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
43static struct physmap_flash_data lsmini_nor_flash_data = {
44	.width		= 1,
45};
46
47static 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
53static 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
67static struct mv643xx_eth_platform_data lsmini_eth_data = {
68	.phy_addr	= 8,
69};
70
71/*****************************************************************************
72 * RTC 5C372a on I2C bus
73 ****************************************************************************/
74
75static 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
88static 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
107static struct gpio_led_platform_data lsmini_led_data = {
108	.leds	   = lsmini_led_pins,
109	.num_leds       = ARRAY_SIZE(lsmini_led_pins),
110};
111
112static 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
131static 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
152static struct gpio_keys_platform_data lsmini_button_data = {
153	.buttons	= lsmini_buttons,
154	.nbuttons       = ARRAY_SIZE(lsmini_buttons),
155};
156
157static 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 ****************************************************************************/
170static 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
186static 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
203static 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
227static 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
269MACHINE_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,
279MACHINE_END
280#endif
281