scsi: gdth: remove ISA and EISA support

The non-PCI code has bitrotted for quite a while and will just oops
on load because it passes a NULL pointer to the PCI DMA routines.

Lets kill it for good - if someone really wants to use one of these
cards I'll help mentoring them to write a proper driver glue.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

3 files changed, 24 insertions, 717 deletions

diff --git a/drivers/scsi/Kconfig b/drivers/scsi/Kconfig
index f38882f6f37d..4d5d79d56f4b 100644
--- a/drivers/scsi/Kconfig
+++ b/drivers/scsi/Kconfig
@@ -665,7 +665,7 @@ config SCSI_DMX3191D
 
 config SCSI_GDTH
 	tristate "Intel/ICP (former GDT SCSI Disk Array) RAID Controller support"
-	depends on (ISA || EISA || PCI) && SCSI && ISA_DMA_API
+	depends on PCI && SCSI
 	---help---
 	  Formerly called GDT SCSI Disk Array Controller Support.
 
diff --git a/drivers/scsi/gdth.c b/drivers/scsi/gdth.c
index 87786e8fdf14..da58ac703cbb 100644
--- a/drivers/scsi/gdth.c
+++ b/drivers/scsi/gdth.c
@@ -1,6 +1,6 @@
 /************************************************************************
  * Linux driver for                                                     *  
- * ICP vortex GmbH:    GDT ISA/EISA/PCI Disk Array Controllers          *
+ * ICP vortex GmbH:    GDT PCI Disk Array Controllers                   *
  * Intel Corporation:  Storage RAID Controllers                         *
  *                                                                      *
  * gdth.c                                                               *
@@ -32,15 +32,10 @@
  ************************************************************************/
 
 /* All GDT Disk Array Controllers are fully supported by this driver.
- * This includes the PCI/EISA/ISA SCSI Disk Array Controllers and the
+ * This includes the PCI SCSI Disk Array Controllers and the
  * PCI Fibre Channel Disk Array Controllers. See gdth.h for a complete
  * list of all controller types.
  * 
- * If you have one or more GDT3000/3020 EISA controllers with 
- * controller BIOS disabled, you have to set the IRQ values with the 
- * command line option "gdth=irq1,irq2,...", where the irq1,irq2,... are
- * the IRQ values for the EISA controllers.
- * 
  * After the optional list of IRQ values, other possible 
  * command line options are:
  * disable:Y                    disable driver
@@ -61,14 +56,12 @@
  *                              access a shared resource from several nodes, 
  *                              appropriate controller firmware required
  * shared_access:N              enable driver reserve/release protocol
- * probe_eisa_isa:Y             scan for EISA/ISA controllers
- * probe_eisa_isa:N             do not scan for EISA/ISA controllers
  * force_dma32:Y                use only 32 bit DMA mode
  * force_dma32:N                use 64 bit DMA mode, if supported
  *
  * The default values are: "gdth=disable:N,reserve_mode:1,reverse_scan:N,
  *                          max_ids:127,rescan:N,hdr_channel:0,
- *                          shared_access:Y,probe_eisa_isa:N,force_dma32:N".
+ *                          shared_access:Y,force_dma32:N".
  * Here is another example: "gdth=reserve_list:0,1,2,0,0,1,3,0,rescan:Y".
  * 
  * When loading the gdth driver as a module, the same options are available. 
@@ -79,7 +72,7 @@
  * 
  * Default: "modprobe gdth disable=0 reserve_mode=1 reverse_scan=0
  *           max_ids=127 rescan=0 hdr_channel=0 shared_access=0
- *           probe_eisa_isa=0 force_dma32=0"
+ *           force_dma32=0"
  * The other example: "modprobe gdth reserve_list=0,1,2,0,0,1,3,0 rescan=1".
  */
 
@@ -286,12 +279,6 @@ static struct timer_list gdth_timer;
 
 #define BUS_L2P(a,b)    ((b)>(a)->virt_bus ? (b-1):(b))
 
-#ifdef CONFIG_ISA
-static u8   gdth_drq_tab[4] = {5,6,7,7};            /* DRQ table */
-#endif
-#if defined(CONFIG_EISA) || defined(CONFIG_ISA)
-static u8   gdth_irq_tab[6] = {0,10,11,12,14,0};    /* IRQ table */
-#endif
 static u8   gdth_polling;                           /* polling if TRUE */
 static int      gdth_ctr_count  = 0;                    /* controller count */
 static LIST_HEAD(gdth_instances);                       /* controller list */
@@ -325,10 +312,6 @@ static u8 gdth_direction_tab[0x100] = {
 };
 
 /* LILO and modprobe/insmod parameters */
-/* IRQ list for GDT3000/3020 EISA controllers */
-static int irq[MAXHA] __initdata = 
-{0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
- 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff};
 /* disable driver flag */
 static int disable __initdata = 0;
 /* reserve flag */
@@ -348,13 +331,10 @@ static int max_ids = MAXID;
 static int rescan = 0;
 /* shared access */
 static int shared_access = 1;
-/* enable support for EISA and ISA controllers */
-static int probe_eisa_isa = 0;
 /* 64 bit DMA mode, support for drives > 2 TB, if force_dma32 = 0 */
 static int force_dma32 = 0;
 
 /* parameters for modprobe/insmod */
-module_param_hw_array(irq, int, irq, NULL, 0);
 module_param(disable, int, 0);
 module_param(reserve_mode, int, 0);
 module_param_array(reserve_list, int, NULL, 0);
@@ -363,7 +343,6 @@ module_param(hdr_channel, int, 0);
 module_param(max_ids, int, 0);
 module_param(rescan, int, 0);
 module_param(shared_access, int, 0);
-module_param(probe_eisa_isa, int, 0);
 module_param(force_dma32, int, 0);
 MODULE_AUTHOR("Achim Leubner");
 MODULE_LICENSE("GPL");
@@ -515,45 +494,6 @@ static void gdth_eval_mapping(u32 size, u32 *cyls, int *heads, int *secs)
     }
 }
 
-/* controller search and initialization functions */
-#ifdef CONFIG_EISA
-static int __init gdth_search_eisa(u16 eisa_adr)
-{
-    u32 id;
-    
-    TRACE(("gdth_search_eisa() adr. %x\n",eisa_adr));
-    id = inl(eisa_adr+ID0REG);
-    if (id == GDT3A_ID || id == GDT3B_ID) {     /* GDT3000A or GDT3000B */
-        if ((inb(eisa_adr+EISAREG) & 8) == 0)   
-            return 0;                           /* not EISA configured */
-        return 1;
-    }
-    if (id == GDT3_ID)                          /* GDT3000 */
-        return 1;
-
-    return 0;                                   
-}
-#endif /* CONFIG_EISA */
-
-#ifdef CONFIG_ISA
-static int __init gdth_search_isa(u32 bios_adr)
-{
-    void __iomem *addr;
-    u32 id;
-
-    TRACE(("gdth_search_isa() bios adr. %x\n",bios_adr));
-    if ((addr = ioremap(bios_adr+BIOS_ID_OFFS, sizeof(u32))) != NULL) {
-        id = readl(addr);
-        iounmap(addr);
-        if (id == GDT2_ID)                          /* GDT2000 */
-            return 1;
-    }
-    return 0;
-}
-#endif /* CONFIG_ISA */
-
-#ifdef CONFIG_PCI
-
 static bool gdth_search_vortex(u16 device)
 {
 	if (device <= PCI_DEVICE_ID_VORTEX_GDT6555)
@@ -656,204 +596,7 @@ static int gdth_pci_init_one(struct pci_dev *pdev,
 
 	return 0;
 }
-#endif /* CONFIG_PCI */
-
-#ifdef CONFIG_EISA
-static int __init gdth_init_eisa(u16 eisa_adr,gdth_ha_str *ha)
-{
-    u32 retries,id;
-    u8 prot_ver,eisacf,i,irq_found;
-
-    TRACE(("gdth_init_eisa() adr. %x\n",eisa_adr));
-    
-    /* disable board interrupts, deinitialize services */
-    outb(0xff,eisa_adr+EDOORREG);
-    outb(0x00,eisa_adr+EDENABREG);
-    outb(0x00,eisa_adr+EINTENABREG);
-    
-    outb(0xff,eisa_adr+LDOORREG);
-    retries = INIT_RETRIES;
-    gdth_delay(20);
-    while (inb(eisa_adr+EDOORREG) != 0xff) {
-        if (--retries == 0) {
-            printk("GDT-EISA: Initialization error (DEINIT failed)\n");
-            return 0;
-        }
-        gdth_delay(1);
-        TRACE2(("wait for DEINIT: retries=%d\n",retries));
-    }
-    prot_ver = inb(eisa_adr+MAILBOXREG);
-    outb(0xff,eisa_adr+EDOORREG);
-    if (prot_ver != PROTOCOL_VERSION) {
-        printk("GDT-EISA: Illegal protocol version\n");
-        return 0;
-    }
-    ha->bmic = eisa_adr;
-    ha->brd_phys = (u32)eisa_adr >> 12;
-
-    outl(0,eisa_adr+MAILBOXREG);
-    outl(0,eisa_adr+MAILBOXREG+4);
-    outl(0,eisa_adr+MAILBOXREG+8);
-    outl(0,eisa_adr+MAILBOXREG+12);
-
-    /* detect IRQ */ 
-    if ((id = inl(eisa_adr+ID0REG)) == GDT3_ID) {
-        ha->oem_id = OEM_ID_ICP;
-        ha->type = GDT_EISA;
-        ha->stype = id;
-        outl(1,eisa_adr+MAILBOXREG+8);
-        outb(0xfe,eisa_adr+LDOORREG);
-        retries = INIT_RETRIES;
-        gdth_delay(20);
-        while (inb(eisa_adr+EDOORREG) != 0xfe) {
-            if (--retries == 0) {
-                printk("GDT-EISA: Initialization error (get IRQ failed)\n");
-                return 0;
-            }
-            gdth_delay(1);
-        }
-        ha->irq = inb(eisa_adr+MAILBOXREG);
-        outb(0xff,eisa_adr+EDOORREG);
-        TRACE2(("GDT3000/3020: IRQ=%d\n",ha->irq));
-        /* check the result */
-        if (ha->irq == 0) {
-                TRACE2(("Unknown IRQ, use IRQ table from cmd line !\n"));
-                for (i = 0, irq_found = FALSE; 
-                     i < MAXHA && irq[i] != 0xff; ++i) {
-                if (irq[i]==10 || irq[i]==11 || irq[i]==12 || irq[i]==14) {
-                    irq_found = TRUE;
-                    break;
-                }
-                }
-            if (irq_found) {
-                ha->irq = irq[i];
-                irq[i] = 0;
-                printk("GDT-EISA: Can not detect controller IRQ,\n");
-                printk("Use IRQ setting from command line (IRQ = %d)\n",
-                       ha->irq);
-            } else {
-                printk("GDT-EISA: Initialization error (unknown IRQ), Enable\n");
-                printk("the controller BIOS or use command line parameters\n");
-                return 0;
-            }
-        }
-    } else {
-        eisacf = inb(eisa_adr+EISAREG) & 7;
-        if (eisacf > 4)                         /* level triggered */
-            eisacf -= 4;
-        ha->irq = gdth_irq_tab[eisacf];
-        ha->oem_id = OEM_ID_ICP;
-        ha->type = GDT_EISA;
-        ha->stype = id;
-    }
-
-    ha->dma64_support = 0;
-    return 1;
-}
-#endif /* CONFIG_EISA */
-
-#ifdef CONFIG_ISA
-static int __init gdth_init_isa(u32 bios_adr,gdth_ha_str *ha)
-{
-    register gdt2_dpram_str __iomem *dp2_ptr;
-    int i;
-    u8 irq_drq,prot_ver;
-    u32 retries;
-
-    TRACE(("gdth_init_isa() bios adr. %x\n",bios_adr));
-
-    ha->brd = ioremap(bios_adr, sizeof(gdt2_dpram_str));
-    if (ha->brd == NULL) {
-        printk("GDT-ISA: Initialization error (DPMEM remap error)\n");
-        return 0;
-    }
-    dp2_ptr = ha->brd;
-    writeb(1, &dp2_ptr->io.memlock); /* switch off write protection */
-    /* reset interface area */
-    memset_io(&dp2_ptr->u, 0, sizeof(dp2_ptr->u));
-    if (readl(&dp2_ptr->u) != 0) {
-        printk("GDT-ISA: Initialization error (DPMEM write error)\n");
-        iounmap(ha->brd);
-        return 0;
-    }
-
-    /* disable board interrupts, read DRQ and IRQ */
-    writeb(0xff, &dp2_ptr->io.irqdel);
-    writeb(0x00, &dp2_ptr->io.irqen);
-    writeb(0x00, &dp2_ptr->u.ic.S_Status);
-    writeb(0x00, &dp2_ptr->u.ic.Cmd_Index);
-
-    irq_drq = readb(&dp2_ptr->io.rq);
-    for (i=0; i<3; ++i) {
-        if ((irq_drq & 1)==0)
-            break;
-        irq_drq >>= 1;
-    }
-    ha->drq = gdth_drq_tab[i];
-
-    irq_drq = readb(&dp2_ptr->io.rq) >> 3;
-    for (i=1; i<5; ++i) {
-        if ((irq_drq & 1)==0)
-            break;
-        irq_drq >>= 1;
-    }
-    ha->irq = gdth_irq_tab[i];
-
-    /* deinitialize services */
-    writel(bios_adr, &dp2_ptr->u.ic.S_Info[0]);
-    writeb(0xff, &dp2_ptr->u.ic.S_Cmd_Indx);
-    writeb(0, &dp2_ptr->io.event);
-    retries = INIT_RETRIES;
-    gdth_delay(20);
-    while (readb(&dp2_ptr->u.ic.S_Status) != 0xff) {
-        if (--retries == 0) {
-            printk("GDT-ISA: Initialization error (DEINIT failed)\n");
-            iounmap(ha->brd);
-            return 0;
-        }
-        gdth_delay(1);
-    }
-    prot_ver = (u8)readl(&dp2_ptr->u.ic.S_Info[0]);
-    writeb(0, &dp2_ptr->u.ic.Status);
-    writeb(0xff, &dp2_ptr->io.irqdel);
-    if (prot_ver != PROTOCOL_VERSION) {
-        printk("GDT-ISA: Illegal protocol version\n");
-        iounmap(ha->brd);
-        return 0;
-    }
-
-    ha->oem_id = OEM_ID_ICP;
-    ha->type = GDT_ISA;
-    ha->ic_all_size = sizeof(dp2_ptr->u);
-    ha->stype= GDT2_ID;
-    ha->brd_phys = bios_adr >> 4;
-
-    /* special request to controller BIOS */
-    writel(0x00, &dp2_ptr->u.ic.S_Info[0]);
-    writel(0x00, &dp2_ptr->u.ic.S_Info[1]);
-    writel(0x01, &dp2_ptr->u.ic.S_Info[2]);
-    writel(0x00, &dp2_ptr->u.ic.S_Info[3]);
-    writeb(0xfe, &dp2_ptr->u.ic.S_Cmd_Indx);
-    writeb(0, &dp2_ptr->io.event);
-    retries = INIT_RETRIES;
-    gdth_delay(20);
-    while (readb(&dp2_ptr->u.ic.S_Status) != 0xfe) {
-        if (--retries == 0) {
-            printk("GDT-ISA: Initialization error\n");
-            iounmap(ha->brd);
-            return 0;
-        }
-        gdth_delay(1);
-    }
-    writeb(0, &dp2_ptr->u.ic.Status);
-    writeb(0xff, &dp2_ptr->io.irqdel);
-
-    ha->dma64_support = 0;
-    return 1;
-}
-#endif /* CONFIG_ISA */
 
-#ifdef CONFIG_PCI
 static int gdth_init_pci(struct pci_dev *pdev, gdth_pci_str *pcistr,
 			 gdth_ha_str *ha)
 {
@@ -1228,30 +971,19 @@ static int gdth_init_pci(struct pci_dev *pdev, gdth_pci_str *pcistr,
 
     return 1;
 }
-#endif /* CONFIG_PCI */
 
 /* controller protocol functions */
 
 static void gdth_enable_int(gdth_ha_str *ha)
 {
     unsigned long flags;
-    gdt2_dpram_str __iomem *dp2_ptr;
     gdt6_dpram_str __iomem *dp6_ptr;
     gdt6m_dpram_str __iomem *dp6m_ptr;
 
     TRACE(("gdth_enable_int() hanum %d\n",ha->hanum));
     spin_lock_irqsave(&ha->smp_lock, flags);
 
-    if (ha->type == GDT_EISA) {
-        outb(0xff, ha->bmic + EDOORREG);
-        outb(0xff, ha->bmic + EDENABREG);
-        outb(0x01, ha->bmic + EINTENABREG);
-    } else if (ha->type == GDT_ISA) {
-        dp2_ptr = ha->brd;
-        writeb(1, &dp2_ptr->io.irqdel);
-        writeb(0, &dp2_ptr->u.ic.Cmd_Index);
-        writeb(1, &dp2_ptr->io.irqen);
-    } else if (ha->type == GDT_PCI) {
+    if (ha->type == GDT_PCI) {
         dp6_ptr = ha->brd;
         writeb(1, &dp6_ptr->io.irqdel);
         writeb(0, &dp6_ptr->u.ic.Cmd_Index);
@@ -1275,12 +1007,7 @@ static u8 gdth_get_status(gdth_ha_str *ha)
 
     TRACE(("gdth_get_status() irq %d ctr_count %d\n", ha->irq, gdth_ctr_count));
 
-        if (ha->type == GDT_EISA)
-            IStatus = inb((u16)ha->bmic + EDOORREG);
-        else if (ha->type == GDT_ISA)
-            IStatus =
-                readb(&((gdt2_dpram_str __iomem *)ha->brd)->u.ic.Cmd_Index);
-        else if (ha->type == GDT_PCI)
+        if (ha->type == GDT_PCI)
             IStatus =
                 readb(&((gdt6_dpram_str __iomem *)ha->brd)->u.ic.Cmd_Index);
         else if (ha->type == GDT_PCINEW) 
@@ -1298,11 +1025,7 @@ static int gdth_test_busy(gdth_ha_str *ha)
 
     TRACE(("gdth_test_busy() hanum %d\n", ha->hanum));
 
-    if (ha->type == GDT_EISA)
-        gdtsema0 = (int)inb(ha->bmic + SEMA0REG);
-    else if (ha->type == GDT_ISA)
-        gdtsema0 = (int)readb(&((gdt2_dpram_str __iomem *)ha->brd)->u.ic.Sema0);
-    else if (ha->type == GDT_PCI)
+    if (ha->type == GDT_PCI)
         gdtsema0 = (int)readb(&((gdt6_dpram_str __iomem *)ha->brd)->u.ic.Sema0);
     else if (ha->type == GDT_PCINEW) 
         gdtsema0 = (int)inb(PTR2USHORT(&ha->plx->sema0_reg));
@@ -1336,11 +1059,7 @@ static void gdth_set_sema0(gdth_ha_str *ha)
 {
     TRACE(("gdth_set_sema0() hanum %d\n", ha->hanum));
 
-    if (ha->type == GDT_EISA) {
-        outb(1, ha->bmic + SEMA0REG);
-    } else if (ha->type == GDT_ISA) {
-        writeb(1, &((gdt2_dpram_str __iomem *)ha->brd)->u.ic.Sema0);
-    } else if (ha->type == GDT_PCI) {
+    if (ha->type == GDT_PCI) {
         writeb(1, &((gdt6_dpram_str __iomem *)ha->brd)->u.ic.Sema0);
     } else if (ha->type == GDT_PCINEW) { 
         outb(1, PTR2USHORT(&ha->plx->sema0_reg));
@@ -1356,7 +1075,6 @@ static void gdth_copy_command(gdth_ha_str *ha)
     register gdt6m_dpram_str __iomem *dp6m_ptr;
     register gdt6c_dpram_str __iomem *dp6c_ptr;
     gdt6_dpram_str __iomem *dp6_ptr;
-    gdt2_dpram_str __iomem *dp2_ptr;
     u16 cp_count,dp_offset,cmd_no;
     
     TRACE(("gdth_copy_command() hanum %d\n", ha->hanum));
@@ -1367,8 +1085,6 @@ static void gdth_copy_command(gdth_ha_str *ha)
     cmd_ptr  = ha->pccb;
 
     ++ha->cmd_cnt;                                                      
-    if (ha->type == GDT_EISA)
-        return;                                 /* no DPMEM, no copy */
 
     /* set cpcount dword aligned */
     if (cp_count & 3)
@@ -1377,14 +1093,7 @@ static void gdth_copy_command(gdth_ha_str *ha)
     ha->cmd_offs_dpmem += cp_count;
     
     /* set offset and service, copy command to DPMEM */
-    if (ha->type == GDT_ISA) {
-        dp2_ptr = ha->brd;
-        writew(dp_offset + DPMEM_COMMAND_OFFSET,
-                    &dp2_ptr->u.ic.comm_queue[cmd_no].offset);
-        writew((u16)cmd_ptr->Service,
-                    &dp2_ptr->u.ic.comm_queue[cmd_no].serv_id);
-        memcpy_toio(&dp2_ptr->u.ic.gdt_dpr_cmd[dp_offset],cmd_ptr,cp_count);
-    } else if (ha->type == GDT_PCI) {
+    if (ha->type == GDT_PCI) {
         dp6_ptr = ha->brd;
         writew(dp_offset + DPMEM_COMMAND_OFFSET,
                     &dp6_ptr->u.ic.comm_queue[cmd_no].offset);
@@ -1430,13 +1139,7 @@ static void gdth_release_event(gdth_ha_str *ha)
     if (ha->pccb->OpCode == GDT_INIT)
         ha->pccb->Service |= 0x80;
 
-    if (ha->type == GDT_EISA) {
-        if (ha->pccb->OpCode == GDT_INIT)               /* store DMA buffer */
-            outl(ha->ccb_phys, ha->bmic + MAILBOXREG);
-        outb(ha->pccb->Service, ha->bmic + LDOORREG);
-    } else if (ha->type == GDT_ISA) {
-        writeb(0, &((gdt2_dpram_str __iomem *)ha->brd)->io.event);
-    } else if (ha->type == GDT_PCI) {
+    if (ha->type == GDT_PCI) {
         writeb(0, &((gdt6_dpram_str __iomem *)ha->brd)->io.event);
     } else if (ha->type == GDT_PCINEW) { 
         outb(1, PTR2USHORT(&ha->plx->ldoor_reg));
@@ -2433,9 +2136,6 @@ static int gdth_fill_cache_cmd(gdth_ha_str *ha, struct scsi_cmnd *scp,
     TRACE(("gdth_fill_cache_cmd() cmd 0x%x cmdsize %d hdrive %d\n",
                  scp->cmnd[0],scp->cmd_len,hdrive));
 
-    if (ha->type==GDT_EISA && ha->cmd_cnt>0) 
-        return 0;
-
     mode64 = (ha->cache_feat & GDT_64BIT) ? TRUE : FALSE;
     /* test for READ_16, WRITE_16 if !mode64 ? ---
        not required, should not occur due to error return on 
@@ -2613,9 +2313,6 @@ static int gdth_fill_raw_cmd(gdth_ha_str *ha, struct scsi_cmnd *scp, u8 b)
     TRACE(("gdth_fill_raw_cmd() cmd 0x%x bus %d ID %d LUN %d\n",
            scp->cmnd[0],b,t,l));
 
-    if (ha->type==GDT_EISA && ha->cmd_cnt>0) 
-        return 0;
-
     mode64 = (ha->raw_feat & GDT_64BIT) ? TRUE : FALSE;
 
     cmdp->Service = SCSIRAWSERVICE;
@@ -2778,9 +2475,6 @@ static int gdth_special_cmd(gdth_ha_str *ha, struct scsi_cmnd *scp)
     cmdp= ha->pccb;
     TRACE2(("gdth_special_cmd(): "));
 
-    if (ha->type==GDT_EISA && ha->cmd_cnt>0) 
-        return 0;
-
     *cmdp = *cmndinfo->internal_cmd_str;
     cmdp->RequestBuffer = scp;
 
@@ -2959,7 +2653,6 @@ static irqreturn_t __gdth_interrupt(gdth_ha_str *ha,
 {
     gdt6m_dpram_str __iomem *dp6m_ptr = NULL;
     gdt6_dpram_str __iomem *dp6_ptr;
-    gdt2_dpram_str __iomem *dp2_ptr;
     struct scsi_cmnd *scp;
     int rval, i;
     u8 IStatus;
@@ -3015,35 +2708,7 @@ static irqreturn_t __gdth_interrupt(gdth_ha_str *ha,
         }
 #endif
     
-        if (ha->type == GDT_EISA) {
-            if (IStatus & 0x80) {                       /* error flag */
-                IStatus &= ~0x80;
-                ha->status = inw(ha->bmic + MAILBOXREG+8);
-                TRACE2(("gdth_interrupt() error %d/%d\n",IStatus,ha->status));
-            } else                                      /* no error */
-                ha->status = S_OK;
-            ha->info = inl(ha->bmic + MAILBOXREG+12);
-            ha->service = inw(ha->bmic + MAILBOXREG+10);
-            ha->info2 = inl(ha->bmic + MAILBOXREG+4);
-
-            outb(0xff, ha->bmic + EDOORREG);    /* acknowledge interrupt */
-            outb(0x00, ha->bmic + SEMA1REG);    /* reset status semaphore */
-        } else if (ha->type == GDT_ISA) {
-            dp2_ptr = ha->brd;
-            if (IStatus & 0x80) {                       /* error flag */
-                IStatus &= ~0x80;
-                ha->status = readw(&dp2_ptr->u.ic.Status);
-                TRACE2(("gdth_interrupt() error %d/%d\n",IStatus,ha->status));
-            } else                                      /* no error */
-                ha->status = S_OK;
-            ha->info = readl(&dp2_ptr->u.ic.Info[0]);
-            ha->service = readw(&dp2_ptr->u.ic.Service);
-            ha->info2 = readl(&dp2_ptr->u.ic.Info[1]);
-
-            writeb(0xff, &dp2_ptr->io.irqdel); /* acknowledge interrupt */
-            writeb(0, &dp2_ptr->u.ic.Cmd_Index);/* reset command index */
-            writeb(0, &dp2_ptr->io.Sema1);     /* reset status semaphore */
-        } else if (ha->type == GDT_PCI) {
+        if (ha->type == GDT_PCI) {
             dp6_ptr = ha->brd;
             if (IStatus & 0x80) {                       /* error flag */
                 IStatus &= ~0x80;
@@ -3610,12 +3275,7 @@ static int gdth_async_event(gdth_ha_str *ha)
                 + sizeof(u64);
             ha->cmd_cnt = 0;
             gdth_copy_command(ha);
-            if (ha->type == GDT_EISA)
-                printk("[EISA slot %d] ",(u16)ha->brd_phys);
-            else if (ha->type == GDT_ISA)
-                printk("[DPMEM 0x%4X] ",(u16)ha->brd_phys);
-            else 
-                printk("[PCI %d/%d] ",(u16)(ha->brd_phys>>8),
+            printk("[PCI %d/%d] ",(u16)(ha->brd_phys>>8),
                        (u16)((ha->brd_phys>>3)&0x1f));
             gdth_release_event(ha);
         }
@@ -3756,23 +3416,12 @@ static inline void gdth_timer_init(void)
 
 static void __init internal_setup(char *str,int *ints)
 {
-    int i, argc;
+    int i;
     char *cur_str, *argv;
 
     TRACE2(("internal_setup() str %s ints[0] %d\n", 
             str ? str:"NULL", ints ? ints[0]:0));
 
-    /* read irq[] from ints[] */
-    if (ints) {
-        argc = ints[0];
-        if (argc > 0) {
-            if (argc > MAXHA)
-                argc = MAXHA;
-            for (i = 0; i < argc; ++i)
-                irq[i] = ints[i+1];
-        }
-    }
-
     /* analyse string */
     argv = str;
     while (argv && (cur_str = strchr(argv, ':'))) {
@@ -3799,8 +3448,6 @@ static void __init internal_setup(char *str,int *ints)
             rescan = val;
         else if (!strncmp(argv, "shared_access:", 14))
             shared_access = val;
-        else if (!strncmp(argv, "probe_eisa_isa:", 15))
-            probe_eisa_isa = val;
         else if (!strncmp(argv, "reserve_list:", 13)) {
             reserve_list[0] = val;
             for (i = 1; i < MAX_RES_ARGS; i++) {
@@ -3847,18 +3494,7 @@ static const char *gdth_ctr_name(gdth_ha_str *ha)
 {
     TRACE2(("gdth_ctr_name()\n"));
 
-    if (ha->type == GDT_EISA) {
-        switch (ha->stype) {
-          case GDT3_ID:
-            return("GDT3000/3020");
-          case GDT3A_ID:
-            return("GDT3000A/3020A/3050A");
-          case GDT3B_ID:
-            return("GDT3000B/3010A");
-        }
-    } else if (ha->type == GDT_ISA) {
-        return("GDT2000/2020");
-    } else if (ha->type == GDT_PCI) {
+    if (ha->type == GDT_PCI) {
         switch (ha->pdev->device) {
           case PCI_DEVICE_ID_VORTEX_GDT60x0:
             return("GDT6000/6020/6050");
@@ -4528,22 +4164,17 @@ static int gdth_ioctl(struct file *filep, unsigned int cmd, unsigned long arg)
             (NULL == (ha = gdth_find_ha(ctrt.ionode))))
             return -EFAULT;
 
-        if (ha->type == GDT_ISA || ha->type == GDT_EISA) {
-            ctrt.type = (u8)((ha->stype>>20) - 0x10);
+        if (ha->type != GDT_PCIMPR) {
+	    ctrt.type = (u8)((ha->stype<<4) + 6);
         } else {
-            if (ha->type != GDT_PCIMPR) {
-                ctrt.type = (u8)((ha->stype<<4) + 6);
-            } else {
-                ctrt.type = 
-                    (ha->oem_id == OEM_ID_INTEL ? 0xfd : 0xfe);
-                if (ha->stype >= 0x300)
-                    ctrt.ext_type = 0x6000 | ha->pdev->subsystem_device;
-                else 
-                    ctrt.ext_type = 0x6000 | ha->stype;
-            }
-            ctrt.device_id = ha->pdev->device;
-            ctrt.sub_device_id = ha->pdev->subsystem_device;
+            ctrt.type =  (ha->oem_id == OEM_ID_INTEL ? 0xfd : 0xfe);
+            if (ha->stype >= 0x300)
+                ctrt.ext_type = 0x6000 | ha->pdev->subsystem_device;
+            else
+                ctrt.ext_type = 0x6000 | ha->stype;
         }
+        ctrt.device_id = ha->pdev->device;
+        ctrt.sub_device_id = ha->pdev->subsystem_device;
         ctrt.info = ha->brd_phys;
         ctrt.oem_id = ha->oem_id;
         if (copy_to_user(argp, &ctrt, sizeof(gdth_ioctl_ctrtype)))
@@ -4697,272 +4328,6 @@ static struct scsi_host_template gdth_template = {
 	.no_write_same		= 1,
 };
 
-#ifdef CONFIG_ISA
-static int __init gdth_isa_probe_one(u32 isa_bios)
-{
-	struct Scsi_Host *shp;
-	gdth_ha_str *ha;
-	dma_addr_t scratch_dma_handle = 0;
-	int error, i;
-
-	if (!gdth_search_isa(isa_bios))
-		return -ENXIO;
-
-	shp = scsi_host_alloc(&gdth_template, sizeof(gdth_ha_str));
-	if (!shp)
-		return -ENOMEM;
-	ha = shost_priv(shp);
-
-	error = -ENODEV;
-	if (!gdth_init_isa(isa_bios,ha))
-		goto out_host_put;
-
-	/* controller found and initialized */
-	printk("Configuring GDT-ISA HA at BIOS 0x%05X IRQ %u DRQ %u\n",
-		isa_bios, ha->irq, ha->drq);
-
-	error = request_irq(ha->irq, gdth_interrupt, 0, "gdth", ha);
-	if (error) {
-		printk("GDT-ISA: Unable to allocate IRQ\n");
-		goto out_host_put;
-	}
-
-	error = request_dma(ha->drq, "gdth");
-	if (error) {
-		printk("GDT-ISA: Unable to allocate DMA channel\n");
-		goto out_free_irq;
-	}
-
-	set_dma_mode(ha->drq,DMA_MODE_CASCADE);
-	enable_dma(ha->drq);
-	shp->unchecked_isa_dma = 1;
-	shp->irq = ha->irq;
-	shp->dma_channel = ha->drq;
-
-	ha->hanum = gdth_ctr_count++;
-	ha->shost = shp;
-
-	ha->pccb = &ha->cmdext;
-	ha->ccb_phys = 0L;
-	ha->pdev = NULL;
-
-	error = -ENOMEM;
-
-	ha->pscratch = pci_alloc_consistent(ha->pdev, GDTH_SCRATCH,
-						&scratch_dma_handle);
-	if (!ha->pscratch)
-		goto out_dec_counters;
-	ha->scratch_phys = scratch_dma_handle;
-
-	ha->pmsg = pci_alloc_consistent(ha->pdev, sizeof(gdth_msg_str),
-						&scratch_dma_handle);
-	if (!ha->pmsg)
-		goto out_free_pscratch;
-	ha->msg_phys = scratch_dma_handle;
-
-#ifdef INT_COAL
-	ha->coal_stat = pci_alloc_consistent(ha->pdev,
-				sizeof(gdth_coal_status) * MAXOFFSETS,
-				&scratch_dma_handle);
-	if (!ha->coal_stat)
-		goto out_free_pmsg;
-	ha->coal_stat_phys = scratch_dma_handle;
-#endif
-
-	ha->scratch_busy = FALSE;
-	ha->req_first = NULL;
-	ha->tid_cnt = MAX_HDRIVES;
-	if (max_ids > 0 && max_ids < ha->tid_cnt)
-		ha->tid_cnt = max_ids;
-	for (i = 0; i < GDTH_MAXCMDS; ++i)
-		ha->cmd_tab[i].cmnd = UNUSED_CMND;
-	ha->scan_mode = rescan ? 0x10 : 0;
-
-	error = -ENODEV;
-	if (!gdth_search_drives(ha)) {
-		printk("GDT-ISA: Error during device scan\n");
-		goto out_free_coal_stat;
-	}
-
-	if (hdr_channel < 0 || hdr_channel > ha->bus_cnt)
-		hdr_channel = ha->bus_cnt;
-	ha->virt_bus = hdr_channel;
-
-	if (ha->cache_feat & ha->raw_feat & ha->screen_feat & GDT_64BIT)
-		shp->max_cmd_len = 16;
-
-	shp->max_id      = ha->tid_cnt;
-	shp->max_lun     = MAXLUN;
-	shp->max_channel = ha->bus_cnt;
-
-	spin_lock_init(&ha->smp_lock);
-	gdth_enable_int(ha);
-
-	error = scsi_add_host(shp, NULL);
-	if (error)
-		goto out_free_coal_stat;
-	list_add_tail(&ha->list, &gdth_instances);
-	gdth_timer_init();
-
-	scsi_scan_host(shp);
-
-	return 0;
-
- out_free_coal_stat:
-#ifdef INT_COAL
-	pci_free_consistent(ha->pdev, sizeof(gdth_coal_status) * MAXOFFSETS,
-				ha->coal_stat, ha->coal_stat_phys);
- out_free_pmsg:
-#endif
-	pci_free_consistent(ha->pdev, sizeof(gdth_msg_str),
-				ha->pmsg, ha->msg_phys);
- out_free_pscratch:
-	pci_free_consistent(ha->pdev, GDTH_SCRATCH,
-				ha->pscratch, ha->scratch_phys);
- out_dec_counters:
-	gdth_ctr_count--;
- out_free_irq:
-	free_irq(ha->irq, ha);
- out_host_put:
-	scsi_host_put(shp);
-	return error;
-}
-#endif /* CONFIG_ISA */
-
-#ifdef CONFIG_EISA
-static int __init gdth_eisa_probe_one(u16 eisa_slot)
-{
-	struct Scsi_Host *shp;
-	gdth_ha_str *ha;
-	dma_addr_t scratch_dma_handle = 0;
-	int error, i;
-
-	if (!gdth_search_eisa(eisa_slot))
-		return -ENXIO;
-
-	shp = scsi_host_alloc(&gdth_template, sizeof(gdth_ha_str));
-	if (!shp)
-		return -ENOMEM;
-	ha = shost_priv(shp);
-
-	error = -ENODEV;
-	if (!gdth_init_eisa(eisa_slot,ha))
-		goto out_host_put;
-
-	/* controller found and initialized */
-	printk("Configuring GDT-EISA HA at Slot %d IRQ %u\n",
-		eisa_slot >> 12, ha->irq);
-
-	error = request_irq(ha->irq, gdth_interrupt, 0, "gdth", ha);
-	if (error) {
-		printk("GDT-EISA: Unable to allocate IRQ\n");
-		goto out_host_put;
-	}
-
-	shp->unchecked_isa_dma = 0;
-	shp->irq = ha->irq;
-	shp->dma_channel = 0xff;
-
-	ha->hanum = gdth_ctr_count++;
-	ha->shost = shp;
-
-	TRACE2(("EISA detect Bus 0: hanum %d\n", ha->hanum));
-
-	ha->pccb = &ha->cmdext;
-	ha->ccb_phys = 0L;
-
-	error = -ENOMEM;
-
-	ha->pdev = NULL;
-	ha->pscratch = pci_alloc_consistent(ha->pdev, GDTH_SCRATCH,
-						&scratch_dma_handle);
-	if (!ha->pscratch)
-		goto out_free_irq;
-	ha->scratch_phys = scratch_dma_handle;
-
-	ha->pmsg = pci_alloc_consistent(ha->pdev, sizeof(gdth_msg_str),
-						&scratch_dma_handle);
-	if (!ha->pmsg)
-		goto out_free_pscratch;
-	ha->msg_phys = scratch_dma_handle;
-
-#ifdef INT_COAL
-	ha->coal_stat = pci_alloc_consistent(ha->pdev,
-			sizeof(gdth_coal_status) * MAXOFFSETS,
-			&scratch_dma_handle);
-	if (!ha->coal_stat)
-		goto out_free_pmsg;
-	ha->coal_stat_phys = scratch_dma_handle;
-#endif
-
-	ha->ccb_phys = pci_map_single(ha->pdev,ha->pccb,
-			sizeof(gdth_cmd_str), PCI_DMA_BIDIRECTIONAL);
-	if (!ha->ccb_phys)
-		goto out_free_coal_stat;
-
-	ha->scratch_busy = FALSE;
-	ha->req_first = NULL;
-	ha->tid_cnt = MAX_HDRIVES;
-	if (max_ids > 0 && max_ids < ha->tid_cnt)
-		ha->tid_cnt = max_ids;
-	for (i = 0; i < GDTH_MAXCMDS; ++i)
-		ha->cmd_tab[i].cmnd = UNUSED_CMND;
-	ha->scan_mode = rescan ? 0x10 : 0;
-
-	if (!gdth_search_drives(ha)) {
-		printk("GDT-EISA: Error during device scan\n");
-		error = -ENODEV;
-		goto out_free_ccb_phys;
-	}
-
-	if (hdr_channel < 0 || hdr_channel > ha->bus_cnt)
-		hdr_channel = ha->bus_cnt;
-	ha->virt_bus = hdr_channel;
-
-	if (ha->cache_feat & ha->raw_feat & ha->screen_feat & GDT_64BIT)
-		shp->max_cmd_len = 16;
-
-	shp->max_id      = ha->tid_cnt;
-	shp->max_lun     = MAXLUN;
-	shp->max_channel = ha->bus_cnt;
-
-	spin_lock_init(&ha->smp_lock);
-	gdth_enable_int(ha);
-
-	error = scsi_add_host(shp, NULL);
-	if (error)
-		goto out_free_ccb_phys;
-	list_add_tail(&ha->list, &gdth_instances);
-	gdth_timer_init();
-
-	scsi_scan_host(shp);
-
-	return 0;
-
- out_free_ccb_phys:
-	pci_unmap_single(ha->pdev,ha->ccb_phys, sizeof(gdth_cmd_str),
-			PCI_DMA_BIDIRECTIONAL);
- out_free_coal_stat:
-#ifdef INT_COAL
-	pci_free_consistent(ha->pdev, sizeof(gdth_coal_status) * MAXOFFSETS,
-				ha->coal_stat, ha->coal_stat_phys);
- out_free_pmsg:
-#endif
-	pci_free_consistent(ha->pdev, sizeof(gdth_msg_str),
-				ha->pmsg, ha->msg_phys);
- out_free_pscratch:
-	pci_free_consistent(ha->pdev, GDTH_SCRATCH,
-				ha->pscratch, ha->scratch_phys);
- out_free_irq:
-	free_irq(ha->irq, ha);
-	gdth_ctr_count--;
- out_host_put:
-	scsi_host_put(shp);
-	return error;
-}
-#endif /* CONFIG_EISA */
-
-#ifdef CONFIG_PCI
 static int gdth_pci_probe_one(gdth_pci_str *pcistr, gdth_ha_str **ha_out)
 {
 	struct Scsi_Host *shp;
@@ -5105,7 +4470,6 @@ static int gdth_pci_probe_one(gdth_pci_str *pcistr, gdth_ha_str **ha_out)
 	scsi_host_put(shp);
 	return error;
 }
-#endif /* CONFIG_PCI */
 
 static void gdth_remove_one(gdth_ha_str *ha)
 {
@@ -5125,10 +4489,6 @@ static void gdth_remove_one(gdth_ha_str *ha)
 	if (shp->irq)
 		free_irq(shp->irq,ha);
 
-#ifdef CONFIG_ISA
-	if (shp->dma_channel != 0xff)
-		free_dma(shp->dma_channel);
-#endif
 #ifdef INT_COAL
 	if (ha->coal_stat)
 		pci_free_consistent(ha->pdev, sizeof(gdth_coal_status) *
@@ -5181,26 +4541,6 @@ static int __init gdth_init(void)
 	gdth_clear_events();
 	timer_setup(&gdth_timer, gdth_timeout, 0);
 
-	/* As default we do not probe for EISA or ISA controllers */
-	if (probe_eisa_isa) {
-		/* scanning for controllers, at first: ISA controller */
-#ifdef CONFIG_ISA
-		u32 isa_bios;
-		for (isa_bios = 0xc8000UL; isa_bios <= 0xd8000UL;
-		                isa_bios += 0x8000UL)
-			gdth_isa_probe_one(isa_bios);
-#endif
-#ifdef CONFIG_EISA
-		{
-			u16 eisa_slot;
-			for (eisa_slot = 0x1000; eisa_slot <= 0x8000;
-			                         eisa_slot += 0x1000)
-				gdth_eisa_probe_one(eisa_slot);
-		}
-#endif
-	}
-
-#ifdef CONFIG_PCI
 	/* scanning for PCI controllers */
 	if (pci_register_driver(&gdth_pci_driver)) {
 		gdth_ha_str *ha;
@@ -5209,7 +4549,6 @@ static int __init gdth_init(void)
 			gdth_remove_one(ha);
 		return -ENODEV;
 	}
-#endif /* CONFIG_PCI */
 
 	TRACE2(("gdth_detect() %d controller detected\n", gdth_ctr_count));
 
@@ -5230,9 +4569,7 @@ static void __exit gdth_exit(void)
 	del_timer_sync(&gdth_timer);
 #endif
 
-#ifdef CONFIG_PCI
 	pci_unregister_driver(&gdth_pci_driver);
-#endif
 
 	list_for_each_entry(ha, &gdth_instances, list)
 		gdth_remove_one(ha);
diff --git a/drivers/scsi/gdth.h b/drivers/scsi/gdth.h
index ee6ffcf388e8..5a13d406d40e 100644
--- a/drivers/scsi/gdth.h
+++ b/drivers/scsi/gdth.h
@@ -38,17 +38,9 @@
 #define OEM_ID_INTEL    0x8000
 
 /* controller classes */
-#define GDT_ISA         0x01                    /* ISA controller */
-#define GDT_EISA        0x02                    /* EISA controller */
 #define GDT_PCI         0x03                    /* PCI controller */
 #define GDT_PCINEW      0x04                    /* new PCI controller */
 #define GDT_PCIMPR      0x05                    /* PCI MPR controller */
-/* GDT_EISA, controller subtypes EISA */
-#define GDT3_ID         0x0130941c              /* GDT3000/3020 */
-#define GDT3A_ID        0x0230941c              /* GDT3000A/3020A/3050A */
-#define GDT3B_ID        0x0330941c              /* GDT3000B/3010A */
-/* GDT_ISA */
-#define GDT2_ID         0x0120941c              /* GDT2000/2020 */
 
 #ifndef PCI_DEVICE_ID_VORTEX_GDT60x0
 /* GDT_PCI */
@@ -281,17 +273,6 @@
 #define GDTH_DATA_IN    0x01000000L             /* data from target */
 #define GDTH_DATA_OUT   0x00000000L             /* data to target */
 
-/* BMIC registers (EISA controllers) */
-#define ID0REG          0x0c80                  /* board ID */
-#define EINTENABREG     0x0c89                  /* interrupt enable */
-#define SEMA0REG        0x0c8a                  /* command semaphore */
-#define SEMA1REG        0x0c8b                  /* status semaphore */
-#define LDOORREG        0x0c8d                  /* local doorbell */
-#define EDENABREG       0x0c8e                  /* EISA system doorbell enab. */
-#define EDOORREG        0x0c8f                  /* EISA system doorbell */
-#define MAILBOXREG      0x0c90                  /* mailbox reg. (16 bytes) */
-#define EISAREG         0x0cc0                  /* EISA configuration */
-
 /* other defines */
 #define LINUX_OS        8                       /* used for cache optim. */
 #define SECS32          0x1f                    /* round capacity */
@@ -706,21 +687,11 @@ typedef struct {
     u8      fw_magic;                       /* contr. ID from firmware */
 } __attribute__((packed)) gdt_pci_sram;
 
-/* SRAM structure EISA controllers (but NOT GDT3000/3020) */
-typedef struct {
-    u8      os_used[16];                    /* OS code per service */
-    u16      need_deinit;                    /* switch betw. BIOS/driver */
-    u8      switch_support;                 /* see need_deinit */
-    u8      padding;
-} __attribute__((packed)) gdt_eisa_sram;
-
-
 /* DPRAM ISA controllers */
 typedef struct {
     union {
         struct {
             u8      bios_used[0x3c00-32];   /* 15KB - 32Bytes BIOS */
-            u32     magic;                  /* controller (EISA) ID */
             u16      need_deinit;            /* switch betw. BIOS/driver */
             u8      switch_support;         /* see need_deinit */
             u8      padding[9];
@@ -843,7 +814,6 @@ typedef struct {
     u16              cache_feat;             /* feat. cache serv. (s/g,..)*/
     u16              raw_feat;               /* feat. raw service (s/g,..)*/
     u16              screen_feat;            /* feat. raw service (s/g,..)*/
-    u16              bmic;                   /* BMIC address (EISA) */
     void __iomem        *brd;                   /* DPRAM address */
     u32             brd_phys;               /* slot number/BIOS address */
     gdt6c_plx_regs      *plx;                   /* PLX regs (new PCI contr.) */