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pcm052: bk4: Add board_phy_config() for BK4 to setup ksz8081 phy

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BK4 requires setup of 50MHz reference clock for its KSZ8081 PHY devices.

Signed-off-by: Lukasz Majewski <lukma@denx.de>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
This commit is contained in:
Lukasz Majewski 2019-02-13 22:46:59 +01:00 committed by Stefano Babic
parent 15a4456903
commit bdc9fefcbf
1 changed files with 16 additions and 0 deletions
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16
board/phytec/pcm052/pcm052.c
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@ -15,6 +15,7 @@
#include <asm/arch/clock.h> #include <asm/arch/clock.h>
#include <led.h> #include <led.h>
#include <environment.h> #include <environment.h>
#include <miiphy.h>
DECLARE_GLOBAL_DATA_PTR; DECLARE_GLOBAL_DATA_PTR;
@ -382,6 +383,21 @@ int board_late_init(void)
return 0; 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 */ #endif /* CONFIG_TARGET_BK4R1 */
int checkboard(void) int checkboard(void)