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>

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.
 

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.) */