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path: root/drivers/ata/pata_pdc2027x.c
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Diffstat (limited to 'drivers/ata/pata_pdc2027x.c')
-rw-r--r--drivers/ata/pata_pdc2027x.c106
1 files changed, 56 insertions, 50 deletions
diff --git a/drivers/ata/pata_pdc2027x.c b/drivers/ata/pata_pdc2027x.c
index 0e1c2c1134d..4d06a5cda98 100644
--- a/drivers/ata/pata_pdc2027x.c
+++ b/drivers/ata/pata_pdc2027x.c
@@ -25,7 +25,6 @@
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/pci.h>
-#include <linux/init.h>
#include <linux/blkdev.h>
#include <linux/delay.h>
#include <linux/device.h>
@@ -63,6 +62,9 @@ enum {
};
static int pdc2027x_init_one(struct pci_dev *pdev, const struct pci_device_id *ent);
+#ifdef CONFIG_PM_SLEEP
+static int pdc2027x_reinit_one(struct pci_dev *pdev);
+#endif
static int pdc2027x_prereset(struct ata_link *link, unsigned long deadline);
static void pdc2027x_set_piomode(struct ata_port *ap, struct ata_device *adev);
static void pdc2027x_set_dmamode(struct ata_port *ap, struct ata_device *adev);
@@ -126,6 +128,10 @@ static struct pci_driver pdc2027x_pci_driver = {
.id_table = pdc2027x_pci_tbl,
.probe = pdc2027x_init_one,
.remove = ata_pci_remove_one,
+#ifdef CONFIG_PM_SLEEP
+ .suspend = ata_pci_device_suspend,
+ .resume = pdc2027x_reinit_one,
+#endif
};
static struct scsi_host_template pdc2027x_sht = {
@@ -150,20 +156,18 @@ static struct ata_port_operations pdc2027x_pata133_ops = {
static struct ata_port_info pdc2027x_port_info[] = {
/* PDC_UDMA_100 */
{
- .flags = ATA_FLAG_NO_LEGACY | ATA_FLAG_SLAVE_POSS |
- ATA_FLAG_MMIO,
- .pio_mask = 0x1f, /* pio0-4 */
- .mwdma_mask = 0x07, /* mwdma0-2 */
- .udma_mask = ATA_UDMA5, /* udma0-5 */
+ .flags = ATA_FLAG_SLAVE_POSS,
+ .pio_mask = ATA_PIO4,
+ .mwdma_mask = ATA_MWDMA2,
+ .udma_mask = ATA_UDMA5,
.port_ops = &pdc2027x_pata100_ops,
},
/* PDC_UDMA_133 */
{
- .flags = ATA_FLAG_NO_LEGACY | ATA_FLAG_SLAVE_POSS |
- ATA_FLAG_MMIO,
- .pio_mask = 0x1f, /* pio0-4 */
- .mwdma_mask = 0x07, /* mwdma0-2 */
- .udma_mask = ATA_UDMA6, /* udma0-6 */
+ .flags = ATA_FLAG_SLAVE_POSS,
+ .pio_mask = ATA_PIO4,
+ .mwdma_mask = ATA_MWDMA2,
+ .udma_mask = ATA_UDMA6,
.port_ops = &pdc2027x_pata133_ops,
},
};
@@ -265,7 +269,7 @@ static unsigned long pdc2027x_mode_filter(struct ata_device *adev, unsigned long
struct ata_device *pair = ata_dev_pair(adev);
if (adev->class != ATA_DEV_ATA || adev->devno == 0 || pair == NULL)
- return ata_bmdma_mode_filter(adev, mask);
+ return mask;
/* Check for slave of a Maxtor at UDMA6 */
ata_id_c_string(pair->id, model_num, ATA_ID_PROD,
@@ -274,14 +278,13 @@ static unsigned long pdc2027x_mode_filter(struct ata_device *adev, unsigned long
if (strstr(model_num, "Maxtor") == NULL && pair->dma_mode == XFER_UDMA_6)
mask &= ~ (1 << (6 + ATA_SHIFT_UDMA));
- return ata_bmdma_mode_filter(adev, mask);
+ return mask;
}
/**
* pdc2027x_set_piomode - Initialize host controller PATA PIO timings
* @ap: Port to configure
* @adev: um
- * @pio: PIO mode, 0 - 4
*
* Set PIO mode for device.
*
@@ -326,7 +329,6 @@ static void pdc2027x_set_piomode(struct ata_port *ap, struct ata_device *adev)
* pdc2027x_set_dmamode - Initialize host controller PATA UDMA timings
* @ap: Port to configure
* @adev: um
- * @udma: udma mode, XFER_UDMA_0 to XFER_UDMA_6
*
* Set UDMA mode for device.
*
@@ -406,23 +408,20 @@ static int pdc2027x_set_mode(struct ata_link *link, struct ata_device **r_failed
if (rc < 0)
return rc;
- ata_link_for_each_dev(dev, link) {
- if (ata_dev_enabled(dev)) {
+ ata_for_each_dev(dev, link, ENABLED) {
+ pdc2027x_set_piomode(ap, dev);
- pdc2027x_set_piomode(ap, dev);
+ /*
+ * Enable prefetch if the device support PIO only.
+ */
+ if (dev->xfer_shift == ATA_SHIFT_PIO) {
+ u32 ctcr1 = ioread32(dev_mmio(ap, dev, PDC_CTCR1));
+ ctcr1 |= (1 << 25);
+ iowrite32(ctcr1, dev_mmio(ap, dev, PDC_CTCR1));
- /*
- * Enable prefetch if the device support PIO only.
- */
- if (dev->xfer_shift == ATA_SHIFT_PIO) {
- u32 ctcr1 = ioread32(dev_mmio(ap, dev, PDC_CTCR1));
- ctcr1 |= (1 << 25);
- iowrite32(ctcr1, dev_mmio(ap, dev, PDC_CTCR1));
-
- PDPRINTK("Turn on prefetch\n");
- } else {
- pdc2027x_set_dmamode(ap, dev);
- }
+ PDPRINTK("Turn on prefetch\n");
+ } else {
+ pdc2027x_set_dmamode(ap, dev);
}
}
return 0;
@@ -662,7 +661,7 @@ static int pdc_hardware_init(struct ata_host *host, unsigned int board_idx)
*/
pll_clock = pdc_detect_pll_input_clock(host);
- dev_printk(KERN_INFO, host->dev, "PLL input clock %ld kHz\n", pll_clock/1000);
+ dev_info(host->dev, "PLL input clock %ld kHz\n", pll_clock/1000);
/* Adjust PLL control register */
pdc_adjust_pll(host, pll_clock, board_idx);
@@ -702,9 +701,9 @@ static void pdc_ata_setup_port(struct ata_ioports *port, void __iomem *base)
* @pdev: instance of pci_dev found
* @ent: matching entry in the id_tbl[]
*/
-static int __devinit pdc2027x_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
+static int pdc2027x_init_one(struct pci_dev *pdev,
+ const struct pci_device_id *ent)
{
- static int printed_version;
static const unsigned long cmd_offset[] = { 0x17c0, 0x15c0 };
static const unsigned long bmdma_offset[] = { 0x1000, 0x1008 };
unsigned int board_idx = (unsigned int) ent->driver_data;
@@ -714,8 +713,7 @@ static int __devinit pdc2027x_init_one(struct pci_dev *pdev, const struct pci_de
void __iomem *mmio_base;
int i, rc;
- if (!printed_version++)
- dev_printk(KERN_DEBUG, &pdev->dev, "version " DRV_VERSION "\n");
+ ata_print_version_once(&pdev->dev, DRV_VERSION);
/* alloc host */
host = ata_host_alloc_pinfo(&pdev->dev, ppi, 2);
@@ -759,25 +757,33 @@ static int __devinit pdc2027x_init_one(struct pci_dev *pdev, const struct pci_de
return -EIO;
pci_set_master(pdev);
- return ata_host_activate(host, pdev->irq, ata_sff_interrupt,
+ return ata_host_activate(host, pdev->irq, ata_bmdma_interrupt,
IRQF_SHARED, &pdc2027x_sht);
}
-/**
- * pdc2027x_init - Called after this module is loaded into the kernel.
- */
-static int __init pdc2027x_init(void)
+#ifdef CONFIG_PM_SLEEP
+static int pdc2027x_reinit_one(struct pci_dev *pdev)
{
- return pci_register_driver(&pdc2027x_pci_driver);
-}
+ struct ata_host *host = pci_get_drvdata(pdev);
+ unsigned int board_idx;
+ int rc;
-/**
- * pdc2027x_exit - Called before this module unloaded from the kernel
- */
-static void __exit pdc2027x_exit(void)
-{
- pci_unregister_driver(&pdc2027x_pci_driver);
+ rc = ata_pci_device_do_resume(pdev);
+ if (rc)
+ return rc;
+
+ if (pdev->device == PCI_DEVICE_ID_PROMISE_20268 ||
+ pdev->device == PCI_DEVICE_ID_PROMISE_20270)
+ board_idx = PDC_UDMA_100;
+ else
+ board_idx = PDC_UDMA_133;
+
+ if (pdc_hardware_init(host, board_idx))
+ return -EIO;
+
+ ata_host_resume(host);
+ return 0;
}
+#endif
-module_init(pdc2027x_init);
-module_exit(pdc2027x_exit);
+module_pci_driver(pdc2027x_pci_driver);
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-12-09 23:18:18 +0000