BK4 requires setup of 50MHz reference clock for its KSZ8081 PHY devices.
Signed-off-by: Lukasz Majewski lukma@denx.de
---
Changes in v3: None Changes in v2: None
board/phytec/pcm052/pcm052.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+)
diff --git a/board/phytec/pcm052/pcm052.c b/board/phytec/pcm052/pcm052.c index 1e443a5850..c30df5df9d 100644 --- a/board/phytec/pcm052/pcm052.c +++ b/board/phytec/pcm052/pcm052.c @@ -15,6 +15,7 @@ #include <asm/arch/clock.h> #include <led.h> #include <environment.h> +#include <miiphy.h>
DECLARE_GLOBAL_DATA_PTR;
@@ -382,6 +383,21 @@ int board_late_init(void)
return 0; } + +/** + * KSZ8081 + */ +#define MII_KSZ8081_REFERENCE_CLOCK_SELECT 0x1f +#define RMII_50MHz_CLOCK 0x8180 + +int board_phy_config(struct phy_device *phydev) +{ + /* Set 50 MHz reference clock */ + phy_write(phydev, MDIO_DEVAD_NONE, MII_KSZ8081_REFERENCE_CLOCK_SELECT, + RMII_50MHz_CLOCK); + + return genphy_config(phydev); +} #endif /* CONFIG_TARGET_BK4R1 */
int checkboard(void)