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TOMOYO Linux Cross Reference
Linux/arch/arm/mach-orion5x/lsmini-setup.c

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  1 /*
  2  * arch/arm/mach-orion5x/lsmini-setup.c
  3  *
  4  * Maintainer: Alexey Kopytko <alexey@kopytko.ru>
  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/input.h>
 19 #include <linux/i2c.h>
 20 #include <linux/ata_platform.h>
 21 #include <linux/gpio.h>
 22 #include <asm/mach-types.h>
 23 #include <asm/mach/arch.h>
 24 #include <asm/system.h>
 25 #include <mach/orion5x.h>
 26 #include "common.h"
 27 #include "mpp.h"
 28 
 29 /*****************************************************************************
 30  * Linkstation Mini Info
 31  ****************************************************************************/
 32 
 33 /*
 34  * 256K NOR flash Device bus boot chip select
 35  */
 36 
 37 #define LSMINI_NOR_BOOT_BASE    0xf4000000
 38 #define LSMINI_NOR_BOOT_SIZE    SZ_256K
 39 
 40 /*****************************************************************************
 41  * 256KB NOR Flash on BOOT Device
 42  ****************************************************************************/
 43 
 44 static struct physmap_flash_data lsmini_nor_flash_data = {
 45         .width          = 1,
 46 };
 47 
 48 static struct resource lsmini_nor_flash_resource = {
 49         .flags  = IORESOURCE_MEM,
 50         .start  = LSMINI_NOR_BOOT_BASE,
 51         .end    = LSMINI_NOR_BOOT_BASE + LSMINI_NOR_BOOT_SIZE - 1,
 52 };
 53 
 54 static struct platform_device lsmini_nor_flash = {
 55         .name                   = "physmap-flash",
 56         .id                     = 0,
 57         .dev            = {
 58                 .platform_data  = &lsmini_nor_flash_data,
 59         },
 60         .num_resources          = 1,
 61         .resource               = &lsmini_nor_flash_resource,
 62 };
 63 
 64 /*****************************************************************************
 65  * Ethernet
 66  ****************************************************************************/
 67 
 68 static struct mv643xx_eth_platform_data lsmini_eth_data = {
 69         .phy_addr       = 8,
 70 };
 71 
 72 /*****************************************************************************
 73  * RTC 5C372a on I2C bus
 74  ****************************************************************************/
 75 
 76 static struct i2c_board_info __initdata lsmini_i2c_rtc = {
 77         I2C_BOARD_INFO("rs5c372a", 0x32),
 78 };
 79 
 80 /*****************************************************************************
 81  * LEDs attached to GPIO
 82  ****************************************************************************/
 83 
 84 #define LSMINI_GPIO_LED_ALARM   2
 85 #define LSMINI_GPIO_LED_INFO    3
 86 #define LSMINI_GPIO_LED_FUNC    9
 87 #define LSMINI_GPIO_LED_PWR     14
 88 
 89 static struct gpio_led lsmini_led_pins[] = {
 90         {
 91                 .name      = "alarm:red",
 92                 .gpio      = LSMINI_GPIO_LED_ALARM,
 93                 .active_low     = 1,
 94         }, {
 95                 .name      = "info:amber",
 96                 .gpio      = LSMINI_GPIO_LED_INFO,
 97                 .active_low     = 1,
 98         }, {
 99                 .name      = "func:blue:top",
100                 .gpio      = LSMINI_GPIO_LED_FUNC,
101                 .active_low     = 1,
102         }, {
103                 .name      = "power:blue:bottom",
104                 .gpio      = LSMINI_GPIO_LED_PWR,
105         },
106 };
107 
108 static struct gpio_led_platform_data lsmini_led_data = {
109         .leds      = lsmini_led_pins,
110         .num_leds       = ARRAY_SIZE(lsmini_led_pins),
111 };
112 
113 static struct platform_device lsmini_leds = {
114         .name   = "leds-gpio",
115         .id     = -1,
116         .dev    = {
117                 .platform_data  = &lsmini_led_data,
118         },
119 };
120 
121 /****************************************************************************
122  * GPIO Attached Keys
123  ****************************************************************************/
124 
125 #define LSMINI_GPIO_KEY_FUNC       15
126 #define LSMINI_GPIO_KEY_POWER      18
127 #define LSMINI_GPIO_KEY_AUTOPOWER 17
128 
129 #define LSMINI_SW_POWER         0x00
130 #define LSMINI_SW_AUTOPOWER     0x01
131 
132 static struct gpio_keys_button lsmini_buttons[] = {
133         {
134                 .code      = KEY_OPTION,
135                 .gpio      = LSMINI_GPIO_KEY_FUNC,
136                 .desc      = "Function Button",
137                 .active_low     = 1,
138         }, {
139                 .type           = EV_SW,
140                 .code      = LSMINI_SW_POWER,
141                 .gpio      = LSMINI_GPIO_KEY_POWER,
142                 .desc      = "Power-on Switch",
143                 .active_low     = 1,
144         }, {
145                 .type           = EV_SW,
146                 .code      = LSMINI_SW_AUTOPOWER,
147                 .gpio      = LSMINI_GPIO_KEY_AUTOPOWER,
148                 .desc      = "Power-auto Switch",
149                 .active_low     = 1,
150         },
151 };
152 
153 static struct gpio_keys_platform_data lsmini_button_data = {
154         .buttons        = lsmini_buttons,
155         .nbuttons       = ARRAY_SIZE(lsmini_buttons),
156 };
157 
158 static struct platform_device lsmini_button_device = {
159         .name      = "gpio-keys",
160         .id          = -1,
161         .num_resources  = 0,
162         .dev        = {
163                 .platform_data  = &lsmini_button_data,
164         },
165 };
166 
167 
168 /*****************************************************************************
169  * SATA
170  ****************************************************************************/
171 static struct mv_sata_platform_data lsmini_sata_data = {
172         .n_ports        = 2,
173 };
174 
175 
176 /*****************************************************************************
177  * Linkstation Mini specific power off method: reboot
178  ****************************************************************************/
179 /*
180  * On the Linkstation Mini, the shutdown process is following:
181  * - Userland monitors key events until the power switch goes to off position
182  * - The board reboots
183  * - U-boot starts and goes into an idle mode waiting for the user
184  *   to move the switch to ON position
185  */
186 
187 static void lsmini_power_off(void)
188 {
189         arm_machine_restart('h', NULL);
190 }
191 
192 
193 /*****************************************************************************
194  * General Setup
195  ****************************************************************************/
196 
197 #define LSMINI_GPIO_USB_POWER   16
198 #define LSMINI_GPIO_AUTO_POWER  17
199 #define LSMINI_GPIO_POWER       18
200 
201 #define LSMINI_GPIO_HDD_POWER0  1
202 #define LSMINI_GPIO_HDD_POWER1  19
203 
204 static unsigned int lsmini_mpp_modes[] __initdata = {
205         MPP0_UNUSED, /* LED_RESERVE1 (unused) */
206         MPP1_GPIO, /* HDD_PWR */
207         MPP2_GPIO, /* LED_ALARM */
208         MPP3_GPIO, /* LED_INFO */
209         MPP4_UNUSED,
210         MPP5_UNUSED,
211         MPP6_UNUSED,
212         MPP7_UNUSED,
213         MPP8_UNUSED,
214         MPP9_GPIO, /* LED_FUNC */
215         MPP10_UNUSED,
216         MPP11_UNUSED, /* LED_ETH (dummy) */
217         MPP12_UNUSED,
218         MPP13_UNUSED,
219         MPP14_GPIO, /* LED_PWR */
220         MPP15_GPIO, /* FUNC */
221         MPP16_GPIO, /* USB_PWR */
222         MPP17_GPIO, /* AUTO_POWER */
223         MPP18_GPIO, /* POWER */
224         MPP19_GPIO, /* HDD_PWR1 */
225         0,
226 };
227 
228 static void __init lsmini_init(void)
229 {
230         /*
231          * Setup basic Orion functions. Need to be called early.
232          */
233         orion5x_init();
234 
235         orion5x_mpp_conf(lsmini_mpp_modes);
236 
237         /*
238          * Configure peripherals.
239          */
240         orion5x_ehci0_init();
241         orion5x_ehci1_init();
242         orion5x_eth_init(&lsmini_eth_data);
243         orion5x_i2c_init();
244         orion5x_sata_init(&lsmini_sata_data);
245         orion5x_uart0_init();
246         orion5x_xor_init();
247 
248         orion5x_setup_dev_boot_win(LSMINI_NOR_BOOT_BASE,
249                                    LSMINI_NOR_BOOT_SIZE);
250         platform_device_register(&lsmini_nor_flash);
251 
252         platform_device_register(&lsmini_button_device);
253 
254         platform_device_register(&lsmini_leds);
255 
256         i2c_register_board_info(0, &lsmini_i2c_rtc, 1);
257 
258         /* enable USB power */
259         gpio_set_value(LSMINI_GPIO_USB_POWER, 1);
260 
261         /* register power-off method */
262         pm_power_off = lsmini_power_off;
263 
264         pr_info("%s: finished\n", __func__);
265 }
266 
267 #ifdef CONFIG_MACH_LINKSTATION_MINI
268 MACHINE_START(LINKSTATION_MINI, "Buffalo Linkstation Mini")
269         /* Maintainer: Alexey Kopytko <alexey@kopytko.ru> */
270         .boot_params    = 0x00000100,
271         .init_machine   = lsmini_init,
272         .map_io         = orion5x_map_io,
273         .init_early     = orion5x_init_early,
274         .init_irq       = orion5x_init_irq,
275         .timer          = &orion5x_timer,
276         .fixup          = tag_fixup_mem32,
277 MACHINE_END
278 #endif
279 

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