2 * linux/arch/arm/mach-omap2/board-omap3evm.c
4 * Copyright (C) 2008 Texas Instruments
6 * Modified from mach-omap2/board-3430sdp.c
8 * Initial code: Syed Mohammed Khasim
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.
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>
23 #include <linux/input/matrix_keypad.h>
24 #include <linux/leds.h>
25 #include <linux/interrupt.h>
27 #include <linux/spi/spi.h>
28 #include <linux/spi/ads7846.h>
29 #include <linux/i2c/twl4030.h>
30 #include <linux/usb/otg.h>
31 #include <linux/smsc911x.h>
33 #include <linux/regulator/machine.h>
35 #include <mach/hardware.h>
36 #include <asm/mach-types.h>
37 #include <asm/mach/arch.h>
38 #include <asm/mach/map.h>
40 #include <plat/board.h>
43 #include <plat/common.h>
44 #include <plat/mcspi.h>
46 #include "sdram-micron-mt46h32m32lf-6.h"
47 #include "mmc-twl4030.h"
49 #define OMAP3_EVM_TS_GPIO 175
50 #define OMAP3_EVM_EHCI_VBUS 22
51 #define OMAP3_EVM_EHCI_SELECT 61
53 #define OMAP3EVM_ETHR_START 0x2c000000
54 #define OMAP3EVM_ETHR_SIZE 1024
55 #define OMAP3EVM_ETHR_ID_REV 0x50
56 #define OMAP3EVM_ETHR_GPIO_IRQ 176
57 #define OMAP3EVM_SMSC911X_CS 5
59 static u8 omap3_evm_version;
61 u8 get_omap3_evm_rev(void)
63 return omap3_evm_version;
65 EXPORT_SYMBOL(get_omap3_evm_rev);
67 static void __init omap3_evm_get_revision(void)
72 /* Ethernet PHY ID is stored at ID_REV register */
73 ioaddr = ioremap_nocache(OMAP3EVM_ETHR_START, SZ_1K);
76 smsc_id = readl(ioaddr + OMAP3EVM_ETHR_ID_REV) & 0xFFFF0000;
82 omap3_evm_version = OMAP3EVM_BOARD_GEN_1;
87 omap3_evm_version = OMAP3EVM_BOARD_GEN_2;
91 #if defined(CONFIG_SMSC911X) || defined(CONFIG_SMSC911X_MODULE)
92 static struct resource omap3evm_smsc911x_resources[] = {
94 .start = OMAP3EVM_ETHR_START,
95 .end = (OMAP3EVM_ETHR_START + OMAP3EVM_ETHR_SIZE - 1),
96 .flags = IORESOURCE_MEM,
99 .start = OMAP_GPIO_IRQ(OMAP3EVM_ETHR_GPIO_IRQ),
100 .end = OMAP_GPIO_IRQ(OMAP3EVM_ETHR_GPIO_IRQ),
101 .flags = (IORESOURCE_IRQ | IRQF_TRIGGER_LOW),
105 static struct smsc911x_platform_config smsc911x_config = {
106 .phy_interface = PHY_INTERFACE_MODE_MII,
107 .irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
108 .irq_type = SMSC911X_IRQ_TYPE_OPEN_DRAIN,
109 .flags = (SMSC911X_USE_32BIT | SMSC911X_SAVE_MAC_ADDRESS),
112 static struct platform_device omap3evm_smsc911x_device = {
115 .num_resources = ARRAY_SIZE(omap3evm_smsc911x_resources),
116 .resource = &omap3evm_smsc911x_resources[0],
118 .platform_data = &smsc911x_config,
122 static inline void __init omap3evm_init_smsc911x(void)
128 eth_cs = OMAP3EVM_SMSC911X_CS;
130 l3ck = clk_get(NULL, "l3_ck");
134 rate = clk_get_rate(l3ck);
136 if (gpio_request(OMAP3EVM_ETHR_GPIO_IRQ, "SMSC911x irq") < 0) {
137 printk(KERN_ERR "Failed to request GPIO%d for smsc911x IRQ\n",
138 OMAP3EVM_ETHR_GPIO_IRQ);
142 gpio_direction_input(OMAP3EVM_ETHR_GPIO_IRQ);
143 platform_device_register(&omap3evm_smsc911x_device);
147 static inline void __init omap3evm_init_smsc911x(void) { return; }
150 static struct regulator_consumer_supply omap3evm_vmmc1_supply = {
154 static struct regulator_consumer_supply omap3evm_vsim_supply = {
155 .supply = "vmmc_aux",
158 /* VMMC1 for MMC1 pins CMD, CLK, DAT0..DAT3 (20 mA, plus card == max 220 mA) */
159 static struct regulator_init_data omap3evm_vmmc1 = {
163 .valid_modes_mask = REGULATOR_MODE_NORMAL
164 | REGULATOR_MODE_STANDBY,
165 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE
166 | REGULATOR_CHANGE_MODE
167 | REGULATOR_CHANGE_STATUS,
169 .num_consumer_supplies = 1,
170 .consumer_supplies = &omap3evm_vmmc1_supply,
173 /* VSIM for MMC1 pins DAT4..DAT7 (2 mA, plus card == max 50 mA) */
174 static struct regulator_init_data omap3evm_vsim = {
178 .valid_modes_mask = REGULATOR_MODE_NORMAL
179 | REGULATOR_MODE_STANDBY,
180 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE
181 | REGULATOR_CHANGE_MODE
182 | REGULATOR_CHANGE_STATUS,
184 .num_consumer_supplies = 1,
185 .consumer_supplies = &omap3evm_vsim_supply,
188 static struct twl4030_hsmmc_info mmc[] = {
198 static struct gpio_led gpio_leds[] = {
200 .name = "omap3evm::ledb",
201 /* normally not visible (board underside) */
202 .default_trigger = "default-on",
203 .gpio = -EINVAL, /* gets replaced */
208 static struct gpio_led_platform_data gpio_led_info = {
210 .num_leds = ARRAY_SIZE(gpio_leds),
213 static struct platform_device leds_gpio = {
217 .platform_data = &gpio_led_info,
222 static int omap3evm_twl_gpio_setup(struct device *dev,
223 unsigned gpio, unsigned ngpio)
225 /* gpio + 0 is "mmc0_cd" (input/IRQ) */
226 omap_cfg_reg(L8_34XX_GPIO63);
227 mmc[0].gpio_cd = gpio + 0;
228 twl4030_mmc_init(mmc);
230 /* link regulators to MMC adapters */
231 omap3evm_vmmc1_supply.dev = mmc[0].dev;
232 omap3evm_vsim_supply.dev = mmc[0].dev;
235 * Most GPIOs are for USB OTG. Some are mostly sent to
236 * the P2 connector; notably LEDA for the LCD backlight.
239 /* TWL4030_GPIO_MAX + 1 == ledB (out, active low LED) */
240 gpio_leds[2].gpio = gpio + TWL4030_GPIO_MAX + 1;
242 platform_device_register(&leds_gpio);
247 static struct twl4030_gpio_platform_data omap3evm_gpio_data = {
248 .gpio_base = OMAP_MAX_GPIO_LINES,
249 .irq_base = TWL4030_GPIO_IRQ_BASE,
250 .irq_end = TWL4030_GPIO_IRQ_END,
252 .setup = omap3evm_twl_gpio_setup,
255 static struct twl4030_usb_data omap3evm_usb_data = {
256 .usb_mode = T2_USB_MODE_ULPI,
259 static int board_keymap[] = {
261 KEY(0, 1, KEY_RIGHT),
268 KEY(2, 0, KEY_ENTER),
278 static struct matrix_keymap_data board_map_data = {
279 .keymap = board_keymap,
280 .keymap_size = ARRAY_SIZE(board_keymap),
283 static struct twl4030_keypad_data omap3evm_kp_data = {
284 .keymap_data = &board_map_data,
290 static struct twl4030_madc_platform_data omap3evm_madc_data = {
294 static struct twl4030_codec_audio_data omap3evm_audio_data = {
295 .audio_mclk = 26000000,
298 static struct twl4030_codec_data omap3evm_codec_data = {
299 .audio_mclk = 26000000,
300 .audio = &omap3evm_audio_data,
303 static struct twl4030_platform_data omap3evm_twldata = {
304 .irq_base = TWL4030_IRQ_BASE,
305 .irq_end = TWL4030_IRQ_END,
307 /* platform_data for children goes here */
308 .keypad = &omap3evm_kp_data,
309 .madc = &omap3evm_madc_data,
310 .usb = &omap3evm_usb_data,
311 .gpio = &omap3evm_gpio_data,
312 .codec = &omap3evm_codec_data,
315 static struct i2c_board_info __initdata omap3evm_i2c_boardinfo[] = {
317 I2C_BOARD_INFO("twl4030", 0x48),
318 .flags = I2C_CLIENT_WAKE,
319 .irq = INT_34XX_SYS_NIRQ,
320 .platform_data = &omap3evm_twldata,
324 static int __init omap3_evm_i2c_init(void)
327 * REVISIT: These entries can be set in omap3evm_twl_data
328 * after a merge with MFD tree
330 omap3evm_twldata.vmmc1 = &omap3evm_vmmc1;
331 omap3evm_twldata.vsim = &omap3evm_vsim;
333 omap_register_i2c_bus(1, 2600, omap3evm_i2c_boardinfo,
334 ARRAY_SIZE(omap3evm_i2c_boardinfo));
335 omap_register_i2c_bus(2, 400, NULL, 0);
336 omap_register_i2c_bus(3, 400, NULL, 0);
340 static struct platform_device omap3_evm_lcd_device = {
341 .name = "omap3evm_lcd",
345 static struct omap_lcd_config omap3_evm_lcd_config __initdata = {
346 .ctrl_name = "internal",
349 static void ads7846_dev_init(void)
351 if (gpio_request(OMAP3_EVM_TS_GPIO, "ADS7846 pendown") < 0)
352 printk(KERN_ERR "can't get ads7846 pen down GPIO\n");
354 gpio_direction_input(OMAP3_EVM_TS_GPIO);
356 omap_set_gpio_debounce(OMAP3_EVM_TS_GPIO, 1);
357 omap_set_gpio_debounce_time(OMAP3_EVM_TS_GPIO, 0xa);
360 static int ads7846_get_pendown_state(void)
362 return !gpio_get_value(OMAP3_EVM_TS_GPIO);
365 struct ads7846_platform_data ads7846_config = {
373 .get_pendown_state = ads7846_get_pendown_state,
375 .settle_delay_usecs = 150,
378 static struct omap2_mcspi_device_config ads7846_mcspi_config = {
380 .single_channel = 1, /* 0: slave, 1: master */
383 struct spi_board_info omap3evm_spi_board_info[] = {
385 .modalias = "ads7846",
388 .max_speed_hz = 1500000,
389 .controller_data = &ads7846_mcspi_config,
390 .irq = OMAP_GPIO_IRQ(OMAP3_EVM_TS_GPIO),
391 .platform_data = &ads7846_config,
395 static struct omap_board_config_kernel omap3_evm_config[] __initdata = {
396 { OMAP_TAG_LCD, &omap3_evm_lcd_config },
399 static void __init omap3_evm_init_irq(void)
401 omap_board_config = omap3_evm_config;
402 omap_board_config_size = ARRAY_SIZE(omap3_evm_config);
403 omap2_init_common_hw(mt46h32m32lf6_sdrc_params, NULL);
408 static struct platform_device *omap3_evm_devices[] __initdata = {
409 &omap3_evm_lcd_device,
412 static struct ehci_hcd_omap_platform_data ehci_pdata __initconst = {
414 .port_mode[0] = EHCI_HCD_OMAP_MODE_UNKNOWN,
415 .port_mode[1] = EHCI_HCD_OMAP_MODE_PHY,
416 .port_mode[2] = EHCI_HCD_OMAP_MODE_UNKNOWN,
419 /* PHY reset GPIO will be runtime programmed based on EVM version */
420 .reset_gpio_port[0] = -EINVAL,
421 .reset_gpio_port[1] = -EINVAL,
422 .reset_gpio_port[2] = -EINVAL
425 static void __init omap3_evm_init(void)
427 omap3_evm_get_revision();
429 omap3_evm_i2c_init();
431 platform_add_devices(omap3_evm_devices, ARRAY_SIZE(omap3_evm_devices));
433 spi_register_board_info(omap3evm_spi_board_info,
434 ARRAY_SIZE(omap3evm_spi_board_info));
437 #ifdef CONFIG_NOP_USB_XCEIV
438 /* OMAP3EVM uses ISP1504 phy and so register nop transceiver */
439 usb_nop_xceiv_register();
441 if (get_omap3_evm_rev() >= OMAP3EVM_BOARD_GEN_2) {
442 /* enable EHCI VBUS using GPIO22 */
443 omap_cfg_reg(AF9_34XX_GPIO22);
444 gpio_request(OMAP3_EVM_EHCI_VBUS, "enable EHCI VBUS");
445 gpio_direction_output(OMAP3_EVM_EHCI_VBUS, 0);
446 gpio_set_value(OMAP3_EVM_EHCI_VBUS, 1);
448 /* Select EHCI port on main board */
449 omap_cfg_reg(U3_34XX_GPIO61);
450 gpio_request(OMAP3_EVM_EHCI_SELECT, "select EHCI port");
451 gpio_direction_output(OMAP3_EVM_EHCI_SELECT, 0);
452 gpio_set_value(OMAP3_EVM_EHCI_SELECT, 0);
454 /* setup EHCI phy reset config */
455 omap_cfg_reg(AH14_34XX_GPIO21);
456 ehci_pdata.reset_gpio_port[1] = 21;
459 /* setup EHCI phy reset on MDC */
460 omap_cfg_reg(AF4_34XX_GPIO135_OUT);
461 ehci_pdata.reset_gpio_port[1] = 135;
464 usb_ehci_init(&ehci_pdata);
466 omap3evm_init_smsc911x();
469 static void __init omap3_evm_map_io(void)
471 omap2_set_globals_343x();
472 omap2_map_common_io();
475 MACHINE_START(OMAP3EVM, "OMAP3 EVM")
476 /* Maintainer: Syed Mohammed Khasim - Texas Instruments */
477 .phys_io = 0x48000000,
478 .io_pg_offst = ((0xfa000000) >> 18) & 0xfffc,
479 .boot_params = 0x80000100,
480 .map_io = omap3_evm_map_io,
481 .init_irq = omap3_evm_init_irq,
482 .init_machine = omap3_evm_init,
483 .timer = &omap_timer,