diff options
Diffstat (limited to 'drivers/scsi/amiga7xx.c')
-rw-r--r-- | drivers/scsi/amiga7xx.c | 107 |
1 files changed, 107 insertions, 0 deletions
diff --git a/drivers/scsi/amiga7xx.c b/drivers/scsi/amiga7xx.c new file mode 100644 index 000000000..2e4b1aa3e --- /dev/null +++ b/drivers/scsi/amiga7xx.c @@ -0,0 +1,107 @@ +/* + * Detection routine for the NCR53c710 based Amiga SCSI Controllers for Linux. + * Amiga MacroSystemUS WarpEngine SCSI controller. + * Amiga Technologies A4000T SCSI controller. + * Amiga Technologies/DKB A4091 SCSI controller. + * + * Written 1997 by Alan Hourihane <alanh@fairlite.demon.co.uk> + * plus modifications of the 53c7xx.c driver to support the Amiga. + */ +#include <linux/types.h> +#include <linux/mm.h> +#include <linux/blk.h> +#include <linux/sched.h> +#include <linux/version.h> +#include <linux/config.h> +#include <linux/zorro.h> + +#include <asm/page.h> +#include <asm/pgtable.h> +#include <asm/amigaints.h> +#include <asm/amigahw.h> +#include <asm/irq.h> + +#include "scsi.h" +#include "hosts.h" +#include "53c7xx.h" +#include "amiga7xx.h" + +#include<linux/stat.h> + +struct proc_dir_entry proc_scsi_amiga7xx = { + PROC_SCSI_AMIGA7XX, 8, "Amiga7xx", + S_IFDIR | S_IRUGO | S_IXUGO, 2 +}; + +int amiga7xx_detect(Scsi_Host_Template *tpnt) +{ + static unsigned char called = 0; + int key; + int num = 0; + unsigned long address; + long long options; + struct ConfigDev *cd; + + if (called || !MACH_IS_AMIGA) + return 0; + + tpnt->proc_dir = &proc_scsi_amiga7xx; + +#ifdef CONFIG_WARPENGINE_SCSI + if ((key = zorro_find(MANUF_MACROSYSTEMS, PROD_WARP_ENGINE, 0, 0))) + { + cd = zorro_get_board(key); + address = (unsigned long)kernel_map((unsigned long)cd->cd_BoardAddr, + cd->cd_BoardSize, KERNELMAP_NOCACHE_SER, NULL); + + options = OPTION_MEMORY_MAPPED|OPTION_DEBUG_TEST1|OPTION_INTFLY|OPTION_SYNCHRONOUS|OPTION_ALWAYS_SYNCHRONOUS|OPTION_DISCONNECT; + + clock = 50000000; /* 50MHz SCSI Clock */ + + ncr53c7xx_init(tpnt, 0, 710, (u32)(unsigned char *)(address + 0x40000), + 0, IRQ_AMIGA_PORTS & ~IRQ_MACHSPEC, DMA_NONE, + options, clock); + + zorro_config_board(key, 0); + num++; + } +#endif + +#ifdef CONFIG_A4000T_SCSI + if (AMIGAHW_PRESENT(A4000_SCSI)) + { + options = OPTION_MEMORY_MAPPED|OPTION_DEBUG_TEST1|OPTION_INTFLY|OPTION_SYNCHRONOUS|OPTION_ALWAYS_SYNCHRONOUS|OPTION_DISCONNECT; + + clock = 50000000; /* 50MHz SCSI Clock */ + + ncr53c7xx_init(tpnt, 0, 710, (u32)(unsigned char *)ZTWO_VADDR(0xDD0040), + 0, IRQ_AMIGA_PORTS, DMA_NONE, + options, clock); + num++; + } +#endif + +#ifdef CONFIG_A4091_SCSI + while ( (key = zorro_find(MANUF_COMMODORE, PROD_A4091, 0, 0)) || + (key = zorro_find(MANUF_COMMODORE2, PROD_A4091_2, 0, 0)) ) + { + cd = zorro_get_board(key); + address = (unsigned long)kernel_map((unsigned long)cd->cd_BoardAddr, + cd->cd_BoardSize, KERNELMAP_NOCACHE_SER, NULL); + + options = OPTION_MEMORY_MAPPED|OPTION_DEBUG_TEST1|OPTION_INTFLY|OPTION_SYNCHRONOUS|OPTION_ALWAYS_SYNCHRONOUS|OPTION_DISCONNECT; + + clock = 50000000; /* 50MHz SCSI Clock */ + + ncr53c7xx_init(tpnt, 0, 710, (u32)(unsigned char *)(address+0x800000), + 0, IRQ_AMIGA_PORTS & ~IRQ_MACHSPEC, DMA_NONE, + options, clock); + + zorro_config_board(key, 0); + num++; + } +#endif + + called = 1; + return num; +} |