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ahci: Add support for Cavium's fifth generation SATA controller 

This patch adds support for Cavium's fifth generation SATA controller.
It is an on-chip controller and complies with AHCI 1.3.1. As the
controller uses 64-bit addresses it cannot use the standard AHCI BAR5
and so uses BAR4.

Signed-off-by: Radha Mohan Chintakuntla <rchintakuntla@cavium.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
hifive-unleashed-5.1
Radha Mohan Chintakuntla 2017-10-10 22:37:51 -07:00 committed by Tejun Heo
parent 03b623fbc5
commit b1314e3f85
1 changed files with 7 additions and 2 deletions
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9
drivers/ata/ahci.c
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@ -57,6 +57,7 @@ enum {
AHCI_PCI_BAR_STA2X11 = 0,
AHCI_PCI_BAR_CAVIUM = 0,
AHCI_PCI_BAR_ENMOTUS = 2,
AHCI_PCI_BAR_CAVIUM_GEN5 = 4,
AHCI_PCI_BAR_STANDARD = 5,
};
@ -1567,8 +1568,12 @@ static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
ahci_pci_bar = AHCI_PCI_BAR_STA2X11;
else if (pdev->vendor == 0x1c44 && pdev->device == 0x8000)
ahci_pci_bar = AHCI_PCI_BAR_ENMOTUS;
else if (pdev->vendor == 0x177d && pdev->device == 0xa01c)
ahci_pci_bar = AHCI_PCI_BAR_CAVIUM;
else if (pdev->vendor == PCI_VENDOR_ID_CAVIUM) {
if (pdev->device == 0xa01c)
ahci_pci_bar = AHCI_PCI_BAR_CAVIUM;
if (pdev->device == 0xa084)
ahci_pci_bar = AHCI_PCI_BAR_CAVIUM_GEN5;
}
/* acquire resources */
rc = pcim_enable_device(pdev);