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      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 (at) 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