xref: /openbmc/u-boot/drivers/net/fm/init.c (revision eca3aeb3)
1 /*
2  * Copyright 2011 Freescale Semiconductor, Inc.
3  *
4  * This program is free software; you can redistribute it and/or
5  * modify it under the terms of the GNU General Public License as
6  * published by the Free Software Foundation; either version 2 of
7  * the License, or (at your option) any later version.
8  *
9  * This program is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12  * GNU General Public License for more details.
13  *
14  * You should have received a copy of the GNU General Public License
15  * along with this program; if not, write to the Free Software
16  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
17  * MA 02111-1307 USA
18  */
19 #include <common.h>
20 #include <asm/io.h>
21 #include <asm/fsl_serdes.h>
22 
23 #include "fm.h"
24 
25 struct fm_eth_info fm_info[] = {
26 #if (CONFIG_SYS_NUM_FM1_DTSEC >= 1)
27 	FM_DTSEC_INFO_INITIALIZER(1, 1),
28 #endif
29 #if (CONFIG_SYS_NUM_FM1_DTSEC >= 2)
30 	FM_DTSEC_INFO_INITIALIZER(1, 2),
31 #endif
32 #if (CONFIG_SYS_NUM_FM1_DTSEC >= 3)
33 	FM_DTSEC_INFO_INITIALIZER(1, 3),
34 #endif
35 #if (CONFIG_SYS_NUM_FM1_DTSEC >= 4)
36 	FM_DTSEC_INFO_INITIALIZER(1, 4),
37 #endif
38 #if (CONFIG_SYS_NUM_FM1_DTSEC >= 5)
39 	FM_DTSEC_INFO_INITIALIZER(1, 5),
40 #endif
41 #if (CONFIG_SYS_NUM_FM1_DTSEC >= 6)
42 	FM_DTSEC_INFO_INITIALIZER(1, 6),
43 #endif
44 #if (CONFIG_SYS_NUM_FM1_DTSEC >= 7)
45 	FM_DTSEC_INFO_INITIALIZER(1, 9),
46 #endif
47 #if (CONFIG_SYS_NUM_FM1_DTSEC >= 8)
48 	FM_DTSEC_INFO_INITIALIZER(1, 10),
49 #endif
50 #if (CONFIG_SYS_NUM_FM2_DTSEC >= 1)
51 	FM_DTSEC_INFO_INITIALIZER(2, 1),
52 #endif
53 #if (CONFIG_SYS_NUM_FM2_DTSEC >= 2)
54 	FM_DTSEC_INFO_INITIALIZER(2, 2),
55 #endif
56 #if (CONFIG_SYS_NUM_FM2_DTSEC >= 3)
57 	FM_DTSEC_INFO_INITIALIZER(2, 3),
58 #endif
59 #if (CONFIG_SYS_NUM_FM2_DTSEC >= 4)
60 	FM_DTSEC_INFO_INITIALIZER(2, 4),
61 #endif
62 #if (CONFIG_SYS_NUM_FM2_DTSEC >= 5)
63 	FM_DTSEC_INFO_INITIALIZER(2, 5),
64 #endif
65 #if (CONFIG_SYS_NUM_FM2_DTSEC >= 6)
66 	FM_DTSEC_INFO_INITIALIZER(2, 6),
67 #endif
68 #if (CONFIG_SYS_NUM_FM2_DTSEC >= 7)
69 	FM_DTSEC_INFO_INITIALIZER(2, 9),
70 #endif
71 #if (CONFIG_SYS_NUM_FM2_DTSEC >= 8)
72 	FM_DTSEC_INFO_INITIALIZER(2, 10),
73 #endif
74 #if (CONFIG_SYS_NUM_FM1_10GEC >= 1)
75 	FM_TGEC_INFO_INITIALIZER(1, 1),
76 #endif
77 #if (CONFIG_SYS_NUM_FM1_10GEC >= 2)
78 	FM_TGEC_INFO_INITIALIZER(1, 2),
79 #endif
80 #if (CONFIG_SYS_NUM_FM2_10GEC >= 1)
81 	FM_TGEC_INFO_INITIALIZER(2, 1),
82 #endif
83 #if (CONFIG_SYS_NUM_FM2_10GEC >= 2)
84 	FM_TGEC_INFO_INITIALIZER(2, 2),
85 #endif
86 };
87 
88 int fm_standard_init(bd_t *bis)
89 {
90 	int i;
91 	struct ccsr_fman *reg;
92 
93 	reg = (void *)CONFIG_SYS_FSL_FM1_ADDR;
94 	if (fm_init_common(0, reg))
95 		return 0;
96 
97 	for (i = 0; i < ARRAY_SIZE(fm_info); i++) {
98 		if ((fm_info[i].enabled) && (fm_info[i].index == 1))
99 			fm_eth_initialize(reg, &fm_info[i]);
100 	}
101 
102 #if (CONFIG_SYS_NUM_FMAN == 2)
103 	reg = (void *)CONFIG_SYS_FSL_FM2_ADDR;
104 	if (fm_init_common(1, reg))
105 		return 0;
106 
107 	for (i = 0; i < ARRAY_SIZE(fm_info); i++) {
108 		if ((fm_info[i].enabled) && (fm_info[i].index == 2))
109 			fm_eth_initialize(reg, &fm_info[i]);
110 	}
111 #endif
112 
113 	return 1;
114 }
115 
116 /* simple linear search to map from port to array index */
117 static int fm_port_to_index(enum fm_port port)
118 {
119 	int i;
120 
121 	for (i = 0; i < ARRAY_SIZE(fm_info); i++) {
122 		if (fm_info[i].port == port)
123 			return i;
124 	}
125 
126 	return -1;
127 }
128 
129 /*
130  * Determine if an interface is actually active based on HW config
131  * we expect fman_port_enet_if() to report PHY_INTERFACE_MODE_NONE if
132  * the interface is not active based on HW cfg of the SoC
133  */
134 void fman_enet_init(void)
135 {
136 	int i;
137 
138 	for (i = 0; i < ARRAY_SIZE(fm_info); i++) {
139 		phy_interface_t enet_if;
140 
141 		enet_if = fman_port_enet_if(fm_info[i].port);
142 		if (enet_if != PHY_INTERFACE_MODE_NONE) {
143 			fm_info[i].enabled = 1;
144 			fm_info[i].enet_if = enet_if;
145 		} else {
146 			fm_info[i].enabled = 0;
147 		}
148 	}
149 
150 	return ;
151 }
152 
153 void fm_disable_port(enum fm_port port)
154 {
155 	int i = fm_port_to_index(port);
156 
157 	fm_info[i].enabled = 0;
158 	fman_disable_port(port);
159 }
160 
161 void fm_info_set_mdio(enum fm_port port, struct mii_dev *bus)
162 {
163 	int i = fm_port_to_index(port);
164 
165 	if (i == -1)
166 		return;
167 
168 	fm_info[i].bus = bus;
169 }
170 
171 void fm_info_set_phy_address(enum fm_port port, int address)
172 {
173 	int i = fm_port_to_index(port);
174 
175 	if (i == -1)
176 		return;
177 
178 	fm_info[i].phy_addr = address;
179 }
180 
181 /*
182  * Returns the PHY address for a given Fman port
183  *
184  * The port must be set via a prior call to fm_info_set_phy_address().
185  * A negative error code is returned if the port is invalid.
186  */
187 int fm_info_get_phy_address(enum fm_port port)
188 {
189 	int i = fm_port_to_index(port);
190 
191 	if (i == -1)
192 		return -1;
193 
194 	return fm_info[i].phy_addr;
195 }
196 
197 /*
198  * Returns the type of the data interface between the given MAC and its PHY.
199  * This is typically determined by the RCW.
200  */
201 phy_interface_t fm_info_get_enet_if(enum fm_port port)
202 {
203 	int i = fm_port_to_index(port);
204 
205 	if (i == -1)
206 		return PHY_INTERFACE_MODE_NONE;
207 
208 	if (fm_info[i].enabled)
209 		return fm_info[i].enet_if;
210 
211 	return PHY_INTERFACE_MODE_NONE;
212 }
213 
214 static void
215 __def_board_ft_fman_fixup_port(void *blob, char * prop, phys_addr_t pa,
216 				enum fm_port port, int offset)
217 {
218 	return ;
219 }
220 
221 void board_ft_fman_fixup_port(void *blob, char * prop, phys_addr_t pa,
222 				enum fm_port port, int offset)
223 	 __attribute__((weak, alias("__def_board_ft_fman_fixup_port")));
224 
225 static void ft_fixup_port(void *blob, struct fm_eth_info *info, char *prop)
226 {
227 	int off;
228 	uint32_t ph;
229 	phys_addr_t paddr = CONFIG_SYS_CCSRBAR_PHYS + info->compat_offset;
230 	u64 dtsec1_addr = (u64)CONFIG_SYS_CCSRBAR_PHYS +
231 				CONFIG_SYS_FSL_FM1_DTSEC1_OFFSET;
232 
233 	off = fdt_node_offset_by_compat_reg(blob, prop, paddr);
234 
235 	if (info->enabled) {
236 		fdt_fixup_phy_connection(blob, off, info->enet_if);
237 		board_ft_fman_fixup_port(blob, prop, paddr, info->port, off);
238 		return ;
239 	}
240 
241 #ifdef CONFIG_SYS_FMAN_V3
242 	/*
243 	 * Physically FM1_DTSEC9 and FM1_10GEC1 use the same dual-role MAC, when
244 	 * FM1_10GEC1 is enabled and  FM1_DTSEC9 is disabled, ensure that the
245 	 * dual-role MAC is not disabled, ditto for other dual-role MACs.
246 	 */
247 	if (((info->port == FM1_DTSEC9) && (PORT_IS_ENABLED(FM1_10GEC1)))	||
248 	    ((info->port == FM1_DTSEC10) && (PORT_IS_ENABLED(FM1_10GEC2)))	||
249 	    ((info->port == FM1_10GEC1) && (PORT_IS_ENABLED(FM1_DTSEC9)))	||
250 	    ((info->port == FM1_10GEC2) && (PORT_IS_ENABLED(FM1_DTSEC10)))
251 #if (CONFIG_SYS_NUM_FMAN == 2)
252 										||
253 	    ((info->port == FM2_DTSEC9) && (PORT_IS_ENABLED(FM2_10GEC1)))	||
254 	    ((info->port == FM2_DTSEC10) && (PORT_IS_ENABLED(FM2_10GEC2)))	||
255 	    ((info->port == FM2_10GEC1) && (PORT_IS_ENABLED(FM2_DTSEC9)))	||
256 	    ((info->port == FM2_10GEC2) && (PORT_IS_ENABLED(FM2_DTSEC10)))
257 #endif
258 	)
259 		return;
260 #endif
261 	/* board code might have caused offset to change */
262 	off = fdt_node_offset_by_compat_reg(blob, prop, paddr);
263 
264 	/* Don't disable FM1-DTSEC1 MAC as its used for MDIO */
265 	if (paddr != dtsec1_addr)
266 		fdt_status_disabled(blob, off); /* disable the MAC node */
267 
268 	/* disable the fsl,dpa-ethernet node that points to the MAC */
269 	ph = fdt_get_phandle(blob, off);
270 	do_fixup_by_prop(blob, "fsl,fman-mac", &ph, sizeof(ph),
271 		"status", "disabled", strlen("disabled") + 1, 1);
272 }
273 
274 void fdt_fixup_fman_ethernet(void *blob)
275 {
276 	int i;
277 
278 #ifdef CONFIG_SYS_FMAN_V3
279 	for (i = 0; i < ARRAY_SIZE(fm_info); i++)
280 		ft_fixup_port(blob, &fm_info[i], "fsl,fman-memac");
281 #else
282 	for (i = 0; i < ARRAY_SIZE(fm_info); i++) {
283 		if (fm_info[i].type == FM_ETH_1G_E)
284 			ft_fixup_port(blob, &fm_info[i], "fsl,fman-1g-mac");
285 		else
286 			ft_fixup_port(blob, &fm_info[i], "fsl,fman-10g-mac");
287 	}
288 #endif
289 }
290