Thread (15 messages) 15 messages, 2 authors, 2014-03-05

[PATCH v12 3/4] PHY: add APM X-Gene SoC 15Gbps Multi-purpose PHY driver

From: Felipe Balbi <hidden>
Date: 2014-02-27 19:05:05
Also in: linux-devicetree, linux-ide, linux-scsi, lkml

Hi,

On Thu, Feb 27, 2014 at 11:14:07AM -0700, Loc Ho wrote:
+/*
+ * This function is used to configure the PHY to operation as either SATA Gen1
+ * or Gen2 speed.
+ */
+static void xgene_phy_sata_force_gen(struct xgene_phy_ctx *ctx,
+				     int lane, int gen)
why do you need to *force* the generation ? Is this because of some
silicon errata ? It almost seems like this should be done through link
negotiation between both link partners.

-- 
balbi
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