1 /*
2  * arch/arm/mach-orion5x/net2big-setup.c
3  *
4  * LaCie 2Big Network NAS setup
5  *
6  * Copyright (C) 2009 Simon Guinot <sguinot@lacie.com>
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 <plat/orion-gpio.h>
28 #include "common.h"
29 #include "mpp.h"
30 #include "orion5x.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,
69 	.end			= NET2BIG_NOR_BOOT_BASE
70 					+ NET2BIG_NOR_BOOT_SIZE - 1,
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. */
125 	orion_gpio_set_valid(NET2BIG_GPIO_SATA0_POWER, 1);
126 	orion_gpio_set_valid(NET2BIG_GPIO_SATA1_POWER, 1);
127 
128 	err = gpio_request(NET2BIG_GPIO_SATA0_POWER, "SATA0 power status");
129 	if (err == 0) {
130 		err = gpio_direction_input(NET2BIG_GPIO_SATA0_POWER);
131 		if (err)
132 			gpio_free(NET2BIG_GPIO_SATA0_POWER);
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) {
141 		err = gpio_direction_input(NET2BIG_GPIO_SATA1_POWER);
142 		if (err)
143 			gpio_free(NET2BIG_GPIO_SATA1_POWER);
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) {
152 		err = gpio_direction_output(NET2BIG_GPIO_SATA_POWER_REQ, 0);
153 		if (err)
154 			gpio_free(NET2BIG_GPIO_SATA_POWER_REQ);
155 	}
156 	if (err) {
157 		pr_err("net2big: failed to setup SATA power request GPIO\n");
158 		goto err_free_2;
159 	}
160 
161 	if (gpio_get_value(NET2BIG_GPIO_SATA0_POWER) &&
162 		gpio_get_value(NET2BIG_GPIO_SATA1_POWER)) {
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);
173 	gpio_set_value(NET2BIG_GPIO_SATA_POWER_REQ, 1);
174 	pr_info("net2big: power up SATA hard disks\n");
175 
176 	return;
177 
178 err_free_2:
179 	gpio_free(NET2BIG_GPIO_SATA1_POWER);
180 err_free_1:
181 	gpio_free(NET2BIG_GPIO_SATA0_POWER);
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",
224 		.gpio = NET2BIG_GPIO_PWR_BLUE_LED,
225 	},
226 	{
227 		.name = "net2big:red:sata0",
228 		.gpio = NET2BIG_GPIO_SATA0_RED_LED,
229 	},
230 	{
231 		.name = "net2big:red:sata1",
232 		.gpio = NET2BIG_GPIO_SATA1_RED_LED,
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. */
254 	err = gpio_request(NET2BIG_GPIO_PWR_LED_BLINK_STOP,
255 			   "Power LED blink stop");
256 	if (err == 0) {
257 		err = gpio_direction_output(NET2BIG_GPIO_PWR_LED_BLINK_STOP, 1);
258 		if (err)
259 			gpio_free(NET2BIG_GPIO_PWR_LED_BLINK_STOP);
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 	 */
268 	err = gpio_request(NET2BIG_GPIO_SATA0_BLUE_LED,
269 			   "SATA0 blue LED control");
270 	if (err == 0) {
271 		err = gpio_direction_output(NET2BIG_GPIO_SATA0_BLUE_LED, 1);
272 		if (err)
273 			gpio_free(NET2BIG_GPIO_SATA0_BLUE_LED);
274 	}
275 	if (err)
276 		pr_err("net2big: failed to setup SATA0 blue LED GPIO\n");
277 
278 	err = gpio_request(NET2BIG_GPIO_SATA1_BLUE_LED,
279 			   "SATA1 blue LED control");
280 	if (err == 0) {
281 		err = gpio_direction_output(NET2BIG_GPIO_SATA1_BLUE_LED, 1);
282 		if (err)
283 			gpio_free(NET2BIG_GPIO_SATA1_BLUE_LED);
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,
306 		.gpio		= NET2BIG_GPIO_POWER_SWITCH_OFF,
307 		.desc		= "Power rocker switch (auto|off)",
308 		.active_low	= 0,
309 	},
310 	{
311 		.type		= EV_SW,
312 		.code		= NET2BIG_SWITCH_POWER_ON,
313 		.gpio		= NET2BIG_GPIO_POWER_SWITCH_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 */
358 	MPP14_SATA_LED,
359 	MPP15_SATA_LED,
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 {
375 	gpio_set_value(NET2BIG_GPIO_POWER_OFF, 1);
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 	 */
390 	orion5x_ehci0_init();
391 	orion5x_ehci1_init();
392 	orion5x_eth_init(&net2big_eth_data);
393 	orion5x_i2c_init();
394 	orion5x_uart0_init();
395 	orion5x_xor_init();
396 
397 	net2big_sata_power_init();
398 	orion5x_sata_init(&net2big_sata_data);
399 
400 	mvebu_mbus_add_window_by_id(ORION_MBUS_DEVBUS_BOOT_TARGET,
401 				    ORION_MBUS_DEVBUS_BOOT_ATTR,
402 				    NET2BIG_NOR_BOOT_BASE,
403 				    NET2BIG_NOR_BOOT_SIZE);
404 	platform_device_register(&net2big_nor_flash);
405 
406 	platform_device_register(&net2big_gpio_buttons);
407 	net2big_gpio_leds_init();
408 
409 	i2c_register_board_info(0, net2big_i2c_devices,
410 				ARRAY_SIZE(net2big_i2c_devices));
411 
412 	orion_gpio_set_valid(NET2BIG_GPIO_POWER_OFF, 1);
413 
414 	if (gpio_request(NET2BIG_GPIO_POWER_OFF, "power-off") == 0 &&
415 	    gpio_direction_output(NET2BIG_GPIO_POWER_OFF, 0) == 0)
416 		pm_power_off = net2big_power_off;
417 	else
418 		pr_err("net2big: failed to configure power-off GPIO\n");
419 
420 	pr_notice("net2big: Flash writing is not yet supported.\n");
421 }
422 
423 /* Warning: LaCie use a wrong mach-type (0x20e=526) in their bootloader. */
424 MACHINE_START(NET2BIG, "LaCie 2Big Network")
425 	.atag_offset	= 0x100,
426 	.nr_irqs	= ORION5X_NR_IRQS,
427 	.init_machine	= net2big_init,
428 	.map_io		= orion5x_map_io,
429 	.init_early	= orion5x_init_early,
430 	.init_irq	= orion5x_init_irq,
431 	.init_time	= orion5x_timer_init,
432 	.fixup		= tag_fixup_mem32,
433 	.restart	= orion5x_restart,
434 MACHINE_END
435 
436