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author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /drivers/scsi/amiga7xx.c | |
download | kernel_samsung_espresso10-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.zip kernel_samsung_espresso10-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.gz kernel_samsung_espresso10-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.bz2 |
Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'drivers/scsi/amiga7xx.c')
-rw-r--r-- | drivers/scsi/amiga7xx.c | 141 |
1 files changed, 141 insertions, 0 deletions
diff --git a/drivers/scsi/amiga7xx.c b/drivers/scsi/amiga7xx.c new file mode 100644 index 0000000..5f13546 --- /dev/null +++ b/drivers/scsi/amiga7xx.c @@ -0,0 +1,141 @@ +/* + * 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/blkdev.h> +#include <linux/sched.h> +#include <linux/version.h> +#include <linux/config.h> +#include <linux/zorro.h> +#include <linux/stat.h> + +#include <asm/setup.h> +#include <asm/page.h> +#include <asm/pgtable.h> +#include <asm/amigaints.h> +#include <asm/amigahw.h> +#include <asm/dma.h> +#include <asm/irq.h> + +#include "scsi.h" +#include <scsi/scsi_host.h> +#include "53c7xx.h" +#include "amiga7xx.h" + + +static int amiga7xx_register_one(Scsi_Host_Template *tpnt, + unsigned long address) +{ + long long options; + int clock; + + if (!request_mem_region(address, 0x1000, "ncr53c710")) + return 0; + + address = (unsigned long)z_ioremap(address, 0x1000); + options = OPTION_MEMORY_MAPPED | OPTION_DEBUG_TEST1 | OPTION_INTFLY | + OPTION_SYNCHRONOUS | OPTION_ALWAYS_SYNCHRONOUS | + OPTION_DISCONNECT; + clock = 50000000; /* 50 MHz SCSI Clock */ + ncr53c7xx_init(tpnt, 0, 710, address, 0, IRQ_AMIGA_PORTS, DMA_NONE, + options, clock); + return 1; +} + + +#ifdef CONFIG_ZORRO + +static struct { + zorro_id id; + unsigned long offset; + int absolute; /* offset is absolute address */ +} amiga7xx_table[] = { + { .id = ZORRO_PROD_PHASE5_BLIZZARD_603E_PLUS, .offset = 0xf40000, + .absolute = 1 }, + { .id = ZORRO_PROD_MACROSYSTEMS_WARP_ENGINE_40xx, .offset = 0x40000 }, + { .id = ZORRO_PROD_CBM_A4091_1, .offset = 0x800000 }, + { .id = ZORRO_PROD_CBM_A4091_2, .offset = 0x800000 }, + { .id = ZORRO_PROD_GVP_GFORCE_040_060, .offset = 0x40000 }, + { 0 } +}; + +static int __init amiga7xx_zorro_detect(Scsi_Host_Template *tpnt) +{ + int num = 0, i; + struct zorro_dev *z = NULL; + unsigned long address; + + while ((z = zorro_find_device(ZORRO_WILDCARD, z))) { + for (i = 0; amiga7xx_table[i].id; i++) + if (z->id == amiga7xx_table[i].id) + break; + if (!amiga7xx_table[i].id) + continue; + if (amiga7xx_table[i].absolute) + address = amiga7xx_table[i].offset; + else + address = z->resource.start + amiga7xx_table[i].offset; + num += amiga7xx_register_one(tpnt, address); + } + return num; +} + +#endif /* CONFIG_ZORRO */ + + +int __init amiga7xx_detect(Scsi_Host_Template *tpnt) +{ + static unsigned char called = 0; + int num = 0; + + if (called || !MACH_IS_AMIGA) + return 0; + + tpnt->proc_name = "Amiga7xx"; + + if (AMIGAHW_PRESENT(A4000_SCSI)) + num += amiga7xx_register_one(tpnt, 0xdd0040); + +#ifdef CONFIG_ZORRO + num += amiga7xx_zorro_detect(tpnt); +#endif + + called = 1; + return num; +} + +static int amiga7xx_release(struct Scsi_Host *shost) +{ + if (shost->irq) + free_irq(shost->irq, NULL); + if (shost->dma_channel != 0xff) + free_dma(shost->dma_channel); + if (shost->io_port && shost->n_io_port) + release_region(shost->io_port, shost->n_io_port); + scsi_unregister(shost); + return 0; +} + +static Scsi_Host_Template driver_template = { + .name = "Amiga NCR53c710 SCSI", + .detect = amiga7xx_detect, + .release = amiga7xx_release, + .queuecommand = NCR53c7xx_queue_command, + .abort = NCR53c7xx_abort, + .reset = NCR53c7xx_reset, + .can_queue = 24, + .this_id = 7, + .sg_tablesize = 63, + .cmd_per_lun = 3, + .use_clustering = DISABLE_CLUSTERING +}; + + +#include "scsi_module.c" |