target/linux/cns3xxx/patches-3.3/080-sata_support.patch

   1 --- a/arch/arm/mach-cns3xxx/devices.c
   2 +++ b/arch/arm/mach-cns3xxx/devices.c
   3 @@ -41,7 +41,7 @@ static struct resource cns3xxx_ahci_reso
   4  static u64 cns3xxx_ahci_dmamask = DMA_BIT_MASK(32);
   5
   6  static struct platform_device cns3xxx_ahci_pdev = {
   7 -       .name           = "ahci",
   8 +       .name           = "ahci-cns3xxx",
   9         .id             = 0,
  10         .resource       = cns3xxx_ahci_resource,
  11         .num_resources  = ARRAY_SIZE(cns3xxx_ahci_resource),
  12 --- a/drivers/ata/ahci_platform.c
  13 +++ b/drivers/ata/ahci_platform.c
  14 @@ -27,6 +27,7 @@ enum ahci_type {
  15         AHCI,           /* standard platform ahci */
  16         IMX53_AHCI,     /* ahci on i.mx53 */
  17         STRICT_AHCI,    /* delayed DMA engine start */
  18 +       CNS3XXX_AHCI,   /* AHCI on cns3xxx */
  19  };
  20
  21  static struct platform_device_id ahci_devtype[] = {
  22 @@ -40,11 +41,32 @@ static struct platform_device_id ahci_de
  23                 .name = "strict-ahci",
  24                 .driver_data = STRICT_AHCI,
  25         }, {
  26 +               .name = "ahci-cns3xxx",
  27 +               .driver_data = CNS3XXX_AHCI,
  28 +       }, {
  29                 /* sentinel */
  30         }
  31  };
  32  MODULE_DEVICE_TABLE(platform, ahci_devtype);
  33
  34 +static int
  35 +cns3xxx_ahci_softreset(struct ata_link *link, unsigned int *class,
  36 +                      unsigned long deadline)
  37 +{
  38 +       int pmp = sata_srst_pmp(link);
  39 +       int ret;
  40 +
  41 +       ret = ahci_do_softreset(link, class, pmp, deadline, ahci_check_ready);
  42 +       if (pmp && ret)
  43 +               return ahci_do_softreset(link, class, 0, deadline,
  44 +                       ahci_check_ready);
  45 +       return ret;
  46 +}
  47 +
  48 +static struct ata_port_operations cns3xxx_ahci_ops = {
  49 +       .inherits               = &ahci_ops,
  50 +       .softreset              = cns3xxx_ahci_softreset,
  51 +};
  52
  53  static const struct ata_port_info ahci_port_info[] = {
  54         /* by features */
  55 @@ -67,13 +89,19 @@ static const struct ata_port_info ahci_p
  56                 .udma_mask      = ATA_UDMA6,
  57                 .port_ops       = &ahci_ops,
  58         },
  59 +       [CNS3XXX_AHCI] = {
  60 +               .flags          = AHCI_FLAG_COMMON,
  61 +               .pio_mask       = ATA_PIO4,
  62 +               .udma_mask      = ATA_UDMA6,
  63 +               .port_ops       = &cns3xxx_ahci_ops,
  64 +       }
  65  };
  66
  67  static struct scsi_host_template ahci_platform_sht = {
  68         AHCI_SHT("ahci_platform"),
  69  };
  70
  71 -static int __init ahci_probe(struct platform_device *pdev)
  72 +static int __devinit ahci_probe(struct platform_device *pdev)
  73  {
  74         struct device *dev = &pdev->dev;
  75         struct ahci_platform_data *pdata = dev_get_platdata(dev);
  76 @@ -285,6 +313,7 @@ static const struct of_device_id ahci_of
  77  MODULE_DEVICE_TABLE(of, ahci_of_match);
  78
  79  static struct platform_driver ahci_driver = {
  80 +       .probe = ahci_probe,
  81         .remove = __devexit_p(ahci_remove),
  82         .driver = {
  83                 .name = "ahci",
  84 @@ -299,7 +328,7 @@ static struct platform_driver ahci_drive
  85
  86  static int __init ahci_init(void)
  87  {
  88 -       return platform_driver_probe(&ahci_driver, ahci_probe);
  89 +       return platform_driver_register(&ahci_driver);
  90  }
  91  module_init(ahci_init);
  92
  93 @@ -312,4 +341,3 @@ module_exit(ahci_exit);
  94  MODULE_DESCRIPTION("AHCI SATA platform driver");
  95  MODULE_AUTHOR("Anton Vorontsov <avorontsov@ru.mvista.com>");
  96  MODULE_LICENSE("GPL");
  97 -MODULE_ALIAS("platform:ahci");