alim15x3: Remove historical hacks, re-enable init_hwif for PowerPC

Some time ago we had to disable init_hwif callback for PowerPC builds.
That was because of a historical IRQ overwrite in the driver, which
was causing IDE malfunction on the MPC8610HPCD PowerPC boards.

It's unclear whether this overwrite is still useful, but it is proven
to cause a bit of harm, and today some PowerPC targets (Xilinx ML510,
as reported by Roderick Colenbrander) need the init_hwif, so we have
to re-enable it and remove the overwrite.

Reported-by: Roderick Colenbrander <thunderbird2k@gmail.com>
Suggested-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

diff --git a/drivers/ide/alim15x3.c b/drivers/ide/alim15x3.c
index 537da1cde16d6aa00c21d5b51d9c73aa6a7c71fa..e59b6dee9ae24e79196309a6c2031216b1924448 100644 (file)
--- a/drivers/ide/alim15x3.c
+++ b/drivers/ide/alim15x3.c
@@ -402,27 +402,23 @@ static u8 ali_cable_detect(ide_hwif_t *hwif)
        return cbl;
 }
 
-#if !defined(CONFIG_SPARC64) && !defined(CONFIG_PPC)
+#ifndef CONFIG_SPARC64
 /**
  *     init_hwif_ali15x3       -       Initialize the ALI IDE x86 stuff
  *     @hwif: interface to configure
  *
  *     Obtain the IRQ tables for an ALi based IDE solution on the PC
  *     class platforms. This part of the code isn't applicable to the
- *     Sparc and PowerPC systems.
+ *     Sparc systems.
  */
 
 static void __devinit init_hwif_ali15x3 (ide_hwif_t *hwif)
 {
-       struct pci_dev *dev = to_pci_dev(hwif->dev);
        u8 ideic, inmir;
        s8 irq_routing_table[] = { -1,  9, 3, 10, 4,  5, 7,  6,
                                      1, 11, 0, 12, 0, 14, 0, 15 };
        int irq = -1;
 
-       if (dev->device == PCI_DEVICE_ID_AL_M5229)
-               hwif->irq = hwif->channel ? 15 : 14;
-
        if (isa_dev) {
                /*
                 * read IDE interface control
@@ -455,7 +451,7 @@ static void __devinit init_hwif_ali15x3 (ide_hwif_t *hwif)
 }
 #else
 #define init_hwif_ali15x3 NULL
-#endif /* !defined(CONFIG_SPARC64) && !defined(CONFIG_PPC) */
+#endif /* CONFIG_SPARC64 */
 
 /**
  *     init_dma_ali15x3        -       set up DMA on ALi15x3