From: Tiezhu Yang <yangtiezhu@loongson.cn>
To: Bjorn Helgaas <bhelgaas@google.com>, Jens Axboe <axboe@kernel.dk>
Cc: linux-pci@vger.kernel.org, linux-ide@vger.kernel.org,
linux-kernel@vger.kernel.org,
Jiaxun Yang <jiaxun.yang@flygoat.com>,
Xuefeng Li <lixuefeng@loongson.cn>
Subject: [PATCH 2/2] AHCI: Add support for Loongson 7A1000 SATA controller
Date: Tue, 10 Mar 2020 20:50:08 +0800 [thread overview]
Message-ID: <1583844608-30029-2-git-send-email-yangtiezhu@loongson.cn> (raw)
In-Reply-To: <1583844608-30029-1-git-send-email-yangtiezhu@loongson.cn>
Loongson 7A1000 SATA controller uses BAR0 as the base address register.
Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
---
drivers/ata/ahci.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c
index 11ea1af..33d051a 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 */
--
2.1.0
next prev parent reply other threads:[~2020-03-10 13:30 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-10 12:50 [PATCH 1/2] PCI: Add Loongson vendor ID Tiezhu Yang
2020-03-10 12:50 ` Tiezhu Yang [this message]
2020-03-12 13:44 ` [PATCH 2/2] AHCI: Add support for Loongson 7A1000 SATA controller Jens Axboe
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