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authorBenjamin Herrenschmidt <benh@kernel.crashing.org>2007-12-20 14:54:57 +1100
committerPaul Mackerras <paulus@samba.org>2007-12-20 16:18:11 +1100
commit549beb9ba3b03345cbd8e1233825d5b197a3f9f7 (patch)
treec192ba6cdfa13e9888d9e5f534d2862127d412cb /arch/powerpc/platforms/powermac
parent24f8c827f9b8ab2c8644f7ab85a1b1d58fc0fcf7 (diff)
[POWERPC] Merge 32 and 64 bits pcibios_enable_device
This merge the two implementations, based on the previously fixed up 32 bits one. The pcibios_enable_device_hook in ppc_md is now available for ppc64 use. Also remove the new unused "initial" parameter from it and fixup users. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/powerpc/platforms/powermac')
-rw-r--r--arch/powerpc/platforms/powermac/pci.c22
-rw-r--r--arch/powerpc/platforms/powermac/pmac.h2
2 files changed, 11 insertions, 13 deletions
diff --git a/arch/powerpc/platforms/powermac/pci.c b/arch/powerpc/platforms/powermac/pci.c
index 6bbf3c881711..1e51a8ee2b7d 100644
--- a/arch/powerpc/platforms/powermac/pci.c
+++ b/arch/powerpc/platforms/powermac/pci.c
@@ -1058,8 +1058,7 @@ void __init pmac_pci_init(void)
#endif
}
-int
-pmac_pci_enable_device_hook(struct pci_dev *dev, int initial)
+int pmac_pci_enable_device_hook(struct pci_dev *dev)
{
struct device_node* node;
int updatecfg = 0;
@@ -1101,26 +1100,25 @@ pmac_pci_enable_device_hook(struct pci_dev *dev, int initial)
updatecfg = 1;
}
+ /*
+ * Fixup various header fields on 32 bits. We don't do that on
+ * 64 bits as some of these have strange values behind the HT
+ * bridge and we must not, for example, enable MWI or set the
+ * cache line size on them.
+ */
+#ifdef CONFIG_PPC32
if (updatecfg) {
u16 cmd;
- /*
- * Make sure PCI is correctly configured
- *
- * We use old pci_bios versions of the function since, by
- * default, gmac is not powered up, and so will be absent
- * from the kernel initial PCI lookup.
- *
- * Should be replaced by 2.4 new PCI mechanisms and really
- * register the device.
- */
pci_read_config_word(dev, PCI_COMMAND, &cmd);
cmd |= PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER
| PCI_COMMAND_INVALIDATE;
pci_write_config_word(dev, PCI_COMMAND, cmd);
pci_write_config_byte(dev, PCI_LATENCY_TIMER, 16);
+
pci_write_config_byte(dev, PCI_CACHE_LINE_SIZE,
L1_CACHE_BYTES >> 2);
+#endif
}
return 0;
diff --git a/arch/powerpc/platforms/powermac/pmac.h b/arch/powerpc/platforms/powermac/pmac.h
index fcde070f7054..b3abaaf61eb4 100644
--- a/arch/powerpc/platforms/powermac/pmac.h
+++ b/arch/powerpc/platforms/powermac/pmac.h
@@ -26,7 +26,7 @@ extern void pmac_pci_init(void);
extern void pmac_nvram_update(void);
extern unsigned char pmac_nvram_read_byte(int addr);
extern void pmac_nvram_write_byte(int addr, unsigned char val);
-extern int pmac_pci_enable_device_hook(struct pci_dev *dev, int initial);
+extern int pmac_pci_enable_device_hook(struct pci_dev *dev);
extern void pmac_pcibios_after_init(void);
extern int of_show_percpuinfo(struct seq_file *m, int i);