From: s.hauer@pengutronix.de (Sascha Hauer)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 3/3] ARM: i.MX6: add ethernet phy fixup for KSZ9031
Date: Thu, 20 Jun 2013 17:34:33 +0200 [thread overview]
Message-ID: <1371742473-28026-4-git-send-email-s.hauer@pengutronix.de> (raw)
In-Reply-To: <1371742473-28026-1-git-send-email-s.hauer@pengutronix.de>
The KSZ9031 is used on the i.MX6 based Data Modul eDM-QMX6
board. It needs the same fixup to the rx/tx delays as other
i.MX6 boards.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
---
arch/arm/mach-imx/mach-imx6q.c | 23 +++++++++++++++++++++++
1 file changed, 23 insertions(+)
diff --git a/arch/arm/mach-imx/mach-imx6q.c b/arch/arm/mach-imx/mach-imx6q.c
index 69fae87..2f02875 100644
--- a/arch/arm/mach-imx/mach-imx6q.c
+++ b/arch/arm/mach-imx/mach-imx6q.c
@@ -113,6 +113,27 @@ static int ksz9021rn_phy_fixup(struct phy_device *phydev)
return 0;
}
+static void mmd_write_reg(struct phy_device *dev, int device, int reg, int val)
+{
+ phy_write(dev, 0x0d, device);
+ phy_write(dev, 0x0e, reg);
+ phy_write(dev, 0x0d, (1 << 14) | device);
+ phy_write(dev, 0x0e, val);
+}
+
+static int ksz9031rn_phy_fixup(struct phy_device *dev)
+{
+ /*
+ * min rx data delay, max rx/tx clock delay,
+ * min rx/tx control delay
+ */
+ mmd_write_reg(dev, 2, 4, 0);
+ mmd_write_reg(dev, 2, 5, 0);
+ mmd_write_reg(dev, 2, 8, 0x003ff);
+
+ return 0;
+}
+
static int ar8031_phy_fixup(struct phy_device *dev)
{
u16 val;
@@ -167,6 +188,8 @@ static void __init imx6q_enet_phy_init(void)
if (IS_BUILTIN(CONFIG_PHYLIB)) {
phy_register_fixup_for_uid(PHY_ID_KSZ9021, MICREL_PHY_ID_MASK,
ksz9021rn_phy_fixup);
+ phy_register_fixup_for_uid(PHY_ID_KSZ9031, MICREL_PHY_ID_MASK,
+ ksz9031rn_phy_fixup);
phy_register_fixup_for_uid(PHY_ID_AR8031, 0xffffffff,
ar8031_phy_fixup);
}
--
1.8.3.1
prev parent reply other threads:[~2013-06-20 15:34 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-06-20 15:34 [PATCH] i.MX6 ethernet phy fixup Sascha Hauer
2013-06-20 15:34 ` [PATCH 1/3] ARM: i.MX6: call ksz9021 phy fixup for all i.MX6 boards Sascha Hauer
2013-06-20 15:34 ` [PATCH 2/3] ARM: i.MX6: add ethernet phy fixup for AR8031 Sascha Hauer
2013-06-20 17:13 ` Michael Heimpold
2013-06-21 5:40 ` Shawn Guo
2013-06-20 15:34 ` Sascha Hauer [this message]
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