diff options
Diffstat (limited to 'drivers/ata/sata_mv.c')
| -rw-r--r-- | drivers/ata/sata_mv.c | 497 |
1 files changed, 282 insertions, 215 deletions
diff --git a/drivers/ata/sata_mv.c b/drivers/ata/sata_mv.c index a377226..37ae5dc 100644 --- a/drivers/ata/sata_mv.c +++ b/drivers/ata/sata_mv.c @@ -28,10 +28,6 @@ /* * sata_mv TODO list: * - * --> More errata workarounds for PCI-X. - * - * --> Complete a full errata audit for all chipsets to identify others. - * * --> Develop a low-power-consumption strategy, and implement it. * * --> Add sysfs attributes for per-chip / per-HC IRQ coalescing thresholds. @@ -44,6 +40,15 @@ * connect two SATA ports. */ +/* + * 80x1-B2 errata PCI#11: + * + * Users of the 6041/6081 Rev.B2 chips (current is C0) + * should be careful to insert those cards only onto PCI-X bus #0, + * and only in device slots 0..7, not higher. The chips may not + * work correctly otherwise (note: this is a pretty rare condition). + */ + #include <linux/kernel.h> #include <linux/module.h> #include <linux/pci.h> @@ -64,7 +69,7 @@ #include <linux/libata.h> #define DRV_NAME "sata_mv" -#define DRV_VERSION "1.27" +#define DRV_VERSION "1.28" /* * module options @@ -109,23 +114,23 @@ enum { * Coalescing defers the interrupt until either the IO_THRESHOLD * (count of completed I/Os) is met, or the TIME_THRESHOLD is met. */ - MV_COAL_REG_BASE = 0x18000, - MV_IRQ_COAL_CAUSE = (MV_COAL_REG_BASE + 0x08), + COAL_REG_BASE = 0x18000, + IRQ_COAL_CAUSE = (COAL_REG_BASE + 0x08), ALL_PORTS_COAL_IRQ = (1 << 4), /* all ports irq event */ - MV_IRQ_COAL_IO_THRESHOLD = (MV_COAL_REG_BASE + 0xcc), - MV_IRQ_COAL_TIME_THRESHOLD = (MV_COAL_REG_BASE + 0xd0), + IRQ_COAL_IO_THRESHOLD = (COAL_REG_BASE + 0xcc), + IRQ_COAL_TIME_THRESHOLD = (COAL_REG_BASE + 0xd0), /* * Registers for the (unused here) transaction coalescing feature: */ - MV_TRAN_COAL_CAUSE_LO = (MV_COAL_REG_BASE + 0x88), - MV_TRAN_COAL_CAUSE_HI = (MV_COAL_REG_BASE + 0x8c), + TRAN_COAL_CAUSE_LO = (COAL_REG_BASE + 0x88), + TRAN_COAL_CAUSE_HI = (COAL_REG_BASE + 0x8c), - MV_SATAHC0_REG_BASE = 0x20000, - MV_FLASH_CTL_OFS = 0x1046c, - MV_GPIO_PORT_CTL_OFS = 0x104f0, - MV_RESET_CFG_OFS = 0x180d8, + SATAHC0_REG_BASE = 0x20000, + FLASH_CTL = 0x1046c, + GPIO_PORT_CTL = 0x104f0, + RESET_CFG = 0x180d8, MV_PCI_REG_SZ = MV_MAJOR_REG_AREA_SZ, MV_SATAHC_REG_SZ = MV_MAJOR_REG_AREA_SZ, @@ -180,40 +185,41 @@ enum { /* PCI interface registers */ - PCI_COMMAND_OFS = 0xc00, - PCI_COMMAND_MRDTRIG = (1 << 7), /* PCI Master Read Trigger */ + MV_PCI_COMMAND = 0xc00, + MV_PCI_COMMAND_MWRCOM = (1 << 4), /* PCI Master Write Combining */ + MV_PCI_COMMAND_MRDTRIG = (1 << 7), /* PCI Master Read Trigger */ - PCI_MAIN_CMD_STS_OFS = 0xd30, + PCI_MAIN_CMD_STS = 0xd30, STOP_PCI_MASTER = (1 << 2), PCI_MASTER_EMPTY = (1 << 3), GLOB_SFT_RST = (1 << 4), - MV_PCI_MODE_OFS = 0xd00, + MV_PCI_MODE = 0xd00, MV_PCI_MODE_MASK = 0x30, MV_PCI_EXP_ROM_BAR_CTL = 0xd2c, MV_PCI_DISC_TIMER = 0xd04, MV_PCI_MSI_TRIGGER = 0xc38, MV_PCI_SERR_MASK = 0xc28, - MV_PCI_XBAR_TMOUT_OFS = 0x1d04, + MV_PCI_XBAR_TMOUT = 0x1d04, MV_PCI_ERR_LOW_ADDRESS = 0x1d40, MV_PCI_ERR_HIGH_ADDRESS = 0x1d44, MV_PCI_ERR_ATTRIBUTE = 0x1d48, MV_PCI_ERR_COMMAND = 0x1d50, - PCI_IRQ_CAUSE_OFS = 0x1d58, - PCI_IRQ_MASK_OFS = 0x1d5c, + PCI_IRQ_CAUSE = 0x1d58, + PCI_IRQ_MASK = 0x1d5c, PCI_UNMASK_ALL_IRQS = 0x7fffff, /* bits 22-0 */ - PCIE_IRQ_CAUSE_OFS = 0x1900, - PCIE_IRQ_MASK_OFS = 0x1910, + PCIE_IRQ_CAUSE = 0x1900, + PCIE_IRQ_MASK = 0x1910, PCIE_UNMASK_ALL_IRQS = 0x40a, /* assorted bits */ /* Host Controller Main Interrupt Cause/Mask registers (1 per-chip) */ - PCI_HC_MAIN_IRQ_CAUSE_OFS = 0x1d60, - PCI_HC_MAIN_IRQ_MASK_OFS = 0x1d64, - SOC_HC_MAIN_IRQ_CAUSE_OFS = 0x20020, - SOC_HC_MAIN_IRQ_MASK_OFS = 0x20024, + PCI_HC_MAIN_IRQ_CAUSE = 0x1d60, + PCI_HC_MAIN_IRQ_MASK = 0x1d64, + SOC_HC_MAIN_IRQ_CAUSE = 0x20020, + SOC_HC_MAIN_IRQ_MASK = 0x20024, ERR_IRQ = (1 << 0), /* shift by (2 * port #) */ DONE_IRQ = (1 << 1), /* shift by (2 * port #) */ HC0_IRQ_PEND = 0x1ff, /* bits 0-8 = HC0's ports */ @@ -234,9 +240,9 @@ enum { HC_MAIN_RSVD_SOC = (0x3fffffb << 6), /* bits 31-9, 7-6 */ /* SATAHC registers */ - HC_CFG_OFS = 0, + HC_CFG = 0x00, - HC_IRQ_CAUSE_OFS = 0x14, + HC_IRQ_CAUSE = 0x14, DMA_IRQ = (1 << 0), /* shift by port # */ HC_COAL_IRQ = (1 << 4), /* IRQ coalescing */ DEV_IRQ = (1 << 8), /* shift by port # */ @@ -248,53 +254,54 @@ enum { * Coalescing defers the interrupt until either the IO_THRESHOLD * (count of completed I/Os) is met, or the TIME_THRESHOLD is met. */ - HC_IRQ_COAL_IO_THRESHOLD_OFS = 0x000c, - HC_IRQ_COAL_TIME_THRESHOLD_OFS = 0x0010, + HC_IRQ_COAL_IO_THRESHOLD = 0x000c, + HC_IRQ_COAL_TIME_THRESHOLD = 0x0010, - SOC_LED_CTRL_OFS = 0x2c, + SOC_LED_CTRL = 0x2c, SOC_LED_CTRL_BLINK = (1 << 0), /* Active LED blink */ SOC_LED_CTRL_ACT_PRESENCE = (1 << 2), /* Multiplex dev presence */ /* with dev activity LED */ /* Shadow block registers */ - SHD_BLK_OFS = 0x100, - SHD_CTL_AST_OFS = 0x20, /* ofs from SHD_BLK_OFS */ + SHD_BLK = 0x100, + SHD_CTL_AST = 0x20, /* ofs from SHD_BLK */ /* SATA registers */ - SATA_STATUS_OFS = 0x300, /* ctrl, err regs follow status */ - SATA_ACTIVE_OFS = 0x350, - SATA_FIS_IRQ_CAUSE_OFS = 0x364, - SATA_FIS_IRQ_AN = (1 << 9), /* async notification */ + SATA_STATUS = 0x300, /* ctrl, err regs follow status */ + SATA_ACTIVE = 0x350, + FIS_IRQ_CAUSE = 0x364, + FIS_IRQ_CAUSE_AN = (1 << 9), /* async notification */ - LTMODE_OFS = 0x30c, + LTMODE = 0x30c, /* requires read-after-write */ LTMODE_BIT8 = (1 << 8), /* unknown, but necessary */ + PHY_MODE2 = 0x330, PHY_MODE3 = 0x310, - PHY_MODE4 = 0x314, + + PHY_MODE4 = 0x314, /* requires read-after-write */ PHY_MODE4_CFG_MASK = 0x00000003, /* phy internal config field */ PHY_MODE4_CFG_VALUE = 0x00000001, /* phy internal config field */ PHY_MODE4_RSVD_ZEROS = 0x5de3fffa, /* Gen2e always write zeros */ PHY_MODE4_RSVD_ONES = 0x00000005, /* Gen2e always write ones */ - PHY_MODE2 = 0x330, - SATA_IFCTL_OFS = 0x344, - SATA_TESTCTL_OFS = 0x348, - SATA_IFSTAT_OFS = 0x34c, - VENDOR_UNIQUE_FIS_OFS = 0x35c, + SATA_IFCTL = 0x344, + SATA_TESTCTL = 0x348, + SATA_IFSTAT = 0x34c, + VENDOR_UNIQUE_FIS = 0x35c, - FISCFG_OFS = 0x360, + FISCFG = 0x360, FISCFG_WAIT_DEV_ERR = (1 << 8), /* wait for host on DevErr */ FISCFG_SINGLE_SYNC = (1 << 16), /* SYNC on DMA activation */ MV5_PHY_MODE = 0x74, - MV5_LTMODE_OFS = 0x30, - MV5_PHY_CTL_OFS = 0x0C, - SATA_INTERFACE_CFG_OFS = 0x050, + MV5_LTMODE = 0x30, + MV5_PHY_CTL = 0x0C, + SATA_IFCFG = 0x050, MV_M2_PREAMP_MASK = 0x7e0, /* Port registers */ - EDMA_CFG_OFS = 0, + EDMA_CFG = 0, EDMA_CFG_Q_DEPTH = 0x1f, /* max device queue depth */ EDMA_CFG_NCQ = (1 << 5), /* for R/W FPDMA queued */ EDMA_CFG_NCQ_GO_ON_ERR = (1 << 14), /* continue on error */ @@ -303,8 +310,8 @@ enum { EDMA_CFG_EDMA_FBS = (1 << 16), /* EDMA FIS-Based Switching */ EDMA_CFG_FBS = (1 << 26), /* FIS-Based Switching */ - EDMA_ERR_IRQ_CAUSE_OFS = 0x8, - EDMA_ERR_IRQ_MASK_OFS = 0xc, + EDMA_ERR_IRQ_CAUSE = 0x8, + EDMA_ERR_IRQ_MASK = 0xc, EDMA_ERR_D_PAR = (1 << 0), /* UDMA data parity err */ EDMA_ERR_PRD_PAR = (1 << 1), /* UDMA PRD parity err */ EDMA_ERR_DEV = (1 << 2), /* device error */ @@ -373,36 +380,36 @@ enum { EDMA_ERR_INTRL_PAR | EDMA_ERR_IORDY, - EDMA_REQ_Q_BASE_HI_OFS = 0x10, - EDMA_REQ_Q_IN_PTR_OFS = 0x14, /* also contains BASE_LO */ + EDMA_REQ_Q_BASE_HI = 0x10, + EDMA_REQ_Q_IN_PTR = 0x14, /* also contains BASE_LO */ - EDMA_REQ_Q_OUT_PTR_OFS = 0x18, + EDMA_REQ_Q_OUT_PTR = 0x18, EDMA_REQ_Q_PTR_SHIFT = 5, - EDMA_RSP_Q_BASE_HI_OFS = 0x1c, - EDMA_RSP_Q_IN_PTR_OFS = 0x20, - EDMA_RSP_Q_OUT_PTR_OFS = 0x24, /* also contains BASE_LO */ + EDMA_RSP_Q_BASE_HI = 0x1c, + EDMA_RSP_Q_IN_PTR = 0x20, + EDMA_RSP_Q_OUT_PTR = 0x24, /* also contains BASE_LO */ EDMA_RSP_Q_PTR_SHIFT = 3, - EDMA_CMD_OFS = 0x28, /* EDMA command register */ + EDMA_CMD = 0x28, /* EDMA command register */ EDMA_EN = (1 << 0), /* enable EDMA */ EDMA_DS = (1 << 1), /* disable EDMA; self-negated */ EDMA_RESET = (1 << 2), /* reset eng/trans/link/phy */ - EDMA_STATUS_OFS = 0x30, /* EDMA engine status */ + EDMA_STATUS = 0x30, /* EDMA engine status */ EDMA_STATUS_CACHE_EMPTY = (1 << 6), /* GenIIe command cache empty */ EDMA_STATUS_IDLE = (1 << 7), /* GenIIe EDMA enabled/idle */ - EDMA_IORDY_TMOUT_OFS = 0x34, - EDMA_ARB_CFG_OFS = 0x38, + EDMA_IORDY_TMOUT = 0x34, + EDMA_ARB_CFG = 0x38, - EDMA_HALTCOND_OFS = 0x60, /* GenIIe halt conditions */ - EDMA_UNKNOWN_RSVD_OFS = 0x6C, /* GenIIe unknown/reserved */ + EDMA_HALTCOND = 0x60, /* GenIIe halt conditions */ + EDMA_UNKNOWN_RSVD = 0x6C, /* GenIIe unknown/reserved */ - BMDMA_CMD_OFS = 0x224, /* bmdma command register */ - BMDMA_STATUS_OFS = 0x228, /* bmdma status register */ - BMDMA_PRD_LOW_OFS = 0x22c, /* bmdma PRD addr 31:0 */ - BMDMA_PRD_HIGH_OFS = 0x230, /* bmdma PRD addr 63:32 */ + BMDMA_CMD = 0x224, /* bmdma command register */ + BMDMA_STATUS = 0x228, /* bmdma status register */ + BMDMA_PRD_LOW = 0x22c, /* bmdma PRD addr 31:0 */ + BMDMA_PRD_HIGH = 0x230, /* bmdma PRD addr 63:32 */ /* Host private flags (hp_flags) */ MV_HP_FLAG_MSI = (1 << 0), @@ -534,8 +541,8 @@ struct mv_host_priv { void __iomem *base; void __iomem *main_irq_cause_addr; void __iomem *main_irq_mask_addr; - u32 irq_cause_ofs; - u32 irq_mask_ofs; + u32 irq_cause_offset; + u32 irq_mask_offset; u32 unmask_all_irqs; /* * These consistent DMA memory pools give us guaranteed @@ -694,49 +701,49 @@ static struct ata_port_operations mv_iie_ops = { static const struct ata_port_info mv_port_info[] = { { /* chip_504x */ .flags = MV_GEN_I_FLAGS, - .pio_mask = 0x1f, /* pio0-4 */ + .pio_mask = ATA_PIO4, .udma_mask = ATA_UDMA6, .port_ops = &mv5_ops, }, { /* chip_508x */ .flags = MV_GEN_I_FLAGS | MV_FLAG_DUAL_HC, - .pio_mask = 0x1f, /* pio0-4 */ + .pio_mask = ATA_PIO4, .udma_mask = ATA_UDMA6, .port_ops = &mv5_ops, }, { /* chip_5080 */ .flags = MV_GEN_I_FLAGS | MV_FLAG_DUAL_HC, - .pio_mask = 0x1f, /* pio0-4 */ + .pio_mask = ATA_PIO4, .udma_mask = ATA_UDMA6, .port_ops = &mv5_ops, }, { /* chip_604x */ .flags = MV_GEN_II_FLAGS, - .pio_mask = 0x1f, /* pio0-4 */ + .pio_mask = ATA_PIO4, .udma_mask = ATA_UDMA6, .port_ops = &mv6_ops, }, { /* chip_608x */ .flags = MV_GEN_II_FLAGS | MV_FLAG_DUAL_HC, - .pio_mask = 0x1f, /* pio0-4 */ + .pio_mask = ATA_PIO4, .udma_mask = ATA_UDMA6, .port_ops = &mv6_ops, }, { /* chip_6042 */ .flags = MV_GEN_IIE_FLAGS, - .pio_mask = 0x1f, /* pio0-4 */ + .pio_mask = ATA_PIO4, .udma_mask = ATA_UDMA6, .port_ops = &mv_iie_ops, }, { /* chip_7042 */ .flags = MV_GEN_IIE_FLAGS, - .pio_mask = 0x1f, /* pio0-4 */ + .pio_mask = ATA_PIO4, .udma_mask = ATA_UDMA6, .port_ops = &mv_iie_ops, }, { /* chip_soc */ .flags = MV_GEN_IIE_FLAGS, - .pio_mask = 0x1f, /* pio0-4 */ + .pio_mask = ATA_PIO4, .udma_mask = ATA_UDMA6, .port_ops = &mv_iie_ops, }, @@ -840,7 +847,7 @@ static inline unsigned int mv_hardport_from_port(unsigned int port) static inline void __iomem *mv_hc_base(void __iomem *base, unsigned int hc) { - return (base + MV_SATAHC0_REG_BASE + (hc * MV_SATAHC_REG_SZ)); + return (base + SATAHC0_REG_BASE + (hc * MV_SATAHC_REG_SZ)); } static inline void __iomem *mv_hc_base_from_port(void __iomem *base, @@ -895,10 +902,10 @@ static void mv_save_cached_regs(struct ata_port *ap) void __iomem *port_mmio = mv_ap_base(ap); struct mv_port_priv *pp = ap->private_data; - pp->cached.fiscfg = readl(port_mmio + FISCFG_OFS); - pp->cached.ltmode = readl(port_mmio + LTMODE_OFS); - pp->cached.haltcond = readl(port_mmio + EDMA_HALTCOND_OFS); - pp->cached.unknown_rsvd = readl(port_mmio + EDMA_UNKNOWN_RSVD_OFS); + pp->cached.fiscfg = readl(port_mmio + FISCFG); + pp->cached.ltmode = readl(port_mmio + LTMODE); + pp->cached.haltcond = readl(port_mmio + EDMA_HALTCOND); + pp->cached.unknown_rsvd = readl(port_mmio + EDMA_UNKNOWN_RSVD); } /** @@ -913,8 +920,26 @@ static void mv_save_cached_regs(struct ata_port *ap) static inline void mv_write_cached_reg(void __iomem *addr, u32 *old, u32 new) { if (new != *old) { + unsigned long laddr; *old = new; - writel(new, addr); + /* + * Workaround for 88SX60x1-B2 FEr SATA#13: + * Read-after-write is needed to prevent generating 64-bit + * write cycles on the PCI bus for SATA interface registers + * at offsets ending in 0x4 or 0xc. + * + * Looks like a lot of fuss, but it avoids an unnecessary + * +1 usec read-after-write delay for unaffected registers. + */ + laddr = (long)addr & 0xffff; + if (laddr >= 0x300 && laddr <= 0x33c) { + laddr &= 0x000f; + if (laddr == 0x4 || laddr == 0xc) { + writelfl(new, addr); /* read after write */ + return; + } + } + writel(new, addr); /* unaffected by the errata */ } } @@ -931,10 +956,10 @@ static void mv_set_edma_ptrs(void __iomem *port_mmio, index = pp->req_idx << EDMA_REQ_Q_PTR_SHIFT; WARN_ON(pp->crqb_dma & 0x3ff); - writel((pp->crqb_dma >> 16) >> 16, port_mmio + EDMA_REQ_Q_BASE_HI_OFS); + writel((pp->crqb_dma >> 16) >> 16, port_mmio + EDMA_REQ_Q_BASE_HI); writelfl((pp->crqb_dma & EDMA_REQ_Q_BASE_LO_MASK) | index, - port_mmio + EDMA_REQ_Q_IN_PTR_OFS); - writelfl(index, port_mmio + EDMA_REQ_Q_OUT_PTR_OFS); + port_mmio + EDMA_REQ_Q_IN_PTR); + writelfl(index, port_mmio + EDMA_REQ_Q_OUT_PTR); /* * initialize response queue @@ -943,10 +968,10 @@ static void mv_set_edma_ptrs(void __iomem *port_mmio, index = pp->resp_idx << EDMA_RSP_Q_PTR_SHIFT; WARN_ON(pp->crpb_dma & 0xff); - writel((pp->crpb_dma >> 16) >> 16, port_mmio + EDMA_RSP_Q_BASE_HI_OFS); - writelfl(index, port_mmio + EDMA_RSP_Q_IN_PTR_OFS); + writel((pp->crpb_dma >> 16) >> 16, port_mmio + EDMA_RSP_Q_BASE_HI); + writelfl(index, port_mmio + EDMA_RSP_Q_IN_PTR); writelfl((pp->crpb_dma & EDMA_RSP_Q_BASE_LO_MASK) | index, - port_mmio + EDMA_RSP_Q_OUT_PTR_OFS); + port_mmio + EDMA_RSP_Q_OUT_PTR); } static void mv_write_main_irq_mask(u32 mask, struct mv_host_priv *hpriv) @@ -1004,15 +1029,15 @@ static void mv_clear_and_enable_port_irqs(struct ata_port *ap, u32 hc_irq_cause; /* clear EDMA event indicators, if any */ - writelfl(0, port_mmio + EDMA_ERR_IRQ_CAUSE_OFS); + writelfl(0, port_mmio + EDMA_ERR_IRQ_CAUSE); /* clear pending irq events */ hc_irq_cause = ~((DEV_IRQ | DMA_IRQ) << hardport); - writelfl(hc_irq_cause, hc_mmio + HC_IRQ_CAUSE_OFS); + writelfl(hc_irq_cause, hc_mmio + HC_IRQ_CAUSE); /* clear FIS IRQ Cause */ if (IS_GEN_IIE(hpriv)) - writelfl(0, port_mmio + SATA_FIS_IRQ_CAUSE_OFS); + writelfl(0, port_mmio + FIS_IRQ_CAUSE); mv_enable_port_irqs(ap, port_irqs); } @@ -1048,10 +1073,10 @@ static void mv_set_irq_coalescing(struct ata_host *host, * GEN_II/GEN_IIE with dual host controllers: * one set of global thresholds for the entire chip. */ - writel(clks, mmio + MV_IRQ_COAL_TIME_THRESHOLD); - writel(count, mmio + MV_IRQ_COAL_IO_THRESHOLD); + writel(clks, mmio + IRQ_COAL_TIME_THRESHOLD); + writel(count, mmio + IRQ_COAL_IO_THRESHOLD); /* clear leftover coal IRQ bit */ - writel(~ALL_PORTS_COAL_IRQ, mmio + MV_IRQ_COAL_CAUSE); + writel(~ALL_PORTS_COAL_IRQ, mmio + IRQ_COAL_CAUSE); if (count) coal_enable = ALL_PORTS_COAL_DONE; clks = count = 0; /* force clearing of regular regs below */ @@ -1061,16 +1086,16 @@ static void mv_set_irq_coalescing(struct ata_host *host, * All chips: independent thresholds for each HC on the chip. */ hc_mmio = mv_hc_base_from_port(mmio, 0); - writel(clks, hc_mmio + HC_IRQ_COAL_TIME_THRESHOLD_OFS); - writel(count, hc_mmio + HC_IRQ_COAL_IO_THRESHOLD_OFS); - writel(~HC_COAL_IRQ, hc_mmio + HC_IRQ_CAUSE_OFS); + writel(clks, hc_mmio + HC_IRQ_COAL_TIME_THRESHOLD); + writel(count, hc_mmio + HC_IRQ_COAL_IO_THRESHOLD); + writel(~HC_COAL_IRQ, hc_mmio + HC_IRQ_CAUSE); if (count) coal_enable |= PORTS_0_3_COAL_DONE; if (is_dual_hc) { hc_mmio = mv_hc_base_from_port(mmio, MV_PORTS_PER_HC); - writel(clks, hc_mmio + HC_IRQ_COAL_TIME_THRESHOLD_OFS); - writel(count, hc_mmio + HC_IRQ_COAL_IO_THRESHOLD_OFS); - writel(~HC_COAL_IRQ, hc_mmio + HC_IRQ_CAUSE_OFS); + writel(clks, hc_mmio + HC_IRQ_COAL_TIME_THRESHOLD); + writel(count, hc_mmio + HC_IRQ_COAL_IO_THRESHOLD); + writel(~HC_COAL_IRQ, hc_mmio + HC_IRQ_CAUSE); if (count) coal_enable |= PORTS_4_7_COAL_DONE; } @@ -1108,7 +1133,7 @@ static void mv_start_edma(struct ata_port *ap, void __iomem *port_mmio, mv_set_edma_ptrs(port_mmio, hpriv, pp); mv_clear_and_enable_port_irqs(ap, port_mmio, DONE_IRQ|ERR_IRQ); - writelfl(EDMA_EN, port_mmio + EDMA_CMD_OFS); + writelfl(EDMA_EN, port_mmio + EDMA_CMD); pp->pp_flags |= MV_PP_FLAG_EDMA_EN; } } @@ -1128,7 +1153,7 @@ static void mv_wait_for_edma_empty_idle(struct ata_port *ap) * as a rough guess at what even more drives might require. */ for (i = 0; i < timeout; ++i) { - u32 edma_stat = readl(port_mmio + EDMA_STATUS_OFS); + u32 edma_stat = readl(port_mmio + EDMA_STATUS); if ((edma_stat & empty_idle) == empty_idle) break; udelay(per_loop); @@ -1148,11 +1173,11 @@ static int mv_stop_edma_engine(void __iomem *port_mmio) int i; /* Disable eDMA. The disable bit auto clears. */ - writelfl(EDMA_DS, port_mmio + EDMA_CMD_OFS); + writelfl(EDMA_DS, port_mmio + EDMA_CMD); /* Wait for the chip to confirm eDMA is off. */ for (i = 10000; i > 0; i--) { - u32 reg = readl(port_mmio + EDMA_CMD_OFS); + u32 reg = readl(port_mmio + EDMA_CMD); if (!(reg & EDMA_EN)) return 0; udelay(10); @@ -1262,10 +1287,10 @@ static unsigned int mv_scr_offset(unsigned int sc_reg_in) case SCR_STATUS: case SCR_CONTROL: case SCR_ERROR: - ofs = SATA_STATUS_OFS + (sc_reg_in * sizeof(u32)); + ofs = SATA_STATUS + (sc_reg_in * sizeof(u32)); break; case SCR_ACTIVE: - ofs = SATA_ACTIVE_OFS; /* active is not with the others */ + ofs = SATA_ACTIVE; /* active is not with the others */ break; default: ofs = 0xffffffffU; @@ -1290,7 +1315,25 @@ static int mv_scr_write(struct ata_link *link, unsigned int sc_reg_in, u32 val) unsigned int ofs = mv_scr_offset(sc_reg_in); if (ofs != 0xffffffffU) { - writelfl(val, mv_ap_base(link->ap) + ofs); + void __iomem *addr = mv_ap_base(link->ap) + ofs; + if (sc_reg_in == SCR_CONTROL) { + /* + * Workaround for 88SX60x1 FEr SATA#26: + * + * COMRESETs have to take care not to accidently + * put the drive to sleep when writing SCR_CONTROL. + * Setting bits 12..15 prevents this problem. + * + * So if we see an outbound COMMRESET, set those bits. + * Ditto for the followup write that clears the reset. + * + * The proprietary driver does this for + * all chip versions, and so do we. + */ + if ((val & 0xf) == 1 || (readl(addr) & 0xf) == 1) + val |= 0xf000; + } + writelfl(val, addr); return 0; } else return -EINVAL; @@ -1368,9 +1411,9 @@ static void mv_config_fbs(struct ata_port *ap, int want_ncq, int want_fbs) } port_mmio = mv_ap_base(ap); - mv_write_cached_reg(port_mmio + FISCFG_OFS, old_fiscfg, fiscfg); - mv_write_cached_reg(port_mmio + LTMODE_OFS, old_ltmode, ltmode); - mv_write_cached_reg(port_mmio + EDMA_HALTCOND_OFS, old_haltcond, haltcond); + mv_write_cached_reg(port_mmio + FISCFG, old_fiscfg, fiscfg); + mv_write_cached_reg(port_mmio + LTMODE, old_ltmode, ltmode); + mv_write_cached_reg(port_mmio + EDMA_HALTCOND, old_haltcond, haltcond); } static void mv_60x1_errata_sata25(struct ata_port *ap, int want_ncq) @@ -1379,13 +1422,13 @@ static void mv_60x1_errata_sata25(struct ata_port *ap, int want_ncq) u32 old, new; /* workaround for 88SX60x1 FEr SATA#25 (part 1) */ - old = readl(hpriv->base + MV_GPIO_PORT_CTL_OFS); + old = readl(hpriv->base + GPIO_PORT_CTL); if (want_ncq) new = old | (1 << 22); else new = old & ~(1 << 22); if (new != old) - writel(new, hpriv->base + MV_GPIO_PORT_CTL_OFS); + writel(new, hpriv->base + GPIO_PORT_CTL); } /** @@ -1409,7 +1452,7 @@ static void mv_bmdma_enable_iie(struct ata_port *ap, int enable_bmdma) new = *old | 1; else new = *old & ~1; - mv_write_cached_reg(mv_ap_base(ap) + EDMA_UNKNOWN_RSVD_OFS, old, new); + mv_write_cached_reg(mv_ap_base(ap) + EDMA_UNKNOWN_RSVD, old, new); } /* @@ -1437,8 +1480,8 @@ static void mv_soc_led_blink_enable(struct ata_port *ap) return; hpriv->hp_flags |= MV_HP_QUIRK_LED_BLINK_EN; hc_mmio = mv_hc_base_from_port(mv_host_base(host), ap->port_no); - led_ctrl = readl(hc_mmio + SOC_LED_CTRL_OFS); - writel(led_ctrl | SOC_LED_CTRL_BLINK, hc_mmio + SOC_LED_CTRL_OFS); + led_ctrl = readl(hc_mmio + SOC_LED_CTRL); + writel(led_ctrl | SOC_LED_CTRL_BLINK, hc_mmio + SOC_LED_CTRL); } static void mv_soc_led_blink_disable(struct ata_port *ap) @@ -1463,8 +1506,8 @@ static void mv_soc_led_blink_disable(struct ata_port *ap) hpriv->hp_flags &= ~MV_HP_QUIRK_LED_BLINK_EN; hc_mmio = mv_hc_base_from_port(mv_host_base(host), ap->port_no); - led_ctrl = readl(hc_mmio + SOC_LED_CTRL_OFS); - writel(led_ctrl & ~SOC_LED_CTRL_BLINK, hc_mmio + SOC_LED_CTRL_OFS); + led_ctrl = readl(hc_mmio + SOC_LED_CTRL); + writel(led_ctrl & ~SOC_LED_CTRL_BLINK, hc_mmio + SOC_LED_CTRL); } static void mv_edma_cfg(struct ata_port *ap, int want_ncq, int want_edma) @@ -1528,7 +1571,7 @@ static void mv_edma_cfg(struct ata_port *ap, int want_ncq, int want_edma) pp->pp_flags |= MV_PP_FLAG_NCQ_EN; } - writelfl(cfg, port_mmio + EDMA_CFG_OFS); + writelfl(cfg, port_mmio + EDMA_CFG); } static void mv_port_free_dma_mem(struct ata_port *ap) @@ -1575,6 +1618,7 @@ static int mv_port_start(struct ata_port *ap) struct device *dev = ap->host->dev; struct mv_host_priv *hpriv = ap->host->private_data; struct mv_port_priv *pp; + unsigned long flags; int tag; pp = devm_kzalloc(dev, sizeof(*pp), GFP_KERNEL); @@ -1610,8 +1654,12 @@ static int mv_port_start(struct ata_port *ap) pp->sg_tbl_dma[tag] = pp->sg_tbl_dma[0]; } } + + spin_lock_irqsave(ap->lock, flags); mv_save_cached_regs(ap); mv_edma_cfg(ap, 0, 0); + spin_unlock_irqrestore(ap->lock, flags); + return 0; out_port_free_dma_mem: @@ -1630,8 +1678,12 @@ out_port_free_dma_mem: */ static void mv_port_stop(struct ata_port *ap) { + unsigned long flags; + + spin_lock_irqsave(ap->lock, flags); mv_stop_edma(ap); mv_enable_port_irqs(ap, 0); + spin_unlock_irqrestore(ap->lock, flags); mv_port_free_dma_mem(ap); } @@ -1749,13 +1801,13 @@ static void mv_bmdma_setup(struct ata_queued_cmd *qc) mv_fill_sg(qc); /* clear all DMA cmd bits */ - writel(0, port_mmio + BMDMA_CMD_OFS); + writel(0, port_mmio + BMDMA_CMD); /* load PRD table addr. */ writel((pp->sg_tbl_dma[qc->tag] >> 16) >> 16, - port_mmio + BMDMA_PRD_HIGH_OFS); + port_mmio + BMDMA_PRD_HIGH); writelfl(pp->sg_tbl_dma[qc->tag], - port_mmio + BMDMA_PRD_LOW_OFS); + port_mmio + BMDMA_PRD_LOW); /* issue r/w command */ ap->ops->sff_exec_command(ap, &qc->tf); @@ -1776,7 +1828,7 @@ static void mv_bmdma_start(struct ata_queued_cmd *qc) u32 cmd = (rw ? 0 : ATA_DMA_WR) | ATA_DMA_START; /* start host DMA transaction */ - writelfl(cmd, port_mmio + BMDMA_CMD_OFS); + writelfl(cmd, port_mmio + BMDMA_CMD); } /** @@ -1795,9 +1847,9 @@ static void mv_bmdma_stop(struct ata_queued_cmd *qc) u32 cmd; /* clear start/stop bit */ - cmd = readl(port_mmio + BMDMA_CMD_OFS); + cmd = readl(port_mmio + BMDMA_CMD); cmd &= ~ATA_DMA_START; - writelfl(cmd, port_mmio + BMDMA_CMD_OFS); + writelfl(cmd, port_mmio + BMDMA_CMD); /* one-PIO-cycle guaranteed wait, per spec, for HDMA1:0 transition */ ata_sff_dma_pause(ap); @@ -1821,7 +1873,7 @@ static u8 mv_bmdma_status(struct ata_port *ap) * Other bits are valid only if ATA_DMA_ACTIVE==0, * and the ATA_DMA_INTR bit doesn't exist. */ - reg = readl(port_mmio + BMDMA_STATUS_OFS); + reg = readl(port_mmio + BMDMA_STATUS); if (reg & ATA_DMA_ACTIVE) status = ATA_DMA_ACTIVE; else @@ -2029,28 +2081,28 @@ static unsigned int mv_send_fis(struct ata_port *ap, u32 *fis, int nwords) int i, timeout = 200, final_word = nwords - 1; /* Initiate FIS transmission mode */ - old_ifctl = readl(port_mmio + SATA_IFCTL_OFS); + old_ifctl = readl(port_mmio + SATA_IFCTL); ifctl = 0x100 | (old_ifctl & 0xf); - writelfl(ifctl, port_mmio + SATA_IFCTL_OFS); + writelfl(ifctl, port_mmio + SATA_IFCTL); /* Send all words of the FIS except for the final word */ for (i = 0; i < final_word; ++i) - writel(fis[i], port_mmio + VENDOR_UNIQUE_FIS_OFS); + writel(fis[i], port_mmio + VENDOR_UNIQUE_FIS); /* Flag end-of-transmission, and then send the final word */ - writelfl(ifctl | 0x200, port_mmio + SATA_IFCTL_OFS); - writelfl(fis[final_word], port_mmio + VENDOR_UNIQUE_FIS_OFS); + writelfl(ifctl | 0x200, port_mmio + SATA_IFCTL); + writelfl(fis[final_word], port_mmio + VENDOR_UNIQUE_FIS); /* * Wait for FIS transmission to complete. * This typically takes just a single iteration. */ do { - ifstat = readl(port_mmio + SATA_IFSTAT_OFS); + ifstat = readl(port_mmio + SATA_IFSTAT); } while (!(ifstat & 0x1000) && --timeout); /* Restore original port configuration */ - writelfl(old_ifctl, port_mmio + SATA_IFCTL_OFS); + writelfl(old_ifctl, port_mmio + SATA_IFCTL); /* See if it worked */ if ((ifstat & 0x3000) != 0x1000) { @@ -2148,7 +2200,7 @@ static unsigned int mv_qc_issue(struct ata_queued_cmd *qc) /* Write the request in pointer to kick the EDMA to life */ writelfl((pp->crqb_dma & EDMA_REQ_Q_BASE_LO_MASK) | in_index, - port_mmio + EDMA_REQ_Q_IN_PTR_OFS); + port_mmio + EDMA_REQ_Q_IN_PTR); return 0; case ATA_PROT_PIO: @@ -2259,7 +2311,7 @@ static unsigned int mv_get_err_pmp_map(struct ata_port *ap) { void __iomem *port_mmio = mv_ap_base(ap); - return readl(port_mmio + SATA_TESTCTL_OFS) >> 16; + return readl(port_mmio + SATA_TESTCTL) >> 16; } static void mv_pmp_eh_prep(struct ata_port *ap, unsigned int pmp_map) @@ -2292,9 +2344,9 @@ static int mv_req_q_empty(struct ata_port *ap) void __iomem *port_mmio = mv_ap_base(ap); u32 in_ptr, out_ptr; - in_ptr = (readl(port_mmio + EDMA_REQ_Q_IN_PTR_OFS) + in_ptr = (readl(port_mmio + EDMA_REQ_Q_IN_PTR) >> EDMA_REQ_Q_PTR_SHIFT) & MV_MAX_Q_DEPTH_MASK; - out_ptr = (readl(port_mmio + EDMA_REQ_Q_OUT_PTR_OFS) + out_ptr = (readl(port_mmio + EDMA_REQ_Q_OUT_PTR) >> EDMA_REQ_Q_PTR_SHIFT) & MV_MAX_Q_DEPTH_MASK; return (in_ptr == out_ptr); /* 1 == queue_is_empty */ } @@ -2456,12 +2508,12 @@ static void mv_err_intr(struct ata_port *ap) sata_scr_read(&ap->link, SCR_ERROR, &serr); sata_scr_write_flush(&ap->link, SCR_ERROR, serr); - edma_err_cause = readl(port_mmio + EDMA_ERR_IRQ_CAUSE_OFS); + edma_err_cause = readl(port_mmio + EDMA_ERR_IRQ_CAUSE); if (IS_GEN_IIE(hpriv) && (edma_err_cause & EDMA_ERR_TRANS_IRQ_7)) { - fis_cause = readl(port_mmio + SATA_FIS_IRQ_CAUSE_OFS); - writelfl(~fis_cause, port_mmio + SATA_FIS_IRQ_CAUSE_OFS); + fis_cause = readl(port_mmio + FIS_IRQ_CAUSE); + writelfl(~fis_cause, port_mmio + FIS_IRQ_CAUSE); } - writelfl(~edma_err_cause, port_mmio + EDMA_ERR_IRQ_CAUSE_OFS); + writelfl(~edma_err_cause, port_mmio + EDMA_ERR_IRQ_CAUSE); if (edma_err_cause & EDMA_ERR_DEV) { /* @@ -2479,7 +2531,7 @@ static void mv_err_intr(struct ata_port *ap) if (IS_GEN_IIE(hpriv) && (edma_err_cause & EDMA_ERR_TRANS_IRQ_7)) { ata_ehi_push_desc(ehi, "fis_cause=%08x", fis_cause); - if (fis_cause & SATA_FIS_IRQ_AN) { + if (fis_cause & FIS_IRQ_CAUSE_AN) { u32 ec = edma_err_cause & ~(EDMA_ERR_TRANS_IRQ_7 | EDMA_ERR_IRQ_TRANSIENT); sata_async_notification(ap); @@ -2581,7 +2633,7 @@ static void mv_process_crpb_response(struct ata_port *ap, u16 edma_status = le16_to_cpu(response->flags); /* * edma_status from a response queue entry: - * LSB is from EDMA_ERR_IRQ_CAUSE_OFS (non-NCQ only). + * LSB is from EDMA_ERR_IRQ_CAUSE (non-NCQ only). * MSB is saved ATA status from command completion. */ if (!ncq_enabled) { @@ -2613,7 +2665,7 @@ static void mv_process_crpb_entries(struct ata_port *ap, struct mv_port_priv *pp int ncq_enabled = (pp->pp_flags & MV_PP_FLAG_NCQ_EN); /* Get the hardware queue position index */ - in_index = (readl(port_mmio + EDMA_RSP_Q_IN_PTR_OFS) + in_index = (readl(port_mmio + EDMA_RSP_Q_IN_PTR) >> EDMA_RSP_Q_PTR_SHIFT) & MV_MAX_Q_DEPTH_MASK; /* Process new responses from since the last time we looked */ @@ -2638,7 +2690,7 @@ static void mv_process_crpb_entries(struct ata_port *ap, struct mv_port_priv *pp if (work_done) writelfl((pp->crpb_dma & EDMA_RSP_Q_BASE_LO_MASK) | (pp->resp_idx << EDMA_RSP_Q_PTR_SHIFT), - port_mmio + EDMA_RSP_Q_OUT_PTR_OFS); + port_mmio + EDMA_RSP_Q_OUT_PTR); } static void mv_port_intr(struct ata_port *ap, u32 port_cause) @@ -2695,7 +2747,7 @@ static int mv_host_intr(struct ata_host *host, u32 main_irq_cause) /* If asserted, clear the "all ports" IRQ coalescing bit */ if (main_irq_cause & ALL_PORTS_COAL_DONE) - writel(~ALL_PORTS_COAL_IRQ, mmio + MV_IRQ_COAL_CAUSE); + writel(~ALL_PORTS_COAL_IRQ, mmio + IRQ_COAL_CAUSE); for (port = 0; port < hpriv->n_ports; port++) { struct ata_port *ap = host->ports[port]; @@ -2739,7 +2791,7 @@ static int mv_host_intr(struct ata_host *host, u32 main_irq_cause) ack_irqs |= (DMA_IRQ | DEV_IRQ) << p; } hc_mmio = mv_hc_base_from_port(mmio, port); - writelfl(~ack_irqs, hc_mmio + HC_IRQ_CAUSE_OFS); + writelfl(~ack_irqs, hc_mmio + HC_IRQ_CAUSE); handled = 1; } /* @@ -2761,7 +2813,7 @@ static int mv_pci_error(struct ata_host *host, void __iomem *mmio) unsigned int i, err_mask, printed = 0; u32 err_cause; - err_cause = readl(mmio + hpriv->irq_cause_ofs); + err_cause = readl(mmio + hpriv->irq_cause_offset); dev_printk(KERN_ERR, host->dev, "PCI ERROR; PCI IRQ cause=0x%08x\n", err_cause); @@ -2769,7 +2821,7 @@ static int mv_pci_error(struct ata_host *host, void __iomem *mmio) DPRINTK("All regs @ PCI error\n"); mv_dump_all_regs(mmio, -1, to_pci_dev(host->dev)); - writelfl(0, mmio + hpriv->irq_cause_ofs); + writelfl(0, mmio + hpriv->irq_cause_offset); for (i = 0; i < host->n_ports; i++) { ap = host->ports[i]; @@ -2906,7 +2958,7 @@ static void mv5_reset_bus(struct ata_host *host, void __iomem *mmio) static void mv5_reset_flash(struct mv_host_priv *hpriv, void __iomem *mmio) { - writel(0x0fcfffff, mmio + MV_FLASH_CTL_OFS); + writel(0x0fcfffff, mmio + FLASH_CTL); } static void mv5_read_preamp(struct mv_host_priv *hpriv, int idx, @@ -2925,7 +2977,7 @@ static void mv5_enable_leds(struct mv_host_priv *hpriv, void __iomem *mmio) { u32 tmp; - writel(0, mmio + MV_GPIO_PORT_CTL_OFS); + writel(0, mmio + GPIO_PORT_CTL); /* FIXME: handle MV_HP_ERRATA_50XXB2 errata */ @@ -2943,14 +2995,14 @@ static void mv5_phy_errata(struct mv_host_priv *hpriv, void __iomem *mmio, int fix_apm_sq = (hpriv->hp_flags & MV_HP_ERRATA_50XXB0); if (fix_apm_sq) { - tmp = readl(phy_mmio + MV5_LTMODE_OFS); + tmp = readl(phy_mmio + MV5_LTMODE); tmp |= (1 << 19); - writel(tmp, phy_mmio + MV5_LTMODE_OFS); + writel(tmp, phy_mmio + MV5_LTMODE); - tmp = readl(phy_mmio + MV5_PHY_CTL_OFS); + tmp = readl(phy_mmio + MV5_PHY_CTL); tmp &= ~0x3; tmp |= 0x1; - writel(tmp, phy_mmio + MV5_PHY_CTL_OFS); + writel(tmp, phy_mmio + MV5_PHY_CTL); } tmp = readl(phy_mmio + MV5_PHY_MODE); @@ -2971,7 +3023,7 @@ static void mv5_reset_hc_port(struct mv_host_priv *hpriv, void __iomem *mmio, mv_reset_channel(hpriv, mmio, port); ZERO(0x028); /* command */ - writel(0x11f, port_mmio + EDMA_CFG_OFS); + writel(0x11f, port_mmio + EDMA_CFG); ZERO(0x004); /* timer */ ZERO(0x008); /* irq err cause */ ZERO(0x00c); /* irq err mask */ @@ -2982,7 +3034,7 @@ static void mv5_reset_hc_port(struct mv_host_priv *hpriv, void __iomem *mmio, ZERO(0x024); /* respq outp */ ZERO(0x020); /* respq inp */ ZERO(0x02c); /* test control */ - writel(0xbc, port_mmio + EDMA_IORDY_TMOUT_OFS); + writel(0xbc, port_mmio + EDMA_IORDY_TMOUT); } #undef ZERO @@ -3028,16 +3080,16 @@ static void mv_reset_pci_bus(struct ata_host *host, void __iomem *mmio) struct mv_host_priv *hpriv = host->private_data; u32 tmp; - tmp = readl(mmio + MV_PCI_MODE_OFS); + tmp = readl(mmio + MV_PCI_MODE); tmp &= 0xff00ffff; - writel(tmp, mmio + MV_PCI_MODE_OFS); + writel(tmp, mmio + MV_PCI_MODE); ZERO(MV_PCI_DISC_TIMER); ZERO(MV_PCI_MSI_TRIGGER); - writel(0x000100ff, mmio + MV_PCI_XBAR_TMOUT_OFS); + writel(0x000100ff, mmio + MV_PCI_XBAR_TMOUT); ZERO(MV_PCI_SERR_MASK); - ZERO(hpriv->irq_cause_ofs); - ZERO(hpriv->irq_mask_ofs); + ZERO(hpriv->irq_cause_offset); + ZERO(hpriv->irq_mask_offset); ZERO(MV_PCI_ERR_LOW_ADDRESS); ZERO(MV_PCI_ERR_HIGH_ADDRESS); ZERO(MV_PCI_ERR_ATTRIBUTE); @@ -3051,10 +3103,10 @@ static void mv6_reset_flash(struct mv_host_priv *hpriv, void __iomem *mmio) mv5_reset_flash(hpriv, mmio); - tmp = readl(mmio + MV_GPIO_PORT_CTL_OFS); + tmp = readl(mmio + GPIO_PORT_CTL); tmp &= 0x3; tmp |= (1 << 5) | (1 << 6); - writel(tmp, mmio + MV_GPIO_PORT_CTL_OFS); + writel(tmp, mmio + GPIO_PORT_CTL); } /** @@ -3069,7 +3121,7 @@ static void mv6_reset_flash(struct mv_host_priv *hpriv, void __iomem *mmio) static int mv6_reset_hc(struct mv_host_priv *hpriv, void __iomem *mmio, unsigned int n_hc) { - void __iomem *reg = mmio + PCI_MAIN_CMD_STS_OFS; + void __iomem *reg = mmio + PCI_MAIN_CMD_STS; int i, rc = 0; u32 t; @@ -3127,7 +3179,7 @@ static void mv6_read_preamp(struct mv_host_priv *hpriv, int idx, void __iomem *port_mmio; u32 tmp; - tmp = readl(mmio + MV_RESET_CFG_OFS); + tmp = readl(mmio + RESET_CFG); if ((tmp & (1 << 0)) == 0) { hpriv->signal[idx].amps = 0x7 << 8; hpriv->signal[idx].pre = 0x1 << 5; @@ -3143,7 +3195,7 @@ static void mv6_read_preamp(struct mv_host_priv *hpriv, int idx, static void mv6_enable_leds(struct mv_host_priv *hpriv, void __iomem *mmio) { - writel(0x00000060, mmio + MV_GPIO_PORT_CTL_OFS); + writel(0x00000060, mmio + GPIO_PORT_CTL); } static void mv6_phy_errata(struct mv_host_priv *hpriv, void __iomem *mmio, @@ -3201,6 +3253,7 @@ static void mv6_phy_errata(struct mv_host_priv *hpriv, void __iomem *mmio, * Workaround for 60x1-B2 errata SATA#13: * Any write to PHY_MODE4 (above) may corrupt PHY_MODE3, * so we must always rewrite PHY_MODE3 after PHY_MODE4. + * Or ensure we use writelfl() when writing PHY_MODE4. */ writel(m3, port_mmio + PHY_MODE3); @@ -3252,7 +3305,7 @@ static void mv_soc_reset_hc_port(struct mv_host_priv *hpriv, mv_reset_channel(hpriv, mmio, port); ZERO(0x028); /* command */ - writel(0x101f, port_mmio + EDMA_CFG_OFS); + writel(0x101f, port_mmio + EDMA_CFG); ZERO(0x004); /* timer */ ZERO(0x008); /* irq err cause */ ZERO(0x00c); /* irq err mask */ @@ -3263,7 +3316,7 @@ static void mv_soc_reset_hc_port(struct mv_host_priv *hpriv, ZERO(0x024); /* respq outp */ ZERO(0x020); /* respq inp */ ZERO(0x02c); /* test control */ - writel(0xbc, port_mmio + EDMA_IORDY_TMOUT_OFS); + writel(0xbc, port_mmio + EDMA_IORDY_TMOUT); } #undef ZERO @@ -3308,12 +3361,12 @@ static void mv_soc_reset_bus(struct ata_host *host, void __iomem *mmio) static void mv_setup_ifcfg(void __iomem *port_mmio, int want_gen2i) { - u32 ifcfg = readl(port_mmio + SATA_INTERFACE_CFG_OFS); + u32 ifcfg = readl(port_mmio + SATA_IFCFG); ifcfg = (ifcfg & 0xf7f) | 0x9b1000; /* from chip spec */ if (want_gen2i) ifcfg |= (1 << 7); /* enable gen2i speed */ - writelfl(ifcfg, port_mmio + SATA_INTERFACE_CFG_OFS); + writelfl(ifcfg, port_mmio + SATA_IFCFG); } static void mv_reset_channel(struct mv_host_priv *hpriv, void __iomem *mmio, @@ -3327,7 +3380,7 @@ static void mv_reset_channel(struct mv_host_priv *hpriv, void __iomem *mmio, * to disable the EDMA engine before doing the EDMA_RESET operation. */ mv_stop_edma_engine(port_mmio); - writelfl(EDMA_RESET, port_mmio + EDMA_CMD_OFS); + writelfl(EDMA_RESET, port_mmio + EDMA_CMD); if (!IS_GEN_I(hpriv)) { /* Enable 3.0gb/s link speed: this survives EDMA_RESET */ @@ -3336,11 +3389,11 @@ static void mv_reset_channel(struct mv_host_priv *hpriv, void __iomem *mmio, /* * Strobing EDMA_RESET here causes a hard reset of the SATA transport, * link, and physical layers. It resets all SATA interface registers - * (except for SATA_INTERFACE_CFG), and issues a COMRESET to the dev. + * (except for SATA_IFCFG), and issues a COMRESET to the dev. */ - writelfl(EDMA_RESET, port_mmio + EDMA_CMD_OFS); + writelfl(EDMA_RESET, port_mmio + EDMA_CMD); udelay(25); /* allow reset propagation */ - writelfl(0, port_mmio + EDMA_CMD_OFS); + writelfl(0, port_mmio + EDMA_CMD); hpriv->ops->phy_errata(hpriv, mmio, port_no); @@ -3352,12 +3405,12 @@ static void mv_pmp_select(struct ata_port *ap, int pmp) { if (sata_pmp_supported(ap)) { void __iomem *port_mmio = mv_ap_base(ap); - u32 reg = readl(port_mmio + SATA_IFCTL_OFS); + u32 reg = readl(port_mmio + SATA_IFCTL); int old = reg & 0xf; if (old != pmp) { reg = (reg & ~0xf) | pmp; - writelfl(reg, port_mmio + SATA_IFCTL_OFS); + writelfl(reg, port_mmio + SATA_IFCTL); } } } @@ -3432,11 +3485,11 @@ static void mv_eh_thaw(struct ata_port *ap) u32 hc_irq_cause; /* clear EDMA errors on this port */ - writel(0, port_mmio + EDMA_ERR_IRQ_CAUSE_OFS); + writel(0, port_mmio + EDMA_ERR_IRQ_CAUSE); /* clear pending irq events */ hc_irq_cause = ~((DEV_IRQ | DMA_IRQ) << hardport); - writelfl(hc_irq_cause, hc_mmio + HC_IRQ_CAUSE_OFS); + writelfl(hc_irq_cause, hc_mmio + HC_IRQ_CAUSE); mv_enable_port_irqs(ap, ERR_IRQ); } @@ -3455,8 +3508,7 @@ static void mv_eh_thaw(struct ata_port *ap) */ static void mv_port_init(struct ata_ioports *port, void __iomem *port_mmio) { - void __iomem *shd_base = port_mmio + SHD_BLK_OFS; - unsigned serr_ofs; + void __iomem *serr, *shd_base = port_mmio + SHD_BLK; /* PIO related setup */ @@ -3471,23 +3523,23 @@ static void mv_port_init(struct ata_ioports *port, void __iomem *port_mmio) port->status_addr = port->command_addr = shd_base + (sizeof(u32) * ATA_REG_STATUS); /* special case: control/altstatus doesn't have ATA_REG_ address */ - port->altstatus_addr = port->ctl_addr = shd_base + SHD_CTL_AST_OFS; + port->altstatus_addr = port->ctl_addr = shd_base + SHD_CTL_AST; /* unused: */ port->cmd_addr = port->bmdma_addr = port->scr_addr = NULL; /* Clear any currently outstanding port interrupt conditions */ - serr_ofs = mv_scr_offset(SCR_ERROR); - writelfl(readl(port_mmio + serr_ofs), port_mmio + serr_ofs); - writelfl(0, port_mmio + EDMA_ERR_IRQ_CAUSE_OFS); + serr = port_mmio + mv_scr_offset(SCR_ERROR); + writelfl(readl(serr), serr); + writelfl(0, port_mmio + EDMA_ERR_IRQ_CAUSE); /* unmask all non-transient EDMA error interrupts */ - writelfl(~EDMA_ERR_IRQ_TRANSIENT, port_mmio + EDMA_ERR_IRQ_MASK_OFS); + writelfl(~EDMA_ERR_IRQ_TRANSIENT, port_mmio + EDMA_ERR_IRQ_MASK); VPRINTK("EDMA cfg=0x%08x EDMA IRQ err cause/mask=0x%08x/0x%08x\n", - readl(port_mmio + EDMA_CFG_OFS), - readl(port_mmio + EDMA_ERR_IRQ_CAUSE_OFS), - readl(port_mmio + EDMA_ERR_IRQ_MASK_OFS)); + readl(port_mmio + EDMA_CFG), + readl(port_mmio + EDMA_ERR_IRQ_CAUSE), + readl(port_mmio + EDMA_ERR_IRQ_MASK)); } static unsigned int mv_in_pcix_mode(struct ata_host *host) @@ -3498,7 +3550,7 @@ static unsigned int mv_in_pcix_mode(struct ata_host *host) if (IS_SOC(hpriv) || !IS_PCIE(hpriv)) return 0; /* not PCI-X capable */ - reg = readl(mmio + MV_PCI_MODE_OFS); + reg = readl(mmio + MV_PCI_MODE); if ((reg & MV_PCI_MODE_MASK) == 0) return 0; /* conventional PCI mode */ return 1; /* chip is in PCI-X mode */ @@ -3511,13 +3563,25 @@ static int mv_pci_cut_through_okay(struct ata_host *host) u32 reg; if (!mv_in_pcix_mode(host)) { - reg = readl(mmio + PCI_COMMAND_OFS); - if (reg & PCI_COMMAND_MRDTRIG) + reg = readl(mmio + MV_PCI_COMMAND); + if (reg & MV_PCI_COMMAND_MRDTRIG) return 0; /* not okay */ } return 1; /* okay */ } +static void mv_60x1b2_errata_pci7(struct ata_host *host) +{ + struct mv_host_priv *hpriv = host->private_data; + void __iomem *mmio = hpriv->base; + + /* workaround for 60x1-B2 errata PCI#7 */ + if (mv_in_pcix_mode(host)) { + u32 reg = readl(mmio + MV_PCI_COMMAND); + writelfl(reg & ~MV_PCI_COMMAND_MWRCOM, mmio + MV_PCI_COMMAND); + } +} + static int mv_chip_id(struct ata_host *host, unsigned int board_idx) { struct pci_dev *pdev = to_pci_dev(host->dev); @@ -3571,6 +3635,7 @@ static int mv_chip_id(struct ata_host *host, unsigned int board_idx) switch (pdev->revision) { case 0x7: + mv_60x1b2_errata_pci7(host); hp_flags |= MV_HP_ERRATA_60X1B2; break; case 0x9: @@ -3647,12 +3712,12 @@ static int mv_chip_id(struct ata_host *host, unsigned int board_idx) hpriv->hp_flags = hp_flags; if (hp_flags & MV_HP_PCIE) { - hpriv->irq_cause_ofs = PCIE_IRQ_CAUSE_OFS; - hpriv->irq_mask_ofs = PCIE_IRQ_MASK_OFS; + hpriv->irq_cause_offset = PCIE_IRQ_CAUSE; + hpriv->irq_mask_offset = PCIE_IRQ_MASK; hpriv->unmask_all_irqs = PCIE_UNMASK_ALL_IRQS; } else { - hpriv->irq_cause_ofs = PCI_IRQ_CAUSE_OFS; - hpriv->irq_mask_ofs = PCI_IRQ_MASK_OFS; + hpriv->irq_cause_offset = PCI_IRQ_CAUSE; + hpriv->irq_mask_offset = PCI_IRQ_MASK; hpriv->unmask_all_irqs = PCI_UNMASK_ALL_IRQS; } @@ -3681,11 +3746,11 @@ static int mv_init_host(struct ata_host *host, unsigned int board_idx) goto done; if (IS_SOC(hpriv)) { - hpriv->main_irq_cause_addr = mmio + SOC_HC_MAIN_IRQ_CAUSE_OFS; - hpriv->main_irq_mask_addr = mmio + SOC_HC_MAIN_IRQ_MASK_OFS; + hpriv->main_irq_cause_addr = mmio + SOC_HC_MAIN_IRQ_CAUSE; + hpriv->main_irq_mask_addr = mmio + SOC_HC_MAIN_IRQ_MASK; } else { - hpriv->main_irq_cause_addr = mmio + PCI_HC_MAIN_IRQ_CAUSE_OFS; - hpriv->main_irq_mask_addr = mmio + PCI_HC_MAIN_IRQ_MASK_OFS; + hpriv->main_irq_cause_addr = mmio + PCI_HC_MAIN_IRQ_CAUSE; + hpriv->main_irq_mask_addr = mmio + PCI_HC_MAIN_IRQ_MASK; } /* initialize shadow irq mask with register's value */ @@ -3727,18 +3792,20 @@ static int mv_init_host(struct ata_host *host, unsigned int board_idx) VPRINTK("HC%i: HC config=0x%08x HC IRQ cause " "(before clear)=0x%08x\n", hc, - readl(hc_mmio + HC_CFG_OFS), - readl(hc_mmio + HC_IRQ_CAUSE_OFS)); + readl(hc_mmio + HC_CFG), + readl(hc_mmio + HC_IRQ_CAUSE)); /* Clear any currently outstanding hc interrupt conditions */ - writelfl(0, hc_mmio + HC_IRQ_CAUSE_OFS); + writelfl(0, hc_mmio + HC_IRQ_CAUSE); } - /* Clear any currently outstanding host interrupt conditions */ - writelfl(0, mmio + hpriv->irq_cause_ofs); + if (!IS_SOC(hpriv)) { + /* Clear any currently outstanding host interrupt conditions */ + writelfl(0, mmio + hpriv->irq_cause_offset); - /* 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_offset); + } /* * enable only global host interrupts for now. @@ -3844,7 +3911,7 @@ static int mv_platform_probe(struct platform_device *pdev) host->iomap = NULL; hpriv->base = devm_ioremap(&pdev->dev, res->start, res->end - res->start + 1); - hpriv->base -= MV_SATAHC0_REG_BASE; + hpriv->base -= SATAHC0_REG_BASE; /* * (Re-)program MBUS remapping windows if we are asked to. @@ -3913,10 +3980,10 @@ static int pci_go_64(struct pci_dev *pdev) { int rc; - if (!pci_set_dma_mask(pdev, DMA_64BIT_MASK)) { - rc = pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK); + if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64))) { + rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)); if (rc) { - rc = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK); + rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)); if (rc) { dev_printk(KERN_ERR, &pdev->dev, "64-bit DMA enable failed\n"); @@ -3924,13 +3991,13 @@ static int pci_go_64(struct pci_dev *pdev) } } } else { - rc = pci_set_dma_mask(pdev, DMA_32BIT_MASK); + rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); if (rc) { dev_printk(KERN_ERR, &pdev->dev, "32-bit DMA enable failed\n"); return rc; } - rc = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK); + rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)); if (rc) { dev_printk(KERN_ERR, &pdev->dev, "32-bit consistent DMA enable failed\n"); |
