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net2big-setup.c
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1 /*
2  * arch/arm/mach-orion5x/net2big-setup.c
3  *
4  * LaCie 2Big Network NAS setup
5  *
6  * Copyright (C) 2009 Simon Guinot <[email protected]>
7  *
8  * This file is licensed under the terms of the GNU General Public
9  * License version 2. This program is licensed "as is" without any
10  * warranty of any kind, whether express or implied.
11  */
12 
13 #include <linux/kernel.h>
14 #include <linux/init.h>
15 #include <linux/platform_device.h>
16 #include <linux/mtd/physmap.h>
17 #include <linux/mv643xx_eth.h>
18 #include <linux/leds.h>
19 #include <linux/gpio_keys.h>
20 #include <linux/input.h>
21 #include <linux/i2c.h>
22 #include <linux/ata_platform.h>
23 #include <linux/gpio.h>
24 #include <linux/delay.h>
25 #include <asm/mach-types.h>
26 #include <asm/mach/arch.h>
27 #include <mach/orion5x.h>
28 #include <plat/orion-gpio.h>
29 #include "common.h"
30 #include "mpp.h"
31 
32 /*****************************************************************************
33  * LaCie 2Big Network Info
34  ****************************************************************************/
35 
36 /*
37  * 512KB NOR flash Device bus boot chip select
38  */
39 
40 #define NET2BIG_NOR_BOOT_BASE 0xfff80000
41 #define NET2BIG_NOR_BOOT_SIZE SZ_512K
42 
43 /*****************************************************************************
44  * 512KB NOR Flash on Boot Device
45  ****************************************************************************/
46 
47 /*
48  * TODO: Check write support on flash MX29LV400CBTC-70G
49  */
50 
51 static struct mtd_partition net2big_partitions[] = {
52  {
53  .name = "Full512kb",
54  .size = MTDPART_SIZ_FULL,
55  .offset = 0x00000000,
56  .mask_flags = MTD_WRITEABLE,
57  },
58 };
59 
60 static struct physmap_flash_data net2big_nor_flash_data = {
61  .width = 1,
62  .parts = net2big_partitions,
63  .nr_parts = ARRAY_SIZE(net2big_partitions),
64 };
65 
66 static struct resource net2big_nor_flash_resource = {
67  .flags = IORESOURCE_MEM,
68  .start = NET2BIG_NOR_BOOT_BASE,
71 };
72 
73 static struct platform_device net2big_nor_flash = {
74  .name = "physmap-flash",
75  .id = 0,
76  .dev = {
77  .platform_data = &net2big_nor_flash_data,
78  },
79  .num_resources = 1,
80  .resource = &net2big_nor_flash_resource,
81 };
82 
83 /*****************************************************************************
84  * Ethernet
85  ****************************************************************************/
86 
87 static struct mv643xx_eth_platform_data net2big_eth_data = {
88  .phy_addr = MV643XX_ETH_PHY_ADDR(8),
89 };
90 
91 /*****************************************************************************
92  * I2C devices
93  ****************************************************************************/
94 
95 /*
96  * i2c addr | chip | description
97  * 0x32 | Ricoh 5C372b | RTC
98  * 0x50 | HT24LC08 | eeprom (1kB)
99  */
100 static struct i2c_board_info __initdata net2big_i2c_devices[] = {
101  {
102  I2C_BOARD_INFO("rs5c372b", 0x32),
103  }, {
104  I2C_BOARD_INFO("24c08", 0x50),
105  },
106 };
107 
108 /*****************************************************************************
109  * SATA
110  ****************************************************************************/
111 
112 static struct mv_sata_platform_data net2big_sata_data = {
113  .n_ports = 2,
114 };
115 
116 #define NET2BIG_GPIO_SATA_POWER_REQ 19
117 #define NET2BIG_GPIO_SATA0_POWER 23
118 #define NET2BIG_GPIO_SATA1_POWER 25
119 
120 static void __init net2big_sata_power_init(void)
121 {
122  int err;
123 
124  /* Configure GPIOs over MPP max number. */
127 
128  err = gpio_request(NET2BIG_GPIO_SATA0_POWER, "SATA0 power status");
129  if (err == 0) {
131  if (err)
133  }
134  if (err) {
135  pr_err("net2big: failed to setup SATA0 power GPIO\n");
136  return;
137  }
138 
139  err = gpio_request(NET2BIG_GPIO_SATA1_POWER, "SATA1 power status");
140  if (err == 0) {
142  if (err)
144  }
145  if (err) {
146  pr_err("net2big: failed to setup SATA1 power GPIO\n");
147  goto err_free_1;
148  }
149 
150  err = gpio_request(NET2BIG_GPIO_SATA_POWER_REQ, "SATA power request");
151  if (err == 0) {
153  if (err)
155  }
156  if (err) {
157  pr_err("net2big: failed to setup SATA power request GPIO\n");
158  goto err_free_2;
159  }
160 
163  return;
164  }
165 
166  /*
167  * SATA power up on both disk is done by pulling high the CPLD power
168  * request line. The 300ms delay is related to the CPLD clock and is
169  * needed to be sure that the CPLD has take into account the low line
170  * status.
171  */
172  msleep(300);
174  pr_info("net2big: power up SATA hard disks\n");
175 
176  return;
177 
178 err_free_2:
180 err_free_1:
182 
183  return;
184 }
185 
186 /*****************************************************************************
187  * GPIO LEDs
188  ****************************************************************************/
189 
190 /*
191  * The power front LEDs (blue and red) and SATA red LEDs are controlled via a
192  * single GPIO line and are compatible with the leds-gpio driver.
193  *
194  * The SATA blue LEDs have some hardware blink capabilities which are detailed
195  * in the following array:
196  *
197  * SATAx blue LED | SATAx activity | LED state
198  * | |
199  * 0 | 0 | blink (rate 300ms)
200  * 1 | 0 | off
201  * ? | 1 | on
202  *
203  * Notes: The blue and the red front LED's can't be on at the same time.
204  * Blue LED have priority.
205  */
206 
207 #define NET2BIG_GPIO_PWR_RED_LED 6
208 #define NET2BIG_GPIO_PWR_BLUE_LED 16
209 #define NET2BIG_GPIO_PWR_LED_BLINK_STOP 7
210 
211 #define NET2BIG_GPIO_SATA0_RED_LED 11
212 #define NET2BIG_GPIO_SATA1_RED_LED 10
213 
214 #define NET2BIG_GPIO_SATA0_BLUE_LED 17
215 #define NET2BIG_GPIO_SATA1_BLUE_LED 13
216 
217 static struct gpio_led net2big_leds[] = {
218  {
219  .name = "net2big:red:power",
220  .gpio = NET2BIG_GPIO_PWR_RED_LED,
221  },
222  {
223  .name = "net2big:blue:power",
225  },
226  {
227  .name = "net2big:red:sata0",
229  },
230  {
231  .name = "net2big:red:sata1",
233  },
234 };
235 
236 static struct gpio_led_platform_data net2big_led_data = {
237  .num_leds = ARRAY_SIZE(net2big_leds),
238  .leds = net2big_leds,
239 };
240 
241 static struct platform_device net2big_gpio_leds = {
242  .name = "leds-gpio",
243  .id = -1,
244  .dev = {
245  .platform_data = &net2big_led_data,
246  },
247 };
248 
249 static void __init net2big_gpio_leds_init(void)
250 {
251  int err;
252 
253  /* Stop initial CPLD slow red/blue blinking on power LED. */
255  "Power LED blink stop");
256  if (err == 0) {
258  if (err)
260  }
261  if (err)
262  pr_err("net2big: failed to setup power LED blink GPIO\n");
263 
264  /*
265  * Configure SATA0 and SATA1 blue LEDs to blink in relation with the
266  * hard disk activity.
267  */
269  "SATA0 blue LED control");
270  if (err == 0) {
272  if (err)
274  }
275  if (err)
276  pr_err("net2big: failed to setup SATA0 blue LED GPIO\n");
277 
279  "SATA1 blue LED control");
280  if (err == 0) {
282  if (err)
284  }
285  if (err)
286  pr_err("net2big: failed to setup SATA1 blue LED GPIO\n");
287 
288  platform_device_register(&net2big_gpio_leds);
289 }
290 
291 /****************************************************************************
292  * GPIO keys
293  ****************************************************************************/
294 
295 #define NET2BIG_GPIO_PUSH_BUTTON 18
296 #define NET2BIG_GPIO_POWER_SWITCH_ON 8
297 #define NET2BIG_GPIO_POWER_SWITCH_OFF 9
298 
299 #define NET2BIG_SWITCH_POWER_ON 0x1
300 #define NET2BIG_SWITCH_POWER_OFF 0x2
301 
302 static struct gpio_keys_button net2big_buttons[] = {
303  {
304  .type = EV_SW,
305  .code = NET2BIG_SWITCH_POWER_OFF,
307  .desc = "Power rocker switch (auto|off)",
308  .active_low = 0,
309  },
310  {
311  .type = EV_SW,
312  .code = NET2BIG_SWITCH_POWER_ON,
314  .desc = "Power rocker switch (on|auto)",
315  .active_low = 0,
316  },
317  {
318  .type = EV_KEY,
319  .code = KEY_POWER,
320  .gpio = NET2BIG_GPIO_PUSH_BUTTON,
321  .desc = "Front Push Button",
322  .active_low = 0,
323  },
324 };
325 
326 static struct gpio_keys_platform_data net2big_button_data = {
327  .buttons = net2big_buttons,
328  .nbuttons = ARRAY_SIZE(net2big_buttons),
329 };
330 
331 static struct platform_device net2big_gpio_buttons = {
332  .name = "gpio-keys",
333  .id = -1,
334  .dev = {
335  .platform_data = &net2big_button_data,
336  },
337 };
338 
339 /*****************************************************************************
340  * General Setup
341  ****************************************************************************/
342 
343 static unsigned int net2big_mpp_modes[] __initdata = {
344  MPP0_GPIO, /* Raid mode (bit 0) */
345  MPP1_GPIO, /* USB port 2 fuse (0 = Fail, 1 = Ok) */
346  MPP2_GPIO, /* Raid mode (bit 1) */
347  MPP3_GPIO, /* Board ID (bit 0) */
348  MPP4_GPIO, /* Fan activity (0 = Off, 1 = On) */
349  MPP5_GPIO, /* Fan fail detection */
350  MPP6_GPIO, /* Red front LED (0 = Off, 1 = On) */
351  MPP7_GPIO, /* Disable initial blinking on front LED */
352  MPP8_GPIO, /* Rear power switch (on|auto) */
353  MPP9_GPIO, /* Rear power switch (auto|off) */
354  MPP10_GPIO, /* SATA 1 red LED (0 = Off, 1 = On) */
355  MPP11_GPIO, /* SATA 0 red LED (0 = Off, 1 = On) */
356  MPP12_GPIO, /* Board ID (bit 1) */
357  MPP13_GPIO, /* SATA 1 blue LED blink control */
360  MPP16_GPIO, /* Blue front LED control */
361  MPP17_GPIO, /* SATA 0 blue LED blink control */
362  MPP18_GPIO, /* Front button (0 = Released, 1 = Pushed ) */
363  MPP19_GPIO, /* SATA{0,1} power On/Off request */
364  0,
365  /* 22: USB port 1 fuse (0 = Fail, 1 = Ok) */
366  /* 23: SATA 0 power status */
367  /* 24: Board power off */
368  /* 25: SATA 1 power status */
369 };
370 
371 #define NET2BIG_GPIO_POWER_OFF 24
372 
373 static void net2big_power_off(void)
374 {
376 }
377 
378 static void __init net2big_init(void)
379 {
380  /*
381  * Setup basic Orion functions. Need to be called early.
382  */
383  orion5x_init();
384 
385  orion5x_mpp_conf(net2big_mpp_modes);
386 
387  /*
388  * Configure peripherals.
389  */
392  orion5x_eth_init(&net2big_eth_data);
396 
397  net2big_sata_power_init();
398  orion5x_sata_init(&net2big_sata_data);
399 
402  platform_device_register(&net2big_nor_flash);
403 
404  platform_device_register(&net2big_gpio_buttons);
405  net2big_gpio_leds_init();
406 
407  i2c_register_board_info(0, net2big_i2c_devices,
408  ARRAY_SIZE(net2big_i2c_devices));
409 
411 
412  if (gpio_request(NET2BIG_GPIO_POWER_OFF, "power-off") == 0 &&
414  pm_power_off = net2big_power_off;
415  else
416  pr_err("net2big: failed to configure power-off GPIO\n");
417 
418  pr_notice("net2big: Flash writing is not yet supported.\n");
419 }
420 
421 /* Warning: LaCie use a wrong mach-type (0x20e=526) in their bootloader. */
422 MACHINE_START(NET2BIG, "LaCie 2Big Network")
423  .atag_offset = 0x100,
424  .init_machine = net2big_init,
425  .map_io = orion5x_map_io,
426  .init_early = orion5x_init_early,
427  .init_irq = orion5x_init_irq,
428  .timer = &orion5x_timer,
429  .fixup = tag_fixup_mem32,
430  .restart = orion5x_restart,
432