For what it's worth... I tried applying
--- a/drivers/ata/ahci.c
+++ b/drivers/ata/ahci.c
@@ -516,6 +516,8 @@ static void ahci_save_initial_config(struct pci_dev *pdev,
* reset. Values without are used for driver operation.
*/
hpriv->saved_cap = cap = readl(mmio + HOST_CAP);
+ hpriv->saved_cap &= ( (1<<28) | (1<<17) );
+ hpriv->saved_cap |= (1 << 27);
hpriv->saved_port_map = port_map = readl(mmio + HOST_PORTS_IMPL);
/* some chips lie about 64bit support */
to 2.6.22-rc5, but it had no effect :*)
I'll await any comments from a kernel developer for now.
Please let me know if you want me to test something.
--
Carlo Wood <[email protected]>
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