3 * Dirk Eibach, Guntermann & Drunck GmbH, eibach@gdsys.de
5 * SPDX-License-Identifier: GPL-2.0+
16 MIICMD_WAIT_FOR_VALUE,
28 * verify we are talking to a 88e1518
30 struct mii_setupcmd verify_88e1518[] = {
31 { MIICMD_SET, 22, 0x0000 },
32 { MIICMD_VERIFY_VALUE, 2, 0x0141, 0xffff },
33 { MIICMD_VERIFY_VALUE, 3, 0x0dd0, 0xfff0 },
37 * workaround for erratum mentioned in 88E1518 release notes
39 struct mii_setupcmd fixup_88e1518[] = {
40 { MIICMD_SET, 22, 0x00ff },
41 { MIICMD_SET, 17, 0x214b },
42 { MIICMD_SET, 16, 0x2144 },
43 { MIICMD_SET, 17, 0x0c28 },
44 { MIICMD_SET, 16, 0x2146 },
45 { MIICMD_SET, 17, 0xb233 },
46 { MIICMD_SET, 16, 0x214d },
47 { MIICMD_SET, 17, 0xcc0c },
48 { MIICMD_SET, 16, 0x2159 },
49 { MIICMD_SET, 22, 0x00fb },
50 { MIICMD_SET, 7, 0xc00d },
51 { MIICMD_SET, 22, 0x0000 },
55 * default initialization:
56 * - set RGMII receive timing to "receive clock transition when data stable"
57 * - set RGMII transmit timing to "transmit clock internally delayed"
58 * - set RGMII output impedance target to 78,8 Ohm
59 * - run output impedance calibration
60 * - set autonegotiation advertise to 1000FD only
62 struct mii_setupcmd default_88e1518[] = {
63 { MIICMD_SET, 22, 0x0002 },
64 { MIICMD_MODIFY, 21, 0x0030, 0x0030 },
65 { MIICMD_MODIFY, 25, 0x0000, 0x0003 },
66 { MIICMD_MODIFY, 24, 0x8000, 0x8000 },
67 { MIICMD_WAIT_FOR_VALUE, 24, 0x4000, 0x4000, 2000 },
68 { MIICMD_SET, 22, 0x0000 },
69 { MIICMD_MODIFY, 4, 0x0000, 0x01e0 },
70 { MIICMD_MODIFY, 9, 0x0200, 0x0300 },
74 * turn off CLK125 for PHY daughterboard
76 struct mii_setupcmd ch1fix_88e1518[] = {
77 { MIICMD_SET, 22, 0x0002 },
78 { MIICMD_MODIFY, 16, 0x0006, 0x0006 },
79 { MIICMD_SET, 22, 0x0000 },
83 * perform copper software reset
85 struct mii_setupcmd swreset_88e1518[] = {
86 { MIICMD_SET, 22, 0x0000 },
87 { MIICMD_MODIFY, 0, 0x8000, 0x8000 },
88 { MIICMD_WAIT_FOR_VALUE, 0, 0x0000, 0x8000, 2000 },
92 * special one for 88E1514:
93 * Force SGMII to Copper mode
95 struct mii_setupcmd mii_to_copper_88e1514[] = {
96 { MIICMD_SET, 22, 0x0012 },
97 { MIICMD_MODIFY, 20, 0x0001, 0x0007 },
98 { MIICMD_MODIFY, 20, 0x8000, 0x8000 },
99 { MIICMD_SET, 22, 0x0000 },
103 * turn off SGMII auto-negotiation
105 struct mii_setupcmd sgmii_autoneg_off_88e1518[] = {
106 { MIICMD_SET, 22, 0x0001 },
107 { MIICMD_MODIFY, 0, 0x0000, 0x1000 },
108 { MIICMD_MODIFY, 0, 0x8000, 0x8000 },
109 { MIICMD_SET, 22, 0x0000 },
113 * invert LED2 polarity
115 struct mii_setupcmd invert_led2_88e1514[] = {
116 { MIICMD_SET, 22, 0x0003 },
117 { MIICMD_MODIFY, 17, 0x0030, 0x0010 },
118 { MIICMD_SET, 22, 0x0000 },
121 static int process_setupcmd(const char *bus, unsigned char addr,
122 struct mii_setupcmd *setupcmd)
125 u8 reg = setupcmd->reg;
126 u16 data = setupcmd->data;
127 u16 mask = setupcmd->mask;
128 u32 timeout = setupcmd->timeout;
132 debug("mii %s:%u reg %2u ", bus, addr, reg);
134 switch (setupcmd->token) {
136 res = miiphy_read(bus, addr, reg, &orig_data);
139 debug("is %04x. (value %04x mask %04x) ", orig_data, data,
141 data = (orig_data & ~mask) | (data & mask);
144 debug("=> %04x\n", data);
145 res = miiphy_write(bus, addr, reg, data);
147 case MIICMD_VERIFY_VALUE:
148 res = miiphy_read(bus, addr, reg, &orig_data);
151 if ((orig_data & mask) != (data & mask))
153 debug("(value %04x mask %04x) == %04x? %s\n", data, mask,
154 orig_data, res ? "FAIL" : "PASS");
156 case MIICMD_WAIT_FOR_VALUE:
158 start = get_timer(0);
159 while ((res != 0) && (get_timer(start) < timeout)) {
160 res = miiphy_read(bus, addr, reg, &orig_data);
163 if ((orig_data & mask) != (data & mask))
166 debug("(value %04x mask %04x) == %04x? %s after %lu ms\n", data,
167 mask, orig_data, res ? "FAIL" : "PASS",
178 static int process_setup(const char *bus, unsigned char addr,
179 struct mii_setupcmd *setupcmd, unsigned int count)
184 for (k = 0; k < count; ++k) {
185 res = process_setupcmd(bus, addr, &setupcmd[k]);
187 printf("mii cmd %u on bus %s addr %u failed, aborting setup\n",
188 setupcmd[k].token, bus, addr);
196 int setup_88e1518(const char *bus, unsigned char addr)
200 res = process_setup(bus, addr,
201 verify_88e1518, ARRAY_SIZE(verify_88e1518));
205 res = process_setup(bus, addr,
206 fixup_88e1518, ARRAY_SIZE(fixup_88e1518));
210 res = process_setup(bus, addr,
211 default_88e1518, ARRAY_SIZE(default_88e1518));
216 res = process_setup(bus, addr,
217 ch1fix_88e1518, ARRAY_SIZE(ch1fix_88e1518));
222 res = process_setup(bus, addr,
223 swreset_88e1518, ARRAY_SIZE(swreset_88e1518));
230 int setup_88e1514(const char *bus, unsigned char addr)
234 res = process_setup(bus, addr,
235 verify_88e1518, ARRAY_SIZE(verify_88e1518));
239 res = process_setup(bus, addr,
240 fixup_88e1518, ARRAY_SIZE(fixup_88e1518));
244 res = process_setup(bus, addr,
245 mii_to_copper_88e1514,
246 ARRAY_SIZE(mii_to_copper_88e1514));
250 res = process_setup(bus, addr,
251 sgmii_autoneg_off_88e1518,
252 ARRAY_SIZE(sgmii_autoneg_off_88e1518));
256 res = process_setup(bus, addr,
258 ARRAY_SIZE(invert_led2_88e1514));
262 res = process_setup(bus, addr,
263 default_88e1518, ARRAY_SIZE(default_88e1518));
268 res = process_setup(bus, addr,
269 ch1fix_88e1518, ARRAY_SIZE(ch1fix_88e1518));
274 res = process_setup(bus, addr,
275 swreset_88e1518, ARRAY_SIZE(swreset_88e1518));