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/ti/davinci_emac.h"
23 
ksz8873_is_phy_connected(int phy_addr)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 
ksz8873_get_link_speed(int phy_addr)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 
ksz8873_init_phy(int phy_addr)43 int ksz8873_init_phy(int phy_addr)
44 {
45 	return 1;
46 }
47 
48 
ksz8873_auto_negotiate(int phy_addr)49 int ksz8873_auto_negotiate(int phy_addr)
50 {
51 	return dp83848_get_link_speed(phy_addr);
52 }
53