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555a3656 HVR |
1 | /* |
2 | * arch/arm/mach-orion/dns323-setup.c | |
3 | * | |
4 | * Copyright (C) 2007 Herbert Valerio Riedel <hvr@gnu.org> | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU Lesser General Public License as | |
8 | * published by the Free Software Foundation; either version 2 of the | |
9 | * License, or (at your option) any later version. | |
10 | * | |
11 | */ | |
12 | ||
13 | #include <linux/kernel.h> | |
14 | #include <linux/init.h> | |
15 | #include <linux/platform_device.h> | |
16 | #include <linux/pci.h> | |
17 | #include <linux/irq.h> | |
18 | #include <linux/mtd/physmap.h> | |
19 | #include <linux/mv643xx_eth.h> | |
20 | #include <linux/leds.h> | |
21 | #include <linux/gpio_keys.h> | |
22 | #include <linux/input.h> | |
23 | #include <linux/i2c.h> | |
24 | #include <asm/mach-types.h> | |
25 | #include <asm/gpio.h> | |
26 | #include <asm/mach/arch.h> | |
27 | #include <asm/mach/pci.h> | |
28 | #include <asm/arch/orion.h> | |
29 | #include <asm/arch/platform.h> | |
30 | #include "common.h" | |
31 | ||
32 | #define DNS323_GPIO_LED_RIGHT_AMBER 1 | |
33 | #define DNS323_GPIO_LED_LEFT_AMBER 2 | |
34 | #define DNS323_GPIO_LED_POWER 5 | |
35 | #define DNS323_GPIO_OVERTEMP 6 | |
36 | #define DNS323_GPIO_RTC 7 | |
37 | #define DNS323_GPIO_POWER_OFF 8 | |
38 | #define DNS323_GPIO_KEY_POWER 9 | |
39 | #define DNS323_GPIO_KEY_RESET 10 | |
40 | ||
41 | /**************************************************************************** | |
42 | * PCI setup | |
43 | */ | |
44 | ||
45 | static int __init dns323_pci_map_irq(struct pci_dev *dev, u8 slot, u8 pin) | |
46 | { | |
47 | /* PCI-E */ | |
48 | if (dev->bus->number == orion_pcie_local_bus_nr()) | |
49 | return IRQ_ORION_PCIE0_INT; | |
50 | ||
51 | pr_err("%s: requested mapping for unknown bus\n", __func__); | |
52 | ||
53 | return -1; | |
54 | } | |
55 | ||
56 | static struct hw_pci dns323_pci __initdata = { | |
57 | .nr_controllers = 1, | |
58 | .swizzle = pci_std_swizzle, | |
59 | .setup = orion_pci_sys_setup, | |
60 | .scan = orion_pci_sys_scan_bus, | |
61 | .map_irq = dns323_pci_map_irq, | |
62 | }; | |
63 | ||
64 | static int __init dns323_pci_init(void) | |
65 | { | |
66 | if (machine_is_dns323()) | |
67 | pci_common_init(&dns323_pci); | |
68 | ||
69 | return 0; | |
70 | } | |
71 | ||
72 | subsys_initcall(dns323_pci_init); | |
73 | ||
74 | /**************************************************************************** | |
75 | * Ethernet | |
76 | */ | |
77 | ||
78 | static struct mv643xx_eth_platform_data dns323_eth_data = { | |
79 | .phy_addr = 8, | |
80 | .force_phy_addr = 1, | |
81 | }; | |
82 | ||
83 | /**************************************************************************** | |
84 | * 8MiB NOR flash (Spansion S29GL064M90TFIR4) | |
85 | * | |
86 | * Layout as used by D-Link: | |
87 | * 0x00000000-0x00010000 : "MTD1" | |
88 | * 0x00010000-0x00020000 : "MTD2" | |
89 | * 0x00020000-0x001a0000 : "Linux Kernel" | |
90 | * 0x001a0000-0x007d0000 : "File System" | |
91 | * 0x007d0000-0x00800000 : "u-boot" | |
92 | */ | |
93 | ||
94 | #define DNS323_NOR_BOOT_BASE 0xf4000000 | |
95 | #define DNS323_NOR_BOOT_SIZE SZ_8M | |
96 | ||
97 | static struct mtd_partition dns323_partitions[] = { | |
98 | { | |
99 | .name = "MTD1", | |
100 | .size = 0x00010000, | |
101 | .offset = 0, | |
102 | }, { | |
103 | .name = "MTD2", | |
104 | .size = 0x00010000, | |
105 | .offset = 0x00010000, | |
106 | }, { | |
107 | .name = "Linux Kernel", | |
108 | .size = 0x00180000, | |
109 | .offset = 0x00020000, | |
110 | }, { | |
111 | .name = "File System", | |
112 | .size = 0x00630000, | |
113 | .offset = 0x001A0000, | |
114 | }, { | |
115 | .name = "u-boot", | |
116 | .size = 0x00030000, | |
117 | .offset = 0x007d0000, | |
118 | } | |
119 | }; | |
120 | ||
121 | static struct physmap_flash_data dns323_nor_flash_data = { | |
122 | .width = 1, | |
123 | .parts = dns323_partitions, | |
124 | .nr_parts = ARRAY_SIZE(dns323_partitions) | |
125 | }; | |
126 | ||
127 | static struct resource dns323_nor_flash_resource = { | |
128 | .flags = IORESOURCE_MEM, | |
129 | .start = DNS323_NOR_BOOT_BASE, | |
130 | .end = DNS323_NOR_BOOT_BASE + DNS323_NOR_BOOT_SIZE - 1, | |
131 | }; | |
132 | ||
133 | static struct platform_device dns323_nor_flash = { | |
134 | .name = "physmap-flash", | |
135 | .id = 0, | |
136 | .dev = { .platform_data = &dns323_nor_flash_data, }, | |
137 | .resource = &dns323_nor_flash_resource, | |
138 | .num_resources = 1, | |
139 | }; | |
140 | ||
141 | /**************************************************************************** | |
142 | * GPIO LEDs (simple - doesn't use hardware blinking support) | |
143 | */ | |
144 | ||
145 | static struct gpio_led dns323_leds[] = { | |
146 | { | |
147 | .name = "power:blue", | |
148 | .gpio = DNS323_GPIO_LED_POWER, | |
149 | .active_low = 1, | |
150 | }, { | |
151 | .name = "right:amber", | |
152 | .gpio = DNS323_GPIO_LED_RIGHT_AMBER, | |
153 | .active_low = 1, | |
154 | }, { | |
155 | .name = "left:amber", | |
156 | .gpio = DNS323_GPIO_LED_LEFT_AMBER, | |
157 | .active_low = 1, | |
158 | }, | |
159 | }; | |
160 | ||
161 | static struct gpio_led_platform_data dns323_led_data = { | |
162 | .num_leds = ARRAY_SIZE(dns323_leds), | |
163 | .leds = dns323_leds, | |
164 | }; | |
165 | ||
166 | static struct platform_device dns323_gpio_leds = { | |
167 | .name = "leds-gpio", | |
168 | .id = -1, | |
169 | .dev = { .platform_data = &dns323_led_data, }, | |
170 | }; | |
171 | ||
172 | /**************************************************************************** | |
173 | * GPIO Attached Keys | |
174 | */ | |
175 | ||
176 | static struct gpio_keys_button dns323_buttons[] = { | |
177 | { | |
178 | .code = KEY_RESTART, | |
179 | .gpio = DNS323_GPIO_KEY_RESET, | |
180 | .desc = "Reset Button", | |
181 | .active_low = 1, | |
182 | }, | |
183 | { | |
184 | .code = KEY_POWER, | |
185 | .gpio = DNS323_GPIO_KEY_POWER, | |
186 | .desc = "Power Button", | |
187 | .active_low = 1, | |
188 | } | |
189 | }; | |
190 | ||
191 | static struct gpio_keys_platform_data dns323_button_data = { | |
192 | .buttons = dns323_buttons, | |
193 | .nbuttons = ARRAY_SIZE(dns323_buttons), | |
194 | }; | |
195 | ||
196 | static struct platform_device dns323_button_device = { | |
197 | .name = "gpio-keys", | |
198 | .id = -1, | |
199 | .num_resources = 0, | |
200 | .dev = { .platform_data = &dns323_button_data, }, | |
201 | }; | |
202 | ||
203 | /**************************************************************************** | |
204 | * General Setup | |
205 | */ | |
206 | ||
207 | static struct platform_device *dns323_plat_devices[] __initdata = { | |
208 | &dns323_nor_flash, | |
209 | &dns323_gpio_leds, | |
210 | &dns323_button_device, | |
211 | }; | |
212 | ||
213 | /* | |
214 | * On the DNS-323 the following devices are attached via I2C: | |
215 | * | |
216 | * i2c addr | chip | description | |
217 | * 0x3e | GMT G760Af | fan speed PWM controller | |
218 | * 0x48 | GMT G751-2f | temp. sensor and therm. watchdog (LM75 compatible) | |
219 | * 0x68 | ST M41T80 | RTC w/ alarm | |
220 | */ | |
221 | static struct i2c_board_info __initdata dns323_i2c_devices[] = { | |
222 | { | |
223 | I2C_BOARD_INFO("g760a", 0x3e), | |
224 | .type = "g760a", | |
225 | }, | |
226 | #if 0 | |
227 | /* this entry requires the new-style driver model lm75 driver, | |
228 | * for the meantime "insmod lm75.ko force_lm75=0,0x48" is needed */ | |
229 | { | |
230 | I2C_BOARD_INFO("lm75", 0x48), | |
231 | .type = "g751", | |
232 | }, | |
233 | #endif | |
234 | { | |
235 | I2C_BOARD_INFO("rtc-m41t80", 0x68), | |
236 | .type = "m41t80", | |
237 | } | |
238 | }; | |
239 | ||
240 | /* DNS-323 specific power off method */ | |
241 | static void dns323_power_off(void) | |
242 | { | |
243 | pr_info("%s: triggering power-off...\n", __func__); | |
244 | gpio_set_value(DNS323_GPIO_POWER_OFF, 1); | |
245 | } | |
246 | ||
247 | static void __init dns323_init(void) | |
248 | { | |
249 | /* Setup basic Orion functions. Need to be called early. */ | |
250 | orion_init(); | |
251 | ||
252 | /* setup flash mapping | |
253 | * CS3 holds a 8 MB Spansion S29GL064M90TFIR4 | |
254 | */ | |
255 | orion_setup_cpu_win(ORION_DEV_BOOT, DNS323_NOR_BOOT_BASE, | |
256 | DNS323_NOR_BOOT_SIZE, -1); | |
257 | ||
258 | /* DNS-323 has a Marvell 88X7042 SATA controller attached via PCIE | |
259 | * | |
260 | * Open a special address decode windows for the PCIE WA. | |
261 | */ | |
7f74c2c7 LB |
262 | orion_write(ORION_REGS_VIRT_BASE | 0x20074, ORION_PCIE_WA_PHYS_BASE); |
263 | orion_write(ORION_REGS_VIRT_BASE | 0x20070, | |
555a3656 HVR |
264 | (0x7941 | (((ORION_PCIE_WA_SIZE >> 16) - 1)) << 16)); |
265 | ||
266 | /* set MPP to 0 as D-Link's 2.6.12.6 kernel did */ | |
267 | orion_write(MPP_0_7_CTRL, 0); | |
268 | orion_write(MPP_8_15_CTRL, 0); | |
269 | orion_write(MPP_16_19_CTRL, 0); | |
270 | orion_write(MPP_DEV_CTRL, 0); | |
271 | ||
272 | /* Define used GPIO pins | |
273 | ||
274 | GPIO Map: | |
275 | ||
276 | | 0 | | PEX_RST_OUT (not controlled by GPIO) | |
277 | | 1 | Out | right amber LED (= sata ch0 LED) (low-active) | |
278 | | 2 | Out | left amber LED (= sata ch1 LED) (low-active) | |
279 | | 3 | Out | //unknown// | |
280 | | 4 | Out | power button LED (low-active, together with pin #5) | |
281 | | 5 | Out | power button LED (low-active, together with pin #4) | |
282 | | 6 | In | GMT G751-2f overtemp. shutdown signal (low-active) | |
283 | | 7 | In | M41T80 nIRQ/OUT/SQW signal | |
284 | | 8 | Out | triggers power off (high-active) | |
285 | | 9 | In | power button switch (low-active) | |
286 | | 10 | In | reset button switch (low-active) | |
287 | | 11 | Out | //unknown// | |
288 | | 12 | Out | //unknown// | |
289 | | 13 | Out | //unknown// | |
290 | | 14 | Out | //unknown// | |
291 | | 15 | Out | //unknown// | |
292 | */ | |
293 | orion_gpio_set_valid_pins(0x07f6); | |
294 | ||
295 | /* register dns323 specific power-off method */ | |
296 | if ((gpio_request(DNS323_GPIO_POWER_OFF, "POWEROFF") != 0) | |
297 | || (gpio_direction_output(DNS323_GPIO_POWER_OFF, 0) != 0)) | |
298 | pr_err("DNS323: failed to setup power-off GPIO\n"); | |
299 | ||
300 | pm_power_off = dns323_power_off; | |
301 | ||
302 | /* register flash and other platform devices */ | |
303 | platform_add_devices(dns323_plat_devices, | |
304 | ARRAY_SIZE(dns323_plat_devices)); | |
305 | ||
306 | i2c_register_board_info(0, dns323_i2c_devices, | |
307 | ARRAY_SIZE(dns323_i2c_devices)); | |
308 | ||
309 | orion_eth_init(&dns323_eth_data); | |
310 | } | |
311 | ||
312 | /* Warning: D-Link uses a wrong mach-type (=526) in their bootloader */ | |
313 | MACHINE_START(DNS323, "D-Link DNS-323") | |
314 | /* Maintainer: Herbert Valerio Riedel <hvr@gnu.org> */ | |
7f74c2c7 LB |
315 | .phys_io = ORION_REGS_PHYS_BASE, |
316 | .io_pg_offst = ((ORION_REGS_VIRT_BASE) >> 18) & 0xFFFC, | |
555a3656 HVR |
317 | .boot_params = 0x00000100, |
318 | .init_machine = dns323_init, | |
319 | .map_io = orion_map_io, | |
320 | .init_irq = orion_init_irq, | |
321 | .timer = &orion_timer, | |
be73a347 | 322 | .fixup = tag_fixup_mem32, |
555a3656 | 323 | MACHINE_END |