diff options
| author | Jeff Garzik <jgarzik@pobox.com> | 2006-01-29 02:47:03 -0500 |
|---|---|---|
| committer | Jeff Garzik <jgarzik@pobox.com> | 2006-01-29 02:47:03 -0500 |
| commit | bd12097c7415c13aff53aed473eec92acd15712a (patch) | |
| tree | 6df88a21b03df57d975c8b3479eb47a826ffc907 | |
| parent | 3ee68c4af3fd7228c1be63254b9f884614f9ebb2 (diff) | |
| download | linux-bd12097c7415c13aff53aed473eec92acd15712a.tar.gz | |
[libata ahci] Isolate Intel-ism, add JMicron JMB360 support
Isolate some PCI config register bitbanging to Intel hardware, as it
should have been all along.
Add support for JMicron JMB360.
| -rw-r--r-- | drivers/scsi/ahci.c | 17 |
1 files changed, 13 insertions, 4 deletions
diff --git a/drivers/scsi/ahci.c b/drivers/scsi/ahci.c index 19bd346951dd0e..2fffc7bf5d96d8 100644 --- a/drivers/scsi/ahci.c +++ b/drivers/scsi/ahci.c @@ -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) |