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/pci.h>
15 #include <linux/mtd/physmap.h>
16 #include <linux/mv643xx_eth.h>
17 #include <linux/leds.h>
18 #include <linux/gpio_keys.h>
19 #include <linux/input.h>
20 #include <linux/i2c.h>
21 #include <linux/ata_platform.h>
22 #include <asm/mach-types.h>
23 #include <linux/gpio.h>
24 #include <asm/mach/arch.h>
25 #include "common.h"
26 #include "mpp.h"
27 #include "include/mach/system.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
lsmini_power_off(void)187 static void lsmini_power_off(void)
188 {
189 arch_reset(0);
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 struct orion5x_mpp_mode lsmini_mpp_modes[] __initdata = {
205 { 0, MPP_UNUSED }, /* LED_RESERVE1 (unused) */
206 { 1, MPP_GPIO }, /* HDD_PWR */
207 { 2, MPP_GPIO }, /* LED_ALARM */
208 { 3, MPP_GPIO }, /* LED_INFO */
209 { 4, MPP_UNUSED },
210 { 5, MPP_UNUSED },
211 { 6, MPP_UNUSED },
212 { 7, MPP_UNUSED },
213 { 8, MPP_UNUSED },
214 { 9, MPP_GPIO }, /* LED_FUNC */
215 { 10, MPP_UNUSED },
216 { 11, MPP_UNUSED }, /* LED_ETH (dummy) */
217 { 12, MPP_UNUSED },
218 { 13, MPP_UNUSED },
219 { 14, MPP_GPIO }, /* LED_PWR */
220 { 15, MPP_GPIO }, /* FUNC */
221 { 16, MPP_GPIO }, /* USB_PWR */
222 { 17, MPP_GPIO }, /* AUTO_POWER */
223 { 18, MPP_GPIO }, /* POWER */
224 { 19, MPP_GPIO }, /* HDD_PWR1 */
225 { -1 },
226 };
227
lsmini_init(void)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 .phys_io = ORION5X_REGS_PHYS_BASE,
271 .io_pg_offst = ((ORION5X_REGS_VIRT_BASE) >> 18) & 0xFFFC,
272 .boot_params = 0x00000100,
273 .init_machine = lsmini_init,
274 .map_io = orion5x_map_io,
275 .init_irq = orion5x_init_irq,
276 .timer = &orion5x_timer,
277 .fixup = tag_fixup_mem32,
278 MACHINE_END
279 #endif
280