[linux-block.git] / drivers / char / rio / rioinit.c

/*
** -----------------------------------------------------------------------------
**
**  Perle Specialix driver for Linux
**  Ported from existing RIO Driver for SCO sources.
 *
 *  (C) 1990 - 2000 Specialix International Ltd., Byfleet, Surrey, UK.
 *
 *      This program is free software; you can redistribute it and/or modify
 *      it under the terms of the GNU General Public License as published by
 *      the Free Software Foundation; either version 2 of the License, or
 *      (at your option) any later version.
 *
 *      This program is distributed in the hope that it will be useful,
 *      but WITHOUT ANY WARRANTY; without even the implied warranty of
 *      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *      GNU General Public License for more details.
 *
 *      You should have received a copy of the GNU General Public License
 *      along with this program; if not, write to the Free Software
 *      Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
**
**	Module		: rioinit.c
**	SID		: 1.3
**	Last Modified	: 11/6/98 10:33:43
**	Retrieved	: 11/6/98 10:33:49
**
**  ident @(#)rioinit.c	1.3
**
** -----------------------------------------------------------------------------
*/

#include <linux/module.h>
#include <linux/errno.h>
#include <linux/delay.h>
#include <asm/io.h>
#include <asm/system.h>
#include <asm/string.h>
#include <asm/uaccess.h>

#include <linux/termios.h>
#include <linux/serial.h>

#include <linux/generic_serial.h>


#include "linux_compat.h"
#include "pkt.h"
#include "daemon.h"
#include "rio.h"
#include "riospace.h"
#include "cmdpkt.h"
#include "map.h"
#include "rup.h"
#include "port.h"
#include "riodrvr.h"
#include "rioinfo.h"
#include "func.h"
#include "errors.h"
#include "pci.h"

#include "parmmap.h"
#include "unixrup.h"
#include "board.h"
#include "host.h"
#include "phb.h"
#include "link.h"
#include "cmdblk.h"
#include "route.h"
#include "cirrus.h"
#include "rioioctl.h"
#include "rio_linux.h"

int RIOPCIinit(struct rio_info *p, int Mode);

static int RIOScrub(int, u8 __iomem *, int);


/**
** RIOAssignAT :
**
** Fill out the fields in the p->RIOHosts structure now we know we know
** we have a board present.
**
** bits < 0 indicates 8 bit operation requested,
** bits > 0 indicates 16 bit operation.
*/

int RIOAssignAT(struct rio_info *p, int	Base, void __iomem *virtAddr, int mode)
{
	int		bits;
	struct DpRam __iomem *cardp = (struct DpRam __iomem *)virtAddr;

	if ((Base < ONE_MEG) || (mode & BYTE_ACCESS_MODE))
		bits = BYTE_OPERATION;
	else
		bits = WORD_OPERATION;

	/*
	** Board has passed its scrub test. Fill in all the
	** transient stuff.
	*/
	p->RIOHosts[p->RIONumHosts].Caddr	= virtAddr;
	p->RIOHosts[p->RIONumHosts].CardP	= virtAddr;

	/*
	** Revision 01 AT host cards don't support WORD operations,
	*/
	if (readb(&cardp->DpRevision) == 01)
		bits = BYTE_OPERATION;

	p->RIOHosts[p->RIONumHosts].Type = RIO_AT;
	p->RIOHosts[p->RIONumHosts].Copy = rio_copy_to_card;
											/* set this later */
	p->RIOHosts[p->RIONumHosts].Slot = -1;
	p->RIOHosts[p->RIONumHosts].Mode = SLOW_LINKS | SLOW_AT_BUS | bits;
	writeb(BOOT_FROM_RAM | EXTERNAL_BUS_OFF | p->RIOHosts[p->RIONumHosts].Mode | INTERRUPT_DISABLE ,
		&p->RIOHosts[p->RIONumHosts].Control);
	writeb(0xFF, &p->RIOHosts[p->RIONumHosts].ResetInt);
	writeb(BOOT_FROM_RAM | EXTERNAL_BUS_OFF | p->RIOHosts[p->RIONumHosts].Mode | INTERRUPT_DISABLE,
		&p->RIOHosts[p->RIONumHosts].Control);
	writeb(0xFF, &p->RIOHosts[p->RIONumHosts].ResetInt);
	p->RIOHosts[p->RIONumHosts].UniqueNum =
		((readb(&p->RIOHosts[p->RIONumHosts].Unique[0])&0xFF)<<0)|
		((readb(&p->RIOHosts[p->RIONumHosts].Unique[1])&0xFF)<<8)|
		((readb(&p->RIOHosts[p->RIONumHosts].Unique[2])&0xFF)<<16)|
		((readb(&p->RIOHosts[p->RIONumHosts].Unique[3])&0xFF)<<24);
	rio_dprintk (RIO_DEBUG_INIT, "RIO-init: Uniquenum 0x%x\n",p->RIOHosts[p->RIONumHosts].UniqueNum);

	p->RIONumHosts++;
	rio_dprintk (RIO_DEBUG_INIT, "RIO-init: Tests Passed at 0x%x\n", Base);
	return(1);
}

static	u8	val[] = {
#ifdef VERY_LONG_TEST
	  0x00, 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80,
	  0xa5, 0xff, 0x5a, 0x00, 0xff, 0xc9, 0x36, 
#endif
	  0xff, 0x00, 0x00 };

#define	TEST_END sizeof(val)

/*
** RAM test a board. 
** Nothing too complicated, just enough to check it out.
*/
int RIOBoardTest(unsigned long paddr, void __iomem *caddr, unsigned char type, int slot)
{
	struct DpRam __iomem *DpRam = caddr;
	void __iomem *ram[4];
	int  size[4];
	int  op, bank;
	int  nbanks;

	rio_dprintk (RIO_DEBUG_INIT, "RIO-init: Reset host type=%d, DpRam=%p, slot=%d\n",
			type, DpRam, slot);

	RIOHostReset(type, DpRam, slot);

	/*
	** Scrub the memory. This comes in several banks:
	** DPsram1	- 7000h bytes
	** DPsram2	- 200h  bytes
	** DPsram3	- 7000h bytes
	** scratch	- 1000h bytes
	*/

	rio_dprintk (RIO_DEBUG_INIT, "RIO-init: Setup ram/size arrays\n");

	size[0] = DP_SRAM1_SIZE;
	size[1] = DP_SRAM2_SIZE;
	size[2] = DP_SRAM3_SIZE;
	size[3] = DP_SCRATCH_SIZE;

	ram[0] = DpRam->DpSram1;
	ram[1] = DpRam->DpSram2;
	ram[2] = DpRam->DpSram3;
	nbanks = (type == RIO_PCI) ? 3 : 4;
	if (nbanks == 4)
		ram[3] = DpRam->DpScratch;


	if (nbanks == 3) {
		rio_dprintk (RIO_DEBUG_INIT, "RIO-init: Memory: %p(0x%x), %p(0x%x), %p(0x%x)\n",
				ram[0], size[0], ram[1], size[1], ram[2], size[2]);
	} else {
		rio_dprintk (RIO_DEBUG_INIT, "RIO-init: %p(0x%x), %p(0x%x), %p(0x%x), %p(0x%x)\n",
				ram[0], size[0], ram[1], size[1], ram[2], size[2], ram[3], size[3]);
	}

	/*
	** This scrub operation will test for crosstalk between
	** banks. TEST_END is a magic number, and relates to the offset
	** within the 'val' array used by Scrub.
	*/
	for (op=0; op<TEST_END; op++) {
		for (bank=0; bank<nbanks; bank++) {
			if (RIOScrub(op, ram[bank], size[bank]) == RIO_FAIL) {
				rio_dprintk (RIO_DEBUG_INIT, "RIO-init: RIOScrub band %d, op %d failed\n", 
							bank, op);
				return RIO_FAIL;
			}
		}
	}

	rio_dprintk (RIO_DEBUG_INIT, "Test completed\n");
	return 0;
}


/*
** Scrub an area of RAM.
** Define PRETEST and POSTTEST for a more thorough checking of the
** state of the memory.
** Call with op set to an index into the above 'val' array to determine
** which value will be written into memory.
** Call with op set to zero means that the RAM will not be read and checked
** before it is written.
** Call with op not zero and the RAM will be read and compared with val[op-1]
** to check that the data from the previous phase was retained.
*/

static int RIOScrub(int op, u8 __iomem *ram, int size)
{
	int off;
	unsigned char	oldbyte;
	unsigned char	newbyte;
	unsigned char	invbyte;
	unsigned short	oldword;
	unsigned short	newword;
	unsigned short	invword;
	unsigned short	swapword;

	if (op) {
		oldbyte = val[op-1];
		oldword = oldbyte | (oldbyte<<8);
	} else
	  oldbyte = oldword = 0; /* Tell the compiler we've initilalized them. */
	newbyte = val[op];
	newword = newbyte | (newbyte<<8);
	invbyte = ~newbyte;
	invword = invbyte | (invbyte<<8);

	/*
	** Check that the RAM contains the value that should have been left there
	** by the previous test (not applicable for pass zero)
	*/
	if (op) {
		for (off=0; off<size; off++) {
			if (readb(ram + off) != oldbyte) {
				rio_dprintk (RIO_DEBUG_INIT, "RIO-init: Byte Pre Check 1: BYTE at offset 0x%x should have been=%x, was=%x\n", off, oldbyte, readb(ram + off));
				return RIO_FAIL;
			}
		}
		for (off=0; off<size; off+=2) {
			if (readw(ram + off) != oldword) {
				rio_dprintk (RIO_DEBUG_INIT, "RIO-init: Word Pre Check: WORD at offset 0x%x should have been=%x, was=%x\n",off,oldword, readw(ram + off));
				rio_dprintk (RIO_DEBUG_INIT, "RIO-init: Word Pre Check: BYTE at offset 0x%x is %x BYTE at offset 0x%x is %x\n", off, readb(ram + off), off+1, readb(ram+off+1));
				return RIO_FAIL;
			}
		}
	}

	/*
	** Now write the INVERSE of the test data into every location, using
	** BYTE write operations, first checking before each byte is written
	** that the location contains the old value still, and checking after
	** the write that the location contains the data specified - this is
	** the BYTE read/write test.
	*/
	for (off=0; off<size; off++) {
		if (op && (readb(ram + off) != oldbyte)) {
			rio_dprintk (RIO_DEBUG_INIT, "RIO-init: Byte Pre Check 2: BYTE at offset 0x%x should have been=%x, was=%x\n", off, oldbyte, readb(ram + off));
			return RIO_FAIL;
		}
		writeb(invbyte, ram + off);
		if (readb(ram + off) != invbyte) {
			rio_dprintk (RIO_DEBUG_INIT, "RIO-init: Byte Inv Check: BYTE at offset 0x%x should have been=%x, was=%x\n", off, invbyte, readb(ram + off));
			return RIO_FAIL;
		}
	}

	/*
	** now, use WORD operations to write the test value into every location,
	** check as before that the location contains the previous test value
	** before overwriting, and that it contains the data value written
	** afterwards.
	** This is the WORD operation test.
	*/
	for (off=0; off<size; off+=2) {
		if (readw(ram + off) != invword) {
			rio_dprintk (RIO_DEBUG_INIT, "RIO-init: Word Inv Check: WORD at offset 0x%x should have been=%x, was=%x\n", off, invword, readw(ram + off));
			rio_dprintk (RIO_DEBUG_INIT, "RIO-init: Word Inv Check: BYTE at offset 0x%x is %x BYTE at offset 0x%x is %x\n", off, readb(ram + off), off+1, readb(ram+off+1));
			return RIO_FAIL;
		}

		writew(newword, ram + off);
		if ( readw(ram + off) != newword ) {
			rio_dprintk (RIO_DEBUG_INIT, "RIO-init: Post Word Check 1: WORD at offset 0x%x should have been=%x, was=%x\n", off, newword, readw(ram + off));
			rio_dprintk (RIO_DEBUG_INIT, "RIO-init: Post Word Check 1: BYTE at offset 0x%x is %x BYTE at offset 0x%x is %x\n", off, readb(ram + off), off+1, readb(ram + off + 1));
			return RIO_FAIL;
		}
	}

	/*
	** now run through the block of memory again, first in byte mode
	** then in word mode, and check that all the locations contain the
	** required test data.
	*/
	for (off=0; off<size; off++) {
		if (readb(ram + off) != newbyte) {
			rio_dprintk (RIO_DEBUG_INIT, "RIO-init: Post Byte Check: BYTE at offset 0x%x should have been=%x, was=%x\n", off, newbyte, readb(ram + off));
			return RIO_FAIL;
		}
	}

	for (off=0; off<size; off+=2) {
		if (readw(ram + off) != newword ) {
			rio_dprintk (RIO_DEBUG_INIT, "RIO-init: Post Word Check 2: WORD at offset 0x%x should have been=%x, was=%x\n", off, newword, readw(ram + off));
			rio_dprintk (RIO_DEBUG_INIT, "RIO-init: Post Word Check 2: BYTE at offset 0x%x is %x BYTE at offset 0x%x is %x\n", off, readb(ram + off), off+1, readb(ram + off + 1));
			return RIO_FAIL;
		}
	}

	/*
	** time to check out byte swapping errors
	*/
	swapword = invbyte | (newbyte << 8);

	for (off=0; off<size; off+=2) {
		writeb(invbyte, &ram[off]);
		writeb(newbyte, &ram[off+1]);
	}

	for ( off=0; off<size; off+=2 ) {
		if (readw(ram + off) != swapword) {
			rio_dprintk (RIO_DEBUG_INIT, "RIO-init: SwapWord Check 1: WORD at offset 0x%x should have been=%x, was=%x\n", off, swapword, readw(ram + off));
			rio_dprintk (RIO_DEBUG_INIT, "RIO-init: SwapWord Check 1: BYTE at offset 0x%x is %x BYTE at offset 0x%x is %x\n", off, readb(ram + off), off+1, readb(ram + off + 1));
			return RIO_FAIL;
		}
		writew(~swapword, ram + off);
	}

	for (off=0; off<size; off+=2) {
		if (readb(ram + off) != newbyte) {
			rio_dprintk (RIO_DEBUG_INIT, "RIO-init: SwapWord Check 2: BYTE at offset 0x%x should have been=%x, was=%x\n", off, newbyte, readb(ram + off));
			return RIO_FAIL;
		}
		if (readb(ram + off + 1) != invbyte) {
			rio_dprintk (RIO_DEBUG_INIT, "RIO-init: SwapWord Check 2: BYTE at offset 0x%x should have been=%x, was=%x\n", off+1, invbyte, readb(ram + off + 1));
			return RIO_FAIL;
		}
		writew(newword, ram + off);
	}
	return 0;
}


int RIODefaultName(struct rio_info *p, struct Host *HostP, unsigned int	UnitId)
{
	memcpy(HostP->Mapping[UnitId].Name, "UNKNOWN RTA X-XX", 17);
	HostP->Mapping[UnitId].Name[12]='1'+(HostP-p->RIOHosts);
	if ((UnitId+1) > 9) {
		HostP->Mapping[UnitId].Name[14]='0'+((UnitId+1)/10);
		HostP->Mapping[UnitId].Name[15]='0'+((UnitId+1)%10);
	}
	else {
		HostP->Mapping[UnitId].Name[14]='1'+UnitId;
		HostP->Mapping[UnitId].Name[15]=0;
	}
	return 0;
}

#define RIO_RELEASE	"Linux"
#define RELEASE_ID	"1.0"

static struct rioVersion	stVersion;

struct rioVersion *RIOVersid(void)
{
    strlcpy(stVersion.version, "RIO driver for linux V1.0",
	    sizeof(stVersion.version));
    strlcpy(stVersion.buildDate, __DATE__,
	    sizeof(stVersion.buildDate));

    return &stVersion;
}

void RIOHostReset(unsigned int Type, struct DpRam __iomem *DpRamP, unsigned int Slot)
{
	/*
	** Reset the Tpu
	*/
	rio_dprintk (RIO_DEBUG_INIT,  "RIOHostReset: type 0x%x", Type);
	switch ( Type ) {
	case RIO_AT:
		rio_dprintk (RIO_DEBUG_INIT, " (RIO_AT)\n");
		writeb(BOOT_FROM_RAM | EXTERNAL_BUS_OFF | INTERRUPT_DISABLE | BYTE_OPERATION |
			SLOW_LINKS | SLOW_AT_BUS, &DpRamP->DpControl);
		writeb(0xFF, &DpRamP->DpResetTpu);
		udelay(3);
			rio_dprintk (RIO_DEBUG_INIT,  "RIOHostReset: Don't know if it worked. Try reset again\n");
		writeb(BOOT_FROM_RAM | EXTERNAL_BUS_OFF | INTERRUPT_DISABLE |
			BYTE_OPERATION | SLOW_LINKS | SLOW_AT_BUS, &DpRamP->DpControl);
		writeb(0xFF, &DpRamP->DpResetTpu);
		udelay(3);
		break;
	case RIO_PCI:
		rio_dprintk (RIO_DEBUG_INIT, " (RIO_PCI)\n");
		writeb(RIO_PCI_BOOT_FROM_RAM, &DpRamP->DpControl);
		writeb(0xFF, &DpRamP->DpResetInt);
		writeb(0xFF, &DpRamP->DpResetTpu);
		udelay(100);
		break;
	default:
		rio_dprintk (RIO_DEBUG_INIT, " (UNKNOWN)\n");
		break;
	}
	return;
}
Commit	Line	Data
1da177e4 LT	1	/*
	2	** -----------------------------------------------------------------------------
	3	**
	4	** Perle Specialix driver for Linux
	5	** Ported from existing RIO Driver for SCO sources.
	6	*
	7	* (C) 1990 - 2000 Specialix International Ltd., Byfleet, Surrey, UK.
	8	*
	9	* This program is free software; you can redistribute it and/or modify
	10	* it under the terms of the GNU General Public License as published by
	11	* the Free Software Foundation; either version 2 of the License, or
	12	* (at your option) any later version.
	13	*
	14	* This program is distributed in the hope that it will be useful,
	15	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	16	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	17	* GNU General Public License for more details.
	18	*
	19	* You should have received a copy of the GNU General Public License
	20	* along with this program; if not, write to the Free Software
	21	* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
	22	**
	23	** Module : rioinit.c
	24	** SID : 1.3
	25	** Last Modified : 11/6/98 10:33:43
	26	** Retrieved : 11/6/98 10:33:49
	27	**
	28	** ident @(#)rioinit.c 1.3
	29	**
	30	** -----------------------------------------------------------------------------
	31	*/
1da177e4	32
1da177e4	33	#include <linux/module.h>
1da177e4	34	#include <linux/errno.h>
97998d8f	35	#include <linux/delay.h>
1da177e4 LT	36	#include <asm/io.h>
	37	#include <asm/system.h>
	38	#include <asm/string.h>
1da177e4 LT	39	#include <asm/uaccess.h>
	40
	41	#include <linux/termios.h>
	42	#include <linux/serial.h>
	43
	44	#include <linux/generic_serial.h>
	45
	46
	47	#include "linux_compat.h"
1da177e4 LT	48	#include "pkt.h"
	49	#include "daemon.h"
	50	#include "rio.h"
	51	#include "riospace.h"
1da177e4 LT	52	#include "cmdpkt.h"
1da177e4 LT	53	#include "map.h"
1da177e4 LT	54	#include "rup.h"
	55	#include "port.h"
	56	#include "riodrvr.h"
	57	#include "rioinfo.h"
	58	#include "func.h"
	59	#include "errors.h"
	60	#include "pci.h"
	61
	62	#include "parmmap.h"
	63	#include "unixrup.h"
	64	#include "board.h"
	65	#include "host.h"
1da177e4 LT	66	#include "phb.h"
	67	#include "link.h"
	68	#include "cmdblk.h"
	69	#include "route.h"
1da177e4 LT	70	#include "cirrus.h"
	71	#include "rioioctl.h"
	72	#include "rio_linux.h"
	73
1da177e4 LT	74	int RIOPCIinit(struct rio_info *p, int Mode);
1da177e4 LT	75
d886cb58	76	static int RIOScrub(int, u8 __iomem *, int);
1da177e4	77
1da177e4 LT	78
	79	/**
	80	** RIOAssignAT :
	81	**
	82	** Fill out the fields in the p->RIOHosts structure now we know we know
	83	** we have a board present.
	84	**
	85	** bits < 0 indicates 8 bit operation requested,
	86	** bits > 0 indicates 16 bit operation.
	87	*/
00d83a54	88
d886cb58	89	int RIOAssignAT(struct rio_info p, int Base, void __iomem virtAddr, int mode)
1da177e4 LT	90	{
1da177e4 LT	91	int bits;
d886cb58	92	struct DpRam __iomem cardp = (struct DpRam __iomem )virtAddr;
1da177e4 LT	93
	94	if ((Base < ONE_MEG) \|\| (mode & BYTE_ACCESS_MODE))
	95	bits = BYTE_OPERATION;
	96	else
	97	bits = WORD_OPERATION;
	98
	99	/*
	100	** Board has passed its scrub test. Fill in all the
	101	** transient stuff.
	102	*/
	103	p->RIOHosts[p->RIONumHosts].Caddr = virtAddr;
d886cb58	104	p->RIOHosts[p->RIONumHosts].CardP = virtAddr;
1da177e4 LT	105
	106	/*
	107	** Revision 01 AT host cards don't support WORD operations,
	108	*/
00d83a54	109	if (readb(&cardp->DpRevision) == 01)
1da177e4 LT	110	bits = BYTE_OPERATION;
	111
	112	p->RIOHosts[p->RIONumHosts].Type = RIO_AT;
00d83a54	113	p->RIOHosts[p->RIONumHosts].Copy = rio_copy_to_card;
1da177e4 LT	114	/* set this later */
	115	p->RIOHosts[p->RIONumHosts].Slot = -1;
	116	p->RIOHosts[p->RIONumHosts].Mode = SLOW_LINKS \| SLOW_AT_BUS \| bits;
00d83a54 AC	117	writeb(BOOT_FROM_RAM \| EXTERNAL_BUS_OFF \| p->RIOHosts[p->RIONumHosts].Mode \| INTERRUPT_DISABLE ,
	118	&p->RIOHosts[p->RIONumHosts].Control);
	119	writeb(0xFF, &p->RIOHosts[p->RIONumHosts].ResetInt);
	120	writeb(BOOT_FROM_RAM \| EXTERNAL_BUS_OFF \| p->RIOHosts[p->RIONumHosts].Mode \| INTERRUPT_DISABLE,
	121	&p->RIOHosts[p->RIONumHosts].Control);
	122	writeb(0xFF, &p->RIOHosts[p->RIONumHosts].ResetInt);
1da177e4	123	p->RIOHosts[p->RIONumHosts].UniqueNum =
00d83a54 AC	124	((readb(&p->RIOHosts[p->RIONumHosts].Unique[0])&0xFF)<<0)\|
	125	((readb(&p->RIOHosts[p->RIONumHosts].Unique[1])&0xFF)<<8)\|
	126	((readb(&p->RIOHosts[p->RIONumHosts].Unique[2])&0xFF)<<16)\|
	127	((readb(&p->RIOHosts[p->RIONumHosts].Unique[3])&0xFF)<<24);
1da177e4 LT	128	rio_dprintk (RIO_DEBUG_INIT, "RIO-init: Uniquenum 0x%x\n",p->RIOHosts[p->RIONumHosts].UniqueNum);
	129
	130	p->RIONumHosts++;
	131	rio_dprintk (RIO_DEBUG_INIT, "RIO-init: Tests Passed at 0x%x\n", Base);
	132	return(1);
	133	}
1da177e4	134
00d83a54	135	static u8 val[] = {
1da177e4 LT	136	#ifdef VERY_LONG_TEST
	137	0x00, 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80,
	138	0xa5, 0xff, 0x5a, 0x00, 0xff, 0xc9, 0x36,
	139	#endif
	140	0xff, 0x00, 0x00 };
	141
	142	#define TEST_END sizeof(val)
	143
	144	/*
	145	** RAM test a board.
	146	** Nothing too complicated, just enough to check it out.
	147	*/
d886cb58	148	int RIOBoardTest(unsigned long paddr, void __iomem *caddr, unsigned char type, int slot)
1da177e4	149	{
d886cb58 AV	150	struct DpRam __iomem *DpRam = caddr;
d886cb58 AV	151	void __iomem *ram[4];
1da177e4 LT	152	int size[4];
	153	int op, bank;
	154	int nbanks;
	155
554b7c80	156	rio_dprintk (RIO_DEBUG_INIT, "RIO-init: Reset host type=%d, DpRam=%p, slot=%d\n",
00d83a54	157	type, DpRam, slot);
1da177e4 LT	158
	159	RIOHostReset(type, DpRam, slot);
	160
	161	/*
	162	** Scrub the memory. This comes in several banks:
	163	** DPsram1 - 7000h bytes
	164	** DPsram2 - 200h bytes
	165	** DPsram3 - 7000h bytes
	166	** scratch - 1000h bytes
	167	*/
	168
	169	rio_dprintk (RIO_DEBUG_INIT, "RIO-init: Setup ram/size arrays\n");
	170
	171	size[0] = DP_SRAM1_SIZE;
	172	size[1] = DP_SRAM2_SIZE;
	173	size[2] = DP_SRAM3_SIZE;
	174	size[3] = DP_SCRATCH_SIZE;
	175
d886cb58 AV	176	ram[0] = DpRam->DpSram1;
	177	ram[1] = DpRam->DpSram2;
	178	ram[2] = DpRam->DpSram3;
1da177e4 LT	179	nbanks = (type == RIO_PCI) ? 3 : 4;
1da177e4 LT	180	if (nbanks == 4)
d886cb58	181	ram[3] = DpRam->DpScratch;
1da177e4 LT	182
	183
	184	if (nbanks == 3) {
554b7c80	185	rio_dprintk (RIO_DEBUG_INIT, "RIO-init: Memory: %p(0x%x), %p(0x%x), %p(0x%x)\n",
00d83a54	186	ram[0], size[0], ram[1], size[1], ram[2], size[2]);
1da177e4	187	} else {
554b7c80	188	rio_dprintk (RIO_DEBUG_INIT, "RIO-init: %p(0x%x), %p(0x%x), %p(0x%x), %p(0x%x)\n",
00d83a54	189	ram[0], size[0], ram[1], size[1], ram[2], size[2], ram[3], size[3]);
1da177e4 LT	190	}
	191
	192	/*
	193	** This scrub operation will test for crosstalk between
	194	** banks. TEST_END is a magic number, and relates to the offset
	195	** within the 'val' array used by Scrub.
	196	*/
	197	for (op=0; op<TEST_END; op++) {
	198	for (bank=0; bank<nbanks; bank++) {
d886cb58	199	if (RIOScrub(op, ram[bank], size[bank]) == RIO_FAIL) {
1da177e4 LT	200	rio_dprintk (RIO_DEBUG_INIT, "RIO-init: RIOScrub band %d, op %d failed\n",
	201	bank, op);
	202	return RIO_FAIL;
	203	}
	204	}
	205	}
	206
	207	rio_dprintk (RIO_DEBUG_INIT, "Test completed\n");
554b7c80	208	return 0;
1da177e4 LT	209	}
	210
	211
	212	/*
	213	** Scrub an area of RAM.
	214	** Define PRETEST and POSTTEST for a more thorough checking of the
	215	** state of the memory.
	216	** Call with op set to an index into the above 'val' array to determine
	217	** which value will be written into memory.
	218	** Call with op set to zero means that the RAM will not be read and checked
	219	** before it is written.
0779bf2d	220	** Call with op not zero and the RAM will be read and compared with val[op-1]
1da177e4 LT	221	** to check that the data from the previous phase was retained.
1da177e4 LT	222	*/
00d83a54	223
d886cb58	224	static int RIOScrub(int op, u8 __iomem *ram, int size)
1da177e4	225	{
00d83a54	226	int off;
1da177e4 LT	227	unsigned char oldbyte;
	228	unsigned char newbyte;
	229	unsigned char invbyte;
	230	unsigned short oldword;
	231	unsigned short newword;
	232	unsigned short invword;
	233	unsigned short swapword;
	234
	235	if (op) {
	236	oldbyte = val[op-1];
	237	oldword = oldbyte \| (oldbyte<<8);
	238	} else
	239	oldbyte = oldword = 0; /* Tell the compiler we've initilalized them. */
	240	newbyte = val[op];
	241	newword = newbyte \| (newbyte<<8);
	242	invbyte = ~newbyte;
	243	invword = invbyte \| (invbyte<<8);
	244
	245	/*
	246	** Check that the RAM contains the value that should have been left there
	247	** by the previous test (not applicable for pass zero)
	248	*/
	249	if (op) {
	250	for (off=0; off<size; off++) {
00d83a54 AC	251	if (readb(ram + off) != oldbyte) {
00d83a54 AC	252	rio_dprintk (RIO_DEBUG_INIT, "RIO-init: Byte Pre Check 1: BYTE at offset 0x%x should have been=%x, was=%x\n", off, oldbyte, readb(ram + off));
1da177e4 LT	253	return RIO_FAIL;
	254	}
	255	}
	256	for (off=0; off<size; off+=2) {
00d83a54 AC	257	if (readw(ram + off) != oldword) {
	258	rio_dprintk (RIO_DEBUG_INIT, "RIO-init: Word Pre Check: WORD at offset 0x%x should have been=%x, was=%x\n",off,oldword, readw(ram + off));
	259	rio_dprintk (RIO_DEBUG_INIT, "RIO-init: Word Pre Check: BYTE at offset 0x%x is %x BYTE at offset 0x%x is %x\n", off, readb(ram + off), off+1, readb(ram+off+1));
1da177e4 LT	260	return RIO_FAIL;
	261	}
	262	}
	263	}
	264
	265	/*
	266	** Now write the INVERSE of the test data into every location, using
	267	** BYTE write operations, first checking before each byte is written
	268	** that the location contains the old value still, and checking after
	269	** the write that the location contains the data specified - this is
	270	** the BYTE read/write test.
	271	*/
	272	for (off=0; off<size; off++) {
00d83a54 AC	273	if (op && (readb(ram + off) != oldbyte)) {
00d83a54 AC	274	rio_dprintk (RIO_DEBUG_INIT, "RIO-init: Byte Pre Check 2: BYTE at offset 0x%x should have been=%x, was=%x\n", off, oldbyte, readb(ram + off));
1da177e4 LT	275	return RIO_FAIL;
1da177e4 LT	276	}
00d83a54 AC	277	writeb(invbyte, ram + off);
	278	if (readb(ram + off) != invbyte) {
	279	rio_dprintk (RIO_DEBUG_INIT, "RIO-init: Byte Inv Check: BYTE at offset 0x%x should have been=%x, was=%x\n", off, invbyte, readb(ram + off));
1da177e4 LT	280	return RIO_FAIL;
	281	}
	282	}
	283
	284	/*
	285	** now, use WORD operations to write the test value into every location,
	286	** check as before that the location contains the previous test value
	287	** before overwriting, and that it contains the data value written
	288	** afterwards.
	289	** This is the WORD operation test.
	290	*/
	291	for (off=0; off<size; off+=2) {
00d83a54 AC	292	if (readw(ram + off) != invword) {
	293	rio_dprintk (RIO_DEBUG_INIT, "RIO-init: Word Inv Check: WORD at offset 0x%x should have been=%x, was=%x\n", off, invword, readw(ram + off));
	294	rio_dprintk (RIO_DEBUG_INIT, "RIO-init: Word Inv Check: BYTE at offset 0x%x is %x BYTE at offset 0x%x is %x\n", off, readb(ram + off), off+1, readb(ram+off+1));
1da177e4 LT	295	return RIO_FAIL;
	296	}
	297
00d83a54 AC	298	writew(newword, ram + off);
	299	if ( readw(ram + off) != newword ) {
	300	rio_dprintk (RIO_DEBUG_INIT, "RIO-init: Post Word Check 1: WORD at offset 0x%x should have been=%x, was=%x\n", off, newword, readw(ram + off));
	301	rio_dprintk (RIO_DEBUG_INIT, "RIO-init: Post Word Check 1: BYTE at offset 0x%x is %x BYTE at offset 0x%x is %x\n", off, readb(ram + off), off+1, readb(ram + off + 1));
1da177e4 LT	302	return RIO_FAIL;
	303	}
	304	}
	305
	306	/*
	307	** now run through the block of memory again, first in byte mode
	308	** then in word mode, and check that all the locations contain the
	309	** required test data.
	310	*/
	311	for (off=0; off<size; off++) {
00d83a54 AC	312	if (readb(ram + off) != newbyte) {
00d83a54 AC	313	rio_dprintk (RIO_DEBUG_INIT, "RIO-init: Post Byte Check: BYTE at offset 0x%x should have been=%x, was=%x\n", off, newbyte, readb(ram + off));
1da177e4 LT	314	return RIO_FAIL;
	315	}
	316	}
	317
	318	for (off=0; off<size; off+=2) {
00d83a54 AC	319	if (readw(ram + off) != newword ) {
	320	rio_dprintk (RIO_DEBUG_INIT, "RIO-init: Post Word Check 2: WORD at offset 0x%x should have been=%x, was=%x\n", off, newword, readw(ram + off));
	321	rio_dprintk (RIO_DEBUG_INIT, "RIO-init: Post Word Check 2: BYTE at offset 0x%x is %x BYTE at offset 0x%x is %x\n", off, readb(ram + off), off+1, readb(ram + off + 1));
1da177e4 LT	322	return RIO_FAIL;
	323	}
	324	}
	325
	326	/*
	327	** time to check out byte swapping errors
	328	*/
	329	swapword = invbyte \| (newbyte << 8);
	330
	331	for (off=0; off<size; off+=2) {
00d83a54 AC	332	writeb(invbyte, &ram[off]);
00d83a54 AC	333	writeb(newbyte, &ram[off+1]);
1da177e4 LT	334	}
	335
	336	for ( off=0; off<size; off+=2 ) {
00d83a54 AC	337	if (readw(ram + off) != swapword) {
	338	rio_dprintk (RIO_DEBUG_INIT, "RIO-init: SwapWord Check 1: WORD at offset 0x%x should have been=%x, was=%x\n", off, swapword, readw(ram + off));
	339	rio_dprintk (RIO_DEBUG_INIT, "RIO-init: SwapWord Check 1: BYTE at offset 0x%x is %x BYTE at offset 0x%x is %x\n", off, readb(ram + off), off+1, readb(ram + off + 1));
1da177e4 LT	340	return RIO_FAIL;
1da177e4 LT	341	}
00d83a54	342	writew(~swapword, ram + off);
1da177e4 LT	343	}
	344
	345	for (off=0; off<size; off+=2) {
00d83a54 AC	346	if (readb(ram + off) != newbyte) {
00d83a54 AC	347	rio_dprintk (RIO_DEBUG_INIT, "RIO-init: SwapWord Check 2: BYTE at offset 0x%x should have been=%x, was=%x\n", off, newbyte, readb(ram + off));
1da177e4 LT	348	return RIO_FAIL;
1da177e4 LT	349	}
00d83a54 AC	350	if (readb(ram + off + 1) != invbyte) {
00d83a54 AC	351	rio_dprintk (RIO_DEBUG_INIT, "RIO-init: SwapWord Check 2: BYTE at offset 0x%x should have been=%x, was=%x\n", off+1, invbyte, readb(ram + off + 1));
1da177e4 LT	352	return RIO_FAIL;
1da177e4 LT	353	}
00d83a54	354	writew(newword, ram + off);
1da177e4	355	}
554b7c80	356	return 0;
1da177e4 LT	357	}
1da177e4 LT	358
1da177e4	359
00d83a54	360	int RIODefaultName(struct rio_info p, struct Host HostP, unsigned int UnitId)
1da177e4	361	{
00d83a54	362	memcpy(HostP->Mapping[UnitId].Name, "UNKNOWN RTA X-XX", 17);
1da177e4 LT	363	HostP->Mapping[UnitId].Name[12]='1'+(HostP-p->RIOHosts);
	364	if ((UnitId+1) > 9) {
	365	HostP->Mapping[UnitId].Name[14]='0'+((UnitId+1)/10);
	366	HostP->Mapping[UnitId].Name[15]='0'+((UnitId+1)%10);
	367	}
	368	else {
	369	HostP->Mapping[UnitId].Name[14]='1'+UnitId;
	370	HostP->Mapping[UnitId].Name[15]=0;
	371	}
	372	return 0;
	373	}
	374
	375	#define RIO_RELEASE "Linux"
	376	#define RELEASE_ID "1.0"
	377
1da177e4 LT	378	static struct rioVersion stVersion;
1da177e4 LT	379
00d83a54	380	struct rioVersion *RIOVersid(void)
1da177e4 LT	381	{
	382	strlcpy(stVersion.version, "RIO driver for linux V1.0",
	383	sizeof(stVersion.version));
	384	strlcpy(stVersion.buildDate, __DATE__,
	385	sizeof(stVersion.buildDate));
	386
	387	return &stVersion;
	388	}
	389
d886cb58	390	void RIOHostReset(unsigned int Type, struct DpRam __iomem *DpRamP, unsigned int Slot)
1da177e4 LT	391	{
	392	/*
	393	** Reset the Tpu
	394	*/
	395	rio_dprintk (RIO_DEBUG_INIT, "RIOHostReset: type 0x%x", Type);
	396	switch ( Type ) {
00d83a54 AC	397	case RIO_AT:
	398	rio_dprintk (RIO_DEBUG_INIT, " (RIO_AT)\n");
	399	writeb(BOOT_FROM_RAM \| EXTERNAL_BUS_OFF \| INTERRUPT_DISABLE \| BYTE_OPERATION \|
	400	SLOW_LINKS \| SLOW_AT_BUS, &DpRamP->DpControl);
	401	writeb(0xFF, &DpRamP->DpResetTpu);
	402	udelay(3);
1da177e4	403	rio_dprintk (RIO_DEBUG_INIT, "RIOHostReset: Don't know if it worked. Try reset again\n");
00d83a54 AC	404	writeb(BOOT_FROM_RAM \| EXTERNAL_BUS_OFF \| INTERRUPT_DISABLE \|
	405	BYTE_OPERATION \| SLOW_LINKS \| SLOW_AT_BUS, &DpRamP->DpControl);
	406	writeb(0xFF, &DpRamP->DpResetTpu);
	407	udelay(3);
	408	break;
1da177e4 LT	409	case RIO_PCI:
1da177e4 LT	410	rio_dprintk (RIO_DEBUG_INIT, " (RIO_PCI)\n");
00d83a54 AC	411	writeb(RIO_PCI_BOOT_FROM_RAM, &DpRamP->DpControl);
	412	writeb(0xFF, &DpRamP->DpResetInt);
	413	writeb(0xFF, &DpRamP->DpResetTpu);
97998d8f	414	udelay(100);
1da177e4	415	break;
1da177e4 LT	416	default:
	417	rio_dprintk (RIO_DEBUG_INIT, " (UNKNOWN)\n");
	418	break;
	419	}
	420	return;
	421	}