target/linux/cns3xxx/patches-3.1/106-cns3xxx_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/Kconfig
  13 +++ b/drivers/ata/Kconfig
  14 @@ -83,6 +83,17 @@ config SATA_AHCI_PLATFORM
  15
  16           If unsure, say N.
  17
  18 +config SATA_AHCI_CNS3XXX
  19 +       bool "AHCI Support on the Cavium Networks CNS3xxx SOC"
  20 +       depends on ARCH_CNS3XXX
  21 +       depends on SATA_AHCI_PLATFORM
  22 +       help
  23 +         This option enables AHCI platform driver to support CNS3xxx
  24 +         System-on-Chip devices. This is only needed when using CNS3xxx AHCI
  25 +         controller.
  26 +
  27 +         If unsure, say N.
  28 +
  29  config SATA_FSL
  30         tristate "Freescale 3.0Gbps SATA support"
  31         depends on FSL_SOC
  32 --- a/drivers/ata/Makefile
  33 +++ b/drivers/ata/Makefile
  34 @@ -4,7 +4,10 @@ obj-$(CONFIG_ATA)              += libata.o
  35  # non-SFF interface
  36  obj-$(CONFIG_SATA_AHCI)                += ahci.o libahci.o
  37  obj-$(CONFIG_SATA_ACARD_AHCI)  += acard-ahci.o libahci.o
  38 -obj-$(CONFIG_SATA_AHCI_PLATFORM) += ahci_platform.o libahci.o
  39 +obj-$(CONFIG_SATA_AHCI_PLATFORM) += ahci_platforms.o libahci.o
  40 +ahci_platforms-y               += ahci_platform.o
  41 +ahci_platforms-$(CONFIG_SATA_AHCI_CNS3XXX) += ahci_cns3xxx.o
  42 +
  43  obj-$(CONFIG_SATA_FSL)         += sata_fsl.o
  44  obj-$(CONFIG_SATA_INIC162X)    += sata_inic162x.o
  45  obj-$(CONFIG_SATA_SIL24)       += sata_sil24.o
  46 --- /dev/null
  47 +++ b/drivers/ata/ahci_cns3xxx.c
  48 @@ -0,0 +1,52 @@
  49 +/*
  50 + * AHCI support for CNS3xxx SoC
  51 + *
  52 + * Copyright 2010 MontaVista Software, LLC.
  53 + * Copyright 2010 Cavium Networks
  54 + *
  55 + * Authors: Anton Vorontsov <avorontsov@xxxxxxxxxx>
  56 + *         Mac Lin <mkl0301@xxxxxxxxx>
  57 + *
  58 + * This program is free software; you can redistribute it and/or modify
  59 + * it under the terms of the GNU General Public License version 2 as
  60 + * published by the Free Software Foundation.
  61 + */
  62 +
  63 +#include <linux/libata.h>
  64 +#include <linux/ahci_platform.h>
  65 +#include "ahci.h"
  66 +
  67 +/*
  68 + * TODO: move cns3xxx_ahci_init to here after cns3xxx_pwr*() calls are
  69 + * thread-safe
  70 + */
  71 +
  72 +static int cns3xxx_ahci_softreset(struct ata_link *link, unsigned int *class,
  73 +                         unsigned long deadline)
  74 +{
  75 +       int pmp = sata_srst_pmp(link);
  76 +       int ret;
  77 +
  78 +       ret = ahci_do_softreset(link, class, pmp, deadline, ahci_check_ready);
  79 +       if (pmp && ret)
  80 +               return ahci_do_softreset(link, class, 0, deadline,
  81 +                       ahci_check_ready);
  82 +       return ret;
  83 +}
  84 +
  85 +static struct ata_port_operations cns3xxx_ahci_ops = {
  86 +       .inherits               = &ahci_ops,
  87 +       .softreset              = cns3xxx_ahci_softreset,
  88 +};
  89 +
  90 +static const struct ata_port_info cns3xxx_ata_port_info = {
  91 +       .flags          = AHCI_FLAG_COMMON,
  92 +       .pio_mask       = ATA_PIO4,
  93 +       .udma_mask      = ATA_UDMA6,
  94 +       .port_ops       = &cns3xxx_ahci_ops,
  95 +};
  96 +
  97 +struct ahci_platform_data cns3xxx_ahci_platform_data = {
  98 +       .ata_port_info  = &cns3xxx_ata_port_info,
  99 +};
 100 +
 101 --- a/drivers/ata/ahci_platform.c
 102 +++ b/drivers/ata/ahci_platform.c
 103 @@ -19,9 +19,11 @@
 104  #include <linux/interrupt.h>
 105  #include <linux/device.h>
 106  #include <linux/platform_device.h>
 107 +#include <linux/mod_devicetable.h>
 108  #include <linux/libata.h>
 109  #include <linux/ahci_platform.h>
 110  #include "ahci.h"
 111 +#include "ahci_platform.h"
 112
 113  static struct scsi_host_template ahci_platform_sht = {
 114         AHCI_SHT("ahci_platform"),
 115 @@ -29,6 +31,7 @@ static struct scsi_host_template ahci_pl
 116
 117  static int __init ahci_probe(struct platform_device *pdev)
 118  {
 119 +       const struct platform_device_id *platid = platform_get_device_id(pdev);
 120         struct device *dev = &pdev->dev;
 121         struct ahci_platform_data *pdata = dev->platform_data;
 122         struct ata_port_info pi = {
 123 @@ -46,6 +49,9 @@ static int __init ahci_probe(struct plat
 124         int i;
 125         int rc;
 126
 127 +       if (!pdata && platid && platid->driver_data)
 128 +               pdata = (void *)platid->driver_data;
 129 +
 130         mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 131         if (!mem) {
 132                 dev_err(dev, "no mmio space\n");
 133 @@ -171,17 +177,28 @@ static int __devexit ahci_remove(struct
 134         return 0;
 135  }
 136
 137 +static const struct platform_device_id ahci_platform_ids[] = {
 138 +       { "ahci", },
 139 +#ifdef CONFIG_SATA_AHCI_CNS3XXX
 140 +       { "ahci-cns3xxx", (kernel_ulong_t)&cns3xxx_ahci_platform_data},
 141 +#endif
 142 +       { },
 143 +};
 144 +MODULE_DEVICE_TABLE(platform, ahci_platform_ids);
 145 +
 146  static struct platform_driver ahci_driver = {
 147 -       .remove = __devexit_p(ahci_remove),
 148         .driver = {
 149                 .name = "ahci",
 150                 .owner = THIS_MODULE,
 151         },
 152 +       .probe  = ahci_probe,
 153 +       .remove = __devexit_p(ahci_remove),
 154 +       .id_table = ahci_platform_ids,
 155  };
 156
 157  static int __init ahci_init(void)
 158  {
 159 -       return platform_driver_probe(&ahci_driver, ahci_probe);
 160 +       return platform_driver_register(&ahci_driver);
 161  }
 162  module_init(ahci_init);
 163
 164 @@ -194,4 +211,3 @@ module_exit(ahci_exit);
 165  MODULE_DESCRIPTION("AHCI SATA platform driver");
 166  MODULE_AUTHOR("Anton Vorontsov <avorontsov@ru.mvista.com>");
 167  MODULE_LICENSE("GPL");
 168 -MODULE_ALIAS("platform:ahci");
 169 --- /dev/null
 170 +++ b/drivers/ata/ahci_platform.h
 171 @@ -0,0 +1,19 @@
 172 +/*
 173 + * Copyright 2010 MontaVista Software, LLC.
 174 + * Copyright 2010 Cavium Networks
 175 + *
 176 + * Authors: Anton Vorontsov <avorontsov@xxxxxxxxxx>
 177 + *         Mac Lin <mkl0301@xxxxxxxxx>
 178 + *
 179 + * This program is free software; you can redistribute it and/or modify
 180 + * it under the terms of the GNU General Public License version 2 as
 181 + * published by the Free Software Foundation.
 182 + */
 183 +
 184 +#ifndef _DRIVERS_SATA_AHCI_PLATFORMS_H
 185 +#define _DRIVERS_SATA_AHCI_PLATFORMS_H
 186 +
 187 +extern struct ahci_platform_data cns3xxx_ahci_platform_data;
 188 +
 189 +#endif /*_DRIVERS_SATA_AHCI_PLATFORMS_H*/
 190 +