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[PATCH] sata_sil24: enable 64bit 

Enable 64bit.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
This commit is contained in:
Tejun Heo 2006-04-11 22:32:19 +09:00 committed by Jeff Garzik
parent bad28a37f5
commit 26ec634c31
1 changed files with 28 additions and 19 deletions
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47
drivers/scsi/sata_sil24.c
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@ -485,6 +485,7 @@ static int sil24_softreset(struct ata_port *ap, unsigned int *class)
prb->fis[1] = 0; /* no PM yet */
writel((u32)paddr, port + PORT_CMD_ACTIVATE);
writel((u64)paddr >> 32, port + PORT_CMD_ACTIVATE + 4);
mask = (PORT_IRQ_COMPLETE | PORT_IRQ_ERROR) << PORT_IRQ_RAW_SHIFT;
irq_stat = ata_wait_register(port + PORT_IRQ_STAT, mask, 0x0,
@ -644,6 +645,8 @@ static unsigned int sil24_qc_issue(struct ata_queued_cmd *qc)
dma_addr_t paddr = pp->cmd_block_dma + qc->tag * sizeof(*pp->cmd_block);
writel((u32)paddr, port + PORT_CMD_ACTIVATE);
writel((u64)paddr >> 32, port + PORT_CMD_ACTIVATE + 4);
return 0;
}
@ -980,22 +983,29 @@ static int sil24_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
/*
* Configure the device
*/
/*
* FIXME: This device is certainly 64-bit capable. We just
* don't know how to use it. After fixing 32bit activation in
* this function, enable 64bit masks here.
*/
rc = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
if (rc) {
dev_printk(KERN_ERR, &pdev->dev,
"32-bit DMA enable failed\n");
goto out_free;
}
rc = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK);
if (rc) {
dev_printk(KERN_ERR, &pdev->dev,
"32-bit consistent DMA enable failed\n");
goto out_free;
if (!pci_set_dma_mask(pdev, DMA_64BIT_MASK)) {
rc = pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK);
if (rc) {
rc = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK);
if (rc) {
dev_printk(KERN_ERR, &pdev->dev,
"64-bit DMA enable failed\n");
goto out_free;
}
}
} else {
rc = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
if (rc) {
dev_printk(KERN_ERR, &pdev->dev,
"32-bit DMA enable failed\n");
goto out_free;
}
rc = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK);
if (rc) {
dev_printk(KERN_ERR, &pdev->dev,
"32-bit consistent DMA enable failed\n");
goto out_free;
}
}
/* GPIO off */
@ -1053,9 +1063,8 @@ static int sil24_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
writel(0x0000, port + PORT_CRC_ERR_CNT);
writel(0x0000, port + PORT_HSHK_ERR_CNT);
/* FIXME: 32bit activation? */
writel(0, port + PORT_ACTIVATE_UPPER_ADDR);
writel(PORT_CS_32BIT_ACTV, port + PORT_CTRL_STAT);
/* Always use 64bit activation */
writel(PORT_CS_32BIT_ACTV, port + PORT_CTRL_CLR);
/* Configure interrupts */
writel(0xffff, port + PORT_IRQ_ENABLE_CLR);