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Diffstat (limited to 'drivers/ata/ata_piix.c')
-rw-r--r--drivers/ata/ata_piix.c436
1 files changed, 326 insertions, 110 deletions
diff --git a/drivers/ata/ata_piix.c b/drivers/ata/ata_piix.c
index 22b2dba90b9..12b3a42fb35 100644
--- a/drivers/ata/ata_piix.c
+++ b/drivers/ata/ata_piix.c
@@ -93,7 +93,7 @@
#include <linux/libata.h>
#define DRV_NAME "ata_piix"
-#define DRV_VERSION "2.00"
+#define DRV_VERSION "2.00ac6"
enum {
PIIX_IOCFG = 0x54, /* IDE I/O configuration register */
@@ -116,15 +116,18 @@ enum {
PIIX_80C_SEC = (1 << 7) | (1 << 6),
/* controller IDs */
- piix4_pata = 0,
- ich5_pata = 1,
- ich5_sata = 2,
- esb_sata = 3,
- ich6_sata = 4,
- ich6_sata_ahci = 5,
- ich6m_sata_ahci = 6,
- ich8_sata_ahci = 7,
-
+ piix_pata_33 = 0, /* PIIX3 or 4 at 33Mhz */
+ ich_pata_33 = 1, /* ICH up to UDMA 33 only */
+ ich_pata_66 = 2, /* ICH up to 66 Mhz */
+ ich_pata_100 = 3, /* ICH up to UDMA 100 */
+ ich_pata_133 = 4, /* ICH up to UDMA 133 */
+ ich5_sata = 5,
+ esb_sata = 6,
+ ich6_sata = 7,
+ ich6_sata_ahci = 8,
+ ich6m_sata_ahci = 9,
+ ich8_sata_ahci = 10,
+
/* constants for mapping table */
P0 = 0, /* port 0 */
P1 = 1, /* port 1 */
@@ -152,19 +155,54 @@ struct piix_host_priv {
static int piix_init_one (struct pci_dev *pdev,
const struct pci_device_id *ent);
static void piix_host_stop(struct ata_host *host);
-static void piix_set_piomode (struct ata_port *ap, struct ata_device *adev);
-static void piix_set_dmamode (struct ata_port *ap, struct ata_device *adev);
static void piix_pata_error_handler(struct ata_port *ap);
+static void ich_pata_error_handler(struct ata_port *ap);
static void piix_sata_error_handler(struct ata_port *ap);
+static void piix_set_piomode (struct ata_port *ap, struct ata_device *adev);
+static void piix_set_dmamode (struct ata_port *ap, struct ata_device *adev);
+static void ich_set_dmamode (struct ata_port *ap, struct ata_device *adev);
static unsigned int in_module_init = 1;
static const struct pci_device_id piix_pci_tbl[] = {
#ifdef ATA_ENABLE_PATA
- { 0x8086, 0x7111, PCI_ANY_ID, PCI_ANY_ID, 0, 0, piix4_pata },
- { 0x8086, 0x24db, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich5_pata },
- { 0x8086, 0x25a2, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich5_pata },
- { 0x8086, 0x27df, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich5_pata },
+ /* Intel PIIX4 for the 430TX/440BX/MX chipset: UDMA 33 */
+ /* Also PIIX4E (fn3 rev 2) and PIIX4M (fn3 rev 3) */
+ { 0x8086, 0x7111, PCI_ANY_ID, PCI_ANY_ID, 0, 0, piix_pata_33 },
+ { 0x8086, 0x24db, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich_pata_100 },
+ { 0x8086, 0x25a2, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich_pata_100 },
+ /* Intel PIIX4 */
+ { 0x8086, 0x7199, PCI_ANY_ID, PCI_ANY_ID, 0, 0, piix_pata_33 },
+ /* Intel PIIX4 */
+ { 0x8086, 0x7601, PCI_ANY_ID, PCI_ANY_ID, 0, 0, piix_pata_33 },
+ /* Intel PIIX */
+ { 0x8086, 0x84CA, PCI_ANY_ID, PCI_ANY_ID, 0, 0, piix_pata_33 },
+ /* Intel ICH (i810, i815, i840) UDMA 66*/
+ { 0x8086, 0x2411, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich_pata_66 },
+ /* Intel ICH0 : UDMA 33*/
+ { 0x8086, 0x2421, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich_pata_33 },
+ /* Intel ICH2M */
+ { 0x8086, 0x244A, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich_pata_100 },
+ /* Intel ICH2 (i810E2, i845, 850, 860) UDMA 100 */
+ { 0x8086, 0x244B, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich_pata_100 },
+ /* Intel ICH3M */
+ { 0x8086, 0x248A, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich_pata_100 },
+ /* Intel ICH3 (E7500/1) UDMA 100 */
+ { 0x8086, 0x248B, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich_pata_100 },
+ /* Intel ICH4 (i845GV, i845E, i852, i855) UDMA 100 */
+ { 0x8086, 0x24CA, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich_pata_100 },
+ { 0x8086, 0x24CB, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich_pata_100 },
+ /* Intel ICH5 */
+ { 0x8086, 0x24DB, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich_pata_133 },
+ /* C-ICH (i810E2) */
+ { 0x8086, 0x245B, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich_pata_100 },
+ /* ESB (855GME/875P + 6300ESB) UDMA 100 */
+ { 0x8086, 0x25A2, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich_pata_100 },
+ /* ICH6 (and 6) (i915) UDMA 100 */
+ { 0x8086, 0x266F, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich_pata_100 },
+ /* ICH7/7-R (i945, i975) UDMA 100*/
+ { 0x8086, 0x27DF, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich_pata_133 },
+ { 0x8086, 0x269E, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich_pata_100 },
#endif
/* NOTE: The following PCI ids must be kept in sync with the
@@ -263,6 +301,39 @@ static const struct ata_port_operations piix_pata_ops = {
.host_stop = piix_host_stop,
};
+static const struct ata_port_operations ich_pata_ops = {
+ .port_disable = ata_port_disable,
+ .set_piomode = piix_set_piomode,
+ .set_dmamode = ich_set_dmamode,
+ .mode_filter = ata_pci_default_filter,
+
+ .tf_load = ata_tf_load,
+ .tf_read = ata_tf_read,
+ .check_status = ata_check_status,
+ .exec_command = ata_exec_command,
+ .dev_select = ata_std_dev_select,
+
+ .bmdma_setup = ata_bmdma_setup,
+ .bmdma_start = ata_bmdma_start,
+ .bmdma_stop = ata_bmdma_stop,
+ .bmdma_status = ata_bmdma_status,
+ .qc_prep = ata_qc_prep,
+ .qc_issue = ata_qc_issue_prot,
+ .data_xfer = ata_pio_data_xfer,
+
+ .freeze = ata_bmdma_freeze,
+ .thaw = ata_bmdma_thaw,
+ .error_handler = ich_pata_error_handler,
+ .post_internal_cmd = ata_bmdma_post_internal_cmd,
+
+ .irq_handler = ata_interrupt,
+ .irq_clear = ata_bmdma_irq_clear,
+
+ .port_start = ata_port_start,
+ .port_stop = ata_port_stop,
+ .host_stop = ata_host_stop,
+};
+
static const struct ata_port_operations piix_sata_ops = {
.port_disable = ata_port_disable,
@@ -359,35 +430,56 @@ static const struct piix_map_db *piix_map_db_table[] = {
};
static struct ata_port_info piix_port_info[] = {
- /* piix4_pata */
+ /* piix_pata_33: 0: PIIX3 or 4 at 33MHz */
{
.sht = &piix_sht,
- .flags = ATA_FLAG_SLAVE_POSS,
+ .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
.pio_mask = 0x1f, /* pio0-4 */
-#if 0
- .mwdma_mask = 0x06, /* mwdma1-2 */
-#else
- .mwdma_mask = 0x00, /* mwdma broken */
-#endif
+ .mwdma_mask = 0x06, /* mwdma1-2 ?? CHECK 0 should be ok but slow */
.udma_mask = ATA_UDMA_MASK_40C,
.port_ops = &piix_pata_ops,
},
- /* ich5_pata */
+ /* ich_pata_33: 1 ICH0 - ICH at 33Mhz*/
+ {
+ .sht = &piix_sht,
+ .flags = ATA_FLAG_SRST | ATA_FLAG_SLAVE_POSS,
+ .pio_mask = 0x1f, /* pio 0-4 */
+ .mwdma_mask = 0x06, /* Check: maybe 0x07 */
+ .udma_mask = ATA_UDMA2, /* UDMA33 */
+ .port_ops = &ich_pata_ops,
+ },
+ /* ich_pata_66: 2 ICH controllers up to 66MHz */
{
.sht = &piix_sht,
- .flags = ATA_FLAG_SLAVE_POSS | PIIX_FLAG_CHECKINTR,
+ .flags = ATA_FLAG_SRST | ATA_FLAG_SLAVE_POSS,
+ .pio_mask = 0x1f, /* pio 0-4 */
+ .mwdma_mask = 0x06, /* MWDMA0 is broken on chip */
+ .udma_mask = ATA_UDMA4,
+ .port_ops = &ich_pata_ops,
+ },
+
+ /* ich_pata_100: 3 */
+ {
+ .sht = &piix_sht,
+ .flags = ATA_FLAG_SRST | ATA_FLAG_SLAVE_POSS | PIIX_FLAG_CHECKINTR,
.pio_mask = 0x1f, /* pio0-4 */
-#if 0
.mwdma_mask = 0x06, /* mwdma1-2 */
-#else
- .mwdma_mask = 0x00, /* mwdma broken */
-#endif
- .udma_mask = 0x3f, /* udma0-5 */
- .port_ops = &piix_pata_ops,
+ .udma_mask = ATA_UDMA5, /* udma0-5 */
+ .port_ops = &ich_pata_ops,
},
- /* ich5_sata */
+ /* ich_pata_133: 4 ICH with full UDMA6 */
+ {
+ .sht = &piix_sht,
+ .flags = ATA_FLAG_SRST | ATA_FLAG_SLAVE_POSS | PIIX_FLAG_CHECKINTR,
+ .pio_mask = 0x1f, /* pio 0-4 */
+ .mwdma_mask = 0x06, /* Check: maybe 0x07 */
+ .udma_mask = ATA_UDMA6, /* UDMA133 */
+ .port_ops = &ich_pata_ops,
+ },
+
+ /* ich5_sata: 5 */
{
.sht = &piix_sht,
.flags = ATA_FLAG_SATA | PIIX_FLAG_CHECKINTR |
@@ -398,7 +490,7 @@ static struct ata_port_info piix_port_info[] = {
.port_ops = &piix_sata_ops,
},
- /* i6300esb_sata */
+ /* i6300esb_sata: 6 */
{
.sht = &piix_sht,
.flags = ATA_FLAG_SATA |
@@ -409,7 +501,7 @@ static struct ata_port_info piix_port_info[] = {
.port_ops = &piix_sata_ops,
},
- /* ich6_sata */
+ /* ich6_sata: 7 */
{
.sht = &piix_sht,
.flags = ATA_FLAG_SATA |
@@ -420,7 +512,7 @@ static struct ata_port_info piix_port_info[] = {
.port_ops = &piix_sata_ops,
},
- /* ich6_sata_ahci */
+ /* ich6_sata_ahci:8 */
{
.sht = &piix_sht,
.flags = ATA_FLAG_SATA |
@@ -432,7 +524,7 @@ static struct ata_port_info piix_port_info[] = {
.port_ops = &piix_sata_ops,
},
- /* ich6m_sata_ahci */
+ /* ich6m_sata_ahci: 9 */
{
.sht = &piix_sht,
.flags = ATA_FLAG_SATA |
@@ -455,6 +547,7 @@ static struct ata_port_info piix_port_info[] = {
.udma_mask = 0x7f, /* udma0-6 */
.port_ops = &piix_sata_ops,
},
+
};
static struct pci_bits piix_enable_bits[] = {
@@ -483,7 +576,8 @@ MODULE_PARM_DESC(force_pcs, "force honoring or ignoring PCS to work around "
* LOCKING:
* None (inherited from caller).
*/
-static void piix_pata_cbl_detect(struct ata_port *ap)
+
+static void ich_pata_cbl_detect(struct ata_port *ap)
{
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
u8 tmp, mask;
@@ -503,14 +597,12 @@ static void piix_pata_cbl_detect(struct ata_port *ap)
cbl40:
ap->cbl = ATA_CBL_PATA40;
- ap->udma_mask &= ATA_UDMA_MASK_40C;
}
/**
* piix_pata_prereset - prereset for PATA host controller
* @ap: Target port
*
- * Prereset including cable detection.
*
* LOCKING:
* None (inherited from caller).
@@ -524,9 +616,7 @@ static int piix_pata_prereset(struct ata_port *ap)
ap->eh_context.i.action &= ~ATA_EH_RESET_MASK;
return 0;
}
-
- piix_pata_cbl_detect(ap);
-
+ ap->cbl = ATA_CBL_PATA40;
return ata_std_prereset(ap);
}
@@ -536,6 +626,36 @@ static void piix_pata_error_handler(struct ata_port *ap)
ata_std_postreset);
}
+
+/**
+ * ich_pata_prereset - prereset for PATA host controller
+ * @ap: Target port
+ *
+ *
+ * LOCKING:
+ * None (inherited from caller).
+ */
+static int ich_pata_prereset(struct ata_port *ap)
+{
+ struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+
+ if (!pci_test_config_bits(pdev, &piix_enable_bits[ap->port_no])) {
+ ata_port_printk(ap, KERN_INFO, "port disabled. ignoring.\n");
+ ap->eh_context.i.action &= ~ATA_EH_RESET_MASK;
+ return 0;
+ }
+
+ ich_pata_cbl_detect(ap);
+
+ return ata_std_prereset(ap);
+}
+
+static void ich_pata_error_handler(struct ata_port *ap)
+{
+ ata_bmdma_drive_eh(ap, ich_pata_prereset, ata_std_softreset, NULL,
+ ata_std_postreset);
+}
+
/**
* piix_sata_present_mask - determine present mask for SATA host controller
* @ap: Target port
@@ -637,6 +757,13 @@ static void piix_set_piomode (struct ata_port *ap, struct ata_device *adev)
unsigned int slave_port = 0x44;
u16 master_data;
u8 slave_data;
+ u8 udma_enable;
+ int control = 0;
+
+ /*
+ * See Intel Document 298600-004 for the timing programing rules
+ * for ICH controllers.
+ */
static const /* ISP RTC */
u8 timings[][2] = { { 0, 0 },
@@ -645,20 +772,30 @@ static void piix_set_piomode (struct ata_port *ap, struct ata_device *adev)
{ 2, 1 },
{ 2, 3 }, };
+ if (pio >= 2)
+ control |= 1; /* TIME1 enable */
+ if (ata_pio_need_iordy(adev))
+ control |= 2; /* IE enable */
+
+ /* Intel specifies that the PPE functionality is for disk only */
+ if (adev->class == ATA_DEV_ATA)
+ control |= 4; /* PPE enable */
+
pci_read_config_word(dev, master_port, &master_data);
if (is_slave) {
+ /* Enable SITRE (seperate slave timing register) */
master_data |= 0x4000;
- /* enable PPE, IE and TIME */
- master_data |= 0x0070;
+ /* enable PPE1, IE1 and TIME1 as needed */
+ master_data |= (control << 4);
pci_read_config_byte(dev, slave_port, &slave_data);
slave_data &= (ap->port_no ? 0x0f : 0xf0);
- slave_data |=
- (timings[pio][0] << 2) |
- (timings[pio][1] << (ap->port_no ? 4 : 0));
+ /* Load the timing nibble for this slave */
+ slave_data |= ((timings[pio][0] << 2) | timings[pio][1]) << (ap->port_no ? 4 : 0);
} else {
+ /* Master keeps the bits in a different format */
master_data &= 0xccf8;
- /* enable PPE, IE and TIME */
- master_data |= 0x0007;
+ /* Enable PPE, IE and TIME as appropriate */
+ master_data |= control;
master_data |=
(timings[pio][0] << 12) |
(timings[pio][1] << 8);
@@ -666,13 +803,23 @@ static void piix_set_piomode (struct ata_port *ap, struct ata_device *adev)
pci_write_config_word(dev, master_port, master_data);
if (is_slave)
pci_write_config_byte(dev, slave_port, slave_data);
+
+ /* Ensure the UDMA bit is off - it will be turned back on if
+ UDMA is selected */
+
+ if (ap->udma_mask) {
+ pci_read_config_byte(dev, 0x48, &udma_enable);
+ udma_enable &= ~(1 << (2 * ap->port_no + adev->devno));
+ pci_write_config_byte(dev, 0x48, udma_enable);
+ }
}
/**
- * piix_set_dmamode - Initialize host controller PATA PIO timings
+ * do_pata_set_dmamode - Initialize host controller PATA PIO timings
* @ap: Port whose timings we are configuring
- * @adev: um
+ * @adev: Drive in question
* @udma: udma mode, 0 - 6
+ * @is_ich: set if the chip is an ICH device
*
* Set UDMA mode for device, in host controller PCI config space.
*
@@ -680,70 +827,140 @@ static void piix_set_piomode (struct ata_port *ap, struct ata_device *adev)
* None (inherited from caller).
*/
-static void piix_set_dmamode (struct ata_port *ap, struct ata_device *adev)
+static void do_pata_set_dmamode (struct ata_port *ap, struct ata_device *adev, int isich)
{
- unsigned int udma = adev->dma_mode; /* FIXME: MWDMA too */
struct pci_dev *dev = to_pci_dev(ap->host->dev);
- u8 maslave = ap->port_no ? 0x42 : 0x40;
- u8 speed = udma;
- unsigned int drive_dn = (ap->port_no ? 2 : 0) + adev->devno;
- int a_speed = 3 << (drive_dn * 4);
- int u_flag = 1 << drive_dn;
- int v_flag = 0x01 << drive_dn;
- int w_flag = 0x10 << drive_dn;
- int u_speed = 0;
- int sitre;
- u16 reg4042, reg4a;
- u8 reg48, reg54, reg55;
-
- pci_read_config_word(dev, maslave, &reg4042);
- DPRINTK("reg4042 = 0x%04x\n", reg4042);
- sitre = (reg4042 & 0x4000) ? 1 : 0;
- pci_read_config_byte(dev, 0x48, &reg48);
- pci_read_config_word(dev, 0x4a, &reg4a);
- pci_read_config_byte(dev, 0x54, &reg54);
- pci_read_config_byte(dev, 0x55, &reg55);
-
- switch(speed) {
- case XFER_UDMA_4:
- case XFER_UDMA_2: u_speed = 2 << (drive_dn * 4); break;
- case XFER_UDMA_6:
- case XFER_UDMA_5:
- case XFER_UDMA_3:
- case XFER_UDMA_1: u_speed = 1 << (drive_dn * 4); break;
- case XFER_UDMA_0: u_speed = 0 << (drive_dn * 4); break;
- case XFER_MW_DMA_2:
- case XFER_MW_DMA_1: break;
- default:
- BUG();
- return;
- }
+ u8 master_port = ap->port_no ? 0x42 : 0x40;
+ u16 master_data;
+ u8 speed = adev->dma_mode;
+ int devid = adev->devno + 2 * ap->port_no;
+ u8 udma_enable;
+
+ static const /* ISP RTC */
+ u8 timings[][2] = { { 0, 0 },
+ { 0, 0 },
+ { 1, 0 },
+ { 2, 1 },
+ { 2, 3 }, };
+
+ pci_read_config_word(dev, master_port, &master_data);
+ pci_read_config_byte(dev, 0x48, &udma_enable);
if (speed >= XFER_UDMA_0) {
- if (!(reg48 & u_flag))
- pci_write_config_byte(dev, 0x48, reg48 | u_flag);
- if (speed == XFER_UDMA_5) {
- pci_write_config_byte(dev, 0x55, (u8) reg55|w_flag);
- } else {
- pci_write_config_byte(dev, 0x55, (u8) reg55 & ~w_flag);
+ unsigned int udma = adev->dma_mode - XFER_UDMA_0;
+ u16 udma_timing;
+ u16 ideconf;
+ int u_clock, u_speed;
+
+ /*
+ * UDMA is handled by a combination of clock switching and
+ * selection of dividers
+ *
+ * Handy rule: Odd modes are UDMATIMx 01, even are 02
+ * except UDMA0 which is 00
+ */
+ u_speed = min(2 - (udma & 1), udma);
+ if (udma == 5)
+ u_clock = 0x1000; /* 100Mhz */
+ else if (udma > 2)
+ u_clock = 1; /* 66Mhz */
+ else
+ u_clock = 0; /* 33Mhz */
+
+ udma_enable |= (1 << devid);
+
+ /* Load the CT/RP selection */
+ pci_read_config_word(dev, 0x4A, &udma_timing);
+ udma_timing &= ~(3 << (4 * devid));
+ udma_timing |= u_speed << (4 * devid);
+ pci_write_config_word(dev, 0x4A, udma_timing);
+
+ if (isich) {
+ /* Select a 33/66/100Mhz clock */
+ pci_read_config_word(dev, 0x54, &ideconf);
+ ideconf &= ~(0x1001 << devid);
+ ideconf |= u_clock << devid;
+ /* For ICH or later we should set bit 10 for better
+ performance (WR_PingPong_En) */
+ pci_write_config_word(dev, 0x54, ideconf);
}
- if ((reg4a & a_speed) != u_speed)
- pci_write_config_word(dev, 0x4a, (reg4a & ~a_speed) | u_speed);
- if (speed > XFER_UDMA_2) {
- if (!(reg54 & v_flag))
- pci_write_config_byte(dev, 0x54, reg54 | v_flag);
- } else
- pci_write_config_byte(dev, 0x54, reg54 & ~v_flag);
} else {
- if (reg48 & u_flag)
- pci_write_config_byte(dev, 0x48, reg48 & ~u_flag);
- if (reg4a & a_speed)
- pci_write_config_word(dev, 0x4a, reg4a & ~a_speed);
- if (reg54 & v_flag)
- pci_write_config_byte(dev, 0x54, reg54 & ~v_flag);
- if (reg55 & w_flag)
- pci_write_config_byte(dev, 0x55, (u8) reg55 & ~w_flag);
+ /*
+ * MWDMA is driven by the PIO timings. We must also enable
+ * IORDY unconditionally along with TIME1. PPE has already
+ * been set when the PIO timing was set.
+ */
+ unsigned int mwdma = adev->dma_mode - XFER_MW_DMA_0;
+ unsigned int control;
+ u8 slave_data;
+ const unsigned int needed_pio[3] = {
+ XFER_PIO_0, XFER_PIO_3, XFER_PIO_4
+ };
+ int pio = needed_pio[mwdma] - XFER_PIO_0;
+
+ control = 3; /* IORDY|TIME1 */
+
+ /* If the drive MWDMA is faster than it can do PIO then
+ we must force PIO into PIO0 */
+
+ if (adev->pio_mode < needed_pio[mwdma])
+ /* Enable DMA timing only */
+ control |= 8; /* PIO cycles in PIO0 */
+
+ if (adev->devno) { /* Slave */
+ master_data &= 0xFF4F; /* Mask out IORDY|TIME1|DMAONLY */
+ master_data |= control << 4;
+ pci_read_config_byte(dev, 0x44, &slave_data);
+ slave_data &= (0x0F + 0xE1 * ap->port_no);
+ /* 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 */
+ master_data &= 0xCCF4; /* Mask out IORDY|TIME1|DMAONLY
+ and master timing bits */
+ master_data |= control;
+ master_data |=
+ (timings[pio][0] << 12) |
+ (timings[pio][1] << 8);
+ }
+ udma_enable &= ~(1 << devid);
+ pci_write_config_word(dev, master_port, master_data);
}
+ /* Don't scribble on 0x48 if the controller does not support UDMA */
+ if (ap->udma_mask)
+ pci_write_config_byte(dev, 0x48, udma_enable);
+}
+
+/**
+ * piix_set_dmamode - Initialize host controller PATA DMA timings
+ * @ap: Port whose timings we are configuring
+ * @adev: um
+ *
+ * Set MW/UDMA mode for device, in host controller PCI config space.
+ *
+ * LOCKING:
+ * None (inherited from caller).
+ */
+
+static void piix_set_dmamode (struct ata_port *ap, struct ata_device *adev)
+{
+ do_pata_set_dmamode(ap, adev, 0);
+}
+
+/**
+ * ich_set_dmamode - Initialize host controller PATA DMA timings
+ * @ap: Port whose timings we are configuring
+ * @adev: um
+ *
+ * Set MW/UDMA mode for device, in host controller PCI config space.
+ *
+ * LOCKING:
+ * None (inherited from caller).
+ */
+
+static void ich_set_dmamode (struct ata_port *ap, struct ata_device *adev)
+{
+ do_pata_set_dmamode(ap, adev, 1);
}
#define AHCI_PCI_BAR 5
@@ -872,7 +1089,7 @@ static void __devinit piix_init_sata_map(struct pci_dev *pdev,
case IDE:
WARN_ON((i & 1) || map[i + 1] != IDE);
- pinfo[i / 2] = piix_port_info[ich5_pata];
+ pinfo[i / 2] = piix_port_info[ich_pata_100];
pinfo[i / 2].private_data = hpriv;
i++;
printk(" IDE IDE");
@@ -1007,4 +1224,3 @@ static void __exit piix_exit(void)
module_init(piix_init);
module_exit(piix_exit);
-
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-17 10:12:53 +0000