ahci_xgene: Use correct OOB tunning parameters for APM X-Gene SoC AHCI SATA Host...

APM X-Gene SoC AHCI SATA Host controller driver requires
some correction of Phy Control OOB timing for the
COMINIT/COMWAKE parameters to correctly interoperate with
different kinds of disks.

Signed-off-by: Loc Ho <lho@apm.com>
Signed-off-by: Suman Tripathi <stripathi@apm.com>
Signed-off-by: Tejun Heo <tj@kernel.org>

diff --git a/drivers/ata/ahci_xgene.c b/drivers/ata/ahci_xgene.c
index 3db8eaa..997b417 100644 (file)
--- a/drivers/ata/ahci_xgene.c
+++ b/drivers/ata/ahci_xgene.c
@@ -163,11 +163,11 @@ static void xgene_ahci_set_phy_cfg(struct xgene_ahci_context *ctx, int channel)
        /* Disable fix rate */
        writel(0x0001fffe, mmio + PORTPHY1CFG);
        readl(mmio + PORTPHY1CFG); /* Force a barrier */
-       writel(0x5018461c, mmio + PORTPHY2CFG);
+       writel(0x28183219, mmio + PORTPHY2CFG);
        readl(mmio + PORTPHY2CFG); /* Force a barrier */
-       writel(0x1c081907, mmio + PORTPHY3CFG);
+       writel(0x13081008, mmio + PORTPHY3CFG);
        readl(mmio + PORTPHY3CFG); /* Force a barrier */
-       writel(0x1c080815, mmio + PORTPHY4CFG);
+       writel(0x00480815, mmio + PORTPHY4CFG);
        readl(mmio + PORTPHY4CFG); /* Force a barrier */
        /* Set window negotiation */
        val = readl(mmio + PORTPHY5CFG);