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sata_mv: Support SoC controllers 

Marvell's Orion SoC includes SATA controllers based on Marvell's
PCI-to-SATA 88SX controllers. This patch extends the libATA sata_mv
driver to support those controllers.

[edited to use linux/ata_platform.h -jg]

Signed-off-by: Saeed Bishara <saeed@marvell.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
hifive-unleashed-5.1
Saeed Bishara 2008-02-01 18:08:03 -05:00 committed by Jeff Garzik
parent 0a87e3e92b
commit f351b2d638
2 changed files with 330 additions and 48 deletions
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365
drivers/ata/sata_mv.c
View File

@ -71,6 +71,8 @@
#include <linux/interrupt.h>
#include <linux/dma-mapping.h>
#include <linux/device.h>
#include <linux/platform_device.h>
#include <linux/ata_platform.h>
#include <scsi/scsi_host.h>
#include <scsi/scsi_cmnd.h>
#include <scsi/scsi_device.h>
@ -179,6 +181,8 @@ enum {
HC_MAIN_IRQ_CAUSE_OFS = 0x1d60,
HC_MAIN_IRQ_MASK_OFS = 0x1d64,
HC_SOC_MAIN_IRQ_CAUSE_OFS = 0x20020,
HC_SOC_MAIN_IRQ_MASK_OFS = 0x20024,
PORT0_ERR = (1 << 0), /* shift by port # */
PORT0_DONE = (1 << 1), /* shift by port # */
HC0_IRQ_PEND = 0x1ff, /* bits 0-8 = HC0's ports */
@ -194,11 +198,13 @@ enum {
TWSI_INT = (1 << 24),
HC_MAIN_RSVD = (0x7f << 25), /* bits 31-25 */
HC_MAIN_RSVD_5 = (0x1fff << 19), /* bits 31-19 */
HC_MAIN_RSVD_SOC = (0x3fffffb << 6), /* bits 31-9, 7-6 */
HC_MAIN_MASKED_IRQS = (TRAN_LO_DONE | TRAN_HI_DONE |
PORTS_0_7_COAL_DONE | GPIO_INT | TWSI_INT |
HC_MAIN_RSVD),
HC_MAIN_MASKED_IRQS_5 = (PORTS_0_3_COAL_DONE | PORTS_4_7_COAL_DONE |
HC_MAIN_RSVD_5),
HC_MAIN_MASKED_IRQS_SOC = (PORTS_0_3_COAL_DONE | HC_MAIN_RSVD_SOC),
/* SATAHC registers */
HC_CFG_OFS = 0,
@ -368,6 +374,7 @@ enum chip_type {
chip_608x,
chip_6042,
chip_7042,
chip_soc,
};
/* Command ReQuest Block: 32B */
@ -424,6 +431,10 @@ struct mv_host_priv {
u32 hp_flags;
struct mv_port_signal signal[8];
const struct mv_hw_ops *ops;
int n_ports;
void __iomem *base;
void __iomem *main_cause_reg_addr;
void __iomem *main_mask_reg_addr;
u32 irq_cause_ofs;
u32 irq_mask_ofs;
u32 unmask_all_irqs;
@ -482,6 +493,15 @@ static void mv6_read_preamp(struct mv_host_priv *hpriv, int idx,
static int mv6_reset_hc(struct mv_host_priv *hpriv, void __iomem *mmio,
unsigned int n_hc);
static void mv6_reset_flash(struct mv_host_priv *hpriv, void __iomem *mmio);
static void mv_soc_enable_leds(struct mv_host_priv *hpriv,
void __iomem *mmio);
static void mv_soc_read_preamp(struct mv_host_priv *hpriv, int idx,
void __iomem *mmio);
static int mv_soc_reset_hc(struct mv_host_priv *hpriv,
void __iomem *mmio, unsigned int n_hc);
static void mv_soc_reset_flash(struct mv_host_priv *hpriv,
void __iomem *mmio);
static void mv_soc_reset_bus(struct ata_host *host, void __iomem *mmio);
static void mv_reset_pci_bus(struct ata_host *host, void __iomem *mmio);
static void mv_channel_reset(struct mv_host_priv *hpriv, void __iomem *mmio,
unsigned int port_no);
@ -661,6 +681,12 @@ static const struct ata_port_info mv_port_info[] = {
.udma_mask = ATA_UDMA6,
.port_ops = &mv_iie_ops,
},
{ /* chip_soc */
.flags = MV_COMMON_FLAGS | MV_FLAG_SOC,
.pio_mask = 0x1f, /* pio0-4 */
.udma_mask = ATA_UDMA6,
.port_ops = &mv_iie_ops,
},
};
static const struct pci_device_id mv_pci_tbl[] = {
@ -711,6 +737,15 @@ static const struct mv_hw_ops mv6xxx_ops = {
.reset_bus = mv_reset_pci_bus,
};
static const struct mv_hw_ops mv_soc_ops = {
.phy_errata = mv6_phy_errata,
.enable_leds = mv_soc_enable_leds,
.read_preamp = mv_soc_read_preamp,
.reset_hc = mv_soc_reset_hc,
.reset_flash = mv_soc_reset_flash,
.reset_bus = mv_soc_reset_bus,
};
/*
* Functions
*/
@ -749,9 +784,15 @@ static inline void __iomem *mv_port_base(void __iomem *base, unsigned int port)
(mv_hardport_from_port(port) * MV_PORT_REG_SZ);
}
static inline void __iomem *mv_host_base(struct ata_host *host)
{
struct mv_host_priv *hpriv = host->private_data;
return hpriv->base;
}
static inline void __iomem *mv_ap_base(struct ata_port *ap)
{
return mv_port_base(ap->host->iomap[MV_PRIMARY_BAR], ap->port_no);
return mv_port_base(mv_host_base(ap->host), ap->port_no);
}
static inline int mv_get_hc_count(unsigned long port_flags)
@ -1649,16 +1690,21 @@ static void mv_intr_edma(struct ata_port *ap)
*/
static void mv_host_intr(struct ata_host *host, u32 relevant, unsigned int hc)
{
void __iomem *mmio = host->iomap[MV_PRIMARY_BAR];
struct mv_host_priv *hpriv = host->private_data;
void __iomem *mmio = hpriv->base;
void __iomem *hc_mmio = mv_hc_base(mmio, hc);
u32 hc_irq_cause;
int port, port0;
int port, port0, last_port;
if (hc == 0)
port0 = 0;
else
port0 = MV_PORTS_PER_HC;
if (HAS_PCI(host))
last_port = port0 + MV_PORTS_PER_HC;
else
last_port = port0 + hpriv->n_ports;
/* we'll need the HC success int register in most cases */
hc_irq_cause = readl(hc_mmio + HC_IRQ_CAUSE_OFS);
if (!hc_irq_cause)
@ -1669,7 +1715,7 @@ static void mv_host_intr(struct ata_host *host, u32 relevant, unsigned int hc)
VPRINTK("ENTER, hc%u relevant=0x%08x HC IRQ cause=0x%08x\n",
hc, relevant, hc_irq_cause);
for (port = port0; port < port0 + MV_PORTS_PER_HC; port++) {
for (port = port0; port < port0 + last_port; port++) {
struct ata_port *ap = host->ports[port];
struct mv_port_priv *pp = ap->private_data;
int have_err_bits, hard_port, shift;
@ -1764,13 +1810,15 @@ static void mv_pci_error(struct ata_host *host, void __iomem *mmio)
static irqreturn_t mv_interrupt(int irq, void *dev_instance)
{
struct ata_host *host = dev_instance;
struct mv_host_priv *hpriv = host->private_data;
unsigned int hc, handled = 0, n_hcs;
void __iomem *mmio = host->iomap[MV_PRIMARY_BAR];
void __iomem *mmio = hpriv->base;
u32 irq_stat, irq_mask;
spin_lock(&host->lock);
irq_stat = readl(mmio + HC_MAIN_IRQ_CAUSE_OFS);
irq_mask = readl(mmio + HC_MAIN_IRQ_MASK_OFS);
irq_stat = readl(hpriv->main_cause_reg_addr);
irq_mask = readl(hpriv->main_mask_reg_addr);
/* check the cases where we either have nothing pending or have read
* a bogus register value which can indicate HW removal or PCI fault
@ -1827,7 +1875,8 @@ static unsigned int mv5_scr_offset(unsigned int sc_reg_in)
static int mv5_scr_read(struct ata_port *ap, unsigned int sc_reg_in, u32 *val)
{
void __iomem *mmio = ap->host->iomap[MV_PRIMARY_BAR];
struct mv_host_priv *hpriv = ap->host->private_data;
void __iomem *mmio = hpriv->base;
void __iomem *addr = mv5_phy_base(mmio, ap->port_no);
unsigned int ofs = mv5_scr_offset(sc_reg_in);
@ -1840,7 +1889,8 @@ static int mv5_scr_read(struct ata_port *ap, unsigned int sc_reg_in, u32 *val)
static int mv5_scr_write(struct ata_port *ap, unsigned int sc_reg_in, u32 val)
{
void __iomem *mmio = ap->host->iomap[MV_PRIMARY_BAR];
struct mv_host_priv *hpriv = ap->host->private_data;
void __iomem *mmio = hpriv->base;
void __iomem *addr = mv5_phy_base(mmio, ap->port_no);
unsigned int ofs = mv5_scr_offset(sc_reg_in);
@ -2178,6 +2228,93 @@ static void mv6_phy_errata(struct mv_host_priv *hpriv, void __iomem *mmio,
writel(m2, port_mmio + PHY_MODE2);
}
/* TODO: use the generic LED interface to configure the SATA Presence */
/* & Acitivy LEDs on the board */
static void mv_soc_enable_leds(struct mv_host_priv *hpriv,
void __iomem *mmio)
{
return;
}
static void mv_soc_read_preamp(struct mv_host_priv *hpriv, int idx,
void __iomem *mmio)
{
void __iomem *port_mmio;
u32 tmp;
port_mmio = mv_port_base(mmio, idx);
tmp = readl(port_mmio + PHY_MODE2);
hpriv->signal[idx].amps = tmp & 0x700; /* bits 10:8 */
hpriv->signal[idx].pre = tmp & 0xe0; /* bits 7:5 */
}
#undef ZERO
#define ZERO(reg) writel(0, port_mmio + (reg))
static void mv_soc_reset_hc_port(struct mv_host_priv *hpriv,
void __iomem *mmio, unsigned int port)
{
void __iomem *port_mmio = mv_port_base(mmio, port);
writelfl(EDMA_DS, port_mmio + EDMA_CMD_OFS);
mv_channel_reset(hpriv, mmio, port);
ZERO(0x028); /* command */
writel(0x101f, port_mmio + EDMA_CFG_OFS);
ZERO(0x004); /* timer */
ZERO(0x008); /* irq err cause */
ZERO(0x00c); /* irq err mask */
ZERO(0x010); /* rq bah */
ZERO(0x014); /* rq inp */
ZERO(0x018); /* rq outp */
ZERO(0x01c); /* respq bah */
ZERO(0x024); /* respq outp */
ZERO(0x020); /* respq inp */
ZERO(0x02c); /* test control */
writel(0xbc, port_mmio + EDMA_IORDY_TMOUT);
}
#undef ZERO
#define ZERO(reg) writel(0, hc_mmio + (reg))
static void mv_soc_reset_one_hc(struct mv_host_priv *hpriv,
void __iomem *mmio)
{
void __iomem *hc_mmio = mv_hc_base(mmio, 0);
ZERO(0x00c);
ZERO(0x010);
ZERO(0x014);
}
#undef ZERO
static int mv_soc_reset_hc(struct mv_host_priv *hpriv,
void __iomem *mmio, unsigned int n_hc)
{
unsigned int port;
for (port = 0; port < hpriv->n_ports; port++)
mv_soc_reset_hc_port(hpriv, mmio, port);
mv_soc_reset_one_hc(hpriv, mmio);
return 0;
}
static void mv_soc_reset_flash(struct mv_host_priv *hpriv,
void __iomem *mmio)
{
return;
}
static void mv_soc_reset_bus(struct ata_host *host, void __iomem *mmio)
{
return;
}
static void mv_channel_reset(struct mv_host_priv *hpriv, void __iomem *mmio,
unsigned int port_no)
{
@ -2342,7 +2479,7 @@ static int mv_hardreset(struct ata_link *link, unsigned int *class,
{
struct ata_port *ap = link->ap;
struct mv_host_priv *hpriv = ap->host->private_data;
void __iomem *mmio = ap->host->iomap[MV_PRIMARY_BAR];
void __iomem *mmio = hpriv->base;
mv_stop_dma(ap);
@ -2383,7 +2520,7 @@ static void mv_error_handler(struct ata_port *ap)
static void mv_eh_freeze(struct ata_port *ap)
{
void __iomem *mmio = ap->host->iomap[MV_PRIMARY_BAR];
struct mv_host_priv *hpriv = ap->host->private_data;
unsigned int hc = (ap->port_no > 3) ? 1 : 0;
u32 tmp, mask;
unsigned int shift;
@ -2397,13 +2534,14 @@ static void mv_eh_freeze(struct ata_port *ap)
mask = 0x3 << shift;
/* disable assertion of portN err, done events */
tmp = readl(mmio + HC_MAIN_IRQ_MASK_OFS);
writelfl(tmp & ~mask, mmio + HC_MAIN_IRQ_MASK_OFS);
tmp = readl(hpriv->main_mask_reg_addr);
writelfl(tmp & ~mask, hpriv->main_mask_reg_addr);
}
static void mv_eh_thaw(struct ata_port *ap)
{
void __iomem *mmio = ap->host->iomap[MV_PRIMARY_BAR];
struct mv_host_priv *hpriv = ap->host->private_data;
void __iomem *mmio = hpriv->base;
unsigned int hc = (ap->port_no > 3) ? 1 : 0;
void __iomem *hc_mmio = mv_hc_base(mmio, hc);
void __iomem *port_mmio = mv_ap_base(ap);
@ -2430,8 +2568,8 @@ static void mv_eh_thaw(struct ata_port *ap)
writel(hc_irq_cause, hc_mmio + HC_IRQ_CAUSE_OFS);
/* enable assertion of portN err, done events */
tmp = readl(mmio + HC_MAIN_IRQ_MASK_OFS);
writelfl(tmp | mask, mmio + HC_MAIN_IRQ_MASK_OFS);
tmp = readl(hpriv->main_mask_reg_addr);
writelfl(tmp | mask, hpriv->main_mask_reg_addr);
}
/**
@ -2598,9 +2736,13 @@ static int mv_chip_id(struct ata_host *host, unsigned int board_idx)
break;
}
break;
case chip_soc:
hpriv->ops = &mv_soc_ops;
hp_flags |= MV_HP_ERRATA_60X1C0;
break;
default:
dev_printk(KERN_ERR, &pdev->dev,
dev_printk(KERN_ERR, host->dev,
"BUG: invalid board index %u\n", board_idx);
return 1;
}
@ -2633,15 +2775,25 @@ static int mv_chip_id(struct ata_host *host, unsigned int board_idx)
static int mv_init_host(struct ata_host *host, unsigned int board_idx)
{
int rc = 0, n_hc, port, hc;
void __iomem *mmio = host->iomap[MV_PRIMARY_BAR];
struct mv_host_priv *hpriv = host->private_data;
/* global interrupt mask */
writel(0, mmio + HC_MAIN_IRQ_MASK_OFS);
void __iomem *mmio = hpriv->base;
rc = mv_chip_id(host, board_idx);
if (rc)
goto done;
goto done;
if (HAS_PCI(host)) {
hpriv->main_cause_reg_addr = hpriv->base +
HC_MAIN_IRQ_CAUSE_OFS;
hpriv->main_mask_reg_addr = hpriv->base + HC_MAIN_IRQ_MASK_OFS;
} else {
hpriv->main_cause_reg_addr = hpriv->base +
HC_SOC_MAIN_IRQ_CAUSE_OFS;
hpriv->main_mask_reg_addr = hpriv->base +
HC_SOC_MAIN_IRQ_MASK_OFS;
}
/* global interrupt mask */
writel(0, hpriv->main_mask_reg_addr);
n_hc = mv_get_hc_count(host->ports[0]->flags);
@ -2672,13 +2824,15 @@ static int mv_init_host(struct ata_host *host, unsigned int board_idx)
for (port = 0; port < host->n_ports; port++) {
struct ata_port *ap = host->ports[port];
void __iomem *port_mmio = mv_port_base(mmio, port);
unsigned int offset = port_mmio - mmio;
mv_port_init(&ap->ioaddr, port_mmio);
#ifdef CONFIG_PCI
ata_port_pbar_desc(ap, MV_PRIMARY_BAR, -1, "mmio");
ata_port_pbar_desc(ap, MV_PRIMARY_BAR, offset, "port");
if (HAS_PCI(host)) {
unsigned int offset = port_mmio - mmio;
ata_port_pbar_desc(ap, MV_PRIMARY_BAR, -1, "mmio");
ata_port_pbar_desc(ap, MV_PRIMARY_BAR, offset, "port");
}
#endif
}
@ -2694,35 +2848,141 @@ static int mv_init_host(struct ata_host *host, unsigned int board_idx)
writelfl(0, hc_mmio + HC_IRQ_CAUSE_OFS);
}
/* Clear any currently outstanding host interrupt conditions */
writelfl(0, mmio + hpriv->irq_cause_ofs);
if (HAS_PCI(host)) {
/* Clear any currently outstanding host interrupt conditions */
writelfl(0, mmio + hpriv->irq_cause_ofs);
/* and unmask interrupt generation for host regs */
writelfl(hpriv->unmask_all_irqs, mmio + hpriv->irq_mask_ofs);
if (IS_GEN_I(hpriv))
writelfl(~HC_MAIN_MASKED_IRQS_5, mmio + HC_MAIN_IRQ_MASK_OFS);
else
writelfl(~HC_MAIN_MASKED_IRQS, mmio + HC_MAIN_IRQ_MASK_OFS);
VPRINTK("HC MAIN IRQ cause/mask=0x%08x/0x%08x "
"PCI int cause/mask=0x%08x/0x%08x\n",
readl(mmio + HC_MAIN_IRQ_CAUSE_OFS),
readl(mmio + HC_MAIN_IRQ_MASK_OFS),
readl(mmio + hpriv->irq_cause_ofs),
readl(mmio + hpriv->irq_mask_ofs));
/* and unmask interrupt generation for host regs */
writelfl(hpriv->unmask_all_irqs, mmio + hpriv->irq_mask_ofs);
if (IS_GEN_I(hpriv))
writelfl(~HC_MAIN_MASKED_IRQS_5,
hpriv->main_mask_reg_addr);
else
writelfl(~HC_MAIN_MASKED_IRQS,
hpriv->main_mask_reg_addr);
VPRINTK("HC MAIN IRQ cause/mask=0x%08x/0x%08x "
"PCI int cause/mask=0x%08x/0x%08x\n",
readl(hpriv->main_cause_reg_addr),
readl(hpriv->main_mask_reg_addr),
readl(mmio + hpriv->irq_cause_ofs),
readl(mmio + hpriv->irq_mask_ofs));
} else {
writelfl(~HC_MAIN_MASKED_IRQS_SOC,
hpriv->main_mask_reg_addr);
VPRINTK("HC MAIN IRQ cause/mask=0x%08x/0x%08x\n",
readl(hpriv->main_cause_reg_addr),
readl(hpriv->main_mask_reg_addr));
}
done:
return rc;
}
/**
* mv_platform_probe - handle a positive probe of an soc Marvell
* host
* @pdev: platform device found
*
* LOCKING:
* Inherited from caller.
*/
static int mv_platform_probe(struct platform_device *pdev)
{
static int printed_version;
const struct mv_sata_platform_data *mv_platform_data;
const struct ata_port_info *ppi[] =
{ &mv_port_info[chip_soc], NULL };
struct ata_host *host;
struct mv_host_priv *hpriv;
struct resource *res;
int n_ports, rc;
if (!printed_version++)
dev_printk(KERN_INFO, &pdev->dev, "version " DRV_VERSION "\n");
/*
* Simple resource validation ..
*/
if (unlikely(pdev->num_resources != 2)) {
dev_err(&pdev->dev, "invalid number of resources\n");
return -EINVAL;
}
/*
* Get the register base first
*/
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (res == NULL)
return -EINVAL;
/* allocate host */
mv_platform_data = pdev->dev.platform_data;
n_ports = mv_platform_data->n_ports;
host = ata_host_alloc_pinfo(&pdev->dev, ppi, n_ports);
hpriv = devm_kzalloc(&pdev->dev, sizeof(*hpriv), GFP_KERNEL);
if (!host || !hpriv)
return -ENOMEM;
host->private_data = hpriv;
hpriv->n_ports = n_ports;
host->iomap = NULL;
hpriv->base = ioremap(res->start, res->end - res->start + 1);
hpriv->base -= MV_SATAHC0_REG_BASE;
/* initialize adapter */
rc = mv_init_host(host, chip_soc);
if (rc)
return rc;
dev_printk(KERN_INFO, &pdev->dev,
"slots %u ports %d\n", (unsigned)MV_MAX_Q_DEPTH,
host->n_ports);
return ata_host_activate(host, platform_get_irq(pdev, 0), mv_interrupt,
IRQF_SHARED, &mv6_sht);
}
/*
*
* mv_platform_remove - unplug a platform interface
* @pdev: platform device
*
* A platform bus SATA device has been unplugged. Perform the needed
* cleanup. Also called on module unload for any active devices.
*/
static int __devexit mv_platform_remove(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct ata_host *host = dev_get_drvdata(dev);
struct mv_host_priv *hpriv = host->private_data;
void __iomem *base = hpriv->base;
ata_host_detach(host);
iounmap(base);
return 0;
}
static struct platform_driver mv_platform_driver = {
.probe = mv_platform_probe,
.remove = __devexit_p(mv_platform_remove),
.driver = {
.name = DRV_NAME,
.owner = THIS_MODULE,
},
};
#ifdef CONFIG_PCI
static int mv_init_one(struct pci_dev *pdev, const struct pci_device_id *ent);
static int mv_pci_init_one(struct pci_dev *pdev,
const struct pci_device_id *ent);
static struct pci_driver mv_pci_driver = {
.name = DRV_NAME,
.id_table = mv_pci_tbl,
.probe = mv_init_one,
.probe = mv_pci_init_one,
.remove = ata_pci_remove_one,
};
@ -2828,14 +3088,15 @@ static int mv_create_dma_pools(struct mv_host_priv *hpriv, struct device *dev)
}
/**
* mv_init_one - handle a positive probe of a Marvell host
* mv_pci_init_one - handle a positive probe of a PCI Marvell host
* @pdev: PCI device found
* @ent: PCI device ID entry for the matched host
*
* LOCKING:
* Inherited from caller.
*/
static int mv_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
static int mv_pci_init_one(struct pci_dev *pdev,
const struct pci_device_id *ent)
{
static int printed_version;
unsigned int board_idx = (unsigned int)ent->driver_data;
@ -2855,6 +3116,7 @@ static int mv_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
if (!host || !hpriv)
return -ENOMEM;
host->private_data = hpriv;
hpriv->n_ports = n_ports;
/* acquire resources */
rc = pcim_enable_device(pdev);
@ -2867,6 +3129,7 @@ static int mv_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
if (rc)
return rc;
host->iomap = pcim_iomap_table(pdev);
hpriv->base = host->iomap[MV_PRIMARY_BAR];
rc = pci_go_64(pdev);
if (rc)
@ -2895,11 +3158,22 @@ static int mv_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
}
#endif
static int mv_platform_probe(struct platform_device *pdev);
static int __devexit mv_platform_remove(struct platform_device *pdev);
static int __init mv_init(void)
{
int rc = -ENODEV;
#ifdef CONFIG_PCI
rc = pci_register_driver(&mv_pci_driver);
if (rc < 0)
return rc;
#endif
rc = platform_driver_register(&mv_platform_driver);
#ifdef CONFIG_PCI
if (rc < 0)
pci_unregister_driver(&mv_pci_driver);
#endif
return rc;
}
@ -2909,6 +3183,7 @@ static void __exit mv_exit(void)
#ifdef CONFIG_PCI
pci_unregister_driver(&mv_pci_driver);
#endif
platform_driver_unregister(&mv_platform_driver);
}
MODULE_AUTHOR("Brett Russ");

13
include/linux/ata_platform.h
View File

@ -1,5 +1,5 @@
#ifndef __LINUX_PATA_PLATFORM_H
#define __LINUX_PATA_PLATFORM_H
#ifndef __LINUX_ATA_PLATFORM_H
#define __LINUX_ATA_PLATFORM_H
struct pata_platform_info {
/*
@ -24,4 +24,11 @@ extern int __devinit __pata_platform_probe(struct device *dev,
extern int __devexit __pata_platform_remove(struct device *dev);
#endif /* __LINUX_PATA_PLATFORM_H */
/*
* Marvell SATA private data
*/
struct mv_sata_platform_data {
int n_ports; /* number of sata ports */
};
#endif /* __LINUX_ATA_PLATFORM_H */