omap3evm: Add board revision function
[deliverable/linux.git] / arch / arm / mach-omap2 / board-omap3evm.c
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1/*
2 * linux/arch/arm/mach-omap2/board-omap3evm.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/gpio.h>
22#include <linux/input.h>
6135434a 23#include <linux/input/matrix_keypad.h>
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24#include <linux/leds.h>
25
26#include <linux/spi/spi.h>
27#include <linux/spi/ads7846.h>
28#include <linux/i2c/twl4030.h>
e8e2ff46 29#include <linux/usb/otg.h>
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30
31#include <mach/hardware.h>
32#include <asm/mach-types.h>
33#include <asm/mach/arch.h>
34#include <asm/mach/map.h>
35
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36#include <plat/board.h>
37#include <plat/mux.h>
38#include <plat/usb.h>
39#include <plat/common.h>
40#include <plat/mcspi.h>
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41
42#include "sdram-micron-mt46h32m32lf-6.h"
43#include "mmc-twl4030.h"
44
45#define OMAP3_EVM_TS_GPIO 175
46
47#define OMAP3EVM_ETHR_START 0x2c000000
48#define OMAP3EVM_ETHR_SIZE 1024
db408023 49#define OMAP3EVM_ETHR_ID_REV 0x50
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50#define OMAP3EVM_ETHR_GPIO_IRQ 176
51#define OMAP3EVM_SMC911X_CS 5
52
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53static u8 omap3_evm_version;
54
55u8 get_omap3_evm_rev(void)
56{
57 return omap3_evm_version;
58}
59EXPORT_SYMBOL(get_omap3_evm_rev);
60
61static void __init omap3_evm_get_revision(void)
62{
63 void __iomem *ioaddr;
64 unsigned int smsc_id;
65
66 /* Ethernet PHY ID is stored at ID_REV register */
67 ioaddr = ioremap_nocache(OMAP3EVM_ETHR_START, SZ_1K);
68 if (!ioaddr)
69 return;
70 smsc_id = readl(ioaddr + OMAP3EVM_ETHR_ID_REV) & 0xFFFF0000;
71 iounmap(ioaddr);
72
73 switch (smsc_id) {
74 /*SMSC9115 chipset*/
75 case 0x01150000:
76 omap3_evm_version = OMAP3EVM_BOARD_GEN_1;
77 break;
78 /*SMSC 9220 chipset*/
79 case 0x92200000:
80 default:
81 omap3_evm_version = OMAP3EVM_BOARD_GEN_2;
82 }
83}
84
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85static struct resource omap3evm_smc911x_resources[] = {
86 [0] = {
87 .start = OMAP3EVM_ETHR_START,
88 .end = (OMAP3EVM_ETHR_START + OMAP3EVM_ETHR_SIZE - 1),
89 .flags = IORESOURCE_MEM,
90 },
91 [1] = {
92 .start = OMAP_GPIO_IRQ(OMAP3EVM_ETHR_GPIO_IRQ),
93 .end = OMAP_GPIO_IRQ(OMAP3EVM_ETHR_GPIO_IRQ),
94 .flags = IORESOURCE_IRQ,
95 },
96};
97
98static struct platform_device omap3evm_smc911x_device = {
99 .name = "smc911x",
100 .id = -1,
101 .num_resources = ARRAY_SIZE(omap3evm_smc911x_resources),
102 .resource = &omap3evm_smc911x_resources[0],
103};
104
105static inline void __init omap3evm_init_smc911x(void)
106{
107 int eth_cs;
108 struct clk *l3ck;
109 unsigned int rate;
110
111 eth_cs = OMAP3EVM_SMC911X_CS;
112
113 l3ck = clk_get(NULL, "l3_ck");
114 if (IS_ERR(l3ck))
115 rate = 100000000;
116 else
117 rate = clk_get_rate(l3ck);
118
119 if (gpio_request(OMAP3EVM_ETHR_GPIO_IRQ, "SMC911x irq") < 0) {
120 printk(KERN_ERR "Failed to request GPIO%d for smc911x IRQ\n",
121 OMAP3EVM_ETHR_GPIO_IRQ);
122 return;
123 }
124
125 gpio_direction_input(OMAP3EVM_ETHR_GPIO_IRQ);
126}
127
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128static struct twl4030_hsmmc_info mmc[] = {
129 {
130 .mmc = 1,
131 .wires = 4,
132 .gpio_cd = -EINVAL,
133 .gpio_wp = 63,
134 },
135 {} /* Terminator */
136};
137
138static struct gpio_led gpio_leds[] = {
139 {
140 .name = "omap3evm::ledb",
141 /* normally not visible (board underside) */
142 .default_trigger = "default-on",
143 .gpio = -EINVAL, /* gets replaced */
144 .active_low = true,
145 },
146};
147
148static struct gpio_led_platform_data gpio_led_info = {
149 .leds = gpio_leds,
150 .num_leds = ARRAY_SIZE(gpio_leds),
151};
152
153static struct platform_device leds_gpio = {
154 .name = "leds-gpio",
155 .id = -1,
156 .dev = {
157 .platform_data = &gpio_led_info,
158 },
159};
160
161
162static int omap3evm_twl_gpio_setup(struct device *dev,
163 unsigned gpio, unsigned ngpio)
164{
165 /* gpio + 0 is "mmc0_cd" (input/IRQ) */
166 omap_cfg_reg(L8_34XX_GPIO63);
167 mmc[0].gpio_cd = gpio + 0;
168 twl4030_mmc_init(mmc);
169
170 /*
171 * Most GPIOs are for USB OTG. Some are mostly sent to
172 * the P2 connector; notably LEDA for the LCD backlight.
173 */
174
175 /* TWL4030_GPIO_MAX + 1 == ledB (out, active low LED) */
176 gpio_leds[2].gpio = gpio + TWL4030_GPIO_MAX + 1;
177
178 platform_device_register(&leds_gpio);
179
180 return 0;
181}
182
183static struct twl4030_gpio_platform_data omap3evm_gpio_data = {
184 .gpio_base = OMAP_MAX_GPIO_LINES,
185 .irq_base = TWL4030_GPIO_IRQ_BASE,
186 .irq_end = TWL4030_GPIO_IRQ_END,
187 .use_leds = true,
188 .setup = omap3evm_twl_gpio_setup,
189};
190
191static struct twl4030_usb_data omap3evm_usb_data = {
192 .usb_mode = T2_USB_MODE_ULPI,
193};
194
4f543332 195static int board_keymap[] = {
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196 KEY(0, 0, KEY_LEFT),
197 KEY(0, 1, KEY_RIGHT),
198 KEY(0, 2, KEY_A),
199 KEY(0, 3, KEY_B),
200 KEY(1, 0, KEY_DOWN),
201 KEY(1, 1, KEY_UP),
202 KEY(1, 2, KEY_E),
203 KEY(1, 3, KEY_F),
204 KEY(2, 0, KEY_ENTER),
205 KEY(2, 1, KEY_I),
206 KEY(2, 2, KEY_J),
207 KEY(2, 3, KEY_K),
208 KEY(3, 0, KEY_M),
209 KEY(3, 1, KEY_N),
210 KEY(3, 2, KEY_O),
211 KEY(3, 3, KEY_P)
212};
213
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214static struct matrix_keymap_data board_map_data = {
215 .keymap = board_keymap,
216 .keymap_size = ARRAY_SIZE(board_keymap),
217};
218
53c5ec31 219static struct twl4030_keypad_data omap3evm_kp_data = {
4f543332 220 .keymap_data = &board_map_data,
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221 .rows = 4,
222 .cols = 4,
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223 .rep = 1,
224};
225
226static struct twl4030_madc_platform_data omap3evm_madc_data = {
227 .irq_line = 1,
228};
229
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230static struct twl4030_codec_audio_data omap3evm_audio_data = {
231 .audio_mclk = 26000000,
232};
233
234static struct twl4030_codec_data omap3evm_codec_data = {
6df74efb 235 .audio_mclk = 26000000,
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236 .audio = &omap3evm_audio_data,
237};
238
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239static struct twl4030_platform_data omap3evm_twldata = {
240 .irq_base = TWL4030_IRQ_BASE,
241 .irq_end = TWL4030_IRQ_END,
242
243 /* platform_data for children goes here */
244 .keypad = &omap3evm_kp_data,
245 .madc = &omap3evm_madc_data,
246 .usb = &omap3evm_usb_data,
247 .gpio = &omap3evm_gpio_data,
e86fa0b4 248 .codec = &omap3evm_codec_data,
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249};
250
251static struct i2c_board_info __initdata omap3evm_i2c_boardinfo[] = {
252 {
253 I2C_BOARD_INFO("twl4030", 0x48),
254 .flags = I2C_CLIENT_WAKE,
255 .irq = INT_34XX_SYS_NIRQ,
256 .platform_data = &omap3evm_twldata,
257 },
258};
259
260static int __init omap3_evm_i2c_init(void)
261{
262 omap_register_i2c_bus(1, 2600, omap3evm_i2c_boardinfo,
263 ARRAY_SIZE(omap3evm_i2c_boardinfo));
264 omap_register_i2c_bus(2, 400, NULL, 0);
265 omap_register_i2c_bus(3, 400, NULL, 0);
266 return 0;
267}
268
269static struct platform_device omap3_evm_lcd_device = {
270 .name = "omap3evm_lcd",
271 .id = -1,
272};
273
274static struct omap_lcd_config omap3_evm_lcd_config __initdata = {
275 .ctrl_name = "internal",
276};
277
278static void ads7846_dev_init(void)
279{
280 if (gpio_request(OMAP3_EVM_TS_GPIO, "ADS7846 pendown") < 0)
281 printk(KERN_ERR "can't get ads7846 pen down GPIO\n");
282
283 gpio_direction_input(OMAP3_EVM_TS_GPIO);
284
285 omap_set_gpio_debounce(OMAP3_EVM_TS_GPIO, 1);
286 omap_set_gpio_debounce_time(OMAP3_EVM_TS_GPIO, 0xa);
287}
288
289static int ads7846_get_pendown_state(void)
290{
291 return !gpio_get_value(OMAP3_EVM_TS_GPIO);
292}
293
294struct ads7846_platform_data ads7846_config = {
295 .x_max = 0x0fff,
296 .y_max = 0x0fff,
297 .x_plate_ohms = 180,
298 .pressure_max = 255,
299 .debounce_max = 10,
300 .debounce_tol = 3,
301 .debounce_rep = 1,
302 .get_pendown_state = ads7846_get_pendown_state,
303 .keep_vref_on = 1,
304 .settle_delay_usecs = 150,
305};
306
307static struct omap2_mcspi_device_config ads7846_mcspi_config = {
308 .turbo_mode = 0,
309 .single_channel = 1, /* 0: slave, 1: master */
310};
311
312struct spi_board_info omap3evm_spi_board_info[] = {
313 [0] = {
314 .modalias = "ads7846",
315 .bus_num = 1,
316 .chip_select = 0,
317 .max_speed_hz = 1500000,
318 .controller_data = &ads7846_mcspi_config,
319 .irq = OMAP_GPIO_IRQ(OMAP3_EVM_TS_GPIO),
320 .platform_data = &ads7846_config,
321 },
322};
323
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324static struct omap_board_config_kernel omap3_evm_config[] __initdata = {
325 { OMAP_TAG_LCD, &omap3_evm_lcd_config },
326};
327
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328static void __init omap3_evm_init_irq(void)
329{
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330 omap_board_config = omap3_evm_config;
331 omap_board_config_size = ARRAY_SIZE(omap3_evm_config);
58cda884 332 omap2_init_common_hw(mt46h32m32lf6_sdrc_params, NULL);
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333 omap_init_irq();
334 omap_gpio_init();
335 omap3evm_init_smc911x();
336}
337
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338static struct platform_device *omap3_evm_devices[] __initdata = {
339 &omap3_evm_lcd_device,
340 &omap3evm_smc911x_device,
341};
342
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343static struct ehci_hcd_omap_platform_data ehci_pdata __initconst = {
344
345 .port_mode[0] = EHCI_HCD_OMAP_MODE_UNKNOWN,
346 .port_mode[1] = EHCI_HCD_OMAP_MODE_PHY,
347 .port_mode[2] = EHCI_HCD_OMAP_MODE_UNKNOWN,
348
349 .phy_reset = true,
350 .reset_gpio_port[0] = -EINVAL,
351 .reset_gpio_port[1] = 135,
352 .reset_gpio_port[2] = -EINVAL
353};
354
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355static void __init omap3_evm_init(void)
356{
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357 omap3_evm_get_revision();
358
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359 omap3_evm_i2c_init();
360
361 platform_add_devices(omap3_evm_devices, ARRAY_SIZE(omap3_evm_devices));
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362
363 spi_register_board_info(omap3evm_spi_board_info,
364 ARRAY_SIZE(omap3evm_spi_board_info));
365
366 omap_serial_init();
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367#ifdef CONFIG_NOP_USB_XCEIV
368 /* OMAP3EVM uses ISP1504 phy and so register nop transceiver */
369 usb_nop_xceiv_register();
370#endif
53c5ec31 371 usb_musb_init();
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372 /* Setup EHCI phy reset padconfig */
373 omap_cfg_reg(AF4_34XX_GPIO135_OUT);
374 usb_ehci_init(&ehci_pdata);
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375 ads7846_dev_init();
376}
377
378static void __init omap3_evm_map_io(void)
379{
380 omap2_set_globals_343x();
381 omap2_map_common_io();
382}
383
384MACHINE_START(OMAP3EVM, "OMAP3 EVM")
385 /* Maintainer: Syed Mohammed Khasim - Texas Instruments */
386 .phys_io = 0x48000000,
b4224b23 387 .io_pg_offst = ((0xfa000000) >> 18) & 0xfffc,
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388 .boot_params = 0x80000100,
389 .map_io = omap3_evm_map_io,
390 .init_irq = omap3_evm_init_irq,
391 .init_machine = omap3_evm_init,
392 .timer = &omap_timer,
393MACHINE_END
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