diff options
| author | Dinh Nguyen <dinguyen@opensource.altera.com> | 2014-11-13 11:23:41 -0600 |
|---|---|---|
| committer | Marek Vasut <marex@denx.de> | 2014-12-06 13:51:54 +0100 |
| commit | 74ae12e184a7cd30edc4d6853ed246abe98fffc4 (patch) | |
| tree | a2f38b364546b57b5249120b5846006dbdae1067 /board/altera | |
| parent | fa8278d702e7693b0188f77ac35d130166bcbfd4 (diff) | |
arm: socfpga: set skew settings for ethernet phy
Set the PHY skew settings for the ethernet phy on the SOCFPGA Cyclone5
hardware.
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>
Diffstat (limited to 'board/altera')
| -rw-r--r-- | board/altera/socfpga/socfpga_cyclone5.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/board/altera/socfpga/socfpga_cyclone5.c b/board/altera/socfpga/socfpga_cyclone5.c index ce625e54d0..772a58ed9e 100644 --- a/board/altera/socfpga/socfpga_cyclone5.c +++ b/board/altera/socfpga/socfpga_cyclone5.c @@ -12,7 +12,9 @@ #include <usb/s3c_udc.h> #include <usb_mass_storage.h> +#include <micrel.h> #include <netdev.h> +#include <phy.h> DECLARE_GLOBAL_DATA_PTR; @@ -44,6 +46,20 @@ int board_init(void) return 0; } +int board_phy_config(struct phy_device *phydev) +{ + /* + * These skew settings for the KSZ9021 ethernet phy is required for ethernet + * to work reliably on most flavors of cyclone5 boards. + */ + 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); +} + #ifdef CONFIG_USB_GADGET struct s3c_plat_otg_data socfpga_otg_data = { .regs_otg = CONFIG_USB_DWC2_REG_ADDR, |