1652f7c2eSAndy Fleming /*
2652f7c2eSAndy Fleming * Freescale SGMII Riser Card
3652f7c2eSAndy Fleming *
4652f7c2eSAndy Fleming * This driver supports the SGMII Riser card found on the
5652f7c2eSAndy Fleming * "DS" style of development board from Freescale.
6652f7c2eSAndy Fleming *
7652f7c2eSAndy Fleming * This software may be used and distributed according to the
8652f7c2eSAndy Fleming * terms of the GNU Public License, Version 2, incorporated
9652f7c2eSAndy Fleming * herein by reference.
10652f7c2eSAndy Fleming *
11652f7c2eSAndy Fleming * Copyright 2008 Freescale Semiconductor, Inc.
12652f7c2eSAndy Fleming *
13652f7c2eSAndy Fleming */
14652f7c2eSAndy Fleming
15652f7c2eSAndy Fleming #include <config.h>
16652f7c2eSAndy Fleming #include <common.h>
17feede8b0SAndy Fleming #include <net.h>
18*b08c8c48SMasahiro Yamada #include <linux/libfdt.h>
19652f7c2eSAndy Fleming #include <tsec.h>
20308bc61dSHongtao Jia #include <fdt_support.h>
21652f7c2eSAndy Fleming
fsl_sgmii_riser_init(struct tsec_info_struct * tsec_info,int num)22652f7c2eSAndy Fleming void fsl_sgmii_riser_init(struct tsec_info_struct *tsec_info, int num)
23652f7c2eSAndy Fleming {
24652f7c2eSAndy Fleming int i;
25652f7c2eSAndy Fleming
26652f7c2eSAndy Fleming for (i = 0; i < num; i++)
27652f7c2eSAndy Fleming if (tsec_info[i].flags & TSEC_SGMII)
28652f7c2eSAndy Fleming tsec_info[i].phyaddr += SGMII_RISER_PHY_OFFSET;
29652f7c2eSAndy Fleming }
30feede8b0SAndy Fleming
fsl_sgmii_riser_fdt_fixup(void * fdt)31feede8b0SAndy Fleming void fsl_sgmii_riser_fdt_fixup(void *fdt)
32feede8b0SAndy Fleming {
33feede8b0SAndy Fleming struct eth_device *dev;
34feede8b0SAndy Fleming int node;
35308bc61dSHongtao Jia int mdio_node;
36feede8b0SAndy Fleming int i = -1;
37feede8b0SAndy Fleming int etsec_num = 0;
38feede8b0SAndy Fleming
39feede8b0SAndy Fleming node = fdt_path_offset(fdt, "/aliases");
40feede8b0SAndy Fleming if (node < 0)
41feede8b0SAndy Fleming return;
42feede8b0SAndy Fleming
43feede8b0SAndy Fleming while ((dev = eth_get_dev_by_index(++i)) != NULL) {
44feede8b0SAndy Fleming struct tsec_private *priv;
45308bc61dSHongtao Jia int phy_node;
46feede8b0SAndy Fleming int enet_node;
47308bc61dSHongtao Jia uint32_t ph;
48308bc61dSHongtao Jia char sgmii_phy[16];
49feede8b0SAndy Fleming char enet[16];
50feede8b0SAndy Fleming const u32 *phyh;
51feede8b0SAndy Fleming const char *model;
52feede8b0SAndy Fleming const char *path;
53feede8b0SAndy Fleming
54feede8b0SAndy Fleming if (!strstr(dev->name, "eTSEC"))
55feede8b0SAndy Fleming continue;
56feede8b0SAndy Fleming
57308bc61dSHongtao Jia priv = dev->priv;
58308bc61dSHongtao Jia if (!(priv->flags & TSEC_SGMII)) {
59308bc61dSHongtao Jia etsec_num++;
60308bc61dSHongtao Jia continue;
61308bc61dSHongtao Jia }
62308bc61dSHongtao Jia
63308bc61dSHongtao Jia mdio_node = fdt_node_offset_by_compatible(fdt, -1,
64308bc61dSHongtao Jia "fsl,gianfar-mdio");
65308bc61dSHongtao Jia if (mdio_node < 0)
66308bc61dSHongtao Jia return;
67308bc61dSHongtao Jia
68308bc61dSHongtao Jia sprintf(sgmii_phy, "sgmii-phy@%d", etsec_num);
69308bc61dSHongtao Jia phy_node = fdt_subnode_offset(fdt, mdio_node, sgmii_phy);
70308bc61dSHongtao Jia if (phy_node > 0) {
71308bc61dSHongtao Jia fdt_increase_size(fdt, 32);
72308bc61dSHongtao Jia ph = fdt_create_phandle(fdt, phy_node);
73308bc61dSHongtao Jia if (!ph)
74308bc61dSHongtao Jia continue;
75308bc61dSHongtao Jia }
76308bc61dSHongtao Jia
77feede8b0SAndy Fleming sprintf(enet, "ethernet%d", etsec_num++);
78feede8b0SAndy Fleming path = fdt_getprop(fdt, node, enet, NULL);
79feede8b0SAndy Fleming if (!path) {
80feede8b0SAndy Fleming debug("No alias for %s\n", enet);
81feede8b0SAndy Fleming continue;
82feede8b0SAndy Fleming }
83feede8b0SAndy Fleming
84feede8b0SAndy Fleming enet_node = fdt_path_offset(fdt, path);
85feede8b0SAndy Fleming if (enet_node < 0)
86feede8b0SAndy Fleming continue;
87feede8b0SAndy Fleming
88feede8b0SAndy Fleming model = fdt_getprop(fdt, enet_node, "model", NULL);
89feede8b0SAndy Fleming
90feede8b0SAndy Fleming /*
91feede8b0SAndy Fleming * We only want to do this to eTSECs. On some platforms
92feede8b0SAndy Fleming * there are more than one type of gianfar-style ethernet
93feede8b0SAndy Fleming * controller, and as we are creating an implicit connection
94feede8b0SAndy Fleming * between ethernet nodes and eTSEC devices, it is best to
95feede8b0SAndy Fleming * make the connection use as much explicit information
96feede8b0SAndy Fleming * as exists.
97feede8b0SAndy Fleming */
98feede8b0SAndy Fleming if (!strstr(model, "TSEC"))
99feede8b0SAndy Fleming continue;
100feede8b0SAndy Fleming
101308bc61dSHongtao Jia if (phy_node < 0) {
102308bc61dSHongtao Jia /*
103308bc61dSHongtao Jia * This part is only for old device tree without
104308bc61dSHongtao Jia * sgmii_phy nodes. It's kept just for compatible
105308bc61dSHongtao Jia * reason. Soon to be deprecated if all device tree
106308bc61dSHongtao Jia * get updated.
107308bc61dSHongtao Jia */
108feede8b0SAndy Fleming phyh = fdt_getprop(fdt, enet_node, "phy-handle", NULL);
109feede8b0SAndy Fleming if (!phyh)
110feede8b0SAndy Fleming continue;
111feede8b0SAndy Fleming
112308bc61dSHongtao Jia phy_node = fdt_node_offset_by_phandle(fdt,
113308bc61dSHongtao Jia fdt32_to_cpu(*phyh));
114feede8b0SAndy Fleming
115feede8b0SAndy Fleming priv = dev->priv;
116feede8b0SAndy Fleming
117feede8b0SAndy Fleming if (priv->flags & TSEC_SGMII)
118308bc61dSHongtao Jia fdt_setprop_cell(fdt, phy_node, "reg",
119308bc61dSHongtao Jia priv->phyaddr);
120308bc61dSHongtao Jia } else {
121308bc61dSHongtao Jia fdt_setprop(fdt, enet_node, "phy-handle", &ph,
122308bc61dSHongtao Jia sizeof(ph));
123308bc61dSHongtao Jia fdt_setprop_string(fdt, enet_node,
124308bc61dSHongtao Jia "phy-connection-type",
125308bc61dSHongtao Jia phy_string_for_interface(
126308bc61dSHongtao Jia PHY_INTERFACE_MODE_SGMII));
127308bc61dSHongtao Jia }
128feede8b0SAndy Fleming }
129feede8b0SAndy Fleming }
130