mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-28 11:49:32 +00:00
![Hannes Reinecke](/assets/img/avatar_default.png)
Convert pr_XXX() calls to structured logging. Signed-off-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
628 lines
16 KiB
C
628 lines
16 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
|
|
/*
|
|
* Libata driver for the HighPoint 371N, 372N, and 302N UDMA66 ATA controllers.
|
|
*
|
|
* This driver is heavily based upon:
|
|
*
|
|
* linux/drivers/ide/pci/hpt366.c Version 0.36 April 25, 2003
|
|
*
|
|
* Copyright (C) 1999-2003 Andre Hedrick <andre@linux-ide.org>
|
|
* Portions Copyright (C) 2001 Sun Microsystems, Inc.
|
|
* Portions Copyright (C) 2003 Red Hat Inc
|
|
* Portions Copyright (C) 2005-2010 MontaVista Software, Inc.
|
|
*
|
|
*
|
|
* TODO
|
|
* Work out best PLL policy
|
|
*/
|
|
#include <linux/kernel.h>
|
|
#include <linux/module.h>
|
|
#include <linux/pci.h>
|
|
#include <linux/blkdev.h>
|
|
#include <linux/delay.h>
|
|
#include <scsi/scsi_host.h>
|
|
#include <linux/libata.h>
|
|
|
|
#define DRV_NAME "pata_hpt3x2n"
|
|
#define DRV_VERSION "0.3.15"
|
|
|
|
enum {
|
|
HPT_PCI_FAST = (1 << 31),
|
|
PCI66 = (1 << 1),
|
|
USE_DPLL = (1 << 0)
|
|
};
|
|
|
|
struct hpt_clock {
|
|
u8 xfer_speed;
|
|
u32 timing;
|
|
};
|
|
|
|
struct hpt_chip {
|
|
const char *name;
|
|
struct hpt_clock *clocks[3];
|
|
};
|
|
|
|
/* key for bus clock timings
|
|
* bit
|
|
* 0:3 data_high_time. Inactive time of DIOW_/DIOR_ for PIO and MW DMA.
|
|
* cycles = value + 1
|
|
* 4:8 data_low_time. Active time of DIOW_/DIOR_ for PIO and MW DMA.
|
|
* cycles = value + 1
|
|
* 9:12 cmd_high_time. Inactive time of DIOW_/DIOR_ during task file
|
|
* register access.
|
|
* 13:17 cmd_low_time. Active time of DIOW_/DIOR_ during task file
|
|
* register access.
|
|
* 18:20 udma_cycle_time. Clock cycles for UDMA xfer.
|
|
* 21 CLK frequency for UDMA: 0=ATA clock, 1=dual ATA clock.
|
|
* 22:24 pre_high_time. Time to initialize 1st cycle for PIO and MW DMA xfer.
|
|
* 25:27 cmd_pre_high_time. Time to initialize 1st PIO cycle for task file
|
|
* register access.
|
|
* 28 UDMA enable.
|
|
* 29 DMA enable.
|
|
* 30 PIO_MST enable. If set, the chip is in bus master mode during
|
|
* PIO xfer.
|
|
* 31 FIFO enable. Only for PIO.
|
|
*/
|
|
|
|
/* 66MHz DPLL clocks */
|
|
|
|
static struct hpt_clock hpt3x2n_clocks[] = {
|
|
{ XFER_UDMA_7, 0x1c869c62 },
|
|
{ XFER_UDMA_6, 0x1c869c62 },
|
|
{ XFER_UDMA_5, 0x1c8a9c62 },
|
|
{ XFER_UDMA_4, 0x1c8a9c62 },
|
|
{ XFER_UDMA_3, 0x1c8e9c62 },
|
|
{ XFER_UDMA_2, 0x1c929c62 },
|
|
{ XFER_UDMA_1, 0x1c9a9c62 },
|
|
{ XFER_UDMA_0, 0x1c829c62 },
|
|
|
|
{ XFER_MW_DMA_2, 0x2c829c62 },
|
|
{ XFER_MW_DMA_1, 0x2c829c66 },
|
|
{ XFER_MW_DMA_0, 0x2c829d2e },
|
|
|
|
{ XFER_PIO_4, 0x0c829c62 },
|
|
{ XFER_PIO_3, 0x0c829c84 },
|
|
{ XFER_PIO_2, 0x0c829ca6 },
|
|
{ XFER_PIO_1, 0x0d029d26 },
|
|
{ XFER_PIO_0, 0x0d029d5e },
|
|
};
|
|
|
|
/**
|
|
* hpt3x2n_find_mode - reset the hpt3x2n bus
|
|
* @ap: ATA port
|
|
* @speed: transfer mode
|
|
*
|
|
* Return the 32bit register programming information for this channel
|
|
* that matches the speed provided. For the moment the clocks table
|
|
* is hard coded but easy to change. This will be needed if we use
|
|
* different DPLLs
|
|
*/
|
|
|
|
static u32 hpt3x2n_find_mode(struct ata_port *ap, int speed)
|
|
{
|
|
struct hpt_clock *clocks = hpt3x2n_clocks;
|
|
|
|
while (clocks->xfer_speed) {
|
|
if (clocks->xfer_speed == speed)
|
|
return clocks->timing;
|
|
clocks++;
|
|
}
|
|
BUG();
|
|
return 0xffffffffU; /* silence compiler warning */
|
|
}
|
|
|
|
/**
|
|
* hpt372n_filter - mode selection filter
|
|
* @adev: ATA device
|
|
* @mask: mode mask
|
|
*
|
|
* The Marvell bridge chips used on the HighPoint SATA cards do not seem
|
|
* to support the UltraDMA modes 1, 2, and 3 as well as any MWDMA modes...
|
|
*/
|
|
static unsigned long hpt372n_filter(struct ata_device *adev, unsigned long mask)
|
|
{
|
|
if (ata_id_is_sata(adev->id))
|
|
mask &= ~((0xE << ATA_SHIFT_UDMA) | ATA_MASK_MWDMA);
|
|
|
|
return mask;
|
|
}
|
|
|
|
/**
|
|
* hpt3x2n_cable_detect - Detect the cable type
|
|
* @ap: ATA port to detect on
|
|
*
|
|
* Return the cable type attached to this port
|
|
*/
|
|
|
|
static int hpt3x2n_cable_detect(struct ata_port *ap)
|
|
{
|
|
u8 scr2, ata66;
|
|
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
|
|
|
|
pci_read_config_byte(pdev, 0x5B, &scr2);
|
|
pci_write_config_byte(pdev, 0x5B, scr2 & ~0x01);
|
|
|
|
udelay(10); /* debounce */
|
|
|
|
/* Cable register now active */
|
|
pci_read_config_byte(pdev, 0x5A, &ata66);
|
|
/* Restore state */
|
|
pci_write_config_byte(pdev, 0x5B, scr2);
|
|
|
|
if (ata66 & (2 >> ap->port_no))
|
|
return ATA_CBL_PATA40;
|
|
else
|
|
return ATA_CBL_PATA80;
|
|
}
|
|
|
|
/**
|
|
* hpt3x2n_pre_reset - reset the hpt3x2n bus
|
|
* @link: ATA link to reset
|
|
* @deadline: deadline jiffies for the operation
|
|
*
|
|
* Perform the initial reset handling for the 3x2n series controllers.
|
|
* Reset the hardware and state machine,
|
|
*/
|
|
|
|
static int hpt3x2n_pre_reset(struct ata_link *link, unsigned long deadline)
|
|
{
|
|
struct ata_port *ap = link->ap;
|
|
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
|
|
|
|
/* Reset the state machine */
|
|
pci_write_config_byte(pdev, 0x50 + 4 * ap->port_no, 0x37);
|
|
udelay(100);
|
|
|
|
return ata_sff_prereset(link, deadline);
|
|
}
|
|
|
|
static void hpt3x2n_set_mode(struct ata_port *ap, struct ata_device *adev,
|
|
u8 mode)
|
|
{
|
|
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
|
|
u32 addr1, addr2;
|
|
u32 reg, timing, mask;
|
|
u8 fast;
|
|
|
|
addr1 = 0x40 + 4 * (adev->devno + 2 * ap->port_no);
|
|
addr2 = 0x51 + 4 * ap->port_no;
|
|
|
|
/* Fast interrupt prediction disable, hold off interrupt disable */
|
|
pci_read_config_byte(pdev, addr2, &fast);
|
|
fast &= ~0x07;
|
|
pci_write_config_byte(pdev, addr2, fast);
|
|
|
|
/* Determine timing mask and find matching mode entry */
|
|
if (mode < XFER_MW_DMA_0)
|
|
mask = 0xcfc3ffff;
|
|
else if (mode < XFER_UDMA_0)
|
|
mask = 0x31c001ff;
|
|
else
|
|
mask = 0x303c0000;
|
|
|
|
timing = hpt3x2n_find_mode(ap, mode);
|
|
|
|
pci_read_config_dword(pdev, addr1, ®);
|
|
reg = (reg & ~mask) | (timing & mask);
|
|
pci_write_config_dword(pdev, addr1, reg);
|
|
}
|
|
|
|
/**
|
|
* hpt3x2n_set_piomode - PIO setup
|
|
* @ap: ATA interface
|
|
* @adev: device on the interface
|
|
*
|
|
* Perform PIO mode setup.
|
|
*/
|
|
|
|
static void hpt3x2n_set_piomode(struct ata_port *ap, struct ata_device *adev)
|
|
{
|
|
hpt3x2n_set_mode(ap, adev, adev->pio_mode);
|
|
}
|
|
|
|
/**
|
|
* hpt3x2n_set_dmamode - DMA timing setup
|
|
* @ap: ATA interface
|
|
* @adev: Device being configured
|
|
*
|
|
* Set up the channel for MWDMA or UDMA modes.
|
|
*/
|
|
|
|
static void hpt3x2n_set_dmamode(struct ata_port *ap, struct ata_device *adev)
|
|
{
|
|
hpt3x2n_set_mode(ap, adev, adev->dma_mode);
|
|
}
|
|
|
|
/**
|
|
* hpt3x2n_bmdma_stop - DMA engine stop
|
|
* @qc: ATA command
|
|
*
|
|
* Clean up after the HPT3x2n and later DMA engine
|
|
*/
|
|
|
|
static void hpt3x2n_bmdma_stop(struct ata_queued_cmd *qc)
|
|
{
|
|
struct ata_port *ap = qc->ap;
|
|
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
|
|
int mscreg = 0x50 + 2 * ap->port_no;
|
|
u8 bwsr_stat, msc_stat;
|
|
|
|
pci_read_config_byte(pdev, 0x6A, &bwsr_stat);
|
|
pci_read_config_byte(pdev, mscreg, &msc_stat);
|
|
if (bwsr_stat & (1 << ap->port_no))
|
|
pci_write_config_byte(pdev, mscreg, msc_stat | 0x30);
|
|
ata_bmdma_stop(qc);
|
|
}
|
|
|
|
/**
|
|
* hpt3x2n_set_clock - clock control
|
|
* @ap: ATA port
|
|
* @source: 0x21 or 0x23 for PLL or PCI sourced clock
|
|
*
|
|
* Switch the ATA bus clock between the PLL and PCI clock sources
|
|
* while correctly isolating the bus and resetting internal logic
|
|
*
|
|
* We must use the DPLL for
|
|
* - writing
|
|
* - second channel UDMA7 (SATA ports) or higher
|
|
* - 66MHz PCI
|
|
*
|
|
* or we will underclock the device and get reduced performance.
|
|
*/
|
|
|
|
static void hpt3x2n_set_clock(struct ata_port *ap, int source)
|
|
{
|
|
void __iomem *bmdma = ap->ioaddr.bmdma_addr - ap->port_no * 8;
|
|
|
|
/* Tristate the bus */
|
|
iowrite8(0x80, bmdma+0x73);
|
|
iowrite8(0x80, bmdma+0x77);
|
|
|
|
/* Switch clock and reset channels */
|
|
iowrite8(source, bmdma+0x7B);
|
|
iowrite8(0xC0, bmdma+0x79);
|
|
|
|
/* Reset state machines, avoid enabling the disabled channels */
|
|
iowrite8(ioread8(bmdma+0x70) | 0x32, bmdma+0x70);
|
|
iowrite8(ioread8(bmdma+0x74) | 0x32, bmdma+0x74);
|
|
|
|
/* Complete reset */
|
|
iowrite8(0x00, bmdma+0x79);
|
|
|
|
/* Reconnect channels to bus */
|
|
iowrite8(0x00, bmdma+0x73);
|
|
iowrite8(0x00, bmdma+0x77);
|
|
}
|
|
|
|
static int hpt3x2n_use_dpll(struct ata_port *ap, int writing)
|
|
{
|
|
long flags = (long)ap->host->private_data;
|
|
|
|
/* See if we should use the DPLL */
|
|
if (writing)
|
|
return USE_DPLL; /* Needed for write */
|
|
if (flags & PCI66)
|
|
return USE_DPLL; /* Needed at 66Mhz */
|
|
return 0;
|
|
}
|
|
|
|
static int hpt3x2n_qc_defer(struct ata_queued_cmd *qc)
|
|
{
|
|
struct ata_port *ap = qc->ap;
|
|
struct ata_port *alt = ap->host->ports[ap->port_no ^ 1];
|
|
int rc, flags = (long)ap->host->private_data;
|
|
int dpll = hpt3x2n_use_dpll(ap, qc->tf.flags & ATA_TFLAG_WRITE);
|
|
|
|
/* First apply the usual rules */
|
|
rc = ata_std_qc_defer(qc);
|
|
if (rc != 0)
|
|
return rc;
|
|
|
|
if ((flags & USE_DPLL) != dpll && alt->qc_active)
|
|
return ATA_DEFER_PORT;
|
|
return 0;
|
|
}
|
|
|
|
static unsigned int hpt3x2n_qc_issue(struct ata_queued_cmd *qc)
|
|
{
|
|
struct ata_port *ap = qc->ap;
|
|
int flags = (long)ap->host->private_data;
|
|
int dpll = hpt3x2n_use_dpll(ap, qc->tf.flags & ATA_TFLAG_WRITE);
|
|
|
|
if ((flags & USE_DPLL) != dpll) {
|
|
flags &= ~USE_DPLL;
|
|
flags |= dpll;
|
|
ap->host->private_data = (void *)(long)flags;
|
|
|
|
hpt3x2n_set_clock(ap, dpll ? 0x21 : 0x23);
|
|
}
|
|
return ata_bmdma_qc_issue(qc);
|
|
}
|
|
|
|
static struct scsi_host_template hpt3x2n_sht = {
|
|
ATA_BMDMA_SHT(DRV_NAME),
|
|
};
|
|
|
|
/*
|
|
* Configuration for HPT302N/371N.
|
|
*/
|
|
|
|
static struct ata_port_operations hpt3xxn_port_ops = {
|
|
.inherits = &ata_bmdma_port_ops,
|
|
|
|
.bmdma_stop = hpt3x2n_bmdma_stop,
|
|
|
|
.qc_defer = hpt3x2n_qc_defer,
|
|
.qc_issue = hpt3x2n_qc_issue,
|
|
|
|
.cable_detect = hpt3x2n_cable_detect,
|
|
.set_piomode = hpt3x2n_set_piomode,
|
|
.set_dmamode = hpt3x2n_set_dmamode,
|
|
.prereset = hpt3x2n_pre_reset,
|
|
};
|
|
|
|
/*
|
|
* Configuration for HPT372N. Same as 302N/371N but we have a mode filter.
|
|
*/
|
|
|
|
static struct ata_port_operations hpt372n_port_ops = {
|
|
.inherits = &hpt3xxn_port_ops,
|
|
.mode_filter = &hpt372n_filter,
|
|
};
|
|
|
|
/**
|
|
* hpt3xn_calibrate_dpll - Calibrate the DPLL loop
|
|
* @dev: PCI device
|
|
*
|
|
* Perform a calibration cycle on the HPT3xN DPLL. Returns 1 if this
|
|
* succeeds
|
|
*/
|
|
|
|
static int hpt3xn_calibrate_dpll(struct pci_dev *dev)
|
|
{
|
|
u8 reg5b;
|
|
u32 reg5c;
|
|
int tries;
|
|
|
|
for (tries = 0; tries < 0x5000; tries++) {
|
|
udelay(50);
|
|
pci_read_config_byte(dev, 0x5b, ®5b);
|
|
if (reg5b & 0x80) {
|
|
/* See if it stays set */
|
|
for (tries = 0; tries < 0x1000; tries++) {
|
|
pci_read_config_byte(dev, 0x5b, ®5b);
|
|
/* Failed ? */
|
|
if ((reg5b & 0x80) == 0)
|
|
return 0;
|
|
}
|
|
/* Turn off tuning, we have the DPLL set */
|
|
pci_read_config_dword(dev, 0x5c, ®5c);
|
|
pci_write_config_dword(dev, 0x5c, reg5c & ~0x100);
|
|
return 1;
|
|
}
|
|
}
|
|
/* Never went stable */
|
|
return 0;
|
|
}
|
|
|
|
static int hpt3x2n_pci_clock(struct pci_dev *pdev)
|
|
{
|
|
unsigned long freq;
|
|
u32 fcnt;
|
|
unsigned long iobase = pci_resource_start(pdev, 4);
|
|
|
|
fcnt = inl(iobase + 0x90); /* Not PCI readable for some chips */
|
|
if ((fcnt >> 12) != 0xABCDE) {
|
|
int i;
|
|
u16 sr;
|
|
u32 total = 0;
|
|
|
|
dev_warn(&pdev->dev, "BIOS clock data not set\n");
|
|
|
|
/* This is the process the HPT371 BIOS is reported to use */
|
|
for (i = 0; i < 128; i++) {
|
|
pci_read_config_word(pdev, 0x78, &sr);
|
|
total += sr & 0x1FF;
|
|
udelay(15);
|
|
}
|
|
fcnt = total / 128;
|
|
}
|
|
fcnt &= 0x1FF;
|
|
|
|
freq = (fcnt * 77) / 192;
|
|
|
|
/* Clamp to bands */
|
|
if (freq < 40)
|
|
return 33;
|
|
if (freq < 45)
|
|
return 40;
|
|
if (freq < 55)
|
|
return 50;
|
|
return 66;
|
|
}
|
|
|
|
/**
|
|
* hpt3x2n_init_one - Initialise an HPT37X/302
|
|
* @dev: PCI device
|
|
* @id: Entry in match table
|
|
*
|
|
* Initialise an HPT3x2n device. There are some interesting complications
|
|
* here. Firstly the chip may report 366 and be one of several variants.
|
|
* Secondly all the timings depend on the clock for the chip which we must
|
|
* detect and look up
|
|
*
|
|
* This is the known chip mappings. It may be missing a couple of later
|
|
* releases.
|
|
*
|
|
* Chip version PCI Rev Notes
|
|
* HPT372 4 (HPT366) 5 Other driver
|
|
* HPT372N 4 (HPT366) 6 UDMA133
|
|
* HPT372 5 (HPT372) 1 Other driver
|
|
* HPT372N 5 (HPT372) 2 UDMA133
|
|
* HPT302 6 (HPT302) * Other driver
|
|
* HPT302N 6 (HPT302) > 1 UDMA133
|
|
* HPT371 7 (HPT371) * Other driver
|
|
* HPT371N 7 (HPT371) > 1 UDMA133
|
|
* HPT374 8 (HPT374) * Other driver
|
|
* HPT372N 9 (HPT372N) * UDMA133
|
|
*
|
|
* (1) UDMA133 support depends on the bus clock
|
|
*/
|
|
|
|
static int hpt3x2n_init_one(struct pci_dev *dev, const struct pci_device_id *id)
|
|
{
|
|
/* HPT372N - UDMA133 */
|
|
static const struct ata_port_info info_hpt372n = {
|
|
.flags = ATA_FLAG_SLAVE_POSS,
|
|
.pio_mask = ATA_PIO4,
|
|
.mwdma_mask = ATA_MWDMA2,
|
|
.udma_mask = ATA_UDMA6,
|
|
.port_ops = &hpt372n_port_ops
|
|
};
|
|
/* HPT302N and HPT371N - UDMA133 */
|
|
static const struct ata_port_info info_hpt3xxn = {
|
|
.flags = ATA_FLAG_SLAVE_POSS,
|
|
.pio_mask = ATA_PIO4,
|
|
.mwdma_mask = ATA_MWDMA2,
|
|
.udma_mask = ATA_UDMA6,
|
|
.port_ops = &hpt3xxn_port_ops
|
|
};
|
|
const struct ata_port_info *ppi[] = { &info_hpt3xxn, NULL };
|
|
u8 rev = dev->revision;
|
|
u8 irqmask;
|
|
unsigned int pci_mhz;
|
|
unsigned int f_low, f_high;
|
|
int adjust;
|
|
unsigned long iobase = pci_resource_start(dev, 4);
|
|
void *hpriv = (void *)USE_DPLL;
|
|
int rc;
|
|
|
|
rc = pcim_enable_device(dev);
|
|
if (rc)
|
|
return rc;
|
|
|
|
switch (dev->device) {
|
|
case PCI_DEVICE_ID_TTI_HPT366:
|
|
/* 372N if rev >= 6 */
|
|
if (rev < 6)
|
|
return -ENODEV;
|
|
goto hpt372n;
|
|
case PCI_DEVICE_ID_TTI_HPT371:
|
|
/* 371N if rev >= 2 */
|
|
if (rev < 2)
|
|
return -ENODEV;
|
|
break;
|
|
case PCI_DEVICE_ID_TTI_HPT372:
|
|
/* 372N if rev >= 2 */
|
|
if (rev < 2)
|
|
return -ENODEV;
|
|
goto hpt372n;
|
|
case PCI_DEVICE_ID_TTI_HPT302:
|
|
/* 302N if rev >= 2 */
|
|
if (rev < 2)
|
|
return -ENODEV;
|
|
break;
|
|
case PCI_DEVICE_ID_TTI_HPT372N:
|
|
hpt372n:
|
|
ppi[0] = &info_hpt372n;
|
|
break;
|
|
default:
|
|
dev_err(&dev->dev,"PCI table is bogus, please report (%d)\n",
|
|
dev->device);
|
|
return -ENODEV;
|
|
}
|
|
|
|
/* Ok so this is a chip we support */
|
|
|
|
pci_write_config_byte(dev, PCI_CACHE_LINE_SIZE, (L1_CACHE_BYTES / 4));
|
|
pci_write_config_byte(dev, PCI_LATENCY_TIMER, 0x78);
|
|
pci_write_config_byte(dev, PCI_MIN_GNT, 0x08);
|
|
pci_write_config_byte(dev, PCI_MAX_LAT, 0x08);
|
|
|
|
pci_read_config_byte(dev, 0x5A, &irqmask);
|
|
irqmask &= ~0x10;
|
|
pci_write_config_byte(dev, 0x5a, irqmask);
|
|
|
|
/*
|
|
* HPT371 chips physically have only one channel, the secondary one,
|
|
* but the primary channel registers do exist! Go figure...
|
|
* So, we manually disable the non-existing channel here
|
|
* (if the BIOS hasn't done this already).
|
|
*/
|
|
if (dev->device == PCI_DEVICE_ID_TTI_HPT371) {
|
|
u8 mcr1;
|
|
pci_read_config_byte(dev, 0x50, &mcr1);
|
|
mcr1 &= ~0x04;
|
|
pci_write_config_byte(dev, 0x50, mcr1);
|
|
}
|
|
|
|
/*
|
|
* Tune the PLL. HPT recommend using 75 for SATA, 66 for UDMA133 or
|
|
* 50 for UDMA100. Right now we always use 66
|
|
*/
|
|
|
|
pci_mhz = hpt3x2n_pci_clock(dev);
|
|
|
|
f_low = (pci_mhz * 48) / 66; /* PCI Mhz for 66Mhz DPLL */
|
|
f_high = f_low + 2; /* Tolerance */
|
|
|
|
pci_write_config_dword(dev, 0x5C, (f_high << 16) | f_low | 0x100);
|
|
/* PLL clock */
|
|
pci_write_config_byte(dev, 0x5B, 0x21);
|
|
|
|
/* Unlike the 37x we don't try jiggling the frequency */
|
|
for (adjust = 0; adjust < 8; adjust++) {
|
|
if (hpt3xn_calibrate_dpll(dev))
|
|
break;
|
|
pci_write_config_dword(dev, 0x5C, (f_high << 16) | f_low);
|
|
}
|
|
if (adjust == 8) {
|
|
dev_err(&dev->dev, "DPLL did not stabilize!\n");
|
|
return -ENODEV;
|
|
}
|
|
|
|
dev_info(&dev->dev, "bus clock %dMHz, using 66MHz DPLL\n", pci_mhz);
|
|
|
|
/*
|
|
* Set our private data up. We only need a few flags
|
|
* so we use it directly.
|
|
*/
|
|
if (pci_mhz > 60)
|
|
hpriv = (void *)(PCI66 | USE_DPLL);
|
|
|
|
/*
|
|
* On HPT371N, if ATA clock is 66 MHz we must set bit 2 in
|
|
* the MISC. register to stretch the UltraDMA Tss timing.
|
|
* NOTE: This register is only writeable via I/O space.
|
|
*/
|
|
if (dev->device == PCI_DEVICE_ID_TTI_HPT371)
|
|
outb(inb(iobase + 0x9c) | 0x04, iobase + 0x9c);
|
|
|
|
/* Now kick off ATA set up */
|
|
return ata_pci_bmdma_init_one(dev, ppi, &hpt3x2n_sht, hpriv, 0);
|
|
}
|
|
|
|
static const struct pci_device_id hpt3x2n[] = {
|
|
{ PCI_VDEVICE(TTI, PCI_DEVICE_ID_TTI_HPT366), },
|
|
{ PCI_VDEVICE(TTI, PCI_DEVICE_ID_TTI_HPT371), },
|
|
{ PCI_VDEVICE(TTI, PCI_DEVICE_ID_TTI_HPT372), },
|
|
{ PCI_VDEVICE(TTI, PCI_DEVICE_ID_TTI_HPT302), },
|
|
{ PCI_VDEVICE(TTI, PCI_DEVICE_ID_TTI_HPT372N), },
|
|
|
|
{ },
|
|
};
|
|
|
|
static struct pci_driver hpt3x2n_pci_driver = {
|
|
.name = DRV_NAME,
|
|
.id_table = hpt3x2n,
|
|
.probe = hpt3x2n_init_one,
|
|
.remove = ata_pci_remove_one
|
|
};
|
|
|
|
module_pci_driver(hpt3x2n_pci_driver);
|
|
|
|
MODULE_AUTHOR("Alan Cox");
|
|
MODULE_DESCRIPTION("low-level driver for the Highpoint HPT3xxN");
|
|
MODULE_LICENSE("GPL");
|
|
MODULE_DEVICE_TABLE(pci, hpt3x2n);
|
|
MODULE_VERSION(DRV_VERSION);
|