mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-27 19:29:37 +00:00
sata_mv errata workaround for sata25 part 1
Part 1 of workaround for errata "sata#25" for the 60x1 series (the second half of this errata workaround is still in development. Bit22 of the GPIO port has to be set "on" when in NCQ mode. Signed-off-by: Mark Lord <mlord@pobox.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
This commit is contained in:
parent
3e4a139107
commit
dd2890f60f
1 changed files with 18 additions and 2 deletions
|
@ -1151,6 +1151,21 @@ static void mv_config_fbs(void __iomem *port_mmio, int enable_fbs)
|
|||
writelfl(new_ltmode, port_mmio + LTMODE_OFS);
|
||||
}
|
||||
|
||||
static void mv_60x1_errata_sata25(struct ata_port *ap, int want_ncq)
|
||||
{
|
||||
struct mv_host_priv *hpriv = ap->host->private_data;
|
||||
u32 old, new;
|
||||
|
||||
/* workaround for 88SX60x1 FEr SATA#25 (part 1) */
|
||||
old = readl(hpriv->base + MV_GPIO_PORT_CTL_OFS);
|
||||
if (want_ncq)
|
||||
new = old | (1 << 22);
|
||||
else
|
||||
new = old & ~(1 << 22);
|
||||
if (new != old)
|
||||
writel(new, hpriv->base + MV_GPIO_PORT_CTL_OFS);
|
||||
}
|
||||
|
||||
static void mv_edma_cfg(struct ata_port *ap, int want_ncq)
|
||||
{
|
||||
u32 cfg;
|
||||
|
@ -1164,10 +1179,11 @@ static void mv_edma_cfg(struct ata_port *ap, int want_ncq)
|
|||
if (IS_GEN_I(hpriv))
|
||||
cfg |= (1 << 8); /* enab config burst size mask */
|
||||
|
||||
else if (IS_GEN_II(hpriv))
|
||||
else if (IS_GEN_II(hpriv)) {
|
||||
cfg |= EDMA_CFG_RD_BRST_EXT | EDMA_CFG_WR_BUFF_LEN;
|
||||
mv_60x1_errata_sata25(ap, want_ncq);
|
||||
|
||||
else if (IS_GEN_IIE(hpriv)) {
|
||||
} else if (IS_GEN_IIE(hpriv)) {
|
||||
cfg |= (1 << 23); /* do not mask PM field in rx'd FIS */
|
||||
cfg |= (1 << 22); /* enab 4-entry host queue cache */
|
||||
if (HAS_PCI(ap->host))
|
||||
|
|
Loading…
Reference in a new issue