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https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-27 19:29:37 +00:00
[libata sata_mv] mv_hw_ops for hardware families; new errata
- eliminate a bunch of redundant tests by creating a per-chip-family set of hooks, mv_hw_ops - implement more errata, from newer Marvell GPL'd driver
This commit is contained in:
parent
ba3fe8fb6a
commit
47c2b677da
1 changed files with 160 additions and 140 deletions
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@ -83,16 +83,15 @@ enum {
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/* Host Flags */
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MV_FLAG_DUAL_HC = (1 << 30), /* two SATA Host Controllers */
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MV_FLAG_IRQ_COALESCE = (1 << 29), /* IRQ coalescing capability */
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MV_FLAG_GLBL_SFT_RST = (1 << 28), /* Global Soft Reset support */
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MV_COMMON_FLAGS = (ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY |
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ATA_FLAG_SATA_RESET | ATA_FLAG_MMIO),
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MV_6XXX_FLAGS = (MV_FLAG_IRQ_COALESCE |
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MV_FLAG_GLBL_SFT_RST),
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MV_6XXX_FLAGS = MV_FLAG_IRQ_COALESCE,
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chip_504x = 0,
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chip_508x = 1,
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chip_604x = 2,
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chip_608x = 3,
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chip_5080 = 2,
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chip_604x = 3,
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chip_608x = 4,
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CRQB_FLAG_READ = (1 << 0),
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CRQB_TAG_SHIFT = 1,
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@ -150,6 +149,7 @@ enum {
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/* SATA registers */
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SATA_STATUS_OFS = 0x300, /* ctrl, err regs follow status */
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SATA_ACTIVE_OFS = 0x350,
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PHY_MODE3 = 0x310,
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PHY_MODE4 = 0x314,
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PHY_MODE2 = 0x330,
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SATA_INTERFACE_CTL = 0x050,
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@ -209,23 +209,20 @@ enum {
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ATA_RST = (1 << 2),
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EDMA_ARB_CFG = 0x38,
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EDMA_NO_SNOOP = (1 << 6),
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/* Host private flags (hp_flags) */
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MV_HP_FLAG_MSI = (1 << 0),
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MV_HP_ERRATA_60X1A1 = (1 << 1),
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MV_HP_ERRATA_60X1B0 = (1 << 2),
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MV_HP_ERRATA_50XXB0 = (1 << 3),
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MV_HP_ERRATA_50XXB1 = (1 << 4),
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MV_HP_ERRATA_50XXB2 = (1 << 5),
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MV_HP_50XX = (1 << 6),
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MV_HP_ERRATA_50XXB0 = (1 << 1),
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MV_HP_ERRATA_50XXB2 = (1 << 2),
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MV_HP_ERRATA_60X1B2 = (1 << 3),
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MV_HP_ERRATA_60X1C0 = (1 << 4),
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MV_HP_50XX = (1 << 5),
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/* Port private flags (pp_flags) */
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MV_PP_FLAG_EDMA_EN = (1 << 0),
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MV_PP_FLAG_EDMA_DS_ACT = (1 << 1),
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};
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#define IS_50XX(hpriv) ((hpriv)->hp_flags & MV_HP_50XX)
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#define IS_60XX(hpriv) (((hpriv)->hp_flags & MV_HP_50XX) == 0)
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enum {
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@ -280,9 +277,19 @@ struct mv_port_signal {
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u32 pre;
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};
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struct mv_host_priv;
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struct mv_hw_ops {
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void (*phy_errata)(struct ata_port *ap);
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void (*enable_leds)(struct mv_host_priv *hpriv, void __iomem *mmio);
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void (*read_preamp)(struct mv_host_priv *hpriv, int idx,
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void __iomem *mmio);
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int (*reset_hc)(struct mv_host_priv *hpriv, void __iomem *mmio);
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};
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struct mv_host_priv {
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u32 hp_flags;
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struct mv_port_signal signal[8];
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const struct mv_hw_ops *ops;
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};
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static void mv_irq_clear(struct ata_port *ap);
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@ -299,6 +306,18 @@ static irqreturn_t mv_interrupt(int irq, void *dev_instance,
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static void mv_eng_timeout(struct ata_port *ap);
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static int mv_init_one(struct pci_dev *pdev, const struct pci_device_id *ent);
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static void mv5_phy_errata(struct ata_port *ap);
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static void mv5_enable_leds(struct mv_host_priv *hpriv, void __iomem *mmio);
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static void mv5_read_preamp(struct mv_host_priv *hpriv, int idx,
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void __iomem *mmio);
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static int mv5_reset_hc(struct mv_host_priv *hpriv, void __iomem *mmio);
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static void mv6_phy_errata(struct ata_port *ap);
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static void mv6_enable_leds(struct mv_host_priv *hpriv, void __iomem *mmio);
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static void mv6_read_preamp(struct mv_host_priv *hpriv, int idx,
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void __iomem *mmio);
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static int mv6_reset_hc(struct mv_host_priv *hpriv, void __iomem *mmio);
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static struct scsi_host_template mv_sht = {
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.module = THIS_MODULE,
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.name = DRV_NAME,
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@ -361,6 +380,13 @@ static struct ata_port_info mv_port_info[] = {
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.udma_mask = 0, /* 0x7f (udma0-6 disabled for now) */
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.port_ops = &mv_ops,
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},
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{ /* chip_5080 */
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.sht = &mv_sht,
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.host_flags = (MV_COMMON_FLAGS | MV_FLAG_DUAL_HC),
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.pio_mask = 0x1f, /* pio0-4 */
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.udma_mask = 0, /* 0x7f (udma0-6 disabled for now) */
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.port_ops = &mv_ops,
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},
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{ /* chip_604x */
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.sht = &mv_sht,
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.host_flags = (MV_COMMON_FLAGS | MV_6XXX_FLAGS),
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@ -382,7 +408,7 @@ static const struct pci_device_id mv_pci_tbl[] = {
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#if 0 /* unusably broken right now */
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{PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x5040), 0, 0, chip_504x},
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{PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x5041), 0, 0, chip_504x},
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{PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x5080), 0, 0, chip_508x},
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{PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x5080), 0, 0, chip_5080},
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{PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x5081), 0, 0, chip_508x},
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#endif
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@ -402,6 +428,20 @@ static struct pci_driver mv_pci_driver = {
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.remove = ata_pci_remove_one,
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};
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static const struct mv_hw_ops mv5xxx_ops = {
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.phy_errata = mv5_phy_errata,
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.enable_leds = mv5_enable_leds,
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.read_preamp = mv5_read_preamp,
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.reset_hc = mv5_reset_hc,
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};
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static const struct mv_hw_ops mv6xxx_ops = {
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.phy_errata = mv6_phy_errata,
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.enable_leds = mv6_enable_leds,
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.read_preamp = mv6_read_preamp,
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.reset_hc = mv6_reset_hc,
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};
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/*
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* Functions
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*/
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@ -624,9 +664,9 @@ static void mv_scr_write(struct ata_port *ap, unsigned int sc_reg_in, u32 val)
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* LOCKING:
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* Inherited from caller.
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*/
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static int mv_global_soft_reset(void __iomem *mmio_base)
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static int mv6_reset_hc(struct mv_host_priv *hpriv, void __iomem *mmio)
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{
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void __iomem *reg = mmio_base + PCI_MAIN_CMD_STS_OFS;
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void __iomem *reg = mmio + PCI_MAIN_CMD_STS_OFS;
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int i, rc = 0;
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u32 t;
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@ -721,7 +761,6 @@ static inline void mv_priv_free(struct mv_port_priv *pp, struct device *dev)
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static int mv_port_start(struct ata_port *ap)
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{
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struct device *dev = ap->host_set->dev;
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struct mv_host_priv *hpriv = ap->host_set->private_data;
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struct mv_port_priv *pp;
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void __iomem *port_mmio = mv_ap_base(ap);
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void *mem;
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@ -779,15 +818,6 @@ static int mv_port_start(struct ata_port *ap)
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writelfl(pp->crpb_dma & EDMA_RSP_Q_BASE_LO_MASK,
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port_mmio + EDMA_RSP_Q_OUT_PTR_OFS);
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if (hpriv->hp_flags & MV_HP_ERRATA_60X1A1) {
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u32 new_tmp, tmp;
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new_tmp = tmp = readl(port_mmio + EDMA_ARB_CFG);
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new_tmp &= ~EDMA_NO_SNOOP;
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if (new_tmp != tmp)
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writel(new_tmp, port_mmio + EDMA_ARB_CFG);
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}
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pp->req_producer = pp->rsp_consumer = 0;
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/* Don't turn on EDMA here...do it before DMA commands only. Else
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@ -1243,39 +1273,37 @@ static irqreturn_t mv_interrupt(int irq, void *dev_instance,
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return IRQ_RETVAL(handled);
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}
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static void mv_cfg_signal5(struct mv_host_priv *hpriv, int idx,
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static void mv5_read_preamp(struct mv_host_priv *hpriv, int idx,
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void __iomem *mmio)
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{
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/* FIXME */
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}
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static void mv_enable_leds5(struct mv_host_priv *hpriv, void __iomem *mmio)
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static void mv5_enable_leds(struct mv_host_priv *hpriv, void __iomem *mmio)
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{
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/* FIXME */
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}
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static void mv_phy_errata5(struct ata_port *ap)
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static void mv5_phy_errata(struct ata_port *ap)
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{
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/* FIXME */
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}
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static void mv_cfg_signal6(struct mv_host_priv *hpriv, int idx,
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static int mv5_reset_hc(struct mv_host_priv *hpriv, void __iomem *mmio)
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{
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/* FIXME */
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return 1;
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}
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static void mv6_read_preamp(struct mv_host_priv *hpriv, int idx,
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void __iomem *mmio)
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{
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void __iomem *port_mmio;
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u32 tmp;
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if (hpriv->hp_flags & MV_HP_ERRATA_60X1A1) {
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hpriv->signal[idx].amps = 0x5 << 8;
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hpriv->signal[idx].pre = 0x3 << 5;
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return;
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}
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assert (hpriv->hp_flags & MV_HP_ERRATA_60X1B0);
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tmp = readl(mmio + MV_RESET_CFG);
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if ((tmp & (1 << 0)) == 0) {
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hpriv->signal[idx].amps = 0x4 << 8;
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hpriv->signal[idx].amps = 0x7 << 8;
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hpriv->signal[idx].pre = 0x1 << 5;
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return;
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}
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@ -1287,34 +1315,57 @@ static void mv_cfg_signal6(struct mv_host_priv *hpriv, int idx,
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hpriv->signal[idx].pre = tmp & 0xe0; /* bits 7:5 */
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}
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static void mv_enable_leds6(struct mv_host_priv *hpriv, void __iomem *mmio)
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static void mv6_enable_leds(struct mv_host_priv *hpriv, void __iomem *mmio)
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{
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if (hpriv->hp_flags & MV_HP_ERRATA_60X1A1)
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writel(0x00020060, mmio + MV_GPIO_PORT_CTL);
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else if (hpriv->hp_flags & MV_HP_ERRATA_60X1B0)
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writel(0x00000060, mmio + MV_GPIO_PORT_CTL);
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writel(0x00000060, mmio + MV_GPIO_PORT_CTL);
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}
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static void mv_phy_errata6(struct ata_port *ap)
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static void mv6_phy_errata(struct ata_port *ap)
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{
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struct mv_host_priv *hpriv = ap->host_set->private_data;
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u32 hp_flags = hpriv->hp_flags;
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void __iomem *port_mmio = mv_ap_base(ap);
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int fix_phy_mode2 =
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hp_flags & (MV_HP_ERRATA_60X1B2 | MV_HP_ERRATA_60X1C0);
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int fix_phy_mode4 =
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hp_flags & (MV_HP_ERRATA_60X1A1 | MV_HP_ERRATA_60X1B0);
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u32 m2;
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hp_flags & (MV_HP_ERRATA_60X1B2 | MV_HP_ERRATA_60X1C0);
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u32 m2, tmp;
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if (fix_phy_mode2) {
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m2 = readl(port_mmio + PHY_MODE2);
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m2 &= ~(1 << 16);
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m2 |= (1 << 31);
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writel(m2, port_mmio + PHY_MODE2);
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udelay(200);
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m2 = readl(port_mmio + PHY_MODE2);
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m2 &= ~((1 << 16) | (1 << 31));
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writel(m2, port_mmio + PHY_MODE2);
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udelay(200);
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}
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/* who knows what this magic does */
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tmp = readl(port_mmio + PHY_MODE3);
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tmp &= ~0x7F800000;
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tmp |= 0x2A800000;
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writel(tmp, port_mmio + PHY_MODE3);
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if (fix_phy_mode4) {
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u32 tmp, m4;
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u32 m4;
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m4 = readl(port_mmio + PHY_MODE4);
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tmp = readl(port_mmio + 0x310);
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if (hp_flags & MV_HP_ERRATA_60X1B2)
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tmp = readl(port_mmio + 0x310);
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m4 = (m4 & ~(1 << 1)) | (1 << 0);
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writel(m4, port_mmio + PHY_MODE4);
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writel(tmp, port_mmio + 0x310);
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if (hp_flags & MV_HP_ERRATA_60X1B2)
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writel(tmp, port_mmio + 0x310);
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}
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/* Revert values of pre-emphasis and signal amps to the saved ones */
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@ -1323,20 +1374,11 @@ static void mv_phy_errata6(struct ata_port *ap)
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m2 &= ~MV_M2_PREAMP_MASK;
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m2 |= hpriv->signal[ap->port_no].amps;
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m2 |= hpriv->signal[ap->port_no].pre;
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m2 &= ~(1 << 16);
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writel(m2, port_mmio + PHY_MODE2);
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}
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static void mv_phy_errata(struct ata_port *ap)
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{
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struct mv_host_priv *hpriv = ap->host_set->private_data;
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if (IS_50XX(hpriv))
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mv_phy_errata5(ap);
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else
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mv_phy_errata6(ap);
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}
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/**
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* mv_phy_reset - Perform eDMA reset followed by COMRESET
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* @ap: ATA channel to manipulate
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@ -1376,7 +1418,7 @@ static void mv_phy_reset(struct ata_port *ap)
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*/
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writelfl(0, port_mmio + EDMA_CMD_OFS);
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mv_phy_errata(ap);
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hpriv->ops->phy_errata(ap);
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DPRINTK("S-regs after ATA_RST: SStat 0x%08x SErr 0x%08x "
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"SCtrl 0x%08x\n", mv_scr_read(ap, SCR_STATUS),
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@ -1521,15 +1563,7 @@ static void mv_port_init(struct ata_ioports *port, void __iomem *port_mmio)
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readl(port_mmio + EDMA_ERR_IRQ_MASK_OFS));
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}
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static void mv_enable_leds(struct mv_host_priv *hpriv, void __iomem *mmio)
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{
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if (IS_50XX(hpriv))
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mv_enable_leds5(hpriv, mmio);
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else
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mv_enable_leds6(hpriv, mmio);
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}
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static int mv_cfg_errata(struct pci_dev *pdev, struct mv_host_priv *hpriv,
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static int mv_chip_id(struct pci_dev *pdev, struct mv_host_priv *hpriv,
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unsigned int board_idx)
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{
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u8 rev_id;
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@ -1538,70 +1572,60 @@ static int mv_cfg_errata(struct pci_dev *pdev, struct mv_host_priv *hpriv,
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pci_read_config_byte(pdev, PCI_REVISION_ID, &rev_id);
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switch(board_idx) {
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case chip_504x:
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case chip_508x:
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case chip_5080:
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hpriv->ops = &mv5xxx_ops;
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hp_flags |= MV_HP_50XX;
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if (pdev->device == 0x5080) {
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switch (rev_id) {
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case 0x0:
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dev_printk(KERN_WARNING, &pdev->dev,
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"Applying B0 workarounds to unknown rev 0\n");
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/* fall through */
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case 0x1:
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hp_flags |= MV_HP_ERRATA_50XXB0;
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break;
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case 0x2:
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hp_flags |= MV_HP_ERRATA_50XXB1;
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break;
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case 0x3:
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hp_flags |= MV_HP_ERRATA_50XXB2;
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break;
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default:
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dev_printk(KERN_WARNING, &pdev->dev,
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"Applying B2 workarounds to future rev\n");
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hp_flags |= MV_HP_ERRATA_50XXB2;
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break;
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}
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} else {
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switch (rev_id) {
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case 0x0:
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hp_flags |= MV_HP_ERRATA_50XXB0;
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break;
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case 0x1:
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dev_printk(KERN_WARNING, &pdev->dev,
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"Applying B1 workarounds to unknown rev 1\n");
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/* fall through */
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case 0x2:
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hp_flags |= MV_HP_ERRATA_50XXB1;
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break;
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default:
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dev_printk(KERN_WARNING, &pdev->dev,
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"Applying B2 workarounds to future rev\n");
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/* fall through */
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case 0x3:
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hp_flags |= MV_HP_ERRATA_50XXB2;
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break;
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}
|
||||
switch (rev_id) {
|
||||
case 0x1:
|
||||
hp_flags |= MV_HP_ERRATA_50XXB0;
|
||||
break;
|
||||
case 0x3:
|
||||
hp_flags |= MV_HP_ERRATA_50XXB2;
|
||||
break;
|
||||
default:
|
||||
dev_printk(KERN_WARNING, &pdev->dev,
|
||||
"Applying 50XXB2 workarounds to unknown rev\n");
|
||||
hp_flags |= MV_HP_ERRATA_50XXB2;
|
||||
break;
|
||||
}
|
||||
break;
|
||||
|
||||
case chip_504x:
|
||||
case chip_508x:
|
||||
hpriv->ops = &mv5xxx_ops;
|
||||
hp_flags |= MV_HP_50XX;
|
||||
|
||||
switch (rev_id) {
|
||||
case 0x0:
|
||||
hp_flags |= MV_HP_ERRATA_50XXB0;
|
||||
break;
|
||||
case 0x3:
|
||||
hp_flags |= MV_HP_ERRATA_50XXB2;
|
||||
break;
|
||||
default:
|
||||
dev_printk(KERN_WARNING, &pdev->dev,
|
||||
"Applying B2 workarounds to unknown rev\n");
|
||||
hp_flags |= MV_HP_ERRATA_50XXB2;
|
||||
break;
|
||||
}
|
||||
break;
|
||||
|
||||
case chip_604x:
|
||||
case chip_608x:
|
||||
hpriv->ops = &mv6xxx_ops;
|
||||
|
||||
switch (rev_id) {
|
||||
case 0x0:
|
||||
dev_printk(KERN_WARNING, &pdev->dev,
|
||||
"Applying A1 workarounds to unknown rev 0\n");
|
||||
/* fall through */
|
||||
case 0x1:
|
||||
hp_flags |= MV_HP_ERRATA_60X1A1;
|
||||
case 0x7:
|
||||
hp_flags |= MV_HP_ERRATA_60X1B2;
|
||||
break;
|
||||
case 0x9:
|
||||
hp_flags |= MV_HP_ERRATA_60X1C0;
|
||||
break;
|
||||
default:
|
||||
dev_printk(KERN_WARNING, &pdev->dev,
|
||||
"Applying B0 workarounds to future rev\n");
|
||||
/* fall through */
|
||||
case 0x2:
|
||||
hp_flags |= MV_HP_ERRATA_60X1B0;
|
||||
"Applying B2 workarounds to unknown rev\n");
|
||||
hp_flags |= MV_HP_ERRATA_60X1B2;
|
||||
break;
|
||||
}
|
||||
break;
|
||||
|
@ -1617,7 +1641,7 @@ static int mv_cfg_errata(struct pci_dev *pdev, struct mv_host_priv *hpriv,
|
|||
}
|
||||
|
||||
/**
|
||||
* mv_host_init - Perform some early initialization of the host.
|
||||
* mv_init_host - Perform some early initialization of the host.
|
||||
* @pdev: host PCI device
|
||||
* @probe_ent: early data struct representing the host
|
||||
*
|
||||
|
@ -1627,7 +1651,7 @@ static int mv_cfg_errata(struct pci_dev *pdev, struct mv_host_priv *hpriv,
|
|||
* LOCKING:
|
||||
* Inherited from caller.
|
||||
*/
|
||||
static int mv_host_init(struct pci_dev *pdev, struct ata_probe_ent *probe_ent,
|
||||
static int mv_init_host(struct pci_dev *pdev, struct ata_probe_ent *probe_ent,
|
||||
unsigned int board_idx)
|
||||
{
|
||||
int rc = 0, n_hc, port, hc;
|
||||
|
@ -1635,28 +1659,24 @@ static int mv_host_init(struct pci_dev *pdev, struct ata_probe_ent *probe_ent,
|
|||
void __iomem *port_mmio;
|
||||
struct mv_host_priv *hpriv = probe_ent->private_data;
|
||||
|
||||
rc = mv_cfg_errata(pdev, hpriv, board_idx);
|
||||
/* global interrupt mask */
|
||||
writel(0, mmio + HC_MAIN_IRQ_MASK_OFS);
|
||||
|
||||
rc = mv_chip_id(pdev, hpriv, board_idx);
|
||||
if (rc)
|
||||
goto done;
|
||||
|
||||
n_hc = mv_get_hc_count(probe_ent->host_flags);
|
||||
probe_ent->n_ports = MV_PORTS_PER_HC * n_hc;
|
||||
|
||||
if (IS_50XX(hpriv)) {
|
||||
for (port = 0; port < probe_ent->n_ports; port++)
|
||||
mv_cfg_signal5(hpriv, port, mmio);
|
||||
} else {
|
||||
for (port = 0; port < probe_ent->n_ports; port++)
|
||||
mv_cfg_signal6(hpriv, port, mmio);
|
||||
}
|
||||
for (port = 0; port < probe_ent->n_ports; port++)
|
||||
hpriv->ops->read_preamp(hpriv, port, mmio);
|
||||
|
||||
if ((MV_FLAG_GLBL_SFT_RST & probe_ent->host_flags) &&
|
||||
mv_global_soft_reset(probe_ent->mmio_base)) {
|
||||
rc = 1;
|
||||
rc = hpriv->ops->reset_hc(hpriv, mmio);
|
||||
if (rc)
|
||||
goto done;
|
||||
}
|
||||
|
||||
mv_enable_leds(hpriv, mmio);
|
||||
hpriv->ops->enable_leds(hpriv, mmio);
|
||||
|
||||
for (port = 0; port < probe_ent->n_ports; port++) {
|
||||
port_mmio = mv_port_base(mmio, port);
|
||||
|
@ -1794,7 +1814,7 @@ static int mv_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
|
|||
probe_ent->private_data = hpriv;
|
||||
|
||||
/* initialize adapter */
|
||||
rc = mv_host_init(pdev, probe_ent, board_idx);
|
||||
rc = mv_init_host(pdev, probe_ent, board_idx);
|
||||
if (rc) {
|
||||
goto err_out_hpriv;
|
||||
}
|
||||
|
|
Loading…
Reference in a new issue