blob: b70987892dfec0ff0ee2549964b78cf0eefde109 [file] [log] [blame]
Ben Hutchings8ceee662008-04-27 12:55:59 +01001/****************************************************************************
2 * Driver for Solarflare Solarstorm network controllers and boards
Ben Hutchings04300d22008-12-12 21:48:09 -08003 * Copyright 2007-2008 Solarflare Communications Inc.
Ben Hutchings8ceee662008-04-27 12:55:59 +01004 *
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 as published
7 * by the Free Software Foundation, incorporated herein by reference.
8 */
9
10#include "net_driver.h"
11#include "phy.h"
12#include "boards.h"
13#include "efx.h"
Ben Hutchings3e133c42008-11-04 20:34:56 +000014#include "workarounds.h"
Ben Hutchings8ceee662008-04-27 12:55:59 +010015
16/* Macros for unpacking the board revision */
17/* The revision info is in host byte order. */
18#define BOARD_TYPE(_rev) (_rev >> 8)
19#define BOARD_MAJOR(_rev) ((_rev >> 4) & 0xf)
20#define BOARD_MINOR(_rev) (_rev & 0xf)
21
22/* Blink support. If the PHY has no auto-blink mode so we hang it off a timer */
23#define BLINK_INTERVAL (HZ/2)
24
25static void blink_led_timer(unsigned long context)
26{
27 struct efx_nic *efx = (struct efx_nic *)context;
28 struct efx_blinker *bl = &efx->board_info.blinker;
Ben Hutchings8129d212009-02-27 13:08:03 +000029 efx->board_info.set_id_led(efx, bl->state);
Ben Hutchings8ceee662008-04-27 12:55:59 +010030 bl->state = !bl->state;
Ben Hutchings4cc58bd2008-05-16 21:13:57 +010031 if (bl->resubmit)
32 mod_timer(&bl->timer, jiffies + BLINK_INTERVAL);
Ben Hutchings8ceee662008-04-27 12:55:59 +010033}
34
Ben Hutchingsdc8cfa52008-09-01 12:46:50 +010035static void board_blink(struct efx_nic *efx, bool blink)
Ben Hutchings8ceee662008-04-27 12:55:59 +010036{
37 struct efx_blinker *blinker = &efx->board_info.blinker;
38
39 /* The rtnl mutex serialises all ethtool ioctls, so
40 * nothing special needs doing here. */
41 if (blink) {
Ben Hutchingsdc8cfa52008-09-01 12:46:50 +010042 blinker->resubmit = true;
43 blinker->state = false;
Ben Hutchings8ceee662008-04-27 12:55:59 +010044 setup_timer(&blinker->timer, blink_led_timer,
45 (unsigned long)efx);
Ben Hutchings4cc58bd2008-05-16 21:13:57 +010046 mod_timer(&blinker->timer, jiffies + BLINK_INTERVAL);
Ben Hutchings8ceee662008-04-27 12:55:59 +010047 } else {
Ben Hutchingsdc8cfa52008-09-01 12:46:50 +010048 blinker->resubmit = false;
Ben Hutchings8ceee662008-04-27 12:55:59 +010049 if (blinker->timer.function)
50 del_timer_sync(&blinker->timer);
Ben Hutchings8129d212009-02-27 13:08:03 +000051 efx->board_info.init_leds(efx);
Ben Hutchings8ceee662008-04-27 12:55:59 +010052 }
53}
54
55/*****************************************************************************
Ben Hutchings3e133c42008-11-04 20:34:56 +000056 * Support for LM87 sensor chip used on several boards
57 */
58#define LM87_REG_ALARMS1 0x41
59#define LM87_REG_ALARMS2 0x42
60#define LM87_IN_LIMITS(nr, _min, _max) \
61 0x2B + (nr) * 2, _max, 0x2C + (nr) * 2, _min
62#define LM87_AIN_LIMITS(nr, _min, _max) \
63 0x3B + (nr), _max, 0x1A + (nr), _min
64#define LM87_TEMP_INT_LIMITS(_min, _max) \
65 0x39, _max, 0x3A, _min
66#define LM87_TEMP_EXT1_LIMITS(_min, _max) \
67 0x37, _max, 0x38, _min
68
69#define LM87_ALARM_TEMP_INT 0x10
70#define LM87_ALARM_TEMP_EXT1 0x20
71
72#if defined(CONFIG_SENSORS_LM87) || defined(CONFIG_SENSORS_LM87_MODULE)
73
74static int efx_init_lm87(struct efx_nic *efx, struct i2c_board_info *info,
75 const u8 *reg_values)
76{
77 struct i2c_client *client = i2c_new_device(&efx->i2c_adap, info);
78 int rc;
79
80 if (!client)
81 return -EIO;
82
83 while (*reg_values) {
84 u8 reg = *reg_values++;
85 u8 value = *reg_values++;
86 rc = i2c_smbus_write_byte_data(client, reg, value);
87 if (rc)
88 goto err;
89 }
90
91 efx->board_info.hwmon_client = client;
92 return 0;
93
94err:
95 i2c_unregister_device(client);
96 return rc;
97}
98
99static void efx_fini_lm87(struct efx_nic *efx)
100{
101 i2c_unregister_device(efx->board_info.hwmon_client);
102}
103
104static int efx_check_lm87(struct efx_nic *efx, unsigned mask)
105{
106 struct i2c_client *client = efx->board_info.hwmon_client;
107 s32 alarms1, alarms2;
108
109 /* If link is up then do not monitor temperature */
110 if (EFX_WORKAROUND_7884(efx) && efx->link_up)
111 return 0;
112
113 alarms1 = i2c_smbus_read_byte_data(client, LM87_REG_ALARMS1);
114 alarms2 = i2c_smbus_read_byte_data(client, LM87_REG_ALARMS2);
115 if (alarms1 < 0)
116 return alarms1;
117 if (alarms2 < 0)
118 return alarms2;
119 alarms1 &= mask;
120 alarms2 &= mask >> 8;
121 if (alarms1 || alarms2) {
122 EFX_ERR(efx,
123 "LM87 detected a hardware failure (status %02x:%02x)"
124 "%s%s\n",
125 alarms1, alarms2,
126 (alarms1 & LM87_ALARM_TEMP_INT) ? " INTERNAL" : "",
127 (alarms1 & LM87_ALARM_TEMP_EXT1) ? " EXTERNAL" : "");
128 return -ERANGE;
129 }
130
131 return 0;
132}
133
134#else /* !CONFIG_SENSORS_LM87 */
135
136static inline int
137efx_init_lm87(struct efx_nic *efx, struct i2c_board_info *info,
138 const u8 *reg_values)
139{
140 return 0;
141}
142static inline void efx_fini_lm87(struct efx_nic *efx)
143{
144}
145static inline int efx_check_lm87(struct efx_nic *efx, unsigned mask)
146{
147 return 0;
148}
149
150#endif /* CONFIG_SENSORS_LM87 */
151
152/*****************************************************************************
Ben Hutchings8ceee662008-04-27 12:55:59 +0100153 * Support for the SFE4002
154 *
155 */
Ben Hutchings3e133c42008-11-04 20:34:56 +0000156static u8 sfe4002_lm87_channel = 0x03; /* use AIN not FAN inputs */
157
158static const u8 sfe4002_lm87_regs[] = {
159 LM87_IN_LIMITS(0, 0x83, 0x91), /* 2.5V: 1.8V +/- 5% */
160 LM87_IN_LIMITS(1, 0x51, 0x5a), /* Vccp1: 1.2V +/- 5% */
161 LM87_IN_LIMITS(2, 0xb6, 0xca), /* 3.3V: 3.3V +/- 5% */
162 LM87_IN_LIMITS(3, 0xb0, 0xc9), /* 5V: 4.6-5.2V */
163 LM87_IN_LIMITS(4, 0xb0, 0xe0), /* 12V: 11-14V */
164 LM87_IN_LIMITS(5, 0x44, 0x4b), /* Vccp2: 1.0V +/- 5% */
165 LM87_AIN_LIMITS(0, 0xa0, 0xb2), /* AIN1: 1.66V +/- 5% */
166 LM87_AIN_LIMITS(1, 0x91, 0xa1), /* AIN2: 1.5V +/- 5% */
167 LM87_TEMP_INT_LIMITS(10, 60), /* board */
168 LM87_TEMP_EXT1_LIMITS(10, 70), /* Falcon */
169 0
170};
171
172static struct i2c_board_info sfe4002_hwmon_info = {
173 I2C_BOARD_INFO("lm87", 0x2e),
174 .platform_data = &sfe4002_lm87_channel,
175 .irq = -1,
176};
177
Ben Hutchings8ceee662008-04-27 12:55:59 +0100178/****************************************************************************/
179/* LED allocations. Note that on rev A0 boards the schematic and the reality
180 * differ: red and green are swapped. Below is the fixed (A1) layout (there
181 * are only 3 A0 boards in existence, so no real reason to make this
182 * conditional).
183 */
184#define SFE4002_FAULT_LED (2) /* Red */
185#define SFE4002_RX_LED (0) /* Green */
186#define SFE4002_TX_LED (1) /* Amber */
187
Ben Hutchings8129d212009-02-27 13:08:03 +0000188static void sfe4002_init_leds(struct efx_nic *efx)
Ben Hutchings8ceee662008-04-27 12:55:59 +0100189{
190 /* Set the TX and RX LEDs to reflect status and activity, and the
191 * fault LED off */
192 xfp_set_led(efx, SFE4002_TX_LED,
193 QUAKE_LED_TXLINK | QUAKE_LED_LINK_ACTSTAT);
194 xfp_set_led(efx, SFE4002_RX_LED,
195 QUAKE_LED_RXLINK | QUAKE_LED_LINK_ACTSTAT);
196 xfp_set_led(efx, SFE4002_FAULT_LED, QUAKE_LED_OFF);
Ben Hutchings8ceee662008-04-27 12:55:59 +0100197}
198
Ben Hutchings8129d212009-02-27 13:08:03 +0000199static void sfe4002_set_id_led(struct efx_nic *efx, bool state)
Ben Hutchings8ceee662008-04-27 12:55:59 +0100200{
201 xfp_set_led(efx, SFE4002_FAULT_LED, state ? QUAKE_LED_ON :
202 QUAKE_LED_OFF);
203}
204
Ben Hutchings3e133c42008-11-04 20:34:56 +0000205static int sfe4002_check_hw(struct efx_nic *efx)
206{
207 /* A0 board rev. 4002s report a temperature fault the whole time
208 * (bad sensor) so we mask it out. */
209 unsigned alarm_mask =
210 (efx->board_info.major == 0 && efx->board_info.minor == 0) ?
211 ~LM87_ALARM_TEMP_EXT1 : ~0;
212
213 return efx_check_lm87(efx, alarm_mask);
214}
215
Ben Hutchings8ceee662008-04-27 12:55:59 +0100216static int sfe4002_init(struct efx_nic *efx)
217{
Ben Hutchings3e133c42008-11-04 20:34:56 +0000218 int rc = efx_init_lm87(efx, &sfe4002_hwmon_info, sfe4002_lm87_regs);
219 if (rc)
220 return rc;
221 efx->board_info.monitor = sfe4002_check_hw;
Ben Hutchings8ceee662008-04-27 12:55:59 +0100222 efx->board_info.init_leds = sfe4002_init_leds;
Ben Hutchings8129d212009-02-27 13:08:03 +0000223 efx->board_info.set_id_led = sfe4002_set_id_led;
Ben Hutchings8ceee662008-04-27 12:55:59 +0100224 efx->board_info.blink = board_blink;
Ben Hutchings3e133c42008-11-04 20:34:56 +0000225 efx->board_info.fini = efx_fini_lm87;
Ben Hutchings8ceee662008-04-27 12:55:59 +0100226 return 0;
227}
228
229/* This will get expanded as board-specific details get moved out of the
230 * PHY drivers. */
231struct efx_board_data {
Ben Hutchings04300d22008-12-12 21:48:09 -0800232 enum efx_board_type type;
Ben Hutchings8ceee662008-04-27 12:55:59 +0100233 const char *ref_model;
234 const char *gen_type;
235 int (*init) (struct efx_nic *nic);
236};
237
Ben Hutchings8ceee662008-04-27 12:55:59 +0100238
239static struct efx_board_data board_data[] = {
Ben Hutchings04300d22008-12-12 21:48:09 -0800240 { EFX_BOARD_SFE4001, "SFE4001", "10GBASE-T adapter", sfe4001_init },
241 { EFX_BOARD_SFE4002, "SFE4002", "XFP adapter", sfe4002_init },
Ben Hutchings6f158d52008-12-12 22:00:49 -0800242 { EFX_BOARD_SFN4111T, "SFN4111T", "100/1000/10GBASE-T adapter",
243 sfn4111t_init },
Ben Hutchings8ceee662008-04-27 12:55:59 +0100244};
245
Ben Hutchings04300d22008-12-12 21:48:09 -0800246void efx_set_board_info(struct efx_nic *efx, u16 revision_info)
Ben Hutchings8ceee662008-04-27 12:55:59 +0100247{
Ben Hutchings04300d22008-12-12 21:48:09 -0800248 struct efx_board_data *data = NULL;
249 int i;
Ben Hutchings8ceee662008-04-27 12:55:59 +0100250
Ben Hutchings04300d22008-12-12 21:48:09 -0800251 efx->board_info.type = BOARD_TYPE(revision_info);
252 efx->board_info.major = BOARD_MAJOR(revision_info);
253 efx->board_info.minor = BOARD_MINOR(revision_info);
Ben Hutchings8ceee662008-04-27 12:55:59 +0100254
Ben Hutchings04300d22008-12-12 21:48:09 -0800255 for (i = 0; i < ARRAY_SIZE(board_data); i++)
256 if (board_data[i].type == efx->board_info.type)
257 data = &board_data[i];
Ben Hutchings8ceee662008-04-27 12:55:59 +0100258
Ben Hutchings04300d22008-12-12 21:48:09 -0800259 if (data) {
Ben Hutchings8ceee662008-04-27 12:55:59 +0100260 EFX_INFO(efx, "board is %s rev %c%d\n",
261 (efx->pci_dev->subsystem_vendor == EFX_VENDID_SFC)
262 ? data->ref_model : data->gen_type,
263 'A' + efx->board_info.major, efx->board_info.minor);
Ben Hutchings04300d22008-12-12 21:48:09 -0800264 efx->board_info.init = data->init;
265 } else {
266 EFX_ERR(efx, "unknown board type %d\n", efx->board_info.type);
267 }
Ben Hutchings8ceee662008-04-27 12:55:59 +0100268}