diff --git a/arch/m68k/mac/config.c b/arch/m68k/mac/config.c
index c0033f885ed4..b745cf20a71f 100644
--- a/arch/m68k/mac/config.c
+++ b/arch/m68k/mac/config.c
@@ -984,8 +984,37 @@ static int __init mac_platform_init(void)
 			.start = swim_base,
 			.end   = swim_base + 0x1FFF,
 		};
+		bool fast_fclk = false;
 
-		platform_device_register_simple("swim", -1, &swim_rsrc, 1);
+		/* Models in this list are supposed to run FCLK at 32 MHz */
+		switch (macintosh_config->ident) {
+		case MAC_MODEL_CCL:
+		case MAC_MODEL_CCLII:
+		case MAC_MODEL_LCIII:
+		case MAC_MODEL_Q605:
+		case MAC_MODEL_Q605_ACC:
+		case MAC_MODEL_Q610:
+		case MAC_MODEL_Q630:
+		case MAC_MODEL_Q650:
+		case MAC_MODEL_Q800:
+		case MAC_MODEL_P460:
+		case MAC_MODEL_P475:
+		case MAC_MODEL_P475F:
+		case MAC_MODEL_P520:
+		case MAC_MODEL_P550:
+		case MAC_MODEL_P575:
+		case MAC_MODEL_P588:
+		case MAC_MODEL_TV:
+		case MAC_MODEL_C610:
+		case MAC_MODEL_C650:
+		case MAC_MODEL_PB190:
+		case MAC_MODEL_PB520:
+			fast_fclk = true;
+			break;
+		}
+
+		platform_device_register_resndata(NULL, "swim", -1, &swim_rsrc, 1,
+						  &fast_fclk, sizeof(fast_fclk));
 	}
 
 	/*
diff --git a/drivers/block/swim.c b/drivers/block/swim.c
index b8384525fc9a..1ade5c497e10 100644
--- a/drivers/block/swim.c
+++ b/drivers/block/swim.c
@@ -806,8 +806,11 @@ static void swim_set_parameters(struct swim __iomem *base)
 		swim_write(base, parameter, mem[i]);
 }
 
-static int swim_floppy_init(struct swim_priv *swd)
+static int swim_floppy_init(struct platform_device *pdev)
 {
+	struct swim_priv *swd = platform_get_drvdata(pdev);
+	bool *data = pdev->dev.platform_data;
+	bool fast_fclk = data && *data;
 	struct queue_limits lim = {
 		.features		= BLK_FEAT_ROTATIONAL,
 	};
@@ -815,7 +818,7 @@ static int swim_floppy_init(struct swim_priv *swd)
 	int drive;
 	struct swim __iomem *base = swd->base;
 
-	swim_write(base, setup, S_IBM_DRIVE | S_FCLK_DIV2);
+	swim_write(base, setup, S_IBM_DRIVE | (fast_fclk ? S_FCLK_DIV2 : 0));
 
 	swim_set_parameters(base);
 
@@ -931,7 +934,7 @@ static int swim_probe(struct platform_device *dev)
 
 	swd->base = swim_base;
 
-	ret = swim_floppy_init(swd);
+	ret = swim_floppy_init(dev);
 	if (ret)
 		goto out_kfree;