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9b6553cd | 1 | /* |
f30c2269 | 2 | * linux/arch/arm/mach-omap2/board-apollon.c |
9b6553cd TL |
3 | * |
4 | * Copyright (C) 2005,2006 Samsung Electronics | |
5 | * Author: Kyungmin Park <kyungmin.park@samsung.com> | |
6 | * | |
7 | * Modified from mach-omap/omap2/board-h4.c | |
8 | * | |
9 | * Code for apollon OMAP2 board. Should work on many OMAP2 systems where | |
10 | * the bootloader passes the board-specific data to the kernel. | |
11 | * Do not put any board specific code to this file; create a new machine | |
12 | * type if you need custom low-level initializations. | |
13 | * | |
14 | * This program is free software; you can redistribute it and/or modify | |
15 | * it under the terms of the GNU General Public License version 2 as | |
16 | * published by the Free Software Foundation. | |
17 | */ | |
18 | ||
19 | #include <linux/kernel.h> | |
20 | #include <linux/init.h> | |
21 | #include <linux/platform_device.h> | |
22 | #include <linux/mtd/mtd.h> | |
23 | #include <linux/mtd/partitions.h> | |
24 | #include <linux/mtd/onenand.h> | |
463cab36 | 25 | #include <linux/irq.h> |
9b6553cd TL |
26 | #include <linux/interrupt.h> |
27 | #include <linux/delay.h> | |
f0248408 KP |
28 | #include <linux/leds.h> |
29 | #include <linux/irq.h> | |
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30 | |
31 | #include <asm/hardware.h> | |
32 | #include <asm/mach-types.h> | |
33 | #include <asm/mach/arch.h> | |
34 | #include <asm/mach/flash.h> | |
35 | ||
36 | #include <asm/arch/gpio.h> | |
f0248408 | 37 | #include <asm/arch/led.h> |
9b6553cd TL |
38 | #include <asm/arch/mux.h> |
39 | #include <asm/arch/usb.h> | |
40 | #include <asm/arch/board.h> | |
41 | #include <asm/arch/common.h> | |
f0248408 | 42 | #include <asm/arch/gpmc.h> |
9b6553cd TL |
43 | #include "prcm-regs.h" |
44 | ||
45 | /* LED & Switch macros */ | |
46 | #define LED0_GPIO13 13 | |
47 | #define LED1_GPIO14 14 | |
48 | #define LED2_GPIO15 15 | |
49 | #define SW_ENTER_GPIO16 16 | |
50 | #define SW_UP_GPIO17 17 | |
51 | #define SW_DOWN_GPIO58 58 | |
52 | ||
f0248408 KP |
53 | #define APOLLON_FLASH_CS 0 |
54 | #define APOLLON_ETH_CS 1 | |
55 | ||
9b6553cd TL |
56 | static struct mtd_partition apollon_partitions[] = { |
57 | { | |
58 | .name = "X-Loader + U-Boot", | |
59 | .offset = 0, | |
60 | .size = SZ_128K, | |
61 | .mask_flags = MTD_WRITEABLE, | |
62 | }, | |
63 | { | |
64 | .name = "params", | |
65 | .offset = MTDPART_OFS_APPEND, | |
66 | .size = SZ_128K, | |
67 | }, | |
68 | { | |
69 | .name = "kernel", | |
70 | .offset = MTDPART_OFS_APPEND, | |
71 | .size = SZ_2M, | |
72 | }, | |
73 | { | |
74 | .name = "rootfs", | |
75 | .offset = MTDPART_OFS_APPEND, | |
76 | .size = SZ_16M, | |
77 | }, | |
78 | { | |
79 | .name = "filesystem00", | |
80 | .offset = MTDPART_OFS_APPEND, | |
81 | .size = SZ_32M, | |
82 | }, | |
83 | { | |
84 | .name = "filesystem01", | |
85 | .offset = MTDPART_OFS_APPEND, | |
86 | .size = MTDPART_SIZ_FULL, | |
87 | }, | |
88 | }; | |
89 | ||
90 | static struct flash_platform_data apollon_flash_data = { | |
91 | .parts = apollon_partitions, | |
92 | .nr_parts = ARRAY_SIZE(apollon_partitions), | |
93 | }; | |
94 | ||
f0248408 KP |
95 | static struct resource apollon_flash_resource[] = { |
96 | [0] = { | |
97 | .flags = IORESOURCE_MEM, | |
98 | }, | |
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99 | }; |
100 | ||
101 | static struct platform_device apollon_onenand_device = { | |
102 | .name = "onenand", | |
103 | .id = -1, | |
104 | .dev = { | |
105 | .platform_data = &apollon_flash_data, | |
106 | }, | |
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107 | .num_resources = ARRAY_SIZE(apollon_flash_resource), |
108 | .resource = apollon_flash_resource, | |
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109 | }; |
110 | ||
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111 | static void __init apollon_flash_init(void) |
112 | { | |
113 | unsigned long base; | |
114 | ||
115 | if (gpmc_cs_request(APOLLON_FLASH_CS, SZ_128K, &base) < 0) { | |
116 | printk(KERN_ERR "Cannot request OneNAND GPMC CS\n"); | |
117 | return; | |
118 | } | |
119 | apollon_flash_resource[0].start = base; | |
120 | apollon_flash_resource[0].end = base + SZ_128K - 1; | |
121 | } | |
122 | ||
9b6553cd TL |
123 | static struct resource apollon_smc91x_resources[] = { |
124 | [0] = { | |
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125 | .flags = IORESOURCE_MEM, |
126 | }, | |
127 | [1] = { | |
128 | .start = OMAP_GPIO_IRQ(APOLLON_ETHR_GPIO_IRQ), | |
129 | .end = OMAP_GPIO_IRQ(APOLLON_ETHR_GPIO_IRQ), | |
130 | .flags = IORESOURCE_IRQ, | |
131 | }, | |
132 | }; | |
133 | ||
134 | static struct platform_device apollon_smc91x_device = { | |
135 | .name = "smc91x", | |
136 | .id = -1, | |
137 | .num_resources = ARRAY_SIZE(apollon_smc91x_resources), | |
138 | .resource = apollon_smc91x_resources, | |
139 | }; | |
140 | ||
141 | static struct platform_device apollon_lcd_device = { | |
142 | .name = "apollon_lcd", | |
143 | .id = -1, | |
144 | }; | |
145 | ||
f0248408 KP |
146 | static struct omap_led_config apollon_led_config[] = { |
147 | { | |
148 | .cdev = { | |
149 | .name = "apollon:led0", | |
150 | }, | |
151 | .gpio = LED0_GPIO13, | |
152 | }, | |
153 | { | |
154 | .cdev = { | |
155 | .name = "apollon:led1", | |
156 | }, | |
157 | .gpio = LED1_GPIO14, | |
158 | }, | |
159 | { | |
160 | .cdev = { | |
161 | .name = "apollon:led2", | |
162 | }, | |
163 | .gpio = LED2_GPIO15, | |
164 | }, | |
165 | }; | |
166 | ||
167 | static struct omap_led_platform_data apollon_led_data = { | |
168 | .nr_leds = ARRAY_SIZE(apollon_led_config), | |
169 | .leds = apollon_led_config, | |
170 | }; | |
171 | ||
172 | static struct platform_device apollon_led_device = { | |
173 | .name = "omap-led", | |
174 | .id = -1, | |
175 | .dev = { | |
176 | .platform_data = &apollon_led_data, | |
177 | }, | |
178 | }; | |
179 | ||
9b6553cd TL |
180 | static struct platform_device *apollon_devices[] __initdata = { |
181 | &apollon_onenand_device, | |
182 | &apollon_smc91x_device, | |
183 | &apollon_lcd_device, | |
f0248408 | 184 | &apollon_led_device, |
9b6553cd TL |
185 | }; |
186 | ||
187 | static inline void __init apollon_init_smc91x(void) | |
188 | { | |
f0248408 KP |
189 | unsigned long base; |
190 | ||
9b6553cd TL |
191 | /* Make sure CS1 timings are correct */ |
192 | GPMC_CONFIG1_1 = 0x00011203; | |
193 | GPMC_CONFIG2_1 = 0x001f1f01; | |
194 | GPMC_CONFIG3_1 = 0x00080803; | |
195 | GPMC_CONFIG4_1 = 0x1c091c09; | |
196 | GPMC_CONFIG5_1 = 0x041f1f1f; | |
197 | GPMC_CONFIG6_1 = 0x000004c4; | |
f0248408 KP |
198 | |
199 | if (gpmc_cs_request(APOLLON_ETH_CS, SZ_16M, &base) < 0) { | |
200 | printk(KERN_ERR "Failed to request GPMC CS for smc91x\n"); | |
201 | return; | |
202 | } | |
203 | apollon_smc91x_resources[0].start = base + 0x300; | |
204 | apollon_smc91x_resources[0].end = base + 0x30f; | |
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205 | udelay(100); |
206 | ||
207 | omap_cfg_reg(W4__24XX_GPIO74); | |
208 | if (omap_request_gpio(APOLLON_ETHR_GPIO_IRQ) < 0) { | |
209 | printk(KERN_ERR "Failed to request GPIO%d for smc91x IRQ\n", | |
210 | APOLLON_ETHR_GPIO_IRQ); | |
f0248408 | 211 | gpmc_cs_free(APOLLON_ETH_CS); |
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212 | return; |
213 | } | |
214 | omap_set_gpio_direction(APOLLON_ETHR_GPIO_IRQ, 1); | |
215 | } | |
216 | ||
217 | static void __init omap_apollon_init_irq(void) | |
218 | { | |
219 | omap2_init_common_hw(); | |
220 | omap_init_irq(); | |
221 | omap_gpio_init(); | |
222 | apollon_init_smc91x(); | |
223 | } | |
224 | ||
225 | static struct omap_uart_config apollon_uart_config __initdata = { | |
226 | .enabled_uarts = (1 << 0) | (0 << 1) | (0 << 2), | |
227 | }; | |
228 | ||
229 | static struct omap_mmc_config apollon_mmc_config __initdata = { | |
230 | .mmc [0] = { | |
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231 | .enabled = 1, |
232 | .wire4 = 1, | |
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233 | .wp_pin = -1, |
234 | .power_pin = -1, | |
235 | .switch_pin = -1, | |
236 | }, | |
237 | }; | |
238 | ||
f0248408 KP |
239 | static struct omap_usb_config apollon_usb_config __initdata = { |
240 | .register_dev = 1, | |
241 | .hmc_mode = 0x14, /* 0:dev 1:host1 2:disable */ | |
242 | ||
243 | .pins[0] = 6, | |
244 | }; | |
245 | ||
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246 | static struct omap_lcd_config apollon_lcd_config __initdata = { |
247 | .ctrl_name = "internal", | |
248 | }; | |
249 | ||
250 | static struct omap_board_config_kernel apollon_config[] = { | |
251 | { OMAP_TAG_UART, &apollon_uart_config }, | |
252 | { OMAP_TAG_MMC, &apollon_mmc_config }, | |
f0248408 | 253 | { OMAP_TAG_USB, &apollon_usb_config }, |
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254 | { OMAP_TAG_LCD, &apollon_lcd_config }, |
255 | }; | |
256 | ||
257 | static void __init apollon_led_init(void) | |
258 | { | |
259 | /* LED0 - AA10 */ | |
260 | omap_cfg_reg(AA10_242X_GPIO13); | |
261 | omap_request_gpio(LED0_GPIO13); | |
262 | omap_set_gpio_direction(LED0_GPIO13, 0); | |
263 | omap_set_gpio_dataout(LED0_GPIO13, 0); | |
264 | /* LED1 - AA6 */ | |
265 | omap_cfg_reg(AA6_242X_GPIO14); | |
266 | omap_request_gpio(LED1_GPIO14); | |
267 | omap_set_gpio_direction(LED1_GPIO14, 0); | |
268 | omap_set_gpio_dataout(LED1_GPIO14, 0); | |
269 | /* LED2 - AA4 */ | |
270 | omap_cfg_reg(AA4_242X_GPIO15); | |
271 | omap_request_gpio(LED2_GPIO15); | |
272 | omap_set_gpio_direction(LED2_GPIO15, 0); | |
273 | omap_set_gpio_dataout(LED2_GPIO15, 0); | |
274 | } | |
275 | ||
0cd61b68 | 276 | static irqreturn_t apollon_sw_interrupt(int irq, void *ignored) |
9b6553cd TL |
277 | { |
278 | static unsigned int led0, led1, led2; | |
279 | ||
280 | if (irq == OMAP_GPIO_IRQ(SW_ENTER_GPIO16)) | |
281 | omap_set_gpio_dataout(LED0_GPIO13, led0 ^= 1); | |
282 | else if (irq == OMAP_GPIO_IRQ(SW_UP_GPIO17)) | |
283 | omap_set_gpio_dataout(LED1_GPIO14, led1 ^= 1); | |
284 | else if (irq == OMAP_GPIO_IRQ(SW_DOWN_GPIO58)) | |
285 | omap_set_gpio_dataout(LED2_GPIO15, led2 ^= 1); | |
286 | ||
287 | return IRQ_HANDLED; | |
288 | } | |
289 | ||
290 | static void __init apollon_sw_init(void) | |
291 | { | |
292 | /* Enter SW - Y11 */ | |
293 | omap_cfg_reg(Y11_242X_GPIO16); | |
294 | omap_request_gpio(SW_ENTER_GPIO16); | |
295 | omap_set_gpio_direction(SW_ENTER_GPIO16, 1); | |
296 | /* Up SW - AA12 */ | |
297 | omap_cfg_reg(AA12_242X_GPIO17); | |
298 | omap_request_gpio(SW_UP_GPIO17); | |
299 | omap_set_gpio_direction(SW_UP_GPIO17, 1); | |
300 | /* Down SW - AA8 */ | |
301 | omap_cfg_reg(AA8_242X_GPIO58); | |
302 | omap_request_gpio(SW_DOWN_GPIO58); | |
303 | omap_set_gpio_direction(SW_DOWN_GPIO58, 1); | |
304 | ||
305 | set_irq_type(OMAP_GPIO_IRQ(SW_ENTER_GPIO16), IRQT_RISING); | |
306 | if (request_irq(OMAP_GPIO_IRQ(SW_ENTER_GPIO16), &apollon_sw_interrupt, | |
52e405ea | 307 | IRQF_SHARED, "enter sw", |
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308 | &apollon_sw_interrupt)) |
309 | return; | |
310 | set_irq_type(OMAP_GPIO_IRQ(SW_UP_GPIO17), IRQT_RISING); | |
311 | if (request_irq(OMAP_GPIO_IRQ(SW_UP_GPIO17), &apollon_sw_interrupt, | |
52e405ea | 312 | IRQF_SHARED, "up sw", |
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313 | &apollon_sw_interrupt)) |
314 | return; | |
315 | set_irq_type(OMAP_GPIO_IRQ(SW_DOWN_GPIO58), IRQT_RISING); | |
316 | if (request_irq(OMAP_GPIO_IRQ(SW_DOWN_GPIO58), &apollon_sw_interrupt, | |
52e405ea | 317 | IRQF_SHARED, "down sw", |
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318 | &apollon_sw_interrupt)) |
319 | return; | |
320 | } | |
321 | ||
f0248408 KP |
322 | static void __init apollon_usb_init(void) |
323 | { | |
324 | /* USB device */ | |
325 | /* DEVICE_SUSPEND */ | |
326 | omap_cfg_reg(P21_242X_GPIO12); | |
327 | omap_request_gpio(12); | |
328 | omap_set_gpio_direction(12, 0); /* OUT */ | |
329 | omap_set_gpio_dataout(12, 0); | |
330 | } | |
331 | ||
9b6553cd TL |
332 | static void __init omap_apollon_init(void) |
333 | { | |
334 | apollon_led_init(); | |
335 | apollon_sw_init(); | |
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336 | apollon_flash_init(); |
337 | apollon_usb_init(); | |
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338 | |
339 | /* REVISIT: where's the correct place */ | |
340 | omap_cfg_reg(W19_24XX_SYS_NIRQ); | |
341 | ||
abc45e1d KP |
342 | /* Use Interal loop-back in MMC/SDIO Module Input Clock selection */ |
343 | CONTROL_DEVCONF |= (1 << 24); | |
344 | ||
9b6553cd TL |
345 | /* |
346 | * Make sure the serial ports are muxed on at this point. | |
347 | * You have to mux them off in device drivers later on | |
348 | * if not needed. | |
349 | */ | |
350 | platform_add_devices(apollon_devices, ARRAY_SIZE(apollon_devices)); | |
351 | omap_board_config = apollon_config; | |
352 | omap_board_config_size = ARRAY_SIZE(apollon_config); | |
353 | omap_serial_init(); | |
354 | } | |
355 | ||
356 | static void __init omap_apollon_map_io(void) | |
357 | { | |
358 | omap2_map_common_io(); | |
359 | } | |
360 | ||
361 | MACHINE_START(OMAP_APOLLON, "OMAP24xx Apollon") | |
362 | /* Maintainer: Kyungmin Park <kyungmin.park@samsung.com> */ | |
363 | .phys_io = 0x48000000, | |
364 | .io_pg_offst = ((0xd8000000) >> 18) & 0xfffc, | |
365 | .boot_params = 0x80000100, | |
366 | .map_io = omap_apollon_map_io, | |
367 | .init_irq = omap_apollon_init_irq, | |
368 | .init_machine = omap_apollon_init, | |
369 | .timer = &omap_timer, | |
370 | MACHINE_END |