1 files changed, 0 insertions, 644 deletions

diff --git a/arch/sparc64/kernel/ebus.c b/arch/sparc64/kernel/ebus.c
deleted file mode 100644
index 6ffbeb70194..00000000000
--- a/arch/sparc64/kernel/ebus.c
+++ /dev/null
@@ -1,644 +0,0 @@
-/* $Id: ebus.c,v 1.64 2001/11/08 04:41:33 davem Exp $
- * ebus.c: PCI to EBus bridge device.
- *
- * Copyright (C) 1997  Eddie C. Dost  (ecd@skynet.be)
- * Copyright (C) 1999  David S. Miller (davem@redhat.com)
- */
-
-#include <linux/config.h>
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/types.h>
-#include <linux/init.h>
-#include <linux/slab.h>
-#include <linux/string.h>
-#include <linux/interrupt.h>
-#include <linux/delay.h>
-
-#include <asm/system.h>
-#include <asm/page.h>
-#include <asm/pbm.h>
-#include <asm/ebus.h>
-#include <asm/oplib.h>
-#include <asm/bpp.h>
-#include <asm/irq.h>
-
-/* EBUS dma library. */
-
-#define EBDMA_CSR	0x00UL	/* Control/Status */
-#define EBDMA_ADDR	0x04UL	/* DMA Address */
-#define EBDMA_COUNT	0x08UL	/* DMA Count */
-
-#define EBDMA_CSR_INT_PEND	0x00000001
-#define EBDMA_CSR_ERR_PEND	0x00000002
-#define EBDMA_CSR_DRAIN		0x00000004
-#define EBDMA_CSR_INT_EN	0x00000010
-#define EBDMA_CSR_RESET		0x00000080
-#define EBDMA_CSR_WRITE		0x00000100
-#define EBDMA_CSR_EN_DMA	0x00000200
-#define EBDMA_CSR_CYC_PEND	0x00000400
-#define EBDMA_CSR_DIAG_RD_DONE	0x00000800
-#define EBDMA_CSR_DIAG_WR_DONE	0x00001000
-#define EBDMA_CSR_EN_CNT	0x00002000
-#define EBDMA_CSR_TC		0x00004000
-#define EBDMA_CSR_DIS_CSR_DRN	0x00010000
-#define EBDMA_CSR_BURST_SZ_MASK	0x000c0000
-#define EBDMA_CSR_BURST_SZ_1	0x00080000
-#define EBDMA_CSR_BURST_SZ_4	0x00000000
-#define EBDMA_CSR_BURST_SZ_8	0x00040000
-#define EBDMA_CSR_BURST_SZ_16	0x000c0000
-#define EBDMA_CSR_DIAG_EN	0x00100000
-#define EBDMA_CSR_DIS_ERR_PEND	0x00400000
-#define EBDMA_CSR_TCI_DIS	0x00800000
-#define EBDMA_CSR_EN_NEXT	0x01000000
-#define EBDMA_CSR_DMA_ON	0x02000000
-#define EBDMA_CSR_A_LOADED	0x04000000
-#define EBDMA_CSR_NA_LOADED	0x08000000
-#define EBDMA_CSR_DEV_ID_MASK	0xf0000000
-
-#define EBUS_DMA_RESET_TIMEOUT	10000
-
-static void __ebus_dma_reset(struct ebus_dma_info *p, int no_drain)
-{
-	int i;
-	u32 val = 0;
-
-	writel(EBDMA_CSR_RESET, p->regs + EBDMA_CSR);
-	udelay(1);
-
-	if (no_drain)
-		return;
-
-	for (i = EBUS_DMA_RESET_TIMEOUT; i > 0; i--) {
-		val = readl(p->regs + EBDMA_CSR);
-
-		if (!(val & (EBDMA_CSR_DRAIN | EBDMA_CSR_CYC_PEND)))
-			break;
-		udelay(10);
-	}
-}
-
-static irqreturn_t ebus_dma_irq(int irq, void *dev_id, struct pt_regs *regs)
-{
-	struct ebus_dma_info *p = dev_id;
-	unsigned long flags;
-	u32 csr = 0;
-
-	spin_lock_irqsave(&p->lock, flags);
-	csr = readl(p->regs + EBDMA_CSR);
-	writel(csr, p->regs + EBDMA_CSR);
-	spin_unlock_irqrestore(&p->lock, flags);
-
-	if (csr & EBDMA_CSR_ERR_PEND) {
-		printk(KERN_CRIT "ebus_dma(%s): DMA error!\n", p->name);
-		p->callback(p, EBUS_DMA_EVENT_ERROR, p->client_cookie);
-		return IRQ_HANDLED;
-	} else if (csr & EBDMA_CSR_INT_PEND) {
-		p->callback(p,
-			    (csr & EBDMA_CSR_TC) ?
-			    EBUS_DMA_EVENT_DMA : EBUS_DMA_EVENT_DEVICE,
-			    p->client_cookie);
-		return IRQ_HANDLED;
-	}
-
-	return IRQ_NONE;
-
-}
-
-int ebus_dma_register(struct ebus_dma_info *p)
-{
-	u32 csr;
-
-	if (!p->regs)
-		return -EINVAL;
-	if (p->flags & ~(EBUS_DMA_FLAG_USE_EBDMA_HANDLER |
-			 EBUS_DMA_FLAG_TCI_DISABLE))
-		return -EINVAL;
-	if ((p->flags & EBUS_DMA_FLAG_USE_EBDMA_HANDLER) && !p->callback)
-		return -EINVAL;
-	if (!strlen(p->name))
-		return -EINVAL;
-
-	__ebus_dma_reset(p, 1);
-
-	csr = EBDMA_CSR_BURST_SZ_16 | EBDMA_CSR_EN_CNT;
-
-	if (p->flags & EBUS_DMA_FLAG_TCI_DISABLE)
-		csr |= EBDMA_CSR_TCI_DIS;
-
-	writel(csr, p->regs + EBDMA_CSR);
-
-	return 0;
-}
-EXPORT_SYMBOL(ebus_dma_register);
-
-int ebus_dma_irq_enable(struct ebus_dma_info *p, int on)
-{
-	unsigned long flags;
-	u32 csr;
-
-	if (on) {
-		if (p->flags & EBUS_DMA_FLAG_USE_EBDMA_HANDLER) {
-			if (request_irq(p->irq, ebus_dma_irq, SA_SHIRQ, p->name, p))
-				return -EBUSY;
-		}
-
-		spin_lock_irqsave(&p->lock, flags);
-		csr = readl(p->regs + EBDMA_CSR);
-		csr |= EBDMA_CSR_INT_EN;
-		writel(csr, p->regs + EBDMA_CSR);
-		spin_unlock_irqrestore(&p->lock, flags);
-	} else {
-		spin_lock_irqsave(&p->lock, flags);
-		csr = readl(p->regs + EBDMA_CSR);
-		csr &= ~EBDMA_CSR_INT_EN;
-		writel(csr, p->regs + EBDMA_CSR);
-		spin_unlock_irqrestore(&p->lock, flags);
-
-		if (p->flags & EBUS_DMA_FLAG_USE_EBDMA_HANDLER) {
-			free_irq(p->irq, p);
-		}
-	}
-
-	return 0;
-}
-EXPORT_SYMBOL(ebus_dma_irq_enable);
-
-void ebus_dma_unregister(struct ebus_dma_info *p)
-{
-	unsigned long flags;
-	u32 csr;
-	int irq_on = 0;
-
-	spin_lock_irqsave(&p->lock, flags);
-	csr = readl(p->regs + EBDMA_CSR);
-	if (csr & EBDMA_CSR_INT_EN) {
-		csr &= ~EBDMA_CSR_INT_EN;
-		writel(csr, p->regs + EBDMA_CSR);
-		irq_on = 1;
-	}
-	spin_unlock_irqrestore(&p->lock, flags);
-
-	if (irq_on)
-		free_irq(p->irq, p);
-}
-EXPORT_SYMBOL(ebus_dma_unregister);
-
-int ebus_dma_request(struct ebus_dma_info *p, dma_addr_t bus_addr, size_t len)
-{
-	unsigned long flags;
-	u32 csr;
-	int err;
-
-	if (len >= (1 << 24))
-		return -EINVAL;
-
-	spin_lock_irqsave(&p->lock, flags);
-	csr = readl(p->regs + EBDMA_CSR);
-	err = -EINVAL;
-	if (!(csr & EBDMA_CSR_EN_DMA))
-		goto out;
-	err = -EBUSY;
-	if (csr & EBDMA_CSR_NA_LOADED)
-		goto out;
-
-	writel(len,      p->regs + EBDMA_COUNT);
-	writel(bus_addr, p->regs + EBDMA_ADDR);
-	err = 0;
-
-out:
-	spin_unlock_irqrestore(&p->lock, flags);
-
-	return err;
-}
-EXPORT_SYMBOL(ebus_dma_request);
-
-void ebus_dma_prepare(struct ebus_dma_info *p, int write)
-{
-	unsigned long flags;
-	u32 csr;
-
-	spin_lock_irqsave(&p->lock, flags);
-	__ebus_dma_reset(p, 0);
-
-	csr = (EBDMA_CSR_INT_EN |
-	       EBDMA_CSR_EN_CNT |
-	       EBDMA_CSR_BURST_SZ_16 |
-	       EBDMA_CSR_EN_NEXT);
-
-	if (write)
-		csr |= EBDMA_CSR_WRITE;
-	if (p->flags & EBUS_DMA_FLAG_TCI_DISABLE)
-		csr |= EBDMA_CSR_TCI_DIS;
-
-	writel(csr, p->regs + EBDMA_CSR);
-
-	spin_unlock_irqrestore(&p->lock, flags);
-}
-EXPORT_SYMBOL(ebus_dma_prepare);
-
-unsigned int ebus_dma_residue(struct ebus_dma_info *p)
-{
-	return readl(p->regs + EBDMA_COUNT);
-}
-EXPORT_SYMBOL(ebus_dma_residue);
-
-unsigned int ebus_dma_addr(struct ebus_dma_info *p)
-{
-	return readl(p->regs + EBDMA_ADDR);
-}
-EXPORT_SYMBOL(ebus_dma_addr);
-
-void ebus_dma_enable(struct ebus_dma_info *p, int on)
-{
-	unsigned long flags;
-	u32 orig_csr, csr;
-
-	spin_lock_irqsave(&p->lock, flags);
-	orig_csr = csr = readl(p->regs + EBDMA_CSR);
-	if (on)
-		csr |= EBDMA_CSR_EN_DMA;
-	else
-		csr &= ~EBDMA_CSR_EN_DMA;
-	if ((orig_csr & EBDMA_CSR_EN_DMA) !=
-	    (csr & EBDMA_CSR_EN_DMA))
-		writel(csr, p->regs + EBDMA_CSR);
-	spin_unlock_irqrestore(&p->lock, flags);
-}
-EXPORT_SYMBOL(ebus_dma_enable);
-
-struct linux_ebus *ebus_chain = NULL;
-
-#ifdef CONFIG_SUN_AUXIO
-extern void auxio_probe(void);
-#endif
-
-static inline void *ebus_alloc(size_t size)
-{
-	void *mem;
-
-	mem = kmalloc(size, GFP_ATOMIC);
-	if (!mem)
-		panic("ebus_alloc: out of memory");
-	memset((char *)mem, 0, size);
-	return mem;
-}
-
-static void __init ebus_ranges_init(struct linux_ebus *ebus)
-{
-	int success;
-
-	ebus->num_ebus_ranges = 0;
-	success = prom_getproperty(ebus->prom_node, "ranges",
-				   (char *)ebus->ebus_ranges,
-				   sizeof(ebus->ebus_ranges));
-	if (success != -1)
-		ebus->num_ebus_ranges = (success/sizeof(struct linux_prom_ebus_ranges));
-}
-
-static void __init ebus_intmap_init(struct linux_ebus *ebus)
-{
-	int success;
-
-	ebus->num_ebus_intmap = 0;
-	success = prom_getproperty(ebus->prom_node, "interrupt-map",
-				   (char *)ebus->ebus_intmap,
-				   sizeof(ebus->ebus_intmap));
-	if (success == -1)
-		return;
-
-	ebus->num_ebus_intmap = (success/sizeof(struct linux_prom_ebus_intmap));
-
-	success = prom_getproperty(ebus->prom_node, "interrupt-map-mask",
-				   (char *)&ebus->ebus_intmask,
-				   sizeof(ebus->ebus_intmask));
-	if (success == -1) {
-		prom_printf("%s: can't get interrupt-map-mask\n", __FUNCTION__);
-		prom_halt();
-	}
-}
-
-int __init ebus_intmap_match(struct linux_ebus *ebus,
-			     struct linux_prom_registers *reg,
-			     int *interrupt)
-{
-	unsigned int hi, lo, irq;
-	int i;
-
-	if (!ebus->num_ebus_intmap)
-		return 0;
-
-	hi = reg->which_io & ebus->ebus_intmask.phys_hi;
-	lo = reg->phys_addr & ebus->ebus_intmask.phys_lo;
-	irq = *interrupt & ebus->ebus_intmask.interrupt;
-	for (i = 0; i < ebus->num_ebus_intmap; i++) {
-		if ((ebus->ebus_intmap[i].phys_hi == hi) &&
-		    (ebus->ebus_intmap[i].phys_lo == lo) &&
-		    (ebus->ebus_intmap[i].interrupt == irq)) {
-			*interrupt = ebus->ebus_intmap[i].cinterrupt;
-			return 0;
-		}
-	}
-	return -1;
-}
-
-void __init fill_ebus_child(int node, struct linux_prom_registers *preg,
-			    struct linux_ebus_child *dev, int non_standard_regs)
-{
-	int regs[PROMREG_MAX];
-	int irqs[PROMREG_MAX];
-	int i, len;
-
-	dev->prom_node = node;
-	prom_getstring(node, "name", dev->prom_name, sizeof(dev->prom_name));
-	printk(" (%s)", dev->prom_name);
-
-	len = prom_getproperty(node, "reg", (void *)regs, sizeof(regs));
-	dev->num_addrs = len / sizeof(regs[0]);
-
-	if (non_standard_regs) {
-		/* This is to handle reg properties which are not
-		 * in the parent relative format.  One example are
-		 * children of the i2c device on CompactPCI systems.
-		 *
-		 * So, for such devices we just record the property
-		 * raw in the child resources.
-		 */
-		for (i = 0; i < dev->num_addrs; i++)
-			dev->resource[i].start = regs[i];
-	} else {
-		for (i = 0; i < dev->num_addrs; i++) {
-			int rnum = regs[i];
-			if (rnum >= dev->parent->num_addrs) {
-				prom_printf("UGH: property for %s was %d, need < %d\n",
-					    dev->prom_name, len, dev->parent->num_addrs);
-				panic(__FUNCTION__);
-			}
-			dev->resource[i].start = dev->parent->resource[i].start;
-			dev->resource[i].end = dev->parent->resource[i].end;
-			dev->resource[i].flags = IORESOURCE_MEM;
-			dev->resource[i].name = dev->prom_name;
-		}
-	}
-
-	for (i = 0; i < PROMINTR_MAX; i++)
-		dev->irqs[i] = PCI_IRQ_NONE;
-
-	len = prom_getproperty(node, "interrupts", (char *)&irqs, sizeof(irqs));
-	if ((len == -1) || (len == 0)) {
-		dev->num_irqs = 0;
-		/*
-		 * Oh, well, some PROMs don't export interrupts
-		 * property to children of EBus devices...
-		 *
-		 * Be smart about PS/2 keyboard and mouse.
-		 */
-		if (!strcmp(dev->parent->prom_name, "8042")) {
-			if (!strcmp(dev->prom_name, "kb_ps2")) {
-				dev->num_irqs = 1;
-				dev->irqs[0] = dev->parent->irqs[0];
-			} else {
-				dev->num_irqs = 1;
-				dev->irqs[0] = dev->parent->irqs[1];
-			}
-		}
-	} else {
-		dev->num_irqs = len / sizeof(irqs[0]);
-		for (i = 0; i < dev->num_irqs; i++) {
-			struct pci_pbm_info *pbm = dev->bus->parent;
-			struct pci_controller_info *p = pbm->parent;
-
-			if (ebus_intmap_match(dev->bus, preg, &irqs[i]) != -1) {
-				dev->irqs[i] = p->irq_build(pbm,
-							    dev->bus->self,
-							    irqs[i]);
-			} else {
-				/* If we get a bogus interrupt property, just
-				 * record the raw value instead of punting.
-				 */
-				dev->irqs[i] = irqs[i];
-			}
-		}
-	}
-}
-
-static int __init child_regs_nonstandard(struct linux_ebus_device *dev)
-{
-	if (!strcmp(dev->prom_name, "i2c") ||
-	    !strcmp(dev->prom_name, "SUNW,lombus"))
-		return 1;
-	return 0;
-}
-
-void __init fill_ebus_device(int node, struct linux_ebus_device *dev)
-{
-	struct linux_prom_registers regs[PROMREG_MAX];
-	struct linux_ebus_child *child;
-	int irqs[PROMINTR_MAX];
-	int i, n, len;
-
-	dev->prom_node = node;
-	prom_getstring(node, "name", dev->prom_name, sizeof(dev->prom_name));
-	printk(" [%s", dev->prom_name);
-
-	len = prom_getproperty(node, "reg", (void *)regs, sizeof(regs));
-	if (len == -1) {
-		dev->num_addrs = 0;
-		goto probe_interrupts;
-	}
-
-	if (len % sizeof(struct linux_prom_registers)) {
-		prom_printf("UGH: proplen for %s was %d, need multiple of %d\n",
-			    dev->prom_name, len,
-			    (int)sizeof(struct linux_prom_registers));
-		prom_halt();
-	}
-	dev->num_addrs = len / sizeof(struct linux_prom_registers);
-
-	for (i = 0; i < dev->num_addrs; i++) {
-		/* XXX Learn how to interpret ebus ranges... -DaveM */
-		if (regs[i].which_io >= 0x10)
-			n = (regs[i].which_io - 0x10) >> 2;
-		else
-			n = regs[i].which_io;
-
-		dev->resource[i].start  = dev->bus->self->resource[n].start;
-		dev->resource[i].start += (unsigned long)regs[i].phys_addr;
-		dev->resource[i].end    =
-			(dev->resource[i].start + (unsigned long)regs[i].reg_size - 1UL);
-		dev->resource[i].flags  = IORESOURCE_MEM;
-		dev->resource[i].name   = dev->prom_name;
-		request_resource(&dev->bus->self->resource[n],
-				 &dev->resource[i]);
-	}
-
-probe_interrupts:
-	for (i = 0; i < PROMINTR_MAX; i++)
-		dev->irqs[i] = PCI_IRQ_NONE;
-
-	len = prom_getproperty(node, "interrupts", (char *)&irqs, sizeof(irqs));
-	if ((len == -1) || (len == 0)) {
-		dev->num_irqs = 0;
-	} else {
-		dev->num_irqs = len / sizeof(irqs[0]);
-		for (i = 0; i < dev->num_irqs; i++) {
-			struct pci_pbm_info *pbm = dev->bus->parent;
-			struct pci_controller_info *p = pbm->parent;
-
-			if (ebus_intmap_match(dev->bus, &regs[0], &irqs[i]) != -1) {
-				dev->irqs[i] = p->irq_build(pbm,
-							    dev->bus->self,
-							    irqs[i]);
-			} else {
-				/* If we get a bogus interrupt property, just
-				 * record the raw value instead of punting.
-				 */
-				dev->irqs[i] = irqs[i];
-			}
-		}
-	}
-
-	if ((node = prom_getchild(node))) {
-		printk(" ->");
-		dev->children = ebus_alloc(sizeof(struct linux_ebus_child));
-
-		child = dev->children;
-		child->next = NULL;
-		child->parent = dev;
-		child->bus = dev->bus;
-		fill_ebus_child(node, &regs[0],
-				child, child_regs_nonstandard(dev));
-
-		while ((node = prom_getsibling(node)) != 0) {
-			child->next = ebus_alloc(sizeof(struct linux_ebus_child));
-
-			child = child->next;
-			child->next = NULL;
-			child->parent = dev;
-			child->bus = dev->bus;
-			fill_ebus_child(node, &regs[0],
-					child, child_regs_nonstandard(dev));
-		}
-	}
-	printk("]");
-}
-
-static struct pci_dev *find_next_ebus(struct pci_dev *start, int *is_rio_p)
-{
-	struct pci_dev *pdev = start;
-
-	do {
-		pdev = pci_find_device(PCI_VENDOR_ID_SUN, PCI_ANY_ID, pdev);
-		if (pdev &&
-		    (pdev->device == PCI_DEVICE_ID_SUN_EBUS ||
-		     pdev->device == PCI_DEVICE_ID_SUN_RIO_EBUS))
-			break;
-	} while (pdev != NULL);
-
-	if (pdev && (pdev->device == PCI_DEVICE_ID_SUN_RIO_EBUS))
-		*is_rio_p = 1;
-	else
-		*is_rio_p = 0;
-
-	return pdev;
-}
-
-void __init ebus_init(void)
-{
-	struct pci_pbm_info *pbm;
-	struct linux_ebus_device *dev;
-	struct linux_ebus *ebus;
-	struct pci_dev *pdev;
-	struct pcidev_cookie *cookie;
-	int nd, ebusnd, is_rio;
-	int num_ebus = 0;
-
-	pdev = find_next_ebus(NULL, &is_rio);
-	if (!pdev) {
-		printk("ebus: No EBus's found.\n");
-		return;
-	}
-
-	cookie = pdev->sysdata;
-	ebusnd = cookie->prom_node;
-
-	ebus_chain = ebus = ebus_alloc(sizeof(struct linux_ebus));
-	ebus->next = NULL;
-	ebus->is_rio = is_rio;
-
-	while (ebusnd) {
-		/* SUNW,pci-qfe uses four empty ebuses on it.
-		   I think we should not consider them here,
-		   as they have half of the properties this
-		   code expects and once we do PCI hot-plug,
-		   we'd have to tweak with the ebus_chain
-		   in the runtime after initialization. -jj */
-		if (!prom_getchild (ebusnd)) {
-			pdev = find_next_ebus(pdev, &is_rio);
-			if (!pdev) {
-				if (ebus == ebus_chain) {
-					ebus_chain = NULL;
-					printk("ebus: No EBus's found.\n");
-					return;
-				}
-				break;
-			}
-			ebus->is_rio = is_rio;
-			cookie = pdev->sysdata;
-			ebusnd = cookie->prom_node;
-			continue;
-		}
-		printk("ebus%d:", num_ebus);
-
-		prom_getstring(ebusnd, "name", ebus->prom_name, sizeof(ebus->prom_name));
-		ebus->index = num_ebus;
-		ebus->prom_node = ebusnd;
-		ebus->self = pdev;
-		ebus->parent = pbm = cookie->pbm;
-
-		ebus_ranges_init(ebus);
-		ebus_intmap_init(ebus);
-
-		nd = prom_getchild(ebusnd);
-		if (!nd)
-			goto next_ebus;
-
-		ebus->devices = ebus_alloc(sizeof(struct linux_ebus_device));
-
-		dev = ebus->devices;
-		dev->next = NULL;
-		dev->children = NULL;
-		dev->bus = ebus;
-		fill_ebus_device(nd, dev);
-
-		while ((nd = prom_getsibling(nd)) != 0) {
-			dev->next = ebus_alloc(sizeof(struct linux_ebus_device));
-
-			dev = dev->next;
-			dev->next = NULL;
-			dev->children = NULL;
-			dev->bus = ebus;
-			fill_ebus_device(nd, dev);
-		}
-
-	next_ebus:
-		printk("\n");
-
-		pdev = find_next_ebus(pdev, &is_rio);
-		if (!pdev)
-			break;
-
-		cookie = pdev->sysdata;
-		ebusnd = cookie->prom_node;
-
-		ebus->next = ebus_alloc(sizeof(struct linux_ebus));
-		ebus = ebus->next;
-		ebus->next = NULL;
-		ebus->is_rio = is_rio;
-		++num_ebus;
-	}
-
-#ifdef CONFIG_SUN_AUXIO
-	auxio_probe();
-#endif
-}