Commit e49bd683 authored by Tiezhu Yang's avatar Tiezhu Yang Committed by Jens Axboe
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AHCI: Add support for Loongson 7A1000 SATA controller 



Loongson 7A1000 SATA controller uses BAR0 as the base address register.

Signed-off-by: default avatarTiezhu Yang <yangtiezhu@loongson.cn>
Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
parent 9acb9fe1

drivers/ata/ahci.c

+7 −0
Original line number Diff line number Diff line
@@ -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 */