Convert mac_scsi to platform device and eliminate scsi_register().

Platform resources for chip registers now follow the documentation. This
should fix issues with the Mac IIci (and possibly other models too).

Signed-off-by: Finn Thain <fth...@telegraphics.com.au>

---

The new hwreg_present() call site is not protected by local_irq_save/restore.
This assumes Geert's patch, "Disable/restore interrupts in
hwreg_present()/hwreg_write()", which is commit e4dc601bf99ccd1c in 3.18-rc1.

Changes since v1:
- Use NO_IRQ instead of IRQ_NONE.
- Drop unnecessary MACH_IS_MAC() test.
- Remove static platform_device structs and call
  platform_device_register_simple() instead of platform_device_register().
- Platform resources now const and __initconst.
- Add MAC_SCSI_LATE platform resources to avoid PDMA on certain models.

---
 arch/m68k/include/asm/macintosh.h |    4 
 arch/m68k/mac/config.c            |  146 ++++++++++++++++++++--
 drivers/scsi/mac_scsi.c           |  245 +++++++++++++++++++-------------------
 3 files changed, 262 insertions(+), 133 deletions(-)

Index: linux/drivers/scsi/mac_scsi.c
===================================================================
--- linux.orig/drivers/scsi/mac_scsi.c  2014-10-27 16:25:43.000000000 +1100
+++ linux/drivers/scsi/mac_scsi.c       2014-10-27 16:25:44.000000000 +1100
@@ -12,23 +12,18 @@
  */
 
 #include <linux/types.h>
-#include <linux/stddef.h>
-#include <linux/ctype.h>
 #include <linux/delay.h>
-
 #include <linux/module.h>
-#include <linux/signal.h>
 #include <linux/ioport.h>
 #include <linux/init.h>
 #include <linux/blkdev.h>
 #include <linux/interrupt.h>
+#include <linux/platform_device.h>
 
+#include <asm/hwtest.h>
 #include <asm/io.h>
-#include <asm/irq.h>
-
-#include <asm/macintosh.h>
 #include <asm/macints.h>
-#include <asm/mac_via.h>
+#include <asm/setup.h>
 
 #include <scsi/scsi_host.h>
 
@@ -36,7 +31,7 @@
 
 #define PSEUDO_DMA
 
-#define NCR5380_implementation_fields   /* none */
+#define NCR5380_implementation_fields   unsigned char *pdma_base
 #define NCR5380_local_declare()         struct Scsi_Host *_instance
 #define NCR5380_setup(instance)         _instance = instance
 
@@ -58,10 +53,6 @@
 
 #define RESET_BOOT
 
-#ifdef RESET_BOOT
-static void mac_scsi_reset_boot(struct Scsi_Host *instance);
-#endif
-
 static int setup_can_queue = -1;
 module_param(setup_can_queue, int, 0);
 static int setup_cmd_per_lun = -1;
@@ -86,23 +77,18 @@ module_param(setup_hostid, int, 0);
 #define        AFTER_RESET_DELAY       (HZ/2)
 #endif
 
-static unsigned char *mac_scsi_regp;
-static unsigned char *mac_scsi_drq;
-static unsigned char *mac_scsi_nodrq;
-
-
 /*
  * NCR 5380 register access functions
  */
 
-static __inline__ char macscsi_read(struct Scsi_Host *instance, int reg)
+static inline char macscsi_read(struct Scsi_Host *instance, int reg)
 {
-  return in_8(instance->io_port + (reg<<4));
+       return in_8(instance->base + (reg << 4));
 }
 
-static __inline__ void macscsi_write(struct Scsi_Host *instance, int reg, int 
value)
+static inline void macscsi_write(struct Scsi_Host *instance, int reg, int 
value)
 {
-  out_8(instance->io_port + (reg<<4), value);
+       out_8(instance->base + (reg << 4), value);
 }
 
 #ifndef MODULE
@@ -134,96 +120,6 @@ static int __init mac_scsi_setup(char *s
 __setup("mac5380=", mac_scsi_setup);
 #endif /* !MODULE */
 
-/*
- * Function : int macscsi_detect(struct scsi_host_template * tpnt)
- *
- * Purpose : initializes mac NCR5380 driver based on the
- *     command line / compile time port and irq definitions.
- *
- * Inputs : tpnt - template for this SCSI adapter.
- *
- * Returns : 1 if a host adapter was found, 0 if not.
- *
- */
- 
-int __init macscsi_detect(struct scsi_host_template * tpnt)
-{
-    static int called = 0;
-    int flags = 0;
-    struct Scsi_Host *instance;
-
-    if (!MACH_IS_MAC || called)
-       return( 0 );
-
-    if (macintosh_config->scsi_type != MAC_SCSI_OLD)
-       return( 0 );
-
-       if (setup_can_queue > 0)
-               tpnt->can_queue = setup_can_queue;
-       if (setup_cmd_per_lun > 0)
-               tpnt->cmd_per_lun = setup_cmd_per_lun;
-       if (setup_sg_tablesize >= 0)
-               tpnt->sg_tablesize = setup_sg_tablesize;
-       if (setup_hostid >= 0)
-               tpnt->this_id = setup_hostid & 7;
-
-#ifdef SUPPORT_TAGS
-    if (setup_use_tagged_queuing < 0)
-       setup_use_tagged_queuing = 0;
-#endif
-
-    /* Once we support multiple 5380s (e.g. DuoDock) we'll do
-       something different here */
-    instance = scsi_register (tpnt, sizeof(struct NCR5380_hostdata));
-    if (instance == NULL)
-       return 0;
-
-    if (macintosh_config->ident == MAC_MODEL_IIFX) {
-       mac_scsi_regp  = (unsigned char *) VIA1_BASE + 0x8000;
-       mac_scsi_drq   = (unsigned char *) VIA1_BASE + 0xE000;
-       mac_scsi_nodrq = (unsigned char *) VIA1_BASE + 0xC000;
-       /* The IIFX should be able to do true DMA, but pseudo-dma doesn't work 
*/
-       flags = FLAG_NO_PSEUDO_DMA;
-    } else {
-       mac_scsi_regp  = (unsigned char *) VIA1_BASE + 0x10000;
-       mac_scsi_drq   = (unsigned char *) VIA1_BASE + 0x6000;
-       mac_scsi_nodrq = (unsigned char *) VIA1_BASE + 0x12000;
-    }
-
-    if (! setup_use_pdma)
-       flags = FLAG_NO_PSEUDO_DMA;
-       
-    instance->io_port = (unsigned long) mac_scsi_regp;
-    instance->irq = IRQ_MAC_SCSI;
-
-#ifdef RESET_BOOT   
-    mac_scsi_reset_boot(instance);
-#endif
-    
-    NCR5380_init(instance, flags);
-
-    instance->n_io_port = 255;
-
-    if (instance->irq != NO_IRQ)
-       if (request_irq(instance->irq, NCR5380_intr, 0, "ncr5380", instance)) {
-           printk(KERN_WARNING "scsi%d: IRQ%d not free, interrupts disabled\n",
-                  instance->host_no, instance->irq);
-           instance->irq = NO_IRQ;
-       }
-
-    called = 1;
-    return 1;
-}
-
-int macscsi_release (struct Scsi_Host *shpnt)
-{
-       if (shpnt->irq != NO_IRQ)
-               free_irq(shpnt->irq, shpnt);
-       NCR5380_exit(shpnt);
-
-       return 0;
-}
-
 #ifdef RESET_BOOT
 /*
  * Our 'bus reset on boot' function
@@ -335,13 +231,14 @@ __asm__ __volatile__                                      
\
 static int macscsi_pread(struct Scsi_Host *instance,
                          unsigned char *dst, int len)
 {
+       struct NCR5380_hostdata *hostdata = shost_priv(instance);
        unsigned char *d;
        unsigned char *s;
 
        NCR5380_local_declare();
        NCR5380_setup(instance);
 
-       s = mac_scsi_drq + (INPUT_DATA_REG << 4);
+       s = hostdata->pdma_base + (INPUT_DATA_REG << 4);
        d = dst;
 
        /* These conditions are derived from MacOS */
@@ -428,6 +325,7 @@ __asm__ __volatile__                                        
\
 static int macscsi_pwrite(struct Scsi_Host *instance,
                           unsigned char *src, int len)
 {
+       struct NCR5380_hostdata *hostdata = shost_priv(instance);
        unsigned char *s;
        unsigned char *d;
 
@@ -435,7 +333,7 @@ static int macscsi_pwrite(struct Scsi_Ho
        NCR5380_setup(instance);
 
        s = src;
-       d = mac_scsi_drq + (OUTPUT_DATA_REG << 4);
+       d = hostdata->pdma_base + (OUTPUT_DATA_REG << 4);
 
        /* These conditions are derived from MacOS */
 
@@ -462,13 +360,15 @@ static int macscsi_pwrite(struct Scsi_Ho
 
 #include "NCR5380.c"
 
-static struct scsi_host_template driver_template = {
-       .proc_name                      = "Mac5380",
+#define DRV_MODULE_NAME         "mac_scsi"
+#define PFX                     DRV_MODULE_NAME ": "
+
+static struct scsi_host_template mac_scsi_template = {
+       .module                         = THIS_MODULE,
+       .proc_name                      = DRV_MODULE_NAME,
        .show_info                      = macscsi_show_info,
        .write_info                     = macscsi_write_info,
        .name                           = "Macintosh NCR5380 SCSI",
-       .detect                         = macscsi_detect,
-       .release                        = macscsi_release,
        .info                           = macscsi_info,
        .queuecommand                   = macscsi_queue_command,
        .eh_abort_handler               = macscsi_abort,
@@ -480,7 +380,114 @@ static struct scsi_host_template driver_
        .use_clustering                 = DISABLE_CLUSTERING
 };
 
+static int __init mac_scsi_probe(struct platform_device *pdev)
+{
+       struct Scsi_Host *instance;
+       int error;
+       int host_flags = 0;
+       struct resource *irq, *pio_mem, *pdma_mem = NULL;
+
+       pio_mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+       if (!pio_mem)
+               return -ENODEV;
+
+#ifdef PSEUDO_DMA
+       pdma_mem = platform_get_resource(pdev, IORESOURCE_MEM, 1);
+#endif
+
+       irq = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
+
+       if (!hwreg_present((unsigned char *)pio_mem->start +
+                          (STATUS_REG << 4))) {
+               pr_info(PFX "no device detected at %pap\n", &pio_mem->start);
+               return -ENODEV;
+       }
+
+       if (setup_can_queue > 0)
+               mac_scsi_template.can_queue = setup_can_queue;
+       if (setup_cmd_per_lun > 0)
+               mac_scsi_template.cmd_per_lun = setup_cmd_per_lun;
+       if (setup_sg_tablesize >= 0)
+               mac_scsi_template.sg_tablesize = setup_sg_tablesize;
+       if (setup_hostid >= 0)
+               mac_scsi_template.this_id = setup_hostid & 7;
+#ifdef SUPPORT_TAGS
+       if (setup_use_tagged_queuing < 0)
+               setup_use_tagged_queuing = 0;
+#endif
+       if (setup_use_pdma < 0)
+               setup_use_pdma = 0;
+
+       instance = scsi_host_alloc(&mac_scsi_template,
+                                  sizeof(struct NCR5380_hostdata));
+       if (!instance)
+               return -ENOMEM;
+
+       instance->base = pio_mem->start;
+       if (irq)
+               instance->irq = irq->start;
+       else
+               instance->irq = NO_IRQ;
+
+       if (pdma_mem && setup_use_pdma) {
+               struct NCR5380_hostdata *hostdata = shost_priv(instance);
+
+               hostdata->pdma_base = (unsigned char *)pdma_mem->start;
+       } else
+               host_flags |= FLAG_NO_PSEUDO_DMA;
+
+#ifdef RESET_BOOT
+       mac_scsi_reset_boot(instance);
+#endif
+
+       NCR5380_init(instance, host_flags);
+
+       if (instance->irq != NO_IRQ) {
+               error = request_irq(instance->irq, macscsi_intr, IRQF_SHARED,
+                                   "NCR5380", instance);
+               if (error)
+                       goto fail_irq;
+       }
+
+       error = scsi_add_host(instance, NULL);
+       if (error)
+               goto fail_host;
+
+       platform_set_drvdata(pdev, instance);
+
+       scsi_scan_host(instance);
+       return 0;
+
+fail_host:
+       if (instance->irq != NO_IRQ)
+               free_irq(instance->irq, instance);
+fail_irq:
+       NCR5380_exit(instance);
+       scsi_host_put(instance);
+       return error;
+}
+
+static int __exit mac_scsi_remove(struct platform_device *pdev)
+{
+       struct Scsi_Host *instance = platform_get_drvdata(pdev);
+
+       scsi_remove_host(instance);
+       if (instance->irq != NO_IRQ)
+               free_irq(instance->irq, instance);
+       NCR5380_exit(instance);
+       scsi_host_put(instance);
+       return 0;
+}
+
+static struct platform_driver mac_scsi_driver = {
+       .remove = __exit_p(mac_scsi_remove),
+       .driver = {
+               .name   = DRV_MODULE_NAME,
+               .owner  = THIS_MODULE,
+       },
+};
 
-#include "scsi_module.c"
+module_platform_driver_probe(mac_scsi_driver, mac_scsi_probe);
 
+MODULE_ALIAS("platform:" DRV_MODULE_NAME);
 MODULE_LICENSE("GPL");
Index: linux/arch/m68k/mac/config.c
===================================================================
--- linux.orig/arch/m68k/mac/config.c   2014-10-27 16:17:59.000000000 +1100
+++ linux/arch/m68k/mac/config.c        2014-10-27 16:25:44.000000000 +1100
@@ -278,7 +278,7 @@ static struct mac_model mac_data_table[]
                .name           = "IIfx",
                .adb_type       = MAC_ADB_IOP,
                .via_type       = MAC_VIA_IICI,
-               .scsi_type      = MAC_SCSI_OLD,
+               .scsi_type      = MAC_SCSI_IIFX,
                .scc_type       = MAC_SCC_IOP,
                .nubus_type     = MAC_NUBUS,
                .floppy_type    = MAC_FLOPPY_SWIM_IOP,
@@ -329,7 +329,7 @@ static struct mac_model mac_data_table[]
                .name           = "Color Classic",
                .adb_type       = MAC_ADB_CUDA,
                .via_type       = MAC_VIA_IICI,
-               .scsi_type      = MAC_SCSI_OLD,
+               .scsi_type      = MAC_SCSI_CCL,
                .scc_type       = MAC_SCC_II,
                .nubus_type     = MAC_NUBUS,
                .floppy_type    = MAC_FLOPPY_SWIM_ADDR2,
@@ -338,7 +338,7 @@ static struct mac_model mac_data_table[]
                .name           = "Color Classic II",
                .adb_type       = MAC_ADB_CUDA,
                .via_type       = MAC_VIA_IICI,
-               .scsi_type      = MAC_SCSI_OLD,
+               .scsi_type      = MAC_SCSI_CCL,
                .scc_type       = MAC_SCC_II,
                .nubus_type     = MAC_NUBUS,
                .floppy_type    = MAC_FLOPPY_SWIM_ADDR2,
@@ -526,7 +526,7 @@ static struct mac_model mac_data_table[]
                .name           = "Performa 520",
                .adb_type       = MAC_ADB_CUDA,
                .via_type       = MAC_VIA_IICI,
-               .scsi_type      = MAC_SCSI_OLD,
+               .scsi_type      = MAC_SCSI_CCL,
                .scc_type       = MAC_SCC_II,
                .nubus_type     = MAC_NUBUS,
                .floppy_type    = MAC_FLOPPY_SWIM_ADDR2,
@@ -535,7 +535,7 @@ static struct mac_model mac_data_table[]
                .name           = "Performa 550",
                .adb_type       = MAC_ADB_CUDA,
                .via_type       = MAC_VIA_IICI,
-               .scsi_type      = MAC_SCSI_OLD,
+               .scsi_type      = MAC_SCSI_CCL,
                .scc_type       = MAC_SCC_II,
                .nubus_type     = MAC_NUBUS,
                .floppy_type    = MAC_FLOPPY_SWIM_ADDR2,
@@ -567,7 +567,7 @@ static struct mac_model mac_data_table[]
                .name           = "TV",
                .adb_type       = MAC_ADB_CUDA,
                .via_type       = MAC_VIA_IICI,
-               .scsi_type      = MAC_SCSI_OLD,
+               .scsi_type      = MAC_SCSI_CCL,
                .scc_type       = MAC_SCC_II,
                .nubus_type     = MAC_NUBUS,
                .floppy_type    = MAC_FLOPPY_SWIM_ADDR2,
@@ -712,7 +712,7 @@ static struct mac_model mac_data_table[]
                .name           = "PowerBook 190",
                .adb_type       = MAC_ADB_PB2,
                .via_type       = MAC_VIA_QUADRA,
-               .scsi_type      = MAC_SCSI_OLD,
+               .scsi_type      = MAC_SCSI_LATE,
                .ide_type       = MAC_IDE_BABOON,
                .scc_type       = MAC_SCC_QUADRA,
                .nubus_type     = MAC_NUBUS,
@@ -722,7 +722,7 @@ static struct mac_model mac_data_table[]
                .name           = "PowerBook 520",
                .adb_type       = MAC_ADB_PB2,
                .via_type       = MAC_VIA_QUADRA,
-               .scsi_type      = MAC_SCSI_OLD,
+               .scsi_type      = MAC_SCSI_LATE,
                .scc_type       = MAC_SCC_QUADRA,
                .ether_type     = MAC_ETHER_SONIC,
                .nubus_type     = MAC_NUBUS,
@@ -740,7 +740,7 @@ static struct mac_model mac_data_table[]
                .name           = "PowerBook Duo 210",
                .adb_type       = MAC_ADB_PB2,
                .via_type       = MAC_VIA_IICI,
-               .scsi_type      = MAC_SCSI_OLD,
+               .scsi_type      = MAC_SCSI_DUO,
                .scc_type       = MAC_SCC_QUADRA,
                .nubus_type     = MAC_NUBUS,
                .floppy_type    = MAC_FLOPPY_SWIM_ADDR2,
@@ -749,7 +749,7 @@ static struct mac_model mac_data_table[]
                .name           = "PowerBook Duo 230",
                .adb_type       = MAC_ADB_PB2,
                .via_type       = MAC_VIA_IICI,
-               .scsi_type      = MAC_SCSI_OLD,
+               .scsi_type      = MAC_SCSI_DUO,
                .scc_type       = MAC_SCC_QUADRA,
                .nubus_type     = MAC_NUBUS,
                .floppy_type    = MAC_FLOPPY_SWIM_ADDR2,
@@ -758,7 +758,7 @@ static struct mac_model mac_data_table[]
                .name           = "PowerBook Duo 250",
                .adb_type       = MAC_ADB_PB2,
                .via_type       = MAC_VIA_IICI,
-               .scsi_type      = MAC_SCSI_OLD,
+               .scsi_type      = MAC_SCSI_DUO,
                .scc_type       = MAC_SCC_QUADRA,
                .nubus_type     = MAC_NUBUS,
                .floppy_type    = MAC_FLOPPY_SWIM_ADDR2,
@@ -767,7 +767,7 @@ static struct mac_model mac_data_table[]
                .name           = "PowerBook Duo 270c",
                .adb_type       = MAC_ADB_PB2,
                .via_type       = MAC_VIA_IICI,
-               .scsi_type      = MAC_SCSI_OLD,
+               .scsi_type      = MAC_SCSI_DUO,
                .scc_type       = MAC_SCC_QUADRA,
                .nubus_type     = MAC_NUBUS,
                .floppy_type    = MAC_FLOPPY_SWIM_ADDR2,
@@ -776,7 +776,7 @@ static struct mac_model mac_data_table[]
                .name           = "PowerBook Duo 280",
                .adb_type       = MAC_ADB_PB2,
                .via_type       = MAC_VIA_IICI,
-               .scsi_type      = MAC_SCSI_OLD,
+               .scsi_type      = MAC_SCSI_DUO,
                .scc_type       = MAC_SCC_QUADRA,
                .nubus_type     = MAC_NUBUS,
                .floppy_type    = MAC_FLOPPY_SWIM_ADDR2,
@@ -785,7 +785,7 @@ static struct mac_model mac_data_table[]
                .name           = "PowerBook Duo 280c",
                .adb_type       = MAC_ADB_PB2,
                .via_type       = MAC_VIA_IICI,
-               .scsi_type      = MAC_SCSI_OLD,
+               .scsi_type      = MAC_SCSI_DUO,
                .scc_type       = MAC_SCC_QUADRA,
                .nubus_type     = MAC_NUBUS,
                .floppy_type    = MAC_FLOPPY_SWIM_ADDR2,
@@ -929,6 +929,70 @@ static struct platform_device swim_pdev
        .resource       = &swim_rsrc,
 };
 
+static const struct resource mac_scsi_iifx_rsrc[] __initconst = {
+       {
+               .flags = IORESOURCE_IRQ,
+               .start = IRQ_MAC_SCSI,
+               .end   = IRQ_MAC_SCSI,
+       }, {
+               .flags = IORESOURCE_MEM,
+               .start = 0x50008000,
+               .end   = 0x50009FFF,
+       },
+};
+
+static const struct resource mac_scsi_duo_rsrc[] __initconst = {
+       {
+               .flags = IORESOURCE_MEM,
+               .start = 0xFEE02000,
+               .end   = 0xFEE03FFF,
+       },
+};
+
+static const struct resource mac_scsi_old_rsrc[] __initconst = {
+       {
+               .flags = IORESOURCE_IRQ,
+               .start = IRQ_MAC_SCSI,
+               .end   = IRQ_MAC_SCSI,
+       }, {
+               .flags = IORESOURCE_MEM,
+               .start = 0x50010000,
+               .end   = 0x50011FFF,
+       }, {
+               .flags = IORESOURCE_MEM,
+               .start = 0x50006000,
+               .end   = 0x50007FFF,
+       },
+};
+
+static const struct resource mac_scsi_late_rsrc[] __initconst = {
+       {
+               .flags = IORESOURCE_IRQ,
+               .start = IRQ_MAC_SCSI,
+               .end   = IRQ_MAC_SCSI,
+       }, {
+               .flags = IORESOURCE_MEM,
+               .start = 0x50010000,
+               .end   = 0x50011FFF,
+       },
+};
+
+static const struct resource mac_scsi_ccl_rsrc[] __initconst = {
+       {
+               .flags = IORESOURCE_IRQ,
+               .start = IRQ_MAC_SCSI,
+               .end   = IRQ_MAC_SCSI,
+       }, {
+               .flags = IORESOURCE_MEM,
+               .start = 0x50F10000,
+               .end   = 0x50F11FFF,
+       }, {
+               .flags = IORESOURCE_MEM,
+               .start = 0x50F06000,
+               .end   = 0x50F07FFF,
+       },
+};
+
 static struct platform_device esp_0_pdev = {
        .name           = "mac_esp",
        .id             = 0,
@@ -1000,6 +1064,60 @@ int __init mac_platform_init(void)
                    (macintosh_config->ident == MAC_MODEL_Q950))
                        platform_device_register(&esp_1_pdev);
                break;
+       case MAC_SCSI_IIFX:
+               /* Addresses from The Guide to Mac Family Hardware.
+                * $5000 8000 - $5000 9FFF: SCSI DMA
+                * $5000 C000 - $5000 DFFF: Alternate SCSI (DMA)
+                * $5000 E000 - $5000 FFFF: Alternate SCSI (Hsk)
+                * The SCSI DMA custom IC embeds the 53C80 core. mac_scsi does
+                * not make use of its DMA or hardware handshaking logic.
+                */
+               platform_device_register_simple("mac_scsi", 0,
+                       mac_scsi_iifx_rsrc, ARRAY_SIZE(mac_scsi_iifx_rsrc));
+               break;
+       case MAC_SCSI_DUO:
+               /* Addresses from the Duo Dock II Developer Note.
+                * $FEE0 2000 - $FEE0 3FFF: normal mode
+                * $FEE0 4000 - $FEE0 5FFF: pseudo DMA without /DRQ
+                * $FEE0 6000 - $FEE0 7FFF: pseudo DMA with /DRQ
+                * The NetBSD code indicates that both 5380 chips share
+                * an IRQ (?) which would need careful handling (see mac_esp).
+                */
+               platform_device_register_simple("mac_scsi", 1,
+                       mac_scsi_duo_rsrc, ARRAY_SIZE(mac_scsi_duo_rsrc));
+               /* fall through */
+       case MAC_SCSI_OLD:
+               /* Addresses from Developer Notes for Duo System,
+                * PowerBook 180 & 160, 140 & 170, Macintosh IIsi
+                * and also from The Guide to Mac Family Hardware for
+                * SE/30, II, IIx, IIcx, IIci.
+                * $5000 6000 - $5000 7FFF: pseudo-DMA with /DRQ
+                * $5001 0000 - $5001 1FFF: normal mode
+                * $5001 2000 - $5001 3FFF: pseudo-DMA without /DRQ
+                * GMFH says that $5000 0000 - $50FF FFFF "wraps
+                * $5000 0000 - $5001 FFFF eight times" (!)
+                * mess.org says IIci and Color Classic do not alias
+                * I/O address space.
+                */
+               platform_device_register_simple("mac_scsi", 0,
+                       mac_scsi_old_rsrc, ARRAY_SIZE(mac_scsi_old_rsrc));
+               break;
+       case MAC_SCSI_LATE:
+               /* PDMA logic in 68040 PowerBooks is somehow different to
+                * '030 models. It's probably more like Quadras (see mac_esp).
+                */
+               platform_device_register_simple("mac_scsi", 0,
+                       mac_scsi_late_rsrc, ARRAY_SIZE(mac_scsi_late_rsrc));
+               break;
+       case MAC_SCSI_CCL:
+               /* Addresses from the Color Classic Developer Note.
+                * $50F0 6000 - $50F0 7FFF: SCSI handshake
+                * $50F1 0000 - $50F1 1FFF: SCSI
+                * $50F1 2000 - $50F1 3FFF: SCSI DMA
+                */
+               platform_device_register_simple("mac_scsi", 0,
+                       mac_scsi_ccl_rsrc, ARRAY_SIZE(mac_scsi_ccl_rsrc));
+               break;
        }
 
        /*
Index: linux/arch/m68k/include/asm/macintosh.h
===================================================================
--- linux.orig/arch/m68k/include/asm/macintosh.h        2014-10-27 
16:17:59.000000000 +1100
+++ linux/arch/m68k/include/asm/macintosh.h     2014-10-27 16:25:44.000000000 
+1100
@@ -53,6 +53,10 @@ struct mac_model
 #define MAC_SCSI_QUADRA                2
 #define MAC_SCSI_QUADRA2       3
 #define MAC_SCSI_QUADRA3       4
+#define MAC_SCSI_IIFX          5
+#define MAC_SCSI_DUO           6
+#define MAC_SCSI_CCL           7
+#define MAC_SCSI_LATE          8
 
 #define MAC_IDE_NONE           0
 #define MAC_IDE_QUADRA         1


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