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1 | /* |
2 | * linux/arch/arm/mach-omap2/board-apollon.c |
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> |
25 | #include <linux/delay.h> |
26 | #include <linux/leds.h> |
27 | #include <linux/err.h> |
28 | #include <linux/clk.h> |
29 | #include <linux/smc91x.h> |
30 | |
31 | #include <mach/hardware.h> |
32 | #include <asm/mach-types.h> |
33 | #include <asm/mach/arch.h> |
34 | #include <asm/mach/flash.h> |
35 | |
36 | #include <mach/gpio.h> |
37 | #include <plat/led.h> |
38 | #include <plat/usb.h> |
39 | #include <plat/board.h> |
40 | #include <plat/common.h> |
41 | #include <plat/gpmc.h> |
42 | |
43 | #include "mux.h" |
44 | #include "control.h" |
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 | |
54 | #define APOLLON_FLASH_CS 0 |
55 | #define APOLLON_ETH_CS 1 |
56 | #define APOLLON_ETHR_GPIO_IRQ 74 |
57 | |
58 | static struct mtd_partition apollon_partitions[] = { |
59 | { |
60 | .name = "X-Loader + U-Boot", |
61 | .offset = 0, |
62 | .size = SZ_128K, |
63 | .mask_flags = MTD_WRITEABLE, |
64 | }, |
65 | { |
66 | .name = "params", |
67 | .offset = MTDPART_OFS_APPEND, |
68 | .size = SZ_128K, |
69 | }, |
70 | { |
71 | .name = "kernel", |
72 | .offset = MTDPART_OFS_APPEND, |
73 | .size = SZ_2M, |
74 | }, |
75 | { |
76 | .name = "rootfs", |
77 | .offset = MTDPART_OFS_APPEND, |
78 | .size = SZ_16M, |
79 | }, |
80 | { |
81 | .name = "filesystem00", |
82 | .offset = MTDPART_OFS_APPEND, |
83 | .size = SZ_32M, |
84 | }, |
85 | { |
86 | .name = "filesystem01", |
87 | .offset = MTDPART_OFS_APPEND, |
88 | .size = MTDPART_SIZ_FULL, |
89 | }, |
90 | }; |
91 | |
92 | static struct onenand_platform_data apollon_flash_data = { |
93 | .parts = apollon_partitions, |
94 | .nr_parts = ARRAY_SIZE(apollon_partitions), |
95 | }; |
96 | |
97 | static struct resource apollon_flash_resource[] = { |
98 | [0] = { |
99 | .flags = IORESOURCE_MEM, |
100 | }, |
101 | }; |
102 | |
103 | static struct platform_device apollon_onenand_device = { |
104 | .name = "onenand-flash", |
105 | .id = -1, |
106 | .dev = { |
107 | .platform_data = &apollon_flash_data, |
108 | }, |
109 | .num_resources = ARRAY_SIZE(apollon_flash_resource), |
110 | .resource = apollon_flash_resource, |
111 | }; |
112 | |
113 | static void __init apollon_flash_init(void) |
114 | { |
115 | unsigned long base; |
116 | |
117 | if (gpmc_cs_request(APOLLON_FLASH_CS, SZ_128K, &base) < 0) { |
118 | printk(KERN_ERR "Cannot request OneNAND GPMC CS\n"); |
119 | return; |
120 | } |
121 | apollon_flash_resource[0].start = base; |
122 | apollon_flash_resource[0].end = base + SZ_128K - 1; |
123 | } |
124 | |
125 | static struct smc91x_platdata appolon_smc91x_info = { |
126 | .flags = SMC91X_USE_16BIT | SMC91X_NOWAIT, |
127 | .leda = RPC_LED_100_10, |
128 | .ledb = RPC_LED_TX_RX, |
129 | }; |
130 | |
131 | static struct resource apollon_smc91x_resources[] = { |
132 | [0] = { |
133 | .flags = IORESOURCE_MEM, |
134 | }, |
135 | [1] = { |
136 | .start = OMAP_GPIO_IRQ(APOLLON_ETHR_GPIO_IRQ), |
137 | .end = OMAP_GPIO_IRQ(APOLLON_ETHR_GPIO_IRQ), |
138 | .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE, |
139 | }, |
140 | }; |
141 | |
142 | static struct platform_device apollon_smc91x_device = { |
143 | .name = "smc91x", |
144 | .id = -1, |
145 | .dev = { |
146 | .platform_data = &appolon_smc91x_info, |
147 | }, |
148 | .num_resources = ARRAY_SIZE(apollon_smc91x_resources), |
149 | .resource = apollon_smc91x_resources, |
150 | }; |
151 | |
152 | static struct platform_device apollon_lcd_device = { |
153 | .name = "apollon_lcd", |
154 | .id = -1, |
155 | }; |
156 | |
157 | static struct omap_led_config apollon_led_config[] = { |
158 | { |
159 | .cdev = { |
160 | .name = "apollon:led0", |
161 | }, |
162 | .gpio = LED0_GPIO13, |
163 | }, |
164 | { |
165 | .cdev = { |
166 | .name = "apollon:led1", |
167 | }, |
168 | .gpio = LED1_GPIO14, |
169 | }, |
170 | { |
171 | .cdev = { |
172 | .name = "apollon:led2", |
173 | }, |
174 | .gpio = LED2_GPIO15, |
175 | }, |
176 | }; |
177 | |
178 | static struct omap_led_platform_data apollon_led_data = { |
179 | .nr_leds = ARRAY_SIZE(apollon_led_config), |
180 | .leds = apollon_led_config, |
181 | }; |
182 | |
183 | static struct platform_device apollon_led_device = { |
184 | .name = "omap-led", |
185 | .id = -1, |
186 | .dev = { |
187 | .platform_data = &apollon_led_data, |
188 | }, |
189 | }; |
190 | |
191 | static struct platform_device *apollon_devices[] __initdata = { |
192 | &apollon_onenand_device, |
193 | &apollon_smc91x_device, |
194 | &apollon_lcd_device, |
195 | &apollon_led_device, |
196 | }; |
197 | |
198 | static inline void __init apollon_init_smc91x(void) |
199 | { |
200 | unsigned long base; |
201 | |
202 | unsigned int rate; |
203 | struct clk *gpmc_fck; |
204 | int eth_cs; |
205 | |
206 | gpmc_fck = clk_get(NULL, "gpmc_fck"); /* Always on ENABLE_ON_INIT */ |
207 | if (IS_ERR(gpmc_fck)) { |
208 | WARN_ON(1); |
209 | return; |
210 | } |
211 | |
212 | clk_enable(gpmc_fck); |
213 | rate = clk_get_rate(gpmc_fck); |
214 | |
215 | eth_cs = APOLLON_ETH_CS; |
216 | |
217 | /* Make sure CS1 timings are correct */ |
218 | gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG1, 0x00011200); |
219 | |
220 | if (rate >= 160000000) { |
221 | gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f01); |
222 | gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080803); |
223 | gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1c0b1c0a); |
224 | gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x041f1F1F); |
225 | gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000004C4); |
226 | } else if (rate >= 130000000) { |
227 | gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f00); |
228 | gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080802); |
229 | gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1C091C09); |
230 | gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x041f1F1F); |
231 | gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000004C4); |
232 | } else {/* rate = 100000000 */ |
233 | gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f00); |
234 | gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080802); |
235 | gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1C091C09); |
236 | gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x031A1F1F); |
237 | gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000003C2); |
238 | } |
239 | |
240 | if (gpmc_cs_request(APOLLON_ETH_CS, SZ_16M, &base) < 0) { |
241 | printk(KERN_ERR "Failed to request GPMC CS for smc91x\n"); |
242 | goto out; |
243 | } |
244 | apollon_smc91x_resources[0].start = base + 0x300; |
245 | apollon_smc91x_resources[0].end = base + 0x30f; |
246 | udelay(100); |
247 | |
248 | omap_mux_init_gpio(74, 0); |
249 | if (gpio_request(APOLLON_ETHR_GPIO_IRQ, "SMC91x irq") < 0) { |
250 | printk(KERN_ERR "Failed to request GPIO%d for smc91x IRQ\n", |
251 | APOLLON_ETHR_GPIO_IRQ); |
252 | gpmc_cs_free(APOLLON_ETH_CS); |
253 | goto out; |
254 | } |
255 | gpio_direction_input(APOLLON_ETHR_GPIO_IRQ); |
256 | |
257 | out: |
258 | clk_disable(gpmc_fck); |
259 | clk_put(gpmc_fck); |
260 | } |
261 | |
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 | |
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_LCD, &apollon_lcd_config }, |
275 | }; |
276 | |
277 | static void __init omap_apollon_init_irq(void) |
278 | { |
279 | omap_board_config = apollon_config; |
280 | omap_board_config_size = ARRAY_SIZE(apollon_config); |
281 | omap2_init_common_hw(NULL, NULL); |
282 | omap_init_irq(); |
283 | omap_gpio_init(); |
284 | apollon_init_smc91x(); |
285 | } |
286 | |
287 | static void __init apollon_led_init(void) |
288 | { |
289 | /* LED0 - AA10 */ |
290 | omap_mux_init_signal("vlynq_clk.gpio_13", 0); |
291 | gpio_request(LED0_GPIO13, "LED0"); |
292 | gpio_direction_output(LED0_GPIO13, 0); |
293 | /* LED1 - AA6 */ |
294 | omap_mux_init_signal("vlynq_rx1.gpio_14", 0); |
295 | gpio_request(LED1_GPIO14, "LED1"); |
296 | gpio_direction_output(LED1_GPIO14, 0); |
297 | /* LED2 - AA4 */ |
298 | omap_mux_init_signal("vlynq_rx0.gpio_15", 0); |
299 | gpio_request(LED2_GPIO15, "LED2"); |
300 | gpio_direction_output(LED2_GPIO15, 0); |
301 | } |
302 | |
303 | static void __init apollon_usb_init(void) |
304 | { |
305 | /* USB device */ |
306 | /* DEVICE_SUSPEND */ |
307 | omap_mux_init_signal("mcbsp2_clkx.gpio_12", 0); |
308 | gpio_request(12, "USB suspend"); |
309 | gpio_direction_output(12, 0); |
310 | omap2_usbfs_init(&apollon_usb_config); |
311 | } |
312 | |
313 | #ifdef CONFIG_OMAP_MUX |
314 | static struct omap_board_mux board_mux[] __initdata = { |
315 | { .reg_offset = OMAP_MUX_TERMINATOR }, |
316 | }; |
317 | #else |
318 | #define board_mux NULL |
319 | #endif |
320 | |
321 | static void __init omap_apollon_init(void) |
322 | { |
323 | u32 v; |
324 | |
325 | omap2420_mux_init(board_mux, OMAP_PACKAGE_ZAC); |
326 | |
327 | apollon_led_init(); |
328 | apollon_flash_init(); |
329 | apollon_usb_init(); |
330 | |
331 | /* REVISIT: where's the correct place */ |
332 | omap_mux_init_signal("sys_nirq", OMAP_PULL_ENA | OMAP_PULL_UP); |
333 | |
334 | /* LCD PWR_EN */ |
335 | omap_mux_init_signal("mcbsp2_dr.gpio_11", OMAP_PULL_ENA | OMAP_PULL_UP); |
336 | |
337 | /* Use Interal loop-back in MMC/SDIO Module Input Clock selection */ |
338 | v = omap_ctrl_readl(OMAP2_CONTROL_DEVCONF0); |
339 | v |= (1 << 24); |
340 | omap_ctrl_writel(v, OMAP2_CONTROL_DEVCONF0); |
341 | |
342 | /* |
343 | * Make sure the serial ports are muxed on at this point. |
344 | * You have to mux them off in device drivers later on |
345 | * if not needed. |
346 | */ |
347 | platform_add_devices(apollon_devices, ARRAY_SIZE(apollon_devices)); |
348 | omap_serial_init(); |
349 | } |
350 | |
351 | static void __init omap_apollon_map_io(void) |
352 | { |
353 | omap2_set_globals_242x(); |
354 | omap242x_map_common_io(); |
355 | } |
356 | |
357 | MACHINE_START(OMAP_APOLLON, "OMAP24xx Apollon") |
358 | /* Maintainer: Kyungmin Park <kyungmin.park@samsung.com> */ |
359 | .boot_params = 0x80000100, |
360 | .map_io = omap_apollon_map_io, |
361 | .reserve = omap_reserve, |
362 | .init_irq = omap_apollon_init_irq, |
363 | .init_machine = omap_apollon_init, |
364 | .timer = &omap_timer, |
365 | MACHINE_END |
366 |
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