1 // SPDX-License-Identifier: GPL-2.0+ 2 /* 3 * Micrel KSZ8873 PHY Driver for TI DaVinci 4 * (TMS320DM644x) based boards. 5 * 6 * Copyright (C) 2011 Heiko Schocher <hsdenx.de> 7 * 8 * based on: 9 * National Semiconductor DP83848 PHY Driver for TI DaVinci 10 * (TMS320DM644x) based boards. 11 * 12 * Copyright (C) 2007 Sergey Kubushyn <ksi@koi8.net> 13 * 14 * -------------------------------------------------------- 15 */ 16 17 #include <common.h> 18 #include <miiphy.h> 19 #include <net.h> 20 #include <asm/arch/emac_defs.h> 21 #include <asm/io.h> 22 #include "../../../drivers/net/davinci_emac.h" 23 24 int ksz8873_is_phy_connected(int phy_addr) 25 { 26 u_int16_t dummy; 27 28 return davinci_eth_phy_read(phy_addr, MII_PHYSID1, &dummy); 29 } 30 31 int ksz8873_get_link_speed(int phy_addr) 32 { 33 emac_regs *emac = (emac_regs *)EMAC_BASE_ADDR; 34 35 /* we always have a link to the switch, 100 FD */ 36 writel((EMAC_MACCONTROL_MIIEN_ENABLE | 37 EMAC_MACCONTROL_FULLDUPLEX_ENABLE), 38 &emac->MACCONTROL); 39 return 1; 40 } 41 42 43 int ksz8873_init_phy(int phy_addr) 44 { 45 return 1; 46 } 47 48 49 int ksz8873_auto_negotiate(int phy_addr) 50 { 51 return dp83848_get_link_speed(phy_addr); 52 } 53