2bdd1b031b
Previously, one would have to specifically choose CONFIG_OLPC and CONFIG_PCI_GOOLPC in order to enable PCI_OLPC. That doesn't really work for distro kernels, so this patch allows one to choose CONFIG_OLPC and CONFIG_PCI_GOANY in order to build in OLPC support in a generic kernel (as requested by Robert Millan). This also moves GOOLPC before GOANY in the menuconfig list. Finally, make pci_access_init return early if we detect OLPC hardware. There's no need to continue probing stuff, and pci_pcbios_init specifically trashes our settings (we didn't run into that before because PCI_GOANY wasn't supported). Signed-off-by: Andres Salomon <dilinger@debian.org> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
44 lines
972 B
C
44 lines
972 B
C
#include <linux/pci.h>
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#include <linux/init.h>
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#include "pci.h"
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/* arch_initcall has too random ordering, so call the initializers
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in the right sequence from here. */
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static __init int pci_access_init(void)
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{
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#ifdef CONFIG_PCI_DIRECT
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int type = 0;
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type = pci_direct_probe();
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#endif
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pci_mmcfg_early_init();
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#ifdef CONFIG_PCI_OLPC
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if (!pci_olpc_init())
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return 0; /* skip additional checks if it's an XO */
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#endif
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#ifdef CONFIG_PCI_BIOS
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pci_pcbios_init();
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#endif
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/*
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* don't check for raw_pci_ops here because we want pcbios as last
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* fallback, yet it's needed to run first to set pcibios_last_bus
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* in case legacy PCI probing is used. otherwise detecting peer busses
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* fails.
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*/
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#ifdef CONFIG_PCI_DIRECT
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pci_direct_init(type);
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#endif
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if (!raw_pci_ops && !raw_pci_ext_ops)
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printk(KERN_ERR
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"PCI: Fatal: No config space access function found\n");
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dmi_check_pciprobe();
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dmi_check_skip_isa_align();
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return 0;
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}
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arch_initcall(pci_access_init);
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