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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
sata_mv more cosmetic changes
More cosmetic changes; no code changes. -- try and improve consistency of naming. -- add missing _OFS to tails of register offset definitions. -- rename mv_setup_ifctl() to mv_setup_ifcfg(), since that's what it really does. -- remove/move some dead comments Signed-off-by: Mark Lord <mlord@pobox.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
This commit is contained in:
parent
07ab85de4d
commit
8e7decdb8b
1 changed files with 63 additions and 59 deletions
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@ -91,9 +91,9 @@ enum {
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MV_IRQ_COAL_TIME_THRESHOLD = (MV_IRQ_COAL_REG_BASE + 0xd0),
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MV_SATAHC0_REG_BASE = 0x20000,
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MV_FLASH_CTL = 0x1046c,
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MV_GPIO_PORT_CTL = 0x104f0,
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MV_RESET_CFG = 0x180d8,
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MV_FLASH_CTL_OFS = 0x1046c,
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MV_GPIO_PORT_CTL_OFS = 0x104f0,
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MV_RESET_CFG_OFS = 0x180d8,
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MV_PCI_REG_SZ = MV_MAJOR_REG_AREA_SZ,
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MV_SATAHC_REG_SZ = MV_MAJOR_REG_AREA_SZ,
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@ -147,18 +147,21 @@ enum {
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/* PCI interface registers */
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PCI_COMMAND_OFS = 0xc00,
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PCI_COMMAND_MRDTRIG = (1 << 7), /* PCI Master Read Trigger */
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PCI_MAIN_CMD_STS_OFS = 0xd30,
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STOP_PCI_MASTER = (1 << 2),
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PCI_MASTER_EMPTY = (1 << 3),
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GLOB_SFT_RST = (1 << 4),
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MV_PCI_MODE = 0xd00,
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MV_PCI_MODE_OFS = 0xd00,
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MV_PCI_MODE_MASK = 0x30,
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MV_PCI_EXP_ROM_BAR_CTL = 0xd2c,
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MV_PCI_DISC_TIMER = 0xd04,
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MV_PCI_MSI_TRIGGER = 0xc38,
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MV_PCI_SERR_MASK = 0xc28,
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MV_PCI_XBAR_TMOUT = 0x1d04,
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MV_PCI_XBAR_TMOUT_OFS = 0x1d04,
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MV_PCI_ERR_LOW_ADDRESS = 0x1d40,
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MV_PCI_ERR_HIGH_ADDRESS = 0x1d44,
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MV_PCI_ERR_ATTRIBUTE = 0x1d48,
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@ -225,16 +228,18 @@ enum {
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PHY_MODE4 = 0x314,
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PHY_MODE2 = 0x330,
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SATA_IFCTL_OFS = 0x344,
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SATA_TESTCTL_OFS = 0x348,
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SATA_IFSTAT_OFS = 0x34c,
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VENDOR_UNIQUE_FIS_OFS = 0x35c,
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FIS_CFG_OFS = 0x360,
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FIS_CFG_SINGLE_SYNC = (1 << 16), /* SYNC on DMA activation */
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FISCFG_OFS = 0x360,
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FISCFG_WAIT_DEV_ERR = (1 << 8), /* wait for host on DevErr */
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FISCFG_SINGLE_SYNC = (1 << 16), /* SYNC on DMA activation */
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MV5_PHY_MODE = 0x74,
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MV5_LT_MODE = 0x30,
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MV5_PHY_CTL = 0x0C,
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SATA_INTERFACE_CFG = 0x050,
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MV5_LTMODE_OFS = 0x30,
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MV5_PHY_CTL_OFS = 0x0C,
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SATA_INTERFACE_CFG_OFS = 0x050,
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MV_M2_PREAMP_MASK = 0x7e0,
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@ -332,10 +337,16 @@ enum {
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EDMA_CMD_OFS = 0x28, /* EDMA command register */
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EDMA_EN = (1 << 0), /* enable EDMA */
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EDMA_DS = (1 << 1), /* disable EDMA; self-negated */
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ATA_RST = (1 << 2), /* reset trans/link/phy */
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EDMA_RESET = (1 << 2), /* reset eng/trans/link/phy */
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EDMA_IORDY_TMOUT = 0x34,
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EDMA_ARB_CFG = 0x38,
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EDMA_STATUS_OFS = 0x30, /* EDMA engine status */
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EDMA_STATUS_CACHE_EMPTY = (1 << 6), /* GenIIe command cache empty */
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EDMA_STATUS_IDLE = (1 << 7), /* GenIIe EDMA enabled/idle */
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EDMA_IORDY_TMOUT_OFS = 0x34,
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EDMA_ARB_CFG_OFS = 0x38,
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EDMA_HALTCOND_OFS = 0x60, /* GenIIe halt conditions */
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GEN_II_NCQ_MAX_SECTORS = 256, /* max sects/io on Gen2 w/NCQ */
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@ -359,6 +370,7 @@ enum {
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#define IS_GEN_I(hpriv) ((hpriv)->hp_flags & MV_HP_GEN_I)
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#define IS_GEN_II(hpriv) ((hpriv)->hp_flags & MV_HP_GEN_II)
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#define IS_GEN_IIE(hpriv) ((hpriv)->hp_flags & MV_HP_GEN_IIE)
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#define IS_PCIE(hpriv) ((hpriv)->hp_flags & MV_HP_PCIE)
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#define HAS_PCI(host) (!((host)->ports[0]->flags & MV_FLAG_SOC))
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#define WINDOW_CTRL(i) (0x20030 + ((i) << 4))
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@ -1059,22 +1071,22 @@ static void mv6_dev_config(struct ata_device *adev)
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static void mv_config_fbs(void __iomem *port_mmio, int enable_fbs)
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{
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u32 old_fcfg, new_fcfg, old_ltmode, new_ltmode;
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u32 old_fiscfg, new_fiscfg, old_ltmode, new_ltmode;
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/*
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* Various bit settings required for operation
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* in FIS-based switching (fbs) mode on GenIIe:
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*/
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old_fcfg = readl(port_mmio + FIS_CFG_OFS);
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old_fiscfg = readl(port_mmio + FISCFG_OFS);
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old_ltmode = readl(port_mmio + LTMODE_OFS);
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if (enable_fbs) {
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new_fcfg = old_fcfg | FIS_CFG_SINGLE_SYNC;
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new_fiscfg = old_fiscfg | FISCFG_SINGLE_SYNC;
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new_ltmode = old_ltmode | LTMODE_BIT8;
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} else { /* disable fbs */
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new_fcfg = old_fcfg & ~FIS_CFG_SINGLE_SYNC;
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new_fiscfg = old_fiscfg & ~FISCFG_SINGLE_SYNC;
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new_ltmode = old_ltmode & ~LTMODE_BIT8;
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}
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if (new_fcfg != old_fcfg)
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writelfl(new_fcfg, port_mmio + FIS_CFG_OFS);
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if (new_fiscfg != old_fiscfg)
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writelfl(new_fiscfg, port_mmio + FISCFG_OFS);
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if (new_ltmode != old_ltmode)
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writelfl(new_ltmode, port_mmio + LTMODE_OFS);
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}
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@ -1894,7 +1906,7 @@ static void mv5_reset_bus(struct ata_host *host, void __iomem *mmio)
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static void mv5_reset_flash(struct mv_host_priv *hpriv, void __iomem *mmio)
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{
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writel(0x0fcfffff, mmio + MV_FLASH_CTL);
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writel(0x0fcfffff, mmio + MV_FLASH_CTL_OFS);
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}
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static void mv5_read_preamp(struct mv_host_priv *hpriv, int idx,
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@ -1913,7 +1925,7 @@ static void mv5_enable_leds(struct mv_host_priv *hpriv, void __iomem *mmio)
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{
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u32 tmp;
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writel(0, mmio + MV_GPIO_PORT_CTL);
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writel(0, mmio + MV_GPIO_PORT_CTL_OFS);
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/* FIXME: handle MV_HP_ERRATA_50XXB2 errata */
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@ -1931,14 +1943,14 @@ static void mv5_phy_errata(struct mv_host_priv *hpriv, void __iomem *mmio,
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int fix_apm_sq = (hpriv->hp_flags & MV_HP_ERRATA_50XXB0);
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if (fix_apm_sq) {
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tmp = readl(phy_mmio + MV5_LT_MODE);
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tmp = readl(phy_mmio + MV5_LTMODE_OFS);
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tmp |= (1 << 19);
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writel(tmp, phy_mmio + MV5_LT_MODE);
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writel(tmp, phy_mmio + MV5_LTMODE_OFS);
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tmp = readl(phy_mmio + MV5_PHY_CTL);
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tmp = readl(phy_mmio + MV5_PHY_CTL_OFS);
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tmp &= ~0x3;
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tmp |= 0x1;
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writel(tmp, phy_mmio + MV5_PHY_CTL);
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writel(tmp, phy_mmio + MV5_PHY_CTL_OFS);
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}
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tmp = readl(phy_mmio + MV5_PHY_MODE);
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@ -1956,11 +1968,6 @@ static void mv5_reset_hc_port(struct mv_host_priv *hpriv, void __iomem *mmio,
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{
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void __iomem *port_mmio = mv_port_base(mmio, port);
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/*
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* The datasheet warns against setting ATA_RST when EDMA is active
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* (but doesn't say what the problem might be). So we first try
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* to disable the EDMA engine before doing the ATA_RST operation.
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*/
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mv_reset_channel(hpriv, mmio, port);
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ZERO(0x028); /* command */
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@ -1975,7 +1982,7 @@ static void mv5_reset_hc_port(struct mv_host_priv *hpriv, void __iomem *mmio,
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ZERO(0x024); /* respq outp */
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ZERO(0x020); /* respq inp */
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ZERO(0x02c); /* test control */
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writel(0xbc, port_mmio + EDMA_IORDY_TMOUT);
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writel(0xbc, port_mmio + EDMA_IORDY_TMOUT_OFS);
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}
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#undef ZERO
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@ -2021,13 +2028,13 @@ static void mv_reset_pci_bus(struct ata_host *host, void __iomem *mmio)
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struct mv_host_priv *hpriv = host->private_data;
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u32 tmp;
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tmp = readl(mmio + MV_PCI_MODE);
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tmp = readl(mmio + MV_PCI_MODE_OFS);
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tmp &= 0xff00ffff;
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writel(tmp, mmio + MV_PCI_MODE);
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writel(tmp, mmio + MV_PCI_MODE_OFS);
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ZERO(MV_PCI_DISC_TIMER);
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ZERO(MV_PCI_MSI_TRIGGER);
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writel(0x000100ff, mmio + MV_PCI_XBAR_TMOUT);
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writel(0x000100ff, mmio + MV_PCI_XBAR_TMOUT_OFS);
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ZERO(PCI_HC_MAIN_IRQ_MASK_OFS);
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ZERO(MV_PCI_SERR_MASK);
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ZERO(hpriv->irq_cause_ofs);
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@ -2045,10 +2052,10 @@ static void mv6_reset_flash(struct mv_host_priv *hpriv, void __iomem *mmio)
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mv5_reset_flash(hpriv, mmio);
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tmp = readl(mmio + MV_GPIO_PORT_CTL);
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tmp = readl(mmio + MV_GPIO_PORT_CTL_OFS);
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tmp &= 0x3;
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tmp |= (1 << 5) | (1 << 6);
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writel(tmp, mmio + MV_GPIO_PORT_CTL);
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writel(tmp, mmio + MV_GPIO_PORT_CTL_OFS);
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}
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/**
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@ -2121,7 +2128,7 @@ static void mv6_read_preamp(struct mv_host_priv *hpriv, int idx,
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void __iomem *port_mmio;
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u32 tmp;
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tmp = readl(mmio + MV_RESET_CFG);
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tmp = readl(mmio + MV_RESET_CFG_OFS);
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if ((tmp & (1 << 0)) == 0) {
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hpriv->signal[idx].amps = 0x7 << 8;
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hpriv->signal[idx].pre = 0x1 << 5;
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@ -2137,7 +2144,7 @@ static void mv6_read_preamp(struct mv_host_priv *hpriv, int idx,
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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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writel(0x00000060, mmio + MV_GPIO_PORT_CTL);
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writel(0x00000060, mmio + MV_GPIO_PORT_CTL_OFS);
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}
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static void mv6_phy_errata(struct mv_host_priv *hpriv, void __iomem *mmio,
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{
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void __iomem *port_mmio = mv_port_base(mmio, port);
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/*
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* The datasheet warns against setting ATA_RST when EDMA is active
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* (but doesn't say what the problem might be). So we first try
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* to disable the EDMA engine before doing the ATA_RST operation.
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*/
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mv_reset_channel(hpriv, mmio, port);
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ZERO(0x028); /* command */
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@ -2254,7 +2256,7 @@ static void mv_soc_reset_hc_port(struct mv_host_priv *hpriv,
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ZERO(0x024); /* respq outp */
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ZERO(0x020); /* respq inp */
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ZERO(0x02c); /* test control */
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writel(0xbc, port_mmio + EDMA_IORDY_TMOUT);
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writel(0xbc, port_mmio + EDMA_IORDY_TMOUT_OFS);
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}
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#undef ZERO
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@ -2297,38 +2299,39 @@ static void mv_soc_reset_bus(struct ata_host *host, void __iomem *mmio)
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return;
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}
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static void mv_setup_ifctl(void __iomem *port_mmio, int want_gen2i)
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static void mv_setup_ifcfg(void __iomem *port_mmio, int want_gen2i)
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{
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u32 ifctl = readl(port_mmio + SATA_INTERFACE_CFG);
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u32 ifcfg = readl(port_mmio + SATA_INTERFACE_CFG_OFS);
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ifctl = (ifctl & 0xf7f) | 0x9b1000; /* from chip spec */
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ifcfg = (ifcfg & 0xf7f) | 0x9b1000; /* from chip spec */
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if (want_gen2i)
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ifctl |= (1 << 7); /* enable gen2i speed */
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writelfl(ifctl, port_mmio + SATA_INTERFACE_CFG);
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ifcfg |= (1 << 7); /* enable gen2i speed */
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writelfl(ifcfg, port_mmio + SATA_INTERFACE_CFG_OFS);
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}
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/*
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* Caller must ensure that EDMA is not active,
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* by first doing mv_stop_edma() where needed.
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*/
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static void mv_reset_channel(struct mv_host_priv *hpriv, void __iomem *mmio,
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unsigned int port_no)
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{
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void __iomem *port_mmio = mv_port_base(mmio, port_no);
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/*
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* The datasheet warns against setting EDMA_RESET when EDMA is active
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* (but doesn't say what the problem might be). So we first try
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* to disable the EDMA engine before doing the EDMA_RESET operation.
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*/
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mv_stop_edma_engine(port_mmio);
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writelfl(ATA_RST, port_mmio + EDMA_CMD_OFS);
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writelfl(EDMA_RESET, port_mmio + EDMA_CMD_OFS);
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if (!IS_GEN_I(hpriv)) {
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/* Enable 3.0gb/s link speed */
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mv_setup_ifctl(port_mmio, 1);
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/* Enable 3.0gb/s link speed: this survives EDMA_RESET */
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mv_setup_ifcfg(port_mmio, 1);
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}
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/*
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* Strobing ATA_RST here causes a hard reset of the SATA transport,
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* Strobing EDMA_RESET here causes a hard reset of the SATA transport,
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* link, and physical layers. It resets all SATA interface registers
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* (except for SATA_INTERFACE_CFG), and issues a COMRESET to the dev.
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*/
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writelfl(ATA_RST, port_mmio + EDMA_CMD_OFS);
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writelfl(EDMA_RESET, port_mmio + EDMA_CMD_OFS);
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udelay(25); /* allow reset propagation */
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writelfl(0, port_mmio + EDMA_CMD_OFS);
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sata_scr_read(link, SCR_STATUS, &sstatus);
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if (!IS_GEN_I(hpriv) && ++attempts >= 5 && sstatus == 0x121) {
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/* Force 1.5gb/s link speed and try again */
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mv_setup_ifctl(mv_ap_base(ap), 0);
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mv_setup_ifcfg(mv_ap_base(ap), 0);
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if (time_after(jiffies + HZ, deadline))
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extra = HZ; /* only extend it once, max */
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}
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" and avoid the final two gigabytes on"
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" all RocketRAID BIOS initialized drives.\n");
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}
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/* drop through */
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case chip_6042:
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hpriv->ops = &mv6xxx_ops;
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hp_flags |= MV_HP_GEN_IIE;
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