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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 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 | |
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 | .boot_params = 0x00000100, |
255 | .init_machine = edmini_v2_init, |
256 | .map_io = orion5x_map_io, |
257 | .init_irq = orion5x_init_irq, |
258 | .timer = &orion5x_timer, |
259 | .fixup = tag_fixup_mem32, |
260 | MACHINE_END |
261 |
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