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authorBjorn Helgaas <bhelgaas@google.com>2013-10-22 20:55:46 -0600
committerBjorn Helgaas <bhelgaas@google.com>2013-10-29 16:55:58 -0600
commit9ba205c384fc27cc7ff761744b012f1956a7e3e4 (patch)
treec9588faa98781468c1edd4d31252da961f4293e7 /arch
parent869a16157d1ac92a61770be0bc1cf83fbe99d724 (diff)
downloadlinux-9ba205c384fc27cc7ff761744b012f1956a7e3e4.tar.gz
frv/PCI: Remove pcibios_last_bus
pcibios_last_bus was apparently copied from x86. On FR-V, it is statically initialized to -1 and never changed unless the user boots with "pci=lastbus=<X>". I doubt that option is used on FR-V, so this patch removes all the code related to pcibios_last_bus. Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Diffstat (limited to 'arch')
-rw-r--r--arch/frv/mb93090-mb00/pci-frv.h1
-rw-r--r--arch/frv/mb93090-mb00/pci-vdk.c36
2 files changed, 0 insertions, 37 deletions
diff --git a/arch/frv/mb93090-mb00/pci-frv.h b/arch/frv/mb93090-mb00/pci-frv.h
index 76c4e73d643..a7e487fe76e 100644
--- a/arch/frv/mb93090-mb00/pci-frv.h
+++ b/arch/frv/mb93090-mb00/pci-frv.h
@@ -30,7 +30,6 @@ void pcibios_resource_survey(void);
/* pci-vdk.c */
-extern int __nongpreldata pcibios_last_bus;
extern struct pci_ops *__nongpreldata pci_root_ops;
/* pci-irq.c */
diff --git a/arch/frv/mb93090-mb00/pci-vdk.c b/arch/frv/mb93090-mb00/pci-vdk.c
index deb67843693..efa5d65b000 100644
--- a/arch/frv/mb93090-mb00/pci-vdk.c
+++ b/arch/frv/mb93090-mb00/pci-vdk.c
@@ -25,7 +25,6 @@
unsigned int __nongpreldata pci_probe = 1;
-int __nongpreldata pcibios_last_bus = -1;
struct pci_ops *__nongpreldata pci_root_ops;
/*
@@ -220,37 +219,6 @@ static struct pci_ops * __init pci_check_direct(void)
}
/*
- * Discover remaining PCI buses in case there are peer host bridges.
- * We use the number of last PCI bus provided by the PCI BIOS.
- */
-static void __init pcibios_fixup_peer_bridges(void)
-{
- struct pci_bus bus;
- struct pci_dev dev;
- int n;
- u16 l;
-
- if (pcibios_last_bus <= 0 || pcibios_last_bus >= 0xff)
- return;
- printk("PCI: Peer bridge fixup\n");
- for (n=0; n <= pcibios_last_bus; n++) {
- if (pci_find_bus(0, n))
- continue;
- bus.number = n;
- bus.ops = pci_root_ops;
- dev.bus = &bus;
- for(dev.devfn=0; dev.devfn<256; dev.devfn += 8)
- if (!pci_read_config_word(&dev, PCI_VENDOR_ID, &l) &&
- l != 0x0000 && l != 0xffff) {
- printk("Found device at %02x:%02x [%04x]\n", n, dev.devfn, l);
- printk("PCI: Discovered peer bus %02x\n", n);
- pci_scan_bus(n, pci_root_ops, NULL);
- break;
- }
- }
-}
-
-/*
* Exceptions for specific devices. Usually work-arounds for fatal design flaws.
*/
@@ -418,7 +386,6 @@ int __init pcibios_init(void)
pci_scan_root_bus(NULL, 0, pci_root_ops, NULL, &resources);
pcibios_irq_init();
- pcibios_fixup_peer_bridges();
pcibios_fixup_irqs();
pcibios_resource_survey();
@@ -432,9 +399,6 @@ char * __init pcibios_setup(char *str)
if (!strcmp(str, "off")) {
pci_probe = 0;
return NULL;
- } else if (!strncmp(str, "lastbus=", 8)) {
- pcibios_last_bus = simple_strtol(str+8, NULL, 0);
- return NULL;
}
return str;
}