2 * linux/arch/arm/mach-omap2/board-ldp.c
4 * Copyright (C) 2008 Texas Instruments Inc.
5 * Nishant Kamat <nskamat@ti.com>
7 * Modified from mach-omap2/board-3430sdp.c
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License version 2 as
11 * published by the Free Software Foundation.
14 #include <linux/kernel.h>
15 #include <linux/init.h>
16 #include <linux/platform_device.h>
17 #include <linux/delay.h>
18 #include <linux/input.h>
19 #include <linux/workqueue.h>
20 #include <linux/err.h>
21 #include <linux/clk.h>
22 #include <linux/spi/spi.h>
23 #include <linux/spi/ads7846.h>
24 #include <linux/i2c/twl4030.h>
26 #include <mach/hardware.h>
27 #include <asm/mach-types.h>
28 #include <asm/mach/arch.h>
29 #include <asm/mach/map.h>
31 #include <mach/board-ldp.h>
32 #include <mach/mcspi.h>
33 #include <mach/gpio.h>
34 #include <mach/board.h>
35 #include <mach/common.h>
36 #include <mach/gpmc.h>
38 #include <mach/usb-musb.h>
41 #include <asm/delay.h>
42 #include <mach/control.h>
44 #define CONFIG_DISABLE_HFCLK 1
46 #define ENABLE_VAUX1_DEDICATED 0x03
47 #define ENABLE_VAUX1_DEV_GRP 0x20
49 #define TWL4030_MSECURE_GPIO 22
53 static int __init msecure_init(void)
57 #ifdef CONFIG_RTC_DRV_TWL4030
58 /* 3430ES2.0 doesn't have msecure/gpio-22 line connected to T2 */
59 if (omap_type() == OMAP2_DEVICE_TYPE_GP &&
60 omap_rev() < OMAP3430_REV_ES2_0) {
61 void __iomem *msecure_pad_config_reg =
62 omap_ctrl_base_get() + 0xA3C;
66 ret = gpio_request(TWL4030_MSECURE_GPIO, "msecure");
68 printk(KERN_ERR "msecure_init: can't"
69 "reserve GPIO:%d !\n", TWL4030_MSECURE_GPIO);
73 * TWL4030 will be in secure mode if msecure line from OMAP
74 * is low. Make msecure line high in order to change the
75 * TWL4030 RTC time and calender registers.
78 tmp = __raw_readw(msecure_pad_config_reg);
79 tmp &= 0xF8; /* To enable mux mode 03/04 = GPIO_RTC */
80 tmp |= mux_mask;/* To enable mux mode 03/04 = GPIO_RTC */
81 __raw_writew(tmp, msecure_pad_config_reg);
83 gpio_direction_output(TWL4030_MSECURE_GPIO, 1);
91 * @brief ads7846_dev_init : Requests & sets GPIO line for pen-irq
93 * @return - void. If request gpio fails then Flag KERN_ERR.
95 static void ads7846_dev_init(void)
97 if (omap_request_gpio(ts_gpio) < 0) {
98 printk(KERN_ERR "can't get ads746 pen down GPIO\n");
102 omap_set_gpio_direction(ts_gpio, 1);
104 omap_set_gpio_debounce(ts_gpio, 1);
105 omap_set_gpio_debounce_time(ts_gpio, 0xa);
108 static int ads7846_get_pendown_state(void)
110 return !omap_get_gpio_datain(ts_gpio);
114 * This enable(1)/disable(0) the voltage for TS: uses twl4030 calls
116 static int ads7846_vaux_control(int vaux_cntrl)
120 #ifdef CONFIG_TWL4030_CORE
121 /* check for return value of ldo_use: if success it returns 0 */
122 if (vaux_cntrl == VAUX_ENABLE) {
123 if (ret != twl4030_i2c_write_u8(TWL4030_MODULE_PM_RECEIVER,
124 ENABLE_VAUX1_DEDICATED, TWL4030_VAUX1_DEDICATED))
126 if (ret != twl4030_i2c_write_u8(TWL4030_MODULE_PM_RECEIVER,
127 ENABLE_VAUX1_DEV_GRP, TWL4030_VAUX1_DEV_GRP))
129 } else if (vaux_cntrl == VAUX_DISABLE) {
130 if (ret != twl4030_i2c_write_u8(TWL4030_MODULE_PM_RECEIVER,
131 0x00, TWL4030_VAUX1_DEDICATED))
133 if (ret != twl4030_i2c_write_u8(TWL4030_MODULE_PM_RECEIVER,
134 0x00, TWL4030_VAUX1_DEV_GRP))
143 static struct ads7846_platform_data tsc2046_config __initdata = {
144 .get_pendown_state = ads7846_get_pendown_state,
146 .vaux_control = ads7846_vaux_control,
150 static struct omap2_mcspi_device_config tsc2046_mcspi_config = {
152 .single_channel = 1, /* 0: slave, 1: master */
155 static struct spi_board_info ldp_spi_board_info[] __initdata = {
158 * TSC2046 operates at a max freqency of 2MHz, so
159 * operate slightly below at 1.5MHz
161 .modalias = "ads7846",
164 .max_speed_hz = 1500000,
165 .controller_data = &tsc2046_mcspi_config,
167 .platform_data = &tsc2046_config,
171 static struct platform_device ldp_lcd_device = {
176 static struct platform_device *ldp_devices[] __initdata = {
180 static void __init omap_ldp_init_irq(void)
182 omap2_init_common_hw(NULL);
187 static struct omap_uart_config ldp_uart_config __initdata = {
188 .enabled_uarts = ((1 << 0) | (1 << 1) | (1 << 2)),
191 static struct omap_lcd_config ldp_lcd_config __initdata = {
192 .ctrl_name = "internal",
195 static struct omap_board_config_kernel ldp_config[] __initdata = {
196 { OMAP_TAG_UART, &ldp_uart_config },
197 { OMAP_TAG_LCD, &ldp_lcd_config },
200 static int ldp_batt_table[] = {
202 30800, 29500, 28300, 27100,
203 26000, 24900, 23900, 22900, 22000, 21100, 20300, 19400, 18700, 17900,
204 17200, 16500, 15900, 15300, 14700, 14100, 13600, 13100, 12600, 12100,
205 11600, 11200, 10800, 10400, 10000, 9630, 9280, 8950, 8620, 8310,
206 8020, 7730, 7460, 7200, 6950, 6710, 6470, 6250, 6040, 5830,
207 5640, 5450, 5260, 5090, 4920, 4760, 4600, 4450, 4310, 4170,
208 4040, 3910, 3790, 3670, 3550
211 static struct twl4030_ins __initdata sleep_on_seq[] = {
213 * Turn off VDD1 and VDD2.
215 {MSG_SINGULAR(DEV_GRP_P1, 0xf, RES_STATE_OFF), 4},
216 {MSG_SINGULAR(DEV_GRP_P1, 0x10, RES_STATE_OFF), 2},
217 #ifdef CONFIG_DISABLE_HFCLK
219 * And also turn off the OMAP3 PLLs and the sysclk output.
221 {MSG_SINGULAR(DEV_GRP_P1, 0x7, RES_STATE_OFF), 3},
222 {MSG_SINGULAR(DEV_GRP_P1, 0x19, RES_STATE_OFF), 3},
226 static struct twl4030_script sleep_on_script __initdata = {
227 .script = sleep_on_seq,
228 .size = ARRAY_SIZE(sleep_on_seq),
229 .flags = TRITON_SLEEP_SCRIPT,
232 static struct twl4030_ins wakeup_seq[] __initdata = {
233 #ifndef CONFIG_DISABLE_HFCLK
235 * Wakeup VDD1 and VDD2.
237 {MSG_SINGULAR(DEV_GRP_P1, 0xf, RES_STATE_ACTIVE), 4},
238 {MSG_SINGULAR(DEV_GRP_P1, 0x10, RES_STATE_ACTIVE), 2},
241 * Reenable the OMAP3 PLLs.
242 * Wakeup VDD1 and VDD2.
243 * Reenable sysclk output.
245 {MSG_SINGULAR(DEV_GRP_P1, 0x7, RES_STATE_ACTIVE), 0x30},
246 {MSG_SINGULAR(DEV_GRP_P1, 0xf, RES_STATE_ACTIVE), 0x30},
247 {MSG_SINGULAR(DEV_GRP_P1, 0x10, RES_STATE_ACTIVE), 0x37},
248 {MSG_SINGULAR(DEV_GRP_P1, 0x19, RES_STATE_ACTIVE), 3},
249 #endif /* #ifndef CONFIG_DISABLE_HFCLK */
252 static struct twl4030_script wakeup_script __initdata = {
253 .script = wakeup_seq,
254 .size = ARRAY_SIZE(wakeup_seq),
255 .flags = TRITON_WAKEUP12_SCRIPT | TRITON_WAKEUP3_SCRIPT,
258 static struct twl4030_ins wrst_seq[] __initdata = {
261 * Reset VDD1 regulator.
262 * Reset VDD2 regulator.
263 * Reset VPLL1 regulator.
264 * Enable sysclk output.
267 {MSG_SINGULAR(DEV_GRP_NULL, 0x1b, RES_STATE_OFF), 2},
268 {MSG_SINGULAR(DEV_GRP_P1, 0xf, RES_STATE_WRST), 15},
269 {MSG_SINGULAR(DEV_GRP_P1, 0x10, RES_STATE_WRST), 15},
270 {MSG_SINGULAR(DEV_GRP_P1, 0x7, RES_STATE_WRST), 0x60},
271 {MSG_SINGULAR(DEV_GRP_P1, 0x19, RES_STATE_ACTIVE), 2},
272 {MSG_SINGULAR(DEV_GRP_NULL, 0x1b, RES_STATE_ACTIVE), 2},
275 static struct twl4030_script wrst_script __initdata = {
277 .size = ARRAY_SIZE(wakeup_seq),
278 .flags = TRITON_WRST_SCRIPT,
281 static struct twl4030_script *twl4030_scripts[] __initdata = {
287 static struct twl4030_power_data sdp3430_t2scripts_data __initdata = {
288 .scripts = twl4030_scripts,
289 .size = ARRAY_SIZE(twl4030_scripts),
292 static struct twl4030_bci_platform_data ldp_bci_data = {
293 .battery_tmp_tbl = ldp_batt_table,
294 .tblsize = ARRAY_SIZE(ldp_batt_table),
297 static struct twl4030_usb_data ldp_usb_data = {
298 .usb_mode = T2_USB_MODE_ULPI,
301 static struct twl4030_gpio_platform_data ldp_gpio_data = {
302 .gpio_base = OMAP_MAX_GPIO_LINES,
303 .irq_base = TWL4030_GPIO_IRQ_BASE,
304 .irq_end = TWL4030_GPIO_IRQ_END,
307 static struct twl4030_madc_platform_data ldp_madc_data = {
311 static struct twl4030_platform_data ldp_twldata = {
312 .irq_base = TWL4030_IRQ_BASE,
313 .irq_end = TWL4030_IRQ_END,
315 /* platform_data for children goes here */
316 .bci = &ldp_bci_data,
317 .madc = &ldp_madc_data,
318 .usb = &ldp_usb_data,
319 .power = &sdp3430_t2scripts_data,
320 .gpio = &ldp_gpio_data,
323 static struct i2c_board_info __initdata ldp_i2c_boardinfo[] = {
325 I2C_BOARD_INFO("twl4030", 0x48),
326 .flags = I2C_CLIENT_WAKE,
327 .irq = INT_34XX_SYS_NIRQ,
328 .platform_data = &ldp_twldata,
332 static int __init omap_i2c_init(void)
334 omap_register_i2c_bus(1, 2600, ldp_i2c_boardinfo,
335 ARRAY_SIZE(ldp_i2c_boardinfo));
336 omap_register_i2c_bus(2, 400, NULL, 0);
337 omap_register_i2c_bus(3, 400, NULL, 0);
341 static struct twl4030_hsmmc_info mmc[] __initdata = {
350 static void __init omap_ldp_init(void)
353 platform_add_devices(ldp_devices, ARRAY_SIZE(ldp_devices));
354 omap_board_config = ldp_config;
355 omap_board_config_size = ARRAY_SIZE(ldp_config);
357 ldp_spi_board_info[0].irq = OMAP_GPIO_IRQ(ts_gpio);
358 spi_register_board_info(ldp_spi_board_info,
359 ARRAY_SIZE(ldp_spi_board_info));
367 static void __init omap_ldp_map_io(void)
369 omap2_set_globals_343x();
370 omap2_map_common_io();
373 MACHINE_START(OMAP_LDP, "OMAP LDP board")
374 .phys_io = 0x48000000,
375 .io_pg_offst = ((0xd8000000) >> 18) & 0xfffc,
376 .boot_params = 0x80000100,
377 .map_io = omap_ldp_map_io,
378 .init_irq = omap_ldp_init_irq,
379 .init_machine = omap_ldp_init,
380 .timer = &omap_timer,