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[libata ahci] Isolate Intel-ism, add JMicron JMB360 support

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Isolate some PCI config register bitbanging to Intel hardware, as it
should have been all along.

Add support for JMicron JMB360.
This commit is contained in:
Jeff Garzik 2006-01-29 02:47:03 -05:00
parent 3ee68c4af3
commit bd12097c74
1 changed files with 13 additions and 4 deletions
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17
drivers/scsi/ahci.c
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@ -286,6 +286,8 @@ static const struct pci_device_id ahci_pci_tbl[] = {
board_ahci }, /* ICH8M */
{ PCI_VENDOR_ID_INTEL, 0x282a, PCI_ANY_ID, PCI_ANY_ID, 0, 0,
board_ahci }, /* ICH8M */
{ 0x197b, 0x2360, PCI_ANY_ID, PCI_ANY_ID, 0, 0,
board_ahci }, /* JMicron JMB360 */
{ } /* terminate list */
};
@ -802,7 +804,6 @@ static int ahci_host_init(struct ata_probe_ent *probe_ent)
struct pci_dev *pdev = to_pci_dev(probe_ent->dev);
void __iomem *mmio = probe_ent->mmio_base;
u32 tmp, cap_save;
u16 tmp16;
unsigned int i, j, using_dac;
int rc;
void __iomem *port_mmio;
@ -836,9 +837,13 @@ static int ahci_host_init(struct ata_probe_ent *probe_ent)
writel(0xf, mmio + HOST_PORTS_IMPL);
(void) readl(mmio + HOST_PORTS_IMPL); /* flush */
pci_read_config_word(pdev, 0x92, &tmp16);
tmp16 |= 0xf;
pci_write_config_word(pdev, 0x92, tmp16);
if (pdev->vendor == PCI_VENDOR_ID_INTEL) {
u16 tmp16;
pci_read_config_word(pdev, 0x92, &tmp16);
tmp16 |= 0xf;
pci_write_config_word(pdev, 0x92, tmp16);
}
hpriv->cap = readl(mmio + HOST_CAP);
hpriv->port_map = readl(mmio + HOST_PORTS_IMPL);
@ -1082,6 +1087,10 @@ static int ahci_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
if (have_msi)
hpriv->flags |= AHCI_FLAG_MSI;
/* JMicron-specific fixup: make sure we're in AHCI mode */
if (pdev->vendor == 0x197b)
pci_write_config_byte(pdev, 0x41, 0xa1);
/* initialize adapter */
rc = ahci_host_init(probe_ent);
if (rc)