diff options
Diffstat (limited to 'arch/m68k/kernel/pcibios.c')
| -rw-r--r-- | arch/m68k/kernel/pcibios.c | 51 |
1 files changed, 12 insertions, 39 deletions
diff --git a/arch/m68k/kernel/pcibios.c b/arch/m68k/kernel/pcibios.c index 931a31ff59dd..e6ab3f9ff5d8 100644 --- a/arch/m68k/kernel/pcibios.c +++ b/arch/m68k/kernel/pcibios.c @@ -1,11 +1,7 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * pci.c -- basic PCI support code * - * 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. - * * (C) Copyright 2011, Greg Ungerer <gerg@uclinux.org> */ @@ -48,41 +44,24 @@ resource_size_t pcibios_align_resource(void *data, const struct resource *res, */ int pcibios_enable_device(struct pci_dev *dev, int mask) { - struct resource *r; u16 cmd, newcmd; - int idx; - - pci_read_config_word(dev, PCI_COMMAND, &cmd); - newcmd = cmd; - - for (idx = 0; idx < 6; idx++) { - /* Only set up the requested stuff */ - if (!(mask & (1 << idx))) - continue; + int ret; - r = dev->resource + idx; - if (!r->start && r->end) { - pr_err(KERN_ERR "PCI: Device %s not available because of resource collisions\n", - pci_name(dev)); - return -EINVAL; - } - if (r->flags & IORESOURCE_IO) - newcmd |= PCI_COMMAND_IO; - if (r->flags & IORESOURCE_MEM) - newcmd |= PCI_COMMAND_MEMORY; - } + ret = pci_enable_resources(dev, mask); + if (ret < 0) + return ret; /* * Bridges (eg, cardbus bridges) need to be fully enabled */ - if ((dev->class >> 16) == PCI_BASE_CLASS_BRIDGE) + if ((dev->class >> 16) == PCI_BASE_CLASS_BRIDGE) { + pci_read_config_word(dev, PCI_COMMAND, &cmd); newcmd |= PCI_COMMAND_IO | PCI_COMMAND_MEMORY; - - - if (newcmd != cmd) { - pr_info("PCI: enabling device %s (0x%04x -> 0x%04x)\n", - pci_name(dev), cmd, newcmd); - pci_write_config_word(dev, PCI_COMMAND, newcmd); + if (newcmd != cmd) { + pr_info("PCI: enabling bridge %s (0x%04x -> 0x%04x)\n", + pci_name(dev), cmd, newcmd); + pci_write_config_word(dev, PCI_COMMAND, newcmd); + } } return 0; } @@ -96,9 +75,3 @@ void pcibios_fixup_bus(struct pci_bus *bus) pci_write_config_byte(dev, PCI_LATENCY_TIMER, 32); } } - -char *pcibios_setup(char *str) -{ - return str; -} - |