1 files changed, 1 insertions, 130 deletions

diff --git a/arch/xtensa/kernel/pci.c b/arch/xtensa/kernel/pci.c
index 5ca440a74316..3f32e275997a 100644
--- a/arch/xtensa/kernel/pci.c
+++ b/arch/xtensa/kernel/pci.c
@@ -1,20 +1,15 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
 /*
  * arch/xtensa/kernel/pci.c
  *
  * PCI bios-type initialisation for PCI machines
  *
- * 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.
- *
  * Copyright (C) 2001-2005 Tensilica Inc.
  *
  * Based largely on work from Cort (ppc/kernel/pci.c)
  * IO functions copied from sparc.
  *
  * Chris Zankel <chris@zankel.net>
- *
  */
 
 #include <linux/kernel.h>
@@ -29,23 +24,6 @@
 #include <asm/pci-bridge.h>
 #include <asm/platform.h>
 
-/* PCI Controller */
-
-
-/*
- * pcibios_alloc_controller
- * pcibios_enable_device
- * pcibios_fixups
- * pcibios_align_resource
- * pcibios_fixup_bus
- * pci_bus_add_device
- */
-
-static struct pci_controller *pci_ctrl_head;
-static struct pci_controller **pci_ctrl_tail = &pci_ctrl_head;
-
-static int pci_bus_count;
-
 /*
  * We need to avoid collisions with `mirrored' VGA ports
  * and other strange ISA hardware, so we always want the
@@ -80,81 +58,6 @@ pcibios_align_resource(void *data, const struct resource *res,
 	return start;
 }
 
-static void __init pci_controller_apertures(struct pci_controller *pci_ctrl,
-					    struct list_head *resources)
-{
-	struct resource *res;
-	unsigned long io_offset;
-	int i;
-
-	io_offset = (unsigned long)pci_ctrl->io_space.base;
-	res = &pci_ctrl->io_resource;
-	if (!res->flags) {
-		if (io_offset)
-			pr_err("I/O resource not set for host bridge %d\n",
-			       pci_ctrl->index);
-		res->start = 0;
-		res->end = IO_SPACE_LIMIT;
-		res->flags = IORESOURCE_IO;
-	}
-	res->start += io_offset;
-	res->end += io_offset;
-	pci_add_resource_offset(resources, res, io_offset);
-
-	for (i = 0; i < 3; i++) {
-		res = &pci_ctrl->mem_resources[i];
-		if (!res->flags) {
-			if (i > 0)
-				continue;
-			pr_err("Memory resource not set for host bridge %d\n",
-			       pci_ctrl->index);
-			res->start = 0;
-			res->end = ~0U;
-			res->flags = IORESOURCE_MEM;
-		}
-		pci_add_resource(resources, res);
-	}
-}
-
-static int __init pcibios_init(void)
-{
-	struct pci_controller *pci_ctrl;
-	struct list_head resources;
-	struct pci_bus *bus;
-	int next_busno = 0, ret;
-
-	pr_info("PCI: Probing PCI hardware\n");
-
-	/* Scan all of the recorded PCI controllers.  */
-	for (pci_ctrl = pci_ctrl_head; pci_ctrl; pci_ctrl = pci_ctrl->next) {
-		pci_ctrl->last_busno = 0xff;
-		INIT_LIST_HEAD(&resources);
-		pci_controller_apertures(pci_ctrl, &resources);
-		bus = pci_scan_root_bus(NULL, pci_ctrl->first_busno,
-					pci_ctrl->ops, pci_ctrl, &resources);
-		if (!bus)
-			continue;
-
-		pci_ctrl->bus = bus;
-		pci_ctrl->last_busno = bus->busn_res.end;
-		if (next_busno <= pci_ctrl->last_busno)
-			next_busno = pci_ctrl->last_busno+1;
-	}
-	pci_bus_count = next_busno;
-	ret = platform_pcibios_fixup();
-	if (ret)
-		return ret;
-
-	for (pci_ctrl = pci_ctrl_head; pci_ctrl; pci_ctrl = pci_ctrl->next) {
-		if (pci_ctrl->bus)
-			pci_bus_add_devices(pci_ctrl->bus);
-	}
-
-	return 0;
-}
-
-subsys_initcall(pcibios_init);
-
 void pcibios_fixup_bus(struct pci_bus *bus)
 {
 	if (bus->parent) {
@@ -163,38 +66,6 @@ void pcibios_fixup_bus(struct pci_bus *bus)
 	}
 }
 
-void pcibios_set_master(struct pci_dev *dev)
-{
-	/* No special bus mastering setup handling */
-}
-
-int pcibios_enable_device(struct pci_dev *dev, int mask)
-{
-	u16 cmd, old_cmd;
-	int idx;
-	struct resource *r;
-
-	pci_read_config_word(dev, PCI_COMMAND, &cmd);
-	old_cmd = cmd;
-	for (idx=0; idx<6; idx++) {
-		r = &dev->resource[idx];
-		if (!r->start && r->end) {
-			pci_err(dev, "can't enable device: resource collisions\n");
-			return -EINVAL;
-		}
-		if (r->flags & IORESOURCE_IO)
-			cmd |= PCI_COMMAND_IO;
-		if (r->flags & IORESOURCE_MEM)
-			cmd |= PCI_COMMAND_MEMORY;
-	}
-	if (cmd != old_cmd) {
-		pci_info(dev, "enabling device (%04x -> %04x)\n", old_cmd, cmd);
-		pci_write_config_word(dev, PCI_COMMAND, cmd);
-	}
-
-	return 0;
-}
-
 /*
  * Platform support for /proc/bus/pci/X/Y mmap()s.
  *  -- paulus.