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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> | |
9b6553cd | 25 | #include <linux/delay.h> |
f0248408 | 26 | #include <linux/leds.h> |
44595982 PW |
27 | #include <linux/err.h> |
28 | #include <linux/clk.h> | |
9b6553cd | 29 | |
a09e64fb | 30 | #include <mach/hardware.h> |
9b6553cd TL |
31 | #include <asm/mach-types.h> |
32 | #include <asm/mach/arch.h> | |
33 | #include <asm/mach/flash.h> | |
34 | ||
a09e64fb RK |
35 | #include <mach/gpio.h> |
36 | #include <mach/led.h> | |
37 | #include <mach/mux.h> | |
38 | #include <mach/usb.h> | |
39 | #include <mach/board.h> | |
40 | #include <mach/common.h> | |
41 | #include <mach/gpmc.h> | |
42 | #include <mach/control.h> | |
9b6553cd TL |
43 | |
44 | /* LED & Switch macros */ | |
45 | #define LED0_GPIO13 13 | |
46 | #define LED1_GPIO14 14 | |
47 | #define LED2_GPIO15 15 | |
48 | #define SW_ENTER_GPIO16 16 | |
49 | #define SW_UP_GPIO17 17 | |
50 | #define SW_DOWN_GPIO58 58 | |
51 | ||
f0248408 KP |
52 | #define APOLLON_FLASH_CS 0 |
53 | #define APOLLON_ETH_CS 1 | |
54 | ||
9b6553cd TL |
55 | static struct mtd_partition apollon_partitions[] = { |
56 | { | |
57 | .name = "X-Loader + U-Boot", | |
58 | .offset = 0, | |
59 | .size = SZ_128K, | |
60 | .mask_flags = MTD_WRITEABLE, | |
61 | }, | |
62 | { | |
63 | .name = "params", | |
64 | .offset = MTDPART_OFS_APPEND, | |
65 | .size = SZ_128K, | |
66 | }, | |
67 | { | |
68 | .name = "kernel", | |
69 | .offset = MTDPART_OFS_APPEND, | |
70 | .size = SZ_2M, | |
71 | }, | |
72 | { | |
73 | .name = "rootfs", | |
74 | .offset = MTDPART_OFS_APPEND, | |
75 | .size = SZ_16M, | |
76 | }, | |
77 | { | |
78 | .name = "filesystem00", | |
79 | .offset = MTDPART_OFS_APPEND, | |
80 | .size = SZ_32M, | |
81 | }, | |
82 | { | |
83 | .name = "filesystem01", | |
84 | .offset = MTDPART_OFS_APPEND, | |
85 | .size = MTDPART_SIZ_FULL, | |
86 | }, | |
87 | }; | |
88 | ||
89 | static struct flash_platform_data apollon_flash_data = { | |
90 | .parts = apollon_partitions, | |
91 | .nr_parts = ARRAY_SIZE(apollon_partitions), | |
92 | }; | |
93 | ||
f0248408 KP |
94 | static struct resource apollon_flash_resource[] = { |
95 | [0] = { | |
96 | .flags = IORESOURCE_MEM, | |
97 | }, | |
9b6553cd TL |
98 | }; |
99 | ||
100 | static struct platform_device apollon_onenand_device = { | |
101 | .name = "onenand", | |
102 | .id = -1, | |
103 | .dev = { | |
104 | .platform_data = &apollon_flash_data, | |
105 | }, | |
f0248408 KP |
106 | .num_resources = ARRAY_SIZE(apollon_flash_resource), |
107 | .resource = apollon_flash_resource, | |
9b6553cd TL |
108 | }; |
109 | ||
f0248408 KP |
110 | static void __init apollon_flash_init(void) |
111 | { | |
112 | unsigned long base; | |
113 | ||
114 | if (gpmc_cs_request(APOLLON_FLASH_CS, SZ_128K, &base) < 0) { | |
115 | printk(KERN_ERR "Cannot request OneNAND GPMC CS\n"); | |
116 | return; | |
117 | } | |
118 | apollon_flash_resource[0].start = base; | |
119 | apollon_flash_resource[0].end = base + SZ_128K - 1; | |
120 | } | |
121 | ||
9b6553cd TL |
122 | static struct resource apollon_smc91x_resources[] = { |
123 | [0] = { | |
9b6553cd TL |
124 | .flags = IORESOURCE_MEM, |
125 | }, | |
126 | [1] = { | |
127 | .start = OMAP_GPIO_IRQ(APOLLON_ETHR_GPIO_IRQ), | |
128 | .end = OMAP_GPIO_IRQ(APOLLON_ETHR_GPIO_IRQ), | |
e7b3dc7e | 129 | .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE, |
9b6553cd TL |
130 | }, |
131 | }; | |
132 | ||
133 | static struct platform_device apollon_smc91x_device = { | |
134 | .name = "smc91x", | |
135 | .id = -1, | |
136 | .num_resources = ARRAY_SIZE(apollon_smc91x_resources), | |
137 | .resource = apollon_smc91x_resources, | |
138 | }; | |
139 | ||
140 | static struct platform_device apollon_lcd_device = { | |
141 | .name = "apollon_lcd", | |
142 | .id = -1, | |
143 | }; | |
144 | ||
f0248408 KP |
145 | static struct omap_led_config apollon_led_config[] = { |
146 | { | |
147 | .cdev = { | |
148 | .name = "apollon:led0", | |
149 | }, | |
150 | .gpio = LED0_GPIO13, | |
151 | }, | |
152 | { | |
153 | .cdev = { | |
154 | .name = "apollon:led1", | |
155 | }, | |
156 | .gpio = LED1_GPIO14, | |
157 | }, | |
158 | { | |
159 | .cdev = { | |
160 | .name = "apollon:led2", | |
161 | }, | |
162 | .gpio = LED2_GPIO15, | |
163 | }, | |
164 | }; | |
165 | ||
166 | static struct omap_led_platform_data apollon_led_data = { | |
167 | .nr_leds = ARRAY_SIZE(apollon_led_config), | |
168 | .leds = apollon_led_config, | |
169 | }; | |
170 | ||
171 | static struct platform_device apollon_led_device = { | |
172 | .name = "omap-led", | |
173 | .id = -1, | |
174 | .dev = { | |
175 | .platform_data = &apollon_led_data, | |
176 | }, | |
177 | }; | |
178 | ||
9b6553cd TL |
179 | static struct platform_device *apollon_devices[] __initdata = { |
180 | &apollon_onenand_device, | |
181 | &apollon_smc91x_device, | |
182 | &apollon_lcd_device, | |
f0248408 | 183 | &apollon_led_device, |
9b6553cd TL |
184 | }; |
185 | ||
186 | static inline void __init apollon_init_smc91x(void) | |
187 | { | |
f0248408 KP |
188 | unsigned long base; |
189 | ||
44595982 PW |
190 | unsigned int rate; |
191 | struct clk *gpmc_fck; | |
192 | int eth_cs; | |
193 | ||
194 | gpmc_fck = clk_get(NULL, "gpmc_fck"); /* Always on ENABLE_ON_INIT */ | |
195 | if (IS_ERR(gpmc_fck)) { | |
196 | WARN_ON(1); | |
197 | return; | |
198 | } | |
199 | ||
200 | clk_enable(gpmc_fck); | |
201 | rate = clk_get_rate(gpmc_fck); | |
202 | ||
203 | eth_cs = APOLLON_ETH_CS; | |
204 | ||
9b6553cd | 205 | /* Make sure CS1 timings are correct */ |
44595982 PW |
206 | gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG1, 0x00011200); |
207 | ||
208 | if (rate >= 160000000) { | |
209 | gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f01); | |
210 | gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080803); | |
211 | gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1c0b1c0a); | |
212 | gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x041f1F1F); | |
213 | gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000004C4); | |
214 | } else if (rate >= 130000000) { | |
215 | gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f00); | |
216 | gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080802); | |
217 | gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1C091C09); | |
218 | gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x041f1F1F); | |
219 | gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000004C4); | |
220 | } else {/* rate = 100000000 */ | |
221 | gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f00); | |
222 | gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080802); | |
223 | gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1C091C09); | |
224 | gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x031A1F1F); | |
225 | gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000003C2); | |
226 | } | |
f0248408 KP |
227 | |
228 | if (gpmc_cs_request(APOLLON_ETH_CS, SZ_16M, &base) < 0) { | |
229 | printk(KERN_ERR "Failed to request GPMC CS for smc91x\n"); | |
44595982 | 230 | goto out; |
f0248408 KP |
231 | } |
232 | apollon_smc91x_resources[0].start = base + 0x300; | |
233 | apollon_smc91x_resources[0].end = base + 0x30f; | |
9b6553cd TL |
234 | udelay(100); |
235 | ||
236 | omap_cfg_reg(W4__24XX_GPIO74); | |
f2d18fea | 237 | if (gpio_request(APOLLON_ETHR_GPIO_IRQ, "SMC91x irq") < 0) { |
9b6553cd TL |
238 | printk(KERN_ERR "Failed to request GPIO%d for smc91x IRQ\n", |
239 | APOLLON_ETHR_GPIO_IRQ); | |
f0248408 | 240 | gpmc_cs_free(APOLLON_ETH_CS); |
44595982 | 241 | goto out; |
9b6553cd | 242 | } |
40e3925b | 243 | gpio_direction_input(APOLLON_ETHR_GPIO_IRQ); |
44595982 PW |
244 | |
245 | out: | |
246 | clk_disable(gpmc_fck); | |
247 | clk_put(gpmc_fck); | |
9b6553cd TL |
248 | } |
249 | ||
250 | static void __init omap_apollon_init_irq(void) | |
251 | { | |
252 | omap2_init_common_hw(); | |
253 | omap_init_irq(); | |
254 | omap_gpio_init(); | |
255 | apollon_init_smc91x(); | |
256 | } | |
257 | ||
258 | static struct omap_uart_config apollon_uart_config __initdata = { | |
259 | .enabled_uarts = (1 << 0) | (0 << 1) | (0 << 2), | |
260 | }; | |
261 | ||
f0248408 KP |
262 | static struct omap_usb_config apollon_usb_config __initdata = { |
263 | .register_dev = 1, | |
264 | .hmc_mode = 0x14, /* 0:dev 1:host1 2:disable */ | |
265 | ||
266 | .pins[0] = 6, | |
267 | }; | |
268 | ||
9b6553cd TL |
269 | static struct omap_lcd_config apollon_lcd_config __initdata = { |
270 | .ctrl_name = "internal", | |
271 | }; | |
272 | ||
273 | static struct omap_board_config_kernel apollon_config[] = { | |
274 | { OMAP_TAG_UART, &apollon_uart_config }, | |
f0248408 | 275 | { OMAP_TAG_USB, &apollon_usb_config }, |
9b6553cd TL |
276 | { OMAP_TAG_LCD, &apollon_lcd_config }, |
277 | }; | |
278 | ||
279 | static void __init apollon_led_init(void) | |
280 | { | |
281 | /* LED0 - AA10 */ | |
282 | omap_cfg_reg(AA10_242X_GPIO13); | |
73069e38 JN |
283 | gpio_request(LED0_GPIO13, "LED0"); |
284 | gpio_direction_output(LED0_GPIO13, 0); | |
9b6553cd TL |
285 | /* LED1 - AA6 */ |
286 | omap_cfg_reg(AA6_242X_GPIO14); | |
73069e38 JN |
287 | gpio_request(LED1_GPIO14, "LED1"); |
288 | gpio_direction_output(LED1_GPIO14, 0); | |
9b6553cd TL |
289 | /* LED2 - AA4 */ |
290 | omap_cfg_reg(AA4_242X_GPIO15); | |
73069e38 JN |
291 | gpio_request(LED2_GPIO15, "LED2"); |
292 | gpio_direction_output(LED2_GPIO15, 0); | |
9b6553cd TL |
293 | } |
294 | ||
f0248408 KP |
295 | static void __init apollon_usb_init(void) |
296 | { | |
297 | /* USB device */ | |
298 | /* DEVICE_SUSPEND */ | |
299 | omap_cfg_reg(P21_242X_GPIO12); | |
f2d18fea | 300 | gpio_request(12, "USB suspend"); |
e918edf7 | 301 | gpio_direction_output(12, 0); |
f0248408 KP |
302 | } |
303 | ||
9b6553cd TL |
304 | static void __init omap_apollon_init(void) |
305 | { | |
44595982 PW |
306 | u32 v; |
307 | ||
9b6553cd | 308 | apollon_led_init(); |
f0248408 KP |
309 | apollon_flash_init(); |
310 | apollon_usb_init(); | |
9b6553cd TL |
311 | |
312 | /* REVISIT: where's the correct place */ | |
313 | omap_cfg_reg(W19_24XX_SYS_NIRQ); | |
314 | ||
abc45e1d | 315 | /* Use Interal loop-back in MMC/SDIO Module Input Clock selection */ |
44595982 PW |
316 | v = omap_ctrl_readl(OMAP2_CONTROL_DEVCONF0); |
317 | v |= (1 << 24); | |
318 | omap_ctrl_writel(v, OMAP2_CONTROL_DEVCONF0); | |
abc45e1d | 319 | |
9b6553cd TL |
320 | /* |
321 | * Make sure the serial ports are muxed on at this point. | |
322 | * You have to mux them off in device drivers later on | |
323 | * if not needed. | |
324 | */ | |
325 | platform_add_devices(apollon_devices, ARRAY_SIZE(apollon_devices)); | |
326 | omap_board_config = apollon_config; | |
327 | omap_board_config_size = ARRAY_SIZE(apollon_config); | |
328 | omap_serial_init(); | |
329 | } | |
330 | ||
331 | static void __init omap_apollon_map_io(void) | |
332 | { | |
c8d2eb8e | 333 | omap2_set_globals_242x(); |
9b6553cd TL |
334 | omap2_map_common_io(); |
335 | } | |
336 | ||
337 | MACHINE_START(OMAP_APOLLON, "OMAP24xx Apollon") | |
338 | /* Maintainer: Kyungmin Park <kyungmin.park@samsung.com> */ | |
339 | .phys_io = 0x48000000, | |
340 | .io_pg_offst = ((0xd8000000) >> 18) & 0xfffc, | |
341 | .boot_params = 0x80000100, | |
342 | .map_io = omap_apollon_map_io, | |
343 | .init_irq = omap_apollon_init_irq, | |
344 | .init_machine = omap_apollon_init, | |
345 | .timer = &omap_timer, | |
346 | MACHINE_END |