diff options
Diffstat (limited to 'arch/arm/mach-davinci/et1011c.c')
-rw-r--r-- | arch/arm/mach-davinci/et1011c.c | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/arch/arm/mach-davinci/et1011c.c b/arch/arm/mach-davinci/et1011c.c new file mode 100644 index 00000000000..151020d45aa --- /dev/null +++ b/arch/arm/mach-davinci/et1011c.c @@ -0,0 +1,42 @@ +/* + * LSI ET1011C PHY Driver for TI DaVinci(TMS320DM6467) board. + * + * Copyright (C) 2010 Texas Instruments Incorporated - http://www.ti.com/ + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <net.h> +#include <miiphy.h> +#include <asm/arch/emac_defs.h> +#include "../../../drivers/net/davinci_emac.h" + +#ifdef CONFIG_DRIVER_TI_EMAC + +#ifdef CONFIG_CMD_NET + +/* LSI PHYSICAL LAYER TRANSCEIVER ET1011C */ + +#define MII_PHY_CONFIG_REG 22 + +/* PHY Config bits */ +#define PHY_SYS_CLK_EN (1 << 4) + +int et1011c_get_link_speed(int phy_addr) +{ + u_int16_t data; + + if (davinci_eth_phy_read(phy_addr, MII_STATUS_REG, &data) && (data & 0x04)) { + davinci_eth_phy_read(phy_addr, MII_PHY_CONFIG_REG, &data); + /* Enable 125MHz clock sourced from PHY */ + davinci_eth_phy_write(phy_addr, MII_PHY_CONFIG_REG, + data | PHY_SYS_CLK_EN); + return (1); + } + return (0); +} + +#endif /* CONFIG_CMD_NET */ + +#endif /* CONFIG_DRIVER_ETHER */ |