diff options
Diffstat (limited to 'arch/arm/cpu/arm926ejs/davinci/et1011c.c')
| -rw-r--r-- | arch/arm/cpu/arm926ejs/davinci/et1011c.c | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/arch/arm/cpu/arm926ejs/davinci/et1011c.c b/arch/arm/cpu/arm926ejs/davinci/et1011c.c new file mode 100644 index 0000000..da07345 --- /dev/null +++ b/arch/arm/cpu/arm926ejs/davinci/et1011c.c @@ -0,0 +1,55 @@ +/* + * LSI ET1011C PHY Driver for TI DaVinci(TMS320DM6467) board. + * + * Copyright (C) 2010 Texas Instruments Incorporated - http://www.ti.com/ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#include <common.h> +#include <net.h> +#include <miiphy.h> +#include <asm/arch/emac_defs.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(EMAC_MDIO_PHY_NUM, + MII_PHY_CONFIG_REG, &data); + /* Enable 125MHz clock sourced from PHY */ + davinci_eth_phy_write(EMAC_MDIO_PHY_NUM, + MII_PHY_CONFIG_REG, + data | PHY_SYS_CLK_EN); + return (1); + } + return (0); +} + +#endif /* CONFIG_CMD_NET */ + +#endif /* CONFIG_DRIVER_ETHER */ |