The Vitesse VSC8601 RGMII PHY has internal delay for both Rx
and Tx clock lines. They are configured using 2 bits in extended
register 0x17.
Therefore CFG_VSC8601_SKEW_TX and CFG_VSC8601_SKEW_RX have
been introduced with valid values 0-3 giving 0.0, 1.4,1.7 and 2.0ns delay.
Signed-off-by: Andre Schwarz <[EMAIL PROTECTED]>
--
drivers/net/tsec.c | 6 ++++++
drivers/net/tsec.h | 4 ++++
2 files changed, 10 insertions(+), 0 deletions(-)
diff --git a/drivers/net/tsec.c b/drivers/net/tsec.c
index 9d22aa3..06250ae 100644
--- a/drivers/net/tsec.c
+++ b/drivers/net/tsec.c
@@ -1277,6 +1277,12 @@ struct phy_info phy_info_VSC8601 = {
{MIIM_CONTROL, MIIM_CONTROL_INIT, &mii_cr_init},
#ifdef CFG_VSC8601_SKEWFIX
{MIIM_VSC8601_EPHY_CON,MIIM_VSC8601_EPHY_CON_INIT_SKEW,NULL},
+#if defined(CFG_VSC8601_SKEW_TX) && defined(CFG_VSC8601_SKEW_RX)
+ {MIIM_EXT_PAGE_ACCESS,1,NULL},
+#define VSC8101_SKEW (CFG_VSC8601_SKEW_TX<<14)|(CFG_VSC8601_SKEW_RX<<12)
+ {MIIM_VSC8601_SKEW_CTRL,VSC8101_SKEW,NULL},
+ {MIIM_EXT_PAGE_ACCESS,0,NULL},
+#endif
#endif
{miim_end,}
},
diff --git a/drivers/net/tsec.h b/drivers/net/tsec.h
index cfa7d1a..e8776b0 100644
--- a/drivers/net/tsec.h
+++ b/drivers/net/tsec.h
@@ -112,6 +112,8 @@
#define MIIM_GBIT_CONTROL 0x9
#define MIIM_GBIT_CONTROL_INIT 0xe00
+#define MIIM_EXT_PAGE_ACCESS 0x1f
+
/* Broadcom BCM54xx -- taken from linux sungem_phy */
#define MIIM_BCM54xx_AUXSTATUS 0x19
#define MIIM_BCM54xx_AUXSTATUS_LINKMODE_MASK 0x0700
@@ -163,6 +165,8 @@
/* Vitesse VSC8601 Extended PHY Control Register 1 */
#define MIIM_VSC8601_EPHY_CON 0x17
#define MIIM_VSC8601_EPHY_CON_INIT_SKEW 0x1120
+#define MIIM_VSC8601_SKEW_CTRL 0x1c
+#define MIIM_VSC8601_EPHY_CON_INIT_SKEW 0x1120
/* 88E1011 PHY Status Register */
#define MIIM_88E1011_PHY_STATUS 0x11
MATRIX VISION GmbH, Talstraße 16, DE-71570 Oppenweiler - Registergericht:
Amtsgericht Stuttgart, HRB 271090
Geschäftsführer: Gerhard Thullner, Werner Armingeon, Uwe Furtner
-------------------------------------------------------------------------
This SF.net email is sponsored by the 2008 JavaOne(SM) Conference
Don't miss this year's exciting event. There's still time to save $100.
Use priority code J8TL2D2.
http://ad.doubleclick.net/clk;198757673;13503038;p?http://java.sun.com/javaone
_______________________________________________
U-Boot-Users mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/u-boot-users
