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authorSuman Tripathi <stripathi@apm.com>2014-07-29 12:24:51 +0530
committerTejun Heo <tj@kernel.org>2014-07-29 10:25:58 -0400
commit0185b1b787962db38fdf74e1cab9b7a2619490a1 (patch)
treeacbb498fadfa1aaa635aa87a7f14303591f8c6f6
parentaeae4dcac5a91de9546c42a3be09c96479bfc3ff (diff)
downloadlinux-0185b1b787962db38fdf74e1cab9b7a2619490a1.tar.bz2
ahci_xgene: Use correct OOB tunning parameters for APM X-Gene SoC AHCI SATA Host controller driver.
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>
-rw-r--r--drivers/ata/ahci_xgene.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/ata/ahci_xgene.c b/drivers/ata/ahci_xgene.c
index 3db8eaae1576..997b4178249a 100644
--- 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);