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 <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
51static 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
60static struct physmap_flash_data net2big_nor_flash_data = {
61	.width		= 1,
62	.parts		= net2big_partitions,
63	.nr_parts	= ARRAY_SIZE(net2big_partitions),
64};
65
66static 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
73static 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
87static 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 */
100static 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
112static 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
120static 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
178err_free_2:
179	gpio_free(NET2BIG_GPIO_SATA1_POWER);
180err_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
217static 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
236static struct gpio_led_platform_data net2big_led_data = {
237	.num_leds = ARRAY_SIZE(net2big_leds),
238	.leds = net2big_leds,
239};
240
241static struct platform_device net2big_gpio_leds = {
242	.name           = "leds-gpio",
243	.id             = -1,
244	.dev            = {
245		.platform_data  = &net2big_led_data,
246	},
247};
248
249static 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
302static 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
326static struct gpio_keys_platform_data net2big_button_data = {
327	.buttons	= net2big_buttons,
328	.nbuttons	= ARRAY_SIZE(net2big_buttons),
329};
330
331static 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
343static 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
373static void net2big_power_off(void)
374{
375	gpio_set_value(NET2BIG_GPIO_POWER_OFF, 1);
376}
377
378static 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. */
424MACHINE_START(NET2BIG, "LaCie 2Big Network")
425	.atag_offset	= 0x100,
426	.init_machine	= net2big_init,
427	.map_io		= orion5x_map_io,
428	.init_early	= orion5x_init_early,
429	.init_irq	= orion5x_init_irq,
430	.init_time	= orion5x_timer_init,
431	.fixup		= tag_fixup_mem32,
432	.restart	= orion5x_restart,
433MACHINE_END
434
435