1 /*
2 * Copyright (c) 2021-2023 HPMicro
3 *
4 * SPDX-License-Identifier: BSD-3-Clause
5 *
6 */
7
8 /*---------------------------------------------------------------------
9 * Includes
10 *---------------------------------------------------------------------
11 */
12 #include "hpm_enet_drv.h"
13 #include "hpm_rtl8211_regs.h"
14 #include "hpm_rtl8211.h"
15
16 /*---------------------------------------------------------------------
17 * Internal API
18 *---------------------------------------------------------------------
19 */
rtl8211_check_id(ENET_Type * ptr)20 static bool rtl8211_check_id(ENET_Type *ptr)
21 {
22 uint16_t id1, id2;
23
24 id1 = enet_read_phy(ptr, RTL8211_ADDR, RTL8211_PHYID1);
25 id2 = enet_read_phy(ptr, RTL8211_ADDR, RTL8211_PHYID2);
26
27 if (RTL8211_PHYID1_OUI_MSB_GET(id1) == RTL8211_ID1 && RTL8211_PHYID2_OUI_LSB_GET(id2) == RTL8211_ID2) {
28 return true;
29 } else {
30 return false;
31 }
32 }
33
34 /*---------------------------------------------------------------------
35 * API
36 *---------------------------------------------------------------------
37 */
rtl8211_reset(ENET_Type * ptr)38 void rtl8211_reset(ENET_Type *ptr)
39 {
40 uint16_t data;
41
42 /* PHY reset */
43 enet_write_phy(ptr, RTL8211_ADDR, RTL8211_BMCR, RTL8211_BMCR_RESET_SET(1));
44
45 /* wait until the reset is completed */
46 do {
47 data = enet_read_phy(ptr, RTL8211_ADDR, RTL8211_BMCR);
48 } while (RTL8211_BMCR_RESET_GET(data));
49 }
50
rtl8211_basic_mode_default_config(ENET_Type * ptr,rtl8211_config_t * config)51 void rtl8211_basic_mode_default_config(ENET_Type *ptr, rtl8211_config_t *config)
52 {
53 (void)ptr;
54
55 config->loopback = false; /* Disable PCS loopback mode */
56 #if defined(__DISABLE_AUTO_NEGO) && (__DISABLE_AUTO_NEGO)
57 config->auto_negotiation = false; /* Disable Auto-Negotiation */
58 config->speed = enet_phy_port_speed_100mbps;
59 config->duplex = enet_phy_duplex_full;
60 #else
61 config->auto_negotiation = true; /* Enable Auto-Negotiation */
62 #endif
63 }
64
rtl8211_basic_mode_init(ENET_Type * ptr,rtl8211_config_t * config)65 bool rtl8211_basic_mode_init(ENET_Type *ptr, rtl8211_config_t *config)
66 {
67 uint16_t data = 0;
68
69 data |= RTL8211_BMCR_RESET_SET(0) /* Normal operation */
70 | RTL8211_BMCR_LOOPBACK_SET(config->loopback) /* configure PCS loopback mode */
71 | RTL8211_BMCR_ANE_SET(config->auto_negotiation) /* configure Auto-Negotiation */
72 | RTL8211_BMCR_PWD_SET(0) /* Normal operation */
73 | RTL8211_BMCR_ISOLATE_SET(0) /* Normal operation */
74 | RTL8211_BMCR_RESTART_AN_SET(0) /* Normal operation (ignored when Auto-Negotiation is disabled) */
75 | RTL8211_BMCR_COLLISION_TEST_SET(0); /* Normal operation */
76
77 if (config->auto_negotiation == 0) {
78 data |= RTL8211_BMCR_SPEED0_SET(config->speed) | RTL8211_BMCR_SPEED1_SET(config->speed >> 1); /* Set port speed */
79 data |= RTL8211_BMCR_DUPLEX_SET(config->duplex); /* Set duplex mode */
80 }
81
82 enet_write_phy(ptr, RTL8211_ADDR, RTL8211_BMCR, data);
83
84 /* check the id of rtl8211 */
85 if (rtl8211_check_id(ptr) == false) {
86 return false;
87 }
88
89 return true;
90 }
91
92
rtl8211_get_phy_status(ENET_Type * ptr,enet_phy_status_t * status)93 void rtl8211_get_phy_status(ENET_Type *ptr, enet_phy_status_t *status)
94 {
95 uint16_t data;
96
97 data = enet_read_phy(ptr, RTL8211_ADDR, RTL8211_PHYSR);
98 status->enet_phy_link = RTL8211_PHYSR_LINK_REAL_TIME_GET(data);
99 status->enet_phy_speed = RTL8211_PHYSR_SPEED_GET(data) == 0 ? enet_phy_port_speed_10mbps : RTL8211_PHYSR_SPEED_GET(data) == 1 ? enet_phy_port_speed_100mbps : enet_phy_port_speed_1000mbps;
100 status->enet_phy_duplex = RTL8211_PHYSR_DUPLEX_GET(data);
101 }
102