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 <mach/orion5x.h>
25 #include "common.h"
26 #include "mpp.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
ls_hgl_power_off(void)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
ls_hgl_init(void)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 .init_machine = ls_hgl_init,
271 .map_io = orion5x_map_io,
272 .init_early = orion5x_init_early,
273 .init_irq = orion5x_init_irq,
274 .init_time = orion5x_timer_init,
275 .fixup = tag_fixup_mem32,
276 .restart = orion5x_restart,
277 MACHINE_END
278