[PATCH 01/14] ATA : vortex86 : fix vortex86dx/sx hardware CRC bug.

From: Paul Schilling
Date: Fri Oct 21 2011 - 23:36:48 EST

This fixes a DMA issue related to a CRC bug on
the RDC pata peripherial found on the vortex86sx and vortex86dx.

Signed-off-by: Paul Schilling <paul.s.schilling@xxxxxxxxx>
---
drivers/ata/pata_it821x.c | 264 +++++++++++++++++++++++---------------------
drivers/ata/pata_rdc.c | 35 +++++--
drivers/ide/it821x.c | 9 ++-
include/linux/pci_ids.h | 2 +
4 files changed, 174 insertions(+), 136 deletions(-)

diff --git a/drivers/ata/pata_it821x.c b/drivers/ata/pata_it821x.c
index 62c5d00..eaf9c1e 100644
--- a/drivers/ata/pata_it821x.c
+++ b/drivers/ata/pata_it821x.c
@@ -1,5 +1,5 @@
/*
- * pata_it821x.c - IT821x PATA for new ATA layer
+ * pata_it821x.c - IT821x PATA for new ATA layer
* (C) 2005 Red Hat Inc
* Alan Cox <alan@xxxxxxxxxxxxxxxxxxx>
* (C) 2007 Bartlomiej Zolnierkiewicz
@@ -16,7 +16,7 @@
* Based in part on the ITE vendor provided SCSI driver.
*
* Documentation available from IT8212F_V04.pdf
- * http://www.ite.com.tw/EN/products_more.aspx?CategoryID=3&ID=5,91
+ * http://www.ite.com.tw/EN/products_more.aspx?CategoryID=3&ID=5,91
* Some other documents are NDA.
*
* The ITE8212 isn't exactly a standard IDE controller. It has two
@@ -79,22 +79,20 @@
#include <scsi/scsi_host.h>
#include <linux/libata.h>

-
#define DRV_NAME "pata_it821x"
#define DRV_VERSION "0.4.2"

-struct it821x_dev
-{
- unsigned int smart:1, /* Are we in smart raid mode */
- timing10:1; /* Rev 0x10 */
- u8 clock_mode; /* 0, ATA_50 or ATA_66 */
- u8 want[2][2]; /* Mode/Pri log for master slave */
+struct it821x_dev {
+ unsigned int smart:1, /* Are we in smart raid mode */
+ timing10:1; /* Rev 0x10 */
+ u8 clock_mode; /* 0, ATA_50 or ATA_66 */
+ u8 want[2][2]; /* Mode/Pri log for master slave */
/* We need these for switching the clock when DMA goes on/off
The high byte is the 66Mhz timing */
- u16 pio[2]; /* Cached PIO values */
- u16 mwdma[2]; /* Cached MWDMA values */
- u16 udma[2]; /* Cached UDMA values (per drive) */
- u16 last_device; /* Master or slave loaded ? */
+ u16 pio[2]; /* Cached PIO values */
+ u16 mwdma[2]; /* Cached MWDMA values */
+ u16 udma[2]; /* Cached UDMA values (per drive) */
+ u16 last_device; /* Master or slave loaded ? */
};

#define ATA_66 0
@@ -124,7 +122,8 @@ static int it8212_noraid;
* the DMA start/stop sequence as with the old driver.
*/

-static void it821x_program(struct ata_port *ap, struct ata_device *adev, u16 timing)
+static void it821x_program(struct ata_port *ap, struct ata_device *adev,
+ u16 timing)
{
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
struct it821x_dev *itdev = ap->private_data;
@@ -139,7 +138,6 @@ static void it821x_program(struct ata_port *ap, struct ata_device *adev, u16 tim
pci_write_config_byte(pdev, 0x54 + 4 * channel, conf);
}

-
/**
* it821x_program_udma - program the UDMA registers
* @ap: ATA port
@@ -152,7 +150,8 @@ static void it821x_program(struct ata_port *ap, struct ata_device *adev, u16 tim
* here and partly in start_dma.
*/

-static void it821x_program_udma(struct ata_port *ap, struct ata_device *adev, u16 timing)
+static void it821x_program_udma(struct ata_port *ap, struct ata_device *adev,
+ u16 timing)
{
struct it821x_dev *itdev = ap->private_data;
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
@@ -227,16 +226,16 @@ static void it821x_clock_strategy(struct ata_port *ap, struct ata_device *adev)
pci_write_config_byte(pdev, 0x50, v);

/*
- * Reprogram the UDMA/PIO of the pair drive for the switch
- * MWDMA will be dealt with by the dma switcher
+ * Reprogram the UDMA/PIO of the pair drive for the switch
+ * MWDMA will be dealt with by the dma switcher
*/
- if (pair && itdev->udma[1-unit] != UDMA_OFF) {
- it821x_program_udma(ap, pair, itdev->udma[1-unit]);
- it821x_program(ap, pair, itdev->pio[1-unit]);
+ if (pair && itdev->udma[1 - unit] != UDMA_OFF) {
+ it821x_program_udma(ap, pair, itdev->udma[1 - unit]);
+ it821x_program(ap, pair, itdev->pio[1 - unit]);
}
/*
- * Reprogram the UDMA/PIO of our drive for the switch.
- * MWDMA will be dealt with by the dma switcher
+ * Reprogram the UDMA/PIO of our drive for the switch.
+ * MWDMA will be dealt with by the dma switcher
*/
if (itdev->udma[unit] != UDMA_OFF) {
it821x_program_udma(ap, adev, itdev->udma[unit]);
@@ -253,11 +252,13 @@ static void it821x_clock_strategy(struct ata_port *ap, struct ata_device *adev)
* shared by PIO and MWDMA and for both channels.
*/

-static void it821x_passthru_set_piomode(struct ata_port *ap, struct ata_device *adev)
+static void it821x_passthru_set_piomode(struct ata_port *ap,
+ struct ata_device *adev)
{
/* Spec says 89 ref driver uses 88 */
- static const u16 pio[] = { 0xAA88, 0xA382, 0xA181, 0x3332, 0x3121 };
- static const u8 pio_want[] = { ATA_66, ATA_66, ATA_66, ATA_66, ATA_ANY };
+ static const u16 pio[] = { 0xAA88, 0xA382, 0xA181, 0x3332, 0x3121 };
+ static const u8 pio_want[] = {
+ ATA_66, ATA_66, ATA_66, ATA_66, ATA_ANY };

struct it821x_dev *itdev = ap->private_data;
int unit = adev->devno;
@@ -283,12 +284,17 @@ static void it821x_passthru_set_piomode(struct ata_port *ap, struct ata_device *
* we switch devices and mode.
*/

-static void it821x_passthru_set_dmamode(struct ata_port *ap, struct ata_device *adev)
+static void it821x_passthru_set_dmamode(struct ata_port *ap,
+ struct ata_device *adev)
{
- static const u16 dma[] = { 0x8866, 0x3222, 0x3121 };
- static const u8 mwdma_want[] = { ATA_ANY, ATA_66, ATA_ANY };
- static const u16 udma[] = { 0x4433, 0x4231, 0x3121, 0x2121, 0x1111, 0x2211, 0x1111 };
- static const u8 udma_want[] = { ATA_ANY, ATA_50, ATA_ANY, ATA_66, ATA_66, ATA_50, ATA_66 };
+ static const u16 dma[] = { 0x8866, 0x3222, 0x3121 };
+ static const u8 mwdma_want[] = { ATA_ANY, ATA_66, ATA_ANY };
+ static const u16 udma[] = {
+ 0x4433, 0x4231, 0x3121,
+ 0x2121, 0x1111, 0x2211, 0x1111 };
+ static const u8 udma_want[] = {
+ ATA_ANY, ATA_50, ATA_ANY,
+ ATA_66, ATA_66, ATA_50, ATA_66 };

struct pci_dev *pdev = to_pci_dev(ap->host->dev);
struct it821x_dev *itdev = ap->private_data;
@@ -309,9 +315,9 @@ static void it821x_passthru_set_dmamode(struct ata_port *ap, struct ata_device *
/* UDMA on. Again revision 0x10 must do the pair */
pci_read_config_byte(pdev, 0x50, &conf);
if (itdev->timing10)
- conf &= channel ? 0x9F: 0xE7;
+ conf &= channel ? 0x9F : 0xE7;
else
- conf &= ~ (1 << (3 + 2 * channel + unit));
+ conf &= ~(1 << (3 + 2 * channel + unit));
pci_write_config_byte(pdev, 0x50, conf);
it821x_clock_strategy(ap, adev);
it821x_program_udma(ap, adev, itdev->udma[unit]);
@@ -326,7 +332,7 @@ static void it821x_passthru_set_dmamode(struct ata_port *ap, struct ata_device *
/* UDMA bits off - Revision 0x10 do them in pairs */
pci_read_config_byte(pdev, 0x50, &conf);
if (itdev->timing10)
- conf |= channel ? 0x60: 0x18;
+ conf |= channel ? 0x60 : 0x18;
else
conf |= 1 << (3 + 2 * channel + unit);
pci_write_config_byte(pdev, 0x50, conf);
@@ -378,7 +384,6 @@ static void it821x_passthru_bmdma_stop(struct ata_queued_cmd *qc)
it821x_program(ap, adev, itdev->pio[unit]);
}

-
/**
* it821x_passthru_dev_select - Select master/slave
* @ap: ATA port
@@ -387,8 +392,7 @@ static void it821x_passthru_bmdma_stop(struct ata_queued_cmd *qc)
* Device selection hook. If necessary perform clock switching
*/

-static void it821x_passthru_dev_select(struct ata_port *ap,
- unsigned int device)
+static void it821x_passthru_dev_select(struct ata_port *ap, unsigned int device)
{
struct it821x_dev *itdev = ap->private_data;
if (itdev && device != itdev->last_device) {
@@ -410,29 +414,29 @@ static void it821x_passthru_dev_select(struct ata_port *ap,

static unsigned int it821x_smart_qc_issue(struct ata_queued_cmd *qc)
{
- switch(qc->tf.command)
- {
+ switch (qc->tf.command) {
/* Commands the firmware supports */
- case ATA_CMD_READ:
- case ATA_CMD_READ_EXT:
- case ATA_CMD_WRITE:
- case ATA_CMD_WRITE_EXT:
- case ATA_CMD_PIO_READ:
- case ATA_CMD_PIO_READ_EXT:
- case ATA_CMD_PIO_WRITE:
- case ATA_CMD_PIO_WRITE_EXT:
- case ATA_CMD_READ_MULTI:
- case ATA_CMD_READ_MULTI_EXT:
- case ATA_CMD_WRITE_MULTI:
- case ATA_CMD_WRITE_MULTI_EXT:
- case ATA_CMD_ID_ATA:
- case ATA_CMD_INIT_DEV_PARAMS:
- case 0xFC: /* Internal 'report rebuild state' */
+ case ATA_CMD_READ:
+ case ATA_CMD_READ_EXT:
+ case ATA_CMD_WRITE:
+ case ATA_CMD_WRITE_EXT:
+ case ATA_CMD_PIO_READ:
+ case ATA_CMD_PIO_READ_EXT:
+ case ATA_CMD_PIO_WRITE:
+ case ATA_CMD_PIO_WRITE_EXT:
+ case ATA_CMD_READ_MULTI:
+ case ATA_CMD_READ_MULTI_EXT:
+ case ATA_CMD_WRITE_MULTI:
+ case ATA_CMD_WRITE_MULTI_EXT:
+ case ATA_CMD_ID_ATA:
+ case ATA_CMD_INIT_DEV_PARAMS:
+ case 0xFC: /* Internal 'report rebuild state' */
/* Arguably should just no-op this one */
- case ATA_CMD_SET_FEATURES:
- return ata_bmdma_qc_issue(qc);
+ case ATA_CMD_SET_FEATURES:
+ return ata_bmdma_qc_issue(qc);
}
- printk(KERN_DEBUG "it821x: can't process command 0x%02X\n", qc->tf.command);
+ printk(KERN_DEBUG "it821x: can't process command 0x%02X\n",
+ qc->tf.command);
return AC_ERR_DEV;
}

@@ -462,7 +466,8 @@ static unsigned int it821x_passthru_qc_issue(struct ata_queued_cmd *qc)
* and respect them.
*/

-static int it821x_smart_set_mode(struct ata_link *link, struct ata_device **unused)
+static int it821x_smart_set_mode(struct ata_link *link,
+ struct ata_device **unused)
{
struct ata_device *dev;

@@ -509,8 +514,7 @@ static void it821x_dev_config(struct ata_device *adev)
if (strstr(model_num, "Integrated Technology Express")) {
/* RAID mode */
ata_dev_info(adev, "%sRAID%d volume",
- adev->id[147] ? "Bootable " : "",
- adev->id[129]);
+ adev->id[147] ? "Bootable " : "", adev->id[129]);
if (adev->id[129] != 1)
pr_cont("(%dK stripe)", adev->id[146]);
pr_cont("\n");
@@ -535,7 +539,7 @@ static void it821x_dev_config(struct ata_device *adev)
*/

static unsigned int it821x_read_id(struct ata_device *adev,
- struct ata_taskfile *tf, u16 *id)
+ struct ata_taskfile *tf, u16 * id)
{
unsigned int err_mask;
unsigned char model_num[ATA_ID_PROD_LEN + 1];
@@ -616,7 +620,7 @@ static void it821x_display_disk(int n, u8 *buf)
if (buf[52] > 4) /* No Disk */
return;

- ata_id_c_string((u16 *)buf, id, 0, 41);
+ ata_id_c_string((u16 *) buf, id, 0, 41);

if (buf[51]) {
mode = ffs(buf[51]);
@@ -635,10 +639,10 @@ static void it821x_display_disk(int n, u8 *buf)
strcpy(mbuf, "PIO");
if (buf[52] == 4)
printk(KERN_INFO "%d: %-6s %-8s %s %s\n",
- n, mbuf, types[buf[52]], id, cbl);
+ n, mbuf, types[buf[52]], id, cbl);
else
printk(KERN_INFO "%d: %-6s %-8s Volume: %1d %s %s\n",
- n, mbuf, types[buf[52]], buf[53], id, cbl);
+ n, mbuf, types[buf[52]], buf[53], id, cbl);
if (buf[125] < 100)
printk(KERN_INFO "%d: Rebuilding: %d%%\n", n, buf[125]);
}
@@ -673,7 +677,7 @@ static u8 *it821x_firmware_command(struct ata_port *ap, u8 cmd, int len)
udelay(1);
/* This should be almost immediate but a little paranoia goes a long
way. */
- while(n++ < 10) {
+ while (n++ < 10) {
status = ioread8(ap->ioaddr.status_addr);
if (status & ATA_ERR) {
kfree(buf);
@@ -681,8 +685,8 @@ static u8 *it821x_firmware_command(struct ata_port *ap, u8 cmd, int len)
return NULL;
}
if (status & ATA_DRQ) {
- ioread16_rep(ap->ioaddr.data_addr, buf, len/2);
- return (u8 *)buf;
+ ioread16_rep(ap->ioaddr.data_addr, buf, len / 2);
+ return (u8 *) buf;
}
mdelay(1);
}
@@ -711,18 +715,13 @@ static void it821x_probe_firmware(struct ata_port *ap)

if (buf != NULL) {
printk(KERN_INFO "pata_it821x: Firmware %02X/%02X/%02X%02X\n",
- buf[505],
- buf[506],
- buf[507],
- buf[508]);
+ buf[505], buf[506], buf[507], buf[508]);
for (i = 0; i < 4; i++)
- it821x_display_disk(i, buf + 128 * i);
+ it821x_display_disk(i, buf + 128 * i);
kfree(buf);
}
}

-
-
/**
* it821x_port_start - port setup
* @ap: ATA port being set up
@@ -772,7 +771,8 @@ static int it821x_port_start(struct ata_port *ap)
itdev->timing10 = 1;
/* Need to disable ATAPI DMA for this case */
if (!itdev->smart)
- printk(KERN_WARNING DRV_NAME": Revision 0x10, workarounds activated.\n");
+ printk(KERN_WARNING DRV_NAME
+ ": Revision 0x10, workarounds activated.\n");
}

return 0;
@@ -802,57 +802,57 @@ static struct scsi_host_template it821x_sht = {
};

static struct ata_port_operations it821x_smart_port_ops = {
- .inherits = &ata_bmdma_port_ops,
+ .inherits = &ata_bmdma_port_ops,

- .check_atapi_dma= it821x_check_atapi_dma,
- .qc_issue = it821x_smart_qc_issue,
+ .check_atapi_dma = it821x_check_atapi_dma,
+ .qc_issue = it821x_smart_qc_issue,

- .cable_detect = ata_cable_80wire,
- .set_mode = it821x_smart_set_mode,
- .dev_config = it821x_dev_config,
- .read_id = it821x_read_id,
+ .cable_detect = ata_cable_80wire,
+ .set_mode = it821x_smart_set_mode,
+ .dev_config = it821x_dev_config,
+ .read_id = it821x_read_id,

- .port_start = it821x_port_start,
+ .port_start = it821x_port_start,
};

static struct ata_port_operations it821x_passthru_port_ops = {
- .inherits = &ata_bmdma_port_ops,
+ .inherits = &ata_bmdma_port_ops,

- .check_atapi_dma= it821x_check_atapi_dma,
- .sff_dev_select = it821x_passthru_dev_select,
- .bmdma_start = it821x_passthru_bmdma_start,
- .bmdma_stop = it821x_passthru_bmdma_stop,
- .qc_issue = it821x_passthru_qc_issue,
+ .check_atapi_dma = it821x_check_atapi_dma,
+ .sff_dev_select = it821x_passthru_dev_select,
+ .bmdma_start = it821x_passthru_bmdma_start,
+ .bmdma_stop = it821x_passthru_bmdma_stop,
+ .qc_issue = it821x_passthru_qc_issue,

- .cable_detect = ata_cable_unknown,
- .set_piomode = it821x_passthru_set_piomode,
- .set_dmamode = it821x_passthru_set_dmamode,
+ .cable_detect = ata_cable_unknown,
+ .set_piomode = it821x_passthru_set_piomode,
+ .set_dmamode = it821x_passthru_set_dmamode,

- .port_start = it821x_port_start,
+ .port_start = it821x_port_start,
};

static struct ata_port_operations it821x_rdc_port_ops = {
- .inherits = &ata_bmdma_port_ops,
+ .inherits = &ata_bmdma_port_ops,

- .check_atapi_dma= it821x_check_atapi_dma,
- .sff_dev_select = it821x_passthru_dev_select,
- .bmdma_start = it821x_passthru_bmdma_start,
- .bmdma_stop = it821x_passthru_bmdma_stop,
- .qc_issue = it821x_passthru_qc_issue,
+ .check_atapi_dma = it821x_check_atapi_dma,
+ .sff_dev_select = it821x_passthru_dev_select,
+ .bmdma_start = it821x_passthru_bmdma_start,
+ .bmdma_stop = it821x_passthru_bmdma_stop,
+ .qc_issue = it821x_passthru_qc_issue,

- .cable_detect = it821x_rdc_cable,
- .set_piomode = it821x_passthru_set_piomode,
- .set_dmamode = it821x_passthru_set_dmamode,
+ .cable_detect = it821x_rdc_cable,
+ .set_piomode = it821x_passthru_set_piomode,
+ .set_dmamode = it821x_passthru_set_dmamode,

- .port_start = it821x_port_start,
+ .port_start = it821x_port_start,
};

static void it821x_disable_raid(struct pci_dev *pdev)
{
/* Neither the RDC nor the IT8211 */
if (pdev->vendor != PCI_VENDOR_ID_ITE ||
- pdev->device != PCI_DEVICE_ID_ITE_8212)
- return;
+ pdev->device != PCI_DEVICE_ID_ITE_8212)
+ return;

/* Reset local CPU, and set BIOS not ready */
pci_write_config_byte(pdev, 0x5E, 0x01);
@@ -864,12 +864,11 @@ static void it821x_disable_raid(struct pci_dev *pdev)
PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER);
pci_write_config_word(pdev, 0x40, 0xA0F3);

- pci_write_config_dword(pdev,0x4C, 0x02040204);
+ pci_write_config_dword(pdev, 0x4C, 0x02040204);
pci_write_config_byte(pdev, 0x42, 0x36);
pci_write_config_byte(pdev, PCI_LATENCY_TIMER, 0x20);
}

-
static int it821x_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
{
u8 conf;
@@ -898,7 +897,16 @@ static int it821x_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
static const struct ata_port_info info_rdc_11 = {
.flags = ATA_FLAG_SLAVE_POSS,
.pio_mask = ATA_PIO4,
- .mwdma_mask = ATA_MWDMA2,
+ .mwdma_mask = 0,
+ .udma_mask = 0,
+ /* No UDMA */
+ .port_ops = &it821x_rdc_port_ops
+ };
+ static const struct ata_port_info info_rdc_01 = {
+ .flags = ATA_FLAG_SLAVE_POSS,
+ .pio_mask = ATA_PIO4,
+ .mwdma_mask = 0,
+ .udma_mask = 0,
/* No UDMA */
.port_ops = &it821x_rdc_port_ops
};
@@ -912,11 +920,16 @@ static int it821x_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
return rc;

if (pdev->vendor == PCI_VENDOR_ID_RDC) {
- /* Deal with Vortex86SX */
- if (pdev->revision == 0x11)
+ if (((pdev->revision == 0x11) || (pdev->revision == 0x13)) &&
+ (pdev->device == PCI_DEVICE_ID_RDC_D1010)) {
+ /* Deal with Vortex86SX */
ppi[0] = &info_rdc_11;
- else
+ printk(KERN_INFO DRV_NAME
+ ": Detected Vortex86SX/DX Bug.\n");
+ printk(KERN_INFO DRV_NAME ": Disabling UDMA.\n");
+ } else {
ppi[0] = &info_rdc;
+ }
} else {
/* Force the card into bypass mode if so requested */
if (it8212_noraid) {
@@ -926,8 +939,8 @@ static int it821x_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
pci_read_config_byte(pdev, 0x50, &conf);
conf &= 1;

- printk(KERN_INFO DRV_NAME": controller in %s mode.\n",
- mode[conf]);
+ printk(KERN_INFO DRV_NAME ": controller in %s mode.\n",
+ mode[conf]);
if (conf == 0)
ppi[0] = &info_passthru;
else
@@ -954,21 +967,20 @@ static int it821x_reinit_one(struct pci_dev *pdev)
#endif

static const struct pci_device_id it821x[] = {
- { PCI_VDEVICE(ITE, PCI_DEVICE_ID_ITE_8211), },
- { PCI_VDEVICE(ITE, PCI_DEVICE_ID_ITE_8212), },
- { PCI_VDEVICE(RDC, PCI_DEVICE_ID_RDC_D1010), },
-
- { },
+ {PCI_VDEVICE(ITE, PCI_DEVICE_ID_ITE_8211),},
+ {PCI_VDEVICE(ITE, PCI_DEVICE_ID_ITE_8212),},
+ {PCI_VDEVICE(RDC, PCI_DEVICE_ID_RDC_D1010),},
+ {},
};

static struct pci_driver it821x_pci_driver = {
- .name = DRV_NAME,
- .id_table = it821x,
- .probe = it821x_init_one,
- .remove = ata_pci_remove_one,
+ .name = DRV_NAME,
+ .id_table = it821x,
+ .probe = it821x_init_one,
+ .remove = ata_pci_remove_one,
#ifdef CONFIG_PM
- .suspend = ata_pci_device_suspend,
- .resume = it821x_reinit_one,
+ .suspend = ata_pci_device_suspend,
+ .resume = it821x_reinit_one,
#endif
};

@@ -983,12 +995,12 @@ static void __exit it821x_exit(void)
}

MODULE_AUTHOR("Alan Cox");
-MODULE_DESCRIPTION("low-level driver for the IT8211/IT8212 IDE RAID controller");
+MODULE_DESCRIPTION
+("low-level driver for the IT8211/IT8212 IDE RAID controller");
MODULE_LICENSE("GPL");
MODULE_DEVICE_TABLE(pci, it821x);
MODULE_VERSION(DRV_VERSION);

-
module_param_named(noraid, it8212_noraid, int, S_IRUGO);
MODULE_PARM_DESC(noraid, "Force card into bypass mode");

diff --git a/drivers/ata/pata_rdc.c b/drivers/ata/pata_rdc.c
index 4d318f8..85b1e11 100644
--- a/drivers/ata/pata_rdc.c
+++ b/drivers/ata/pata_rdc.c
@@ -258,7 +258,7 @@ static void rdc_set_dmamode(struct ata_port *ap, struct ata_device *adev)
/* Load the matching timing */
slave_data |= ((timings[pio][0] << 2) | timings[pio][1]) << (ap->port_no ? 4 : 0);
pci_write_config_byte(dev, 0x44, slave_data);
- } else { /* Master */
+ } else { /* Master */
master_data &= 0xCCF4; /* Mask out IORDY|TIME1|DMAONLY
and master timing bits */
master_data |= control;
@@ -290,6 +290,16 @@ static struct ata_port_info rdc_port_info = {
.port_ops = &rdc_pata_ops,
};

+static struct ata_port_info vortex_port_info = {
+ .flags = ATA_FLAG_SLAVE_POSS,
+ .pio_mask = ATA_PIO4,
+ .mwdma_mask = 0,
+ .udma_mask = 0,
+ /* No UDMA */
+ .port_ops = &rdc_pata_ops,
+};
+
+
static struct scsi_host_template rdc_sht = {
ATA_BMDMA_SHT(DRV_NAME),
};
@@ -322,16 +332,25 @@ static int __devinit rdc_init_one(struct pci_dev *pdev,

ata_print_version_once(&pdev->dev, DRV_VERSION);

- port_info[0] = rdc_port_info;
- port_info[1] = rdc_port_info;
-
- port_flags = port_info[0].flags;
-
/* enable device and prepare host */
rc = pcim_enable_device(pdev);
if (rc)
return rc;

+ if ((pdev->revision == 0x01) &&
+ (pdev->device == PCI_DEVICE_ID_RDC_D1011)) {
+ /* Deal with Vortex86DX */
+ port_info[0] = vortex_port_info;
+ port_info[1] = vortex_port_info;
+ printk(KERN_INFO DRV_NAME ": Detected Vortex86DX Bug.\n");
+ printk(KERN_INFO DRV_NAME ": Disabling UDMA.\n");
+ } else {
+ port_info[0] = rdc_port_info;
+ port_info[1] = rdc_port_info;
+ }
+
+ port_flags = port_info[0].flags;
+
hpriv = devm_kzalloc(dev, sizeof(*hpriv), GFP_KERNEL);
if (!hpriv)
return -ENOMEM;
@@ -365,8 +384,8 @@ static void rdc_remove_one(struct pci_dev *pdev)
}

static const struct pci_device_id rdc_pci_tbl[] = {
- { PCI_DEVICE(0x17F3, 0x1011), },
- { PCI_DEVICE(0x17F3, 0x1012), },
+ { PCI_VDEVICE(RDC, PCI_DEVICE_ID_RDC_D1011), },
+ { PCI_VDEVICE(RDC, PCI_DEVICE_ID_RDC_D1012), },
{ } /* terminate list */
};

diff --git a/drivers/ide/it821x.c b/drivers/ide/it821x.c
index 2e3169f..82c6bc7 100644
--- a/drivers/ide/it821x.c
+++ b/drivers/ide/it821x.c
@@ -581,10 +581,14 @@ static void __devinit init_hwif_it821x(ide_hwif_t *hwif)
hwif->ultra_mask = ATA_UDMA6;
hwif->mwdma_mask = ATA_MWDMA2;

- /* Vortex86SX quirk: prevent Ultra-DMA mode to fix BadCRC issue */
+ /* Vortex86SX and Vortex86DX quirk: prevent
+ * Ultra-DMA mode to fix BadCRC issue when
+ * using DMA mode */
if (idev->quirks & QUIRK_VORTEX86) {
- if (dev->revision == 0x11)
+ if (((dev->revision == 0x11) || (dev->revision == 0x13))
+ || (dev->revision == 0x01)) {
hwif->ultra_mask = 0;
+ }
}
}

@@ -680,6 +684,7 @@ static const struct pci_device_id it821x_pci_tbl[] = {
{ PCI_VDEVICE(ITE, PCI_DEVICE_ID_ITE_8211), 0 },
{ PCI_VDEVICE(ITE, PCI_DEVICE_ID_ITE_8212), 0 },
{ PCI_VDEVICE(RDC, PCI_DEVICE_ID_RDC_D1010), QUIRK_VORTEX86 },
+ { PCI_VDEVICE(RDC, PCI_DEVICE_ID_RDC_D1011), QUIRK_VORTEX86 },
{ 0, },
};

diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h
index ae96bbe..237da92 100644
--- a/include/linux/pci_ids.h
+++ b/include/linux/pci_ids.h
@@ -2259,6 +2259,8 @@
#define PCI_DEVICE_ID_RDC_R6060 0x6060
#define PCI_DEVICE_ID_RDC_R6061 0x6061
#define PCI_DEVICE_ID_RDC_D1010 0x1010
+#define PCI_DEVICE_ID_RDC_D1011 0x1011
+#define PCI_DEVICE_ID_RDC_D1012 0x1012

#define PCI_VENDOR_ID_LENOVO 0x17aa

--
1.7.6.4

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