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 <mach/orion5x.h>
25 #include "common.h"
26 #include "mpp.h"
27
28 /*****************************************************************************
29 * Linkstation Mini Info
30 ****************************************************************************/
31
32 /*
33 * 256K NOR flash Device bus boot chip select
34 */
35
36 #define LSMINI_NOR_BOOT_BASE 0xf4000000
37 #define LSMINI_NOR_BOOT_SIZE SZ_256K
38
39 /*****************************************************************************
40 * 256KB NOR Flash on BOOT Device
41 ****************************************************************************/
42
43 static struct physmap_flash_data lsmini_nor_flash_data = {
44 .width = 1,
45 };
46
47 static struct resource lsmini_nor_flash_resource = {
48 .flags = IORESOURCE_MEM,
49 .start = LSMINI_NOR_BOOT_BASE,
50 .end = LSMINI_NOR_BOOT_BASE + LSMINI_NOR_BOOT_SIZE - 1,
51 };
52
53 static struct platform_device lsmini_nor_flash = {
54 .name = "physmap-flash",
55 .id = 0,
56 .dev = {
57 .platform_data = &lsmini_nor_flash_data,
58 },
59 .num_resources = 1,
60 .resource = &lsmini_nor_flash_resource,
61 };
62
63 /*****************************************************************************
64 * Ethernet
65 ****************************************************************************/
66
67 static struct mv643xx_eth_platform_data lsmini_eth_data = {
68 .phy_addr = 8,
69 };
70
71 /*****************************************************************************
72 * RTC 5C372a on I2C bus
73 ****************************************************************************/
74
75 static struct i2c_board_info __initdata lsmini_i2c_rtc = {
76 I2C_BOARD_INFO("rs5c372a", 0x32),
77 };
78
79 /*****************************************************************************
80 * LEDs attached to GPIO
81 ****************************************************************************/
82
83 #define LSMINI_GPIO_LED_ALARM 2
84 #define LSMINI_GPIO_LED_INFO 3
85 #define LSMINI_GPIO_LED_FUNC 9
86 #define LSMINI_GPIO_LED_PWR 14
87
88 static struct gpio_led lsmini_led_pins[] = {
89 {
90 .name = "alarm:red",
91 .gpio = LSMINI_GPIO_LED_ALARM,
92 .active_low = 1,
93 }, {
94 .name = "info:amber",
95 .gpio = LSMINI_GPIO_LED_INFO,
96 .active_low = 1,
97 }, {
98 .name = "func:blue:top",
99 .gpio = LSMINI_GPIO_LED_FUNC,
100 .active_low = 1,
101 }, {
102 .name = "power:blue:bottom",
103 .gpio = LSMINI_GPIO_LED_PWR,
104 },
105 };
106
107 static struct gpio_led_platform_data lsmini_led_data = {
108 .leds = lsmini_led_pins,
109 .num_leds = ARRAY_SIZE(lsmini_led_pins),
110 };
111
112 static struct platform_device lsmini_leds = {
113 .name = "leds-gpio",
114 .id = -1,
115 .dev = {
116 .platform_data = &lsmini_led_data,
117 },
118 };
119
120 /****************************************************************************
121 * GPIO Attached Keys
122 ****************************************************************************/
123
124 #define LSMINI_GPIO_KEY_FUNC 15
125 #define LSMINI_GPIO_KEY_POWER 18
126 #define LSMINI_GPIO_KEY_AUTOPOWER 17
127
128 #define LSMINI_SW_POWER 0x00
129 #define LSMINI_SW_AUTOPOWER 0x01
130
131 static struct gpio_keys_button lsmini_buttons[] = {
132 {
133 .code = KEY_OPTION,
134 .gpio = LSMINI_GPIO_KEY_FUNC,
135 .desc = "Function Button",
136 .active_low = 1,
137 }, {
138 .type = EV_SW,
139 .code = LSMINI_SW_POWER,
140 .gpio = LSMINI_GPIO_KEY_POWER,
141 .desc = "Power-on Switch",
142 .active_low = 1,
143 }, {
144 .type = EV_SW,
145 .code = LSMINI_SW_AUTOPOWER,
146 .gpio = LSMINI_GPIO_KEY_AUTOPOWER,
147 .desc = "Power-auto Switch",
148 .active_low = 1,
149 },
150 };
151
152 static struct gpio_keys_platform_data lsmini_button_data = {
153 .buttons = lsmini_buttons,
154 .nbuttons = ARRAY_SIZE(lsmini_buttons),
155 };
156
157 static struct platform_device lsmini_button_device = {
158 .name = "gpio-keys",
159 .id = -1,
160 .num_resources = 0,
161 .dev = {
162 .platform_data = &lsmini_button_data,
163 },
164 };
165
166
167 /*****************************************************************************
168 * SATA
169 ****************************************************************************/
170 static struct mv_sata_platform_data lsmini_sata_data = {
171 .n_ports = 2,
172 };
173
174
175 /*****************************************************************************
176 * Linkstation Mini specific power off method: reboot
177 ****************************************************************************/
178 /*
179 * On the Linkstation Mini, 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
lsmini_power_off(void)186 static void lsmini_power_off(void)
187 {
188 orion5x_restart(REBOOT_HARD, NULL);
189 }
190
191
192 /*****************************************************************************
193 * General Setup
194 ****************************************************************************/
195
196 #define LSMINI_GPIO_USB_POWER 16
197 #define LSMINI_GPIO_AUTO_POWER 17
198 #define LSMINI_GPIO_POWER 18
199
200 #define LSMINI_GPIO_HDD_POWER0 1
201 #define LSMINI_GPIO_HDD_POWER1 19
202
203 static unsigned int lsmini_mpp_modes[] __initdata = {
204 MPP0_UNUSED, /* LED_RESERVE1 (unused) */
205 MPP1_GPIO, /* HDD_PWR */
206 MPP2_GPIO, /* LED_ALARM */
207 MPP3_GPIO, /* LED_INFO */
208 MPP4_UNUSED,
209 MPP5_UNUSED,
210 MPP6_UNUSED,
211 MPP7_UNUSED,
212 MPP8_UNUSED,
213 MPP9_GPIO, /* LED_FUNC */
214 MPP10_UNUSED,
215 MPP11_UNUSED, /* LED_ETH (dummy) */
216 MPP12_UNUSED,
217 MPP13_UNUSED,
218 MPP14_GPIO, /* LED_PWR */
219 MPP15_GPIO, /* FUNC */
220 MPP16_GPIO, /* USB_PWR */
221 MPP17_GPIO, /* AUTO_POWER */
222 MPP18_GPIO, /* POWER */
223 MPP19_GPIO, /* HDD_PWR1 */
224 0,
225 };
226
lsmini_init(void)227 static void __init lsmini_init(void)
228 {
229 /*
230 * Setup basic Orion functions. Need to be called early.
231 */
232 orion5x_init();
233
234 orion5x_mpp_conf(lsmini_mpp_modes);
235
236 /*
237 * Configure peripherals.
238 */
239 orion5x_ehci0_init();
240 orion5x_ehci1_init();
241 orion5x_eth_init(&lsmini_eth_data);
242 orion5x_i2c_init();
243 orion5x_sata_init(&lsmini_sata_data);
244 orion5x_uart0_init();
245 orion5x_xor_init();
246
247 mvebu_mbus_add_window_by_id(ORION_MBUS_DEVBUS_BOOT_TARGET,
248 ORION_MBUS_DEVBUS_BOOT_ATTR,
249 LSMINI_NOR_BOOT_BASE,
250 LSMINI_NOR_BOOT_SIZE);
251 platform_device_register(&lsmini_nor_flash);
252
253 platform_device_register(&lsmini_button_device);
254
255 platform_device_register(&lsmini_leds);
256
257 i2c_register_board_info(0, &lsmini_i2c_rtc, 1);
258
259 /* enable USB power */
260 gpio_set_value(LSMINI_GPIO_USB_POWER, 1);
261
262 /* register power-off method */
263 pm_power_off = lsmini_power_off;
264
265 pr_info("%s: finished\n", __func__);
266 }
267
268 #ifdef CONFIG_MACH_LINKSTATION_MINI
269 MACHINE_START(LINKSTATION_MINI, "Buffalo Linkstation Mini")
270 /* Maintainer: Alexey Kopytko <alexey@kopytko.ru> */
271 .atag_offset = 0x100,
272 .init_machine = lsmini_init,
273 .map_io = orion5x_map_io,
274 .init_early = orion5x_init_early,
275 .init_irq = orion5x_init_irq,
276 .init_time = orion5x_timer_init,
277 .fixup = tag_fixup_mem32,
278 .restart = orion5x_restart,
279 MACHINE_END
280 #endif
281