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2885f000 SMK |
1 | /* |
2 | * linux/arch/arm/mach-omap2/board-omap3beagle.c | |
3 | * | |
4 | * Copyright (C) 2008 Texas Instruments | |
5 | * | |
6 | * Modified from mach-omap2/board-3430sdp.c | |
7 | * | |
8 | * Initial code: Syed Mohammed Khasim | |
9 | * | |
10 | * This program is free software; you can redistribute it and/or modify | |
11 | * it under the terms of the GNU General Public License version 2 as | |
12 | * published by the Free Software Foundation. | |
13 | */ | |
14 | ||
15 | #include <linux/kernel.h> | |
16 | #include <linux/init.h> | |
17 | #include <linux/platform_device.h> | |
18 | #include <linux/delay.h> | |
19 | #include <linux/err.h> | |
20 | #include <linux/clk.h> | |
21 | #include <linux/io.h> | |
22 | #include <linux/leds.h> | |
23 | #include <linux/gpio.h> | |
24 | #include <linux/input.h> | |
25 | #include <linux/gpio_keys.h> | |
26 | ||
27 | #include <linux/mtd/mtd.h> | |
28 | #include <linux/mtd/partitions.h> | |
29 | #include <linux/mtd/nand.h> | |
30 | ||
145d9c94 TL |
31 | #include <linux/i2c/twl4030.h> |
32 | ||
2885f000 SMK |
33 | #include <mach/hardware.h> |
34 | #include <asm/mach-types.h> | |
35 | #include <asm/mach/arch.h> | |
36 | #include <asm/mach/map.h> | |
37 | #include <asm/mach/flash.h> | |
38 | ||
39 | #include <mach/board.h> | |
40 | #include <mach/common.h> | |
41 | #include <mach/gpmc.h> | |
42 | #include <mach/nand.h> | |
90c62bf0 | 43 | #include <mach/mux.h> |
18cb7aca | 44 | #include <mach/usb.h> |
f248076c | 45 | #include <mach/timer-gp.h> |
2885f000 | 46 | |
90c62bf0 | 47 | #include "mmc-twl4030.h" |
2885f000 SMK |
48 | |
49 | #define GPMC_CS0_BASE 0x60 | |
50 | #define GPMC_CS_SIZE 0x30 | |
51 | ||
52 | #define NAND_BLOCK_SIZE SZ_128K | |
53 | ||
54 | static struct mtd_partition omap3beagle_nand_partitions[] = { | |
55 | /* All the partition sizes are listed in terms of NAND block size */ | |
56 | { | |
57 | .name = "X-Loader", | |
58 | .offset = 0, | |
59 | .size = 4 * NAND_BLOCK_SIZE, | |
60 | .mask_flags = MTD_WRITEABLE, /* force read-only */ | |
61 | }, | |
62 | { | |
63 | .name = "U-Boot", | |
64 | .offset = MTDPART_OFS_APPEND, /* Offset = 0x80000 */ | |
65 | .size = 15 * NAND_BLOCK_SIZE, | |
66 | .mask_flags = MTD_WRITEABLE, /* force read-only */ | |
67 | }, | |
68 | { | |
69 | .name = "U-Boot Env", | |
70 | .offset = MTDPART_OFS_APPEND, /* Offset = 0x260000 */ | |
71 | .size = 1 * NAND_BLOCK_SIZE, | |
72 | }, | |
73 | { | |
74 | .name = "Kernel", | |
75 | .offset = MTDPART_OFS_APPEND, /* Offset = 0x280000 */ | |
76 | .size = 32 * NAND_BLOCK_SIZE, | |
77 | }, | |
78 | { | |
79 | .name = "File System", | |
80 | .offset = MTDPART_OFS_APPEND, /* Offset = 0x680000 */ | |
81 | .size = MTDPART_SIZ_FULL, | |
82 | }, | |
83 | }; | |
84 | ||
85 | static struct omap_nand_platform_data omap3beagle_nand_data = { | |
86 | .options = NAND_BUSWIDTH_16, | |
87 | .parts = omap3beagle_nand_partitions, | |
88 | .nr_parts = ARRAY_SIZE(omap3beagle_nand_partitions), | |
89 | .dma_channel = -1, /* disable DMA in OMAP NAND driver */ | |
90 | .nand_setup = NULL, | |
91 | .dev_ready = NULL, | |
92 | }; | |
93 | ||
94 | static struct resource omap3beagle_nand_resource = { | |
95 | .flags = IORESOURCE_MEM, | |
96 | }; | |
97 | ||
98 | static struct platform_device omap3beagle_nand_device = { | |
99 | .name = "omap2-nand", | |
100 | .id = -1, | |
101 | .dev = { | |
102 | .platform_data = &omap3beagle_nand_data, | |
103 | }, | |
104 | .num_resources = 1, | |
105 | .resource = &omap3beagle_nand_resource, | |
106 | }; | |
107 | ||
108 | static struct omap_uart_config omap3_beagle_uart_config __initdata = { | |
109 | .enabled_uarts = ((1 << 0) | (1 << 1) | (1 << 2)), | |
110 | }; | |
111 | ||
90c62bf0 TL |
112 | static struct twl4030_hsmmc_info mmc[] = { |
113 | { | |
114 | .mmc = 1, | |
115 | .wires = 8, | |
116 | .gpio_wp = 29, | |
117 | }, | |
118 | {} /* Terminator */ | |
119 | }; | |
120 | ||
121 | static struct gpio_led gpio_leds[]; | |
122 | ||
123 | static int beagle_twl_gpio_setup(struct device *dev, | |
124 | unsigned gpio, unsigned ngpio) | |
125 | { | |
126 | /* gpio + 0 is "mmc0_cd" (input/IRQ) */ | |
145d9c94 TL |
127 | omap_cfg_reg(AH8_34XX_GPIO29); |
128 | mmc[0].gpio_cd = gpio + 0; | |
129 | twl4030_mmc_init(mmc); | |
90c62bf0 TL |
130 | |
131 | /* REVISIT: need ehci-omap hooks for external VBUS | |
132 | * power switch and overcurrent detect | |
133 | */ | |
134 | ||
135 | gpio_request(gpio + 1, "EHCI_nOC"); | |
136 | gpio_direction_input(gpio + 1); | |
137 | ||
138 | /* TWL4030_GPIO_MAX + 0 == ledA, EHCI nEN_USB_PWR (out, active low) */ | |
139 | gpio_request(gpio + TWL4030_GPIO_MAX, "nEN_USB_PWR"); | |
140 | gpio_direction_output(gpio + TWL4030_GPIO_MAX, 1); | |
141 | ||
142 | /* TWL4030_GPIO_MAX + 1 == ledB, PMU_STAT (out, active low LED) */ | |
143 | gpio_leds[2].gpio = gpio + TWL4030_GPIO_MAX + 1; | |
144 | ||
145 | return 0; | |
146 | } | |
147 | ||
148 | static struct twl4030_gpio_platform_data beagle_gpio_data = { | |
149 | .gpio_base = OMAP_MAX_GPIO_LINES, | |
150 | .irq_base = TWL4030_GPIO_IRQ_BASE, | |
151 | .irq_end = TWL4030_GPIO_IRQ_END, | |
152 | .use_leds = true, | |
153 | .pullups = BIT(1), | |
154 | .pulldowns = BIT(2) | BIT(6) | BIT(7) | BIT(8) | BIT(13) | |
155 | | BIT(15) | BIT(16) | BIT(17), | |
156 | .setup = beagle_twl_gpio_setup, | |
157 | }; | |
158 | ||
159 | static struct twl4030_platform_data beagle_twldata = { | |
160 | .irq_base = TWL4030_IRQ_BASE, | |
161 | .irq_end = TWL4030_IRQ_END, | |
162 | ||
163 | /* platform_data for children goes here */ | |
164 | .gpio = &beagle_gpio_data, | |
165 | }; | |
166 | ||
167 | static struct i2c_board_info __initdata beagle_i2c_boardinfo[] = { | |
168 | { | |
169 | I2C_BOARD_INFO("twl4030", 0x48), | |
170 | .flags = I2C_CLIENT_WAKE, | |
171 | .irq = INT_34XX_SYS_NIRQ, | |
172 | .platform_data = &beagle_twldata, | |
173 | }, | |
174 | }; | |
175 | ||
176 | static int __init omap3_beagle_i2c_init(void) | |
177 | { | |
178 | omap_register_i2c_bus(1, 2600, beagle_i2c_boardinfo, | |
179 | ARRAY_SIZE(beagle_i2c_boardinfo)); | |
8ca7fe26 KK |
180 | /* Bus 3 is attached to the DVI port where devices like the pico DLP |
181 | * projector don't work reliably with 400kHz */ | |
182 | omap_register_i2c_bus(3, 100, NULL, 0); | |
90c62bf0 TL |
183 | return 0; |
184 | } | |
185 | ||
2885f000 SMK |
186 | static void __init omap3_beagle_init_irq(void) |
187 | { | |
87246b75 | 188 | omap2_init_common_hw(NULL); |
2885f000 | 189 | omap_init_irq(); |
f248076c PW |
190 | #ifdef CONFIG_OMAP_32K_TIMER |
191 | omap2_gp_clockevent_set_gptimer(12); | |
192 | #endif | |
2885f000 SMK |
193 | omap_gpio_init(); |
194 | } | |
195 | ||
196 | static struct platform_device omap3_beagle_lcd_device = { | |
197 | .name = "omap3beagle_lcd", | |
198 | .id = -1, | |
199 | }; | |
200 | ||
201 | static struct omap_lcd_config omap3_beagle_lcd_config __initdata = { | |
202 | .ctrl_name = "internal", | |
203 | }; | |
204 | ||
205 | static struct gpio_led gpio_leds[] = { | |
206 | { | |
207 | .name = "beagleboard::usr0", | |
208 | .default_trigger = "heartbeat", | |
209 | .gpio = 150, | |
210 | }, | |
211 | { | |
212 | .name = "beagleboard::usr1", | |
213 | .default_trigger = "mmc0", | |
214 | .gpio = 149, | |
215 | }, | |
90c62bf0 TL |
216 | { |
217 | .name = "beagleboard::pmu_stat", | |
218 | .gpio = -EINVAL, /* gets replaced */ | |
219 | .active_low = true, | |
220 | }, | |
2885f000 SMK |
221 | }; |
222 | ||
223 | static struct gpio_led_platform_data gpio_led_info = { | |
224 | .leds = gpio_leds, | |
225 | .num_leds = ARRAY_SIZE(gpio_leds), | |
226 | }; | |
227 | ||
228 | static struct platform_device leds_gpio = { | |
229 | .name = "leds-gpio", | |
230 | .id = -1, | |
231 | .dev = { | |
232 | .platform_data = &gpio_led_info, | |
233 | }, | |
234 | }; | |
235 | ||
236 | static struct gpio_keys_button gpio_buttons[] = { | |
237 | { | |
238 | .code = BTN_EXTRA, | |
239 | .gpio = 7, | |
240 | .desc = "user", | |
241 | .wakeup = 1, | |
242 | }, | |
243 | }; | |
244 | ||
245 | static struct gpio_keys_platform_data gpio_key_info = { | |
246 | .buttons = gpio_buttons, | |
247 | .nbuttons = ARRAY_SIZE(gpio_buttons), | |
248 | }; | |
249 | ||
250 | static struct platform_device keys_gpio = { | |
251 | .name = "gpio-keys", | |
252 | .id = -1, | |
253 | .dev = { | |
254 | .platform_data = &gpio_key_info, | |
255 | }, | |
256 | }; | |
257 | ||
258 | static struct omap_board_config_kernel omap3_beagle_config[] __initdata = { | |
259 | { OMAP_TAG_UART, &omap3_beagle_uart_config }, | |
260 | { OMAP_TAG_LCD, &omap3_beagle_lcd_config }, | |
261 | }; | |
262 | ||
263 | static struct platform_device *omap3_beagle_devices[] __initdata = { | |
264 | &omap3_beagle_lcd_device, | |
265 | &leds_gpio, | |
266 | &keys_gpio, | |
267 | }; | |
268 | ||
269 | static void __init omap3beagle_flash_init(void) | |
270 | { | |
271 | u8 cs = 0; | |
272 | u8 nandcs = GPMC_CS_NUM + 1; | |
273 | ||
274 | u32 gpmc_base_add = OMAP34XX_GPMC_VIRT; | |
275 | ||
276 | /* find out the chip-select on which NAND exists */ | |
277 | while (cs < GPMC_CS_NUM) { | |
278 | u32 ret = 0; | |
279 | ret = gpmc_cs_read_reg(cs, GPMC_CS_CONFIG1); | |
280 | ||
281 | if ((ret & 0xC00) == 0x800) { | |
282 | printk(KERN_INFO "Found NAND on CS%d\n", cs); | |
283 | if (nandcs > GPMC_CS_NUM) | |
284 | nandcs = cs; | |
285 | } | |
286 | cs++; | |
287 | } | |
288 | ||
289 | if (nandcs > GPMC_CS_NUM) { | |
290 | printk(KERN_INFO "NAND: Unable to find configuration " | |
291 | "in GPMC\n "); | |
292 | return; | |
293 | } | |
294 | ||
295 | if (nandcs < GPMC_CS_NUM) { | |
296 | omap3beagle_nand_data.cs = nandcs; | |
297 | omap3beagle_nand_data.gpmc_cs_baseaddr = (void *) | |
298 | (gpmc_base_add + GPMC_CS0_BASE + nandcs * GPMC_CS_SIZE); | |
299 | omap3beagle_nand_data.gpmc_baseaddr = (void *) (gpmc_base_add); | |
300 | ||
301 | printk(KERN_INFO "Registering NAND on CS%d\n", nandcs); | |
302 | if (platform_device_register(&omap3beagle_nand_device) < 0) | |
303 | printk(KERN_ERR "Unable to register NAND device\n"); | |
304 | } | |
305 | } | |
306 | ||
307 | static void __init omap3_beagle_init(void) | |
308 | { | |
90c62bf0 | 309 | omap3_beagle_i2c_init(); |
2885f000 SMK |
310 | platform_add_devices(omap3_beagle_devices, |
311 | ARRAY_SIZE(omap3_beagle_devices)); | |
312 | omap_board_config = omap3_beagle_config; | |
313 | omap_board_config_size = ARRAY_SIZE(omap3_beagle_config); | |
314 | omap_serial_init(); | |
90c62bf0 | 315 | |
90c62bf0 TL |
316 | omap_cfg_reg(J25_34XX_GPIO170); |
317 | gpio_request(170, "DVI_nPD"); | |
318 | /* REVISIT leave DVI powered down until it's needed ... */ | |
319 | gpio_direction_output(170, true); | |
320 | ||
18cb7aca | 321 | usb_musb_init(); |
2885f000 SMK |
322 | omap3beagle_flash_init(); |
323 | } | |
324 | ||
325 | static void __init omap3_beagle_map_io(void) | |
326 | { | |
327 | omap2_set_globals_343x(); | |
328 | omap2_map_common_io(); | |
329 | } | |
330 | ||
331 | MACHINE_START(OMAP3_BEAGLE, "OMAP3 Beagle Board") | |
332 | /* Maintainer: Syed Mohammed Khasim - http://beagleboard.org */ | |
333 | .phys_io = 0x48000000, | |
334 | .io_pg_offst = ((0xd8000000) >> 18) & 0xfffc, | |
335 | .boot_params = 0x80000100, | |
336 | .map_io = omap3_beagle_map_io, | |
337 | .init_irq = omap3_beagle_init_irq, | |
338 | .init_machine = omap3_beagle_init, | |
339 | .timer = &omap_timer, | |
340 | MACHINE_END |