2 * Marvell 88SE64xx/88SE94xx register IO interface
4 * Copyright 2007 Red Hat, Inc.
5 * Copyright 2008 Marvell. <kewei@marvell.com>
7 * This file is licensed under GPLv2.
9 * This program is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU General Public License as
11 * published by the Free Software Foundation; version 2 of the
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
29 #define mr32(reg) readl(regs + reg)
30 #define mw32(reg, val) writel((val), regs + reg)
31 #define mw32_f(reg, val) do { \
36 #define iow32(reg, val) outl(val, (unsigned long)(regs + reg))
37 #define ior32(reg) inl((unsigned long)(regs + reg))
38 #define iow16(reg, val) outw((unsigned long)(val, regs + reg))
39 #define ior16(reg) inw((unsigned long)(regs + reg))
40 #define iow8(reg, val) outb((unsigned long)(val, regs + reg))
41 #define ior8(reg) inb((unsigned long)(regs + reg))
43 static inline u32 mvs_cr32(struct mvs_info *mvi, u32 addr)
45 void __iomem *regs = mvi->regs;
46 mw32(MVS_CMD_ADDR, addr);
47 return mr32(MVS_CMD_DATA);
50 static inline void mvs_cw32(struct mvs_info *mvi, u32 addr, u32 val)
52 void __iomem *regs = mvi->regs;
53 mw32(MVS_CMD_ADDR, addr);
54 mw32(MVS_CMD_DATA, val);
57 static inline u32 mvs_read_phy_ctl(struct mvs_info *mvi, u32 port)
59 void __iomem *regs = mvi->regs;
60 return (port < 4) ? mr32(MVS_P0_SER_CTLSTAT + port * 4) :
61 mr32(MVS_P4_SER_CTLSTAT + (port - 4) * 4);
64 static inline void mvs_write_phy_ctl(struct mvs_info *mvi, u32 port, u32 val)
66 void __iomem *regs = mvi->regs;
68 mw32(MVS_P0_SER_CTLSTAT + port * 4, val);
70 mw32(MVS_P4_SER_CTLSTAT + (port - 4) * 4, val);
73 static inline u32 mvs_read_port(struct mvs_info *mvi, u32 off,
76 void __iomem *regs = mvi->regs + off;
77 void __iomem *regs2 = mvi->regs + off2;
78 return (port < 4) ? readl(regs + port * 8) :
79 readl(regs2 + (port - 4) * 8);
82 static inline void mvs_write_port(struct mvs_info *mvi, u32 off, u32 off2,
85 void __iomem *regs = mvi->regs + off;
86 void __iomem *regs2 = mvi->regs + off2;
88 writel(val, regs + port * 8);
90 writel(val, regs2 + (port - 4) * 8);
93 static inline u32 mvs_read_port_cfg_data(struct mvs_info *mvi, u32 port)
95 return mvs_read_port(mvi, MVS_P0_CFG_DATA,
96 MVS_P4_CFG_DATA, port);
99 static inline void mvs_write_port_cfg_data(struct mvs_info *mvi,
102 mvs_write_port(mvi, MVS_P0_CFG_DATA,
103 MVS_P4_CFG_DATA, port, val);
106 static inline void mvs_write_port_cfg_addr(struct mvs_info *mvi,
109 mvs_write_port(mvi, MVS_P0_CFG_ADDR,
110 MVS_P4_CFG_ADDR, port, addr);
114 static inline u32 mvs_read_port_vsr_data(struct mvs_info *mvi, u32 port)
116 return mvs_read_port(mvi, MVS_P0_VSR_DATA,
117 MVS_P4_VSR_DATA, port);
120 static inline void mvs_write_port_vsr_data(struct mvs_info *mvi,
123 mvs_write_port(mvi, MVS_P0_VSR_DATA,
124 MVS_P4_VSR_DATA, port, val);
127 static inline void mvs_write_port_vsr_addr(struct mvs_info *mvi,
130 mvs_write_port(mvi, MVS_P0_VSR_ADDR,
131 MVS_P4_VSR_ADDR, port, addr);
135 static inline u32 mvs_read_port_irq_stat(struct mvs_info *mvi, u32 port)
137 return mvs_read_port(mvi, MVS_P0_INT_STAT,
138 MVS_P4_INT_STAT, port);
141 static inline void mvs_write_port_irq_stat(struct mvs_info *mvi,
144 mvs_write_port(mvi, MVS_P0_INT_STAT,
145 MVS_P4_INT_STAT, port, val);
148 static inline u32 mvs_read_port_irq_mask(struct mvs_info *mvi, u32 port)
150 return mvs_read_port(mvi, MVS_P0_INT_MASK,
151 MVS_P4_INT_MASK, port);
155 static inline void mvs_write_port_irq_mask(struct mvs_info *mvi,
158 mvs_write_port(mvi, MVS_P0_INT_MASK,
159 MVS_P4_INT_MASK, port, val);
162 static inline void __devinit mvs_phy_hacks(struct mvs_info *mvi)
166 /* workaround for SATA R-ERR, to ignore phy glitch */
167 tmp = mvs_cr32(mvi, CMD_PHY_TIMER);
170 mvs_cw32(mvi, CMD_PHY_TIMER, tmp);
172 /* enable retry 127 times */
173 mvs_cw32(mvi, CMD_SAS_CTL1, 0x7f7f);
175 /* extend open frame timeout to max */
176 tmp = mvs_cr32(mvi, CMD_SAS_CTL0);
179 mvs_cw32(mvi, CMD_SAS_CTL0, tmp);
181 /* workaround for WDTIMEOUT , set to 550 ms */
182 mvs_cw32(mvi, CMD_WD_TIMER, 0x7a0000);
184 /* not to halt for different port op during wideport link change */
185 mvs_cw32(mvi, CMD_APP_ERR_CONFIG, 0xffefbf7d);
187 /* workaround for Seagate disk not-found OOB sequence, recv
188 * COMINIT before sending out COMWAKE */
189 tmp = mvs_cr32(mvi, CMD_PHY_MODE_21);
192 mvs_cw32(mvi, CMD_PHY_MODE_21, tmp);
194 tmp = mvs_cr32(mvi, CMD_PHY_TIMER);
196 tmp |= (2U << 29); /* 8 ms retry */
197 mvs_cw32(mvi, CMD_PHY_TIMER, tmp);
200 static inline void mvs_int_sata(struct mvs_info *mvi)
203 void __iomem *regs = mvi->regs;
204 tmp = mr32(MVS_INT_STAT_SRS_0);
206 mw32(MVS_INT_STAT_SRS_0, tmp);
207 MVS_CHIP_DISP->clear_active_cmds(mvi);
210 static inline void mvs_int_full(struct mvs_info *mvi)
212 void __iomem *regs = mvi->regs;
216 stat = mr32(MVS_INT_STAT);
217 mvs_int_rx(mvi, false);
219 for (i = 0; i < mvi->chip->n_phy; i++) {
220 tmp = (stat >> i) & (CINT_PORT | CINT_PORT_STOPPED);
222 mvs_int_port(mvi, i, tmp);
228 mw32(MVS_INT_STAT, stat);
231 static inline void mvs_start_delivery(struct mvs_info *mvi, u32 tx)
233 void __iomem *regs = mvi->regs;
234 mw32(MVS_TX_PROD_IDX, tx);
237 static inline u32 mvs_rx_update(struct mvs_info *mvi)
239 void __iomem *regs = mvi->regs;
240 return mr32(MVS_RX_CONS_IDX);
243 static inline u32 mvs_get_prd_size(void)
245 return sizeof(struct mvs_prd);
248 static inline u32 mvs_get_prd_count(void)
253 static inline void mvs_show_pcie_usage(struct mvs_info *mvi)
255 u16 link_stat, link_spd;
256 const char *spd[] = {
261 if (mvi->flags & MVF_FLAG_SOC || mvi->id > 0)
264 pci_read_config_word(mvi->pdev, PCR_LINK_STAT, &link_stat);
265 link_spd = (link_stat & PLS_LINK_SPD) >> PLS_LINK_SPD_OFFS;
268 dev_printk(KERN_INFO, mvi->dev,
269 "mvsas: PCI-E x%u, Bandwidth Usage: %s Gbps\n",
270 (link_stat & PLS_NEG_LINK_WD) >> PLS_NEG_LINK_WD_OFFS,
274 static inline u32 mvs_hw_max_link_rate(void)
276 return MAX_LINK_RATE;
279 #endif /* _MV_CHIPS_H_ */