1/*
2 * arch/arm/mach-orion5x/ls-chl-setup.c
3 *
4 * Maintainer: Ash Hughes <ashley.hughes@blueyonder.co.uk>
5 *
6 * This file is licensed under the terms of the GNU General Public
7 * License version 2.  This program is licensed "as is" without any
8 * warranty of any kind, whether express or implied.
9 */
10
11#include <linux/kernel.h>
12#include <linux/init.h>
13#include <linux/platform_device.h>
14#include <linux/mtd/physmap.h>
15#include <linux/mv643xx_eth.h>
16#include <linux/leds.h>
17#include <linux/gpio_keys.h>
18#include <linux/gpio-fan.h>
19#include <linux/input.h>
20#include <linux/i2c.h>
21#include <linux/ata_platform.h>
22#include <linux/gpio.h>
23#include <asm/mach-types.h>
24#include <asm/mach/arch.h>
25#include <mach/orion5x.h>
26#include "common.h"
27#include "mpp.h"
28
29/*****************************************************************************
30 * Linkstation LS-CHL Info
31 ****************************************************************************/
32
33/*
34 * 256K NOR flash Device bus boot chip select
35 */
36
37#define LSCHL_NOR_BOOT_BASE	0xf4000000
38#define LSCHL_NOR_BOOT_SIZE	SZ_256K
39
40/*****************************************************************************
41 * 256KB NOR Flash on BOOT Device
42 ****************************************************************************/
43
44static struct physmap_flash_data lschl_nor_flash_data = {
45	.width = 1,
46};
47
48static struct resource lschl_nor_flash_resource = {
49	.flags	= IORESOURCE_MEM,
50	.start	= LSCHL_NOR_BOOT_BASE,
51	.end	= LSCHL_NOR_BOOT_BASE + LSCHL_NOR_BOOT_SIZE - 1,
52};
53
54static struct platform_device lschl_nor_flash = {
55	.name = "physmap-flash",
56	.id = 0,
57	.dev = {
58		.platform_data	= &lschl_nor_flash_data,
59	},
60	.num_resources = 1,
61	.resource = &lschl_nor_flash_resource,
62};
63
64/*****************************************************************************
65 * Ethernet
66 ****************************************************************************/
67
68static struct mv643xx_eth_platform_data lschl_eth_data = {
69	.phy_addr = MV643XX_ETH_PHY_ADDR(8),
70};
71
72/*****************************************************************************
73 * RTC 5C372a on I2C bus
74 ****************************************************************************/
75
76static struct i2c_board_info __initdata lschl_i2c_rtc = {
77	I2C_BOARD_INFO("rs5c372a", 0x32),
78};
79
80/*****************************************************************************
81 * LEDs attached to GPIO
82 ****************************************************************************/
83
84#define LSCHL_GPIO_LED_ALARM	2
85#define LSCHL_GPIO_LED_INFO	3
86#define LSCHL_GPIO_LED_FUNC	17
87#define LSCHL_GPIO_LED_PWR	0
88
89static struct gpio_led lschl_led_pins[] = {
90	{
91		.name = "alarm:red",
92		.gpio = LSCHL_GPIO_LED_ALARM,
93		.active_low = 1,
94	}, {
95		.name = "info:amber",
96		.gpio = LSCHL_GPIO_LED_INFO,
97		.active_low = 1,
98	}, {
99		.name = "func:blue:top",
100		.gpio = LSCHL_GPIO_LED_FUNC,
101		.active_low = 1,
102	}, {
103		.name = "power:blue:bottom",
104		.gpio = LSCHL_GPIO_LED_PWR,
105	},
106};
107
108static struct gpio_led_platform_data lschl_led_data = {
109	.leds = lschl_led_pins,
110	.num_leds = ARRAY_SIZE(lschl_led_pins),
111};
112
113static struct platform_device lschl_leds = {
114	.name = "leds-gpio",
115	.id = -1,
116	.dev = {
117		.platform_data = &lschl_led_data,
118	},
119};
120
121/*****************************************************************************
122 * SATA
123 ****************************************************************************/
124static struct mv_sata_platform_data lschl_sata_data = {
125	.n_ports = 2,
126};
127
128/*****************************************************************************
129 * LS-CHL specific power off method: reboot
130 ****************************************************************************/
131/*
132 * On the LS-CHL, the shutdown process is following:
133 * - Userland monitors key events until the power switch goes to off position
134 * - The board reboots
135 * - U-boot starts and goes into an idle mode waiting for the user
136 *   to move the switch to ON position
137 *
138 */
139
140static void lschl_power_off(void)
141{
142	orion5x_restart(REBOOT_HARD, NULL);
143}
144
145/*****************************************************************************
146 * General Setup
147 ****************************************************************************/
148#define LSCHL_GPIO_USB_POWER	9
149#define LSCHL_GPIO_AUTO_POWER	17
150#define LSCHL_GPIO_POWER	18
151
152/****************************************************************************
153 * GPIO Attached Keys
154 ****************************************************************************/
155#define LSCHL_GPIO_KEY_FUNC		15
156#define LSCHL_GPIO_KEY_POWER		8
157#define LSCHL_GPIO_KEY_AUTOPOWER	10
158#define LSCHL_SW_POWER		0x00
159#define LSCHL_SW_AUTOPOWER	0x01
160#define LSCHL_SW_FUNC		0x02
161
162static struct gpio_keys_button lschl_buttons[] = {
163	{
164		.type = EV_SW,
165		.code = LSCHL_SW_POWER,
166		.gpio = LSCHL_GPIO_KEY_POWER,
167		.desc = "Power-on Switch",
168		.active_low = 1,
169	}, {
170		.type = EV_SW,
171		.code = LSCHL_SW_AUTOPOWER,
172		.gpio = LSCHL_GPIO_KEY_AUTOPOWER,
173		.desc = "Power-auto Switch",
174		.active_low = 1,
175	}, {
176		.type = EV_SW,
177		.code = LSCHL_SW_FUNC,
178		.gpio = LSCHL_GPIO_KEY_FUNC,
179		.desc = "Function Switch",
180		.active_low = 1,
181	},
182};
183
184static struct gpio_keys_platform_data lschl_button_data = {
185	.buttons = lschl_buttons,
186	.nbuttons = ARRAY_SIZE(lschl_buttons),
187};
188
189static struct platform_device lschl_button_device = {
190	.name = "gpio-keys",
191	.id = -1,
192	.num_resources = 0,
193	.dev = {
194		.platform_data = &lschl_button_data,
195	},
196};
197
198#define LSCHL_GPIO_HDD_POWER	1
199
200/****************************************************************************
201 * GPIO Fan
202 ****************************************************************************/
203
204#define LSCHL_GPIO_FAN_LOW	16
205#define LSCHL_GPIO_FAN_HIGH	14
206#define LSCHL_GPIO_FAN_LOCK	6
207
208static struct gpio_fan_alarm lschl_alarm = {
209	.gpio = LSCHL_GPIO_FAN_LOCK,
210};
211
212static struct gpio_fan_speed lschl_speeds[] = {
213	{
214		.rpm = 0,
215		.ctrl_val = 3,
216	}, {
217		.rpm = 1500,
218		.ctrl_val = 2,
219	}, {
220		.rpm = 3250,
221		.ctrl_val = 1,
222	}, {
223		.rpm = 5000,
224		.ctrl_val = 0,
225	},
226};
227
228static int lschl_gpio_list[] = {
229	LSCHL_GPIO_FAN_HIGH, LSCHL_GPIO_FAN_LOW,
230};
231
232static struct gpio_fan_platform_data lschl_fan_data = {
233	.num_ctrl = ARRAY_SIZE(lschl_gpio_list),
234	.ctrl = lschl_gpio_list,
235	.alarm = &lschl_alarm,
236	.num_speed = ARRAY_SIZE(lschl_speeds),
237	.speed = lschl_speeds,
238};
239
240static struct platform_device lschl_fan_device = {
241	.name = "gpio-fan",
242	.id = -1,
243	.num_resources = 0,
244	.dev = {
245		.platform_data = &lschl_fan_data,
246	},
247};
248
249/****************************************************************************
250 * GPIO Data
251 ****************************************************************************/
252
253static unsigned int lschl_mpp_modes[] __initdata = {
254	MPP0_GPIO, /* LED POWER */
255	MPP1_GPIO, /* HDD POWER */
256	MPP2_GPIO, /* LED ALARM */
257	MPP3_GPIO, /* LED INFO */
258	MPP4_UNUSED,
259	MPP5_UNUSED,
260	MPP6_GPIO, /* FAN LOCK */
261	MPP7_GPIO, /* SW INIT */
262	MPP8_GPIO, /* SW POWER */
263	MPP9_GPIO, /* USB POWER */
264	MPP10_GPIO, /* SW AUTO POWER */
265	MPP11_UNUSED,
266	MPP12_UNUSED,
267	MPP13_UNUSED,
268	MPP14_GPIO, /* FAN HIGH */
269	MPP15_GPIO, /* SW FUNC */
270	MPP16_GPIO, /* FAN LOW */
271	MPP17_GPIO, /* LED FUNC */
272	MPP18_UNUSED,
273	MPP19_UNUSED,
274	0,
275};
276
277static void __init lschl_init(void)
278{
279	/*
280	 * Setup basic Orion functions. Needs to be called early.
281	 */
282	orion5x_init();
283
284	orion5x_mpp_conf(lschl_mpp_modes);
285
286	/*
287	 * Configure peripherals.
288	 */
289	orion5x_ehci0_init();
290	orion5x_ehci1_init();
291	orion5x_eth_init(&lschl_eth_data);
292	orion5x_i2c_init();
293	orion5x_sata_init(&lschl_sata_data);
294	orion5x_uart0_init();
295	orion5x_xor_init();
296
297	mvebu_mbus_add_window_by_id(ORION_MBUS_DEVBUS_BOOT_TARGET,
298				    ORION_MBUS_DEVBUS_BOOT_ATTR,
299				    LSCHL_NOR_BOOT_BASE,
300				    LSCHL_NOR_BOOT_SIZE);
301	platform_device_register(&lschl_nor_flash);
302
303	platform_device_register(&lschl_leds);
304
305	platform_device_register(&lschl_button_device);
306
307	platform_device_register(&lschl_fan_device);
308
309	i2c_register_board_info(0, &lschl_i2c_rtc, 1);
310
311	/* usb power on */
312	gpio_set_value(LSCHL_GPIO_USB_POWER, 1);
313
314	/* register power-off method */
315	pm_power_off = lschl_power_off;
316
317	pr_info("%s: finished\n", __func__);
318}
319
320MACHINE_START(LINKSTATION_LSCHL, "Buffalo Linkstation LiveV3 (LS-CHL)")
321	/* Maintainer: Ash Hughes <ashley.hughes@blueyonder.co.uk> */
322	.atag_offset	= 0x100,
323	.init_machine	= lschl_init,
324	.map_io		= orion5x_map_io,
325	.init_early	= orion5x_init_early,
326	.init_irq	= orion5x_init_irq,
327	.init_time	= orion5x_timer_init,
328	.fixup		= tag_fixup_mem32,
329	.restart	= orion5x_restart,
330MACHINE_END
331