hpt366: write the full 4 bytes of ROM address, not just low 1 byte
Linus Torvalds [Sun, 11 Sep 2005 16:22:50 +0000 (09:22 -0700)]
This is one heck of a confused driver.  It uses a byte write to a dword
register to enable a ROM resource that it doesn't even seem to be using.

"Lost and wandering in the desert of confusion"

Signed-off-by: Linus Torvalds <torvalds@osdl.org>

drivers/ide/pci/hpt366.c

index 7b64db1..127619a 100644 (file)
@@ -1334,9 +1334,13 @@ static int __devinit init_hpt366(struct pci_dev *dev)
 static unsigned int __devinit init_chipset_hpt366(struct pci_dev *dev, const char *name)
 {
        int ret = 0;
-       /* FIXME: Not portable */
+
+       /*
+        * FIXME: Not portable. Also, why do we enable the ROM in the first place?
+        * We don't seem to be using it.
+        */
        if (dev->resource[PCI_ROM_RESOURCE].start)
-               pci_write_config_byte(dev, PCI_ROM_ADDRESS,
+               pci_write_config_dword(dev, PCI_ROM_ADDRESS,
                        dev->resource[PCI_ROM_RESOURCE].start | PCI_ROM_ADDRESS_ENABLE);
 
        pci_write_config_byte(dev, PCI_CACHE_LINE_SIZE, (L1_CACHE_BYTES / 4));