arch/mips/bcm63xx/dev-hsspi.c

   1 /*
   2  * This file is subject to the terms and conditions of the GNU General Public
   3  * License.  See the file "COPYING" in the main directory of this archive
   4  * for more details.
   5  *
   6  * Copyright (C) 2012 Jonas Gorski <jonas.gorski@gmail.com>
   7  */
   8
   9 #include <linux/init.h>
  10 #include <linux/kernel.h>
  11 #include <linux/platform_device.h>
  12
  13 #include <bcm63xx_cpu.h>
  14 #include <bcm63xx_dev_hsspi.h>
  15 #include <bcm63xx_regs.h>
  16
  17 static struct resource spi_resources[] = {
  18         {
  19                 .start          = -1, /* filled at runtime */
  20                 .end            = -1, /* filled at runtime */
  21                 .flags          = IORESOURCE_MEM,
  22         },
  23         {
  24                 .start          = -1, /* filled at runtime */
  25                 .flags          = IORESOURCE_IRQ,
  26         },
  27 };
  28
  29 static struct platform_device bcm63xx_hsspi_device = {
  30         .name           = "bcm63xx-hsspi",
  31         .id             = 0,
  32         .num_resources  = ARRAY_SIZE(spi_resources),
  33         .resource       = spi_resources,
  34 };
  35
  36 int __init bcm63xx_hsspi_register(void)
  37 {
  38         if (!BCMCPU_IS_6328() && !BCMCPU_IS_6362())
  39                 return -ENODEV;
  40
  41         spi_resources[0].start = bcm63xx_regset_address(RSET_HSSPI);
  42         spi_resources[0].end = spi_resources[0].start;
  43         spi_resources[0].end += RSET_HSSPI_SIZE - 1;
  44         spi_resources[1].start = bcm63xx_get_irq_number(IRQ_HSSPI);
  45
  46         return platform_device_register(&bcm63xx_hsspi_device);
  47 }