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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
44 static struct physmap_flash_data lschl_nor_flash_data = {
45         .width = 1,
46 };
47
48 static 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
54 static 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
68 static 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
76 static 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
89 static 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
108 static struct gpio_led_platform_data lschl_led_data = {
109         .leds = lschl_led_pins,
110         .num_leds = ARRAY_SIZE(lschl_led_pins),
111 };
112
113 static 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  ****************************************************************************/
124 static 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
140 static 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
162 static 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
184 static struct gpio_keys_platform_data lschl_button_data = {
185         .buttons = lschl_buttons,
186         .nbuttons = ARRAY_SIZE(lschl_buttons),
187 };
188
189 static 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
208 static struct gpio_fan_alarm lschl_alarm = {
209         .gpio = LSCHL_GPIO_FAN_LOCK,
210 };
211
212 static 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
228 static int lschl_gpio_list[] = {
229         LSCHL_GPIO_FAN_HIGH, LSCHL_GPIO_FAN_LOW,
230 };
231
232 static 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
240 static 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
253 static 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
277 static 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
320 MACHINE_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,
330 MACHINE_END