#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>
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 */
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,
chip_608x,
chip_6042,
chip_7042,
+ chip_soc,
};
/* Command ReQuest Block: 32B */
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;
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);
.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[] = {
.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
*/
(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)
*/
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)
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;
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
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);
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);
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)
{
{
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);
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;
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);
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);
}
/**
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;
}
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);
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
}
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);
+ /* 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;
+}
- 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);
+/**
+ * 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;
- 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));
+ if (!printed_version++)
+ dev_printk(KERN_INFO, &pdev->dev, "version " DRV_VERSION "\n");
-done:
- return rc;
+ /*
+ * 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,
};
}
/**
- * 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;
if (!host || !hpriv)
return -ENOMEM;
host->private_data = hpriv;
+ hpriv->n_ports = n_ports;
/* acquire resources */
rc = pcim_enable_device(pdev);
if (rc)
return rc;
host->iomap = pcim_iomap_table(pdev);
+ hpriv->base = host->iomap[MV_PRIMARY_BAR];
rc = pci_go_64(pdev);
if (rc)
}
#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;
}
#ifdef CONFIG_PCI
pci_unregister_driver(&mv_pci_driver);
#endif
+ platform_driver_unregister(&mv_platform_driver);
}
MODULE_AUTHOR("Brett Russ");
projects / GitHub / mt8127 / android_kernel_alcatel_ttab.git / commitdiff