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Linux/arch/arm/mach-orion5x/ls_hgl-setup.c

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  1 /*
  2  * arch/arm/mach-orion5x/ls_hgl-setup.c
  3  *
  4  * Maintainer: Zhu Qingsen <zhuqs@cn.fujitsu.com>
  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 "common.h"
 25 #include "mpp.h"
 26 #include "orion5x.h"
 27 
 28 /*****************************************************************************
 29  * Linkstation LS-HGL Info
 30  ****************************************************************************/
 31 
 32 /*
 33  * 256K NOR flash Device bus boot chip select
 34  */
 35 
 36 #define LS_HGL_NOR_BOOT_BASE    0xf4000000
 37 #define LS_HGL_NOR_BOOT_SIZE    SZ_256K
 38 
 39 /*****************************************************************************
 40  * 256KB NOR Flash on BOOT Device
 41  ****************************************************************************/
 42 
 43 static struct physmap_flash_data ls_hgl_nor_flash_data = {
 44         .width          = 1,
 45 };
 46 
 47 static struct resource ls_hgl_nor_flash_resource = {
 48         .flags  = IORESOURCE_MEM,
 49         .start  = LS_HGL_NOR_BOOT_BASE,
 50         .end    = LS_HGL_NOR_BOOT_BASE + LS_HGL_NOR_BOOT_SIZE - 1,
 51 };
 52 
 53 static struct platform_device ls_hgl_nor_flash = {
 54         .name                   = "physmap-flash",
 55         .id                     = 0,
 56         .dev            = {
 57                 .platform_data  = &ls_hgl_nor_flash_data,
 58         },
 59         .num_resources          = 1,
 60         .resource               = &ls_hgl_nor_flash_resource,
 61 };
 62 
 63 /*****************************************************************************
 64  * Ethernet
 65  ****************************************************************************/
 66 
 67 static struct mv643xx_eth_platform_data ls_hgl_eth_data = {
 68         .phy_addr       = 8,
 69 };
 70 
 71 /*****************************************************************************
 72  * RTC 5C372a on I2C bus
 73  ****************************************************************************/
 74 
 75 static struct i2c_board_info __initdata ls_hgl_i2c_rtc = {
 76         I2C_BOARD_INFO("rs5c372a", 0x32),
 77 };
 78 
 79 /*****************************************************************************
 80  * LEDs attached to GPIO
 81  ****************************************************************************/
 82 
 83 #define LS_HGL_GPIO_LED_ALARM   2
 84 #define LS_HGL_GPIO_LED_INFO    3
 85 #define LS_HGL_GPIO_LED_FUNC    17
 86 #define LS_HGL_GPIO_LED_PWR     0
 87 
 88 
 89 static struct gpio_led ls_hgl_led_pins[] = {
 90         {
 91                 .name      = "alarm:red",
 92                 .gpio      = LS_HGL_GPIO_LED_ALARM,
 93                 .active_low     = 1,
 94         }, {
 95                 .name      = "info:amber",
 96                 .gpio      = LS_HGL_GPIO_LED_INFO,
 97                 .active_low     = 1,
 98         }, {
 99                 .name      = "func:blue:top",
100                 .gpio      = LS_HGL_GPIO_LED_FUNC,
101                 .active_low     = 1,
102         }, {
103                 .name      = "power:blue:bottom",
104                 .gpio      = LS_HGL_GPIO_LED_PWR,
105         },
106 };
107 
108 static struct gpio_led_platform_data ls_hgl_led_data = {
109         .leds      = ls_hgl_led_pins,
110         .num_leds       = ARRAY_SIZE(ls_hgl_led_pins),
111 };
112 
113 static struct platform_device ls_hgl_leds = {
114         .name   = "leds-gpio",
115         .id     = -1,
116         .dev    = {
117                 .platform_data  = &ls_hgl_led_data,
118         },
119 };
120 
121 /****************************************************************************
122  * GPIO Attached Keys
123  ****************************************************************************/
124 #define LS_HGL_GPIO_KEY_FUNC       15
125 #define LS_HGL_GPIO_KEY_POWER      8
126 #define LS_HGL_GPIO_KEY_AUTOPOWER  10
127 
128 #define LS_HGL_SW_POWER     0x00
129 #define LS_HGL_SW_AUTOPOWER 0x01
130 
131 static struct gpio_keys_button ls_hgl_buttons[] = {
132         {
133                 .code      = KEY_OPTION,
134                 .gpio      = LS_HGL_GPIO_KEY_FUNC,
135                 .desc      = "Function Button",
136                 .active_low     = 1,
137         }, {
138                 .type           = EV_SW,
139                 .code      = LS_HGL_SW_POWER,
140                 .gpio      = LS_HGL_GPIO_KEY_POWER,
141                 .desc      = "Power-on Switch",
142                 .active_low     = 1,
143         }, {
144                 .type           = EV_SW,
145                 .code      = LS_HGL_SW_AUTOPOWER,
146                 .gpio      = LS_HGL_GPIO_KEY_AUTOPOWER,
147                 .desc      = "Power-auto Switch",
148                 .active_low     = 1,
149         },
150 };
151 
152 static struct gpio_keys_platform_data ls_hgl_button_data = {
153         .buttons        = ls_hgl_buttons,
154         .nbuttons       = ARRAY_SIZE(ls_hgl_buttons),
155 };
156 
157 static struct platform_device ls_hgl_button_device = {
158         .name      = "gpio-keys",
159         .id          = -1,
160         .num_resources  = 0,
161         .dev        = {
162                 .platform_data  = &ls_hgl_button_data,
163         },
164 };
165 
166 
167 /*****************************************************************************
168  * SATA
169  ****************************************************************************/
170 static struct mv_sata_platform_data ls_hgl_sata_data = {
171         .n_ports        = 2,
172 };
173 
174 
175 /*****************************************************************************
176  * Linkstation LS-HGL specific power off method: reboot
177  ****************************************************************************/
178 /*
179  * On the Linkstation LS-HGL, the shutdown process is following:
180  * - Userland monitors key events until the power switch goes to off position
181  * - The board reboots
182  * - U-boot starts and goes into an idle mode waiting for the user
183  *   to move the switch to ON position
184  */
185 
186 static void ls_hgl_power_off(void)
187 {
188         orion5x_restart(REBOOT_HARD, NULL);
189 }
190 
191 
192 /*****************************************************************************
193  * General Setup
194  ****************************************************************************/
195 
196 #define LS_HGL_GPIO_USB_POWER   9
197 #define LS_HGL_GPIO_AUTO_POWER  10
198 #define LS_HGL_GPIO_POWER           8
199 
200 #define LS_HGL_GPIO_HDD_POWER   1
201 
202 static unsigned int ls_hgl_mpp_modes[] __initdata = {
203         MPP0_GPIO, /* LED_PWR */
204         MPP1_GPIO, /* HDD_PWR */
205         MPP2_GPIO, /* LED_ALARM */
206         MPP3_GPIO, /* LED_INFO */
207         MPP4_UNUSED,
208         MPP5_UNUSED,
209         MPP6_GPIO, /* FAN_LCK */
210         MPP7_GPIO, /* INIT */
211         MPP8_GPIO, /* POWER */
212         MPP9_GPIO, /* USB_PWR */
213         MPP10_GPIO, /* AUTO_POWER */
214         MPP11_UNUSED, /* LED_ETH (dummy) */
215         MPP12_UNUSED,
216         MPP13_UNUSED,
217         MPP14_UNUSED,
218         MPP15_GPIO, /* FUNC */
219         MPP16_UNUSED,
220         MPP17_GPIO, /* LED_FUNC */
221         MPP18_UNUSED,
222         MPP19_UNUSED,
223         0,
224 };
225 
226 static void __init ls_hgl_init(void)
227 {
228         /*
229          * Setup basic Orion functions. Need to be called early.
230          */
231         orion5x_init();
232 
233         orion5x_mpp_conf(ls_hgl_mpp_modes);
234 
235         /*
236          * Configure peripherals.
237          */
238         orion5x_ehci0_init();
239         orion5x_ehci1_init();
240         orion5x_eth_init(&ls_hgl_eth_data);
241         orion5x_i2c_init();
242         orion5x_sata_init(&ls_hgl_sata_data);
243         orion5x_uart0_init();
244         orion5x_xor_init();
245 
246         mvebu_mbus_add_window_by_id(ORION_MBUS_DEVBUS_BOOT_TARGET,
247                                     ORION_MBUS_DEVBUS_BOOT_ATTR,
248                                     LS_HGL_NOR_BOOT_BASE,
249                                     LS_HGL_NOR_BOOT_SIZE);
250         platform_device_register(&ls_hgl_nor_flash);
251 
252         platform_device_register(&ls_hgl_button_device);
253 
254         platform_device_register(&ls_hgl_leds);
255 
256         i2c_register_board_info(0, &ls_hgl_i2c_rtc, 1);
257 
258         /* enable USB power */
259         gpio_set_value(LS_HGL_GPIO_USB_POWER, 1);
260 
261         /* register power-off method */
262         pm_power_off = ls_hgl_power_off;
263 
264         pr_info("%s: finished\n", __func__);
265 }
266 
267 MACHINE_START(LINKSTATION_LS_HGL, "Buffalo Linkstation LS-HGL")
268         /* Maintainer: Zhu Qingsen <zhuqs@cn.fujistu.com> */
269         .atag_offset    = 0x100,
270         .nr_irqs        = ORION5X_NR_IRQS,
271         .init_machine   = ls_hgl_init,
272         .map_io         = orion5x_map_io,
273         .init_early     = orion5x_init_early,
274         .init_irq       = orion5x_init_irq,
275         .init_time      = orion5x_timer_init,
276         .fixup          = tag_fixup_mem32,
277         .restart        = orion5x_restart,
278 MACHINE_END
279 

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