1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * arch/arm/mach-orion5x/ls_hgl-setup.c
4 *
5 * Maintainer: Zhu Qingsen <zhuqs@cn.fujitsu.com>
6 */
7
8 #include <linux/kernel.h>
9 #include <linux/init.h>
10 #include <linux/platform_device.h>
11 #include <linux/mtd/physmap.h>
12 #include <linux/mv643xx_eth.h>
13 #include <linux/leds.h>
14 #include <linux/gpio_keys.h>
15 #include <linux/input.h>
16 #include <linux/i2c.h>
17 #include <linux/ata_platform.h>
18 #include <linux/gpio.h>
19 #include <asm/mach-types.h>
20 #include <asm/mach/arch.h>
21 #include "common.h"
22 #include "mpp.h"
23 #include "orion5x.h"
24
25 /*****************************************************************************
26 * Linkstation LS-HGL Info
27 ****************************************************************************/
28
29 /*
30 * 256K NOR flash Device bus boot chip select
31 */
32
33 #define LS_HGL_NOR_BOOT_BASE 0xf4000000
34 #define LS_HGL_NOR_BOOT_SIZE SZ_256K
35
36 /*****************************************************************************
37 * 256KB NOR Flash on BOOT Device
38 ****************************************************************************/
39
40 static struct physmap_flash_data ls_hgl_nor_flash_data = {
41 .width = 1,
42 };
43
44 static struct resource ls_hgl_nor_flash_resource = {
45 .flags = IORESOURCE_MEM,
46 .start = LS_HGL_NOR_BOOT_BASE,
47 .end = LS_HGL_NOR_BOOT_BASE + LS_HGL_NOR_BOOT_SIZE - 1,
48 };
49
50 static struct platform_device ls_hgl_nor_flash = {
51 .name = "physmap-flash",
52 .id = 0,
53 .dev = {
54 .platform_data = &ls_hgl_nor_flash_data,
55 },
56 .num_resources = 1,
57 .resource = &ls_hgl_nor_flash_resource,
58 };
59
60 /*****************************************************************************
61 * Ethernet
62 ****************************************************************************/
63
64 static struct mv643xx_eth_platform_data ls_hgl_eth_data = {
65 .phy_addr = 8,
66 };
67
68 /*****************************************************************************
69 * RTC 5C372a on I2C bus
70 ****************************************************************************/
71
72 static struct i2c_board_info __initdata ls_hgl_i2c_rtc = {
73 I2C_BOARD_INFO("rs5c372a", 0x32),
74 };
75
76 /*****************************************************************************
77 * LEDs attached to GPIO
78 ****************************************************************************/
79
80 #define LS_HGL_GPIO_LED_ALARM 2
81 #define LS_HGL_GPIO_LED_INFO 3
82 #define LS_HGL_GPIO_LED_FUNC 17
83 #define LS_HGL_GPIO_LED_PWR 0
84
85
86 static struct gpio_led ls_hgl_led_pins[] = {
87 {
88 .name = "alarm:red",
89 .gpio = LS_HGL_GPIO_LED_ALARM,
90 .active_low = 1,
91 }, {
92 .name = "info:amber",
93 .gpio = LS_HGL_GPIO_LED_INFO,
94 .active_low = 1,
95 }, {
96 .name = "func:blue:top",
97 .gpio = LS_HGL_GPIO_LED_FUNC,
98 .active_low = 1,
99 }, {
100 .name = "power:blue:bottom",
101 .gpio = LS_HGL_GPIO_LED_PWR,
102 },
103 };
104
105 static struct gpio_led_platform_data ls_hgl_led_data = {
106 .leds = ls_hgl_led_pins,
107 .num_leds = ARRAY_SIZE(ls_hgl_led_pins),
108 };
109
110 static struct platform_device ls_hgl_leds = {
111 .name = "leds-gpio",
112 .id = -1,
113 .dev = {
114 .platform_data = &ls_hgl_led_data,
115 },
116 };
117
118 /****************************************************************************
119 * GPIO Attached Keys
120 ****************************************************************************/
121 #define LS_HGL_GPIO_KEY_FUNC 15
122 #define LS_HGL_GPIO_KEY_POWER 8
123 #define LS_HGL_GPIO_KEY_AUTOPOWER 10
124
125 #define LS_HGL_SW_POWER 0x00
126 #define LS_HGL_SW_AUTOPOWER 0x01
127
128 static struct gpio_keys_button ls_hgl_buttons[] = {
129 {
130 .code = KEY_OPTION,
131 .gpio = LS_HGL_GPIO_KEY_FUNC,
132 .desc = "Function Button",
133 .active_low = 1,
134 }, {
135 .type = EV_SW,
136 .code = LS_HGL_SW_POWER,
137 .gpio = LS_HGL_GPIO_KEY_POWER,
138 .desc = "Power-on Switch",
139 .active_low = 1,
140 }, {
141 .type = EV_SW,
142 .code = LS_HGL_SW_AUTOPOWER,
143 .gpio = LS_HGL_GPIO_KEY_AUTOPOWER,
144 .desc = "Power-auto Switch",
145 .active_low = 1,
146 },
147 };
148
149 static struct gpio_keys_platform_data ls_hgl_button_data = {
150 .buttons = ls_hgl_buttons,
151 .nbuttons = ARRAY_SIZE(ls_hgl_buttons),
152 };
153
154 static struct platform_device ls_hgl_button_device = {
155 .name = "gpio-keys",
156 .id = -1,
157 .num_resources = 0,
158 .dev = {
159 .platform_data = &ls_hgl_button_data,
160 },
161 };
162
163
164 /*****************************************************************************
165 * SATA
166 ****************************************************************************/
167 static struct mv_sata_platform_data ls_hgl_sata_data = {
168 .n_ports = 2,
169 };
170
171
172 /*****************************************************************************
173 * Linkstation LS-HGL specific power off method: reboot
174 ****************************************************************************/
175 /*
176 * On the Linkstation LS-HGL, the shutdown process is following:
177 * - Userland monitors key events until the power switch goes to off position
178 * - The board reboots
179 * - U-boot starts and goes into an idle mode waiting for the user
180 * to move the switch to ON position
181 */
182
ls_hgl_power_off(void)183 static void ls_hgl_power_off(void)
184 {
185 orion5x_restart(REBOOT_HARD, NULL);
186 }
187
188
189 /*****************************************************************************
190 * General Setup
191 ****************************************************************************/
192
193 #define LS_HGL_GPIO_USB_POWER 9
194 #define LS_HGL_GPIO_AUTO_POWER 10
195 #define LS_HGL_GPIO_POWER 8
196
197 #define LS_HGL_GPIO_HDD_POWER 1
198
199 static unsigned int ls_hgl_mpp_modes[] __initdata = {
200 MPP0_GPIO, /* LED_PWR */
201 MPP1_GPIO, /* HDD_PWR */
202 MPP2_GPIO, /* LED_ALARM */
203 MPP3_GPIO, /* LED_INFO */
204 MPP4_UNUSED,
205 MPP5_UNUSED,
206 MPP6_GPIO, /* FAN_LCK */
207 MPP7_GPIO, /* INIT */
208 MPP8_GPIO, /* POWER */
209 MPP9_GPIO, /* USB_PWR */
210 MPP10_GPIO, /* AUTO_POWER */
211 MPP11_UNUSED, /* LED_ETH (dummy) */
212 MPP12_UNUSED,
213 MPP13_UNUSED,
214 MPP14_UNUSED,
215 MPP15_GPIO, /* FUNC */
216 MPP16_UNUSED,
217 MPP17_GPIO, /* LED_FUNC */
218 MPP18_UNUSED,
219 MPP19_UNUSED,
220 0,
221 };
222
ls_hgl_init(void)223 static void __init ls_hgl_init(void)
224 {
225 /*
226 * Setup basic Orion functions. Need to be called early.
227 */
228 orion5x_init();
229
230 orion5x_mpp_conf(ls_hgl_mpp_modes);
231
232 /*
233 * Configure peripherals.
234 */
235 orion5x_ehci0_init();
236 orion5x_ehci1_init();
237 orion5x_eth_init(&ls_hgl_eth_data);
238 orion5x_i2c_init();
239 orion5x_sata_init(&ls_hgl_sata_data);
240 orion5x_uart0_init();
241 orion5x_xor_init();
242
243 mvebu_mbus_add_window_by_id(ORION_MBUS_DEVBUS_BOOT_TARGET,
244 ORION_MBUS_DEVBUS_BOOT_ATTR,
245 LS_HGL_NOR_BOOT_BASE,
246 LS_HGL_NOR_BOOT_SIZE);
247 platform_device_register(&ls_hgl_nor_flash);
248
249 platform_device_register(&ls_hgl_button_device);
250
251 platform_device_register(&ls_hgl_leds);
252
253 i2c_register_board_info(0, &ls_hgl_i2c_rtc, 1);
254
255 /* enable USB power */
256 gpio_set_value(LS_HGL_GPIO_USB_POWER, 1);
257
258 /* register power-off method */
259 pm_power_off = ls_hgl_power_off;
260
261 pr_info("%s: finished\n", __func__);
262 }
263
264 MACHINE_START(LINKSTATION_LS_HGL, "Buffalo Linkstation LS-HGL")
265 /* Maintainer: Zhu Qingsen <zhuqs@cn.fujistu.com> */
266 .atag_offset = 0x100,
267 .nr_irqs = ORION5X_NR_IRQS,
268 .init_machine = ls_hgl_init,
269 .map_io = orion5x_map_io,
270 .init_early = orion5x_init_early,
271 .init_irq = orion5x_init_irq,
272 .init_time = orion5x_timer_init,
273 .fixup = tag_fixup_mem32,
274 .restart = orion5x_restart,
275 MACHINE_END
276