drivers/ide/arm/rapide.c

   1 /*
   2  * Copyright (c) 1996-2002 Russell King.
   3  */
   4
   5 #include <linux/module.h>
   6 #include <linux/slab.h>
   7 #include <linux/blkdev.h>
   8 #include <linux/errno.h>
   9 #include <linux/ide.h>
  10 #include <linux/init.h>
  11
  12 #include <asm/ecard.h>
  13
  14 static struct const ide_port_info rapide_port_info = {
  15         .host_flags             = IDE_HFLAG_MMIO | IDE_HFLAG_NO_DMA,
  16 };
  17
  18 static void rapide_setup_ports(hw_regs_t *hw, void __iomem *base,
  19                                void __iomem *ctrl, unsigned int sz, int irq)
  20 {
  21         unsigned long port = (unsigned long)base;
  22         int i;
  23
  24         for (i = 0; i <= 7; i++) {
  25                 hw->io_ports_array[i] = port;
  26                 port += sz;
  27         }
  28         hw->io_ports.ctl_addr = (unsigned long)ctrl;
  29         hw->irq = irq;
  30 }
  31
  32 static int __devinit
  33 rapide_probe(struct expansion_card *ec, const struct ecard_id *id)
  34 {
  35         void __iomem *base;
  36         struct ide_host *host;
  37         int ret;
  38         hw_regs_t hw, *hws[] = { &hw, NULL, NULL, NULL };
  39
  40         ret = ecard_request_resources(ec);
  41         if (ret)
  42                 goto out;
  43
  44         base = ecardm_iomap(ec, ECARD_RES_MEMC, 0, 0);
  45         if (!base) {
  46                 ret = -ENOMEM;
  47                 goto release;
  48         }
  49
  50         memset(&hw, 0, sizeof(hw));
  51         rapide_setup_ports(&hw, base, base + 0x818, 1 << 6, ec->irq);
  52         hw.chipset = ide_generic;
  53         hw.dev = &ec->dev;
  54
  55         host = ide_host_alloc(&rapide_port_info, hws);
  56         if (host == NULL) {
  57                 ret = -ENOENT;
  58                 goto release;
  59         }
  60
  61         ide_host_register(host, &rapide_port_info, hws);
  62
  63         ecard_set_drvdata(ec, host);
  64         goto out;
  65
  66  release:
  67         ecard_release_resources(ec);
  68  out:
  69         return ret;
  70 }
  71
  72 static void __devexit rapide_remove(struct expansion_card *ec)
  73 {
  74         struct ide_host *host = ecard_get_drvdata(ec);
  75
  76         ecard_set_drvdata(ec, NULL);
  77
  78         ide_host_remove(host);
  79
  80         ecard_release_resources(ec);
  81 }
  82
  83 static struct ecard_id rapide_ids[] = {
  84         { MANU_YELLOWSTONE, PROD_YELLOWSTONE_RAPIDE32 },
  85         { 0xffff, 0xffff }
  86 };
  87
  88 static struct ecard_driver rapide_driver = {
  89         .probe          = rapide_probe,
  90         .remove         = __devexit_p(rapide_remove),
  91         .id_table       = rapide_ids,
  92         .drv = {
  93                 .name   = "rapide",
  94         },
  95 };
  96
  97 static int __init rapide_init(void)
  98 {
  99         return ecard_register_driver(&rapide_driver);
 100 }
 101
 102 MODULE_LICENSE("GPL");
 103 MODULE_DESCRIPTION("Yellowstone RAPIDE driver");
 104
 105 module_init(rapide_init);