1 /*
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>
28 #include <linux/leds.h>
29 #include <linux/gpio_keys.h>
30 #include <linux/input.h>
31 #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
66 static struct mtd_partition edmini_v2_partitions[] = {
67 {
68 .name = "Full512kb",
69 .size = 0x00080000,
70 .offset = 0x00000000,
71 .mask_flags = MTD_WRITEABLE,
72 },
73 };
74
75 static 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
81 static 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
88 static 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
102 static 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
112 static 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
121 static struct mv_sata_platform_data edmini_v2_sata_data = {
122 .n_ports = 2,
123 };
124
125 /*****************************************************************************
126 * GPIO LED (simple - doesn't use hardware blinking support)
127 ****************************************************************************/
128
129 #define EDMINI_V2_GPIO_LED_POWER 16
130
131 static 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
139 static struct gpio_led_platform_data edmini_v2_led_data = {
140 .num_leds = ARRAY_SIZE(edmini_v2_leds),
141 .leds = edmini_v2_leds,
142 };
143
144 static 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
158 static 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
167 static struct gpio_keys_platform_data edmini_v2_button_data = {
168 .buttons = edmini_v2_buttons,
169 .nbuttons = ARRAY_SIZE(edmini_v2_buttons),
170 };
171
172 static 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 /*****************************************************************************
181 * General Setup
182 ****************************************************************************/
183 static unsigned int edminiv2_mpp_modes[] __initdata = {
184 MPP0_UNUSED,
185 MPP1_UNUSED,
186 MPP2_UNUSED,
187 MPP3_GPIO, /* RTC interrupt */
188 MPP4_UNUSED,
189 MPP5_UNUSED,
190 MPP6_UNUSED,
191 MPP7_UNUSED,
192 MPP8_UNUSED,
193 MPP9_UNUSED,
194 MPP10_UNUSED,
195 MPP11_UNUSED,
196 MPP12_SATA_LED, /* SATA 0 presence */
197 MPP13_SATA_LED, /* SATA 1 presence */
198 MPP14_SATA_LED, /* SATA 0 active */
199 MPP15_SATA_LED, /* SATA 1 active */
200 /* 16: Power LED control (0 = On, 1 = Off) */
201 MPP16_GPIO,
202 /* 17: Power LED control select (0 = CPLD, 1 = GPIO16) */
203 MPP17_GPIO,
204 /* 18: Power button status (0 = Released, 1 = Pressed) */
205 MPP18_GPIO,
206 MPP19_UNUSED,
207 0,
208 };
209
edmini_v2_init(void)210 static 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);
231 platform_device_register(&edmini_v2_gpio_leds);
232 platform_device_register(&edmini_v2_gpio_buttons);
233
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. */
252 MACHINE_START(EDMINI_V2, "LaCie Ethernet Disk mini V2")
253 /* Maintainer: Christopher Moore <moore@free.fr> */
254 .atag_offset = 0x100,
255 .init_machine = edmini_v2_init,
256 .map_io = orion5x_map_io,
257 .init_early = orion5x_init_early,
258 .init_irq = orion5x_init_irq,
259 .timer = &orion5x_timer,
260 .fixup = tag_fixup_mem32,
261 .restart = orion5x_restart,
262 MACHINE_END
263