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
43static struct physmap_flash_data ls_hgl_nor_flash_data = {
44	.width		= 1,
45};
46
47static 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
53static 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
67static struct mv643xx_eth_platform_data ls_hgl_eth_data = {
68	.phy_addr	= 8,
69};
70
71/*****************************************************************************
72 * RTC 5C372a on I2C bus
73 ****************************************************************************/
74
75static 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
89static 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
108static 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
113static 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
131static 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
152static struct gpio_keys_platform_data ls_hgl_button_data = {
153	.buttons	= ls_hgl_buttons,
154	.nbuttons       = ARRAY_SIZE(ls_hgl_buttons),
155};
156
157static 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 ****************************************************************************/
170static 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
186static 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
202static 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
226static 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
267MACHINE_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,
277MACHINE_END
278