[patch 3/5] Staging: vme: add Universe I/II bridge driver

[Greg K-H <gregkh@suse.de>]

[-- Attachment #1: staging-vme-add-universe-i-ii-bridge-driver.patch --]
[-- Type: text/plain, Size: 63575 bytes --]

From: Martyn Welch <martyn.welch@gefanuc.com>

Currently this code doesn't compile, so it is disabled.

That should be fixed up...

Signed-off-by: Martyn Welch <martyn.welch@gefanuc.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

---
 drivers/staging/vme/Kconfig                |    2 
 drivers/staging/vme/Makefile               |    2 
 drivers/staging/vme/bridges/Kconfig        |    8 
 drivers/staging/vme/bridges/Makefile       |    1 
 drivers/staging/vme/bridges/vme_ca91cx42.c | 1811 +++++++++++++++++++++++++++++
 drivers/staging/vme/bridges/vme_ca91cx42.h |  403 ++++++
 6 files changed, 2225 insertions(+), 2 deletions(-)

--- /dev/null
+++ b/drivers/staging/vme/bridges/Kconfig
@@ -0,0 +1,8 @@
+comment "VME Bridge Drivers"
+
+config VME_CA91CX42
+	tristate "Universe I/II"
+	depends on BROKEN
+	help
+	 If you say Y here you get support for the Tundra CA91C042 (Universe I)
+	 and CA91C142 (Universe II) VME bridge chips.
--- /dev/null
+++ b/drivers/staging/vme/bridges/Makefile
@@ -0,0 +1 @@
+obj-$(CONFIG_VME_CA91CX42)	+= vme_ca91cx42.o
--- /dev/null
+++ b/drivers/staging/vme/bridges/vme_ca91cx42.c
@@ -0,0 +1,1811 @@
+/*
+ * Support for the Tundra Universe I/II VME-PCI Bridge Chips
+ *
+ * Author: Martyn Welch <martyn.welch@gefanuc.com>
+ * Copyright 2008 GE Fanuc Intelligent Platforms Embedded Systems, Inc.
+ *
+ * Based on work by Tom Armistead and Ajit Prem
+ * Copyright 2004 Motorola Inc.
+ *
+ * Derived from ca91c042.c by Michael Wyrick
+ *
+ * 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.
+ */
+
+#include <linux/version.h>
+#include <linux/module.h>
+#include <linux/mm.h>
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <linux/proc_fs.h>
+#include <linux/pci.h>
+#include <linux/dma-mapping.h>
+#include <linux/poll.h>
+#include <linux/interrupt.h>
+#include <linux/spinlock.h>
+#include <asm/time.h>
+#include <asm/io.h>
+#include <asm/uaccess.h>
+
+#include "../vme.h"
+#include "../vme_bridge.h"
+#include "vme_ca91cx42.h"
+
+extern struct vmeSharedData *vmechip_interboard_data;
+extern dma_addr_t vmechip_interboard_datap;
+extern const int vmechip_revision;
+extern const int vmechip_devid;
+extern const int vmechip_irq;
+extern int vmechip_irq_overhead_ticks;
+extern char *vmechip_baseaddr;
+extern const int vme_slotnum;
+extern int vme_syscon;
+extern unsigned int out_image_va[];
+extern unsigned int vme_irqlog[8][0x100];
+
+static int outCTL[] = { LSI0_CTL, LSI1_CTL, LSI2_CTL, LSI3_CTL,
+	LSI4_CTL, LSI5_CTL, LSI6_CTL, LSI7_CTL
+};
+
+static int outBS[] = { LSI0_BS, LSI1_BS, LSI2_BS, LSI3_BS,
+	LSI4_BS, LSI5_BS, LSI6_BS, LSI7_BS
+};
+
+static int outBD[] = { LSI0_BD, LSI1_BD, LSI2_BD, LSI3_BD,
+	LSI4_BD, LSI5_BD, LSI6_BD, LSI7_BD
+};
+
+static int outTO[] = { LSI0_TO, LSI1_TO, LSI2_TO, LSI3_TO,
+	LSI4_TO, LSI5_TO, LSI6_TO, LSI7_TO
+};
+
+static int inCTL[] = { VSI0_CTL, VSI1_CTL, VSI2_CTL, VSI3_CTL,
+	VSI4_CTL, VSI5_CTL, VSI6_CTL, VSI7_CTL
+};
+
+static int inBS[] = { VSI0_BS, VSI1_BS, VSI2_BS, VSI3_BS,
+	VSI4_BS, VSI5_BS, VSI6_BS, VSI7_BS
+};
+
+static int inBD[] = { VSI0_BD, VSI1_BD, VSI2_BD, VSI3_BD,
+	VSI4_BD, VSI5_BD, VSI6_BD, VSI7_BD
+};
+
+static int inTO[] = { VSI0_TO, VSI1_TO, VSI2_TO, VSI3_TO,
+	VSI4_TO, VSI5_TO, VSI6_TO, VSI7_TO
+};
+static int vmevec[7] = { V1_STATID, V2_STATID, V3_STATID, V4_STATID,
+	V5_STATID, V6_STATID, V7_STATID
+};
+
+struct interrupt_counters {
+	unsigned int acfail;
+	unsigned int sysfail;
+	unsigned int sw_int;
+	unsigned int sw_iack;
+	unsigned int verr;
+	unsigned int lerr;
+	unsigned int lm;
+	unsigned int mbox;
+	unsigned int dma;
+	unsigned int virq[7];
+	unsigned int vown;
+};
+
+extern wait_queue_head_t dma_queue[];
+extern wait_queue_head_t lm_queue;
+extern wait_queue_head_t mbox_queue;
+
+extern int tb_speed;
+
+unsigned int uni_irq_time;
+unsigned int uni_dma_irq_time;
+unsigned int uni_lm_event;
+
+static spinlock_t lm_lock = SPIN_LOCK_UNLOCKED;
+
+static struct interrupt_counters Interrupt_counters = { 0, 0,
+	0, 0, 0, 0,
+	0, 0, 0,
+	{0, 0, 0, 0, 0, 0, 0},
+	0
+};
+
+#define read_register(offset) readl(vmechip_baseaddr + offset)
+#define write_register(value,offset) writel(value, vmechip_baseaddr + offset)
+#define read_register_word(offset) readw(vmechip_baseaddr + offset)
+#define write_register_word(value,offset) writew(value, vmechip_baseaddr + offset)
+
+int uni_procinfo(char *buf)
+{
+	char *p;
+
+	p = buf;
+
+	p += sprintf(p, "\n");
+	{
+		unsigned long misc_ctl;
+
+		misc_ctl = read_register(MISC_CTL);
+		p += sprintf(p, "MISC_CTL:\t\t\t0x%08lx\n", misc_ctl);
+		p += sprintf(p, "VME Bus Time Out:\t\t");
+		switch ((misc_ctl & UNIV_BM_MISC_CTL_VBTO) >>
+			UNIV_OF_MISC_CTL_VBTO) {
+		case 0x0:
+			p += sprintf(p, "Disabled\n");
+			break;
+		case 0x1:
+			p += sprintf(p, "16 us\n");
+			break;
+		case 0x2:
+			p += sprintf(p, "32 us\n");
+			break;
+		case 0x3:
+			p += sprintf(p, "64 us\n");
+			break;
+		case 0x4:
+			p += sprintf(p, "128 us\n");
+			break;
+		case 0x5:
+			p += sprintf(p, "256 us\n");
+			break;
+		case 0x6:
+			p += sprintf(p, "512 us\n");
+			break;
+		case 0x7:
+			p += sprintf(p, "1024 us\n");
+			break;
+		default:
+			p += sprintf(p, "Reserved Value, Undefined\n");
+		}
+		p += sprintf(p, "VME Arbitration Time Out:\t");
+		switch ((misc_ctl & UNIV_BM_MISC_CTL_VARBTO) >>
+			UNIV_OF_MISC_CTL_VARBTO) {
+		case 0x0:
+			p += sprintf(p, "Disabled");
+			break;
+		case 0x1:
+			p += sprintf(p, "16 us");
+			break;
+		case 0x2:
+			p += sprintf(p, "256 us");
+			break;
+		default:
+			p += sprintf(p, "Reserved Value, Undefined");
+		}
+		if (misc_ctl & UNIV_BM_MISC_CTL_VARB)
+			p += sprintf(p, ", Priority Arbitration\n");
+		else
+			p += sprintf(p, ", Round Robin Arbitration\n");
+		p += sprintf(p, "\n");
+	}
+
+	{
+		unsigned int lmisc;
+		unsigned int crt;
+		unsigned int cwt;
+
+		lmisc = read_register(LMISC);
+		p += sprintf(p, "LMISC:\t\t\t\t0x%08x\n", lmisc);
+		crt = (lmisc & UNIV_BM_LMISC_CRT) >> UNIV_OF_LMISC_CRT;
+		cwt = (lmisc & UNIV_BM_LMISC_CWT) >> UNIV_OF_LMISC_CWT;
+		p += sprintf(p, "Coupled Request Timer:\t\t");
+		switch (crt) {
+		case 0x0:
+			p += sprintf(p, "Disabled\n");
+			break;
+		case 0x1:
+			p += sprintf(p, "128 us\n");
+			break;
+		case 0x2:
+			p += sprintf(p, "256 us\n");
+			break;
+		case 0x3:
+			p += sprintf(p, "512 us\n");
+			break;
+		case 0x4:
+			p += sprintf(p, "1024 us\n");
+			break;
+		case 0x5:
+			p += sprintf(p, "2048 us\n");
+			break;
+		case 0x6:
+			p += sprintf(p, "4096 us\n");
+			break;
+		default:
+			p += sprintf(p, "Reserved\n");
+		}
+		p += sprintf(p, "Coupled Window Timer:\t\t");
+		switch (cwt) {
+		case 0x0:
+			p += sprintf(p, "Disabled\n");
+			break;
+		case 0x1:
+			p += sprintf(p, "16 PCI Clocks\n");
+			break;
+		case 0x2:
+			p += sprintf(p, "32 PCI Clocks\n");
+			break;
+		case 0x3:
+			p += sprintf(p, "64 PCI Clocks\n");
+			break;
+		case 0x4:
+			p += sprintf(p, "128 PCI Clocks\n");
+			break;
+		case 0x5:
+			p += sprintf(p, "256 PCI Clocks\n");
+			break;
+		case 0x6:
+			p += sprintf(p, "512 PCI Clocks\n");
+			break;
+		default:
+			p += sprintf(p, "Reserved\n");
+		}
+		p += sprintf(p, "\n");
+	}
+	{
+		unsigned int mast_ctl;
+
+		mast_ctl = read_register(MAST_CTL);
+		p += sprintf(p, "MAST_CTL:\t\t\t0x%08x\n", mast_ctl);
+		{
+			int retries;
+
+			retries = ((mast_ctl & UNIV_BM_MAST_CTL_MAXRTRY)
+				   >> UNIV_OF_MAST_CTL_MAXRTRY) * 64;
+			p += sprintf(p, "Max PCI Master Retries:\t\t");
+			if (retries)
+				p += sprintf(p, "%d\n", retries);
+			else
+				p += sprintf(p, "Forever\n");
+		}
+
+		p += sprintf(p, "Posted Write Transfer Count:\t");
+		switch ((mast_ctl & UNIV_BM_MAST_CTL_PWON) >>
+			UNIV_OF_MAST_CTL_PWON) {
+		case 0x0:
+			p += sprintf(p, "128 Bytes\n");
+			break;
+		case 0x1:
+			p += sprintf(p, "256 Bytes\n");
+			break;
+		case 0x2:
+			p += sprintf(p, "512 Bytes\n");
+			break;
+		case 0x3:
+			p += sprintf(p, "1024 Bytes\n");
+			break;
+		case 0x4:
+			p += sprintf(p, "2048 Bytes\n");
+			break;
+		case 0x5:
+			p += sprintf(p, "4096 Bytes\n");
+			break;
+		default:
+			p += sprintf(p, "Undefined\n");
+		}
+
+		p += sprintf(p, "VMEbus Request Level:\t\t");
+		switch ((mast_ctl & UNIV_BM_MAST_CTL_VRL) >>
+			UNIV_OF_MAST_CTL_VRL) {
+		case 0x0:
+			p += sprintf(p, "Level 0\n");
+		case 0x1:
+			p += sprintf(p, "Level 1\n");
+		case 0x2:
+			p += sprintf(p, "Level 2\n");
+		case 0x3:
+			p += sprintf(p, "Level 3\n");
+		}
+		p += sprintf(p, "VMEbus Request Mode:\t\t");
+		if (mast_ctl & UNIV_BM_MAST_CTL_VRM)
+			p += sprintf(p, "Fair Request Mode\n");
+		else
+			p += sprintf(p, "Demand Request Mode\n");
+		p += sprintf(p, "VMEbus Release Mode:\t\t");
+		if (mast_ctl & UNIV_BM_MAST_CTL_VREL)
+			p += sprintf(p, "Release on Request\n");
+		else
+			p += sprintf(p, "Release when Done\n");
+		p += sprintf(p, "VMEbus Ownership Bit:\t\t");
+		if (mast_ctl & UNIV_BM_MAST_CTL_VOWN)
+			p += sprintf(p, "Acquire and hold VMEbus\n");
+		else
+			p += sprintf(p, "Release VMEbus\n");
+		p += sprintf(p, "VMEbus Ownership Bit Ack:\t");
+		if (mast_ctl & UNIV_BM_MAST_CTL_VOWN_ACK)
+			p += sprintf(p, "Owning VMEbus\n");
+		else
+			p += sprintf(p, "Not Owning VMEbus\n");
+		p += sprintf(p, "\n");
+	}
+	{
+		unsigned int misc_stat;
+
+		misc_stat = read_register(MISC_STAT);
+		p += sprintf(p, "MISC_STAT:\t\t\t0x%08x\n", misc_stat);
+		p += sprintf(p, "Universe BBSY:\t\t\t");
+		if (misc_stat & UNIV_BM_MISC_STAT_MYBBSY)
+			p += sprintf(p, "Negated\n");
+		else
+			p += sprintf(p, "Asserted\n");
+		p += sprintf(p, "Transmit FIFO:\t\t\t");
+		if (misc_stat & UNIV_BM_MISC_STAT_TXFE)
+			p += sprintf(p, "Empty\n");
+		else
+			p += sprintf(p, "Not empty\n");
+		p += sprintf(p, "Receive FIFO:\t\t\t");
+		if (misc_stat & UNIV_BM_MISC_STAT_RXFE)
+			p += sprintf(p, "Empty\n");
+		else
+			p += sprintf(p, "Not Empty\n");
+		p += sprintf(p, "\n");
+	}
+
+	p += sprintf(p, "Latency Timer:\t\t\t%02d Clocks\n\n",
+		     (read_register(UNIV_PCI_MISC0) &
+		      UNIV_BM_PCI_MISC0_LTIMER) >> UNIV_OF_PCI_MISC0_LTIMER);
+
+	{
+		unsigned int lint_en;
+		unsigned int lint_stat;
+
+		lint_en = read_register(LINT_EN);
+		lint_stat = read_register(LINT_STAT);
+
+#define REPORT_IRQ(name,field)     \
+    p += sprintf(p, (lint_en & UNIV_BM_LINT_##name) ? "Enabled" : "Masked"); \
+    p += sprintf(p, ", triggered %d times", Interrupt_counters.field); \
+    p += sprintf(p, (lint_stat & UNIV_BM_LINT_##name) ? ", irq now active\n" : "\n");
+		p += sprintf(p, "ACFAIL Interrupt:\t\t");
+		REPORT_IRQ(ACFAIL, acfail);
+		p += sprintf(p, "SYSFAIL Interrupt:\t\t");
+		REPORT_IRQ(SYSFAIL, sysfail);
+		p += sprintf(p, "SW_INT Interrupt:\t\t");
+		REPORT_IRQ(SW_INT, sw_int);
+		p += sprintf(p, "SW_IACK Interrupt:\t\t");
+		REPORT_IRQ(SW_IACK, sw_iack);
+		p += sprintf(p, "VERR Interrupt:\t\t\t");
+		REPORT_IRQ(VERR, verr);
+		p += sprintf(p, "LERR Interrupt:\t\t\t");
+		REPORT_IRQ(LERR, lerr);
+		p += sprintf(p, "LM Interrupt:\t\t\t");
+		REPORT_IRQ(LM, lm);
+		p += sprintf(p, "MBOX Interrupt:\t\t\t");
+		REPORT_IRQ(MBOX, mbox);
+		p += sprintf(p, "DMA Interrupt:\t\t\t");
+		REPORT_IRQ(DMA, dma);
+		p += sprintf(p, "VIRQ7 Interrupt:\t\t");
+		REPORT_IRQ(VIRQ7, virq[7 - 1]);
+		p += sprintf(p, "VIRQ6 Interrupt:\t\t");
+		REPORT_IRQ(VIRQ6, virq[6 - 1]);
+		p += sprintf(p, "VIRQ5 Interrupt:\t\t");
+		REPORT_IRQ(VIRQ5, virq[5 - 1]);
+		p += sprintf(p, "VIRQ4 Interrupt:\t\t");
+		REPORT_IRQ(VIRQ4, virq[4 - 1]);
+		p += sprintf(p, "VIRQ3 Interrupt:\t\t");
+		REPORT_IRQ(VIRQ3, virq[3 - 1]);
+		p += sprintf(p, "VIRQ2 Interrupt:\t\t");
+		REPORT_IRQ(VIRQ2, virq[2 - 1]);
+		p += sprintf(p, "VIRQ1 Interrupt:\t\t");
+		REPORT_IRQ(VIRQ1, virq[1 - 1]);
+		p += sprintf(p, "VOWN Interrupt:\t\t\t");
+		REPORT_IRQ(VOWN, vown);
+		p += sprintf(p, "\n");
+#undef REPORT_IRQ
+	}
+	{
+		unsigned long vrai_ctl;
+
+		vrai_ctl = read_register(VRAI_CTL);
+		if (vrai_ctl & UNIV_BM_VRAI_CTL_EN) {
+			unsigned int vrai_bs;
+
+			vrai_bs = read_register(VRAI_BS);
+			p += sprintf(p,
+				     "VME Register Image:\t\tEnabled at VME-Address 0x%x\n",
+				     vrai_bs);
+		} else
+			p += sprintf(p, "VME Register Image:\t\tDisabled\n");
+	}
+	{
+		unsigned int slsi;
+
+		slsi = read_register(SLSI);
+		if (slsi & UNIV_BM_SLSI_EN) {
+			/* Not implemented */
+		} else {
+			p += sprintf(p, "Special PCI Slave Image:\tDisabled\n");
+		}
+	}
+	{
+		int i;
+
+		for (i = 0; i < (vmechip_revision > 0 ? 8 : 4); i++) {
+			unsigned int ctl, bs, bd, to, vstart, vend;
+
+			ctl = readl(vmechip_baseaddr + outCTL[i]);
+			bs = readl(vmechip_baseaddr + outBS[i]);
+			bd = readl(vmechip_baseaddr + outBD[i]);
+			to = readl(vmechip_baseaddr + outTO[i]);
+
+			vstart = bs + to;
+			vend = bd + to;
+
+			p += sprintf(p, "PCI Slave Image %d:\t\t", i);
+			if (ctl & UNIV_BM_LSI_CTL_EN) {
+				p += sprintf(p, "Enabled");
+				if (ctl & UNIV_BM_LSI_CTL_PWEN)
+					p += sprintf(p,
+						     ", Posted Write Enabled\n");
+				else
+					p += sprintf(p, "\n");
+				p += sprintf(p,
+					     "\t\t\t\tPCI Addresses from 0x%x to 0x%x\n",
+					     bs, bd);
+				p += sprintf(p,
+					     "\t\t\t\tVME Addresses from 0x%x to 0x%x\n",
+					     vstart, vend);
+			} else
+				p += sprintf(p, "Disabled\n");
+		}
+		p += sprintf(p, "\n");
+	}
+	{
+		int i;
+		for (i = 0; i < (vmechip_revision > 0 ? 8 : 4); i++) {
+			unsigned int ctl, bs, bd, to, vstart, vend;
+
+			ctl = readl(vmechip_baseaddr + inCTL[i]);
+			bs = readl(vmechip_baseaddr + inBS[i]);
+			bd = readl(vmechip_baseaddr + inBD[i]);
+			to = readl(vmechip_baseaddr + inTO[i]);
+			vstart = bs + to;
+			vend = bd + to;
+			p += sprintf(p, "VME Slave Image %d:\t\t", i);
+			if (ctl & UNIV_BM_LSI_CTL_EN) {
+				p += sprintf(p, "Enabled");
+				if (ctl & UNIV_BM_LSI_CTL_PWEN)
+					p += sprintf(p,
+						     ", Posted Write Enabled\n");
+				else
+					p += sprintf(p, "\n");
+				p += sprintf(p,
+					     "\t\t\t\tVME Addresses from 0x%x to 0x%x\n",
+					     bs, bd);
+				p += sprintf(p,
+					     "\t\t\t\tPCI Addresses from 0x%x to 0x%x\n",
+					     vstart, vend);
+			} else
+				p += sprintf(p, "Disabled\n");
+		}
+	}
+
+	return p - buf;
+}
+
+//----------------------------------------------------------------------------
+//  uni_bus_error_chk()
+//----------------------------------------------------------------------------
+int uni_bus_error_chk(int clrflag)
+{
+	int tmp;
+	tmp = readl(vmechip_baseaddr + PCI_COMMAND);
+	if (tmp & 0x08000000) {	// S_TA is Set
+		if (clrflag)
+			writel(tmp | 0x08000000,
+			       vmechip_baseaddr + PCI_COMMAND);
+		return (1);
+	}
+	return (0);
+}
+
+//-----------------------------------------------------------------------------
+// Function   : DMA_uni_irqhandler
+// Inputs     : void
+// Outputs    : void
+// Description: Saves DMA completion timestamp and then wakes up DMA queue
+//-----------------------------------------------------------------------------
+static void DMA_uni_irqhandler(void)
+{
+	uni_dma_irq_time = uni_irq_time;
+	wake_up(&dma_queue[0]);
+}
+
+//-----------------------------------------------------------------------------
+// Function   : LERR_uni_irqhandler
+// Inputs     : void
+// Outputs    : void
+// Description:
+//-----------------------------------------------------------------------------
+static void LERR_uni_irqhandler(void)
+{
+	int val;
+
+	val = readl(vmechip_baseaddr + DGCS);
+
+	if (!(val & 0x00000800)) {
+		printk(KERN_ERR
+		       "ca91c042: LERR_uni_irqhandler DMA Read Error DGCS=%08X\n",
+		       val);
+
+	}
+}
+
+//-----------------------------------------------------------------------------
+// Function   : VERR_uni_irqhandler
+// Inputs     : void
+// Outputs    : void
+// Description:
+//-----------------------------------------------------------------------------
+static void VERR_uni_irqhandler(void)
+{
+	int val;
+
+	val = readl(vmechip_baseaddr + DGCS);
+
+	if (!(val & 0x00000800)) {
+		printk(KERN_ERR
+		       "ca91c042: VERR_uni_irqhandler DMA Read Error DGCS=%08X\n",
+		       val);
+	}
+
+}
+
+//-----------------------------------------------------------------------------
+// Function   : MB_uni_irqhandler
+// Inputs     : void
+// Outputs    : void
+// Description:
+//-----------------------------------------------------------------------------
+static void MB_uni_irqhandler(int mbox_mask)
+{
+	if (vmechip_irq_overhead_ticks != 0) {
+		wake_up(&mbox_queue);
+	}
+}
+
+//-----------------------------------------------------------------------------
+// Function   : LM_uni_irqhandler
+// Inputs     : void
+// Outputs    : void
+// Description:
+//-----------------------------------------------------------------------------
+static void LM_uni_irqhandler(int lm_mask)
+{
+	uni_lm_event = lm_mask;
+	wake_up(&lm_queue);
+}
+
+//-----------------------------------------------------------------------------
+// Function   : VIRQ_uni_irqhandler
+// Inputs     : void
+// Outputs    : void
+// Description:
+//-----------------------------------------------------------------------------
+static void VIRQ_uni_irqhandler(int virq_mask)
+{
+	int iackvec, i;
+
+	for (i = 7; i > 0; i--) {
+		if (virq_mask & (1 << i)) {
+			Interrupt_counters.virq[i - 1]++;
+			iackvec = readl(vmechip_baseaddr + vmevec[i - 1]);
+			vme_irqlog[i][iackvec]++;
+		}
+	}
+}
+
+//-----------------------------------------------------------------------------
+// Function   : uni_irqhandler
+// Inputs     : int irq, void *dev_id, struct pt_regs *regs
+// Outputs    : void
+// Description:
+//-----------------------------------------------------------------------------
+static irqreturn_t uni_irqhandler(int irq, void *dev_id)
+{
+	long stat, enable;
+
+	if (dev_id != vmechip_baseaddr)
+		return IRQ_NONE;
+
+	uni_irq_time = get_tbl();
+
+	stat = readl(vmechip_baseaddr + LINT_STAT);
+	writel(stat, vmechip_baseaddr + LINT_STAT);	// Clear all pending ints
+	enable = readl(vmechip_baseaddr + LINT_EN);
+	stat = stat & enable;
+	if (stat & 0x0100) {
+		Interrupt_counters.dma++;
+		DMA_uni_irqhandler();
+	}
+	if (stat & 0x0200) {
+		Interrupt_counters.lerr++;
+		LERR_uni_irqhandler();
+	}
+	if (stat & 0x0400) {
+		Interrupt_counters.verr++;
+		VERR_uni_irqhandler();
+	}
+	if (stat & 0xF0000) {
+		Interrupt_counters.mbox++;
+		MB_uni_irqhandler((stat & 0xF0000) >> 16);
+	}
+	if (stat & 0xF00000) {
+		Interrupt_counters.lm++;
+		LM_uni_irqhandler((stat & 0xF00000) >> 20);
+	}
+	if (stat & 0x0000FE) {
+		VIRQ_uni_irqhandler(stat & 0x0000FE);
+	}
+	if (stat & UNIV_BM_LINT_ACFAIL) {
+		Interrupt_counters.acfail++;
+	}
+	if (stat & UNIV_BM_LINT_SYSFAIL) {
+		Interrupt_counters.sysfail++;
+	}
+	if (stat & UNIV_BM_LINT_SW_INT) {
+		Interrupt_counters.sw_int++;
+	}
+	if (stat & UNIV_BM_LINT_SW_IACK) {
+		Interrupt_counters.sw_iack++;
+	}
+	if (stat & UNIV_BM_LINT_VOWN) {
+		Interrupt_counters.vown++;
+	}
+
+	return IRQ_HANDLED;
+}
+
+//-----------------------------------------------------------------------------
+// Function   : uni_generate_irq
+// Description:
+//-----------------------------------------------------------------------------
+int uni_generate_irq(virqInfo_t * vmeIrq)
+{
+	int timeout;
+	int looptimeout;
+
+	timeout = vmeIrq->waitTime;
+	if (timeout == 0) {
+		timeout++;	// Wait at least 1 tick...
+	}
+	looptimeout = HZ / 20;	// try for 1/20 second
+
+	vmeIrq->timeOutFlag = 0;
+
+	// Validate & setup vector register.
+	if (vmeIrq->vector & 1) {	// Universe can only generate even vectors
+		return (-EINVAL);
+	}
+	writel(vmeIrq->vector << 24, vmechip_baseaddr + STATID);
+
+	// Assert VMEbus IRQ
+	writel(1 << (vmeIrq->level + 24), vmechip_baseaddr + VINT_EN);
+
+	// Wait for syscon to do iack
+	while (readl(vmechip_baseaddr + VINT_STAT) &
+	       (1 << (vmeIrq->level + 24))) {
+		set_current_state(TASK_INTERRUPTIBLE);
+		schedule_timeout(looptimeout);
+		timeout = timeout - looptimeout;
+		if (timeout <= 0) {
+			vmeIrq->timeOutFlag = 1;
+			break;
+		}
+	}
+
+	// Clear VMEbus IRQ bit
+	writel(0, vmechip_baseaddr + VINT_EN);
+
+	return (0);
+}
+
+//-----------------------------------------------------------------------------
+// Function   : uni_set_arbiter
+// Description:
+//-----------------------------------------------------------------------------
+int uni_set_arbiter(vmeArbiterCfg_t * vmeArb)
+{
+	int temp_ctl = 0;
+	int vbto = 0;
+
+	temp_ctl = readl(vmechip_baseaddr + MISC_CTL);
+	temp_ctl &= 0x00FFFFFF;
+
+	if (vmeArb->globalTimeoutTimer == 0xFFFFFFFF) {
+		vbto = 7;
+	} else if (vmeArb->globalTimeoutTimer > 1024) {
+		return (-EINVAL);
+	} else if (vmeArb->globalTimeoutTimer == 0) {
+		vbto = 0;
+	} else {
+		vbto = 1;
+		while ((16 * (1 << (vbto - 1))) < vmeArb->globalTimeoutTimer) {
+			vbto += 1;
+		}
+	}
+	temp_ctl |= (vbto << 28);
+
+	if (vmeArb->arbiterMode == VME_PRIORITY_MODE) {
+		temp_ctl |= 1 << 26;
+	}
+
+	if (vmeArb->arbiterTimeoutFlag) {
+		temp_ctl |= 2 << 24;
+	}
+
+	writel(temp_ctl, vmechip_baseaddr + MISC_CTL);
+	return (0);
+}
+
+//-----------------------------------------------------------------------------
+// Function   : uni_get_arbiter
+// Description:
+//-----------------------------------------------------------------------------
+int uni_get_arbiter(vmeArbiterCfg_t * vmeArb)
+{
+	int temp_ctl = 0;
+	int vbto = 0;
+
+	temp_ctl = readl(vmechip_baseaddr + MISC_CTL);
+
+	vbto = (temp_ctl >> 28) & 0xF;
+	if (vbto != 0) {
+		vmeArb->globalTimeoutTimer = (16 * (1 << (vbto - 1)));
+	}
+
+	if (temp_ctl & (1 << 26)) {
+		vmeArb->arbiterMode = VME_PRIORITY_MODE;
+	} else {
+		vmeArb->arbiterMode = VME_R_ROBIN_MODE;
+	}
+
+	if (temp_ctl & (3 << 24)) {
+		vmeArb->arbiterTimeoutFlag = 1;
+	}
+	return (0);
+}
+
+//-----------------------------------------------------------------------------
+// Function   : uni_set_requestor
+// Description:
+//-----------------------------------------------------------------------------
+int uni_set_requestor(vmeRequesterCfg_t * vmeReq)
+{
+	int temp_ctl = 0;
+
+	temp_ctl = readl(vmechip_baseaddr + MAST_CTL);
+	temp_ctl &= 0xFF0FFFFF;
+
+	if (vmeReq->releaseMode == 1) {
+		temp_ctl |= (1 << 20);
+	}
+
+	if (vmeReq->fairMode == 1) {
+		temp_ctl |= (1 << 21);
+	}
+
+	temp_ctl |= (vmeReq->requestLevel << 22);
+
+	writel(temp_ctl, vmechip_baseaddr + MAST_CTL);
+	return (0);
+}
+
+//-----------------------------------------------------------------------------
+// Function   : uni_get_requestor
+// Description:
+//-----------------------------------------------------------------------------
+int uni_get_requestor(vmeRequesterCfg_t * vmeReq)
+{
+	int temp_ctl = 0;
+
+	temp_ctl = readl(vmechip_baseaddr + MAST_CTL);
+
+	if (temp_ctl & (1 << 20)) {
+		vmeReq->releaseMode = 1;
+	}
+
+	if (temp_ctl & (1 << 21)) {
+		vmeReq->fairMode = 1;
+	}
+
+	vmeReq->requestLevel = (temp_ctl & 0xC00000) >> 22;
+
+	return (0);
+}
+
+//-----------------------------------------------------------------------------
+// Function   : uni_set_in_bound
+// Description:
+//-----------------------------------------------------------------------------
+int uni_set_in_bound(vmeInWindowCfg_t * vmeIn)
+{
+	int temp_ctl = 0;
+
+	// Verify input data
+	if (vmeIn->windowNbr > 7) {
+		return (-EINVAL);
+	}
+	if ((vmeIn->vmeAddrU) || (vmeIn->windowSizeU) || (vmeIn->pciAddrU)) {
+		return (-EINVAL);
+	}
+	if ((vmeIn->vmeAddrL & 0xFFF) ||
+	    (vmeIn->windowSizeL & 0xFFF) || (vmeIn->pciAddrL & 0xFFF)) {
+		return (-EINVAL);
+	}
+
+	if (vmeIn->bcastRespond2esst) {
+		return (-EINVAL);
+	}
+	switch (vmeIn->addrSpace) {
+	case VME_A64:
+	case VME_CRCSR:
+	case VME_USER3:
+	case VME_USER4:
+		return (-EINVAL);
+	case VME_A16:
+		temp_ctl |= 0x00000;
+		break;
+	case VME_A24:
+		temp_ctl |= 0x10000;
+		break;
+	case VME_A32:
+		temp_ctl |= 0x20000;
+		break;
+	case VME_USER1:
+		temp_ctl |= 0x60000;
+		break;
+	case VME_USER2:
+		temp_ctl |= 0x70000;
+		break;
+	}
+
+	// Disable while we are mucking around
+	writel(0x00000000, vmechip_baseaddr + inCTL[vmeIn->windowNbr]);
+	writel(vmeIn->vmeAddrL, vmechip_baseaddr + inBS[vmeIn->windowNbr]);
+	writel(vmeIn->vmeAddrL + vmeIn->windowSizeL,
+	       vmechip_baseaddr + inBD[vmeIn->windowNbr]);
+	writel(vmeIn->pciAddrL - vmeIn->vmeAddrL,
+	       vmechip_baseaddr + inTO[vmeIn->windowNbr]);
+
+	// Setup CTL register.
+	if (vmeIn->wrPostEnable)
+		temp_ctl |= 0x40000000;
+	if (vmeIn->prefetchEnable)
+		temp_ctl |= 0x20000000;
+	if (vmeIn->rmwLock)
+		temp_ctl |= 0x00000040;
+	if (vmeIn->data64BitCapable)
+		temp_ctl |= 0x00000080;
+	if (vmeIn->userAccessType & VME_USER)
+		temp_ctl |= 0x00100000;
+	if (vmeIn->userAccessType & VME_SUPER)
+		temp_ctl |= 0x00200000;
+	if (vmeIn->dataAccessType & VME_DATA)
+		temp_ctl |= 0x00400000;
+	if (vmeIn->dataAccessType & VME_PROG)
+		temp_ctl |= 0x00800000;
+
+	// Write ctl reg without enable
+	writel(temp_ctl, vmechip_baseaddr + inCTL[vmeIn->windowNbr]);
+
+	if (vmeIn->windowEnable)
+		temp_ctl |= 0x80000000;
+
+	writel(temp_ctl, vmechip_baseaddr + inCTL[vmeIn->windowNbr]);
+	return (0);
+}
+
+//-----------------------------------------------------------------------------
+// Function   : uni_get_in_bound
+// Description:
+//-----------------------------------------------------------------------------
+int uni_get_in_bound(vmeInWindowCfg_t * vmeIn)
+{
+	int temp_ctl = 0;
+
+	// Verify input data
+	if (vmeIn->windowNbr > 7) {
+		return (-EINVAL);
+	}
+	// Get Window mappings.
+	vmeIn->vmeAddrL = readl(vmechip_baseaddr + inBS[vmeIn->windowNbr]);
+	vmeIn->pciAddrL = vmeIn->vmeAddrL +
+	    readl(vmechip_baseaddr + inTO[vmeIn->windowNbr]);
+	vmeIn->windowSizeL = readl(vmechip_baseaddr + inBD[vmeIn->windowNbr]) -
+	    vmeIn->vmeAddrL;
+
+	temp_ctl = readl(vmechip_baseaddr + inCTL[vmeIn->windowNbr]);
+
+	// Get Control & BUS attributes
+	if (temp_ctl & 0x40000000)
+		vmeIn->wrPostEnable = 1;
+	if (temp_ctl & 0x20000000)
+		vmeIn->prefetchEnable = 1;
+	if (temp_ctl & 0x00000040)
+		vmeIn->rmwLock = 1;
+	if (temp_ctl & 0x00000080)
+		vmeIn->data64BitCapable = 1;
+	if (temp_ctl & 0x00100000)
+		vmeIn->userAccessType |= VME_USER;
+	if (temp_ctl & 0x00200000)
+		vmeIn->userAccessType |= VME_SUPER;
+	if (temp_ctl & 0x00400000)
+		vmeIn->dataAccessType |= VME_DATA;
+	if (temp_ctl & 0x00800000)
+		vmeIn->dataAccessType |= VME_PROG;
+	if (temp_ctl & 0x80000000)
+		vmeIn->windowEnable = 1;
+
+	switch ((temp_ctl & 0x70000) >> 16) {
+	case 0x0:
+		vmeIn->addrSpace = VME_A16;
+		break;
+	case 0x1:
+		vmeIn->addrSpace = VME_A24;
+		break;
+	case 0x2:
+		vmeIn->addrSpace = VME_A32;
+		break;
+	case 0x6:
+		vmeIn->addrSpace = VME_USER1;
+		break;
+	case 0x7:
+		vmeIn->addrSpace = VME_USER2;
+		break;
+	}
+
+	return (0);
+}
+
+//-----------------------------------------------------------------------------
+// Function   : uni_set_out_bound
+// Description:
+//-----------------------------------------------------------------------------
+int uni_set_out_bound(vmeOutWindowCfg_t * vmeOut)
+{
+	int temp_ctl = 0;
+
+	// Verify input data
+	if (vmeOut->windowNbr > 7) {
+		return (-EINVAL);
+	}
+	if ((vmeOut->xlatedAddrU) || (vmeOut->windowSizeU)
+	    || (vmeOut->pciBusAddrU)) {
+		return (-EINVAL);
+	}
+	if ((vmeOut->xlatedAddrL & 0xFFF) ||
+	    (vmeOut->windowSizeL & 0xFFF) || (vmeOut->pciBusAddrL & 0xFFF)) {
+		return (-EINVAL);
+	}
+	if (vmeOut->bcastSelect2esst) {
+		return (-EINVAL);
+	}
+	switch (vmeOut->addrSpace) {
+	case VME_A64:
+	case VME_USER3:
+	case VME_USER4:
+		return (-EINVAL);
+	case VME_A16:
+		temp_ctl |= 0x00000;
+		break;
+	case VME_A24:
+		temp_ctl |= 0x10000;
+		break;
+	case VME_A32:
+		temp_ctl |= 0x20000;
+		break;
+	case VME_CRCSR:
+		temp_ctl |= 0x50000;
+		break;
+	case VME_USER1:
+		temp_ctl |= 0x60000;
+		break;
+	case VME_USER2:
+		temp_ctl |= 0x70000;
+		break;
+	}
+
+	// Disable while we are mucking around
+	writel(0x00000000, vmechip_baseaddr + outCTL[vmeOut->windowNbr]);
+	writel(vmeOut->pciBusAddrL,
+	       vmechip_baseaddr + outBS[vmeOut->windowNbr]);
+	writel(vmeOut->pciBusAddrL + vmeOut->windowSizeL,
+	       vmechip_baseaddr + outBD[vmeOut->windowNbr]);
+	writel(vmeOut->xlatedAddrL - vmeOut->pciBusAddrL,
+	       vmechip_baseaddr + outTO[vmeOut->windowNbr]);
+
+	// Sanity check.
+	if (vmeOut->pciBusAddrL !=
+	    readl(vmechip_baseaddr + outBS[vmeOut->windowNbr])) {
+		printk(KERN_ERR
+		       "ca91c042: out window: %x, failed to configure\n",
+		       vmeOut->windowNbr);
+		return (-EINVAL);
+	}
+
+	if (vmeOut->pciBusAddrL + vmeOut->windowSizeL !=
+	    readl(vmechip_baseaddr + outBD[vmeOut->windowNbr])) {
+		printk(KERN_ERR
+		       "ca91c042: out window: %x, failed to configure\n",
+		       vmeOut->windowNbr);
+		return (-EINVAL);
+	}
+
+	if (vmeOut->xlatedAddrL - vmeOut->pciBusAddrL !=
+	    readl(vmechip_baseaddr + outTO[vmeOut->windowNbr])) {
+		printk(KERN_ERR
+		       "ca91c042: out window: %x, failed to configure\n",
+		       vmeOut->windowNbr);
+		return (-EINVAL);
+	}
+	// Setup CTL register.
+	if (vmeOut->wrPostEnable)
+		temp_ctl |= 0x40000000;
+	if (vmeOut->userAccessType & VME_SUPER)
+		temp_ctl |= 0x001000;
+	if (vmeOut->dataAccessType & VME_PROG)
+		temp_ctl |= 0x004000;
+	if (vmeOut->maxDataWidth == VME_D16)
+		temp_ctl |= 0x00400000;
+	if (vmeOut->maxDataWidth == VME_D32)
+		temp_ctl |= 0x00800000;
+	if (vmeOut->maxDataWidth == VME_D64)
+		temp_ctl |= 0x00C00000;
+	if (vmeOut->xferProtocol & (VME_BLT | VME_MBLT))
+		temp_ctl |= 0x00000100;
+
+	// Write ctl reg without enable
+	writel(temp_ctl, vmechip_baseaddr + outCTL[vmeOut->windowNbr]);
+
+	if (vmeOut->windowEnable)
+		temp_ctl |= 0x80000000;
+
+	writel(temp_ctl, vmechip_baseaddr + outCTL[vmeOut->windowNbr]);
+	return (0);
+}
+
+//-----------------------------------------------------------------------------
+// Function   : uni_get_out_bound
+// Description:
+//-----------------------------------------------------------------------------
+int uni_get_out_bound(vmeOutWindowCfg_t * vmeOut)
+{
+	int temp_ctl = 0;
+
+	// Verify input data
+	if (vmeOut->windowNbr > 7) {
+		return (-EINVAL);
+	}
+	// Get Window mappings.
+	vmeOut->pciBusAddrL =
+	    readl(vmechip_baseaddr + outBS[vmeOut->windowNbr]);
+	vmeOut->xlatedAddrL =
+	    vmeOut->pciBusAddrL + readl(vmechip_baseaddr +
+					outTO[vmeOut->windowNbr]);
+	vmeOut->windowSizeL =
+	    readl(vmechip_baseaddr + outBD[vmeOut->windowNbr]) -
+	    vmeOut->pciBusAddrL;
+
+	temp_ctl = readl(vmechip_baseaddr + outCTL[vmeOut->windowNbr]);
+
+	// Get Control & BUS attributes
+	if (temp_ctl & 0x40000000)
+		vmeOut->wrPostEnable = 1;
+	if (temp_ctl & 0x001000)
+		vmeOut->userAccessType = VME_SUPER;
+	else
+		vmeOut->userAccessType = VME_USER;
+	if (temp_ctl & 0x004000)
+		vmeOut->dataAccessType = VME_PROG;
+	else
+		vmeOut->dataAccessType = VME_DATA;
+	if (temp_ctl & 0x80000000)
+		vmeOut->windowEnable = 1;
+
+	switch ((temp_ctl & 0x00C00000) >> 22) {
+	case 0:
+		vmeOut->maxDataWidth = VME_D8;
+		break;
+	case 1:
+		vmeOut->maxDataWidth = VME_D16;
+		break;
+	case 2:
+		vmeOut->maxDataWidth = VME_D32;
+		break;
+	case 3:
+		vmeOut->maxDataWidth = VME_D64;
+		break;
+	}
+	if (temp_ctl & 0x00000100)
+		vmeOut->xferProtocol = VME_BLT;
+	else
+		vmeOut->xferProtocol = VME_SCT;
+
+	switch ((temp_ctl & 0x70000) >> 16) {
+	case 0x0:
+		vmeOut->addrSpace = VME_A16;
+		break;
+	case 0x1:
+		vmeOut->addrSpace = VME_A24;
+		break;
+	case 0x2:
+		vmeOut->addrSpace = VME_A32;
+		break;
+	case 0x5:
+		vmeOut->addrSpace = VME_CRCSR;
+		break;
+	case 0x6:
+		vmeOut->addrSpace = VME_USER1;
+		break;
+	case 0x7:
+		vmeOut->addrSpace = VME_USER2;
+		break;
+	}
+
+	return (0);
+}
+
+//-----------------------------------------------------------------------------
+// Function   : uni_setup_lm
+// Description:
+//-----------------------------------------------------------------------------
+int uni_setup_lm(vmeLmCfg_t * vmeLm)
+{
+	int temp_ctl = 0;
+
+	if (vmeLm->addrU) {
+		return (-EINVAL);
+	}
+	switch (vmeLm->addrSpace) {
+	case VME_A64:
+	case VME_USER3:
+	case VME_USER4:
+		return (-EINVAL);
+	case VME_A16:
+		temp_ctl |= 0x00000;
+		break;
+	case VME_A24:
+		temp_ctl |= 0x10000;
+		break;
+	case VME_A32:
+		temp_ctl |= 0x20000;
+		break;
+	case VME_CRCSR:
+		temp_ctl |= 0x50000;
+		break;
+	case VME_USER1:
+		temp_ctl |= 0x60000;
+		break;
+	case VME_USER2:
+		temp_ctl |= 0x70000;
+		break;
+	}
+
+	// Disable while we are mucking around
+	writel(0x00000000, vmechip_baseaddr + LM_CTL);
+
+	writel(vmeLm->addr, vmechip_baseaddr + LM_BS);
+
+	// Setup CTL register.
+	if (vmeLm->userAccessType & VME_SUPER)
+		temp_ctl |= 0x00200000;
+	if (vmeLm->userAccessType & VME_USER)
+		temp_ctl |= 0x00100000;
+	if (vmeLm->dataAccessType & VME_PROG)
+		temp_ctl |= 0x00800000;
+	if (vmeLm->dataAccessType & VME_DATA)
+		temp_ctl |= 0x00400000;
+
+	uni_lm_event = 0;
+
+	// Write ctl reg and enable
+	writel(0x80000000 | temp_ctl, vmechip_baseaddr + LM_CTL);
+	temp_ctl = readl(vmechip_baseaddr + LM_CTL);
+
+	return (0);
+}
+
+//-----------------------------------------------------------------------------
+// Function   : uni_wait_lm
+// Description:
+//-----------------------------------------------------------------------------
+int uni_wait_lm(vmeLmCfg_t * vmeLm)
+{
+	unsigned long flags;
+	unsigned int tmp;
+
+	spin_lock_irqsave(&lm_lock, flags);
+	tmp = uni_lm_event;
+	spin_unlock_irqrestore(&lm_lock, flags);
+	if (tmp == 0) {
+		if (vmeLm->lmWait < 10)
+			vmeLm->lmWait = 10;
+		interruptible_sleep_on_timeout(&lm_queue, vmeLm->lmWait);
+	}
+	writel(0x00000000, vmechip_baseaddr + LM_CTL);
+	vmeLm->lmEvents = uni_lm_event;
+
+	return (0);
+}
+
+#define	SWIZZLE(X) ( ((X & 0xFF000000) >> 24) | ((X & 0x00FF0000) >>  8) | ((X & 0x0000FF00) <<  8) | ((X & 0x000000FF) << 24))
+
+//-----------------------------------------------------------------------------
+// Function   : uni_do_rmw
+// Description:
+//-----------------------------------------------------------------------------
+int uni_do_rmw(vmeRmwCfg_t * vmeRmw)
+{
+	int temp_ctl = 0;
+	int tempBS = 0;
+	int tempBD = 0;
+	int tempTO = 0;
+	int vmeBS = 0;
+	int vmeBD = 0;
+	int *rmw_pci_data_ptr = NULL;
+	int *vaDataPtr = NULL;
+	int i;
+	vmeOutWindowCfg_t vmeOut;
+	if (vmeRmw->maxAttempts < 1) {
+		return (-EINVAL);
+	}
+	if (vmeRmw->targetAddrU) {
+		return (-EINVAL);
+	}
+	// Find the PCI address that maps to the desired VME address
+	for (i = 0; i < 8; i++) {
+		temp_ctl = readl(vmechip_baseaddr + outCTL[i]);
+		if ((temp_ctl & 0x80000000) == 0) {
+			continue;
+		}
+		memset(&vmeOut, 0, sizeof(vmeOut));
+		vmeOut.windowNbr = i;
+		uni_get_out_bound(&vmeOut);
+		if (vmeOut.addrSpace != vmeRmw->addrSpace) {
+			continue;
+		}
+		tempBS = readl(vmechip_baseaddr + outBS[i]);
+		tempBD = readl(vmechip_baseaddr + outBD[i]);
+		tempTO = readl(vmechip_baseaddr + outTO[i]);
+		vmeBS = tempBS + tempTO;
+		vmeBD = tempBD + tempTO;
+		if ((vmeRmw->targetAddr >= vmeBS) &&
+		    (vmeRmw->targetAddr < vmeBD)) {
+			rmw_pci_data_ptr =
+			    (int *)(tempBS + (vmeRmw->targetAddr - vmeBS));
+			vaDataPtr =
+			    (int *)(out_image_va[i] +
+				    (vmeRmw->targetAddr - vmeBS));
+			break;
+		}
+	}
+
+	// If no window - fail.
+	if (rmw_pci_data_ptr == NULL) {
+		return (-EINVAL);
+	}
+	// Setup the RMW registers.
+	writel(0, vmechip_baseaddr + SCYC_CTL);
+	writel(SWIZZLE(vmeRmw->enableMask), vmechip_baseaddr + SCYC_EN);
+	writel(SWIZZLE(vmeRmw->compareData), vmechip_baseaddr + SCYC_CMP);
+	writel(SWIZZLE(vmeRmw->swapData), vmechip_baseaddr + SCYC_SWP);
+	writel((int)rmw_pci_data_ptr, vmechip_baseaddr + SCYC_ADDR);
+	writel(1, vmechip_baseaddr + SCYC_CTL);
+
+	// Run the RMW cycle until either success or max attempts.
+	vmeRmw->numAttempts = 1;
+	while (vmeRmw->numAttempts <= vmeRmw->maxAttempts) {
+
+		if ((readl(vaDataPtr) & vmeRmw->enableMask) ==
+		    (vmeRmw->swapData & vmeRmw->enableMask)) {
+
+			writel(0, vmechip_baseaddr + SCYC_CTL);
+			break;
+
+		}
+		vmeRmw->numAttempts++;
+	}
+
+	// If no success, set num Attempts to be greater than max attempts
+	if (vmeRmw->numAttempts > vmeRmw->maxAttempts) {
+		vmeRmw->numAttempts = vmeRmw->maxAttempts + 1;
+	}
+
+	return (0);
+}
+
+//-----------------------------------------------------------------------------
+// Function   : uniSetupDctlReg
+// Description:
+//-----------------------------------------------------------------------------
+int uniSetupDctlReg(vmeDmaPacket_t * vmeDma, int *dctlregreturn)
+{
+	unsigned int dctlreg = 0x80;
+	struct vmeAttr *vmeAttr;
+
+	if (vmeDma->srcBus == VME_DMA_VME) {
+		dctlreg = 0;
+		vmeAttr = &vmeDma->srcVmeAttr;
+	} else {
+		dctlreg = 0x80000000;
+		vmeAttr = &vmeDma->dstVmeAttr;
+	}
+
+	switch (vmeAttr->maxDataWidth) {
+	case VME_D8:
+		break;
+	case VME_D16:
+		dctlreg |= 0x00400000;
+		break;
+	case VME_D32:
+		dctlreg |= 0x00800000;
+		break;
+	case VME_D64:
+		dctlreg |= 0x00C00000;
+		break;
+	}
+
+	switch (vmeAttr->addrSpace) {
+	case VME_A16:
+		break;
+	case VME_A24:
+		dctlreg |= 0x00010000;
+		break;
+	case VME_A32:
+		dctlreg |= 0x00020000;
+		break;
+	case VME_USER1:
+		dctlreg |= 0x00060000;
+		break;
+	case VME_USER2:
+		dctlreg |= 0x00070000;
+		break;
+
+	case VME_A64:		// not supported in Universe DMA
+	case VME_CRCSR:
+	case VME_USER3:
+	case VME_USER4:
+		return (-EINVAL);
+		break;
+	}
+	if (vmeAttr->userAccessType == VME_PROG) {
+		dctlreg |= 0x00004000;
+	}
+	if (vmeAttr->dataAccessType == VME_SUPER) {
+		dctlreg |= 0x00001000;
+	}
+	if (vmeAttr->xferProtocol != VME_SCT) {
+		dctlreg |= 0x00000100;
+	}
+	*dctlregreturn = dctlreg;
+	return (0);
+}
+
+//-----------------------------------------------------------------------------
+// Function   : uni_start_dma
+// Description:
+//-----------------------------------------------------------------------------
+unsigned int
+uni_start_dma(int channel, unsigned int dgcsreg, TDMA_Cmd_Packet * vmeLL)
+{
+	unsigned int val;
+
+	// Setup registers as needed for direct or chained.
+	if (dgcsreg & 0x8000000) {
+		writel(0, vmechip_baseaddr + DTBC);
+		writel((unsigned int)vmeLL, vmechip_baseaddr + DCPP);
+	} else {
+#if	0
+		printk("Starting: DGCS = %08x\n", dgcsreg);
+		printk("Starting: DVA  = %08x\n", readl(&vmeLL->dva));
+		printk("Starting: DLV  = %08x\n", readl(&vmeLL->dlv));
+		printk("Starting: DTBC = %08x\n", readl(&vmeLL->dtbc));
+		printk("Starting: DCTL = %08x\n", readl(&vmeLL->dctl));
+#endif
+		// Write registers
+		writel(readl(&vmeLL->dva), vmechip_baseaddr + DVA);
+		writel(readl(&vmeLL->dlv), vmechip_baseaddr + DLA);
+		writel(readl(&vmeLL->dtbc), vmechip_baseaddr + DTBC);
+		writel(readl(&vmeLL->dctl), vmechip_baseaddr + DCTL);
+		writel(0, vmechip_baseaddr + DCPP);
+	}
+
+	// Start the operation
+	writel(dgcsreg, vmechip_baseaddr + DGCS);
+	val = get_tbl();
+	writel(dgcsreg | 0x8000000F, vmechip_baseaddr + DGCS);
+	return (val);
+}
+
+//-----------------------------------------------------------------------------
+// Function   : uni_setup_dma
+// Description:
+//-----------------------------------------------------------------------------
+TDMA_Cmd_Packet *uni_setup_dma(vmeDmaPacket_t * vmeDma)
+{
+	vmeDmaPacket_t *vmeCur;
+	int maxPerPage;
+	int currentLLcount;
+	TDMA_Cmd_Packet *startLL;
+	TDMA_Cmd_Packet *currentLL;
+	TDMA_Cmd_Packet *nextLL;
+	unsigned int dctlreg = 0;
+
+	maxPerPage = PAGESIZE / sizeof(TDMA_Cmd_Packet) - 1;
+	startLL = (TDMA_Cmd_Packet *) __get_free_pages(GFP_KERNEL, 0);
+	if (startLL == 0) {
+		return (startLL);
+	}
+	// First allocate pages for descriptors and create linked list
+	vmeCur = vmeDma;
+	currentLL = startLL;
+	currentLLcount = 0;
+	while (vmeCur != 0) {
+		if (vmeCur->pNextPacket != 0) {
+			currentLL->dcpp = (unsigned int)(currentLL + 1);
+			currentLLcount++;
+			if (currentLLcount >= maxPerPage) {
+				currentLL->dcpp =
+				    __get_free_pages(GFP_KERNEL, 0);
+				currentLLcount = 0;
+			}
+			currentLL = (TDMA_Cmd_Packet *) currentLL->dcpp;
+		} else {
+			currentLL->dcpp = (unsigned int)0;
+		}
+		vmeCur = vmeCur->pNextPacket;
+	}
+
+	// Next fill in information for each descriptor
+	vmeCur = vmeDma;
+	currentLL = startLL;
+	while (vmeCur != 0) {
+		if (vmeCur->srcBus == VME_DMA_VME) {
+			writel(vmeCur->srcAddr, &currentLL->dva);
+			writel(vmeCur->dstAddr, &currentLL->dlv);
+		} else {
+			writel(vmeCur->srcAddr, &currentLL->dlv);
+			writel(vmeCur->dstAddr, &currentLL->dva);
+		}
+		uniSetupDctlReg(vmeCur, &dctlreg);
+		writel(dctlreg, &currentLL->dctl);
+		writel(vmeCur->byteCount, &currentLL->dtbc);
+
+		currentLL = (TDMA_Cmd_Packet *) currentLL->dcpp;
+		vmeCur = vmeCur->pNextPacket;
+	}
+
+	// Convert Links to PCI addresses.
+	currentLL = startLL;
+	while (currentLL != 0) {
+		nextLL = (TDMA_Cmd_Packet *) currentLL->dcpp;
+		if (nextLL == 0) {
+			writel(1, &currentLL->dcpp);
+		} else {
+			writel((unsigned int)virt_to_bus(nextLL),
+			       &currentLL->dcpp);
+		}
+		currentLL = nextLL;
+	}
+
+	// Return pointer to descriptors list
+	return (startLL);
+}
+
+//-----------------------------------------------------------------------------
+// Function   : uni_free_dma
+// Description:
+//-----------------------------------------------------------------------------
+int uni_free_dma(TDMA_Cmd_Packet * startLL)
+{
+	TDMA_Cmd_Packet *currentLL;
+	TDMA_Cmd_Packet *prevLL;
+	TDMA_Cmd_Packet *nextLL;
+	unsigned int dcppreg;
+
+	// Convert Links to virtual addresses.
+	currentLL = startLL;
+	while (currentLL != 0) {
+		dcppreg = readl(&currentLL->dcpp);
+		dcppreg &= ~6;
+		if (dcppreg & 1) {
+			currentLL->dcpp = 0;
+		} else {
+			currentLL->dcpp = (unsigned int)bus_to_virt(dcppreg);
+		}
+		currentLL = (TDMA_Cmd_Packet *) currentLL->dcpp;
+	}
+
+	// Free all pages associated with the descriptors.
+	currentLL = startLL;
+	prevLL = currentLL;
+	while (currentLL != 0) {
+		nextLL = (TDMA_Cmd_Packet *) currentLL->dcpp;
+		if (currentLL + 1 != nextLL) {
+			free_pages((int)prevLL, 0);
+			prevLL = nextLL;
+		}
+		currentLL = nextLL;
+	}
+
+	// Return pointer to descriptors list
+	return (0);
+}
+
+//-----------------------------------------------------------------------------
+// Function   : uni_do_dma
+// Description:
+//-----------------------------------------------------------------------------
+int uni_do_dma(vmeDmaPacket_t * vmeDma)
+{
+	unsigned int dgcsreg = 0;
+	unsigned int dctlreg = 0;
+	int val;
+	int channel, x;
+	vmeDmaPacket_t *curDma;
+	TDMA_Cmd_Packet *dmaLL;
+
+	// Sanity check the VME chain.
+	channel = vmeDma->channel_number;
+	if (channel > 0) {
+		return (-EINVAL);
+	}
+	curDma = vmeDma;
+	while (curDma != 0) {
+		if (curDma->byteCount == 0) {
+			return (-EINVAL);
+		}
+		if (curDma->byteCount >= 0x1000000) {
+			return (-EINVAL);
+		}
+		if ((curDma->srcAddr & 7) != (curDma->dstAddr & 7)) {
+			return (-EINVAL);
+		}
+		switch (curDma->srcBus) {
+		case VME_DMA_PCI:
+			if (curDma->dstBus != VME_DMA_VME) {
+				return (-EINVAL);
+			}
+			break;
+		case VME_DMA_VME:
+			if (curDma->dstBus != VME_DMA_PCI) {
+				return (-EINVAL);
+			}
+			break;
+		default:
+			return (-EINVAL);
+			break;
+		}
+		if (uniSetupDctlReg(curDma, &dctlreg) < 0) {
+			return (-EINVAL);
+		}
+
+		curDma = curDma->pNextPacket;
+		if (curDma == vmeDma) {	// Endless Loop!
+			return (-EINVAL);
+		}
+	}
+
+	// calculate control register
+	if (vmeDma->pNextPacket != 0) {
+		dgcsreg = 0x8000000;
+	} else {
+		dgcsreg = 0;
+	}
+
+	for (x = 0; x < 8; x++) {	// vme block size
+		if ((256 << x) >= vmeDma->maxVmeBlockSize) {
+			break;
+		}
+	}
+	if (x == 8)
+		x = 7;
+	dgcsreg |= (x << 20);
+
+	if (vmeDma->vmeBackOffTimer) {
+		for (x = 1; x < 8; x++) {	// vme timer
+			if ((16 << (x - 1)) >= vmeDma->vmeBackOffTimer) {
+				break;
+			}
+		}
+		if (x == 8)
+			x = 7;
+		dgcsreg |= (x << 16);
+	}
+	// Setup the dma chain
+	dmaLL = uni_setup_dma(vmeDma);
+
+	// Start the DMA
+	if (dgcsreg & 0x8000000) {
+		vmeDma->vmeDmaStartTick =
+		    uni_start_dma(channel, dgcsreg,
+				  (TDMA_Cmd_Packet *) virt_to_phys(dmaLL));
+	} else {
+		vmeDma->vmeDmaStartTick =
+		    uni_start_dma(channel, dgcsreg, dmaLL);
+	}
+
+	wait_event_interruptible(dma_queue[0],
+				 readl(vmechip_baseaddr + DGCS) & 0x800);
+
+	val = readl(vmechip_baseaddr + DGCS);
+	writel(val | 0xF00, vmechip_baseaddr + DGCS);
+
+	vmeDma->vmeDmaStatus = 0;
+	vmeDma->vmeDmaStopTick = uni_dma_irq_time;
+	if (vmeDma->vmeDmaStopTick < vmeDma->vmeDmaStartTick) {
+		vmeDma->vmeDmaElapsedTime =
+		    (0xFFFFFFFF - vmeDma->vmeDmaStartTick) +
+		    vmeDma->vmeDmaStopTick;
+	} else {
+		vmeDma->vmeDmaElapsedTime =
+		    vmeDma->vmeDmaStopTick - vmeDma->vmeDmaStartTick;
+	}
+	vmeDma->vmeDmaElapsedTime -= vmechip_irq_overhead_ticks;
+	vmeDma->vmeDmaElapsedTime /= (tb_speed / 1000000);
+
+	if (!(val & 0x00000800)) {
+		vmeDma->vmeDmaStatus = val & 0x700;
+		printk(KERN_ERR
+		       "ca91c042: DMA Error in DMA_uni_irqhandler DGCS=%08X\n",
+		       val);
+		val = readl(vmechip_baseaddr + DCPP);
+		printk(KERN_ERR "ca91c042: DCPP=%08X\n", val);
+		val = readl(vmechip_baseaddr + DCTL);
+		printk(KERN_ERR "ca91c042: DCTL=%08X\n", val);
+		val = readl(vmechip_baseaddr + DTBC);
+		printk(KERN_ERR "ca91c042: DTBC=%08X\n", val);
+		val = readl(vmechip_baseaddr + DLA);
+		printk(KERN_ERR "ca91c042: DLA=%08X\n", val);
+		val = readl(vmechip_baseaddr + DVA);
+		printk(KERN_ERR "ca91c042: DVA=%08X\n", val);
+
+	}
+	// Free the dma chain
+	uni_free_dma(dmaLL);
+
+	return (0);
+}
+
+//-----------------------------------------------------------------------------
+// Function   : uni_shutdown
+// Description: Put VME bridge in quiescent state.
+//-----------------------------------------------------------------------------
+void uni_shutdown(void)
+{
+	writel(0, vmechip_baseaddr + LINT_EN);	// Turn off Ints
+
+	// Turn off the windows
+	writel(0x00800000, vmechip_baseaddr + LSI0_CTL);
+	writel(0x00800000, vmechip_baseaddr + LSI1_CTL);
+	writel(0x00800000, vmechip_baseaddr + LSI2_CTL);
+	writel(0x00800000, vmechip_baseaddr + LSI3_CTL);
+	writel(0x00F00000, vmechip_baseaddr + VSI0_CTL);
+	writel(0x00F00000, vmechip_baseaddr + VSI1_CTL);
+	writel(0x00F00000, vmechip_baseaddr + VSI2_CTL);
+	writel(0x00F00000, vmechip_baseaddr + VSI3_CTL);
+	if (vmechip_revision >= 2) {
+		writel(0x00800000, vmechip_baseaddr + LSI4_CTL);
+		writel(0x00800000, vmechip_baseaddr + LSI5_CTL);
+		writel(0x00800000, vmechip_baseaddr + LSI6_CTL);
+		writel(0x00800000, vmechip_baseaddr + LSI7_CTL);
+		writel(0x00F00000, vmechip_baseaddr + VSI4_CTL);
+		writel(0x00F00000, vmechip_baseaddr + VSI5_CTL);
+		writel(0x00F00000, vmechip_baseaddr + VSI6_CTL);
+		writel(0x00F00000, vmechip_baseaddr + VSI7_CTL);
+	}
+}
+
+//-----------------------------------------------------------------------------
+// Function   : uni_init()
+// Description:
+//-----------------------------------------------------------------------------
+int uni_init(void)
+{
+	int result;
+	unsigned int tmp;
+	unsigned int crcsr_addr;
+	unsigned int irqOverHeadStart;
+	int overHeadTicks;
+
+	uni_shutdown();
+
+	// Write to Misc Register
+	// Set VME Bus Time-out
+	//   Arbitration Mode
+	//   DTACK Enable
+	tmp = readl(vmechip_baseaddr + MISC_CTL) & 0x0832BFFF;
+	tmp |= 0x76040000;
+	writel(tmp, vmechip_baseaddr + MISC_CTL);
+	if (tmp & 0x20000) {
+		vme_syscon = 1;
+	} else {
+		vme_syscon = 0;
+	}
+
+	// Clear DMA status log
+	writel(0x00000F00, vmechip_baseaddr + DGCS);
+	// Clear and enable error log
+	writel(0x00800000, vmechip_baseaddr + L_CMDERR);
+	// Turn off location monitor
+	writel(0x00000000, vmechip_baseaddr + LM_CTL);
+
+	// Initialize crcsr map
+	if (vme_slotnum != -1) {
+		writel(vme_slotnum << 27, vmechip_baseaddr + VCSR_BS);
+	}
+	crcsr_addr = readl(vmechip_baseaddr + VCSR_BS) >> 8;
+	writel((unsigned int)vmechip_interboard_datap - crcsr_addr,
+	       vmechip_baseaddr + VCSR_TO);
+	if (vme_slotnum != -1) {
+		writel(0x80000000, vmechip_baseaddr + VCSR_CTL);
+	}
+	// Turn off interrupts
+	writel(0x00000000, vmechip_baseaddr + LINT_EN);	// Disable interrupts in the Universe first
+	writel(0x00FFFFFF, vmechip_baseaddr + LINT_STAT);	// Clear Any Pending Interrupts
+	writel(0x00000000, vmechip_baseaddr + VINT_EN);	// Disable interrupts in the Universe first
+
+	result =
+	    request_irq(vmechip_irq, uni_irqhandler, IRQF_SHARED | IRQF_DISABLED,
+			"VMEBus (ca91c042)", vmechip_baseaddr);
+	if (result) {
+		printk(KERN_ERR
+		       "ca91c042: can't get assigned pci irq vector %02X\n",
+		       vmechip_irq);
+		return (0);
+	} else {
+		writel(0x0000, vmechip_baseaddr + LINT_MAP0);	// Map all ints to 0
+		writel(0x0000, vmechip_baseaddr + LINT_MAP1);	// Map all ints to 0
+		writel(0x0000, vmechip_baseaddr + LINT_MAP2);	// Map all ints to 0
+	}
+
+	// Enable DMA, mailbox, VIRQ & LM Interrupts
+	if (vme_syscon)
+		tmp = 0x00FF07FE;
+	else
+		tmp = 0x00FF0700;
+	writel(tmp, vmechip_baseaddr + LINT_EN);
+
+	// Do a quick sanity test of the bridge
+	if (readl(vmechip_baseaddr + LINT_EN) != tmp) {
+		return (0);
+	}
+	if (readl(vmechip_baseaddr + PCI_CLASS_REVISION) != 0x06800002) {
+		return (0);
+	}
+	for (tmp = 1; tmp < 0x80000000; tmp = tmp << 1) {
+		writel(tmp, vmechip_baseaddr + SCYC_EN);
+		writel(~tmp, vmechip_baseaddr + SCYC_CMP);
+		if (readl(vmechip_baseaddr + SCYC_EN) != tmp) {
+			return (0);
+		}
+		if (readl(vmechip_baseaddr + SCYC_CMP) != ~tmp) {
+			return (0);
+		}
+	}
+
+	// do a mail box interrupt to calibrate the interrupt overhead.
+
+	irqOverHeadStart = get_tbl();
+	writel(0, vmechip_baseaddr + MBOX1);
+	for (tmp = 0; tmp < 10; tmp++) {
+	}
+
+	irqOverHeadStart = get_tbl();
+	writel(0, vmechip_baseaddr + MBOX1);
+	for (tmp = 0; tmp < 10; tmp++) {
+	}
+
+	overHeadTicks = uni_irq_time - irqOverHeadStart;
+	if (overHeadTicks > 0) {
+		vmechip_irq_overhead_ticks = overHeadTicks;
+	} else {
+		vmechip_irq_overhead_ticks = 1;
+	}
+	return (1);
+}
--- /dev/null
+++ b/drivers/staging/vme/bridges/vme_ca91cx42.h
@@ -0,0 +1,403 @@
+/*
+ * ca91c042.h
+ *
+ * Support for the Tundra Universe 1 and Universe II VME bridge chips
+ *
+ * Author: Tom Armistead
+ * Updated and maintained by Ajit Prem
+ * Copyright 2004 Motorola Inc.
+ *
+ * Derived from ca91c042.h by Michael Wyrick
+ *
+ * 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.
+ */
+
+#ifndef _ca91c042_h
+#define _ca91c042_h
+
+#ifndef	PCI_VENDOR_ID_TUNDRA
+#define	PCI_VENDOR_ID_TUNDRA 0x10e3
+#endif
+
+#ifndef	PCI_DEVICE_ID_TUNDRA_CA91C042
+#define	PCI_DEVICE_ID_TUNDRA_CA91C042 0x0000
+#endif
+
+//-----------------------------------------------------------------------------
+// Public Functions
+//-----------------------------------------------------------------------------
+// This is the typedef for a VmeIrqHandler
+typedef void (*TirqHandler) (int vmeirq, int vector, void *dev_id,
+			     struct pt_regs * regs);
+// This is the typedef for a DMA Transfer Callback function
+typedef void (*TDMAcallback) (int status);
+
+//  Returns the PCI baseaddress of the Universe chip
+char *Universe_BaseAddr(void);
+//  Returns the PCI IRQ That the universe is using
+int Universe_IRQ(void);
+
+char *mapvme(unsigned int pci, unsigned int vme, unsigned int size,
+	     int image, int ctl);
+void unmapvme(char *ptr, int image);
+
+// Interrupt Stuff
+void enable_vmeirq(unsigned int irq);
+void disable_vmeirq(unsigned int irq);
+int request_vmeirq(unsigned int irq, TirqHandler);
+void free_vmeirq(unsigned int irq);
+
+// DMA Stuff
+
+int VME_Bus_Error(void);
+int uni_procinfo(char *);
+
+#define IRQ_VOWN    0x0001
+#define IRQ_VIRQ1   0x0002
+#define IRQ_VIRQ2   0x0004
+#define IRQ_VIRQ3   0x0008
+#define IRQ_VIRQ4   0x0010
+#define IRQ_VIRQ5   0x0020
+#define IRQ_VIRQ6   0x0040
+#define IRQ_VIRQ7   0x0080
+#define IRQ_DMA     0x0100
+#define IRQ_LERR    0x0200
+#define IRQ_VERR    0x0400
+#define IRQ_res     0x0800
+#define IRQ_IACK    0x1000
+#define IRQ_SWINT   0x2000
+#define IRQ_SYSFAIL 0x4000
+#define IRQ_ACFAIL  0x8000
+
+// See Page 2-77 in the Universe User Manual
+typedef struct {
+	unsigned int dctl;	// DMA Control
+	unsigned int dtbc;	// Transfer Byte Count
+	unsigned int dlv;	// PCI Address
+	unsigned int res1;	// Reserved
+	unsigned int dva;	// Vme Address
+	unsigned int res2;	// Reserved
+	unsigned int dcpp;	// Pointer to Numed Cmd Packet with rPN
+	unsigned int res3;	// Reserved
+} TDMA_Cmd_Packet;
+
+/*
+ * Below here is normaly not used by a user module
+ */
+#define  DMATIMEOUT 2*HZ;
+
+// Define for the Universe
+#define SEEK_SET 0
+#define SEEK_CUR 1
+
+#define CONFIG_REG_SPACE        0xA0000000
+
+/* Universe Register Offsets */
+/* general PCI configuration registers */
+#define UNIV_PCI_ID             0x000
+#define UNIV_PCI_CSR            0x004
+#define UNIV_PCI_CLASS          0x008
+#define UNIV_BM_PCI_CLASS_BASE          0xFF000000
+#define UNIV_OF_PCI_CLASS_BASE          24
+#define UNIV_BM_PCI_CLASS_SUB           0x00FF0000
+#define UNIV_OF_PCI_CLASS_SUB           16
+#define UNIV_BM_PCI_CLASS_PROG          0x0000FF00
+#define UNIV_OF_PCI_CLASS_PROG          8
+#define UNIV_BM_PCI_CLASS_RID           0x000000FF
+#define UNIV_OF_PCI_CLASS_RID           0
+
+#define UNIV_OF_PCI_CLASS_RID_UNIVERSE_I 0
+#define UNIV_OF_PCI_CLASS_RID_UNIVERSE_II 1
+
+#define UNIV_PCI_MISC0          0x00C
+#define UNIV_BM_PCI_MISC0_BISTC         0x80000000
+#define UNIV_BM_PCI_MISC0_SBIST         0x60000000
+#define UNIV_BM_PCI_MISC0_CCODE         0x0F000000
+#define UNIV_BM_PCI_MISC0_MFUNCT        0x00800000
+#define UNIV_BM_PCI_MISC0_LAYOUT        0x007F0000
+#define UNIV_BM_PCI_MISC0_LTIMER        0x0000FF00
+#define UNIV_OF_PCI_MISC0_LTIMER        8
+#define UNIV_PCI_BS             0x010
+#define UNIV_PCI_MISC1          0x03C
+
+#define UNIV_BM_LSI_CTL_EN      0x80000000
+#define UNIV_BM_LSI_CTL_PWEN    0x40000000
+#define UNIV_BM_LSI_CTL_VDW     0x00C00000
+#define UNIV_OF_LSI_CTL_VDW     22
+#define UNIV_BM_LSI_CTL_VAS     0x00070000
+#define UNIV_OF_LSI_CTL_VAS     16
+#define UNIV_BM_LSI_CTL_PGM     0x0000C000
+#define UNIV_OF_LSI_CTL_PGM     14
+#define UNIV_BM_LSI_CTL_SUPER   0x00003000
+#define UNIV_OF_LSI_CTL_SUPER   12
+#define UNIV_BM_LSI_CTL_VCT     0x00000100
+#define UNIV_BM_LSI_CTL_LAS     0x00000003
+#define UNIV_OF_LSI_CTL_LAS     0
+#define UNIV_BM_LSI_CTL_RESERVED (~ (UNIV_BM_LSI_CTL_EN | UNIV_BM_LSI_CTL_PWEN | UNIV_BM_LSI_CTL_VDW | UNIV_BM_LSI_CTL_VAS | UNIV_BM_LSI_CTL_PGM | UNIV_BM_LSI_CTL_SUPER | UNIV_BM_LSI_CTL_VCT | UNIV_BM_LSI_CTL_LAS))
+
+#define PCI_SIZE_8	    0x0001
+#define PCI_SIZE_16	    0x0002
+#define PCI_SIZE_32	    0x0003
+
+#define IOCTL_SET_CTL 	0xF001
+#define IOCTL_SET_BS	0xF002
+#define IOCTL_SET_BD	0xF003
+#define IOCTL_SET_TO	0xF004
+#define IOCTL_PCI_SIZE  0xF005
+#define IOCTL_SET_MODE 	0xF006
+#define IOCTL_SET_WINT  0xF007	// Wait for interrupt before read
+
+#define LSI0_CTL	0x0100
+#define LSI0_BS		0x0104
+#define LSI0_BD		0x0108
+#define LSI0_TO		0x010C
+
+#define LSI1_CTL	      0x0114
+#define LSI1_BS		      0x0118
+#define LSI1_BD		      0x011C
+#define LSI1_TO		      0x0120
+
+#define LSI2_CTL	      0x0128
+#define LSI2_BS		      0x012C
+#define LSI2_BD		      0x0130
+#define LSI2_TO		      0x0134
+
+#define LSI3_CTL	      0x013C
+#define LSI3_BS		      0x0140
+#define LSI3_BD		      0x0144
+#define LSI3_TO		      0x0148
+
+#define LSI4_CTL	      0x01A0
+#define LSI4_BS		      0x01A4
+#define LSI4_BD		      0x01A8
+#define LSI4_TO		      0x01AC
+
+#define LSI5_CTL	      0x01B4
+#define LSI5_BS		      0x01B8
+#define LSI5_BD		      0x01BC
+#define LSI5_TO		      0x01C0
+
+#define LSI6_CTL	      0x01C8
+#define LSI6_BS		      0x01CC
+#define LSI6_BD		      0x01D0
+#define LSI6_TO		      0x01D4
+
+#define LSI7_CTL	      0x01DC
+#define LSI7_BS		      0x01E0
+#define LSI7_BD		      0x01E4
+#define LSI7_TO		      0x01E8
+
+#define SCYC_CTL		0x0170
+#define SCYC_ADDR		0x0174
+#define SCYC_EN			0x0178
+#define SCYC_CMP		0x017C
+#define SCYC_SWP		0x0180
+#define LMISC			0x0184
+#define UNIV_BM_LMISC_CRT               0xF0000000
+#define UNIV_OF_LMISC_CRT               28
+#define UNIV_BM_LMISC_CWT               0x0F000000
+#define UNIV_OF_LMISC_CWT               24
+#define SLSI		        0x0188
+#define UNIV_BM_SLSI_EN                 0x80000000
+#define UNIV_BM_SLSI_PWEN               0x40000000
+#define UNIV_BM_SLSI_VDW                0x00F00000
+#define UNIV_OF_SLSI_VDW                20
+#define UNIV_BM_SLSI_PGM                0x0000F000
+#define UNIV_OF_SLSI_PGM                12
+#define UNIV_BM_SLSI_SUPER              0x00000F00
+#define UNIV_OF_SLSI_SUPER              8
+#define UNIV_BM_SLSI_BS                 0x000000F6
+#define UNIV_OF_SLSI_BS                 2
+#define UNIV_BM_SLSI_LAS                0x00000003
+#define UNIV_OF_SLSI_LAS                0
+#define UNIV_BM_SLSI_RESERVED           0x3F0F0000
+#define L_CMDERR		0x018C
+#define LAERR		        0x0190
+
+#define DCTL		        0x0200
+#define DTBC		        0x0204
+#define DLA			0x0208
+#define DVA			0x0210
+#define DCPP		        0x0218
+#define DGCS		        0x0220
+#define D_LLUE			0x0224
+
+#define LINT_EN		      0x0300
+#define UNIV_BM_LINT_ACFAIL             0x00008000
+#define UNIV_BM_LINT_SYSFAIL            0x00004000
+#define UNIV_BM_LINT_SW_INT             0x00002000
+#define UNIV_BM_LINT_SW_IACK            0x00001000
+#define UNIV_BM_LINT_VERR               0x00000400
+#define UNIV_BM_LINT_LERR               0x00000200
+#define UNIV_BM_LINT_DMA                0x00000100
+#define UNIV_BM_LINT_LM                 0x00F00000
+#define UNIV_BM_LINT_MBOX               0x000F0000
+#define UNIV_BM_LINT_VIRQ               0x000000FE
+#define UNIV_BM_LINT_VIRQ7              0x00000080
+#define UNIV_BM_LINT_VIRQ6              0x00000040
+#define UNIV_BM_LINT_VIRQ5              0x00000020
+#define UNIV_BM_LINT_VIRQ4              0x00000010
+#define UNIV_BM_LINT_VIRQ3              0x00000008
+#define UNIV_BM_LINT_VIRQ2              0x00000004
+#define UNIV_BM_LINT_VIRQ1              0x00000002
+#define UNIV_BM_LINT_VOWN               0x00000001
+#define LINT_STAT	      0x0304
+#define LINT_MAP0	      0x0308
+#define LINT_MAP1	      0x030C
+#define VINT_EN		      0x0310
+#define VINT_STAT	      0x0314
+#define VINT_MAP0	      0x0318
+#define VINT_MAP1	      0x031C
+#define STATID		      0x0320
+#define V1_STATID	      0x0324
+#define V2_STATID	      0x0328
+#define V3_STATID	      0x032C
+#define V4_STATID	      0x0330
+#define V5_STATID	      0x0334
+#define V6_STATID	      0x0338
+#define V7_STATID	      0x033C
+#define LINT_MAP2	      0x0340
+#define VINT_MAP2	      0x0344
+
+#define MBOX0	              0x0348
+#define MBOX1	              0x034C
+#define MBOX2		      0x0350
+#define MBOX3		      0x0354
+#define SEMA0		      0x0358
+#define SEMA1		      0x035C
+
+#define MAST_CTL	      0x0400
+#define UNIV_BM_MAST_CTL_MAXRTRY        0xF0000000
+#define UNIV_OF_MAST_CTL_MAXRTRY        28
+#define UNIV_BM_MAST_CTL_PWON           0x0F000000
+#define UNIV_OF_MAST_CTL_PWON           24
+#define UNIV_BM_MAST_CTL_VRL            0x00C00000
+#define UNIV_OF_MAST_CTL_VRL            22
+#define UNIV_BM_MAST_CTL_VRM            0x00200000
+#define UNIV_BM_MAST_CTL_VREL           0x00100000
+#define UNIV_BM_MAST_CTL_VOWN           0x00080000
+#define UNIV_BM_MAST_CTL_VOWN_ACK       0x00040000
+#define UNIV_BM_MAST_CTL_PABS           0x00001000
+#define UNIV_BM_MAST_CTL_BUS_NO         0x0000000F
+#define UNIV_OF_MAST_CTL_BUS_NO         0
+
+#define MISC_CTL	      0x0404
+#define UNIV_BM_MISC_CTL_VBTO           0xF0000000
+#define UNIV_OF_MISC_CTL_VBTO           28
+#define UNIV_BM_MISC_CTL_VARB           0x04000000
+#define UNIV_BM_MISC_CTL_VARBTO         0x03000000
+#define UNIV_OF_MISC_CTL_VARBTO         24
+#define UNIV_BM_MISC_CTL_SW_LRST        0x00800000
+#define UNIV_BM_MISC_CTL_SW_SRST        0x00400000
+#define UNIV_BM_MISC_CTL_BI             0x00100000
+#define UNIV_BM_MISC_CTL_ENGBI          0x00080000
+#define UNIV_BM_MISC_CTL_RESCIND        0x00040000
+#define UNIV_BM_MISC_CTL_SYSCON         0x00020000
+#define UNIV_BM_MISC_CTL_V64AUTO        0x00010000
+#define UNIV_BM_MISC_CTL_RESERVED       0x0820FFFF
+
+#define MISC_STAT	      0x0408
+#define UNIV_BM_MISC_STAT_ENDIAN        0x80000000
+#define UNIV_BM_MISC_STAT_LCLSIZE       0x40000000
+#define UNIV_BM_MISC_STAT_DY4AUTO       0x08000000
+#define UNIV_BM_MISC_STAT_MYBBSY        0x00200000
+#define UNIV_BM_MISC_STAT_DY4DONE       0x00080000
+#define UNIV_BM_MISC_STAT_TXFE          0x00040000
+#define UNIV_BM_MISC_STAT_RXFE          0x00020000
+#define UNIV_BM_MISC_STAT_DY4AUTOID     0x0000FF00
+#define UNIV_OF_MISC_STAT_DY4AUTOID     8
+
+#define USER_AM		      0x040C
+
+#define VSI0_CTL	      0x0F00
+#define VSI0_BS		      0x0F04
+#define VSI0_BD		      0x0F08
+#define VSI0_TO		      0x0F0C
+
+#define VSI1_CTL	      0x0F14
+#define VSI1_BS		      0x0F18
+#define VSI1_BD		      0x0F1C
+#define VSI1_TO		      0x0F20
+
+#define VSI2_CTL	      0x0F28
+#define VSI2_BS		      0x0F2C
+#define VSI2_BD		      0x0F30
+#define VSI2_TO		      0x0F34
+
+#define VSI3_CTL	      0x0F3C
+#define VSI3_BS		      0x0F40
+#define VSI3_BD		      0x0F44
+#define VSI3_TO		      0x0F48
+
+#define LM_CTL		      0x0F64
+#define LM_BS		      0x0F68
+
+#define VRAI_CTL	      0x0F70
+#define UNIV_BM_VRAI_CTL_EN             0x80000000
+#define UNIV_BM_VRAI_CTL_PGM            0x00C00000
+#define UNIV_OF_VRAI_CTL_PGM            22
+#define UNIV_BM_VRAI_CTL_SUPER          0x00300000
+#define UNIV_OF_VRAI_CTL_SUPER          20
+#define UNIV_BM_VRAI_CTL_VAS            0x00030000
+#define UNIV_OF_VRAI_CTL_VAS            16
+
+#define VRAI_BS		      0x0F74
+#define VCSR_CTL	      0x0F80
+#define VCSR_TO		      0x0F84
+#define V_AMERR		      0x0F88
+#define VAERR			0x0F8C
+
+#define VSI4_CTL	      0x0F90
+#define VSI4_BS		      0x0F94
+#define VSI4_BD		      0x0F98
+#define VSI4_TO		      0x0F9C
+
+#define VSI5_CTL	      0x0FA4
+#define VSI5_BS		      0x0FA8
+#define VSI5_BD		      0x0FAC
+#define VSI5_TO		      0x0FB0
+
+#define VSI6_CTL	      0x0FB8
+#define VSI6_BS		      0x0FBC
+#define VSI6_BD		      0x0FC0
+#define VSI6_TO		      0x0FC4
+
+#define VSI7_CTL	      0x0FCC
+#define VSI7_BS		      0x0FD0
+#define VSI7_BD		      0x0FD4
+#define VSI7_TO		      0x0FD8
+
+#define VCSR_CLR	      0x0FF4
+#define VCSR_SET	      0x0FF8
+#define VCSR_BS		      0x0FFC
+
+// DMA General Control/Status Register DGCS (0x220)
+// 32-24 ||  GO   | STOPR | HALTR |   0   || CHAIN |   0   |   0   |   0   ||
+// 23-16 ||              VON              ||             VOFF              ||
+// 15-08 ||  ACT  | STOP  | HALT  |   0   || DONE  | LERR  | VERR  | P_ERR ||
+// 07-00 ||   0   | INT_S | INT_H |   0   || I_DNE | I_LER | I_VER | I_PER ||
+
+// VON - Length Per DMA VMEBus Transfer
+//  0000 = None
+//  0001 = 256 Bytes
+//  0010 = 512
+//  0011 = 1024
+//  0100 = 2048
+//  0101 = 4096
+//  0110 = 8192
+//  0111 = 16384
+
+// VOFF - wait between DMA tenures
+//  0000 = 0    us
+//  0001 = 16
+//  0010 = 32
+//  0011 = 64
+//  0100 = 128
+//  0101 = 256
+//  0110 = 512
+//  0111 = 1024
+
+#endif				/* _ca91c042_h */
--- a/drivers/staging/vme/Kconfig
+++ b/drivers/staging/vme/Kconfig
@@ -10,7 +10,7 @@ menuconfig VME
 
 if VME
 
-#source "drivers/staging/vme/bridges/Kconfig"
+source "drivers/staging/vme/bridges/Kconfig"
 
 source "drivers/staging/vme/devices/Kconfig"
 
--- a/drivers/staging/vme/Makefile
+++ b/drivers/staging/vme/Makefile
@@ -3,5 +3,5 @@
 #
 obj-$(CONFIG_VME)		+= vme.o
 
-#obj-y				+= bridges/
+obj-y				+= bridges/
 obj-y				+= devices/