[POWERPC] pasemi: Move electra-ide to pata_of_platform

Move electra-ide glue over to the new pata_of_platform framework, and
add the quirks needed to that driver.

Signed-off-by: Olof Johansson <olof@lixom.net>

1 files changed, 15 insertions, 5 deletions

diff --git a/drivers/ata/pata_of_platform.c b/drivers/ata/pata_of_platform.c
index b7bc4e4a0a2..938f48a807e 100644
--- a/drivers/ata/pata_of_platform.c
+++ b/drivers/ata/pata_of_platform.c
@@ -34,11 +34,20 @@ static int __devinit pata_of_platform_probe(struct of_device *ofdev,
                 return -EINVAL;
         }
 
-        ret = of_address_to_resource(dn, 1, &ctl_res);
-        if (ret) {
-                dev_err(&ofdev->dev, "can't get CTL address from "
-                        "device tree\n");
-                return -EINVAL;
+        if (of_device_is_compatible(dn, "electra-ide")) {
+                /* Altstatus is really at offset 0x3f6 from the primary window
+                 * on electra-ide. Adjust ctl_res and io_res accordingly.
+                 */
+                ctl_res = io_res;
+                ctl_res.start = ctl_res.start+0x3f6;
+                io_res.end = ctl_res.start-1;
+        } else {
+                ret = of_address_to_resource(dn, 1, &ctl_res);
+                if (ret) {
+                        dev_err(&ofdev->dev, "can't get CTL address from "
+                                "device tree\n");
+                        return -EINVAL;
+                }
         }
 
         ret = of_irq_to_resource(dn, 0, &irq_res);
@@ -76,6 +85,7 @@ static int __devexit pata_of_platform_remove(struct of_device *ofdev)
 
 static struct of_device_id pata_of_platform_match[] = {
         { .compatible = "ata-generic", },
+        { .compatible = "electra-ide", },
         {},
 };
 MODULE_DEVICE_TABLE(of, pata_of_platform_match);