| Message ID | 20191030135347.3636-6-jiaxun.yang@flygoat.com |
|---|---|
| State | Not Applicable |
| Headers | show |
| Series | PCI Devices for Loongson PCH | expand |
On 30/10/2019 13:53, Jiaxun Yang wrote: > Loongson is using BAR0 as AHCI registers BAR. > > Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com> > --- > drivers/ata/ahci.c | 7 +++++++ > 1 file changed, 7 insertions(+) > > diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c > index dd92faf197d5..db3d7b94ad53 100644 > --- a/drivers/ata/ahci.c > +++ b/drivers/ata/ahci.c > @@ -42,6 +42,7 @@ enum { > AHCI_PCI_BAR_CAVIUM = 0, > AHCI_PCI_BAR_ENMOTUS = 2, > AHCI_PCI_BAR_CAVIUM_GEN5 = 4, > + AHCI_PCI_BAR_LOONGSON = 0, nit: these seem to be ordered by ascending BAR index > AHCI_PCI_BAR_STANDARD = 5, > }; > > @@ -575,6 +576,9 @@ static const struct pci_device_id ahci_pci_tbl[] = { > /* Enmotus */ > { PCI_DEVICE(0x1c44, 0x8000), board_ahci }, > > + /* Loongson */ > + { PCI_VDEVICE(LOONGSON, 0x7a08), board_ahci }, > + > /* Generic, PCI class code for AHCI */ > { PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, > PCI_CLASS_STORAGE_SATA_AHCI, 0xffffff, board_ahci }, > @@ -1663,6 +1667,9 @@ static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) > ahci_pci_bar = AHCI_PCI_BAR_CAVIUM; > if (pdev->device == 0xa084) > ahci_pci_bar = AHCI_PCI_BAR_CAVIUM_GEN5; > + } else if (pdev->vendor == PCI_VENDOR_ID_LOONGSON) { > + if (pdev->device == PCI_DEVICE_ID_LOONGSON_AHCI) > + ahci_pci_bar = AHCI_PCI_BAR_LOONGSON; > } > > /* acquire resources */ >
diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c index dd92faf197d5..db3d7b94ad53 100644 --- a/drivers/ata/ahci.c +++ b/drivers/ata/ahci.c @@ -42,6 +42,7 @@ enum { AHCI_PCI_BAR_CAVIUM = 0, AHCI_PCI_BAR_ENMOTUS = 2, AHCI_PCI_BAR_CAVIUM_GEN5 = 4, + AHCI_PCI_BAR_LOONGSON = 0, AHCI_PCI_BAR_STANDARD = 5, }; @@ -575,6 +576,9 @@ static const struct pci_device_id ahci_pci_tbl[] = { /* Enmotus */ { PCI_DEVICE(0x1c44, 0x8000), board_ahci }, + /* Loongson */ + { PCI_VDEVICE(LOONGSON, 0x7a08), board_ahci }, + /* Generic, PCI class code for AHCI */ { PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_STORAGE_SATA_AHCI, 0xffffff, board_ahci }, @@ -1663,6 +1667,9 @@ static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) ahci_pci_bar = AHCI_PCI_BAR_CAVIUM; if (pdev->device == 0xa084) ahci_pci_bar = AHCI_PCI_BAR_CAVIUM_GEN5; + } else if (pdev->vendor == PCI_VENDOR_ID_LOONGSON) { + if (pdev->device == PCI_DEVICE_ID_LOONGSON_AHCI) + ahci_pci_bar = AHCI_PCI_BAR_LOONGSON; } /* acquire resources */
Loongson is using BAR0 as AHCI registers BAR. Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com> --- drivers/ata/ahci.c | 7 +++++++ 1 file changed, 7 insertions(+)