From: Suman Tripathi Date: Tue, 29 Jul 2014 06:54:51 +0000 (+0530) Subject: ahci_xgene: Use correct OOB tunning parameters for APM X-Gene SoC AHCI SATA Host... X-Git-Tag: v3.17-rc1~146^2~7 X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=0185b1b787962db38fdf74e1cab9b7a2619490a1;p=linux.git 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 Signed-off-by: Suman Tripathi Signed-off-by: Tejun Heo --- 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);