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[U-Boot] arm: socfpga: set skew settings for ethernet phy

Message ID 1415738748-3907-1-git-send-email-dinguyen@opensource.altera.com
State Superseded
Delegated to: Marek Vasut
Headers show

Commit Message

Dinh Nguyen Nov. 11, 2014, 8:45 p.m. UTC 
From: Dinh Nguyen <dinguyen@opensource.altera.com>

Set the PHY skew settings for the ethernet phy on the SOCFPGA devkit.

Signed-off-by: Dinh Nguyen <dinguyen@opensource.altera.com>
Cc: Vince Bridgers <vbridger@opensource.altera.com>
Cc: Pavel Machek <pavel@denx.de>
Cc: Marek Vasut <marex@denx.de>
Cc: Tom Rini <trini@ti.com>
Cc: Albert Aribaud <albert.u.boot@aribaud.net>
Cc: Wolfgang Denk <wd@denx.de>
---
 board/altera/socfpga/socfpga_cyclone5.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)
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Patch

diff --git a/board/altera/socfpga/socfpga_cyclone5.c b/board/altera/socfpga/socfpga_cyclone5.c
index 0f81d89..a2831c8 100644
--- a/board/altera/socfpga/socfpga_cyclone5.c
+++ b/board/altera/socfpga/socfpga_cyclone5.c
@@ -8,7 +8,9 @@ 
 #include <asm/arch/reset_manager.h>
 #include <asm/io.h>
 
+#include <micrel.h>
 #include <netdev.h>
+#include <phy.h>
 
 DECLARE_GLOBAL_DATA_PTR;
 
@@ -39,3 +41,13 @@  int board_init(void)
 
 	return 0;
 }
+
+int board_phy_config(struct phy_device *phydev)
+{
+	ksz9021_phy_extended_write(phydev, MII_KSZ9021_EXT_RGMII_RX_DATA_SKEW,
+				   0x0);
+	ksz9021_phy_extended_write(phydev, MII_KSZ9021_EXT_RGMII_TX_DATA_SKEW,
+				   0x0);
+	ksz9021_phy_extended_write(phydev, MII_KSZ9021_EXT_RGMII_CLOCK_SKEW,
+				   0xf0f0);
+}