diff options
Diffstat (limited to 'drivers/scsi/mvsas/mv_chips.h')
| -rw-r--r-- | drivers/scsi/mvsas/mv_chips.h | 270 |
1 files changed, 270 insertions, 0 deletions
diff --git a/drivers/scsi/mvsas/mv_chips.h b/drivers/scsi/mvsas/mv_chips.h new file mode 100644 index 000000000..8c4479ab4 --- /dev/null +++ b/drivers/scsi/mvsas/mv_chips.h @@ -0,0 +1,270 @@ +/* + * Marvell 88SE64xx/88SE94xx register IO interface + * + * Copyright 2007 Red Hat, Inc. + * Copyright 2008 Marvell. <kewei@marvell.com> + * Copyright 2009-2011 Marvell. <yuxiangl@marvell.com> + * + * This file is licensed under GPLv2. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; version 2 of the + * License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + * USA +*/ + + +#ifndef _MV_CHIPS_H_ +#define _MV_CHIPS_H_ + +#define mr32(reg) readl(regs + reg) +#define mw32(reg, val) writel((val), regs + reg) +#define mw32_f(reg, val) do { \ + mw32(reg, val); \ + mr32(reg); \ + } while (0) + +#define iow32(reg, val) outl(val, (unsigned long)(regs + reg)) +#define ior32(reg) inl((unsigned long)(regs + reg)) +#define iow16(reg, val) outw((unsigned long)(val, regs + reg)) +#define ior16(reg) inw((unsigned long)(regs + reg)) +#define iow8(reg, val) outb((unsigned long)(val, regs + reg)) +#define ior8(reg) inb((unsigned long)(regs + reg)) + +static inline u32 mvs_cr32(struct mvs_info *mvi, u32 addr) +{ + void __iomem *regs = mvi->regs; + mw32(MVS_CMD_ADDR, addr); + return mr32(MVS_CMD_DATA); +} + +static inline void mvs_cw32(struct mvs_info *mvi, u32 addr, u32 val) +{ + void __iomem *regs = mvi->regs; + mw32(MVS_CMD_ADDR, addr); + mw32(MVS_CMD_DATA, val); +} + +static inline u32 mvs_read_phy_ctl(struct mvs_info *mvi, u32 port) +{ + void __iomem *regs = mvi->regs; + return (port < 4) ? mr32(MVS_P0_SER_CTLSTAT + port * 4) : + mr32(MVS_P4_SER_CTLSTAT + (port - 4) * 4); +} + +static inline void mvs_write_phy_ctl(struct mvs_info *mvi, u32 port, u32 val) +{ + void __iomem *regs = mvi->regs; + if (port < 4) + mw32(MVS_P0_SER_CTLSTAT + port * 4, val); + else + mw32(MVS_P4_SER_CTLSTAT + (port - 4) * 4, val); +} + +static inline u32 mvs_read_port(struct mvs_info *mvi, u32 off, + u32 off2, u32 port) +{ + void __iomem *regs = mvi->regs + off; + void __iomem *regs2 = mvi->regs + off2; + return (port < 4) ? readl(regs + port * 8) : + readl(regs2 + (port - 4) * 8); +} + +static inline void mvs_write_port(struct mvs_info *mvi, u32 off, u32 off2, + u32 port, u32 val) +{ + void __iomem *regs = mvi->regs + off; + void __iomem *regs2 = mvi->regs + off2; + if (port < 4) + writel(val, regs + port * 8); + else + writel(val, regs2 + (port - 4) * 8); +} + +static inline u32 mvs_read_port_cfg_data(struct mvs_info *mvi, u32 port) +{ + return mvs_read_port(mvi, MVS_P0_CFG_DATA, + MVS_P4_CFG_DATA, port); +} + +static inline void mvs_write_port_cfg_data(struct mvs_info *mvi, + u32 port, u32 val) +{ + mvs_write_port(mvi, MVS_P0_CFG_DATA, + MVS_P4_CFG_DATA, port, val); +} + +static inline void mvs_write_port_cfg_addr(struct mvs_info *mvi, + u32 port, u32 addr) +{ + mvs_write_port(mvi, MVS_P0_CFG_ADDR, + MVS_P4_CFG_ADDR, port, addr); + mdelay(10); +} + +static inline u32 mvs_read_port_vsr_data(struct mvs_info *mvi, u32 port) +{ + return mvs_read_port(mvi, MVS_P0_VSR_DATA, + MVS_P4_VSR_DATA, port); +} + +static inline void mvs_write_port_vsr_data(struct mvs_info *mvi, + u32 port, u32 val) +{ + mvs_write_port(mvi, MVS_P0_VSR_DATA, + MVS_P4_VSR_DATA, port, val); +} + +static inline void mvs_write_port_vsr_addr(struct mvs_info *mvi, + u32 port, u32 addr) +{ + mvs_write_port(mvi, MVS_P0_VSR_ADDR, + MVS_P4_VSR_ADDR, port, addr); + mdelay(10); +} + +static inline u32 mvs_read_port_irq_stat(struct mvs_info *mvi, u32 port) +{ + return mvs_read_port(mvi, MVS_P0_INT_STAT, + MVS_P4_INT_STAT, port); +} + +static inline void mvs_write_port_irq_stat(struct mvs_info *mvi, + u32 port, u32 val) +{ + mvs_write_port(mvi, MVS_P0_INT_STAT, + MVS_P4_INT_STAT, port, val); +} + +static inline u32 mvs_read_port_irq_mask(struct mvs_info *mvi, u32 port) +{ + return mvs_read_port(mvi, MVS_P0_INT_MASK, + MVS_P4_INT_MASK, port); + +} + +static inline void mvs_write_port_irq_mask(struct mvs_info *mvi, + u32 port, u32 val) +{ + mvs_write_port(mvi, MVS_P0_INT_MASK, + MVS_P4_INT_MASK, port, val); +} + +static inline void mvs_phy_hacks(struct mvs_info *mvi) +{ + u32 tmp; + + tmp = mvs_cr32(mvi, CMD_PHY_TIMER); + tmp &= ~(1 << 9); + tmp |= (1 << 10); + mvs_cw32(mvi, CMD_PHY_TIMER, tmp); + + /* enable retry 127 times */ + mvs_cw32(mvi, CMD_SAS_CTL1, 0x7f7f); + + /* extend open frame timeout to max */ + tmp = mvs_cr32(mvi, CMD_SAS_CTL0); + tmp &= ~0xffff; + tmp |= 0x3fff; + mvs_cw32(mvi, CMD_SAS_CTL0, tmp); + + mvs_cw32(mvi, CMD_WD_TIMER, 0x7a0000); + + /* not to halt for different port op during wideport link change */ + mvs_cw32(mvi, CMD_APP_ERR_CONFIG, 0xffefbf7d); +} + +static inline void mvs_int_sata(struct mvs_info *mvi) +{ + u32 tmp; + void __iomem *regs = mvi->regs; + tmp = mr32(MVS_INT_STAT_SRS_0); + if (tmp) + mw32(MVS_INT_STAT_SRS_0, tmp); + MVS_CHIP_DISP->clear_active_cmds(mvi); +} + +static inline void mvs_int_full(struct mvs_info *mvi) +{ + void __iomem *regs = mvi->regs; + u32 tmp, stat; + int i; + + stat = mr32(MVS_INT_STAT); + mvs_int_rx(mvi, false); + + for (i = 0; i < mvi->chip->n_phy; i++) { + tmp = (stat >> i) & (CINT_PORT | CINT_PORT_STOPPED); + if (tmp) + mvs_int_port(mvi, i, tmp); + } + + if (stat & CINT_NON_SPEC_NCQ_ERROR) + MVS_CHIP_DISP->non_spec_ncq_error(mvi); + + if (stat & CINT_SRS) + mvs_int_sata(mvi); + + mw32(MVS_INT_STAT, stat); +} + +static inline void mvs_start_delivery(struct mvs_info *mvi, u32 tx) +{ + void __iomem *regs = mvi->regs; + mw32(MVS_TX_PROD_IDX, tx); +} + +static inline u32 mvs_rx_update(struct mvs_info *mvi) +{ + void __iomem *regs = mvi->regs; + return mr32(MVS_RX_CONS_IDX); +} + +static inline u32 mvs_get_prd_size(void) +{ + return sizeof(struct mvs_prd); +} + +static inline u32 mvs_get_prd_count(void) +{ + return MAX_SG_ENTRY; +} + +static inline void mvs_show_pcie_usage(struct mvs_info *mvi) +{ + u16 link_stat, link_spd; + const char *spd[] = { + "UnKnown", + "2.5", + "5.0", + }; + if (mvi->flags & MVF_FLAG_SOC || mvi->id > 0) + return; + + pci_read_config_word(mvi->pdev, PCR_LINK_STAT, &link_stat); + link_spd = (link_stat & PLS_LINK_SPD) >> PLS_LINK_SPD_OFFS; + if (link_spd >= 3) + link_spd = 0; + dev_printk(KERN_INFO, mvi->dev, + "mvsas: PCI-E x%u, Bandwidth Usage: %s Gbps\n", + (link_stat & PLS_NEG_LINK_WD) >> PLS_NEG_LINK_WD_OFFS, + spd[link_spd]); +} + +static inline u32 mvs_hw_max_link_rate(void) +{ + return MAX_LINK_RATE; +} + +#endif /* _MV_CHIPS_H_ */ + |