diff options
| author |   Tang Yuantian <Yuantian.Tang@freescale.com> | 2015-10-29 14:22:16 +0800 |
|---|---|---|
| committer |   Tejun Heo <tj@kernel.org> | 2015-10-31 09:52:15 +0900 |
| commit | 640847298e2b7f19e1376cf5a6fda0fce5d96fb2 (patch) | |
| tree | 85931ec915867792a8b9b9f4fd6aaf7394ea7aca /drivers/ata/ahci_qoriq.c | |
| parent | ahci: qoriq: Rename LS2085A SoC support code to LS2080A (diff) | |
| download | linux-dev-640847298e2b7f19e1376cf5a6fda0fce5d96fb2.tar.xz linux-dev-640847298e2b7f19e1376cf5a6fda0fce5d96fb2.zip | |
ahci: qoriq: Disable NCQ on ls2080a SoC
NCQ feature can't be used due to the erratum A-008473.
This patch disables NCQ as a workaround.
Signed-off-by: Tang Yuantian <Yuantian.Tang@freescale.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'drivers/ata/ahci_qoriq.c')
| -rw-r--r-- | drivers/ata/ahci_qoriq.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/ata/ahci_qoriq.c b/drivers/ata/ahci_qoriq.c index b9b691e83e17..d0f9de96e4ea 100644 --- a/drivers/ata/ahci_qoriq.c +++ b/drivers/ata/ahci_qoriq.c @@ -131,7 +131,7 @@ static struct ata_port_operations ahci_qoriq_ops = { .hardreset = ahci_qoriq_hardreset, }; -static const struct ata_port_info ahci_qoriq_port_info = { +static struct ata_port_info ahci_qoriq_port_info = { .flags = AHCI_FLAG_COMMON | ATA_FLAG_NCQ, .pio_mask = ATA_PIO4, .udma_mask = ATA_UDMA6, @@ -208,6 +208,12 @@ static int ahci_qoriq_probe(struct platform_device *pdev) if (rc) goto disable_resources; + /* Workaround for ls2080a */ + if (qoriq_priv->type == AHCI_LS2080A) { + hpriv->flags |= AHCI_HFLAG_NO_NCQ; + ahci_qoriq_port_info.flags &= ~ATA_FLAG_NCQ; + } + rc = ahci_platform_init_host(pdev, hpriv, &ahci_qoriq_port_info, &ahci_qoriq_sht); if (rc) |