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linux/drivers/scsi/mvsas/mv_64xx.c
Xiangliang Yu 0b15fb1fdf [SCSI] mvsas: add support for Task collector mode and fixed relative bugs 
1. Add support for Task collector mode.
2. Fixed relative collector mode bug:
   - I/O failed when disks is on two ports
   - system hang when hotplug disk
   - system hang when unplug disk during run IO
3. Unlock ap->lock within .lldd_execute_task for direct mode to
   improve performance

Signed-off-by: Xiangliang Yu <yuxiangl@marvell.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-05-01 12:08:03 -05:00

816 lines
19 KiB
C
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/*
* Marvell 88SE64xx hardware specific
*
* 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
*/
#include "mv_sas.h"
#include "mv_64xx.h"
#include "mv_chips.h"
static void mvs_64xx_detect_porttype(struct mvs_info *mvi, int i)
{
void __iomem *regs = mvi->regs;
u32 reg;
struct mvs_phy *phy = &mvi->phy[i];
/* TODO check & save device type */
reg = mr32(MVS_GBL_PORT_TYPE);
phy->phy_type &= ~(PORT_TYPE_SAS | PORT_TYPE_SATA);
if (reg & MODE_SAS_SATA & (1 << i))
phy->phy_type |= PORT_TYPE_SAS;
else
phy->phy_type |= PORT_TYPE_SATA;
}
static void __devinit mvs_64xx_enable_xmt(struct mvs_info *mvi, int phy_id)
{
void __iomem *regs = mvi->regs;
u32 tmp;
tmp = mr32(MVS_PCS);
if (mvi->chip->n_phy <= 4)
tmp |= 1 << (phy_id + PCS_EN_PORT_XMT_SHIFT);
else
tmp |= 1 << (phy_id + PCS_EN_PORT_XMT_SHIFT2);
mw32(MVS_PCS, tmp);
}
static void __devinit mvs_64xx_phy_hacks(struct mvs_info *mvi)
{
void __iomem *regs = mvi->regs;
mvs_phy_hacks(mvi);
if (!(mvi->flags & MVF_FLAG_SOC)) {
/* TEST - for phy decoding error, adjust voltage levels */
mw32(MVS_P0_VSR_ADDR + 0, 0x8);
mw32(MVS_P0_VSR_DATA + 0, 0x2F0);
mw32(MVS_P0_VSR_ADDR + 8, 0x8);
mw32(MVS_P0_VSR_DATA + 8, 0x2F0);
mw32(MVS_P0_VSR_ADDR + 16, 0x8);
mw32(MVS_P0_VSR_DATA + 16, 0x2F0);
mw32(MVS_P0_VSR_ADDR + 24, 0x8);
mw32(MVS_P0_VSR_DATA + 24, 0x2F0);
} else {
int i;
/* disable auto port detection */
mw32(MVS_GBL_PORT_TYPE, 0);
for (i = 0; i < mvi->chip->n_phy; i++) {
mvs_write_port_vsr_addr(mvi, i, VSR_PHY_MODE7);
mvs_write_port_vsr_data(mvi, i, 0x90000000);
mvs_write_port_vsr_addr(mvi, i, VSR_PHY_MODE9);
mvs_write_port_vsr_data(mvi, i, 0x50f2);
mvs_write_port_vsr_addr(mvi, i, VSR_PHY_MODE11);
mvs_write_port_vsr_data(mvi, i, 0x0e);
}
}
}
static void mvs_64xx_stp_reset(struct mvs_info *mvi, u32 phy_id)
{
void __iomem *regs = mvi->regs;
u32 reg, tmp;
if (!(mvi->flags & MVF_FLAG_SOC)) {
if (phy_id < 4)
pci_read_config_dword(mvi->pdev, PCR_PHY_CTL, &reg);
else
pci_read_config_dword(mvi->pdev, PCR_PHY_CTL2, &reg);
} else
reg = mr32(MVS_PHY_CTL);
tmp = reg;
if (phy_id < 4)
tmp |= (1U << phy_id) << PCTL_LINK_OFFS;
else
tmp |= (1U << (phy_id - 4)) << PCTL_LINK_OFFS;
if (!(mvi->flags & MVF_FLAG_SOC)) {
if (phy_id < 4) {
pci_write_config_dword(mvi->pdev, PCR_PHY_CTL, tmp);
mdelay(10);
pci_write_config_dword(mvi->pdev, PCR_PHY_CTL, reg);
} else {
pci_write_config_dword(mvi->pdev, PCR_PHY_CTL2, tmp);
mdelay(10);
pci_write_config_dword(mvi->pdev, PCR_PHY_CTL2, reg);
}
} else {
mw32(MVS_PHY_CTL, tmp);
mdelay(10);
mw32(MVS_PHY_CTL, reg);
}
}
static void mvs_64xx_phy_reset(struct mvs_info *mvi, u32 phy_id, int hard)
{
u32 tmp;
tmp = mvs_read_port_irq_stat(mvi, phy_id);
tmp &= ~PHYEV_RDY_CH;
mvs_write_port_irq_stat(mvi, phy_id, tmp);
tmp = mvs_read_phy_ctl(mvi, phy_id);
if (hard == 1)
tmp |= PHY_RST_HARD;
else if (hard == 0)
tmp |= PHY_RST;
mvs_write_phy_ctl(mvi, phy_id, tmp);
if (hard) {
do {
tmp = mvs_read_phy_ctl(mvi, phy_id);
} while (tmp & PHY_RST_HARD);
}
}
void mvs_64xx_clear_srs_irq(struct mvs_info *mvi, u8 reg_set, u8 clear_all)
{
void __iomem *regs = mvi->regs;
u32 tmp;
if (clear_all) {
tmp = mr32(MVS_INT_STAT_SRS_0);
if (tmp) {
printk(KERN_DEBUG "check SRS 0 %08X.\n", tmp);
mw32(MVS_INT_STAT_SRS_0, tmp);
}
} else {
tmp = mr32(MVS_INT_STAT_SRS_0);
if (tmp & (1 << (reg_set % 32))) {
printk(KERN_DEBUG "register set 0x%x was stopped.\n",
reg_set);
mw32(MVS_INT_STAT_SRS_0, 1 << (reg_set % 32));
}
}
}
static int __devinit mvs_64xx_chip_reset(struct mvs_info *mvi)
{
void __iomem *regs = mvi->regs;
u32 tmp;
int i;
/* make sure interrupts are masked immediately (paranoia) */
mw32(MVS_GBL_CTL, 0);
tmp = mr32(MVS_GBL_CTL);
/* Reset Controller */
if (!(tmp & HBA_RST)) {
if (mvi->flags & MVF_PHY_PWR_FIX) {
pci_read_config_dword(mvi->pdev, PCR_PHY_CTL, &tmp);
tmp &= ~PCTL_PWR_OFF;
tmp |= PCTL_PHY_DSBL;
pci_write_config_dword(mvi->pdev, PCR_PHY_CTL, tmp);
pci_read_config_dword(mvi->pdev, PCR_PHY_CTL2, &tmp);
tmp &= ~PCTL_PWR_OFF;
tmp |= PCTL_PHY_DSBL;
pci_write_config_dword(mvi->pdev, PCR_PHY_CTL2, tmp);
}
}
/* make sure interrupts are masked immediately (paranoia) */
mw32(MVS_GBL_CTL, 0);
tmp = mr32(MVS_GBL_CTL);
/* Reset Controller */
if (!(tmp & HBA_RST)) {
/* global reset, incl. COMRESET/H_RESET_N (self-clearing) */
mw32_f(MVS_GBL_CTL, HBA_RST);
}
/* wait for reset to finish; timeout is just a guess */
i = 1000;
while (i-- > 0) {
msleep(10);
if (!(mr32(MVS_GBL_CTL) & HBA_RST))
break;
}
if (mr32(MVS_GBL_CTL) & HBA_RST) {
dev_printk(KERN_ERR, mvi->dev, "HBA reset failed\n");
return -EBUSY;
}
return 0;
}
static void mvs_64xx_phy_disable(struct mvs_info *mvi, u32 phy_id)
{
void __iomem *regs = mvi->regs;
u32 tmp;
if (!(mvi->flags & MVF_FLAG_SOC)) {
u32 offs;
if (phy_id < 4)
offs = PCR_PHY_CTL;
else {
offs = PCR_PHY_CTL2;
phy_id -= 4;
}
pci_read_config_dword(mvi->pdev, offs, &tmp);
tmp |= 1U << (PCTL_PHY_DSBL_OFFS + phy_id);
pci_write_config_dword(mvi->pdev, offs, tmp);
} else {
tmp = mr32(MVS_PHY_CTL);
tmp |= 1U << (PCTL_PHY_DSBL_OFFS + phy_id);
mw32(MVS_PHY_CTL, tmp);
}
}
static void mvs_64xx_phy_enable(struct mvs_info *mvi, u32 phy_id)
{
void __iomem *regs = mvi->regs;
u32 tmp;
if (!(mvi->flags & MVF_FLAG_SOC)) {
u32 offs;
if (phy_id < 4)
offs = PCR_PHY_CTL;
else {
offs = PCR_PHY_CTL2;
phy_id -= 4;
}
pci_read_config_dword(mvi->pdev, offs, &tmp);
tmp &= ~(1U << (PCTL_PHY_DSBL_OFFS + phy_id));
pci_write_config_dword(mvi->pdev, offs, tmp);
} else {
tmp = mr32(MVS_PHY_CTL);
tmp &= ~(1U << (PCTL_PHY_DSBL_OFFS + phy_id));
mw32(MVS_PHY_CTL, tmp);
}
}
static int __devinit mvs_64xx_init(struct mvs_info *mvi)
{
void __iomem *regs = mvi->regs;
int i;
u32 tmp, cctl;
if (mvi->pdev && mvi->pdev->revision == 0)
mvi->flags |= MVF_PHY_PWR_FIX;
if (!(mvi->flags & MVF_FLAG_SOC)) {
mvs_show_pcie_usage(mvi);
tmp = mvs_64xx_chip_reset(mvi);
if (tmp)
return tmp;
} else {
tmp = mr32(MVS_PHY_CTL);
tmp &= ~PCTL_PWR_OFF;
tmp |= PCTL_PHY_DSBL;
mw32(MVS_PHY_CTL, tmp);
}
/* Init Chip */
/* make sure RST is set; HBA_RST /should/ have done that for us */
cctl = mr32(MVS_CTL) & 0xFFFF;
if (cctl & CCTL_RST)
cctl &= ~CCTL_RST;
else
mw32_f(MVS_CTL, cctl | CCTL_RST);
if (!(mvi->flags & MVF_FLAG_SOC)) {
/* write to device control _AND_ device status register */
pci_read_config_dword(mvi->pdev, PCR_DEV_CTRL, &tmp);
tmp &= ~PRD_REQ_MASK;
tmp |= PRD_REQ_SIZE;
pci_write_config_dword(mvi->pdev, PCR_DEV_CTRL, tmp);
pci_read_config_dword(mvi->pdev, PCR_PHY_CTL, &tmp);
tmp &= ~PCTL_PWR_OFF;
tmp &= ~PCTL_PHY_DSBL;
pci_write_config_dword(mvi->pdev, PCR_PHY_CTL, tmp);
pci_read_config_dword(mvi->pdev, PCR_PHY_CTL2, &tmp);
tmp &= PCTL_PWR_OFF;
tmp &= ~PCTL_PHY_DSBL;
pci_write_config_dword(mvi->pdev, PCR_PHY_CTL2, tmp);
} else {
tmp = mr32(MVS_PHY_CTL);
tmp &= ~PCTL_PWR_OFF;
tmp |= PCTL_COM_ON;
tmp &= ~PCTL_PHY_DSBL;
tmp |= PCTL_LINK_RST;
mw32(MVS_PHY_CTL, tmp);
msleep(100);
tmp &= ~PCTL_LINK_RST;
mw32(MVS_PHY_CTL, tmp);
msleep(100);
}
/* reset control */
mw32(MVS_PCS, 0); /* MVS_PCS */
/* init phys */
mvs_64xx_phy_hacks(mvi);
/* enable auto port detection */
mw32(MVS_GBL_PORT_TYPE, MODE_AUTO_DET_EN);
mw32(MVS_CMD_LIST_LO, mvi->slot_dma);
mw32(MVS_CMD_LIST_HI, (mvi->slot_dma >> 16) >> 16);
mw32(MVS_RX_FIS_LO, mvi->rx_fis_dma);
mw32(MVS_RX_FIS_HI, (mvi->rx_fis_dma >> 16) >> 16);
mw32(MVS_TX_CFG, MVS_CHIP_SLOT_SZ);
mw32(MVS_TX_LO, mvi->tx_dma);
mw32(MVS_TX_HI, (mvi->tx_dma >> 16) >> 16);
mw32(MVS_RX_CFG, MVS_RX_RING_SZ);
mw32(MVS_RX_LO, mvi->rx_dma);
mw32(MVS_RX_HI, (mvi->rx_dma >> 16) >> 16);
for (i = 0; i < mvi->chip->n_phy; i++) {
/* set phy local SAS address */
/* should set little endian SAS address to 64xx chip */
mvs_set_sas_addr(mvi, i, PHYR_ADDR_LO, PHYR_ADDR_HI,
cpu_to_be64(mvi->phy[i].dev_sas_addr));
mvs_64xx_enable_xmt(mvi, i);
mvs_64xx_phy_reset(mvi, i, 1);
msleep(500);
mvs_64xx_detect_porttype(mvi, i);
}
if (mvi->flags & MVF_FLAG_SOC) {
/* set select registers */
writel(0x0E008000, regs + 0x000);
writel(0x59000008, regs + 0x004);
writel(0x20, regs + 0x008);
writel(0x20, regs + 0x00c);
writel(0x20, regs + 0x010);
writel(0x20, regs + 0x014);
writel(0x20, regs + 0x018);
writel(0x20, regs + 0x01c);
}
for (i = 0; i < mvi->chip->n_phy; i++) {
/* clear phy int status */
tmp = mvs_read_port_irq_stat(mvi, i);
tmp &= ~PHYEV_SIG_FIS;
mvs_write_port_irq_stat(mvi, i, tmp);
/* set phy int mask */
tmp = PHYEV_RDY_CH | PHYEV_BROAD_CH | PHYEV_UNASSOC_FIS |
PHYEV_ID_DONE | PHYEV_DCDR_ERR | PHYEV_CRC_ERR |
PHYEV_DEC_ERR;
mvs_write_port_irq_mask(mvi, i, tmp);
msleep(100);
mvs_update_phyinfo(mvi, i, 1);
}
/* FIXME: update wide port bitmaps */
/* little endian for open address and command table, etc. */
/*
* it seems that ( from the spec ) turning on big-endian won't
* do us any good on big-endian machines, need further confirmation
*/
cctl = mr32(MVS_CTL);
cctl |= CCTL_ENDIAN_CMD;
cctl |= CCTL_ENDIAN_DATA;
cctl &= ~CCTL_ENDIAN_OPEN;
cctl |= CCTL_ENDIAN_RSP;
mw32_f(MVS_CTL, cctl);
/* reset CMD queue */
tmp = mr32(MVS_PCS);
tmp |= PCS_CMD_RST;
mw32(MVS_PCS, tmp);
/* interrupt coalescing may cause missing HW interrput in some case,
* and the max count is 0x1ff, while our max slot is 0x200,
* it will make count 0.
*/
tmp = 0;
mw32(MVS_INT_COAL, tmp);
tmp = 0x100;
mw32(MVS_INT_COAL_TMOUT, tmp);
/* ladies and gentlemen, start your engines */
mw32(MVS_TX_CFG, 0);
mw32(MVS_TX_CFG, MVS_CHIP_SLOT_SZ | TX_EN);
mw32(MVS_RX_CFG, MVS_RX_RING_SZ | RX_EN);
/* enable CMD/CMPL_Q/RESP mode */
mw32(MVS_PCS, PCS_SATA_RETRY | PCS_FIS_RX_EN |
PCS_CMD_EN | PCS_CMD_STOP_ERR);
/* enable completion queue interrupt */
tmp = (CINT_PORT_MASK | CINT_DONE | CINT_MEM | CINT_SRS | CINT_CI_STOP |
CINT_DMA_PCIE);
mw32(MVS_INT_MASK, tmp);
/* Enable SRS interrupt */
mw32(MVS_INT_MASK_SRS_0, 0xFFFF);
return 0;
}
static int mvs_64xx_ioremap(struct mvs_info *mvi)
{
if (!mvs_ioremap(mvi, 4, 2))
return 0;
return -1;
}
static void mvs_64xx_iounmap(struct mvs_info *mvi)
{
mvs_iounmap(mvi->regs);
mvs_iounmap(mvi->regs_ex);
}
static void mvs_64xx_interrupt_enable(struct mvs_info *mvi)
{
void __iomem *regs = mvi->regs;
u32 tmp;
tmp = mr32(MVS_GBL_CTL);
mw32(MVS_GBL_CTL, tmp | INT_EN);
}
static void mvs_64xx_interrupt_disable(struct mvs_info *mvi)
{
void __iomem *regs = mvi->regs;
u32 tmp;
tmp = mr32(MVS_GBL_CTL);
mw32(MVS_GBL_CTL, tmp & ~INT_EN);
}
static u32 mvs_64xx_isr_status(struct mvs_info *mvi, int irq)
{
void __iomem *regs = mvi->regs;
u32 stat;
if (!(mvi->flags & MVF_FLAG_SOC)) {
stat = mr32(MVS_GBL_INT_STAT);
if (stat == 0 || stat == 0xffffffff)
return 0;
} else
stat = 1;
return stat;
}
static irqreturn_t mvs_64xx_isr(struct mvs_info *mvi, int irq, u32 stat)
{
void __iomem *regs = mvi->regs;
/* clear CMD_CMPLT ASAP */
mw32_f(MVS_INT_STAT, CINT_DONE);
#ifndef MVS_USE_TASKLET
spin_lock(&mvi->lock);
#endif
mvs_int_full(mvi);
#ifndef MVS_USE_TASKLET
spin_unlock(&mvi->lock);
#endif
return IRQ_HANDLED;
}
static void mvs_64xx_command_active(struct mvs_info *mvi, u32 slot_idx)
{
u32 tmp;
mvs_cw32(mvi, 0x40 + (slot_idx >> 3), 1 << (slot_idx % 32));
mvs_cw32(mvi, 0x00 + (slot_idx >> 3), 1 << (slot_idx % 32));
do {
tmp = mvs_cr32(mvi, 0x00 + (slot_idx >> 3));
} while (tmp & 1 << (slot_idx % 32));
do {
tmp = mvs_cr32(mvi, 0x40 + (slot_idx >> 3));
} while (tmp & 1 << (slot_idx % 32));
}
static void mvs_64xx_issue_stop(struct mvs_info *mvi, enum mvs_port_type type,
u32 tfs)
{
void __iomem *regs = mvi->regs;
u32 tmp;
if (type == PORT_TYPE_SATA) {
tmp = mr32(MVS_INT_STAT_SRS_0) | (1U << tfs);
mw32(MVS_INT_STAT_SRS_0, tmp);
}
mw32(MVS_INT_STAT, CINT_CI_STOP);
tmp = mr32(MVS_PCS) | 0xFF00;
mw32(MVS_PCS, tmp);
}
static void mvs_64xx_free_reg_set(struct mvs_info *mvi, u8 *tfs)
{
void __iomem *regs = mvi->regs;
u32 tmp, offs;
if (*tfs == MVS_ID_NOT_MAPPED)
return;
offs = 1U << ((*tfs & 0x0f) + PCS_EN_SATA_REG_SHIFT);
if (*tfs < 16) {
tmp = mr32(MVS_PCS);
mw32(MVS_PCS, tmp & ~offs);
} else {
tmp = mr32(MVS_CTL);
mw32(MVS_CTL, tmp & ~offs);
}
tmp = mr32(MVS_INT_STAT_SRS_0) & (1U << *tfs);
if (tmp)
mw32(MVS_INT_STAT_SRS_0, tmp);
*tfs = MVS_ID_NOT_MAPPED;
return;
}
static u8 mvs_64xx_assign_reg_set(struct mvs_info *mvi, u8 *tfs)
{
int i;
u32 tmp, offs;
void __iomem *regs = mvi->regs;
if (*tfs != MVS_ID_NOT_MAPPED)
return 0;
tmp = mr32(MVS_PCS);
for (i = 0; i < mvi->chip->srs_sz; i++) {
if (i == 16)
tmp = mr32(MVS_CTL);
offs = 1U << ((i & 0x0f) + PCS_EN_SATA_REG_SHIFT);
if (!(tmp & offs)) {
*tfs = i;
if (i < 16)
mw32(MVS_PCS, tmp | offs);
else
mw32(MVS_CTL, tmp | offs);
tmp = mr32(MVS_INT_STAT_SRS_0) & (1U << i);
if (tmp)
mw32(MVS_INT_STAT_SRS_0, tmp);
return 0;
}
}
return MVS_ID_NOT_MAPPED;
}
void mvs_64xx_make_prd(struct scatterlist *scatter, int nr, void *prd)
{
int i;
struct scatterlist *sg;
struct mvs_prd *buf_prd = prd;
for_each_sg(scatter, sg, nr, i) {
buf_prd->addr = cpu_to_le64(sg_dma_address(sg));
buf_prd->len = cpu_to_le32(sg_dma_len(sg));
buf_prd++;
}
}
static int mvs_64xx_oob_done(struct mvs_info *mvi, int i)
{
u32 phy_st;
mvs_write_port_cfg_addr(mvi, i,
PHYR_PHY_STAT);
phy_st = mvs_read_port_cfg_data(mvi, i);
if (phy_st & PHY_OOB_DTCTD)
return 1;
return 0;
}
static void mvs_64xx_fix_phy_info(struct mvs_info *mvi, int i,
struct sas_identify_frame *id)
{
struct mvs_phy *phy = &mvi->phy[i];
struct asd_sas_phy *sas_phy = &phy->sas_phy;
sas_phy->linkrate =
(phy->phy_status & PHY_NEG_SPP_PHYS_LINK_RATE_MASK) >>
PHY_NEG_SPP_PHYS_LINK_RATE_MASK_OFFSET;
phy->minimum_linkrate =
(phy->phy_status &
PHY_MIN_SPP_PHYS_LINK_RATE_MASK) >> 8;
phy->maximum_linkrate =
(phy->phy_status &
PHY_MAX_SPP_PHYS_LINK_RATE_MASK) >> 12;
mvs_write_port_cfg_addr(mvi, i, PHYR_IDENTIFY);
phy->dev_info = mvs_read_port_cfg_data(mvi, i);
mvs_write_port_cfg_addr(mvi, i, PHYR_ATT_DEV_INFO);
phy->att_dev_info = mvs_read_port_cfg_data(mvi, i);
mvs_write_port_cfg_addr(mvi, i, PHYR_ATT_ADDR_HI);
phy->att_dev_sas_addr =
(u64) mvs_read_port_cfg_data(mvi, i) << 32;
mvs_write_port_cfg_addr(mvi, i, PHYR_ATT_ADDR_LO);
phy->att_dev_sas_addr |= mvs_read_port_cfg_data(mvi, i);
phy->att_dev_sas_addr = SAS_ADDR(&phy->att_dev_sas_addr);
}
static void mvs_64xx_phy_work_around(struct mvs_info *mvi, int i)
{
u32 tmp;
struct mvs_phy *phy = &mvi->phy[i];
/* workaround for HW phy decoding error on 1.5g disk drive */
mvs_write_port_vsr_addr(mvi, i, VSR_PHY_MODE6);
tmp = mvs_read_port_vsr_data(mvi, i);
if (((phy->phy_status & PHY_NEG_SPP_PHYS_LINK_RATE_MASK) >>
PHY_NEG_SPP_PHYS_LINK_RATE_MASK_OFFSET) ==
SAS_LINK_RATE_1_5_GBPS)
tmp &= ~PHY_MODE6_LATECLK;
else
tmp |= PHY_MODE6_LATECLK;
mvs_write_port_vsr_data(mvi, i, tmp);
}
void mvs_64xx_phy_set_link_rate(struct mvs_info *mvi, u32 phy_id,
struct sas_phy_linkrates *rates)
{
u32 lrmin = 0, lrmax = 0;
u32 tmp;
tmp = mvs_read_phy_ctl(mvi, phy_id);
lrmin = (rates->minimum_linkrate << 8);
lrmax = (rates->maximum_linkrate << 12);
if (lrmin) {
tmp &= ~(0xf << 8);
tmp |= lrmin;
}
if (lrmax) {
tmp &= ~(0xf << 12);
tmp |= lrmax;
}
mvs_write_phy_ctl(mvi, phy_id, tmp);
mvs_64xx_phy_reset(mvi, phy_id, 1);
}
static void mvs_64xx_clear_active_cmds(struct mvs_info *mvi)
{
u32 tmp;
void __iomem *regs = mvi->regs;
tmp = mr32(MVS_PCS);
mw32(MVS_PCS, tmp & 0xFFFF);
mw32(MVS_PCS, tmp);
tmp = mr32(MVS_CTL);
mw32(MVS_CTL, tmp & 0xFFFF);
mw32(MVS_CTL, tmp);
}
u32 mvs_64xx_spi_read_data(struct mvs_info *mvi)
{
void __iomem *regs = mvi->regs_ex;
return ior32(SPI_DATA_REG_64XX);
}
void mvs_64xx_spi_write_data(struct mvs_info *mvi, u32 data)
{
void __iomem *regs = mvi->regs_ex;
iow32(SPI_DATA_REG_64XX, data);
}
int mvs_64xx_spi_buildcmd(struct mvs_info *mvi,
u32 *dwCmd,
u8 cmd,
u8 read,
u8 length,
u32 addr
)
{
u32 dwTmp;
dwTmp = ((u32)cmd << 24) | ((u32)length << 19);
if (read)
dwTmp |= 1U<<23;
if (addr != MV_MAX_U32) {
dwTmp |= 1U<<22;
dwTmp |= (addr & 0x0003FFFF);
}
*dwCmd = dwTmp;
return 0;
}
int mvs_64xx_spi_issuecmd(struct mvs_info *mvi, u32 cmd)
{
void __iomem *regs = mvi->regs_ex;
int retry;
for (retry = 0; retry < 1; retry++) {
iow32(SPI_CTRL_REG_64XX, SPI_CTRL_VENDOR_ENABLE);
iow32(SPI_CMD_REG_64XX, cmd);
iow32(SPI_CTRL_REG_64XX,
SPI_CTRL_VENDOR_ENABLE | SPI_CTRL_SPISTART);
}
return 0;
}
int mvs_64xx_spi_waitdataready(struct mvs_info *mvi, u32 timeout)
{
void __iomem *regs = mvi->regs_ex;
u32 i, dwTmp;
for (i = 0; i < timeout; i++) {
dwTmp = ior32(SPI_CTRL_REG_64XX);
if (!(dwTmp & SPI_CTRL_SPISTART))
return 0;
msleep(10);
}
return -1;
}
#ifndef DISABLE_HOTPLUG_DMA_FIX
void mvs_64xx_fix_dma(dma_addr_t buf_dma, int buf_len, int from, void *prd)
{
int i;
struct mvs_prd *buf_prd = prd;
buf_prd += from;
for (i = 0; i < MAX_SG_ENTRY - from; i++) {
buf_prd->addr = cpu_to_le64(buf_dma);
buf_prd->len = cpu_to_le32(buf_len);
++buf_prd;
}
}
#endif
const struct mvs_dispatch mvs_64xx_dispatch = {
"mv64xx",
mvs_64xx_init,
NULL,
mvs_64xx_ioremap,
mvs_64xx_iounmap,
mvs_64xx_isr,
mvs_64xx_isr_status,
mvs_64xx_interrupt_enable,
mvs_64xx_interrupt_disable,
mvs_read_phy_ctl,
mvs_write_phy_ctl,
mvs_read_port_cfg_data,
mvs_write_port_cfg_data,
mvs_write_port_cfg_addr,
mvs_read_port_vsr_data,
mvs_write_port_vsr_data,
mvs_write_port_vsr_addr,
mvs_read_port_irq_stat,
mvs_write_port_irq_stat,
mvs_read_port_irq_mask,
mvs_write_port_irq_mask,
mvs_get_sas_addr,
mvs_64xx_command_active,
mvs_64xx_clear_srs_irq,
mvs_64xx_issue_stop,
mvs_start_delivery,
mvs_rx_update,
mvs_int_full,
mvs_64xx_assign_reg_set,
mvs_64xx_free_reg_set,
mvs_get_prd_size,
mvs_get_prd_count,
mvs_64xx_make_prd,
mvs_64xx_detect_porttype,
mvs_64xx_oob_done,
mvs_64xx_fix_phy_info,
mvs_64xx_phy_work_around,
mvs_64xx_phy_set_link_rate,
mvs_hw_max_link_rate,
mvs_64xx_phy_disable,
mvs_64xx_phy_enable,
mvs_64xx_phy_reset,
mvs_64xx_stp_reset,
mvs_64xx_clear_active_cmds,
mvs_64xx_spi_read_data,
mvs_64xx_spi_write_data,
mvs_64xx_spi_buildcmd,
mvs_64xx_spi_issuecmd,
mvs_64xx_spi_waitdataready,
#ifndef DISABLE_HOTPLUG_DMA_FIX
mvs_64xx_fix_dma,
#endif
};
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