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Commit 0185b1b7 authored by Suman Tripathi's avatar Suman Tripathi Committed by Tejun Heo
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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: default avatarLoc Ho <lho@apm.com>
Signed-off-by: default avatarSuman Tripathi <stripathi@apm.com>
Signed-off-by: default avatarTejun Heo <tj@kernel.org>
parent aeae4dca

drivers/ata/ahci_xgene.c

+3 −3
Original line number Diff line number Diff line
@@ -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);