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Linux/arch/arm/mach-orion5x/ls-chl-setup.c

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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
331 

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