1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3  * LSI ET1011C PHY Driver for TI DaVinci(TMS320DM6467) board.
4  *
5  * Copyright (C) 2010 Texas Instruments Incorporated - http://www.ti.com/
6  */
7 
8 #include <common.h>
9 #include <net.h>
10 #include <miiphy.h>
11 #include <asm/arch/emac_defs.h>
12 #include "../../../drivers/net/ti/davinci_emac.h"
13 
14 #ifdef CONFIG_DRIVER_TI_EMAC
15 
16 #ifdef CONFIG_CMD_NET
17 
18 /* LSI PHYSICAL LAYER TRANSCEIVER ET1011C */
19 
20 #define MII_PHY_CONFIG_REG		22
21 
22 /* PHY Config bits */
23 #define PHY_SYS_CLK_EN			(1 << 4)
24 
et1011c_get_link_speed(int phy_addr)25 int et1011c_get_link_speed(int phy_addr)
26 {
27 	u_int16_t	data;
28 
29 	if (davinci_eth_phy_read(phy_addr, MII_STATUS_REG, &data) && (data & 0x04)) {
30 		davinci_eth_phy_read(phy_addr, MII_PHY_CONFIG_REG, &data);
31 		/* Enable 125MHz clock sourced from PHY */
32 		davinci_eth_phy_write(phy_addr, MII_PHY_CONFIG_REG,
33 			data | PHY_SYS_CLK_EN);
34 		return (1);
35 	}
36 	return (0);
37 }
38 
39 #endif	/* CONFIG_CMD_NET */
40 
41 #endif	/* CONFIG_DRIVER_ETHER */
42