sparc64: Kill unused local ISA bus layer.

No more drivers use this, and therefore it can die.
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

arch/sparc64/kernel/Makefile

@@ -15,7 +15,7 @@ obj-y		:= process.o setup.o cpu.o idprom.o \
 		   visemul.o prom.o of_device.o hvapi.o sstate.o mdesc.o
 
 obj-$(CONFIG_STACKTRACE) += stacktrace.o
-obj-$(CONFIG_PCI)	 += ebus.o isa.o pci_common.o \
+obj-$(CONFIG_PCI)	 += ebus.o pci_common.o \
 			    pci_psycho.o pci_sabre.o pci_schizo.o \
 			    pci_sun4v.o pci_sun4v_asm.o pci_fire.o
 obj-$(CONFIG_PCI_MSI)	+= pci_msi.o

arch/sparc64/kernel/isa.c

-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/pci.h>
-#include <linux/slab.h>
-#include <asm/oplib.h>
-#include <asm/prom.h>
-#include <asm/of_device.h>
-#include <asm/isa.h>
-
-struct sparc_isa_bridge *isa_chain;
-
-static void __init fatal_err(const char *reason)
-{
-	prom_printf("ISA: fatal error, %s.\n", reason);
-}
-
-static void __init report_dev(struct sparc_isa_device *isa_dev, int child)
-{
-	if (child)
-		printk(" (%s)", isa_dev->prom_node->name);
-	else
-		printk(" [%s", isa_dev->prom_node->name);
-}
-
-static void __init isa_dev_get_resource(struct sparc_isa_device *isa_dev)
-{
-	struct of_device *op = of_find_device_by_node(isa_dev->prom_node);
-
-	memcpy(&isa_dev->resource, &op->resource[0], sizeof(struct resource));
-}
-
-static void __init isa_dev_get_irq(struct sparc_isa_device *isa_dev)
-{
-	struct of_device *op = of_find_device_by_node(isa_dev->prom_node);
-
-	if (!op || !op->num_irqs) {
-		isa_dev->irq = PCI_IRQ_NONE;
-	} else {
-		isa_dev->irq = op->irqs[0];
-	}
-}
-
-static void __init isa_fill_children(struct sparc_isa_device *parent_isa_dev)
-{
-	struct device_node *dp = parent_isa_dev->prom_node->child;
-
-	if (!dp)
-		return;
-
-	printk(" ->");
-	while (dp) {
-		struct sparc_isa_device *isa_dev;
-
-		isa_dev = kzalloc(sizeof(*isa_dev), GFP_KERNEL);
-		if (!isa_dev) {
-			fatal_err("cannot allocate child isa_dev");
-			prom_halt();
-		}
-
-		/* Link it in to parent. */
-		isa_dev->next = parent_isa_dev->child;
-		parent_isa_dev->child = isa_dev;
-
-		isa_dev->bus = parent_isa_dev->bus;
-		isa_dev->prom_node = dp;
-
-		isa_dev_get_resource(isa_dev);
-		isa_dev_get_irq(isa_dev);
-
-		report_dev(isa_dev, 1);
-
-		dp = dp->sibling;
-	}
-}
-
-static void __init isa_fill_devices(struct sparc_isa_bridge *isa_br)
-{
-	struct device_node *dp = isa_br->prom_node->child;
-
-	while (dp) {
-		struct sparc_isa_device *isa_dev;
-		struct dev_archdata *sd;
-
-		isa_dev = kzalloc(sizeof(*isa_dev), GFP_KERNEL);
-		if (!isa_dev) {
-			printk(KERN_DEBUG "ISA: cannot allocate isa_dev");
-			return;
-		}
-
-		sd = &isa_dev->ofdev.dev.archdata;
-		sd->prom_node = dp;
-		sd->op = &isa_dev->ofdev;
-		sd->iommu = isa_br->ofdev.dev.parent->archdata.iommu;
-		sd->stc = isa_br->ofdev.dev.parent->archdata.stc;
-		sd->numa_node = isa_br->ofdev.dev.parent->archdata.numa_node;
-
-		isa_dev->ofdev.node = dp;
-		isa_dev->ofdev.dev.parent = &isa_br->ofdev.dev;
-		isa_dev->ofdev.dev.bus = &isa_bus_type;
-		sprintf(isa_dev->ofdev.dev.bus_id, "isa[%08x]", dp->node);
-
-		/* Register with core */
-		if (of_device_register(&isa_dev->ofdev) != 0) {
-			printk(KERN_DEBUG "isa: device registration error for %s!\n",
-			       dp->path_component_name);
-			kfree(isa_dev);
-			goto next_sibling;
-		}
-
-		/* Link it in. */
-		isa_dev->next = NULL;
-		if (isa_br->devices == NULL) {
-			isa_br->devices = isa_dev;
-		} else {
-			struct sparc_isa_device *tmp = isa_br->devices;
-
-			while (tmp->next)
-				tmp = tmp->next;
-
-			tmp->next = isa_dev;
-		}
-
-		isa_dev->bus = isa_br;
-		isa_dev->prom_node = dp;
-
-		isa_dev_get_resource(isa_dev);
-		isa_dev_get_irq(isa_dev);
-
-		report_dev(isa_dev, 0);
-
-		isa_fill_children(isa_dev);
-
-		printk("]");
-
-	next_sibling:
-		dp = dp->sibling;
-	}
-}
-
-void __init isa_init(void)
-{
-	struct pci_dev *pdev;
-	unsigned short vendor, device;
-	int index = 0;
-
-	vendor = PCI_VENDOR_ID_AL;
-	device = PCI_DEVICE_ID_AL_M1533;
-
-	pdev = NULL;
-	while ((pdev = pci_get_device(vendor, device, pdev)) != NULL) {
-		struct sparc_isa_bridge *isa_br;
-		struct device_node *dp;
-
-		dp = pci_device_to_OF_node(pdev);
-
-		isa_br = kzalloc(sizeof(*isa_br), GFP_KERNEL);
-		if (!isa_br) {
-			printk(KERN_DEBUG "isa: cannot allocate sparc_isa_bridge");
-			pci_dev_put(pdev);
-			return;
-		}
-
-		isa_br->ofdev.node = dp;
-		isa_br->ofdev.dev.parent = &pdev->dev;
-		isa_br->ofdev.dev.bus = &isa_bus_type;
-		sprintf(isa_br->ofdev.dev.bus_id, "isa%d", index);
-
-		/* Register with core */
-		if (of_device_register(&isa_br->ofdev) != 0) {
-			printk(KERN_DEBUG "isa: device registration error for %s!\n",
-			       dp->path_component_name);
-			kfree(isa_br);
-			pci_dev_put(pdev);
-			return;
-		}
-
-		/* Link it in. */
-		isa_br->next = isa_chain;
-		isa_chain = isa_br;
-
-		isa_br->self = pdev;
-		isa_br->index = index++;
-		isa_br->prom_node = dp;
-
-		printk("isa%d:", isa_br->index);
-
-		isa_fill_devices(isa_br);
-
-		printk("\n");
-	}
-}

arch/sparc64/kernel/pci.c

@@ -23,7 +23,6 @@
 #include <asm/pgtable.h>
 #include <asm/irq.h>
 #include <asm/ebus.h>
-#include <asm/isa.h>
 #include <asm/prom.h>
 #include <asm/apb.h>
 
@@ -885,7 +884,6 @@ static int __init pcibios_init(void)
 
 	pci_scan_each_controller_bus();
 
-	isa_init();
 	ebus_init();
 	power_init();
 

arch/sparc64/kernel/sparc64_ksyms.c

@@ -49,7 +49,6 @@
 #endif
 #ifdef CONFIG_PCI
 #include <asm/ebus.h>
-#include <asm/isa.h>
 #endif
 #include <asm/ns87303.h>
 #include <asm/timer.h>
@@ -187,7 +186,6 @@ EXPORT_SYMBOL(insw);
 EXPORT_SYMBOL(insl);
 #ifdef CONFIG_PCI
 EXPORT_SYMBOL(ebus_chain);
-EXPORT_SYMBOL(isa_chain);
 EXPORT_SYMBOL(pci_alloc_consistent);
 EXPORT_SYMBOL(pci_free_consistent);
 EXPORT_SYMBOL(pci_map_single);

include/asm-sparc64/floppy.h

@@ -293,7 +293,6 @@ static int sun_fd_eject(int drive)
 
 #ifdef CONFIG_PCI
 #include <asm/ebus.h>
-#include <asm/isa.h>
 #include <asm/ns87303.h>
 
 static struct ebus_dma_info sun_pci_fd_ebus_dma;

include/asm-sparc64/isa.h

-/* $Id: isa.h,v 1.1 2001/05/11 04:31:55 davem Exp $
- * isa.h: Sparc64 layer for PCI to ISA bridge devices.
- *
- * Copyright (C) 2001 David S. Miller (davem@redhat.com)
- */
-
-#ifndef __SPARC64_ISA_H
-#define __SPARC64_ISA_H
-
-#include <asm/oplib.h>
-#include <asm/prom.h>
-#include <asm/of_device.h>
-
-struct sparc_isa_bridge;
-
-struct sparc_isa_device {
-	struct of_device	ofdev;
-	struct sparc_isa_device	*next;
-	struct sparc_isa_device	*child;
-	struct sparc_isa_bridge	*bus;
-	struct device_node	*prom_node;
-	struct resource		resource;
-	unsigned int		irq;
-};
-#define to_isa_device(d) container_of(d, struct sparc_isa_device, ofdev.dev)
-
-struct sparc_isa_bridge {
-	struct of_device	ofdev;
-	struct sparc_isa_bridge	*next;
-	struct sparc_isa_device	*devices;
-	struct pci_dev		*self;
-	int			index;
-	struct device_node	*prom_node;
-};
-#define to_isa_bridge(d) container_of(d, struct sparc_isa_bridge, ofdev.dev)
-
-extern struct sparc_isa_bridge	*isa_chain;
-
-extern void isa_init(void);
-
-#define for_each_isa(bus)						\
-        for((bus) = isa_chain; (bus); (bus) = (bus)->next)
-
-#define for_each_isadev(dev, bus)					\
-        for((dev) = (bus)->devices; (dev); (dev) = (dev)->next)
-
-#endif /* !(__SPARC64_ISA_H) */