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authorBenjamin Herrenschmidt <benh@kernel.crashing.org>2005-11-23 17:56:06 +1100
committerPaul Mackerras <paulus@samba.org>2006-01-09 14:49:50 +1100
commit463ce0e103f419f51b1769111e73fe8bb305d0ec (patch)
treeb4ffced87b886d81b518790fcaf841dd006e8068 /arch/powerpc/kernel/pci_64.c
parentd1405b869850982f05c7ec0d3f137ca27588192f (diff)
[PATCH] powerpc: serial port discovery (#2)
This moves the discovery of legacy serial ports to a separate file, makes it common to ppc32 and ppc64, and reworks it to use the new OF address translators to get to the ports early. This new version can also detect some PCI serial cards using legacy chips and will probably match those discovered port with the default console choice. Only ppc64 gets udbg still yet, unifying udbg isn't finished yet. It also adds some speed-probing code to udbg so that the default console can come up at the same speed it was set to by the firmware. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/powerpc/kernel/pci_64.c')
-rw-r--r--arch/powerpc/kernel/pci_64.c15
1 files changed, 15 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/pci_64.c b/arch/powerpc/kernel/pci_64.c
index 8b6008ab217d..9a80cdf9efeb 100644
--- a/arch/powerpc/kernel/pci_64.c
+++ b/arch/powerpc/kernel/pci_64.c
@@ -1223,6 +1223,7 @@ void __devinit pcibios_fixup_device_resources(struct pci_dev *dev,
}
EXPORT_SYMBOL(pcibios_fixup_device_resources);
+
static void __devinit do_bus_setup(struct pci_bus *bus)
{
struct pci_dev *dev;
@@ -1306,6 +1307,20 @@ void pci_resource_to_user(const struct pci_dev *dev, int bar,
*end = rsrc->end + offset;
}
+struct pci_controller* pci_find_hose_for_OF_device(struct device_node* node)
+{
+ if (!have_of)
+ return NULL;
+ while(node) {
+ struct pci_controller *hose, *tmp;
+ list_for_each_entry_safe(hose, tmp, &hose_list, list_node)
+ if (hose->arch_data == node)
+ return hose;
+ node = node->parent;
+ }
+ return NULL;
+}
+
#endif /* CONFIG_PPC_MULTIPLATFORM */