/arch/arm/mach-kirkwood/netspace_v2-setup.c
C | 334 lines | 221 code | 45 blank | 68 comment | 11 complexity | b6211ff1d542dab6c716b39f235cc3e3 MD5 | raw file
Possible License(s): GPL-2.0, LGPL-2.0, AGPL-1.0
1/*
2 * arch/arm/mach-kirkwood/netspace_v2-setup.c
3 *
4 * LaCie Network Space v2 board setup
5 *
6 * Copyright (C) 2009 Simon Guinot <sguinot@lacie.com>
7 * Copyright (C) 2009 Benoît Canet <benoit.canet@gmail.com>
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
13 *
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22 */
23
24#include <linux/kernel.h>
25#include <linux/init.h>
26#include <linux/platform_device.h>
27#include <linux/mtd/physmap.h>
28#include <linux/spi/flash.h>
29#include <linux/spi/spi.h>
30#include <linux/ata_platform.h>
31#include <linux/mv643xx_eth.h>
32#include <linux/i2c.h>
33#include <linux/i2c/at24.h>
34#include <linux/input.h>
35#include <linux/gpio.h>
36#include <linux/gpio_keys.h>
37#include <linux/leds.h>
38#include <asm/mach-types.h>
39#include <asm/mach/arch.h>
40#include <asm/mach/time.h>
41#include <mach/kirkwood.h>
42#include <plat/time.h>
43#include "common.h"
44#include "mpp.h"
45
46/*****************************************************************************
47 * 512KB SPI Flash on Boot Device (MACRONIX MX25L4005)
48 ****************************************************************************/
49
50static struct mtd_partition netspace_v2_flash_parts[] = {
51 {
52 .name = "u-boot",
53 .size = MTDPART_SIZ_FULL,
54 .offset = 0,
55 .mask_flags = MTD_WRITEABLE, /* force read-only */
56 },
57};
58
59static const struct flash_platform_data netspace_v2_flash = {
60 .type = "mx25l4005a",
61 .name = "spi_flash",
62 .parts = netspace_v2_flash_parts,
63 .nr_parts = ARRAY_SIZE(netspace_v2_flash_parts),
64};
65
66static struct spi_board_info __initdata netspace_v2_spi_slave_info[] = {
67 {
68 .modalias = "m25p80",
69 .platform_data = &netspace_v2_flash,
70 .irq = -1,
71 .max_speed_hz = 20000000,
72 .bus_num = 0,
73 .chip_select = 0,
74 },
75};
76
77/*****************************************************************************
78 * Ethernet
79 ****************************************************************************/
80
81static struct mv643xx_eth_platform_data netspace_v2_ge00_data = {
82 .phy_addr = MV643XX_ETH_PHY_ADDR(8),
83};
84
85/*****************************************************************************
86 * I2C devices
87 ****************************************************************************/
88
89static struct at24_platform_data at24c04 = {
90 .byte_len = SZ_4K / 8,
91 .page_size = 16,
92};
93
94/*
95 * i2c addr | chip | description
96 * 0x50 | HT24LC04 | eeprom (512B)
97 */
98
99static struct i2c_board_info __initdata netspace_v2_i2c_info[] = {
100 {
101 I2C_BOARD_INFO("24c04", 0x50),
102 .platform_data = &at24c04,
103 }
104};
105
106/*****************************************************************************
107 * SATA
108 ****************************************************************************/
109
110static struct mv_sata_platform_data netspace_v2_sata_data = {
111 .n_ports = 2,
112};
113
114#define NETSPACE_V2_GPIO_SATA0_POWER 16
115#define NETSPACE_V2_GPIO_SATA1_POWER 17
116
117static void __init netspace_v2_sata_power_init(void)
118{
119 int err;
120
121 err = gpio_request(NETSPACE_V2_GPIO_SATA0_POWER, "SATA0 power");
122 if (err == 0) {
123 err = gpio_direction_output(NETSPACE_V2_GPIO_SATA0_POWER, 1);
124 if (err)
125 gpio_free(NETSPACE_V2_GPIO_SATA0_POWER);
126 }
127 if (err)
128 pr_err("netspace_v2: failed to setup SATA0 power\n");
129}
130
131/*****************************************************************************
132 * GPIO keys
133 ****************************************************************************/
134
135#define NETSPACE_V2_PUSH_BUTTON 32
136
137static struct gpio_keys_button netspace_v2_buttons[] = {
138 [0] = {
139 .code = KEY_POWER,
140 .gpio = NETSPACE_V2_PUSH_BUTTON,
141 .desc = "Power push button",
142 .active_low = 0,
143 },
144};
145
146static struct gpio_keys_platform_data netspace_v2_button_data = {
147 .buttons = netspace_v2_buttons,
148 .nbuttons = ARRAY_SIZE(netspace_v2_buttons),
149};
150
151static struct platform_device netspace_v2_gpio_buttons = {
152 .name = "gpio-keys",
153 .id = -1,
154 .dev = {
155 .platform_data = &netspace_v2_button_data,
156 },
157};
158
159/*****************************************************************************
160 * GPIO LEDs
161 ****************************************************************************/
162
163/*
164 * The blue front LED is wired to a CPLD and can blink in relation with the
165 * SATA activity.
166 *
167 * The following array detail the different LED registers and the combination
168 * of their possible values:
169 *
170 * cmd_led | slow_led | /SATA active | LED state
171 * | | |
172 * 1 | 0 | x | off
173 * - | 1 | x | on
174 * 0 | 0 | 1 | on
175 * 0 | 0 | 0 | blink (rate 300ms)
176 */
177
178#define NETSPACE_V2_GPIO_RED_LED 12
179#define NETSPACE_V2_GPIO_BLUE_LED_SLOW 29
180#define NETSPACE_V2_GPIO_BLUE_LED_CMD 30
181
182
183static struct gpio_led netspace_v2_gpio_led_pins[] = {
184 {
185 .name = "ns_v2:blue:sata",
186 .default_trigger = "default-on",
187 .gpio = NETSPACE_V2_GPIO_BLUE_LED_CMD,
188 .active_low = 1,
189 },
190 {
191 .name = "ns_v2:red:fail",
192 .gpio = NETSPACE_V2_GPIO_RED_LED,
193 },
194};
195
196static struct gpio_led_platform_data netspace_v2_gpio_leds_data = {
197 .num_leds = ARRAY_SIZE(netspace_v2_gpio_led_pins),
198 .leds = netspace_v2_gpio_led_pins,
199};
200
201static struct platform_device netspace_v2_gpio_leds = {
202 .name = "leds-gpio",
203 .id = -1,
204 .dev = {
205 .platform_data = &netspace_v2_gpio_leds_data,
206 },
207};
208
209static void __init netspace_v2_gpio_leds_init(void)
210{
211 int err;
212
213 /* Configure register slow_led to allow SATA activity LED blinking */
214 err = gpio_request(NETSPACE_V2_GPIO_BLUE_LED_SLOW, "blue LED slow");
215 if (err == 0) {
216 err = gpio_direction_output(NETSPACE_V2_GPIO_BLUE_LED_SLOW, 0);
217 if (err)
218 gpio_free(NETSPACE_V2_GPIO_BLUE_LED_SLOW);
219 }
220 if (err)
221 pr_err("netspace_v2: failed to configure blue LED slow GPIO\n");
222
223 platform_device_register(&netspace_v2_gpio_leds);
224}
225
226/*****************************************************************************
227 * Timer
228 ****************************************************************************/
229
230static void netspace_v2_timer_init(void)
231{
232 kirkwood_tclk = 166666667;
233 orion_time_init(IRQ_KIRKWOOD_BRIDGE, kirkwood_tclk);
234}
235
236struct sys_timer netspace_v2_timer = {
237 .init = netspace_v2_timer_init,
238};
239
240/*****************************************************************************
241 * General Setup
242 ****************************************************************************/
243
244static unsigned int netspace_v2_mpp_config[] __initdata = {
245 MPP0_SPI_SCn,
246 MPP1_SPI_MOSI,
247 MPP2_SPI_SCK,
248 MPP3_SPI_MISO,
249 MPP4_NF_IO6,
250 MPP5_NF_IO7,
251 MPP6_SYSRST_OUTn,
252 MPP8_TW_SDA,
253 MPP9_TW_SCK,
254 MPP10_UART0_TXD,
255 MPP11_UART0_RXD,
256 MPP12_GPO, /* Red led */
257 MPP14_GPIO, /* USB fuse */
258 MPP16_GPIO, /* SATA 0 power */
259 MPP18_NF_IO0,
260 MPP19_NF_IO1,
261 MPP20_SATA1_ACTn,
262 MPP21_SATA0_ACTn,
263 MPP24_GPIO, /* USB mode select */
264 MPP25_GPIO, /* Fan rotation fail */
265 MPP26_GPIO, /* USB device vbus */
266 MPP28_GPIO, /* USB enable host vbus */
267 MPP29_GPIO, /* Blue led (slow register) */
268 MPP30_GPIO, /* Blue led (command register) */
269 MPP31_GPIO, /* Board power off */
270 MPP32_GPIO, /* Power button (0 = Released, 1 = Pushed) */
271 0
272};
273
274#define NETSPACE_V2_GPIO_POWER_OFF 31
275
276static void netspace_v2_power_off(void)
277{
278 gpio_set_value(NETSPACE_V2_GPIO_POWER_OFF, 1);
279}
280
281static void __init netspace_v2_init(void)
282{
283 /*
284 * Basic setup. Needs to be called early.
285 */
286 kirkwood_init();
287 kirkwood_mpp_conf(netspace_v2_mpp_config);
288
289 netspace_v2_sata_power_init();
290
291 kirkwood_ehci_init();
292 kirkwood_ge00_init(&netspace_v2_ge00_data);
293 kirkwood_sata_init(&netspace_v2_sata_data);
294 kirkwood_uart0_init();
295 spi_register_board_info(netspace_v2_spi_slave_info,
296 ARRAY_SIZE(netspace_v2_spi_slave_info));
297 kirkwood_spi_init();
298 kirkwood_i2c_init();
299 i2c_register_board_info(0, netspace_v2_i2c_info,
300 ARRAY_SIZE(netspace_v2_i2c_info));
301
302 netspace_v2_gpio_leds_init();
303 platform_device_register(&netspace_v2_gpio_buttons);
304
305 if (gpio_request(NETSPACE_V2_GPIO_POWER_OFF, "power-off") == 0 &&
306 gpio_direction_output(NETSPACE_V2_GPIO_POWER_OFF, 0) == 0)
307 pm_power_off = netspace_v2_power_off;
308 else
309 pr_err("netspace_v2: failed to configure power-off GPIO\n");
310}
311
312#ifdef CONFIG_MACH_NETSPACE_V2
313MACHINE_START(NETSPACE_V2, "LaCie Network Space v2")
314 .phys_io = KIRKWOOD_REGS_PHYS_BASE,
315 .io_pg_offst = ((KIRKWOOD_REGS_VIRT_BASE) >> 18) & 0xfffc,
316 .boot_params = 0x00000100,
317 .init_machine = netspace_v2_init,
318 .map_io = kirkwood_map_io,
319 .init_irq = kirkwood_init_irq,
320 .timer = &netspace_v2_timer,
321MACHINE_END
322#endif
323
324#ifdef CONFIG_MACH_INETSPACE_V2
325MACHINE_START(INETSPACE_V2, "LaCie Internet Space v2")
326 .phys_io = KIRKWOOD_REGS_PHYS_BASE,
327 .io_pg_offst = ((KIRKWOOD_REGS_VIRT_BASE) >> 18) & 0xfffc,
328 .boot_params = 0x00000100,
329 .init_machine = netspace_v2_init,
330 .map_io = kirkwood_map_io,
331 .init_irq = kirkwood_init_irq,
332 .timer = &netspace_v2_timer,
333MACHINE_END
334#endif