Re: [RFC: 2.6 patch] m68knommu: remove the broken COMEMPCI code

[Greg Ungerer <gerg@snapgear.com>]

Hi Adrian,

Adrian Bunk wrote:
> On Mon, Aug 25, 2008 at 04:16:12PM +1000, Greg Ungerer wrote:
>> Hi Adrian,
>>
>> Adrian Bunk wrote:
>>> There exists blackfin hardware with PCI support, but the support
>>> currently in the kernel fails to build starting with:
>>>
>>> <--  snip  -->
>>>
>>> ...
>>>   CC      init/main.o
>>> In file included from dma-mapping.h:5,
>>>                  from dma-mapping.h:52,
>>>                  from dmaengine.h:29,
>>>                  from skbuff.h:29,
>>>                  from netlink.h:155,
>>>                  from genetlink.h:4,
>>>                  from genetlink.h:4,
>>>                  from taskstats_kern.h:12,
>>>                  from main.c:46:
>>> dma-mapping.h: In function 'dma_supported': ma-mapping.h:24: error: 
>>> implicit declaration of function 'pci_dma_supported'
>>> ...
>>> make[2]: *** [init/main.o] Error 1
>> I think we should just remove the underlying comempci access
>> code which is the only user of this (arch/m68knommu/kernel/comempci.c).
>> Nobody has used it in a very long time. And the hardware itself is
>> old, and completely brain-damaged by design.
> 
> A patch for removing the comempci code is below.
> 
> It's a bit suspicious that asm/elia.h is now removed since comempci.c 
> was the only user. What's the sttus of the eLIA platform?

Only ever a handful where made, and that was in 1999.
I doubt anyone could ever use the PCI interface on it
in any useful way.


> But COMEMPCI fails with a different error - this init/main.o build error 
> is present for CONFIG_PCI=y, CONFIG_COMEMPCI=n, so the dependency of PCI 
> on BROKEN is still required (unless it gets fixed).

Unless I am mistaken there is now no need for the CONFIG_PCI option
if selecting m68knommu. The only m68knommu platforms that had PCI
as far as I know where those that use the comempci part.

The patch looks ok to me too (acked below).

Regards
Greg



> cu
> Adrian
> 
> 
> <--  snip  -->
> 
> 
> The COMEMPCI code didn't even compile.
> 
> Greg Ungerer said:
> I think we should just remove the underlying comempci access
> code which is the only user of this (arch/m68knommu/kernel/comempci.c).
> Nobody has used it in a very long time. And the hardware itself is
> old, and completely brain-damaged by design.
> 
> Signed-off-by: Adrian Bunk <bunk@kernel.org>

Acked-by: Greg Ungerer <gerg@uclinux.org>


> ---
> 
>  arch/m68knommu/Kconfig              |    4 
>  arch/m68knommu/include/asm/anchor.h |  112 ---
>  arch/m68knommu/include/asm/elia.h   |   41 -
>  arch/m68knommu/include/asm/mcfpci.h |  119 ---
>  arch/m68knommu/include/asm/pci.h    |   23 
>  arch/m68knommu/kernel/Makefile      |    1 
>  arch/m68knommu/kernel/comempci.c    |  980 ----------------------------
>  7 files changed, 1280 deletions(-)
> 
> 6c2fed7cd1aad31f7c1518cfcb0d7d8f438ba8a4 
> diff --git a/arch/m68knommu/Kconfig b/arch/m68knommu/Kconfig
> index 77a5bdf..15ffd55 100644
> --- a/arch/m68knommu/Kconfig
> +++ b/arch/m68knommu/Kconfig
> @@ -706,10 +706,6 @@ config PCI
>  	help
>  	  Support for PCI bus.
>  
> -config COMEMPCI
> -	bool "CO-MEM lite PCI controller support"
> -	depends on (M5307 || M5407)
> -
>  source "drivers/pci/Kconfig"
>  
>  source "drivers/pcmcia/Kconfig"
> diff --git a/arch/m68knommu/include/asm/anchor.h b/arch/m68knommu/include/asm/anchor.h
> deleted file mode 100644
> index 871c0d5..0000000
> --- a/arch/m68knommu/include/asm/anchor.h
> +++ /dev/null
> @@ -1,112 +0,0 @@
> -/****************************************************************************/
> -
> -/*
> - *	anchor.h -- Anchor CO-MEM Lite PCI host bridge part.
> - *
> - *	(C) Copyright 2000, Moreton Bay (www.moreton.com.au)
> - */
> -
> -/****************************************************************************/
> -#ifndef	anchor_h
> -#define	anchor_h
> -/****************************************************************************/
> -
> -/*
> - *	Define basic addressing info.
> - */
> -#if defined(CONFIG_M5407C3)
> -#define	COMEM_BASE	0xFFFF0000	/* Base of CO-MEM address space */
> -#define	COMEM_IRQ	25		/* IRQ of anchor part */
> -#else
> -#define	COMEM_BASE	0x80000000	/* Base of CO-MEM address space */
> -#define	COMEM_IRQ	25		/* IRQ of anchor part */
> -#endif
> -
> -/****************************************************************************/
> -
> -/*
> - *	4-byte registers of CO-MEM, so adjust register addresses for
> - *	easy access. Handy macro for word access too.
> - */
> -#define	LREG(a)		((a) >> 2)
> -#define	WREG(a)		((a) >> 1)
> -
> -
> -/*
> - *	Define base addresses within CO-MEM Lite register address space.
> - */
> -#define	COMEM_I2O	0x0000		/* I2O registers */
> -#define	COMEM_OPREGS	0x0400		/* Operation registers */
> -#define	COMEM_PCIBUS	0x2000		/* Direct access to PCI bus */
> -#define	COMEM_SHMEM	0x4000		/* Shared memory region */
> -
> -#define	COMEM_SHMEMSIZE	0x4000		/* Size of shared memory */
> -
> -
> -/*
> - *	Define CO-MEM Registers.
> - */
> -#define	COMEM_I2OHISR	0x0030		/* I2O host interrupt status */
> -#define	COMEM_I2OHIMR	0x0034		/* I2O host interrupt mask */
> -#define	COMEM_I2OLISR	0x0038		/* I2O local interrupt status */
> -#define	COMEM_I2OLIMR	0x003c		/* I2O local interrupt mask */
> -#define	COMEM_IBFPFIFO	0x0040		/* I2O inbound free/post FIFO */
> -#define	COMEM_OBPFFIFO	0x0044		/* I2O outbound post/free FIFO */
> -#define	COMEM_IBPFFIFO	0x0048		/* I2O inbound post/free FIFO */
> -#define	COMEM_OBFPFIFO	0x004c		/* I2O outbound free/post FIFO */
> -
> -#define	COMEM_DAHBASE	0x0460		/* Direct access base address */
> -
> -#define	COMEM_NVCMD	0x04a0		/* I2C serial command */
> -#define	COMEM_NVREAD	0x04a4		/* I2C serial read */
> -#define	COMEM_NVSTAT	0x04a8		/* I2C status */
> -
> -#define	COMEM_DMALBASE	0x04b0		/* DMA local base address */
> -#define	COMEM_DMAHBASE	0x04b4		/* DMA host base address */
> -#define	COMEM_DMASIZE	0x04b8		/* DMA size */
> -#define	COMEM_DMACTL	0x04bc		/* DMA control */
> -
> -#define	COMEM_HCTL	0x04e0		/* Host control */
> -#define	COMEM_HINT	0x04e4		/* Host interrupt control/status */
> -#define	COMEM_HLDATA	0x04e8		/* Host to local data mailbox */
> -#define	COMEM_LINT	0x04f4		/* Local interrupt contole status */
> -#define	COMEM_LHDATA	0x04f8		/* Local to host data mailbox */
> -
> -#define	COMEM_LBUSCFG	0x04fc		/* Local bus configuration */
> -
> -
> -/*
> - *	Commands and flags for use with Direct Access Register.
> - */
> -#define	COMEM_DA_IACK	0x00000000	/* Interrupt acknowledge (read) */
> -#define	COMEM_DA_SPCL	0x00000010	/* Special cycle (write) */
> -#define	COMEM_DA_MEMRD	0x00000004	/* Memory read cycle */
> -#define	COMEM_DA_MEMWR	0x00000004	/* Memory write cycle */
> -#define	COMEM_DA_IORD	0x00000002	/* I/O read cycle */
> -#define	COMEM_DA_IOWR	0x00000002	/* I/O write cycle */
> -#define	COMEM_DA_CFGRD	0x00000006	/* Configuration read cycle */
> -#define	COMEM_DA_CFGWR	0x00000006	/* Configuration write cycle */
> -
> -#define	COMEM_DA_ADDR(a)	((a) & 0xffffe000)
> -
> -#define	COMEM_DA_OFFSET(a)	((a) & 0x00001fff)
> -
> -
> -/*
> - *	The PCI bus will be limited in what slots will actually be used.
> - *	Define valid device numbers for different boards.
> - */
> -#if defined(CONFIG_M5407C3)
> -#define	COMEM_MINDEV	14		/* Minimum valid DEVICE */
> -#define	COMEM_MAXDEV	14		/* Maximum valid DEVICE */
> -#define	COMEM_BRIDGEDEV	15		/* Slot bridge is in */
> -#else
> -#define	COMEM_MINDEV	0		/* Minimum valid DEVICE */
> -#define	COMEM_MAXDEV	3		/* Maximum valid DEVICE */
> -#endif
> -
> -#define	COMEM_MAXPCI	(COMEM_MAXDEV+1)	/* Maximum PCI devices */
> -
> -
> -/****************************************************************************/
> -#endif	/* anchor_h */
> diff --git a/arch/m68knommu/include/asm/elia.h b/arch/m68knommu/include/asm/elia.h
> deleted file mode 100644
> index e037d4e..0000000
> --- a/arch/m68knommu/include/asm/elia.h
> +++ /dev/null
> @@ -1,41 +0,0 @@
> -/****************************************************************************/
> -
> -/*
> - *	elia.h -- Lineo (formerly Moreton Bay) eLIA platform support.
> - *
> - *	(C) Copyright 1999-2000, Moreton Bay (www.moreton.com.au)
> - *	(C) Copyright 1999-2000, Lineo (www.lineo.com)
> - */
> -
> -/****************************************************************************/
> -#ifndef	elia_h
> -#define	elia_h
> -/****************************************************************************/
> -
> -#include <asm/coldfire.h>
> -
> -#ifdef CONFIG_eLIA
> -
> -/*
> - *	The serial port DTR and DCD lines are also on the Parallel I/O
> - *	as well, so define those too.
> - */
> -
> -#define	eLIA_DCD1		0x0001
> -#define	eLIA_DCD0		0x0002
> -#define	eLIA_DTR1		0x0004
> -#define	eLIA_DTR0		0x0008
> -
> -#define	eLIA_PCIRESET		0x0020
> -
> -/*
> - *	Kernel macros to set and unset the LEDs.
> - */
> -#ifndef __ASSEMBLY__
> -extern unsigned short	ppdata;
> -#endif /* __ASSEMBLY__ */
> -
> -#endif	/* CONFIG_eLIA */
> -
> -/****************************************************************************/
> -#endif	/* elia_h */
> diff --git a/arch/m68knommu/include/asm/mcfpci.h b/arch/m68knommu/include/asm/mcfpci.h
> deleted file mode 100644
> index f1507dd..0000000
> --- a/arch/m68knommu/include/asm/mcfpci.h
> +++ /dev/null
> @@ -1,119 +0,0 @@
> -/****************************************************************************/
> -
> -/*
> - *	mcfpci.h -- PCI bridge on ColdFire eval boards.
> - *
> - *	(C) Copyright 2000, Greg Ungerer (gerg@snapgear.com)
> - *	(C) Copyright 2000, Lineo Inc. (www.lineo.com)
> - */
> -
> -/****************************************************************************/
> -#ifndef	mcfpci_h
> -#define	mcfpci_h
> -/****************************************************************************/
> -
> -
> -#ifdef CONFIG_PCI
> -
> -/*
> - *	Address regions in the PCI address space are not mapped into the
> - *	normal memory space of the ColdFire. They must be accessed via
> - *	handler routines. This is easy for I/O space (inb/outb/etc) but
> - *	needs some code changes to support ordinary memory. Interrupts
> - *	also need to be vectored through the PCI handler first, then it
> - *	will call the actual driver sub-handlers.
> - */
> -
> -/*
> - *	Un-define all the standard I/O access routines.
> - */
> -#undef	inb
> -#undef	inw
> -#undef	inl
> -#undef	inb_p
> -#undef	inw_p
> -#undef	insb
> -#undef	insw
> -#undef	insl
> -#undef	outb
> -#undef	outw
> -#undef	outl
> -#undef	outb_p
> -#undef	outw_p
> -#undef	outsb
> -#undef	outsw
> -#undef	outsl
> -
> -#undef	request_irq
> -#undef	free_irq
> -
> -#undef	bus_to_virt
> -#undef	virt_to_bus
> -
> -
> -/*
> - *	Re-direct all I/O memory accesses functions to PCI specific ones.
> - */
> -#define	inb	pci_inb
> -#define	inw	pci_inw
> -#define	inl	pci_inl
> -#define	inb_p	pci_inb
> -#define	inw_p	pci_inw
> -#define	insb	pci_insb
> -#define	insw	pci_insw
> -#define	insl	pci_insl
> -
> -#define	outb	pci_outb
> -#define	outw	pci_outw
> -#define	outl	pci_outl
> -#define	outb_p	pci_outb
> -#define	outw_p	pci_outw
> -#define	outsb	pci_outsb
> -#define	outsw	pci_outsw
> -#define	outsl	pci_outsl
> -
> -#define	request_irq	pci_request_irq
> -#define	free_irq	pci_free_irq
> -
> -#define	virt_to_bus	pci_virt_to_bus
> -#define	bus_to_virt	pci_bus_to_virt
> -
> -#define	CONFIG_COMEMPCI	1
> -
> -
> -/*
> - *	Prototypes of the real PCI functions (defined in bios32.c).
> - */
> -unsigned char	pci_inb(unsigned int addr);
> -unsigned short	pci_inw(unsigned int addr);
> -unsigned int	pci_inl(unsigned int addr);
> -void		pci_insb(void *addr, void *buf, int len);
> -void		pci_insw(void *addr, void *buf, int len);
> -void		pci_insl(void *addr, void *buf, int len);
> -
> -void		pci_outb(unsigned char val, unsigned int addr);
> -void		pci_outw(unsigned short val, unsigned int addr);
> -void		pci_outl(unsigned int val, unsigned int addr);
> -void		pci_outsb(void *addr, void *buf, int len);
> -void		pci_outsw(void *addr, void *buf, int len);
> -void		pci_outsl(void *addr, void *buf, int len);
> -
> -int		pci_request_irq(unsigned int irq,
> -			void (*handler)(int, void *, struct pt_regs *),
> -			unsigned long flags,
> -			const char *device,
> -			void *dev_id);
> -void		pci_free_irq(unsigned int irq, void *dev_id);
> -
> -void		*pci_bmalloc(int size);
> -void		pci_bmfree(void *bmp, int len);
> -void		pci_copytoshmem(unsigned long bmp, void *src, int size);
> -void		pci_copyfromshmem(void *dst, unsigned long bmp, int size);
> -unsigned long	pci_virt_to_bus(volatile void *address);
> -void		*pci_bus_to_virt(unsigned long address);
> -void		pci_bmcpyto(void *dst, void *src, int len);
> -void		pci_bmcpyfrom(void *dst, void *src, int len);
> -
> -#endif /* CONFIG_PCI */
> -/****************************************************************************/
> -#endif	/* mcfpci_h */
> diff --git a/arch/m68knommu/include/asm/pci.h b/arch/m68knommu/include/asm/pci.h
> index a13f3cc..8031d1d 100644
> --- a/arch/m68knommu/include/asm/pci.h
> +++ b/arch/m68knommu/include/asm/pci.h
> @@ -3,27 +3,4 @@
>  
>  #include <asm-m68k/pci.h>
>  
> -#ifdef CONFIG_COMEMPCI
> -/*
> - *	These are pretty much arbitary with the CoMEM implementation.
> - *	We have the whole address space to ourselves.
> - */
> -#define PCIBIOS_MIN_IO		0x100
> -#define PCIBIOS_MIN_MEM		0x00010000
> -
> -#define pcibios_scan_all_fns(a, b)	0
> -
> -/*
> - * Return whether the given PCI device DMA address mask can
> - * be supported properly.  For example, if your device can
> - * only drive the low 24-bits during PCI bus mastering, then
> - * you would pass 0x00ffffff as the mask to this function.
> - */
> -static inline int pci_dma_supported(struct pci_dev *hwdev, u64 mask)
> -{
> -	return 1;
> -}
> -
> -#endif /* CONFIG_COMEMPCI */
> -
>  #endif /* M68KNOMMU_PCI_H */
> diff --git a/arch/m68knommu/kernel/Makefile b/arch/m68knommu/kernel/Makefile
> index f0eab3d..37c3fc0 100644
> --- a/arch/m68knommu/kernel/Makefile
> +++ b/arch/m68knommu/kernel/Makefile
> @@ -8,4 +8,3 @@ obj-y += dma.o entry.o init_task.o irq.o m68k_ksyms.o process.o ptrace.o \
>  	 setup.o signal.o syscalltable.o sys_m68k.o time.o traps.o
>  
>  obj-$(CONFIG_MODULES)	+= module.o
> -obj-$(CONFIG_COMEMPCI)	+= comempci.o
> diff --git a/arch/m68knommu/kernel/comempci.c b/arch/m68knommu/kernel/comempci.c
> deleted file mode 100644
> index 0a68b5a..0000000
> --- a/arch/m68knommu/kernel/comempci.c
> +++ /dev/null
> @@ -1,980 +0,0 @@
> -/*****************************************************************************/
> -
> -/*
> - *	comemlite.c -- PCI access code for embedded CO-MEM Lite PCI controller.
> - *
> - *	(C) Copyright 1999-2003, Greg Ungerer (gerg@snapgear.com).
> - *	(C) Copyright 2000, Lineo (www.lineo.com)
> - */
> -
> -/*****************************************************************************/
> -
> -#include <linux/kernel.h>
> -#include <linux/types.h>
> -#include <linux/pci.h>
> -#include <linux/ptrace.h>
> -#include <linux/spinlock.h>
> -#include <linux/interrupt.h>
> -#include <linux/sched.h>
> -#include <asm/coldfire.h>
> -#include <asm/mcfsim.h>
> -#include <asm/irq.h>
> -#include <asm/anchor.h>
> -
> -#ifdef CONFIG_eLIA
> -#include <asm/elia.h>
> -#endif
> -
> -/*****************************************************************************/
> -
> -/*
> - *	Debug configuration defines. DEBUGRES sets debugging output for
> - *	the resource allocation phase. DEBUGPCI traces on pcibios_ function
> - *	calls, and DEBUGIO traces all accesses to devices on the PCI bus.
> - */
> -/*#define	DEBUGRES	1*/
> -/*#define	DEBUGPCI	1*/
> -/*#define	DEBUGIO		1*/
> -
> -/*****************************************************************************/
> -
> -/*
> - *	PCI markers for bus present and active slots.
> - */
> -int		pci_bus_is_present = 0;
> -unsigned long	pci_slotmask = 0;
> -
> -/*
> - *	We may or may not need to swap the bytes of PCI bus tranfers.
> - *	The endianess is re-roder automatically by the CO-MEM, but it
> - *	will get the wrong byte order for a pure data stream.
> - */
> -#define	pci_byteswap	0
> -
> -
> -/*
> - *	Resource tracking. The CO-MEM part creates a virtual address
> - *	space that all the PCI devices live in - it is not in any way
> - *	directly mapped into the ColdFire address space. So we can
> - *	really assign any resources we like to devices, as long as
> - *	they do not clash with other PCI devices.
> - */
> -unsigned int	pci_iobase = PCIBIOS_MIN_IO;	/* Arbitrary start address */
> -unsigned int	pci_membase = PCIBIOS_MIN_MEM;	/* Arbitrary start address */
> -
> -#define	PCI_MINIO	0x100			/* 256 byte minimum I/O */
> -#define	PCI_MINMEM	0x00010000		/* 64k minimum chunk */
> -
> -/*
> - *	The CO-MEM's shared memory segment is visible inside the PCI
> - *	memory address space. We need to keep track of the address that
> - *	this is mapped at, to setup the bus masters pointers.
> - */
> -unsigned int	pci_shmemaddr;
> -
> -/*****************************************************************************/
> -
> -void	pci_interrupt(int irq, void *id, struct pt_regs *fp);
> -
> -/*****************************************************************************/
> -
> -/*
> - *	Some platforms have custom ways of reseting the PCI bus.
> - */
> -
> -void pci_resetbus(void)
> -{
> -#ifdef CONFIG_eLIA
> -	int	i;
> -
> -#ifdef DEBUGPCI
> -	printk(KERN_DEBUG "pci_resetbus()\n");
> -#endif
> -
> -	*((volatile unsigned short *) (MCF_MBAR+MCFSIM_PADDR)) |= eLIA_PCIRESET;
> -	for (i = 0; (i < 1000); i++) {
> -		*((volatile unsigned short *) (MCF_MBAR + MCFSIM_PADAT)) = 
> -			(ppdata | eLIA_PCIRESET);
> -	}
> -
> -
> -	*((volatile unsigned short *) (MCF_MBAR + MCFSIM_PADAT)) = ppdata;
> -#endif
> -}
> -
> -/*****************************************************************************/
> -
> -int pcibios_assign_resource_slot(int slot)
> -{
> -	volatile unsigned long	*rp;
> -	volatile unsigned char	*ip;
> -	unsigned int		idsel, addr, val, align, i;
> -	int			bar;
> -
> -#ifdef DEBUGPCI
> -	printk(KERN_INFO "pcibios_assign_resource_slot(slot=%x)\n", slot);
> -#endif
> -
> -	rp = (volatile unsigned long *) COMEM_BASE;
> -	idsel = COMEM_DA_ADDR(0x1 << (slot + 16));
> -
> -	/* Try to assign resource to each BAR */
> -	for (bar = 0; (bar < 6); bar++) {
> -		addr = COMEM_PCIBUS + PCI_BASE_ADDRESS_0 + (bar * 4);
> -		rp[LREG(COMEM_DAHBASE)] = COMEM_DA_CFGRD | idsel;
> -		val = rp[LREG(addr)];
> -#ifdef DEBUGRES
> -		printk(KERN_DEBUG "-----------------------------------"
> -			"-------------------------------------\n");
> -		printk(KERN_DEBUG "BAR[%d]: read=%08x ", bar, val);
> -#endif
> -
> -		rp[LREG(COMEM_DAHBASE)] = COMEM_DA_CFGWR | idsel;
> -		rp[LREG(addr)] = 0xffffffff;
> -
> -		rp[LREG(COMEM_DAHBASE)] = COMEM_DA_CFGRD | idsel;
> -		val = rp[LREG(addr)];
> -#ifdef DEBUGRES
> -		printk(KERN_DEBUG "write=%08x ", val);
> -#endif
> -		if (val == 0) {
> -#ifdef DEBUGRES
> -			printk(KERN_DEBUG "\n");
> -#endif
> -			continue;
> -		}
> -
> -		/* Determine space required by BAR */
> -		/* FIXME: this should go backwords from 0x80000000... */
> -		for (i = 0; (i < 32); i++) {
> -			if ((0x1 << i) & (val & 0xfffffffc))
> -				break;
> -		}
> -
> -#ifdef DEBUGRES
> -		printk(KERN_DEBUG "size=%08x(%d)\n", (0x1 << i), i);
> -#endif
> -		i = 0x1 << i;
> -
> -		/* Assign a resource */
> -		if (val & PCI_BASE_ADDRESS_SPACE_IO) {
> -			if (i < PCI_MINIO)
> -				i = PCI_MINIO;
> -#ifdef DEBUGRES
> -			printk(KERN_DEBUG "BAR[%d]: IO size=%08x iobase=%08x\n",
> -				bar, i, pci_iobase);
> -#endif
> -			if (i > 0xffff) {
> -				/* Invalid size?? */
> -				val = 0 | PCI_BASE_ADDRESS_SPACE_IO;
> -#ifdef DEBUGRES
> -				printk(KERN_DEBUG "BAR[%d]: too big for IO??\n", bar);
> -#endif
> -			} else {
> -				/* Check for un-alignment */
> -				if ((align = pci_iobase % i))
> -					pci_iobase += (i - align);
> -				val = pci_iobase | PCI_BASE_ADDRESS_SPACE_IO;
> -				pci_iobase += i;
> -			}
> -		} else {
> -			if (i < PCI_MINMEM)
> -				i = PCI_MINMEM;
> -#ifdef DEBUGRES
> -			printk(KERN_DEBUG "BAR[%d]: MEMORY size=%08x membase=%08x\n",
> -				bar, i, pci_membase);
> -#endif
> -			/* Check for un-alignment */
> -			if ((align = pci_membase % i))
> -				pci_membase += (i - align);
> -			val = pci_membase | PCI_BASE_ADDRESS_SPACE_MEMORY;
> -			pci_membase += i;
> -		}
> -
> -		/* Write resource back into BAR register */
> -		rp[LREG(COMEM_DAHBASE)] = COMEM_DA_CFGWR | idsel;
> -		rp[LREG(addr)] = val;
> -#ifdef DEBUGRES
> -		printk(KERN_DEBUG "BAR[%d]: assigned bar=%08x\n", bar, val);
> -#endif
> -	}
> -
> -#ifdef DEBUGRES
> -	printk(KERN_DEBUG "-----------------------------------"
> -			"-------------------------------------\n");
> -#endif
> -
> -	/* Assign IRQ if one is wanted... */
> -	ip = (volatile unsigned char *) (COMEM_BASE + COMEM_PCIBUS);
> -	rp[LREG(COMEM_DAHBASE)] = COMEM_DA_CFGRD | idsel;
> -
> -	addr = (PCI_INTERRUPT_PIN & 0xfc) + (~PCI_INTERRUPT_PIN & 0x03);
> -	if (ip[addr]) {
> -		rp[LREG(COMEM_DAHBASE)] = COMEM_DA_CFGWR | idsel;
> -		addr = (PCI_INTERRUPT_LINE & 0xfc)+(~PCI_INTERRUPT_LINE & 0x03);
> -		ip[addr] = 25;
> -#ifdef DEBUGRES
> -		printk(KERN_DEBUG "IRQ LINE=25\n");
> -#endif
> -	}
> -
> -	return(0);
> -}
> -
> -/*****************************************************************************/
> -
> -int pcibios_enable_slot(int slot)
> -{
> -	volatile unsigned long	*rp;
> -	volatile unsigned short	*wp;
> -	unsigned int		idsel, addr;
> -	unsigned short		cmd;
> -
> -#ifdef DEBUGPCI
> -	printk(KERN_DEBUG "pcibios_enbale_slot(slot=%x)\n", slot);
> -#endif
> -
> -	rp = (volatile unsigned long *) COMEM_BASE;
> -	wp = (volatile unsigned short *) COMEM_BASE;
> -	idsel = COMEM_DA_ADDR(0x1 << (slot + 16));
> -
> -	/* Get current command settings */
> -	addr = COMEM_PCIBUS + PCI_COMMAND;
> -	addr = (addr & ~0x3) + (~addr & 0x02);
> -	rp[LREG(COMEM_DAHBASE)] = COMEM_DA_CFGRD | idsel;
> -	cmd = wp[WREG(addr)];
> -	/*val = ((val & 0xff) << 8) | ((val >> 8) & 0xff);*/
> -
> -	/* Enable I/O and memory accesses to this device */
> -	rp[LREG(COMEM_DAHBASE)] = COMEM_DA_CFGWR | idsel;
> -	cmd |= PCI_COMMAND_IO | PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER;
> -	wp[WREG(addr)] = cmd;
> -
> -	return(0);
> -}
> -
> -/*****************************************************************************/
> -
> -void pcibios_assign_resources(void)
> -{
> -	volatile unsigned long	*rp;
> -	unsigned long		sel, id;
> -	int			slot;
> -
> -	rp = (volatile unsigned long *) COMEM_BASE;
> -
> -	/*
> -	 *	Do a quick scan of the PCI bus and see what is here.
> -	 */
> -	for (slot = COMEM_MINDEV; (slot <= COMEM_MAXDEV); slot++) {
> -		sel = COMEM_DA_CFGRD | COMEM_DA_ADDR(0x1 << (slot + 16));
> -		rp[LREG(COMEM_DAHBASE)] = sel;
> -		rp[LREG(COMEM_PCIBUS)] = 0; /* Clear bus */
> -		id = rp[LREG(COMEM_PCIBUS)];
> -		if ((id != 0) && ((id & 0xffff0000) != (sel & 0xffff0000))) {
> -			printk(KERN_INFO "PCI: slot=%d id=%08x\n", slot, (int) id);
> -			pci_slotmask |= 0x1 << slot;
> -			pcibios_assign_resource_slot(slot);
> -			pcibios_enable_slot(slot);
> -		}
> -	}
> -}
> -
> -/*****************************************************************************/
> -
> -int pcibios_init(void)
> -{
> -	volatile unsigned long	*rp;
> -	unsigned long		sel, id;
> -	int			slot;
> -
> -#ifdef DEBUGPCI
> -	printk(KERN_DEBUG "pcibios_init()\n");
> -#endif
> -
> -	pci_resetbus();
> -
> -	/*
> -	 *	Do some sort of basic check to see if the CO-MEM part
> -	 *	is present... This works ok, but I think we really need
> -	 *	something better...
> -	 */
> -	rp = (volatile unsigned long *) COMEM_BASE;
> -	if ((rp[LREG(COMEM_LBUSCFG)] & 0xff) != 0x50) {
> -		printk(KERN_INFO "PCI: no PCI bus present\n");
> -		return(0);
> -	}
> -
> -#ifdef COMEM_BRIDGEDEV
> -	/*
> -	 *	Setup the PCI bridge device first. It needs resources too,
> -	 *	so that bus masters can get to its shared memory.
> -	 */
> -	slot = COMEM_BRIDGEDEV;
> -	sel = COMEM_DA_CFGRD | COMEM_DA_ADDR(0x1 << (slot + 16));
> -	rp[LREG(COMEM_DAHBASE)] = sel;
> -	rp[LREG(COMEM_PCIBUS)] = 0; /* Clear bus */
> -	id = rp[LREG(COMEM_PCIBUS)];
> -	if ((id == 0) || ((id & 0xffff0000) == (sel & 0xffff0000))) {
> -		printk(KERN_INFO "PCI: no PCI bus bridge present\n");
> -		return(0);
> -	}
> -
> -	printk(KERN_INFO "PCI: bridge device at slot=%d id=%08x\n", slot, (int) id);
> -	pci_slotmask |= 0x1 << slot;
> -	pci_shmemaddr = pci_membase;
> -	pcibios_assign_resource_slot(slot);
> -	pcibios_enable_slot(slot);
> -#endif
> -
> -	pci_bus_is_present = 1;
> -
> -	/* Get PCI irq for local vectoring */
> -	if (request_irq(COMEM_IRQ, pci_interrupt, 0, "PCI bridge", NULL)) {
> -		printk(KERN_WARNING "PCI: failed to acquire interrupt %d\n", COMEM_IRQ);
> -	} else {
> -		mcf_autovector(COMEM_IRQ);
> -	}
> -
> -	pcibios_assign_resources();
> -
> -	return(0);
> -}
> -
> -/*****************************************************************************/
> -
> -char *pcibios_setup(char *option)
> -{
> -	/* Nothing for us to handle. */
> -	return(option);
> -}
> -/*****************************************************************************/
> -
> -void pcibios_fixup_bus(struct pci_bus *b)
> -{
> -}
> -
> -/*****************************************************************************/
> -
> -void pcibios_align_resource(void *data, struct resource *res,
> -				resource_size_t size, resource_size_t align)
> -{
> -}
> -
> -/*****************************************************************************/
> -
> -int pcibios_enable_device(struct pci_dev *dev, int mask)
> -{
> -	int slot;
> -
> -	slot = PCI_SLOT(dev->devfn);
> -	if ((dev->bus == 0) && (pci_slotmask & (1 << slot)))
> -		pcibios_enable_slot(slot);
> -	return(0);
> -}
> -
> -/*****************************************************************************/
> -
> -/*
> - *	Local routines to interrcept the standard I/O and vector handling
> - *	code. Don't include this 'till now - initialization code above needs
> - *	access to the real code too.
> - */
> -#include <asm/mcfpci.h>
> -
> -/*****************************************************************************/
> -
> -void pci_outb(unsigned char val, unsigned int addr)
> -{
> -	volatile unsigned long	*rp;
> -	volatile unsigned char	*bp;
> -
> -#ifdef DEBUGIO
> -	printk(KERN_DEBUG "pci_outb(val=%02x,addr=%x)\n", val, addr);
> -#endif
> -
> -	rp = (volatile unsigned long *) COMEM_BASE;
> -	bp = (volatile unsigned char *) COMEM_BASE;
> -	rp[LREG(COMEM_DAHBASE)] = COMEM_DA_IOWR | COMEM_DA_ADDR(addr);
> -	addr = (addr & ~0x3) + (~addr & 0x03);
> -	bp[(COMEM_PCIBUS + COMEM_DA_OFFSET(addr))] = val;
> -}
> -
> -/*****************************************************************************/
> -
> -void pci_outw(unsigned short val, unsigned int addr)
> -{
> -	volatile unsigned long	*rp;
> -	volatile unsigned short	*sp;
> -
> -#ifdef DEBUGIO
> -	printk(KERN_DEBUG "pci_outw(val=%04x,addr=%x)\n", val, addr);
> -#endif
> -
> -	rp = (volatile unsigned long *) COMEM_BASE;
> -	sp = (volatile unsigned short *) COMEM_BASE;
> -	rp[LREG(COMEM_DAHBASE)] = COMEM_DA_IOWR | COMEM_DA_ADDR(addr);
> -	addr = (addr & ~0x3) + (~addr & 0x02);
> -	if (pci_byteswap)
> -		val = ((val & 0xff) << 8) | ((val >> 8) & 0xff);
> -	sp[WREG(COMEM_PCIBUS + COMEM_DA_OFFSET(addr))] = val;
> -}
> -
> -/*****************************************************************************/
> -
> -void pci_outl(unsigned int val, unsigned int addr)
> -{
> -	volatile unsigned long	*rp;
> -	volatile unsigned int	*lp;
> -
> -#ifdef DEBUGIO
> -	printk(KERN_DEBUG "pci_outl(val=%08x,addr=%x)\n", val, addr);
> -#endif
> -
> -	rp = (volatile unsigned long *) COMEM_BASE;
> -	lp = (volatile unsigned int *) COMEM_BASE;
> -	rp[LREG(COMEM_DAHBASE)] = COMEM_DA_IOWR | COMEM_DA_ADDR(addr);
> -
> -	if (pci_byteswap)
> -		val = (val << 24) | ((val & 0x0000ff00) << 8) |
> -			((val & 0x00ff0000) >> 8) | (val >> 24);
> -
> -	lp[LREG(COMEM_PCIBUS + COMEM_DA_OFFSET(addr))] = val;
> -}
> -
> -/*****************************************************************************/
> -
> -unsigned long	pci_blmask[] = {
> -	0x000000e0,
> -	0x000000d0,
> -	0x000000b0,
> -	0x00000070
> -};
> -
> -unsigned char pci_inb(unsigned int addr)
> -{
> -	volatile unsigned long	*rp;
> -	volatile unsigned char	*bp;
> -	unsigned long		r;
> -	unsigned char		val;
> -
> -#ifdef DEBUGIO
> -	printk(KERN_DEBUG "pci_inb(addr=%x)\n", addr);
> -#endif
> -
> -	rp = (volatile unsigned long *) COMEM_BASE;
> -	bp = (volatile unsigned char *) COMEM_BASE;
> -
> -	r = COMEM_DA_IORD | COMEM_DA_ADDR(addr) | pci_blmask[(addr & 0x3)];
> -	rp[LREG(COMEM_DAHBASE)] = r;
> -
> -	addr = (addr & ~0x3) + (~addr & 0x3);
> -	val = bp[(COMEM_PCIBUS + COMEM_DA_OFFSET(addr))];
> -	return(val);
> -}
> -
> -/*****************************************************************************/
> -
> -unsigned long	pci_bwmask[] = {
> -	0x000000c0,
> -	0x000000c0,
> -	0x00000030,
> -	0x00000030
> -};
> -
> -unsigned short pci_inw(unsigned int addr)
> -{
> -	volatile unsigned long	*rp;
> -	volatile unsigned short	*sp;
> -	unsigned long		r;
> -	unsigned short		val;
> -
> -#ifdef DEBUGIO
> -	printk(KERN_DEBUG "pci_inw(addr=%x)", addr);
> -#endif
> -
> -	rp = (volatile unsigned long *) COMEM_BASE;
> -	r = COMEM_DA_IORD | COMEM_DA_ADDR(addr) | pci_bwmask[(addr & 0x3)];
> -	rp[LREG(COMEM_DAHBASE)] = r;
> -
> -	sp = (volatile unsigned short *) COMEM_BASE;
> -	addr = (addr & ~0x3) + (~addr & 0x02);
> -	val = sp[WREG(COMEM_PCIBUS + COMEM_DA_OFFSET(addr))];
> -	if (pci_byteswap)
> -		val = ((val & 0xff) << 8) | ((val >> 8) & 0xff);
> -#ifdef DEBUGIO
> -	printk(KERN_DEBUG "=%04x\n", val);
> -#endif
> -	return(val);
> -}
> -
> -/*****************************************************************************/
> -
> -unsigned int pci_inl(unsigned int addr)
> -{
> -	volatile unsigned long	*rp;
> -	volatile unsigned int	*lp;
> -	unsigned int		val;
> -
> -#ifdef DEBUGIO
> -	printk(KERN_DEBUG "pci_inl(addr=%x)", addr);
> -#endif
> -
> -	rp = (volatile unsigned long *) COMEM_BASE;
> -	lp = (volatile unsigned int *) COMEM_BASE;
> -	rp[LREG(COMEM_DAHBASE)] = COMEM_DA_IORD | COMEM_DA_ADDR(addr);
> -	val = lp[LREG(COMEM_PCIBUS + COMEM_DA_OFFSET(addr))];
> -
> -	if (pci_byteswap)
> -		val = (val << 24) | ((val & 0x0000ff00) << 8) |
> -			((val & 0x00ff0000) >> 8) | (val >> 24);
> -
> -#ifdef DEBUGIO
> -	printk(KERN_DEBUG "=%08x\n", val);
> -#endif
> -	return(val);
> -}
> -
> -/*****************************************************************************/
> -
> -void pci_outsb(void *addr, void *buf, int len)
> -{
> -	volatile unsigned long	*rp;
> -	volatile unsigned char	*bp;
> -	unsigned char		*dp = (unsigned char *) buf;
> -	unsigned int		a = (unsigned int) addr;
> -
> -#ifdef DEBUGIO
> -	printk(KERN_DEBUG "pci_outsb(addr=%x,buf=%x,len=%d)\n", (int)addr, (int)buf, len);
> -#endif
> -
> -	rp = (volatile unsigned long *) COMEM_BASE;
> -	rp[LREG(COMEM_DAHBASE)] = COMEM_DA_IOWR | COMEM_DA_ADDR(a);
> -
> -	a = (a & ~0x3) + (~a & 0x03);
> -	bp = (volatile unsigned char *)
> -		(COMEM_BASE + COMEM_PCIBUS + COMEM_DA_OFFSET(a));
> -
> -	while (len--)
> -		*bp = *dp++;
> -}
> -
> -/*****************************************************************************/
> -
> -void pci_outsw(void *addr, void *buf, int len)
> -{
> -	volatile unsigned long	*rp;
> -	volatile unsigned short	*wp;
> -	unsigned short		w, *dp = (unsigned short *) buf;
> -	unsigned int		a = (unsigned int) addr;
> -
> -#ifdef DEBUGIO
> -	printk(KERN_DEBUG "pci_outsw(addr=%x,buf=%x,len=%d)\n", (int)addr, (int)buf, len);
> -#endif
> -
> -	rp = (volatile unsigned long *) COMEM_BASE;
> -	rp[LREG(COMEM_DAHBASE)] = COMEM_DA_IOWR | COMEM_DA_ADDR(a);
> -
> -	a = (a & ~0x3) + (~a & 0x2);
> -	wp = (volatile unsigned short *)
> -		(COMEM_BASE + COMEM_PCIBUS + COMEM_DA_OFFSET(a));
> -
> -	while (len--) {
> -		w = *dp++;
> -		if (pci_byteswap)
> -			w = ((w & 0xff) << 8) | ((w >> 8) & 0xff);
> -		*wp = w;
> -	}
> -}
> -
> -/*****************************************************************************/
> -
> -void pci_outsl(void *addr, void *buf, int len)
> -{
> -	volatile unsigned long	*rp;
> -	volatile unsigned long	*lp;
> -	unsigned long		l, *dp = (unsigned long *) buf;
> -	unsigned int		a = (unsigned int) addr;
> -
> -#ifdef DEBUGIO
> -	printk(KERN_DEBUG "pci_outsl(addr=%x,buf=%x,len=%d)\n", (int)addr, (int)buf, len);
> -#endif
> -
> -	rp = (volatile unsigned long *) COMEM_BASE;
> -	rp[LREG(COMEM_DAHBASE)] = COMEM_DA_IOWR | COMEM_DA_ADDR(a);
> -
> -	lp = (volatile unsigned long *)
> -		(COMEM_BASE + COMEM_PCIBUS + COMEM_DA_OFFSET(a));
> -
> -	while (len--) {
> -		l = *dp++;
> -		if (pci_byteswap)
> -			l = (l << 24) | ((l & 0x0000ff00) << 8) |
> -				((l & 0x00ff0000) >> 8) | (l >> 24);
> -		*lp = l;
> -	}
> -}
> -
> -/*****************************************************************************/
> -
> -void pci_insb(void *addr, void *buf, int len)
> -{
> -	volatile unsigned long	*rp;
> -	volatile unsigned char	*bp;
> -	unsigned char		*dp = (unsigned char *) buf;
> -	unsigned int		a = (unsigned int) addr;
> -
> -#ifdef DEBUGIO
> -	printk(KERN_DEBUG "pci_insb(addr=%x,buf=%x,len=%d)\n", (int)addr, (int)buf, len);
> -#endif
> -
> -	rp = (volatile unsigned long *) COMEM_BASE;
> -	rp[LREG(COMEM_DAHBASE)] = COMEM_DA_IORD | COMEM_DA_ADDR(a);
> -
> -	a = (a & ~0x3) + (~a & 0x03);
> -	bp = (volatile unsigned char *)
> -		(COMEM_BASE + COMEM_PCIBUS + COMEM_DA_OFFSET(a));
> -
> -	while (len--)
> -		*dp++ = *bp;
> -}
> -
> -/*****************************************************************************/
> -
> -void pci_insw(void *addr, void *buf, int len)
> -{
> -	volatile unsigned long	*rp;
> -	volatile unsigned short	*wp;
> -	unsigned short		w, *dp = (unsigned short *) buf;
> -	unsigned int		a = (unsigned int) addr;
> -
> -#ifdef DEBUGIO
> -	printk(KERN_DEBUG "pci_insw(addr=%x,buf=%x,len=%d)\n", (int)addr, (int)buf, len);
> -#endif
> -
> -	rp = (volatile unsigned long *) COMEM_BASE;
> -	rp[LREG(COMEM_DAHBASE)] = COMEM_DA_IORD | COMEM_DA_ADDR(a);
> -
> -	a = (a & ~0x3) + (~a & 0x2);
> -	wp = (volatile unsigned short *)
> -		(COMEM_BASE + COMEM_PCIBUS + COMEM_DA_OFFSET(a));
> -
> -	while (len--) {
> -		w = *wp;
> -		if (pci_byteswap)
> -			w = ((w & 0xff) << 8) | ((w >> 8) & 0xff);
> -		*dp++ = w;
> -	}
> -}
> -
> -/*****************************************************************************/
> -
> -void pci_insl(void *addr, void *buf, int len)
> -{
> -	volatile unsigned long	*rp;
> -	volatile unsigned long	*lp;
> -	unsigned long		l, *dp = (unsigned long *) buf;
> -	unsigned int		a = (unsigned int) addr;
> -
> -#ifdef DEBUGIO
> -	printk(KERN_DEBUG "pci_insl(addr=%x,buf=%x,len=%d)\n", (int)addr, (int)buf, len);
> -#endif
> -
> -	rp = (volatile unsigned long *) COMEM_BASE;
> -	rp[LREG(COMEM_DAHBASE)] = COMEM_DA_IORD | COMEM_DA_ADDR(a);
> -
> -	lp = (volatile unsigned long *)
> -		(COMEM_BASE + COMEM_PCIBUS + COMEM_DA_OFFSET(a));
> -
> -	while (len--) {
> -		l = *lp;
> -		if (pci_byteswap)
> -			l = (l << 24) | ((l & 0x0000ff00) << 8) |
> -				((l & 0x00ff0000) >> 8) | (l >> 24);
> -		*dp++ = l;
> -	}
> -}
> -
> -/*****************************************************************************/
> -
> -struct pci_localirqlist {
> -	void		(*handler)(int, void *, struct pt_regs *);
> -	const char	*device;
> -	void		*dev_id;
> -};
> -
> -struct pci_localirqlist	pci_irqlist[COMEM_MAXPCI];
> -
> -/*****************************************************************************/
> -
> -int pci_request_irq(unsigned int irq,
> -	void (*handler)(int, void *, struct pt_regs *),
> -	unsigned long flags, const char *device, void *dev_id)
> -{
> -	int	i;
> -
> -#ifdef DEBUGIO
> -	printk(KERN_DEBUG "pci_request_irq(irq=%d,handler=%x,flags=%x,device=%s,"
> -		"dev_id=%x)\n", irq, (int) handler, (int) flags, device,
> -		(int) dev_id);
> -#endif
> -
> -	/* Check if this interrupt handler is already lodged */
> -	for (i = 0; (i < COMEM_MAXPCI); i++) {
> -		if (pci_irqlist[i].handler == handler)
> -			return(0);
> -	}
> -
> -	/* Find a free spot to put this handler */
> -	for (i = 0; (i < COMEM_MAXPCI); i++) {
> -		if (pci_irqlist[i].handler == 0) {
> -			pci_irqlist[i].handler = handler;
> -			pci_irqlist[i].device = device;
> -			pci_irqlist[i].dev_id = dev_id;
> -			return(0);
> -		}
> -	}
> -
> -	/* Couldn't fit?? */
> -	return(1);
> -}
> -
> -/*****************************************************************************/
> -
> -void pci_free_irq(unsigned int irq, void *dev_id)
> -{
> -	int	i;
> -
> -#ifdef DEBUGIO
> -	printk(KERN_DEBUG "pci_free_irq(irq=%d,dev_id=%x)\n", irq, (int) dev_id);
> -#endif
> -
> -	if (dev_id == (void *) NULL)
> -		return;
> -
> -	/* Check if this interrupt handler is lodged */
> -	for (i = 0; (i < COMEM_MAXPCI); i++) {
> -		if (pci_irqlist[i].dev_id == dev_id) {
> -			pci_irqlist[i].handler = NULL;
> -			pci_irqlist[i].device = NULL;
> -			pci_irqlist[i].dev_id = NULL;
> -			break;
> -		}
> -	}
> -}
> -
> -/*****************************************************************************/
> -
> -void pci_interrupt(int irq, void *id, struct pt_regs *fp)
> -{
> -	int	i;
> -
> -#ifdef DEBUGIO
> -	printk(KERN_DEBUG "pci_interrupt(irq=%d,id=%x,fp=%x)\n", irq, (int) id, (int) fp);
> -#endif
> -
> -	for (i = 0; (i < COMEM_MAXPCI); i++) {
> -		if (pci_irqlist[i].handler)
> -			(*pci_irqlist[i].handler)(irq,pci_irqlist[i].dev_id,fp);
> -	}
> -}
> -
> -/*****************************************************************************/
> -
> -/*
> - *	The shared memory region is broken up into contiguous 512 byte
> - *	regions for easy allocation... This is not an optimal solution
> - *	but it makes allocation and freeing regions really easy.
> - */
> -
> -#define	PCI_MEMSLOTSIZE		512
> -#define	PCI_MEMSLOTS		(COMEM_SHMEMSIZE / PCI_MEMSLOTSIZE)
> -
> -char	pci_shmemmap[PCI_MEMSLOTS];
> -
> -
> -void *pci_bmalloc(int size)
> -{
> -	int	i, j, nrslots;
> -
> -#ifdef DEBUGIO
> -	printk(KERN_DEBUG "pci_bmalloc(size=%d)\n", size);
> -#endif
> -
> -	if (size <= 0)
> -		return((void *) NULL);
> -
> -	nrslots = (size - 1) / PCI_MEMSLOTSIZE;
> -
> -	for (i = 0; (i < (PCI_MEMSLOTS-nrslots)); i++) {
> -		if (pci_shmemmap[i] == 0) {
> -			for (j = i+1; (j < (i+nrslots)); j++) {
> -				if (pci_shmemmap[j])
> -					goto restart;
> -			}
> -
> -			for (j = i; (j <= i+nrslots); j++)
> -				pci_shmemmap[j] = 1;
> -			break;
> -		}
> -restart:
> -	}
> -
> -	return((void *) (COMEM_BASE + COMEM_SHMEM + (i * PCI_MEMSLOTSIZE)));
> -}
> -
> -/*****************************************************************************/
> -
> -void pci_bmfree(void *mp, int size)
> -{
> -	int	i, j, nrslots;
> -
> -#ifdef DEBUGIO
> -	printk(KERN_DEBUG "pci_bmfree(mp=%x,size=%d)\n", (int) mp, size);
> -#endif
> -
> -	nrslots = size / PCI_MEMSLOTSIZE;
> -	i = (((unsigned long) mp) - (COMEM_BASE + COMEM_SHMEM)) /
> -		PCI_MEMSLOTSIZE;
> -
> -	for (j = i; (j < (i+nrslots)); j++)
> -		pci_shmemmap[j] = 0;
> -}
> -
> -/*****************************************************************************/
> -
> -unsigned long pci_virt_to_bus(volatile void *address)
> -{
> -	unsigned long	l;
> -
> -#ifdef DEBUGIO
> -	printk(KERN_DEBUG "pci_virt_to_bus(address=%x)", (int) address);
> -#endif
> -
> -	l = ((unsigned long) address) - COMEM_BASE;
> -#ifdef DEBUGIO
> -	printk(KERN_DEBUG "=%x\n", (int) (l+pci_shmemaddr));
> -#endif
> -	return(l + pci_shmemaddr);
> -}
> -
> -/*****************************************************************************/
> -
> -void *pci_bus_to_virt(unsigned long address)
> -{
> -	unsigned long	l;
> -
> -#ifdef DEBUGIO
> -	printk(KERN_DEBUG "pci_bus_to_virt(address=%x)", (int) address);
> -#endif
> -
> -	l = address - pci_shmemaddr;
> -#ifdef DEBUGIO
> -	printk(KERN_DEBUG "=%x\n", (int) (address + COMEM_BASE));
> -#endif
> -	return((void *) (address + COMEM_BASE));
> -}
> -
> -/*****************************************************************************/
> -
> -void pci_bmcpyto(void *dst, void *src, int len)
> -{
> -	unsigned long	*dp, *sp, val;
> -	unsigned char	*dcp, *scp;
> -	int		i, j;
> -
> -#ifdef DEBUGIO
> -	printk(KERN_DEBUG "pci_bmcpyto(dst=%x,src=%x,len=%d)\n", (int)dst, (int)src, len);
> -#endif
> -
> -	dp = (unsigned long *) dst;
> -	sp = (unsigned long *) src;
> -	i = len >> 2;
> -
> -#if 0
> -	printk(KERN_INFO "DATA:");
> -	scp = (unsigned char *) sp;
> -	for (i = 0; (i < len); i++) {
> -		if ((i % 16) == 0) printk(KERN_INFO "\n%04x: ", i);
> -		printk(KERN_INFO "%02x ", *scp++);
> -	}
> -	printk(KERN_INFO "\n");
> -#endif
> -
> -	for (j = 0; (i >= 0); i--, j++) {
> -		val = *sp++;
> -		val = (val << 24) | ((val & 0x0000ff00) << 8) |
> -			((val & 0x00ff0000) >> 8) | (val >> 24);
> -		*dp++ = val;
> -	}
> -
> -	if (len & 0x3) {
> -		dcp = (unsigned char *) dp;
> -		scp = ((unsigned char *) sp) + 3;
> -		for (i = 0; (i < (len & 0x3)); i++)
> -			*dcp++ = *scp--;
> -	}
> -}
> -
> -/*****************************************************************************/
> -
> -void pci_bmcpyfrom(void *dst, void *src, int len)
> -{
> -	unsigned long	*dp, *sp, val;
> -	unsigned char	*dcp, *scp;
> -	int		i;
> -
> -#ifdef DEBUGIO
> -	printk(KERN_DEBUG "pci_bmcpyfrom(dst=%x,src=%x,len=%d)\n",(int)dst,(int)src,len);
> -#endif
> -
> -	dp = (unsigned long *) dst;
> -	sp = (unsigned long *) src;
> -	i = len >> 2;
> -
> -	for (; (i >= 0); i--) {
> -		val = *sp++;
> -		val = (val << 24) | ((val & 0x0000ff00) << 8) |
> -			((val & 0x00ff0000) >> 8) | (val >> 24);
> -		*dp++ = val;
> -	}
> -
> -	if (len & 0x3) {
> -		dcp = ((unsigned char *) dp) + 3;
> -		scp = (unsigned char *) sp;
> -		for (i = 0; (i < (len & 0x3)); i++)
> -			*dcp++ = *scp--;
> -	}
> -
> -#if 0
> -	printk(KERN_INFO "DATA:");
> -	dcp = (unsigned char *) dst;
> -	for (i = 0; (i < len); i++) {
> -		if ((i % 16) == 0) printk(KERN_INFO "\n%04x: ", i);
> -		printk(KERN_INFO "%02x ", *dcp++);
> -	}
> -	printk(KERN_INFO "\n");
> -#endif
> -}
> -
> -/*****************************************************************************/
> -
> -void *pci_alloc_consistent(struct pci_dev *dev, size_t size, dma_addr_t *dma_addr)
> -{
> -	void *mp;
> -	if ((mp = pci_bmalloc(size)) != NULL) {
> -		dma_addr = mp - (COMEM_BASE + COMEM_SHMEM);
> -		return(mp);
> -	}
> -	*dma_addr = (dma_addr_t) NULL;
> -	return(NULL);
> -}
> -
> -/*****************************************************************************/
> -
> -void pci_free_consistent(struct pci_dev *dev, size_t size, void *cpu_addr, dma_addr_t dma_addr)
> -{
> -	pci_bmfree(cpu_addr, size);
> -}
> -
> -/*****************************************************************************/
> 
> 

-- 
------------------------------------------------------------------------
Greg Ungerer  --  Chief Software Dude       EMAIL:     gerg@snapgear.com
Secure Computing Corporation                PHONE:       +61 7 3435 2888
825 Stanley St,                             FAX:         +61 7 3891 3630
Woolloongabba, QLD, 4102, Australia         WEB: http://www.SnapGear.com