1 /***********************license start***********************************
2 * Copyright (c) 2003-2016 Cavium Inc. ([email protected]). All rights
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38 ***********************license end**************************************/
39 #include <bdk.h>
40 #include <libbdk-hal/bdk-mdio.h>
41 #include <libbdk-hal/bdk-qlm.h>
42 #include <libbdk-hal/if/bdk-if.h>
43
44 /**
45 * Setup marvell PHYs
46 * This function sets up one port in a marvell 88E1512 in SGMII mode
47 */
setup_marvell_phy(bdk_node_t node,int mdio_bus,int mdio_addr)48 static void setup_marvell_phy(bdk_node_t node, int mdio_bus, int mdio_addr)
49 {
50 int phy_status = 0;
51
52 BDK_TRACE(PHY, "%s In SGMII mode for Marvell PHY 88E1512\n", __func__);
53 /* Switch to Page 18 */
54 phy_status = bdk_mdio_write(node, mdio_bus, mdio_addr, 22, 18);
55 if (phy_status < 0)
56 return;
57
58 phy_status = bdk_mdio_read(node, mdio_bus, mdio_addr, 22);
59 if (phy_status < 0)
60 return;
61
62 /* Change the Phy System mode from RGMII(default hw reset mode) to SGMII */
63 phy_status = bdk_mdio_write(node, mdio_bus, mdio_addr, 20, 1);
64 if (phy_status < 0)
65 return;
66
67 /* Requires a Software reset */
68 phy_status = bdk_mdio_write(node, mdio_bus, mdio_addr, 20, 0x8001);
69 if (phy_status < 0)
70 return;
71
72 phy_status = bdk_mdio_read(node, mdio_bus, mdio_addr, 20);
73 if (phy_status < 0)
74 return;
75
76 /* Change the Page back to 0 */
77 phy_status = bdk_mdio_write(node, mdio_bus, mdio_addr, 22, 0);
78 if (phy_status < 0)
79 return;
80
81 phy_status = bdk_mdio_read(node, mdio_bus, mdio_addr, 22);
82 if (phy_status < 0)
83 return;
84
85 phy_status = bdk_mdio_read(node, mdio_bus, mdio_addr, 17);
86 if (phy_status < 0)
87 return;
88 }
89
bdk_if_phy_marvell_setup(bdk_node_t node,int qlm,int mdio_bus,int phy_addr)90 int bdk_if_phy_marvell_setup(bdk_node_t node, int qlm, int mdio_bus, int phy_addr)
91 {
92 BDK_TRACE(PHY,"In %s\n",__func__);
93
94 /* Check if the PHY is marvell PHY we expect */
95 int phy_status = bdk_mdio_read(node, mdio_bus, phy_addr, BDK_MDIO_PHY_REG_ID1);
96 if (phy_status != 0x0141)
97 return 0;
98
99 /* Check that the GSER mode is SGMII */
100 /* Switch the marvell PHY to the correct mode */
101 bdk_qlm_modes_t qlm_mode = bdk_qlm_get_mode(node, qlm);
102
103 BDK_TRACE(PHY,"%s: QLM:%d QLM_MODE:%d\n",__func__, qlm, qlm_mode);
104
105 if ((qlm_mode != BDK_QLM_MODE_SGMII_1X1) &&
106 (qlm_mode != BDK_QLM_MODE_SGMII_2X1))
107 return 0;
108
109 BDK_TRACE(PHY,"%s: Detected Marvell Phy in SGMII mode\n", __func__);
110 for (int port = 0; port < 2; port++)
111 {
112 setup_marvell_phy(node, mdio_bus, phy_addr + port);
113 }
114 return 0;
115 }
116