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path: root/drivers/ide/it821x.c
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Diffstat (limited to 'drivers/ide/it821x.c')
-rw-r--r--drivers/ide/it821x.c50
1 files changed, 31 insertions, 19 deletions
diff --git a/drivers/ide/it821x.c b/drivers/ide/it821x.c
index 0be27ac1f07..f01ba4606be 100644
--- a/drivers/ide/it821x.c
+++ b/drivers/ide/it821x.c
@@ -5,9 +5,8 @@
* May be copied or modified under the terms of the GNU General Public License
* Based in part on the ITE vendor provided SCSI driver.
*
- * Documentation available from
- * http://www.ite.com.tw/pc/IT8212F_V04.pdf
- * Some other documents are NDA.
+ * Documentation:
+ * Datasheet is freely available, some other documents under NDA.
*
* The ITE8212 isn't exactly a standard IDE controller. It has two
* modes. In pass through mode then it is an IDE controller. In its smart
@@ -62,12 +61,15 @@
#include <linux/types.h>
#include <linux/module.h>
+#include <linux/slab.h>
#include <linux/pci.h>
#include <linux/ide.h>
#include <linux/init.h>
#define DRV_NAME "it821x"
+#define QUIRK_VORTEX86 1
+
struct it821x_dev
{
unsigned int smart:1, /* Are we in smart raid mode */
@@ -79,6 +81,7 @@ struct it821x_dev
u16 pio[2]; /* Cached PIO values */
u16 mwdma[2]; /* Cached MWDMA values */
u16 udma[2]; /* Cached UDMA values (per drive) */
+ u16 quirks;
};
#define ATA_66 0
@@ -226,18 +229,18 @@ static void it821x_clock_strategy(ide_drive_t *drive)
/**
* it821x_set_pio_mode - set host controller for PIO mode
+ * @hwif: port
* @drive: drive
- * @pio: PIO mode number
*
* Tune the host to the desired PIO mode taking into the consideration
* the maximum PIO mode supported by the other device on the cable.
*/
-static void it821x_set_pio_mode(ide_drive_t *drive, const u8 pio)
+static void it821x_set_pio_mode(ide_hwif_t *hwif, ide_drive_t *drive)
{
- ide_hwif_t *hwif = drive->hwif;
struct it821x_dev *itdev = ide_get_hwifdata(hwif);
ide_drive_t *pair = ide_get_pair_dev(drive);
+ const u8 pio = drive->pio_mode - XFER_PIO_0;
u8 unit = drive->dn & 1, set_pio = pio;
/* Spec says 89 ref driver uses 88 */
@@ -250,7 +253,7 @@ static void it821x_set_pio_mode(ide_drive_t *drive, const u8 pio)
* on the cable.
*/
if (pair) {
- u8 pair_pio = ide_get_best_pio_mode(pair, 255, 4);
+ u8 pair_pio = pair->pio_mode - XFER_PIO_0;
/* trim PIO to the slowest of the master/slave */
if (pair_pio < set_pio)
set_pio = pair_pio;
@@ -391,14 +394,16 @@ static int it821x_dma_end(ide_drive_t *drive)
/**
* it821x_set_dma_mode - set host controller for DMA mode
+ * @hwif: port
* @drive: drive
- * @speed: DMA mode
*
* Tune the ITE chipset for the desired DMA mode.
*/
-static void it821x_set_dma_mode(ide_drive_t *drive, const u8 speed)
+static void it821x_set_dma_mode(ide_hwif_t *hwif, ide_drive_t *drive)
{
+ const u8 speed = drive->dma_mode;
+
/*
* MWDMA tuning is really hard because our MWDMA and PIO
* timings are kept in the same place. We can switch in the
@@ -506,12 +511,11 @@ static void it821x_quirkproc(ide_drive_t *drive)
static struct ide_dma_ops it821x_pass_through_dma_ops = {
.dma_host_set = ide_dma_host_set,
.dma_setup = ide_dma_setup,
- .dma_exec_cmd = ide_dma_exec_cmd,
.dma_start = it821x_dma_start,
.dma_end = it821x_dma_end,
.dma_test_irq = ide_dma_test_irq,
- .dma_timeout = ide_dma_timeout,
.dma_lost_irq = ide_dma_lost_irq,
+ .dma_timer_expiry = ide_dma_sff_timer_expiry,
.dma_sff_read_status = ide_dma_sff_read_status,
};
@@ -524,7 +528,7 @@ static struct ide_dma_ops it821x_pass_through_dma_ops = {
* ide DMA handlers appropriately
*/
-static void __devinit init_hwif_it821x(ide_hwif_t *hwif)
+static void init_hwif_it821x(ide_hwif_t *hwif)
{
struct pci_dev *dev = to_pci_dev(hwif->dev);
struct ide_host *host = pci_get_drvdata(dev);
@@ -557,8 +561,7 @@ static void __devinit init_hwif_it821x(ide_hwif_t *hwif)
* this is necessary.
*/
- pci_read_config_byte(dev, 0x08, &conf);
- if (conf == 0x10) {
+ if (dev->revision == 0x10) {
idev->timing10 = 1;
hwif->host_flags |= IDE_HFLAG_NO_ATAPI_DMA;
if (idev->smart == 0)
@@ -577,6 +580,12 @@ 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 */
+ if (idev->quirks & QUIRK_VORTEX86) {
+ if (dev->revision == 0x11)
+ hwif->ultra_mask = 0;
+ }
}
static void it8212_disable_raid(struct pci_dev *dev)
@@ -596,7 +605,7 @@ static void it8212_disable_raid(struct pci_dev *dev)
pci_write_config_byte(dev, PCI_LATENCY_TIMER, 0x20);
}
-static unsigned int init_chipset_it821x(struct pci_dev *dev)
+static int init_chipset_it821x(struct pci_dev *dev)
{
u8 conf;
static char *mode[2] = { "pass through", "smart" };
@@ -621,7 +630,7 @@ static const struct ide_port_ops it821x_port_ops = {
.cable_detect = it821x_cable_detect,
};
-static const struct ide_port_info it821x_chipset __devinitdata = {
+static const struct ide_port_info it821x_chipset = {
.name = DRV_NAME,
.init_chipset = init_chipset_it821x,
.init_hwif = init_hwif_it821x,
@@ -638,7 +647,7 @@ static const struct ide_port_info it821x_chipset __devinitdata = {
* We then use the IDE PCI generic helper to do most of the work.
*/
-static int __devinit it821x_init_one(struct pci_dev *dev, const struct pci_device_id *id)
+static int it821x_init_one(struct pci_dev *dev, const struct pci_device_id *id)
{
struct it821x_dev *itdevs;
int rc;
@@ -649,6 +658,8 @@ static int __devinit it821x_init_one(struct pci_dev *dev, const struct pci_devic
return -ENOMEM;
}
+ itdevs->quirks = id->driver_data;
+
rc = ide_pci_init_one(dev, &it821x_chipset, itdevs);
if (rc)
kfree(itdevs);
@@ -656,7 +667,7 @@ static int __devinit it821x_init_one(struct pci_dev *dev, const struct pci_devic
return rc;
}
-static void __devexit it821x_remove(struct pci_dev *dev)
+static void it821x_remove(struct pci_dev *dev)
{
struct ide_host *host = pci_get_drvdata(dev);
struct it821x_dev *itdevs = host->host_priv;
@@ -668,6 +679,7 @@ static void __devexit it821x_remove(struct pci_dev *dev)
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 },
{ 0, },
};
@@ -677,7 +689,7 @@ static struct pci_driver it821x_pci_driver = {
.name = "ITE821x IDE",
.id_table = it821x_pci_tbl,
.probe = it821x_init_one,
- .remove = __devexit_p(it821x_remove),
+ .remove = it821x_remove,
.suspend = ide_pci_suspend,
.resume = ide_pci_resume,
};
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-12-06 13:27:14 +0000