atyfb: Fix XCLK frequency on Apple iBook1

Fix a regression on Apple iBook1.  Changes in the clock init code caused an
incorrect XCLK frequency to be used leading to a corrupted display.

Signed-off-by: Ville Syrjala <syrjala@sci.fi>
Cc: Olaf Hering <olaf@aepfle.de>
Cc: Antonino Daplas <adaplas@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

drivers/video/aty/atyfb_base.c

@@ -2290,15 +2290,6 @@ static int __devinit aty_init(struct fb_info *info)
 	init_waitqueue_head(&par->vblank.wait);
 	spin_lock_init(&par->int_lock);
 
-#ifdef CONFIG_PPC_PMAC
-	/* The Apple iBook1 uses non-standard memory frequencies. We detect it
-	 * and set the frequency manually. */
-	if (machine_is_compatible("PowerBook2,1")) {
-		par->pll_limits.mclk = 70;
-		par->pll_limits.xclk = 53;
-	}
-#endif
-
 #ifdef CONFIG_FB_ATY_GX
 	if (!M64_HAS(INTEGRATED)) {
 		u32 stat0;
@@ -2383,6 +2374,14 @@ static int __devinit aty_init(struct fb_info *info)
 			par->pll_limits.xclk = (par->pll_limits.xclk + 1) >> 1;
 	}
 #endif
+#ifdef CONFIG_PPC_PMAC
+	/* The Apple iBook1 uses non-standard memory frequencies. We detect it
+	 * and set the frequency manually. */
+	if (machine_is_compatible("PowerBook2,1")) {
+		par->pll_limits.mclk = 70;
+		par->pll_limits.xclk = 53;
+	}
+#endif
 
 	/* Allow command line to override clocks. */
 	if (pll)