This is from pm2fb.c again
- *
- * Check if PCI (B/CVisionPPC) is available, initialize it and set up
- * the pcibios_* pointers
- */
-
-
-void __init
-apus_setup_pci_ptrs(void)
-{
-	if (!powerup_PCI_present) {
-		DPRINTK("no PCI bridge detected\n");
-		return;
-	}
-	DPRINTK("Phase5 B/CVisionPPC PCI bridge detected.\n");
-
-	apus_hose = pcibios_alloc_controller();
-	if (!apus_hose) {
-		printk("apus_pci: Can't allocate PCI controller structure\n");
-		return;
-	}
-
-	if (!(apus_hose->cfg_data = ioremap(CVPPC_PCI_CONFIG, 256))) {
-		printk("apus_pci: unable to map PCI config region\n");
-		return;
-	}
-
-	if (!(apus_hose->cfg_addr = ioremap(CSPPC_PCI_BRIDGE, 256))) {
-		printk("apus_pci: unable to map PCI bridge\n");
-		return;
-	}
-
-	writel(CSPPCF_BRIDGE_BIG_ENDIAN, apus_hose->cfg_addr + CSPPC_BRIDGE_ENDIAN);
-	DEFW();
-
-	writel(CVPPC_REGS_REGION,  apus_hose->cfg_data+ PCI_BASE_ADDRESS_0);
-	DEFW();
-	writel(CVPPC_FB_APERTURE_ONE, apus_hose->cfg_data + PCI_BASE_ADDRESS_1);
-	DEFW();
-	writel(CVPPC_FB_APERTURE_TWO, apus_hose->cfg_data + PCI_BASE_ADDRESS_2);
-	DEFW();
-	writel(CVPPC_ROM_ADDRESS, apus_hose->cfg_data + PCI_ROM_ADDRESS);
-	DEFW();
-
-	writel(0xef000000 | PCI_COMMAND_IO | PCI_COMMAND_MEMORY |
-		PCI_COMMAND_MASTER, apus_hose->cfg_data + PCI_COMMAND);
-	DEFW();
-
-	apus_hose->first_busno = 0;
-	apus_hose->last_busno = 0;
-	apus_hose->ops = &apus_pci_ops;
-	ppc_md.pcibios_fixup = apus_pcibios_fixup;
-	ppc_md.pcibios_fixup_bus = apus_pcibios_fixup_bus;
-
-	return;
-}
-
-#endif /* CONFIG_AMIGA */
diff --git a/arch/ppc/platforms/apus_pci.h b/arch/ppc/platforms/apus_pci.h
deleted file mode 100644
index f15974a..0000000
--- a/arch/ppc/platforms/apus_pci.h
+++ /dev/null
@@ -1,34 +0,0 @@
-/*
- * Phase5 CybervisionPPC (TVP4020) definitions for the Permedia2 framebuffer
- * driver.
- *
- * Copyright (c) 1998-1999 Ilario Nardinocchi (nardinoc@CS.UniBO.IT)
- * --------------------------------------------------------------------------
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file README.legal in the main directory of this archive
- * for more details.
- */
-
-#ifndef APUS_PCI_H
-#define APUS_PCI_H
-
-
-#define CSPPC_PCI_BRIDGE		0xfffe0000
-#define CSPPC_BRIDGE_ENDIAN		0x0000
-#define CSPPC_BRIDGE_INT		0x0010
-
-#define	CVPPC_PCI_CONFIG		0xfffc0000
-#define CVPPC_ROM_ADDRESS		0xe2000001
-#define CVPPC_REGS_REGION		0xef000000
-#define CVPPC_FB_APERTURE_ONE		0xe0000000
-#define CVPPC_FB_APERTURE_TWO		0xe1000000
-#define CVPPC_FB_SIZE			0x00800000
-
-/* CVPPC_BRIDGE_ENDIAN */
-#define CSPPCF_BRIDGE_BIG_ENDIAN	0x02
-
-/* CVPPC_BRIDGE_INT */
-#define CSPPCF_BRIDGE_ACTIVE_INT2	0x01
-
-
-#endif	/* APUS_PCI_H */
diff --git a/arch/ppc/platforms/apus_setup.c b/arch/ppc/platforms/apus_setup.c
deleted file mode 100644
index 063274d..0000000
--- a/arch/ppc/platforms/apus_setup.c
+++ /dev/null
@@ -1,798 +0,0 @@
-/*
- *  Copyright (C) 1998, 1999  Jesper Skov
- *
- *  Basically what is needed to replace functionality found in
- *  arch/m68k allowing Amiga drivers to work under APUS.
- *  Bits of code and/or ideas from arch/m68k and arch/ppc files.
- *
- * TODO:
- *  This file needs a *really* good cleanup. Restructure and optimize.
- *  Make sure it can be compiled for non-APUS configs. Begin to move
- *  Amiga specific stuff into mach/amiga.
- */
-
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/init.h>
-#include <linux/initrd.h>
-#include <linux/seq_file.h>
-
-/* Needs INITSERIAL call in head.S! */
-#undef APUS_DEBUG
-
-#include <asm/bootinfo.h>
-#include <asm/setup.h>
-#include <asm/amigahw.h>
-#include <asm/amigaints.h>
-#include <asm/amigappc.h>
-#include <asm/pgtable.h>
-#include <asm/dma.h>
-#include <asm/machdep.h>
-#include <asm/time.h>
-
-unsigned long m68k_machtype;
-char debug_device[6] = "";
-
-extern void amiga_init_IRQ(void);
-
-extern void apus_setup_pci_ptrs(void);
-
-void (*mach_sched_init) (void (*handler)(int, void *, struct pt_regs *)) __initdata = NULL;
-/* machine dependent irq functions */
-void (*mach_init_IRQ) (void) __initdata = NULL;
-void (*(*mach_default_handler)[]) (int, void *, struct pt_regs *) = NULL;
-void (*mach_get_model) (char *model) = NULL;
-int (*mach_get_hardware_list) (char *buffer) = NULL;
-int (*mach_get_irq_list) (struct seq_file *, void *) = NULL;
-void (*mach_process_int) (int, struct pt_regs *) = NULL;
-/* machine dependent timer functions */
-unsigned long (*mach_gettimeoffset) (void);
-void (*mach_gettod) (int*, int*, int*, int*, int*, int*);
-int (*mach_hwclk) (int, struct hwclk_time*) = NULL;
-int (*mach_set_clock_mmss) (unsigned long) = NULL;
-void (*mach_reset)( void );
-long mach_max_dma_address = 0x00ffffff; /* default set to the lower 16MB */
-#ifdef CONFIG_HEARTBEAT
-void (*mach_heartbeat) (int) = NULL;
-extern void apus_heartbeat (void);
-#endif
-
-extern unsigned long amiga_model;
-extern unsigned decrementer_count;/* count value for 1e6/HZ microseconds */
-extern unsigned count_period_num; /* 1 decrementer count equals */
-extern unsigned count_period_den; /* count_period_num / count_period_den us */
-
-int num_memory = 0;
-struct mem_info memory[NUM_MEMINFO];/* memory description */
-/* FIXME: Duplicate memory data to avoid conflicts with m68k shared code. */
-int m68k_realnum_memory = 0;
-struct mem_info m68k_memory[NUM_MEMINFO];/* memory description */
-
-struct mem_info ramdisk;
-
-extern void config_amiga(void);
-
-static int __60nsram = 0;
-
-/* for cpuinfo */
-static int __bus_speed = 0;
-static int __speed_test_failed = 0;
-
-/********************************************** COMPILE PROTECTION */
-/* Provide some stubs that links to Amiga specific functions.
- * This allows CONFIG_APUS to be removed from generic PPC files while
- * preventing link errors for other PPC targets.
- */
-unsigned long apus_get_rtc_time(void)
-{
-#ifdef CONFIG_APUS
-	extern unsigned long m68k_get_rtc_time(void);
-
-	return m68k_get_rtc_time ();
-#else
-	return 0;
-#endif
-}
-
-int apus_set_rtc_time(unsigned long nowtime)
-{
-#ifdef CONFIG_APUS
-	extern int m68k_set_rtc_time(unsigned long nowtime);
-
-	return m68k_set_rtc_time (nowtime);
-#else
-	return 0;
-#endif
-}
-
-/*********************************************************** SETUP */
-/* From arch/m68k/kernel/setup.c. */
-void __init apus_setup_arch(void)
-{
-#ifdef CONFIG_APUS
-	extern char cmd_line[];
-	int i;
-	char *p, *q;
-
-	/* Let m68k-shared code know it should do the Amiga thing. */
-	m68k_machtype = MACH_AMIGA;
-
-	/* Parse the command line for arch-specific options.
-	 * For the m68k, this is currently only "debug=xxx" to enable printing
-	 * certain kernel messages to some machine-specific device.  */
-	for( p = cmd_line; p && *p; ) {
-	    i = 0;
-	    if (!strncmp( p, "debug=", 6 )) {
-		    strlcpy( debug_device, p+6, sizeof(debug_device) );
-		    if ((q = strchr( debug_device, ' ' ))) *q = 0;
-		    i = 1;
-	    } else if (!strncmp( p, "60nsram", 7 )) {
-		    APUS_WRITE (APUS_REG_WAITSTATE,
-				REGWAITSTATE_SETRESET
-				|REGWAITSTATE_PPCR
-				|REGWAITSTATE_PPCW);
-		    __60nsram = 1;
-		    i = 1;
-	    }
-
-	    if (i) {
-		/* option processed, delete it */
-		if ((q = strchr( p, ' ' )))
-		    strcpy( p, q+1 );
-		else
-		    *p = 0;
-	    } else {
-		if ((p = strchr( p, ' ' ))) ++p;
-	    }
-	}
-
-	config_amiga();
-
-#if 0 /* Enable for logging - also include logging.o in Makefile rule */
-	{
-#define LOG_SIZE 4096
-		void* base;
-
-		/* Throw away some memory - the P5 firmare stomps on top
-		 * of CHIP memory during bootup.
-		 */
-		amiga_chip_alloc(0x1000);
-
-		base = amiga_chip_alloc(LOG_SIZE+sizeof(klog_data_t));
-		LOG_INIT(base, base+sizeof(klog_data_t), LOG_SIZE);
-	}
-#endif
-#endif
-}
-
-int
-apus_show_cpuinfo(struct seq_file *m)
-{
-	extern int __map_without_bats;
-	extern unsigned long powerup_PCI_present;
-
-	seq_printf(m, "machine\t\t: Amiga\n");
-	seq_printf(m, "bus speed\t: %d%s", __bus_speed,
-		   (__speed_test_failed) ? " [failed]\n" : "\n");
-	seq_printf(m, "using BATs\t: %s\n",
-		   (__map_without_bats) ? "No" : "Yes");
-	seq_printf(m, "ram speed\t: %dns\n", (__60nsram) ? 60 : 70);
-	seq_printf(m, "PCI bridge\t: %s\n",
-		   (powerup_PCI_present) ? "Yes" : "No");
-	return 0;
-}
-
-static void get_current_tb(unsigned long long *time)
-{
-	__asm __volatile ("1:mftbu 4      \n\t"
-			  "  mftb  5      \n\t"
-			  "  mftbu 6      \n\t"
-			  "  cmpw  4,6    \n\t"
-			  "  bne   1b     \n\t"
-			  "  stw   4,0(%0)\n\t"
-			  "  stw   5,4(%0)\n\t"
-			  :
-			  : "r" (time)
-			  : "r4", "r5", "r6");
-}
-
-
-void apus_calibrate_decr(void)
-{
-#ifdef CONFIG_APUS
-	unsigned long freq;
-
-	/* This algorithm for determining the bus speed was
-           contributed by Ralph Schmidt. */
-	unsigned long long start, stop;
-	int bus_speed;
-	int speed_test_failed = 0;
-
-	{
-		unsigned long loop = amiga_eclock / 10;
-
-		get_current_tb (&start);
-		while (loop--) {
-			unsigned char tmp;
-
-			tmp = ciaa.pra;
-		}
-		get_current_tb (&stop);
-	}
-
-	bus_speed = (((unsigned long)(stop-start))*10*4) / 1000000;
-	if (AMI_1200 == amiga_model)
-		bus_speed /= 2;
-
-	if ((bus_speed >= 47) && (bus_speed < 53)) {
-		bus_speed = 50;
-		freq = 12500000;
-	} else if ((bus_speed >= 57) && (bus_speed < 63)) {
-		bus_speed = 60;
-		freq = 15000000;
-	} else if ((bus_speed >= 63) && (bus_speed < 69)) {
-		bus_speed = 67;
-		freq = 16666667;
-	} else {
-		printk ("APUS: Unable to determine bus speed (%d). "
-			"Defaulting to 50MHz", bus_speed);
-		bus_speed = 50;
-		freq = 12500000;
-		speed_test_failed = 1;
-	}
-
-	/* Ease diagnostics... */
-	{
-		extern int __map_without_bats;
-		extern unsigned long powerup_PCI_present;
-
-		printk ("APUS: BATs=%d, BUS=%dMHz",
-			(__map_without_bats) ? 0 : 1,
-			bus_speed);
-		if (speed_test_failed)
-			printk ("[FAILED - please report]");
-
-		printk (", RAM=%dns, PCI bridge=%d\n",
-			(__60nsram) ? 60 : 70,
-			(powerup_PCI_present) ? 1 : 0);
-
-		/* print a bit more if asked politely... */
-		if (!(ciaa.pra & 0x40)){
-			extern unsigned int bat_addrs[4][3];
-			int b;
-			for (b = 0; b < 4; ++b) {
-				printk ("APUS: BAT%d ", b);
-				printk ("%08x-%08x -> %08x\n",
-					bat_addrs[b][0],
-					bat_addrs[b][1],
-					bat_addrs[b][2]);
-			}
-		}
-
-	}
-
-        printk("time_init: decrementer frequency = %lu.%.6lu MHz\n",
-	       freq/1000000, freq%1000000);
-	tb_ticks_per_jiffy = freq / HZ;
-	tb_to_us = mulhwu_scale_factor(freq, 1000000);
-
-	__bus_speed = bus_speed;
-	__speed_test_failed = speed_test_failed;
-#endif
-}
-
-void arch_gettod(int *year, int *mon, int *day, int *hour,
-		 int *min, int *sec)
-{
-#ifdef CONFIG_APUS
-	if (mach_gettod)
-		mach_gettod(year, mon, day, hour, min, sec);
-	else
-		*year = *mon = *day = *hour = *min = *sec = 0;
-#endif
-}
-
-/* for "kbd-reset" cmdline param */
-__init
-void kbd_reset_setup(char *str, int *ints)
-{
-}
-
-/*********************************************************** MEMORY */
-#define KMAP_MAX 32
-unsigned long kmap_chunks[KMAP_MAX*3];
-int kmap_chunk_count = 0;
-
-/* From pgtable.h */
-static __inline__ pte_t *my_find_pte(struct mm_struct *mm,unsigned long va)
-{
-	pgd_t *dir = 0;
-	pmd_t *pmd = 0;
-	pte_t *pte = 0;
-
-	va &= PAGE_MASK;
-
-	dir = pgd_offset( mm, va );
-	if (dir)
-	{
-		pmd = pmd_offset(dir, va & PAGE_MASK);
-		if (pmd && pmd_present(*pmd))
-		{
-			pte = pte_offset(pmd, va);
-		}
-	}
-	return pte;
-}
-
-
-/* Again simulating an m68k/mm/kmap.c function. */
-void kernel_set_cachemode( unsigned long address, unsigned long size,
-			   unsigned int cmode )
-{
-	unsigned long mask, flags;
-
-	switch (cmode)
-	{
-	case IOMAP_FULL_CACHING:
-		mask = ~(_PAGE_NO_CACHE | _PAGE_GUARDED);
-		flags = 0;
-		break;
-	case IOMAP_NOCACHE_SER:
-		mask = ~0;
-		flags = (_PAGE_NO_CACHE | _PAGE_GUARDED);
-		break;
-	default:
-		panic ("kernel_set_cachemode() doesn't support mode %d\n",
-		       cmode);
-		break;
-	}
-
-	size /= PAGE_SIZE;
-	address &= PAGE_MASK;
-	while (size--)
-	{
-		pte_t *pte;
-
-		pte = my_find_pte(&init_mm, address);
-		if ( !pte )
-		{
-			printk("pte NULL in kernel_set_cachemode()\n");
-			return;
-		}
-
-                pte_val (*pte) &= mask;
-                pte_val (*pte) |= flags;
-                flush_tlb_page(find_vma(&init_mm,address),address);
-
-		address += PAGE_SIZE;
-	}
-}
-
-unsigned long mm_ptov (unsigned long paddr)
-{
-	unsigned long ret;
-	if (paddr < 16*1024*1024)
-		ret = ZTWO_VADDR(paddr);
-	else {
-		int i;
-
-		for (i = 0; i < kmap_chunk_count;){
-			unsigned long phys = kmap_chunks[i++];
-			unsigned long size = kmap_chunks[i++];
-			unsigned long virt = kmap_chunks[i++];
-			if (paddr >= phys
-			    && paddr < (phys + size)){
-				ret = virt + paddr - phys;
-				goto exit;
-			}
-		}
-
-		ret = (unsigned long) __va(paddr);
-	}
-exit:
-#ifdef DEBUGPV
-	printk ("PTOV(%lx)=%lx\n", paddr, ret);
-#endif
-	return ret;
-}
-
-int mm_end_of_chunk (unsigned long addr, int len)
-{
-	if (memory[0].addr + memory[0].size == addr + len)
-		return 1;
-	return 0;
-}
-
-/*********************************************************** CACHE */
-
-#define L1_CACHE_BYTES 32
-#define MAX_CACHE_SIZE 8192
-void cache_push(__u32 addr, int length)
-{
-	addr = mm_ptov(addr);
-
-	if (MAX_CACHE_SIZE < length)
-		length = MAX_CACHE_SIZE;
-
-	while(length > 0){
-		__asm ("dcbf 0,%0\n\t"
-		       : : "r" (addr));
-		addr += L1_CACHE_BYTES;
-		length -= L1_CACHE_BYTES;
-	}
-	/* Also flush trailing block */
-	__asm ("dcbf 0,%0\n\t"
-	       "sync \n\t"
-	       : : "r" (addr));
-}
-
-void cache_clear(__u32 addr, int length)
-{
-	if (MAX_CACHE_SIZE < length)
-		length = MAX_CACHE_SIZE;
-
-	addr = mm_ptov(addr);
-
-	__asm ("dcbf 0,%0\n\t"
-	       "sync \n\t"
-	       "icbi 0,%0 \n\t"
-	       "isync \n\t"
-	       : : "r" (addr));
-
-	addr += L1_CACHE_BYTES;
-	length -= L1_CACHE_BYTES;
-
-	while(length > 0){
-		__asm ("dcbf 0,%0\n\t"
-		       "sync \n\t"
-		       "icbi 0,%0 \n\t"
-		       "isync \n\t"
-		       : : "r" (addr));
-		addr += L1_CACHE_BYTES;
-		length -= L1_CACHE_BYTES;
-	}
-
-	__asm ("dcbf 0,%0\n\t"
-	       "sync \n\t"
-	       "icbi 0,%0 \n\t"
-	       "isync \n\t"
-	       : : "r" (addr));
-}
-
-/****************************************************** from setup.c */
-void
-apus_restart(char *cmd)
-{
-	local_irq_disable();
-
-	APUS_WRITE(APUS_REG_LOCK,
-		   REGLOCK_BLACKMAGICK1|REGLOCK_BLACKMAGICK2);
-	APUS_WRITE(APUS_REG_LOCK,
-		   REGLOCK_BLACKMAGICK1|REGLOCK_BLACKMAGICK3);
-	APUS_WRITE(APUS_REG_LOCK,
-		   REGLOCK_BLACKMAGICK2|REGLOCK_BLACKMAGICK3);
-	APUS_WRITE(APUS_REG_SHADOW, REGSHADOW_SELFRESET);
-	APUS_WRITE(APUS_REG_RESET, REGRESET_AMIGARESET);
-	for(;;);
-}
-
-void
-apus_power_off(void)
-{
-	for (;;);
-}
-
-void
-apus_halt(void)
-{
-   apus_restart(NULL);
-}
-
-/****************************************************** IRQ stuff */
-
-static unsigned char last_ipl[8];
-
-int apus_get_irq(void)
-{
-	unsigned char ipl_emu, mask;
-	unsigned int level;
-
-	APUS_READ(APUS_IPL_EMU, ipl_emu);
-	level = (ipl_emu >> 3) & IPLEMU_IPLMASK;
-	mask = IPLEMU_SETRESET|IPLEMU_DISABLEINT|level;
-	level ^= 7;
-
-	/* Save previous IPL value */
-	if (last_ipl[level])
-		return -2;
-	last_ipl[level] = ipl_emu;
-
-	/* Set to current IPL value */
-	APUS_WRITE(APUS_IPL_EMU, mask);
-	APUS_WRITE(APUS_IPL_EMU, IPLEMU_DISABLEINT|level);
-
-
-#ifdef __INTERRUPT_DEBUG
-	printk("<%d:%d>", level, ~ipl_emu & IPLEMU_IPLMASK);
-#endif
-	return level + IRQ_AMIGA_AUTO;
-}
-
-void apus_end_irq(unsigned int irq)
-{
-	unsigned char ipl_emu;
-	unsigned int level = irq - IRQ_AMIGA_AUTO;
-#ifdef __INTERRUPT_DEBUG
-	printk("{%d}", ~last_ipl[level] & IPLEMU_IPLMASK);
-#endif
-	/* Restore IPL to the previous value */
-	ipl_emu = last_ipl[level] & IPLEMU_IPLMASK;
-	APUS_WRITE(APUS_IPL_EMU, IPLEMU_SETRESET|IPLEMU_DISABLEINT|ipl_emu);
-	last_ipl[level] = 0;
-	ipl_emu ^= 7;
-	APUS_WRITE(APUS_IPL_EMU, IPLEMU_DISABLEINT|ipl_emu);
-}
-
-/****************************************************** debugging */
-
-/* some serial hardware definitions */
-#define SDR_OVRUN   (1<<15)
-#define SDR_RBF     (1<<14)
-#define SDR_TBE     (1<<13)
-#define SDR_TSRE    (1<<12)
-
-#define AC_SETCLR   (1<<15)
-#define AC_UARTBRK  (1<<11)
-
-#define SER_DTR     (1<<7)
-#define SER_RTS     (1<<6)
-#define SER_DCD     (1<<5)
-#define SER_CTS     (1<<4)
-#define SER_DSR     (1<<3)
-
-static __inline__ void ser_RTSon(void)
-{
-    ciab.pra &= ~SER_RTS; /* active low */
-}
-
-int __debug_ser_out( unsigned char c )
-{
-	amiga_custom.serdat = c | 0x100;
-	mb();
-	while (!(amiga_custom.serdatr & 0x2000))
-		barrier();
-	return 1;
-}
-
-unsigned char __debug_ser_in( void )
-{
-	unsigned char c;
-
-	/* XXX: is that ok?? derived from amiga_ser.c... */
-	while( !(amiga_custom.intreqr & IF_RBF) )
-		barrier();
-	c = amiga_custom.serdatr;
-	/* clear the interrupt, so that another character can be read */
-	amiga_custom.intreq = IF_RBF;
-	return c;
-}
-
-int __debug_serinit( void )
-{
-	unsigned long flags;
-
-	local_irq_save(flags);
-
-	/* turn off Rx and Tx interrupts */
-	amiga_custom.intena = IF_RBF | IF_TBE;
-
-	/* clear any pending interrupt */
-	amiga_custom.intreq = IF_RBF | IF_TBE;
-
-	local_irq_restore(flags);
-
-	/*
-	 * set the appropriate directions for the modem control flags,
-	 * and clear RTS and DTR
-	 */
-	ciab.ddra |= (SER_DTR | SER_RTS);   /* outputs */
-	ciab.ddra &= ~(SER_DCD | SER_CTS | SER_DSR);  /* inputs */
-
-#ifdef CONFIG_KGDB
-	/* turn Rx interrupts on for GDB */
-	amiga_custom.intena = IF_SETCLR | IF_RBF;
-	ser_RTSon();
-#endif
-
-	return 0;
-}
-
-void __debug_print_hex(unsigned long x)
-{
-	int i;
-	char hexchars[] = "0123456789ABCDEF";
-
-	for (i = 0; i < 8; i++) {
-		__debug_ser_out(hexchars[(x >> 28) & 15]);
-		x <<= 4;
-	}
-	__debug_ser_out('\n');
-	__debug_ser_out('\r');
-}
-
-void __debug_print_string(char* s)
-{
-	unsigned char c;
-	while((c = *s++))
-		__debug_ser_out(c);
-	__debug_ser_out('\n');
-	__debug_ser_out('\r');
-}
-
-static void apus_progress(char *s, unsigned short value)
-{
-	__debug_print_string(s);
-}
-
-/****************************************************** init */
-
-/* The number of spurious interrupts */
-volatile unsigned int num_spurious;
-
-extern struct irqaction amiga_sys_irqaction[AUTO_IRQS];
-
-
-extern void amiga_enable_irq(unsigned int irq);
-extern void amiga_disable_irq(unsigned int irq);
-
-struct hw_interrupt_type amiga_sys_irqctrl = {
-	.typename = "Amiga IPL",
-	.end = apus_end_irq,
-};
-
-struct hw_interrupt_type amiga_irqctrl = {
-	.typename = "Amiga    ",
-	.enable = amiga_enable_irq,
-	.disable = amiga_disable_irq,
-};
-
-#define HARDWARE_MAPPED_SIZE (512*1024)
-unsigned long __init apus_find_end_of_memory(void)
-{
-	int shadow = 0;
-	unsigned long total;
-
-	/* The memory size reported by ADOS excludes the 512KB
-	   reserved for PPC exception registers and possibly 512KB
-	   containing a shadow of the ADOS ROM. */
-	{
-		unsigned long size = memory[0].size;
-
-		/* If 2MB aligned, size was probably user
-                   specified. We can't tell anything about shadowing
-                   in this case so skip shadow assignment. */
-		if (0 != (size & 0x1fffff)){
-			/* Align to 512KB to ensure correct handling
-			   of both memfile and system specified
-			   sizes. */
-			size = ((size+0x0007ffff) & 0xfff80000);
-			/* If memory is 1MB aligned, assume
-                           shadowing. */
-			shadow = !(size & 0x80000);
-		}
-
-		/* Add the chunk that ADOS does not see. by aligning
-                   the size to the nearest 2MB limit upwards.  */
-		memory[0].size = ((size+0x001fffff) & 0xffe00000);
-	}
-
-	ppc_memstart = memory[0].addr;
-	ppc_memoffset = PAGE_OFFSET - PPC_MEMSTART;
-	total = memory[0].size;
-
-	/* Remove the memory chunks that are controlled by special
-           Phase5 hardware. */
-
-	/* Remove the upper 512KB if it contains a shadow of
-	   the ADOS ROM. FIXME: It might be possible to
-	   disable this shadow HW. Check the booter
-	   (ppc_boot.c) */
-	if (shadow)
-		total -= HARDWARE_MAPPED_SIZE;
-
-	/* Remove the upper 512KB where the PPC exception
-	   vectors are mapped. */
-	total -= HARDWARE_MAPPED_SIZE;
-
-	/* Linux/APUS only handles one block of memory -- the one on
-	   the PowerUP board. Other system memory is horrible slow in
-	   comparison. The user can use other memory for swapping
-	   using the z2ram device. */
-	return total;
-}
-
-static void __init
-apus_map_io(void)
-{
-	/* Map PPC exception vectors. */
-	io_block_mapping(0xfff00000, 0xfff00000, 0x00020000, _PAGE_KERNEL);
-	/* Map chip and ZorroII memory */
-	io_block_mapping(zTwoBase,   0x00000000, 0x01000000, _PAGE_IO);
-}
-
-__init
-void apus_init_IRQ(void)
-{
-	struct irqaction *action;
-	int i;
-
-#ifdef CONFIG_PCI
-        apus_setup_pci_ptrs();
-#endif
-
-	for ( i = 0 ; i < AMI_IRQS; i++ ) {
-		irq_desc[i].status = IRQ_LEVEL;
-		if (i < IRQ_AMIGA_AUTO) {
-			irq_desc[i].chip = &amiga_irqctrl;
-		} else {
-			irq_desc[i].chip = &amiga_sys_irqctrl;
-			action = &amiga_sys_irqaction[i-IRQ_AMIGA_AUTO];
-			if (action->name)
-				setup_irq(i, action);
-		}
-	}
-
-	amiga_init_IRQ();
-
-}
-
-__init
-void platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
-		   unsigned long r6, unsigned long r7)
-{
-	extern int parse_bootinfo(const struct bi_record *);
-	extern char _end[];
-
-	/* Parse bootinfo. The bootinfo is located right after
-           the kernel bss */
-	parse_bootinfo((const struct bi_record *)&_end);
-#ifdef CONFIG_BLK_DEV_INITRD
-	/* Take care of initrd if we have one. Use data from
-	   bootinfo to avoid the need to initialize PPC
-	   registers when kernel is booted via a PPC reset. */
-	if ( ramdisk.addr ) {
-		initrd_start = (unsigned long) __va(ramdisk.addr);
-		initrd_end = (unsigned long)
-			__va(ramdisk.size + ramdisk.addr);
-	}
-#endif /* CONFIG_BLK_DEV_INITRD */
-
-	ISA_DMA_THRESHOLD = 0x00ffffff;
-
-	ppc_md.setup_arch     = apus_setup_arch;
-	ppc_md.show_cpuinfo   = apus_show_cpuinfo;
-	ppc_md.init_IRQ       = apus_init_IRQ;
-	ppc_md.get_irq        = apus_get_irq;
-
-#ifdef CONFIG_HEARTBEAT
-	ppc_md.heartbeat      = apus_heartbeat;
-	ppc_md.heartbeat_count = 1;
-#endif
-#ifdef APUS_DEBUG
-	__debug_serinit();
-	ppc_md.progress       = apus_progress;
-#endif
-	ppc_md.init           = NULL;
-
-	ppc_md.restart        = apus_restart;
-	ppc_md.power_off      = apus_power_off;
-	ppc_md.halt           = apus_halt;
-
-	ppc_md.time_init      = NULL;
-	ppc_md.set_rtc_time   = apus_set_rtc_time;
-	ppc_md.get_rtc_time   = apus_get_rtc_time;
-	ppc_md.calibrate_decr = apus_calibrate_decr;
-
-	ppc_md.find_end_of_memory = apus_find_end_of_memory;
-	ppc_md.setup_io_mappings = apus_map_io;
-}