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authorTiezhu Yang <yangtiezhu@loongson.cn>2020-03-10 15:50:08 +0300
committerJens Axboe <axboe@kernel.dk>2020-03-12 16:44:19 +0300
commite49bd683e00bcc636bf2df79d4c8a0bda0314dc0 (patch)
tree8ca6ed5a8a7521533a42db3cc5e7ec00bf046087 /drivers/ata/ahci.c
parent9acb9fe18d863aacc99948963f8d5d447dc311be (diff)
downloadlinux-e49bd683e00bcc636bf2df79d4c8a0bda0314dc0.tar.xz
AHCI: Add support for Loongson 7A1000 SATA controller
Loongson 7A1000 SATA controller uses BAR0 as the base address register. Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn> Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/ata/ahci.c')
-rw-r--r--drivers/ata/ahci.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c
index 11ea1aff40db..33d051a22ea6 100644
--- a/drivers/ata/ahci.c
+++ b/drivers/ata/ahci.c
@@ -40,6 +40,7 @@
enum {
AHCI_PCI_BAR_STA2X11 = 0,
AHCI_PCI_BAR_CAVIUM = 0,
+ AHCI_PCI_BAR_LOONGSON = 0,
AHCI_PCI_BAR_ENMOTUS = 2,
AHCI_PCI_BAR_CAVIUM_GEN5 = 4,
AHCI_PCI_BAR_STANDARD = 5,
@@ -589,6 +590,9 @@ 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 },
@@ -1680,6 +1684,9 @@ 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 == 0x7a08)
+ ahci_pci_bar = AHCI_PCI_BAR_LOONGSON;
}
/* acquire resources */