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Christopher Moore0eb66972008-07-18 00:25:10 +02001/*
2 * arch/arm/mach-orion5x/edmini_v2-setup.c
3 *
4 * LaCie Ethernet Disk mini V2 Setup
5 *
6 * Copyright (C) 2008 Christopher Moore <moore@free.fr>
7 * Copyright (C) 2008 Albert Aribaud <albert.aribaud@free.fr>
8 *
9 * This file is licensed under the terms of the GNU General Public
10 * License version 2. This program is licensed "as is" without any
11 * warranty of any kind, whether express or implied.
12 */
13
14/*
15 * TODO: add Orion USB device port init when kernel.org support is added.
16 * TODO: add flash write support: see below.
17 * TODO: add power-off support.
18 * TODO: add I2C EEPROM support.
19 */
20
21#include <linux/kernel.h>
22#include <linux/init.h>
23#include <linux/platform_device.h>
24#include <linux/pci.h>
25#include <linux/irq.h>
26#include <linux/mtd/physmap.h>
27#include <linux/mv643xx_eth.h>
Albert Aribaud3d014b02008-09-19 21:06:25 +020028#include <linux/leds.h>
29#include <linux/gpio_keys.h>
30#include <linux/input.h>
Christopher Moore0eb66972008-07-18 00:25:10 +020031#include <linux/i2c.h>
32#include <linux/ata_platform.h>
33#include <linux/gpio.h>
34#include <asm/mach-types.h>
35#include <asm/mach/arch.h>
36#include <asm/mach/pci.h>
37#include <mach/orion5x.h>
38#include "common.h"
39#include "mpp.h"
40
41/*****************************************************************************
42 * EDMINI_V2 Info
43 ****************************************************************************/
44
45/*
46 * 512KB NOR flash Device bus boot chip select
47 */
48
49#define EDMINI_V2_NOR_BOOT_BASE 0xfff80000
50#define EDMINI_V2_NOR_BOOT_SIZE SZ_512K
51
52/*****************************************************************************
53 * 512KB NOR Flash on BOOT Device
54 ****************************************************************************/
55
56/*
57 * Currently the MTD code does not recognize the MX29LV400CBCT as a bottom
58 * -type device. This could cause risks of accidentally erasing critical
59 * flash sectors. We thus define a single, write-protected partition covering
60 * the whole flash.
61 * TODO: once the flash part TOP/BOTTOM detection issue is sorted out in the MTD
62 * code, break this into at least three partitions: 'u-boot code', 'u-boot
63 * environment' and 'whatever is left'.
64 */
65
66static struct mtd_partition edmini_v2_partitions[] = {
67 {
68 .name = "Full512kb",
69 .size = 0x00080000,
70 .offset = 0x00000000,
71 .mask_flags = MTD_WRITEABLE,
72 },
73};
74
75static struct physmap_flash_data edmini_v2_nor_flash_data = {
76 .width = 1,
77 .parts = edmini_v2_partitions,
78 .nr_parts = ARRAY_SIZE(edmini_v2_partitions),
79};
80
81static struct resource edmini_v2_nor_flash_resource = {
82 .flags = IORESOURCE_MEM,
83 .start = EDMINI_V2_NOR_BOOT_BASE,
84 .end = EDMINI_V2_NOR_BOOT_BASE
85 + EDMINI_V2_NOR_BOOT_SIZE - 1,
86};
87
88static struct platform_device edmini_v2_nor_flash = {
89 .name = "physmap-flash",
90 .id = 0,
91 .dev = {
92 .platform_data = &edmini_v2_nor_flash_data,
93 },
94 .num_resources = 1,
95 .resource = &edmini_v2_nor_flash_resource,
96};
97
98/*****************************************************************************
99 * Ethernet
100 ****************************************************************************/
101
102static struct mv643xx_eth_platform_data edmini_v2_eth_data = {
103 .phy_addr = 8,
104};
105
106/*****************************************************************************
107 * RTC 5C372a on I2C bus
108 ****************************************************************************/
109
110#define EDMINIV2_RTC_GPIO 3
111
112static struct i2c_board_info __initdata edmini_v2_i2c_rtc = {
113 I2C_BOARD_INFO("rs5c372a", 0x32),
114 .irq = 0,
115};
116
117/*****************************************************************************
118 * Sata
119 ****************************************************************************/
120
121static struct mv_sata_platform_data edmini_v2_sata_data = {
122 .n_ports = 2,
123};
124
125/*****************************************************************************
Albert Aribaud3d014b02008-09-19 21:06:25 +0200126 * GPIO LED (simple - doesn't use hardware blinking support)
127 ****************************************************************************/
128
129#define EDMINI_V2_GPIO_LED_POWER 16
130
131static struct gpio_led edmini_v2_leds[] = {
132 {
133 .name = "power:blue",
134 .gpio = EDMINI_V2_GPIO_LED_POWER,
135 .active_low = 1,
136 },
137};
138
139static struct gpio_led_platform_data edmini_v2_led_data = {
140 .num_leds = ARRAY_SIZE(edmini_v2_leds),
141 .leds = edmini_v2_leds,
142};
143
144static struct platform_device edmini_v2_gpio_leds = {
145 .name = "leds-gpio",
146 .id = -1,
147 .dev = {
148 .platform_data = &edmini_v2_led_data,
149 },
150};
151
152/****************************************************************************
153 * GPIO key
154 ****************************************************************************/
155
156#define EDMINI_V2_GPIO_KEY_POWER 18
157
158static struct gpio_keys_button edmini_v2_buttons[] = {
159 {
160 .code = KEY_POWER,
161 .gpio = EDMINI_V2_GPIO_KEY_POWER,
162 .desc = "Power Button",
163 .active_low = 0,
164 },
165};
166
167static struct gpio_keys_platform_data edmini_v2_button_data = {
168 .buttons = edmini_v2_buttons,
169 .nbuttons = ARRAY_SIZE(edmini_v2_buttons),
170};
171
172static struct platform_device edmini_v2_gpio_buttons = {
173 .name = "gpio-keys",
174 .id = -1,
175 .dev = {
176 .platform_data = &edmini_v2_button_data,
177 },
178};
179
180/*****************************************************************************
Christopher Moore0eb66972008-07-18 00:25:10 +0200181 * General Setup
182 ****************************************************************************/
183static struct orion5x_mpp_mode edminiv2_mpp_modes[] __initdata = {
184 { 0, MPP_UNUSED },
185 { 1, MPP_UNUSED },
186 { 2, MPP_UNUSED },
187 { 3, MPP_GPIO }, /* RTC interrupt */
188 { 4, MPP_UNUSED },
189 { 5, MPP_UNUSED },
190 { 6, MPP_UNUSED },
191 { 7, MPP_UNUSED },
192 { 8, MPP_UNUSED },
193 { 9, MPP_UNUSED },
194 { 10, MPP_UNUSED },
195 { 11, MPP_UNUSED },
196 { 12, MPP_SATA_LED }, /* SATA 0 presence */
197 { 13, MPP_SATA_LED }, /* SATA 1 presence */
198 { 14, MPP_SATA_LED }, /* SATA 0 active */
199 { 15, MPP_SATA_LED }, /* SATA 1 active */
200 /* 16: Power LED control (0 = On, 1 = Off) */
201 { 16, MPP_GPIO },
202 /* 17: Power LED control select (0 = CPLD, 1 = GPIO16) */
203 { 17, MPP_GPIO },
204 /* 18: Power button status (0 = Released, 1 = Pressed) */
205 { 18, MPP_GPIO },
206 { 19, MPP_UNUSED },
207 { -1 }
208};
209
210static void __init edmini_v2_init(void)
211{
212 /*
213 * Setup basic Orion functions. Need to be called early.
214 */
215 orion5x_init();
216
217 orion5x_mpp_conf(edminiv2_mpp_modes);
218
219 /*
220 * Configure peripherals.
221 */
222 orion5x_ehci0_init();
223 orion5x_eth_init(&edmini_v2_eth_data);
224 orion5x_i2c_init();
225 orion5x_sata_init(&edmini_v2_sata_data);
226 orion5x_uart0_init();
227
228 orion5x_setup_dev_boot_win(EDMINI_V2_NOR_BOOT_BASE,
229 EDMINI_V2_NOR_BOOT_SIZE);
230 platform_device_register(&edmini_v2_nor_flash);
Albert Aribaud3d014b02008-09-19 21:06:25 +0200231 platform_device_register(&edmini_v2_gpio_leds);
232 platform_device_register(&edmini_v2_gpio_buttons);
Christopher Moore0eb66972008-07-18 00:25:10 +0200233
234 pr_notice("edmini_v2: USB device port, flash write and power-off "
235 "are not yet supported.\n");
236
237 /* Get RTC IRQ and register the chip */
238 if (gpio_request(EDMINIV2_RTC_GPIO, "rtc") == 0) {
239 if (gpio_direction_input(EDMINIV2_RTC_GPIO) == 0)
240 edmini_v2_i2c_rtc.irq = gpio_to_irq(EDMINIV2_RTC_GPIO);
241 else
242 gpio_free(EDMINIV2_RTC_GPIO);
243 }
244
245 if (edmini_v2_i2c_rtc.irq == 0)
246 pr_warning("edmini_v2: failed to get RTC IRQ\n");
247
248 i2c_register_board_info(0, &edmini_v2_i2c_rtc, 1);
249}
250
251/* Warning: LaCie use a wrong mach-type (0x20e=526) in their bootloader. */
252MACHINE_START(EDMINI_V2, "LaCie Ethernet Disk mini V2")
253 /* Maintainer: Christopher Moore <moore@free.fr> */
254 .phys_io = ORION5X_REGS_PHYS_BASE,
255 .io_pg_offst = ((ORION5X_REGS_VIRT_BASE) >> 18) & 0xFFFC,
256 .boot_params = 0x00000100,
257 .init_machine = edmini_v2_init,
258 .map_io = orion5x_map_io,
259 .init_irq = orion5x_init_irq,
260 .timer = &orion5x_timer,
261 .fixup = tag_fixup_mem32,
262MACHINE_END