m68k: mac: Revisit floppy disc controller base addresses

Rename floppy_type macros to make them more consistent with the scsi_type
macros, which are named after classes of models with similar memory maps.

The MAC_FLOPPY_OLD symbol is introduced to change the relevant base
address from 0x50F00000 to 0x50000000 (consistent with MAC_SCSI_OLD).

The documentation for LC-class machines has the IO devices at offsets
from $50F00000. Use these addresses for MAC_FLOPPY_LC (consistent with
MAC_SCSI_LC) because they may not be aliased elsewhere in the memory map.

Add comments with controller type information from 'Designing Cards and
Drivers for the Macintosh Family', relevant Developer Notes and
http://mess.redump.net/mess/driver_info/mac_technical_notes

Adopt phys_addr_t to avoid type casts.

Signed-off-by: Finn Thain <fthain@telegraphics.com.au>
Tested-by: Stan Johnson <userm57@yahoo.com>
Acked-by: Laurent Vivier <lvivier@redhat.com>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>

2 files changed, 69 insertions, 69 deletions

diff --git a/arch/m68k/include/asm/macintosh.h b/arch/m68k/include/asm/macintosh.h
index d9a08bed4b12..8f0698bca3dc 100644
--- a/arch/m68k/include/asm/macintosh.h
+++ b/arch/m68k/include/asm/macintosh.h
@@ -82,11 +82,11 @@ struct mac_model
 #define MAC_EXP_PDS_NUBUS	3 /* Accepts PDS card and/or NuBus card(s) */
 #define MAC_EXP_PDS_COMM	4 /* Accepts PDS card or Comm Slot card */
 
-#define MAC_FLOPPY_IWM		0
-#define MAC_FLOPPY_SWIM_ADDR1	1
-#define MAC_FLOPPY_SWIM_ADDR2	2
-#define MAC_FLOPPY_SWIM_IOP	3
-#define MAC_FLOPPY_AV		4
+#define MAC_FLOPPY_UNSUPPORTED	0
+#define MAC_FLOPPY_SWIM_IOP	1
+#define MAC_FLOPPY_OLD		2
+#define MAC_FLOPPY_QUADRA	3
+#define MAC_FLOPPY_LC		4
 
 extern struct mac_model *macintosh_config;
 
diff --git a/arch/m68k/mac/config.c b/arch/m68k/mac/config.c
index 205ac75da13d..611f73bfc87c 100644
--- a/arch/m68k/mac/config.c
+++ b/arch/m68k/mac/config.c
@@ -209,7 +209,7 @@ static struct mac_model mac_data_table[] = {
 		.scsi_type	= MAC_SCSI_OLD,
 		.scc_type	= MAC_SCC_II,
 		.expansion_type	= MAC_EXP_NUBUS,
-		.floppy_type	= MAC_FLOPPY_IWM,
+		.floppy_type	= MAC_FLOPPY_UNSUPPORTED, /* IWM */
 	},
 
 	/*
@@ -224,7 +224,7 @@ static struct mac_model mac_data_table[] = {
 		.scsi_type	= MAC_SCSI_OLD,
 		.scc_type	= MAC_SCC_II,
 		.expansion_type	= MAC_EXP_NUBUS,
-		.floppy_type	= MAC_FLOPPY_IWM,
+		.floppy_type	= MAC_FLOPPY_UNSUPPORTED, /* IWM */
 	}, {
 		.ident		= MAC_MODEL_IIX,
 		.name		= "IIx",
@@ -233,7 +233,7 @@ static struct mac_model mac_data_table[] = {
 		.scsi_type	= MAC_SCSI_OLD,
 		.scc_type	= MAC_SCC_II,
 		.expansion_type	= MAC_EXP_NUBUS,
-		.floppy_type	= MAC_FLOPPY_SWIM_ADDR2,
+		.floppy_type	= MAC_FLOPPY_OLD, /* SWIM */
 	}, {
 		.ident		= MAC_MODEL_IICX,
 		.name		= "IIcx",
@@ -242,7 +242,7 @@ static struct mac_model mac_data_table[] = {
 		.scsi_type	= MAC_SCSI_OLD,
 		.scc_type	= MAC_SCC_II,
 		.expansion_type	= MAC_EXP_NUBUS,
-		.floppy_type	= MAC_FLOPPY_SWIM_ADDR2,
+		.floppy_type	= MAC_FLOPPY_OLD, /* SWIM */
 	}, {
 		.ident		= MAC_MODEL_SE30,
 		.name		= "SE/30",
@@ -251,7 +251,7 @@ static struct mac_model mac_data_table[] = {
 		.scsi_type	= MAC_SCSI_OLD,
 		.scc_type	= MAC_SCC_II,
 		.expansion_type	= MAC_EXP_PDS,
-		.floppy_type	= MAC_FLOPPY_SWIM_ADDR2,
+		.floppy_type	= MAC_FLOPPY_OLD, /* SWIM */
 	},
 
 	/*
@@ -269,7 +269,7 @@ static struct mac_model mac_data_table[] = {
 		.scsi_type	= MAC_SCSI_OLD,
 		.scc_type	= MAC_SCC_II,
 		.expansion_type	= MAC_EXP_NUBUS,
-		.floppy_type	= MAC_FLOPPY_SWIM_ADDR2,
+		.floppy_type	= MAC_FLOPPY_OLD, /* SWIM */
 	}, {
 		.ident		= MAC_MODEL_IIFX,
 		.name		= "IIfx",
@@ -278,7 +278,7 @@ static struct mac_model mac_data_table[] = {
 		.scsi_type	= MAC_SCSI_IIFX,
 		.scc_type	= MAC_SCC_IOP,
 		.expansion_type	= MAC_EXP_PDS_NUBUS,
-		.floppy_type	= MAC_FLOPPY_SWIM_IOP,
+		.floppy_type	= MAC_FLOPPY_SWIM_IOP, /* SWIM */
 	}, {
 		.ident		= MAC_MODEL_IISI,
 		.name		= "IIsi",
@@ -287,7 +287,7 @@ static struct mac_model mac_data_table[] = {
 		.scsi_type	= MAC_SCSI_OLD,
 		.scc_type	= MAC_SCC_II,
 		.expansion_type	= MAC_EXP_PDS_NUBUS,
-		.floppy_type	= MAC_FLOPPY_SWIM_ADDR2,
+		.floppy_type	= MAC_FLOPPY_OLD, /* SWIM */
 	}, {
 		.ident		= MAC_MODEL_IIVI,
 		.name		= "IIvi",
@@ -296,7 +296,7 @@ static struct mac_model mac_data_table[] = {
 		.scsi_type	= MAC_SCSI_LC,
 		.scc_type	= MAC_SCC_II,
 		.expansion_type	= MAC_EXP_NUBUS,
-		.floppy_type	= MAC_FLOPPY_SWIM_ADDR2,
+		.floppy_type	= MAC_FLOPPY_LC, /* SWIM */
 	}, {
 		.ident		= MAC_MODEL_IIVX,
 		.name		= "IIvx",
@@ -305,7 +305,7 @@ static struct mac_model mac_data_table[] = {
 		.scsi_type	= MAC_SCSI_LC,
 		.scc_type	= MAC_SCC_II,
 		.expansion_type	= MAC_EXP_NUBUS,
-		.floppy_type	= MAC_FLOPPY_SWIM_ADDR2,
+		.floppy_type	= MAC_FLOPPY_LC, /* SWIM */
 	},
 
 	/*
@@ -319,7 +319,7 @@ static struct mac_model mac_data_table[] = {
 		.via_type	= MAC_VIA_IICI,
 		.scsi_type	= MAC_SCSI_LC,
 		.scc_type	= MAC_SCC_II,
-		.floppy_type	= MAC_FLOPPY_SWIM_ADDR2,
+		.floppy_type	= MAC_FLOPPY_LC, /* SWIM */
 	}, {
 		.ident		= MAC_MODEL_CCL,
 		.name		= "Color Classic",
@@ -328,7 +328,7 @@ static struct mac_model mac_data_table[] = {
 		.scsi_type	= MAC_SCSI_LC,
 		.scc_type	= MAC_SCC_II,
 		.expansion_type	= MAC_EXP_PDS,
-		.floppy_type	= MAC_FLOPPY_SWIM_ADDR2,
+		.floppy_type	= MAC_FLOPPY_LC, /* SWIM 2 */
 	}, {
 		.ident		= MAC_MODEL_CCLII,
 		.name		= "Color Classic II",
@@ -337,7 +337,7 @@ static struct mac_model mac_data_table[] = {
 		.scsi_type	= MAC_SCSI_LC,
 		.scc_type	= MAC_SCC_II,
 		.expansion_type	= MAC_EXP_PDS,
-		.floppy_type	= MAC_FLOPPY_SWIM_ADDR2,
+		.floppy_type	= MAC_FLOPPY_LC, /* SWIM 2 */
 	},
 
 	/*
@@ -352,7 +352,7 @@ static struct mac_model mac_data_table[] = {
 		.scsi_type	= MAC_SCSI_LC,
 		.scc_type	= MAC_SCC_II,
 		.expansion_type	= MAC_EXP_PDS,
-		.floppy_type	= MAC_FLOPPY_SWIM_ADDR2,
+		.floppy_type	= MAC_FLOPPY_LC, /* SWIM */
 	}, {
 		.ident		= MAC_MODEL_LCII,
 		.name		= "LC II",
@@ -361,7 +361,7 @@ static struct mac_model mac_data_table[] = {
 		.scsi_type	= MAC_SCSI_LC,
 		.scc_type	= MAC_SCC_II,
 		.expansion_type	= MAC_EXP_PDS,
-		.floppy_type	= MAC_FLOPPY_SWIM_ADDR2,
+		.floppy_type	= MAC_FLOPPY_LC, /* SWIM */
 	}, {
 		.ident		= MAC_MODEL_LCIII,
 		.name		= "LC III",
@@ -370,7 +370,7 @@ static struct mac_model mac_data_table[] = {
 		.scsi_type	= MAC_SCSI_LC,
 		.scc_type	= MAC_SCC_II,
 		.expansion_type	= MAC_EXP_PDS,
-		.floppy_type	= MAC_FLOPPY_SWIM_ADDR2,
+		.floppy_type	= MAC_FLOPPY_LC, /* SWIM 2 */
 	},
 
 	/*
@@ -391,7 +391,7 @@ static struct mac_model mac_data_table[] = {
 		.scsi_type	= MAC_SCSI_QUADRA,
 		.scc_type	= MAC_SCC_QUADRA,
 		.expansion_type	= MAC_EXP_PDS,
-		.floppy_type	= MAC_FLOPPY_SWIM_ADDR1,
+		.floppy_type	= MAC_FLOPPY_QUADRA, /* SWIM 2 */
 	}, {
 		.ident		= MAC_MODEL_Q605_ACC,
 		.name		= "Quadra 605",
@@ -400,7 +400,7 @@ static struct mac_model mac_data_table[] = {
 		.scsi_type	= MAC_SCSI_QUADRA,
 		.scc_type	= MAC_SCC_QUADRA,
 		.expansion_type	= MAC_EXP_PDS,
-		.floppy_type	= MAC_FLOPPY_SWIM_ADDR1,
+		.floppy_type	= MAC_FLOPPY_QUADRA, /* SWIM 2 */
 	}, {
 		.ident		= MAC_MODEL_Q610,
 		.name		= "Quadra 610",
@@ -410,7 +410,7 @@ static struct mac_model mac_data_table[] = {
 		.scc_type	= MAC_SCC_QUADRA,
 		.ether_type	= MAC_ETHER_SONIC,
 		.expansion_type	= MAC_EXP_PDS_NUBUS,
-		.floppy_type	= MAC_FLOPPY_SWIM_ADDR1,
+		.floppy_type	= MAC_FLOPPY_QUADRA, /* SWIM 2 */
 	}, {
 		.ident		= MAC_MODEL_Q630,
 		.name		= "Quadra 630",
@@ -420,7 +420,7 @@ static struct mac_model mac_data_table[] = {
 		.ide_type	= MAC_IDE_QUADRA,
 		.scc_type	= MAC_SCC_QUADRA,
 		.expansion_type	= MAC_EXP_PDS_COMM,
-		.floppy_type	= MAC_FLOPPY_SWIM_ADDR1,
+		.floppy_type	= MAC_FLOPPY_QUADRA, /* SWIM 2 */
 	}, {
 		.ident		= MAC_MODEL_Q650,
 		.name		= "Quadra 650",
@@ -430,7 +430,7 @@ static struct mac_model mac_data_table[] = {
 		.scc_type	= MAC_SCC_QUADRA,
 		.ether_type	= MAC_ETHER_SONIC,
 		.expansion_type	= MAC_EXP_PDS_NUBUS,
-		.floppy_type	= MAC_FLOPPY_SWIM_ADDR1,
+		.floppy_type	= MAC_FLOPPY_QUADRA, /* SWIM 2 */
 	},
 	/* The Q700 does have a NS Sonic */
 	{
@@ -442,7 +442,7 @@ static struct mac_model mac_data_table[] = {
 		.scc_type	= MAC_SCC_QUADRA,
 		.ether_type	= MAC_ETHER_SONIC,
 		.expansion_type	= MAC_EXP_PDS_NUBUS,
-		.floppy_type	= MAC_FLOPPY_SWIM_ADDR1,
+		.floppy_type	= MAC_FLOPPY_QUADRA, /* SWIM */
 	}, {
 		.ident		= MAC_MODEL_Q800,
 		.name		= "Quadra 800",
@@ -452,7 +452,7 @@ static struct mac_model mac_data_table[] = {
 		.scc_type	= MAC_SCC_QUADRA,
 		.ether_type	= MAC_ETHER_SONIC,
 		.expansion_type	= MAC_EXP_PDS_NUBUS,
-		.floppy_type	= MAC_FLOPPY_SWIM_ADDR1,
+		.floppy_type	= MAC_FLOPPY_QUADRA, /* SWIM 2 */
 	}, {
 		.ident		= MAC_MODEL_Q840,
 		.name		= "Quadra 840AV",
@@ -462,7 +462,7 @@ static struct mac_model mac_data_table[] = {
 		.scc_type	= MAC_SCC_PSC,
 		.ether_type	= MAC_ETHER_MACE,
 		.expansion_type	= MAC_EXP_NUBUS,
-		.floppy_type	= MAC_FLOPPY_AV,
+		.floppy_type	= MAC_FLOPPY_UNSUPPORTED, /* New Age */
 	}, {
 		.ident		= MAC_MODEL_Q900,
 		.name		= "Quadra 900",
@@ -472,7 +472,7 @@ static struct mac_model mac_data_table[] = {
 		.scc_type	= MAC_SCC_IOP,
 		.ether_type	= MAC_ETHER_SONIC,
 		.expansion_type	= MAC_EXP_PDS_NUBUS,
-		.floppy_type	= MAC_FLOPPY_SWIM_IOP,
+		.floppy_type	= MAC_FLOPPY_SWIM_IOP, /* SWIM */
 	}, {
 		.ident		= MAC_MODEL_Q950,
 		.name		= "Quadra 950",
@@ -482,7 +482,7 @@ static struct mac_model mac_data_table[] = {
 		.scc_type	= MAC_SCC_IOP,
 		.ether_type	= MAC_ETHER_SONIC,
 		.expansion_type	= MAC_EXP_PDS_NUBUS,
-		.floppy_type	= MAC_FLOPPY_SWIM_IOP,
+		.floppy_type	= MAC_FLOPPY_SWIM_IOP, /* SWIM */
 	},
 
 	/*
@@ -497,7 +497,7 @@ static struct mac_model mac_data_table[] = {
 		.scsi_type	= MAC_SCSI_LC,
 		.scc_type	= MAC_SCC_II,
 		.expansion_type	= MAC_EXP_PDS,
-		.floppy_type	= MAC_FLOPPY_SWIM_ADDR2,
+		.floppy_type	= MAC_FLOPPY_LC, /* SWIM 2 */
 	}, {
 		.ident		= MAC_MODEL_P475,
 		.name		= "Performa 475",
@@ -506,7 +506,7 @@ static struct mac_model mac_data_table[] = {
 		.scsi_type	= MAC_SCSI_QUADRA,
 		.scc_type	= MAC_SCC_II,
 		.expansion_type	= MAC_EXP_PDS,
-		.floppy_type	= MAC_FLOPPY_SWIM_ADDR1,
+		.floppy_type	= MAC_FLOPPY_QUADRA, /* SWIM 2 */
 	}, {
 		.ident		= MAC_MODEL_P475F,
 		.name		= "Performa 475",
@@ -515,7 +515,7 @@ static struct mac_model mac_data_table[] = {
 		.scsi_type	= MAC_SCSI_QUADRA,
 		.scc_type	= MAC_SCC_II,
 		.expansion_type	= MAC_EXP_PDS,
-		.floppy_type	= MAC_FLOPPY_SWIM_ADDR1,
+		.floppy_type	= MAC_FLOPPY_QUADRA, /* SWIM 2 */
 	}, {
 		.ident		= MAC_MODEL_P520,
 		.name		= "Performa 520",
@@ -524,7 +524,7 @@ static struct mac_model mac_data_table[] = {
 		.scsi_type	= MAC_SCSI_LC,
 		.scc_type	= MAC_SCC_II,
 		.expansion_type	= MAC_EXP_PDS,
-		.floppy_type	= MAC_FLOPPY_SWIM_ADDR2,
+		.floppy_type	= MAC_FLOPPY_LC, /* SWIM 2 */
 	}, {
 		.ident		= MAC_MODEL_P550,
 		.name		= "Performa 550",
@@ -533,7 +533,7 @@ static struct mac_model mac_data_table[] = {
 		.scsi_type	= MAC_SCSI_LC,
 		.scc_type	= MAC_SCC_II,
 		.expansion_type	= MAC_EXP_PDS,
-		.floppy_type	= MAC_FLOPPY_SWIM_ADDR2,
+		.floppy_type	= MAC_FLOPPY_LC, /* SWIM 2 */
 	},
 	/* These have the comm slot, and therefore possibly SONIC ethernet */
 	{
@@ -544,7 +544,7 @@ static struct mac_model mac_data_table[] = {
 		.scsi_type	= MAC_SCSI_QUADRA,
 		.scc_type	= MAC_SCC_II,
 		.expansion_type	= MAC_EXP_PDS_COMM,
-		.floppy_type	= MAC_FLOPPY_SWIM_ADDR1,
+		.floppy_type	= MAC_FLOPPY_QUADRA, /* SWIM 2 */
 	}, {
 		.ident		= MAC_MODEL_P588,
 		.name		= "Performa 588",
@@ -554,7 +554,7 @@ static struct mac_model mac_data_table[] = {
 		.ide_type	= MAC_IDE_QUADRA,
 		.scc_type	= MAC_SCC_II,
 		.expansion_type	= MAC_EXP_PDS_COMM,
-		.floppy_type	= MAC_FLOPPY_SWIM_ADDR1,
+		.floppy_type	= MAC_FLOPPY_QUADRA, /* SWIM 2 */
 	}, {
 		.ident		= MAC_MODEL_TV,
 		.name		= "TV",
@@ -562,7 +562,7 @@ static struct mac_model mac_data_table[] = {
 		.via_type	= MAC_VIA_IICI,
 		.scsi_type	= MAC_SCSI_LC,
 		.scc_type	= MAC_SCC_II,
-		.floppy_type	= MAC_FLOPPY_SWIM_ADDR2,
+		.floppy_type	= MAC_FLOPPY_LC, /* SWIM 2 */
 	}, {
 		.ident		= MAC_MODEL_P600,
 		.name		= "Performa 600",
@@ -571,7 +571,7 @@ static struct mac_model mac_data_table[] = {
 		.scsi_type	= MAC_SCSI_LC,
 		.scc_type	= MAC_SCC_II,
 		.expansion_type	= MAC_EXP_NUBUS,
-		.floppy_type	= MAC_FLOPPY_SWIM_ADDR2,
+		.floppy_type	= MAC_FLOPPY_LC, /* SWIM */
 	},
 
 	/*
@@ -588,7 +588,7 @@ static struct mac_model mac_data_table[] = {
 		.scc_type	= MAC_SCC_QUADRA,
 		.ether_type	= MAC_ETHER_SONIC,
 		.expansion_type	= MAC_EXP_PDS_NUBUS,
-		.floppy_type	= MAC_FLOPPY_SWIM_ADDR1,
+		.floppy_type	= MAC_FLOPPY_QUADRA, /* SWIM 2 */
 	}, {
 		.ident		= MAC_MODEL_C650,
 		.name		= "Centris 650",
@@ -598,7 +598,7 @@ static struct mac_model mac_data_table[] = {
 		.scc_type	= MAC_SCC_QUADRA,
 		.ether_type	= MAC_ETHER_SONIC,
 		.expansion_type	= MAC_EXP_PDS_NUBUS,
-		.floppy_type	= MAC_FLOPPY_SWIM_ADDR1,
+		.floppy_type	= MAC_FLOPPY_QUADRA, /* SWIM 2 */
 	}, {
 		.ident		= MAC_MODEL_C660,
 		.name		= "Centris 660AV",
@@ -608,7 +608,7 @@ static struct mac_model mac_data_table[] = {
 		.scc_type	= MAC_SCC_PSC,
 		.ether_type	= MAC_ETHER_MACE,
 		.expansion_type	= MAC_EXP_PDS_NUBUS,
-		.floppy_type	= MAC_FLOPPY_AV,
+		.floppy_type	= MAC_FLOPPY_UNSUPPORTED, /* New Age */
 	},
 
 	/*
@@ -624,7 +624,7 @@ static struct mac_model mac_data_table[] = {
 		.via_type	= MAC_VIA_QUADRA,
 		.scsi_type	= MAC_SCSI_OLD,
 		.scc_type	= MAC_SCC_QUADRA,
-		.floppy_type	= MAC_FLOPPY_SWIM_ADDR2,
+		.floppy_type	= MAC_FLOPPY_OLD, /* SWIM */
 	}, {
 		.ident		= MAC_MODEL_PB145,
 		.name		= "PowerBook 145",
@@ -632,7 +632,7 @@ static struct mac_model mac_data_table[] = {
 		.via_type	= MAC_VIA_QUADRA,
 		.scsi_type	= MAC_SCSI_OLD,
 		.scc_type	= MAC_SCC_QUADRA,
-		.floppy_type	= MAC_FLOPPY_SWIM_ADDR2,
+		.floppy_type	= MAC_FLOPPY_OLD, /* SWIM */
 	}, {
 		.ident		= MAC_MODEL_PB150,
 		.name		= "PowerBook 150",
@@ -641,7 +641,7 @@ static struct mac_model mac_data_table[] = {
 		.scsi_type	= MAC_SCSI_OLD,
 		.ide_type	= MAC_IDE_PB,
 		.scc_type	= MAC_SCC_QUADRA,
-		.floppy_type	= MAC_FLOPPY_SWIM_ADDR2,
+		.floppy_type	= MAC_FLOPPY_OLD, /* SWIM */
 	}, {
 		.ident		= MAC_MODEL_PB160,
 		.name		= "PowerBook 160",
@@ -649,7 +649,7 @@ static struct mac_model mac_data_table[] = {
 		.via_type	= MAC_VIA_QUADRA,
 		.scsi_type	= MAC_SCSI_OLD,
 		.scc_type	= MAC_SCC_QUADRA,
-		.floppy_type	= MAC_FLOPPY_SWIM_ADDR2,
+		.floppy_type	= MAC_FLOPPY_OLD, /* SWIM */
 	}, {
 		.ident		= MAC_MODEL_PB165,
 		.name		= "PowerBook 165",
@@ -657,7 +657,7 @@ static struct mac_model mac_data_table[] = {
 		.via_type	= MAC_VIA_QUADRA,
 		.scsi_type	= MAC_SCSI_OLD,
 		.scc_type	= MAC_SCC_QUADRA,
-		.floppy_type	= MAC_FLOPPY_SWIM_ADDR2,
+		.floppy_type	= MAC_FLOPPY_OLD, /* SWIM */
 	}, {
 		.ident		= MAC_MODEL_PB165C,
 		.name		= "PowerBook 165c",
@@ -665,7 +665,7 @@ static struct mac_model mac_data_table[] = {
 		.via_type	= MAC_VIA_QUADRA,
 		.scsi_type	= MAC_SCSI_OLD,
 		.scc_type	= MAC_SCC_QUADRA,
-		.floppy_type	= MAC_FLOPPY_SWIM_ADDR2,
+		.floppy_type	= MAC_FLOPPY_OLD, /* SWIM */
 	}, {
 		.ident		= MAC_MODEL_PB170,
 		.name		= "PowerBook 170",
@@ -673,7 +673,7 @@ static struct mac_model mac_data_table[] = {
 		.via_type	= MAC_VIA_QUADRA,
 		.scsi_type	= MAC_SCSI_OLD,
 		.scc_type	= MAC_SCC_QUADRA,
-		.floppy_type	= MAC_FLOPPY_SWIM_ADDR2,
+		.floppy_type	= MAC_FLOPPY_OLD, /* SWIM */
 	}, {
 		.ident		= MAC_MODEL_PB180,
 		.name		= "PowerBook 180",
@@ -681,7 +681,7 @@ static struct mac_model mac_data_table[] = {
 		.via_type	= MAC_VIA_QUADRA,
 		.scsi_type	= MAC_SCSI_OLD,
 		.scc_type	= MAC_SCC_QUADRA,
-		.floppy_type	= MAC_FLOPPY_SWIM_ADDR2,
+		.floppy_type	= MAC_FLOPPY_OLD, /* SWIM */
 	}, {
 		.ident		= MAC_MODEL_PB180C,
 		.name		= "PowerBook 180c",
@@ -689,7 +689,7 @@ static struct mac_model mac_data_table[] = {
 		.via_type	= MAC_VIA_QUADRA,
 		.scsi_type	= MAC_SCSI_OLD,
 		.scc_type	= MAC_SCC_QUADRA,
-		.floppy_type	= MAC_FLOPPY_SWIM_ADDR2,
+		.floppy_type	= MAC_FLOPPY_OLD, /* SWIM */
 	}, {
 		.ident		= MAC_MODEL_PB190,
 		.name		= "PowerBook 190",
@@ -698,7 +698,7 @@ static struct mac_model mac_data_table[] = {
 		.scsi_type	= MAC_SCSI_OLD,
 		.ide_type	= MAC_IDE_BABOON,
 		.scc_type	= MAC_SCC_QUADRA,
-		.floppy_type	= MAC_FLOPPY_SWIM_ADDR2,
+		.floppy_type	= MAC_FLOPPY_OLD, /* SWIM 2 */
 	}, {
 		.ident		= MAC_MODEL_PB520,
 		.name		= "PowerBook 520",
@@ -707,7 +707,7 @@ static struct mac_model mac_data_table[] = {
 		.scsi_type	= MAC_SCSI_OLD,
 		.scc_type	= MAC_SCC_QUADRA,
 		.ether_type	= MAC_ETHER_SONIC,
-		.floppy_type	= MAC_FLOPPY_SWIM_ADDR2,
+		.floppy_type	= MAC_FLOPPY_OLD, /* SWIM 2 */
 	},
 
 	/*
@@ -724,7 +724,7 @@ static struct mac_model mac_data_table[] = {
 		.scsi_type	= MAC_SCSI_DUO,
 		.scc_type	= MAC_SCC_QUADRA,
 		.expansion_type	= MAC_EXP_NUBUS,
-		.floppy_type	= MAC_FLOPPY_SWIM_ADDR2,
+		.floppy_type	= MAC_FLOPPY_OLD, /* SWIM */
 	}, {
 		.ident		= MAC_MODEL_PB230,
 		.name		= "PowerBook Duo 230",
@@ -733,7 +733,7 @@ static struct mac_model mac_data_table[] = {
 		.scsi_type	= MAC_SCSI_DUO,
 		.scc_type	= MAC_SCC_QUADRA,
 		.expansion_type	= MAC_EXP_NUBUS,
-		.floppy_type	= MAC_FLOPPY_SWIM_ADDR2,
+		.floppy_type	= MAC_FLOPPY_OLD, /* SWIM */
 	}, {
 		.ident		= MAC_MODEL_PB250,
 		.name		= "PowerBook Duo 250",
@@ -742,7 +742,7 @@ static struct mac_model mac_data_table[] = {
 		.scsi_type	= MAC_SCSI_DUO,
 		.scc_type	= MAC_SCC_QUADRA,
 		.expansion_type	= MAC_EXP_NUBUS,
-		.floppy_type	= MAC_FLOPPY_SWIM_ADDR2,
+		.floppy_type	= MAC_FLOPPY_OLD, /* SWIM */
 	}, {
 		.ident		= MAC_MODEL_PB270C,
 		.name		= "PowerBook Duo 270c",
@@ -751,7 +751,7 @@ static struct mac_model mac_data_table[] = {
 		.scsi_type	= MAC_SCSI_DUO,
 		.scc_type	= MAC_SCC_QUADRA,
 		.expansion_type	= MAC_EXP_NUBUS,
-		.floppy_type	= MAC_FLOPPY_SWIM_ADDR2,
+		.floppy_type	= MAC_FLOPPY_OLD, /* SWIM */
 	}, {
 		.ident		= MAC_MODEL_PB280,
 		.name		= "PowerBook Duo 280",
@@ -760,7 +760,7 @@ static struct mac_model mac_data_table[] = {
 		.scsi_type	= MAC_SCSI_DUO,
 		.scc_type	= MAC_SCC_QUADRA,
 		.expansion_type	= MAC_EXP_NUBUS,
-		.floppy_type	= MAC_FLOPPY_SWIM_ADDR2,
+		.floppy_type	= MAC_FLOPPY_OLD, /* SWIM */
 	}, {
 		.ident		= MAC_MODEL_PB280C,
 		.name		= "PowerBook Duo 280c",
@@ -769,7 +769,7 @@ static struct mac_model mac_data_table[] = {
 		.scsi_type	= MAC_SCSI_DUO,
 		.scc_type	= MAC_SCC_QUADRA,
 		.expansion_type	= MAC_EXP_NUBUS,
-		.floppy_type	= MAC_FLOPPY_SWIM_ADDR2,
+		.floppy_type	= MAC_FLOPPY_OLD, /* SWIM */
 	},
 
 	/*
@@ -960,7 +960,7 @@ static const struct resource mac_scsi_ccl_rsrc[] __initconst = {
 
 int __init mac_platform_init(void)
 {
-	u8 *swim_base;
+	phys_addr_t swim_base = 0;
 
 	if (!MACH_IS_MAC)
 		return -ENODEV;
@@ -977,22 +977,22 @@ int __init mac_platform_init(void)
 	 */
 
 	switch (macintosh_config->floppy_type) {
-	case MAC_FLOPPY_SWIM_ADDR1:
-		swim_base = (u8 *)(VIA1_BASE + 0x1E000);
+	case MAC_FLOPPY_QUADRA:
+		swim_base = 0x5001E000;
 		break;
-	case MAC_FLOPPY_SWIM_ADDR2:
-		swim_base = (u8 *)(VIA1_BASE + 0x16000);
+	case MAC_FLOPPY_OLD:
+		swim_base = 0x50016000;
 		break;
-	default:
-		swim_base = NULL;
+	case MAC_FLOPPY_LC:
+		swim_base = 0x50F16000;
 		break;
 	}
 
 	if (swim_base) {
 		struct resource swim_rsrc = {
 			.flags = IORESOURCE_MEM,
-			.start = (resource_size_t)swim_base,
-			.end   = (resource_size_t)swim_base + 0x1FFF,
+			.start = swim_base,
+			.end   = swim_base + 0x1FFF,
 		};
 
 		platform_device_register_simple("swim", -1, &swim_rsrc, 1);