1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3  * arch/arm/mach-orion5x/net2big-setup.c
4  *
5  * LaCie 2Big Network NAS setup
6  *
7  * Copyright (C) 2009 Simon Guinot <sguinot@lacie.com>
8  */
9 
10 #include <linux/kernel.h>
11 #include <linux/init.h>
12 #include <linux/platform_device.h>
13 #include <linux/mtd/physmap.h>
14 #include <linux/mv643xx_eth.h>
15 #include <linux/leds.h>
16 #include <linux/gpio_keys.h>
17 #include <linux/input.h>
18 #include <linux/i2c.h>
19 #include <linux/ata_platform.h>
20 #include <linux/gpio.h>
21 #include <linux/delay.h>
22 #include <asm/mach-types.h>
23 #include <asm/mach/arch.h>
24 #include <plat/orion-gpio.h>
25 #include "common.h"
26 #include "mpp.h"
27 #include "orion5x.h"
28 
29 /*****************************************************************************
30  * LaCie 2Big Network Info
31  ****************************************************************************/
32 
33 /*
34  * 512KB NOR flash Device bus boot chip select
35  */
36 
37 #define NET2BIG_NOR_BOOT_BASE		0xfff80000
38 #define NET2BIG_NOR_BOOT_SIZE		SZ_512K
39 
40 /*****************************************************************************
41  * 512KB NOR Flash on Boot Device
42  ****************************************************************************/
43 
44 /*
45  * TODO: Check write support on flash MX29LV400CBTC-70G
46  */
47 
48 static struct mtd_partition net2big_partitions[] = {
49 	{
50 		.name		= "Full512kb",
51 		.size		= MTDPART_SIZ_FULL,
52 		.offset		= 0x00000000,
53 		.mask_flags	= MTD_WRITEABLE,
54 	},
55 };
56 
57 static struct physmap_flash_data net2big_nor_flash_data = {
58 	.width		= 1,
59 	.parts		= net2big_partitions,
60 	.nr_parts	= ARRAY_SIZE(net2big_partitions),
61 };
62 
63 static struct resource net2big_nor_flash_resource = {
64 	.flags			= IORESOURCE_MEM,
65 	.start			= NET2BIG_NOR_BOOT_BASE,
66 	.end			= NET2BIG_NOR_BOOT_BASE
67 					+ NET2BIG_NOR_BOOT_SIZE - 1,
68 };
69 
70 static struct platform_device net2big_nor_flash = {
71 	.name			= "physmap-flash",
72 	.id			= 0,
73 	.dev		= {
74 		.platform_data	= &net2big_nor_flash_data,
75 	},
76 	.num_resources		= 1,
77 	.resource		= &net2big_nor_flash_resource,
78 };
79 
80 /*****************************************************************************
81  * Ethernet
82  ****************************************************************************/
83 
84 static struct mv643xx_eth_platform_data net2big_eth_data = {
85 	.phy_addr	= MV643XX_ETH_PHY_ADDR(8),
86 };
87 
88 /*****************************************************************************
89  * I2C devices
90  ****************************************************************************/
91 
92 /*
93  * i2c addr | chip         | description
94  * 0x32     | Ricoh 5C372b | RTC
95  * 0x50     | HT24LC08     | eeprom (1kB)
96  */
97 static struct i2c_board_info __initdata net2big_i2c_devices[] = {
98 	{
99 		I2C_BOARD_INFO("rs5c372b", 0x32),
100 	}, {
101 		I2C_BOARD_INFO("24c08", 0x50),
102 	},
103 };
104 
105 /*****************************************************************************
106  * SATA
107  ****************************************************************************/
108 
109 static struct mv_sata_platform_data net2big_sata_data = {
110 	.n_ports	= 2,
111 };
112 
113 #define NET2BIG_GPIO_SATA_POWER_REQ	19
114 #define NET2BIG_GPIO_SATA0_POWER	23
115 #define NET2BIG_GPIO_SATA1_POWER	25
116 
net2big_sata_power_init(void)117 static void __init net2big_sata_power_init(void)
118 {
119 	int err;
120 
121 	/* Configure GPIOs over MPP max number. */
122 	orion_gpio_set_valid(NET2BIG_GPIO_SATA0_POWER, 1);
123 	orion_gpio_set_valid(NET2BIG_GPIO_SATA1_POWER, 1);
124 
125 	err = gpio_request(NET2BIG_GPIO_SATA0_POWER, "SATA0 power status");
126 	if (err == 0) {
127 		err = gpio_direction_input(NET2BIG_GPIO_SATA0_POWER);
128 		if (err)
129 			gpio_free(NET2BIG_GPIO_SATA0_POWER);
130 	}
131 	if (err) {
132 		pr_err("net2big: failed to setup SATA0 power GPIO\n");
133 		return;
134 	}
135 
136 	err = gpio_request(NET2BIG_GPIO_SATA1_POWER, "SATA1 power status");
137 	if (err == 0) {
138 		err = gpio_direction_input(NET2BIG_GPIO_SATA1_POWER);
139 		if (err)
140 			gpio_free(NET2BIG_GPIO_SATA1_POWER);
141 	}
142 	if (err) {
143 		pr_err("net2big: failed to setup SATA1 power GPIO\n");
144 		goto err_free_1;
145 	}
146 
147 	err = gpio_request(NET2BIG_GPIO_SATA_POWER_REQ, "SATA power request");
148 	if (err == 0) {
149 		err = gpio_direction_output(NET2BIG_GPIO_SATA_POWER_REQ, 0);
150 		if (err)
151 			gpio_free(NET2BIG_GPIO_SATA_POWER_REQ);
152 	}
153 	if (err) {
154 		pr_err("net2big: failed to setup SATA power request GPIO\n");
155 		goto err_free_2;
156 	}
157 
158 	if (gpio_get_value(NET2BIG_GPIO_SATA0_POWER) &&
159 		gpio_get_value(NET2BIG_GPIO_SATA1_POWER)) {
160 		return;
161 	}
162 
163 	/*
164 	 * SATA power up on both disk is done by pulling high the CPLD power
165 	 * request line. The 300ms delay is related to the CPLD clock and is
166 	 * needed to be sure that the CPLD has take into account the low line
167 	 * status.
168 	 */
169 	msleep(300);
170 	gpio_set_value(NET2BIG_GPIO_SATA_POWER_REQ, 1);
171 	pr_info("net2big: power up SATA hard disks\n");
172 
173 	return;
174 
175 err_free_2:
176 	gpio_free(NET2BIG_GPIO_SATA1_POWER);
177 err_free_1:
178 	gpio_free(NET2BIG_GPIO_SATA0_POWER);
179 
180 	return;
181 }
182 
183 /*****************************************************************************
184  * GPIO LEDs
185  ****************************************************************************/
186 
187 /*
188  * The power front LEDs (blue and red) and SATA red LEDs are controlled via a
189  * single GPIO line and are compatible with the leds-gpio driver.
190  *
191  * The SATA blue LEDs have some hardware blink capabilities which are detailed
192  * in the following array:
193  *
194  * SATAx blue LED | SATAx activity | LED state
195  *                |                |
196  *       0        |       0        |  blink (rate 300ms)
197  *       1        |       0        |  off
198  *       ?        |       1        |  on
199  *
200  * Notes: The blue and the red front LED's can't be on at the same time.
201  *        Blue LED have priority.
202  */
203 
204 #define NET2BIG_GPIO_PWR_RED_LED	6
205 #define NET2BIG_GPIO_PWR_BLUE_LED	16
206 #define NET2BIG_GPIO_PWR_LED_BLINK_STOP	7
207 
208 #define NET2BIG_GPIO_SATA0_RED_LED	11
209 #define NET2BIG_GPIO_SATA1_RED_LED	10
210 
211 #define NET2BIG_GPIO_SATA0_BLUE_LED	17
212 #define NET2BIG_GPIO_SATA1_BLUE_LED	13
213 
214 static struct gpio_led net2big_leds[] = {
215 	{
216 		.name = "net2big:red:power",
217 		.gpio = NET2BIG_GPIO_PWR_RED_LED,
218 	},
219 	{
220 		.name = "net2big:blue:power",
221 		.gpio = NET2BIG_GPIO_PWR_BLUE_LED,
222 	},
223 	{
224 		.name = "net2big:red:sata0",
225 		.gpio = NET2BIG_GPIO_SATA0_RED_LED,
226 	},
227 	{
228 		.name = "net2big:red:sata1",
229 		.gpio = NET2BIG_GPIO_SATA1_RED_LED,
230 	},
231 };
232 
233 static struct gpio_led_platform_data net2big_led_data = {
234 	.num_leds = ARRAY_SIZE(net2big_leds),
235 	.leds = net2big_leds,
236 };
237 
238 static struct platform_device net2big_gpio_leds = {
239 	.name           = "leds-gpio",
240 	.id             = -1,
241 	.dev            = {
242 		.platform_data  = &net2big_led_data,
243 	},
244 };
245 
net2big_gpio_leds_init(void)246 static void __init net2big_gpio_leds_init(void)
247 {
248 	int err;
249 
250 	/* Stop initial CPLD slow red/blue blinking on power LED. */
251 	err = gpio_request(NET2BIG_GPIO_PWR_LED_BLINK_STOP,
252 			   "Power LED blink stop");
253 	if (err == 0) {
254 		err = gpio_direction_output(NET2BIG_GPIO_PWR_LED_BLINK_STOP, 1);
255 		if (err)
256 			gpio_free(NET2BIG_GPIO_PWR_LED_BLINK_STOP);
257 	}
258 	if (err)
259 		pr_err("net2big: failed to setup power LED blink GPIO\n");
260 
261 	/*
262 	 * Configure SATA0 and SATA1 blue LEDs to blink in relation with the
263 	 * hard disk activity.
264 	 */
265 	err = gpio_request(NET2BIG_GPIO_SATA0_BLUE_LED,
266 			   "SATA0 blue LED control");
267 	if (err == 0) {
268 		err = gpio_direction_output(NET2BIG_GPIO_SATA0_BLUE_LED, 1);
269 		if (err)
270 			gpio_free(NET2BIG_GPIO_SATA0_BLUE_LED);
271 	}
272 	if (err)
273 		pr_err("net2big: failed to setup SATA0 blue LED GPIO\n");
274 
275 	err = gpio_request(NET2BIG_GPIO_SATA1_BLUE_LED,
276 			   "SATA1 blue LED control");
277 	if (err == 0) {
278 		err = gpio_direction_output(NET2BIG_GPIO_SATA1_BLUE_LED, 1);
279 		if (err)
280 			gpio_free(NET2BIG_GPIO_SATA1_BLUE_LED);
281 	}
282 	if (err)
283 		pr_err("net2big: failed to setup SATA1 blue LED GPIO\n");
284 
285 	platform_device_register(&net2big_gpio_leds);
286 }
287 
288 /****************************************************************************
289  * GPIO keys
290  ****************************************************************************/
291 
292 #define NET2BIG_GPIO_PUSH_BUTTON	18
293 #define NET2BIG_GPIO_POWER_SWITCH_ON	8
294 #define NET2BIG_GPIO_POWER_SWITCH_OFF	9
295 
296 #define NET2BIG_SWITCH_POWER_ON		0x1
297 #define NET2BIG_SWITCH_POWER_OFF	0x2
298 
299 static struct gpio_keys_button net2big_buttons[] = {
300 	{
301 		.type		= EV_SW,
302 		.code		= NET2BIG_SWITCH_POWER_OFF,
303 		.gpio		= NET2BIG_GPIO_POWER_SWITCH_OFF,
304 		.desc		= "Power rocker switch (auto|off)",
305 		.active_low	= 0,
306 	},
307 	{
308 		.type		= EV_SW,
309 		.code		= NET2BIG_SWITCH_POWER_ON,
310 		.gpio		= NET2BIG_GPIO_POWER_SWITCH_ON,
311 		.desc		= "Power rocker switch (on|auto)",
312 		.active_low	= 0,
313 	},
314 	{
315 		.type		= EV_KEY,
316 		.code		= KEY_POWER,
317 		.gpio		= NET2BIG_GPIO_PUSH_BUTTON,
318 		.desc		= "Front Push Button",
319 		.active_low	= 0,
320 	},
321 };
322 
323 static struct gpio_keys_platform_data net2big_button_data = {
324 	.buttons	= net2big_buttons,
325 	.nbuttons	= ARRAY_SIZE(net2big_buttons),
326 };
327 
328 static struct platform_device net2big_gpio_buttons = {
329 	.name		= "gpio-keys",
330 	.id		= -1,
331 	.dev		= {
332 		.platform_data	= &net2big_button_data,
333 	},
334 };
335 
336 /*****************************************************************************
337  * General Setup
338  ****************************************************************************/
339 
340 static unsigned int net2big_mpp_modes[] __initdata = {
341 	MPP0_GPIO,	/* Raid mode (bit 0) */
342 	MPP1_GPIO,	/* USB port 2 fuse (0 = Fail, 1 = Ok) */
343 	MPP2_GPIO,	/* Raid mode (bit 1) */
344 	MPP3_GPIO,	/* Board ID (bit 0) */
345 	MPP4_GPIO,	/* Fan activity (0 = Off, 1 = On) */
346 	MPP5_GPIO,	/* Fan fail detection */
347 	MPP6_GPIO,	/* Red front LED (0 = Off, 1 = On) */
348 	MPP7_GPIO,	/* Disable initial blinking on front LED */
349 	MPP8_GPIO,	/* Rear power switch (on|auto) */
350 	MPP9_GPIO,	/* Rear power switch (auto|off) */
351 	MPP10_GPIO,	/* SATA 1 red LED (0 = Off, 1 = On) */
352 	MPP11_GPIO,	/* SATA 0 red LED (0 = Off, 1 = On) */
353 	MPP12_GPIO,	/* Board ID (bit 1) */
354 	MPP13_GPIO,	/* SATA 1 blue LED blink control */
355 	MPP14_SATA_LED,
356 	MPP15_SATA_LED,
357 	MPP16_GPIO,	/* Blue front LED control */
358 	MPP17_GPIO,	/* SATA 0 blue LED blink control */
359 	MPP18_GPIO,	/* Front button (0 = Released, 1 = Pushed ) */
360 	MPP19_GPIO,	/* SATA{0,1} power On/Off request */
361 	0,
362 	/* 22: USB port 1 fuse (0 = Fail, 1 = Ok) */
363 	/* 23: SATA 0 power status */
364 	/* 24: Board power off */
365 	/* 25: SATA 1 power status */
366 };
367 
368 #define NET2BIG_GPIO_POWER_OFF		24
369 
net2big_power_off(void)370 static void net2big_power_off(void)
371 {
372 	gpio_set_value(NET2BIG_GPIO_POWER_OFF, 1);
373 }
374 
net2big_init(void)375 static void __init net2big_init(void)
376 {
377 	/*
378 	 * Setup basic Orion functions. Need to be called early.
379 	 */
380 	orion5x_init();
381 
382 	orion5x_mpp_conf(net2big_mpp_modes);
383 
384 	/*
385 	 * Configure peripherals.
386 	 */
387 	orion5x_ehci0_init();
388 	orion5x_ehci1_init();
389 	orion5x_eth_init(&net2big_eth_data);
390 	orion5x_i2c_init();
391 	orion5x_uart0_init();
392 	orion5x_xor_init();
393 
394 	net2big_sata_power_init();
395 	orion5x_sata_init(&net2big_sata_data);
396 
397 	mvebu_mbus_add_window_by_id(ORION_MBUS_DEVBUS_BOOT_TARGET,
398 				    ORION_MBUS_DEVBUS_BOOT_ATTR,
399 				    NET2BIG_NOR_BOOT_BASE,
400 				    NET2BIG_NOR_BOOT_SIZE);
401 	platform_device_register(&net2big_nor_flash);
402 
403 	platform_device_register(&net2big_gpio_buttons);
404 	net2big_gpio_leds_init();
405 
406 	i2c_register_board_info(0, net2big_i2c_devices,
407 				ARRAY_SIZE(net2big_i2c_devices));
408 
409 	orion_gpio_set_valid(NET2BIG_GPIO_POWER_OFF, 1);
410 
411 	if (gpio_request(NET2BIG_GPIO_POWER_OFF, "power-off") == 0 &&
412 	    gpio_direction_output(NET2BIG_GPIO_POWER_OFF, 0) == 0)
413 		pm_power_off = net2big_power_off;
414 	else
415 		pr_err("net2big: failed to configure power-off GPIO\n");
416 
417 	pr_notice("net2big: Flash writing is not yet supported.\n");
418 }
419 
420 /* Warning: LaCie use a wrong mach-type (0x20e=526) in their bootloader. */
421 MACHINE_START(NET2BIG, "LaCie 2Big Network")
422 	.atag_offset	= 0x100,
423 	.nr_irqs	= ORION5X_NR_IRQS,
424 	.init_machine	= net2big_init,
425 	.map_io		= orion5x_map_io,
426 	.init_early	= orion5x_init_early,
427 	.init_irq	= orion5x_init_irq,
428 	.init_time	= orion5x_timer_init,
429 	.fixup		= tag_fixup_mem32,
430 	.restart	= orion5x_restart,
431 MACHINE_END
432