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/arch/arm/mach-kirkwood/netspace_v2-setup.c

https://bitbucket.org/sammyz/iscream_thunderc-2.6.35-rebase
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