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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 | 28 | #include <linux/leds.h> |
44595982 PW |
29 | #include <linux/err.h> |
30 | #include <linux/clk.h> | |
9b6553cd | 31 | |
a09e64fb | 32 | #include <mach/hardware.h> |
9b6553cd TL |
33 | #include <asm/mach-types.h> |
34 | #include <asm/mach/arch.h> | |
35 | #include <asm/mach/flash.h> | |
36 | ||
a09e64fb RK |
37 | #include <mach/gpio.h> |
38 | #include <mach/led.h> | |
39 | #include <mach/mux.h> | |
40 | #include <mach/usb.h> | |
41 | #include <mach/board.h> | |
42 | #include <mach/common.h> | |
43 | #include <mach/gpmc.h> | |
44 | #include <mach/control.h> | |
9b6553cd TL |
45 | |
46 | /* LED & Switch macros */ | |
47 | #define LED0_GPIO13 13 | |
48 | #define LED1_GPIO14 14 | |
49 | #define LED2_GPIO15 15 | |
50 | #define SW_ENTER_GPIO16 16 | |
51 | #define SW_UP_GPIO17 17 | |
52 | #define SW_DOWN_GPIO58 58 | |
53 | ||
f0248408 KP |
54 | #define APOLLON_FLASH_CS 0 |
55 | #define APOLLON_ETH_CS 1 | |
56 | ||
9b6553cd TL |
57 | static struct mtd_partition apollon_partitions[] = { |
58 | { | |
59 | .name = "X-Loader + U-Boot", | |
60 | .offset = 0, | |
61 | .size = SZ_128K, | |
62 | .mask_flags = MTD_WRITEABLE, | |
63 | }, | |
64 | { | |
65 | .name = "params", | |
66 | .offset = MTDPART_OFS_APPEND, | |
67 | .size = SZ_128K, | |
68 | }, | |
69 | { | |
70 | .name = "kernel", | |
71 | .offset = MTDPART_OFS_APPEND, | |
72 | .size = SZ_2M, | |
73 | }, | |
74 | { | |
75 | .name = "rootfs", | |
76 | .offset = MTDPART_OFS_APPEND, | |
77 | .size = SZ_16M, | |
78 | }, | |
79 | { | |
80 | .name = "filesystem00", | |
81 | .offset = MTDPART_OFS_APPEND, | |
82 | .size = SZ_32M, | |
83 | }, | |
84 | { | |
85 | .name = "filesystem01", | |
86 | .offset = MTDPART_OFS_APPEND, | |
87 | .size = MTDPART_SIZ_FULL, | |
88 | }, | |
89 | }; | |
90 | ||
91 | static struct flash_platform_data apollon_flash_data = { | |
92 | .parts = apollon_partitions, | |
93 | .nr_parts = ARRAY_SIZE(apollon_partitions), | |
94 | }; | |
95 | ||
f0248408 KP |
96 | static struct resource apollon_flash_resource[] = { |
97 | [0] = { | |
98 | .flags = IORESOURCE_MEM, | |
99 | }, | |
9b6553cd TL |
100 | }; |
101 | ||
102 | static struct platform_device apollon_onenand_device = { | |
103 | .name = "onenand", | |
104 | .id = -1, | |
105 | .dev = { | |
106 | .platform_data = &apollon_flash_data, | |
107 | }, | |
f0248408 KP |
108 | .num_resources = ARRAY_SIZE(apollon_flash_resource), |
109 | .resource = apollon_flash_resource, | |
9b6553cd TL |
110 | }; |
111 | ||
f0248408 KP |
112 | static void __init apollon_flash_init(void) |
113 | { | |
114 | unsigned long base; | |
115 | ||
116 | if (gpmc_cs_request(APOLLON_FLASH_CS, SZ_128K, &base) < 0) { | |
117 | printk(KERN_ERR "Cannot request OneNAND GPMC CS\n"); | |
118 | return; | |
119 | } | |
120 | apollon_flash_resource[0].start = base; | |
121 | apollon_flash_resource[0].end = base + SZ_128K - 1; | |
122 | } | |
123 | ||
9b6553cd TL |
124 | static struct resource apollon_smc91x_resources[] = { |
125 | [0] = { | |
9b6553cd TL |
126 | .flags = IORESOURCE_MEM, |
127 | }, | |
128 | [1] = { | |
129 | .start = OMAP_GPIO_IRQ(APOLLON_ETHR_GPIO_IRQ), | |
130 | .end = OMAP_GPIO_IRQ(APOLLON_ETHR_GPIO_IRQ), | |
e7b3dc7e | 131 | .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE, |
9b6553cd TL |
132 | }, |
133 | }; | |
134 | ||
135 | static struct platform_device apollon_smc91x_device = { | |
136 | .name = "smc91x", | |
137 | .id = -1, | |
138 | .num_resources = ARRAY_SIZE(apollon_smc91x_resources), | |
139 | .resource = apollon_smc91x_resources, | |
140 | }; | |
141 | ||
142 | static struct platform_device apollon_lcd_device = { | |
143 | .name = "apollon_lcd", | |
144 | .id = -1, | |
145 | }; | |
146 | ||
f0248408 KP |
147 | static struct omap_led_config apollon_led_config[] = { |
148 | { | |
149 | .cdev = { | |
150 | .name = "apollon:led0", | |
151 | }, | |
152 | .gpio = LED0_GPIO13, | |
153 | }, | |
154 | { | |
155 | .cdev = { | |
156 | .name = "apollon:led1", | |
157 | }, | |
158 | .gpio = LED1_GPIO14, | |
159 | }, | |
160 | { | |
161 | .cdev = { | |
162 | .name = "apollon:led2", | |
163 | }, | |
164 | .gpio = LED2_GPIO15, | |
165 | }, | |
166 | }; | |
167 | ||
168 | static struct omap_led_platform_data apollon_led_data = { | |
169 | .nr_leds = ARRAY_SIZE(apollon_led_config), | |
170 | .leds = apollon_led_config, | |
171 | }; | |
172 | ||
173 | static struct platform_device apollon_led_device = { | |
174 | .name = "omap-led", | |
175 | .id = -1, | |
176 | .dev = { | |
177 | .platform_data = &apollon_led_data, | |
178 | }, | |
179 | }; | |
180 | ||
9b6553cd TL |
181 | static struct platform_device *apollon_devices[] __initdata = { |
182 | &apollon_onenand_device, | |
183 | &apollon_smc91x_device, | |
184 | &apollon_lcd_device, | |
f0248408 | 185 | &apollon_led_device, |
9b6553cd TL |
186 | }; |
187 | ||
188 | static inline void __init apollon_init_smc91x(void) | |
189 | { | |
f0248408 KP |
190 | unsigned long base; |
191 | ||
44595982 PW |
192 | unsigned int rate; |
193 | struct clk *gpmc_fck; | |
194 | int eth_cs; | |
195 | ||
196 | gpmc_fck = clk_get(NULL, "gpmc_fck"); /* Always on ENABLE_ON_INIT */ | |
197 | if (IS_ERR(gpmc_fck)) { | |
198 | WARN_ON(1); | |
199 | return; | |
200 | } | |
201 | ||
202 | clk_enable(gpmc_fck); | |
203 | rate = clk_get_rate(gpmc_fck); | |
204 | ||
205 | eth_cs = APOLLON_ETH_CS; | |
206 | ||
9b6553cd | 207 | /* Make sure CS1 timings are correct */ |
44595982 PW |
208 | gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG1, 0x00011200); |
209 | ||
210 | if (rate >= 160000000) { | |
211 | gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f01); | |
212 | gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080803); | |
213 | gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1c0b1c0a); | |
214 | gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x041f1F1F); | |
215 | gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000004C4); | |
216 | } else if (rate >= 130000000) { | |
217 | gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f00); | |
218 | gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080802); | |
219 | gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1C091C09); | |
220 | gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x041f1F1F); | |
221 | gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000004C4); | |
222 | } else {/* rate = 100000000 */ | |
223 | gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f00); | |
224 | gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080802); | |
225 | gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1C091C09); | |
226 | gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x031A1F1F); | |
227 | gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000003C2); | |
228 | } | |
f0248408 KP |
229 | |
230 | if (gpmc_cs_request(APOLLON_ETH_CS, SZ_16M, &base) < 0) { | |
231 | printk(KERN_ERR "Failed to request GPMC CS for smc91x\n"); | |
44595982 | 232 | goto out; |
f0248408 KP |
233 | } |
234 | apollon_smc91x_resources[0].start = base + 0x300; | |
235 | apollon_smc91x_resources[0].end = base + 0x30f; | |
9b6553cd TL |
236 | udelay(100); |
237 | ||
238 | omap_cfg_reg(W4__24XX_GPIO74); | |
239 | if (omap_request_gpio(APOLLON_ETHR_GPIO_IRQ) < 0) { | |
240 | printk(KERN_ERR "Failed to request GPIO%d for smc91x IRQ\n", | |
241 | APOLLON_ETHR_GPIO_IRQ); | |
f0248408 | 242 | gpmc_cs_free(APOLLON_ETH_CS); |
44595982 | 243 | goto out; |
9b6553cd TL |
244 | } |
245 | omap_set_gpio_direction(APOLLON_ETHR_GPIO_IRQ, 1); | |
44595982 PW |
246 | |
247 | out: | |
248 | clk_disable(gpmc_fck); | |
249 | clk_put(gpmc_fck); | |
9b6553cd TL |
250 | } |
251 | ||
252 | static void __init omap_apollon_init_irq(void) | |
253 | { | |
254 | omap2_init_common_hw(); | |
255 | omap_init_irq(); | |
256 | omap_gpio_init(); | |
257 | apollon_init_smc91x(); | |
258 | } | |
259 | ||
260 | static struct omap_uart_config apollon_uart_config __initdata = { | |
261 | .enabled_uarts = (1 << 0) | (0 << 1) | (0 << 2), | |
262 | }; | |
263 | ||
264 | static struct omap_mmc_config apollon_mmc_config __initdata = { | |
265 | .mmc [0] = { | |
abc45e1d KP |
266 | .enabled = 1, |
267 | .wire4 = 1, | |
9b6553cd TL |
268 | .wp_pin = -1, |
269 | .power_pin = -1, | |
270 | .switch_pin = -1, | |
271 | }, | |
272 | }; | |
273 | ||
f0248408 KP |
274 | static struct omap_usb_config apollon_usb_config __initdata = { |
275 | .register_dev = 1, | |
276 | .hmc_mode = 0x14, /* 0:dev 1:host1 2:disable */ | |
277 | ||
278 | .pins[0] = 6, | |
279 | }; | |
280 | ||
9b6553cd TL |
281 | static struct omap_lcd_config apollon_lcd_config __initdata = { |
282 | .ctrl_name = "internal", | |
283 | }; | |
284 | ||
285 | static struct omap_board_config_kernel apollon_config[] = { | |
286 | { OMAP_TAG_UART, &apollon_uart_config }, | |
287 | { OMAP_TAG_MMC, &apollon_mmc_config }, | |
f0248408 | 288 | { OMAP_TAG_USB, &apollon_usb_config }, |
9b6553cd TL |
289 | { OMAP_TAG_LCD, &apollon_lcd_config }, |
290 | }; | |
291 | ||
292 | static void __init apollon_led_init(void) | |
293 | { | |
294 | /* LED0 - AA10 */ | |
295 | omap_cfg_reg(AA10_242X_GPIO13); | |
296 | omap_request_gpio(LED0_GPIO13); | |
297 | omap_set_gpio_direction(LED0_GPIO13, 0); | |
298 | omap_set_gpio_dataout(LED0_GPIO13, 0); | |
299 | /* LED1 - AA6 */ | |
300 | omap_cfg_reg(AA6_242X_GPIO14); | |
301 | omap_request_gpio(LED1_GPIO14); | |
302 | omap_set_gpio_direction(LED1_GPIO14, 0); | |
303 | omap_set_gpio_dataout(LED1_GPIO14, 0); | |
304 | /* LED2 - AA4 */ | |
305 | omap_cfg_reg(AA4_242X_GPIO15); | |
306 | omap_request_gpio(LED2_GPIO15); | |
307 | omap_set_gpio_direction(LED2_GPIO15, 0); | |
308 | omap_set_gpio_dataout(LED2_GPIO15, 0); | |
309 | } | |
310 | ||
0cd61b68 | 311 | static irqreturn_t apollon_sw_interrupt(int irq, void *ignored) |
9b6553cd TL |
312 | { |
313 | static unsigned int led0, led1, led2; | |
314 | ||
315 | if (irq == OMAP_GPIO_IRQ(SW_ENTER_GPIO16)) | |
316 | omap_set_gpio_dataout(LED0_GPIO13, led0 ^= 1); | |
317 | else if (irq == OMAP_GPIO_IRQ(SW_UP_GPIO17)) | |
318 | omap_set_gpio_dataout(LED1_GPIO14, led1 ^= 1); | |
319 | else if (irq == OMAP_GPIO_IRQ(SW_DOWN_GPIO58)) | |
320 | omap_set_gpio_dataout(LED2_GPIO15, led2 ^= 1); | |
321 | ||
322 | return IRQ_HANDLED; | |
323 | } | |
324 | ||
325 | static void __init apollon_sw_init(void) | |
326 | { | |
327 | /* Enter SW - Y11 */ | |
328 | omap_cfg_reg(Y11_242X_GPIO16); | |
329 | omap_request_gpio(SW_ENTER_GPIO16); | |
330 | omap_set_gpio_direction(SW_ENTER_GPIO16, 1); | |
331 | /* Up SW - AA12 */ | |
332 | omap_cfg_reg(AA12_242X_GPIO17); | |
333 | omap_request_gpio(SW_UP_GPIO17); | |
334 | omap_set_gpio_direction(SW_UP_GPIO17, 1); | |
335 | /* Down SW - AA8 */ | |
336 | omap_cfg_reg(AA8_242X_GPIO58); | |
337 | omap_request_gpio(SW_DOWN_GPIO58); | |
338 | omap_set_gpio_direction(SW_DOWN_GPIO58, 1); | |
339 | ||
6cab4860 | 340 | set_irq_type(OMAP_GPIO_IRQ(SW_ENTER_GPIO16), IRQ_TYPE_EDGE_RISING); |
9b6553cd | 341 | if (request_irq(OMAP_GPIO_IRQ(SW_ENTER_GPIO16), &apollon_sw_interrupt, |
52e405ea | 342 | IRQF_SHARED, "enter sw", |
9b6553cd TL |
343 | &apollon_sw_interrupt)) |
344 | return; | |
6cab4860 | 345 | set_irq_type(OMAP_GPIO_IRQ(SW_UP_GPIO17), IRQ_TYPE_EDGE_RISING); |
9b6553cd | 346 | if (request_irq(OMAP_GPIO_IRQ(SW_UP_GPIO17), &apollon_sw_interrupt, |
52e405ea | 347 | IRQF_SHARED, "up sw", |
9b6553cd TL |
348 | &apollon_sw_interrupt)) |
349 | return; | |
6cab4860 | 350 | set_irq_type(OMAP_GPIO_IRQ(SW_DOWN_GPIO58), IRQ_TYPE_EDGE_RISING); |
9b6553cd | 351 | if (request_irq(OMAP_GPIO_IRQ(SW_DOWN_GPIO58), &apollon_sw_interrupt, |
52e405ea | 352 | IRQF_SHARED, "down sw", |
9b6553cd TL |
353 | &apollon_sw_interrupt)) |
354 | return; | |
355 | } | |
356 | ||
f0248408 KP |
357 | static void __init apollon_usb_init(void) |
358 | { | |
359 | /* USB device */ | |
360 | /* DEVICE_SUSPEND */ | |
361 | omap_cfg_reg(P21_242X_GPIO12); | |
362 | omap_request_gpio(12); | |
363 | omap_set_gpio_direction(12, 0); /* OUT */ | |
364 | omap_set_gpio_dataout(12, 0); | |
365 | } | |
366 | ||
9b6553cd TL |
367 | static void __init omap_apollon_init(void) |
368 | { | |
44595982 PW |
369 | u32 v; |
370 | ||
9b6553cd TL |
371 | apollon_led_init(); |
372 | apollon_sw_init(); | |
f0248408 KP |
373 | apollon_flash_init(); |
374 | apollon_usb_init(); | |
9b6553cd TL |
375 | |
376 | /* REVISIT: where's the correct place */ | |
377 | omap_cfg_reg(W19_24XX_SYS_NIRQ); | |
378 | ||
abc45e1d | 379 | /* Use Interal loop-back in MMC/SDIO Module Input Clock selection */ |
44595982 PW |
380 | v = omap_ctrl_readl(OMAP2_CONTROL_DEVCONF0); |
381 | v |= (1 << 24); | |
382 | omap_ctrl_writel(v, OMAP2_CONTROL_DEVCONF0); | |
abc45e1d | 383 | |
9b6553cd TL |
384 | /* |
385 | * Make sure the serial ports are muxed on at this point. | |
386 | * You have to mux them off in device drivers later on | |
387 | * if not needed. | |
388 | */ | |
389 | platform_add_devices(apollon_devices, ARRAY_SIZE(apollon_devices)); | |
390 | omap_board_config = apollon_config; | |
391 | omap_board_config_size = ARRAY_SIZE(apollon_config); | |
392 | omap_serial_init(); | |
393 | } | |
394 | ||
395 | static void __init omap_apollon_map_io(void) | |
396 | { | |
c8d2eb8e | 397 | omap2_set_globals_242x(); |
9b6553cd TL |
398 | omap2_map_common_io(); |
399 | } | |
400 | ||
401 | MACHINE_START(OMAP_APOLLON, "OMAP24xx Apollon") | |
402 | /* Maintainer: Kyungmin Park <kyungmin.park@samsung.com> */ | |
403 | .phys_io = 0x48000000, | |
404 | .io_pg_offst = ((0xd8000000) >> 18) & 0xfffc, | |
405 | .boot_params = 0x80000100, | |
406 | .map_io = omap_apollon_map_io, | |
407 | .init_irq = omap_apollon_init_irq, | |
408 | .init_machine = omap_apollon_init, | |
409 | .timer = &omap_timer, | |
410 | MACHINE_END |