From 5946fdaee4ba449e8fbb5d403e1ed69437f916e8 Mon Sep 17 00:00:00 2001 From: Darren Stevens Date: Mon, 23 Jan 2017 14:38:28 -0500 Subject: [PATCH] pata_atiixp: Don't use unconnected secondary port on SB600/SB700 The SB600 and SB700 southbridge chips from ATI/AMD only have connections for the primary IDE port. As these chips have unique pci device ID's use these to mark the secondary port as 'dummy' Signed-off-by: Darren Stevens Signed-off-by: Tejun Heo --- drivers/ata/pata_atiixp.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/ata/pata_atiixp.c b/drivers/ata/pata_atiixp.c index 49d705c9f0f7..6c9aa95a9a05 100644 --- a/drivers/ata/pata_atiixp.c +++ b/drivers/ata/pata_atiixp.c @@ -278,6 +278,11 @@ static int atiixp_init_one(struct pci_dev *pdev, const struct pci_device_id *id) }; const struct ata_port_info *ppi[] = { &info, &info }; + /* SB600/700 don't have secondary port wired */ + if ((pdev->device == PCI_DEVICE_ID_ATI_IXP600_IDE) || + (pdev->device == PCI_DEVICE_ID_ATI_IXP700_IDE)) + ppi[1] = &ata_dummy_port_info; + return ata_pci_bmdma_init_one(pdev, ppi, &atiixp_sht, NULL, ATA_HOST_PARALLEL_SCAN); } -- 2.20.1