arch/mips/alchemy/devboards/platform.c

   1 /*
   2  * devoard misc stuff.
   3  */
   4
   5 #include <linux/init.h>
   6 #include <linux/slab.h>
   7 #include <linux/platform_device.h>
   8
   9 /* register a pcmcia socket */
  10 int __init db1x_register_pcmcia_socket(unsigned long pseudo_attr_start,
  11                                        unsigned long pseudo_attr_end,
  12                                        unsigned long pseudo_mem_start,
  13                                        unsigned long pseudo_mem_end,
  14                                        unsigned long pseudo_io_start,
  15                                        unsigned long pseudo_io_end,
  16                                        int card_irq,
  17                                        int cd_irq,
  18                                        int stschg_irq,
  19                                        int eject_irq,
  20                                        int id)
  21 {
  22         int cnt, i, ret;
  23         struct resource *sr;
  24         struct platform_device *pd;
  25
  26         cnt = 5;
  27         if (eject_irq)
  28                 cnt++;
  29         if (stschg_irq)
  30                 cnt++;
  31
  32         sr = kzalloc(sizeof(struct resource) * cnt, GFP_KERNEL);
  33         if (!sr)
  34                 return -ENOMEM;
  35
  36         pd = platform_device_alloc("db1xxx_pcmcia", id);
  37         if (!pd) {
  38                 ret = -ENOMEM;
  39                 goto out;
  40         }
  41
  42         sr[0].name      = "pseudo-attr";
  43         sr[0].flags     = IORESOURCE_MEM;
  44         sr[0].start     = pseudo_attr_start;
  45         sr[0].end       = pseudo_attr_end;
  46
  47         sr[1].name      = "pseudo-mem";
  48         sr[1].flags     = IORESOURCE_MEM;
  49         sr[1].start     = pseudo_mem_start;
  50         sr[1].end       = pseudo_mem_end;
  51
  52         sr[2].name      = "pseudo-io";
  53         sr[2].flags     = IORESOURCE_MEM;
  54         sr[2].start     = pseudo_io_start;
  55         sr[2].end       = pseudo_io_end;
  56
  57         sr[3].name      = "insert";
  58         sr[3].flags     = IORESOURCE_IRQ;
  59         sr[3].start = sr[3].end = cd_irq;
  60
  61         sr[4].name      = "card";
  62         sr[4].flags     = IORESOURCE_IRQ;
  63         sr[4].start = sr[4].end = card_irq;
  64
  65         i = 5;
  66         if (stschg_irq) {
  67                 sr[i].name      = "insert";
  68                 sr[i].flags     = IORESOURCE_IRQ;
  69                 sr[i].start = sr[i].end = cd_irq;
  70                 i++;
  71         }
  72         if (eject_irq) {
  73                 sr[i].name      = "eject";
  74                 sr[i].flags     = IORESOURCE_IRQ;
  75                 sr[i].start = sr[i].end = eject_irq;
  76         }
  77
  78         pd->resource = sr;
  79         pd->num_resources = cnt;
  80
  81         ret = platform_device_add(pd);
  82         if (!ret)
  83                 return 0;
  84
  85         platform_device_put(pd);
  86 out:
  87         kfree(sr);
  88         return ret;
  89 }