2 * linux/arch/arm/mach-omap2/board-3430sdp.c
4 * Copyright (C) 2007 Texas Instruments
6 * Modified from mach-omap2/board-generic.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/input.h>
20 #include <linux/workqueue.h>
21 #include <linux/err.h>
22 #include <linux/clk.h>
23 #include <linux/spi/spi.h>
24 #include <linux/spi/ads7846.h>
25 #include <linux/i2c/twl4030.h>
27 #include <mach/hardware.h>
28 #include <asm/mach-types.h>
29 #include <asm/mach/arch.h>
30 #include <asm/mach/map.h>
32 #include <mach/mcspi.h>
33 #include <mach/gpio.h>
35 #include <mach/board.h>
36 #include <mach/usb-musb.h>
37 #include <mach/usb-ehci.h>
38 #include <mach/hsmmc.h>
39 #include <mach/common.h>
40 #include <mach/keypad.h>
42 #include <mach/gpmc.h>
43 #include <linux/i2c/twl4030-rtc.h>
46 #include <asm/delay.h>
47 #include <mach/control.h>
49 #include "sdram-qimonda-hyb18m512160af-6.h"
51 #define SDP3430_SMC91X_CS 3
53 #define ENABLE_VAUX3_DEDICATED 0x03
54 #define ENABLE_VAUX3_DEV_GRP 0x20
57 #define TWL4030_MSECURE_GPIO 22
59 static struct resource sdp3430_smc91x_resources[] = {
61 .start = OMAP34XX_ETHR_START,
62 .end = OMAP34XX_ETHR_START + SZ_4K,
63 .flags = IORESOURCE_MEM,
68 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWLEVEL,
72 static struct platform_device sdp3430_smc91x_device = {
75 .num_resources = ARRAY_SIZE(sdp3430_smc91x_resources),
76 .resource = sdp3430_smc91x_resources,
79 static int sdp3430_keymap[] = {
113 static struct twl4030_keypad_data sdp3430_kp_data = {
116 .keymap = sdp3430_keymap,
117 .keymapsize = ARRAY_SIZE(sdp3430_keymap),
119 .irq = TWL4030_MODIRQ_KEYPAD,
124 static int __init msecure_init(void)
128 #ifdef CONFIG_RTC_DRV_TWL4030
129 /* 3430ES2.0 doesn't have msecure/gpio-22 line connected to T2 */
130 if (omap_type() == OMAP2_DEVICE_TYPE_GP &&
131 system_rev < OMAP3430_REV_ES2_0) {
132 u32 msecure_pad_config_reg = omap_ctrl_base_get() + 0xA3C;
136 ret = gpio_request(TWL4030_MSECURE_GPIO, "msecure");
138 printk(KERN_ERR "msecure_init: can't"
139 "reserve GPIO:%d !\n", TWL4030_MSECURE_GPIO);
143 * TWL4030 will be in secure mode if msecure line from OMAP
144 * is low. Make msecure line high in order to change the
145 * TWL4030 RTC time and calender registers.
147 tmp = omap_readw(msecure_pad_config_reg);
148 tmp &= 0xF8; /* To enable mux mode 03/04 = GPIO_RTC */
149 tmp |= mux_mask;/* To enable mux mode 03/04 = GPIO_RTC */
150 omap_writew(tmp, msecure_pad_config_reg);
152 gpio_direction_output(TWL4030_MSECURE_GPIO, 1);
160 * @brief ads7846_dev_init : Requests & sets GPIO line for pen-irq
162 * @return - void. If request gpio fails then Flag KERN_ERR.
164 static void ads7846_dev_init(void)
166 if (omap_request_gpio(ts_gpio) < 0) {
167 printk(KERN_ERR "can't get ads746 pen down GPIO\n");
171 omap_set_gpio_direction(ts_gpio, 1);
173 omap_set_gpio_debounce(ts_gpio, 1);
174 omap_set_gpio_debounce_time(ts_gpio, 0xa);
177 static int ads7846_get_pendown_state(void)
179 return !omap_get_gpio_datain(ts_gpio);
183 * This enable(1)/disable(0) the voltage for TS: uses twl4030 calls
185 static int ads7846_vaux_control(int vaux_cntrl)
189 #ifdef CONFIG_TWL4030_CORE
190 /* check for return value of ldo_use: if success it returns 0 */
191 if (vaux_cntrl == VAUX_ENABLE) {
192 if (ret != twl4030_i2c_write_u8(TWL4030_MODULE_PM_RECEIVER,
193 ENABLE_VAUX3_DEDICATED, TWL4030_VAUX3_DEDICATED))
195 if (ret != twl4030_i2c_write_u8(TWL4030_MODULE_PM_RECEIVER,
196 ENABLE_VAUX3_DEV_GRP, TWL4030_VAUX3_DEV_GRP))
198 } else if (vaux_cntrl == VAUX_DISABLE) {
199 if (ret != twl4030_i2c_write_u8(TWL4030_MODULE_PM_RECEIVER,
200 0x00, TWL4030_VAUX3_DEDICATED))
202 if (ret != twl4030_i2c_write_u8(TWL4030_MODULE_PM_RECEIVER,
203 0x00, TWL4030_VAUX3_DEV_GRP))
212 static struct ads7846_platform_data tsc2046_config __initdata = {
213 .get_pendown_state = ads7846_get_pendown_state,
215 .vaux_control = ads7846_vaux_control,
219 static struct omap2_mcspi_device_config tsc2046_mcspi_config = {
221 .single_channel = 1, /* 0: slave, 1: master */
224 static struct spi_board_info sdp3430_spi_board_info[] __initdata = {
227 * TSC2046 operates at a max freqency of 2MHz, so
228 * operate slightly below at 1.5MHz
230 .modalias = "ads7846",
233 .max_speed_hz = 1500000,
234 .controller_data = &tsc2046_mcspi_config,
236 .platform_data = &tsc2046_config,
240 static struct platform_device sdp3430_lcd_device = {
241 .name = "sdp2430_lcd",
245 static struct platform_device *sdp3430_devices[] __initdata = {
246 &sdp3430_smc91x_device,
250 static inline void __init sdp3430_init_smc91x(void)
253 unsigned long cs_mem_base;
256 eth_cs = SDP3430_SMC91X_CS;
258 if (gpmc_cs_request(eth_cs, SZ_16M, &cs_mem_base) < 0) {
259 printk(KERN_ERR "Failed to request GPMC mem for smc91x\n");
263 sdp3430_smc91x_resources[0].start = cs_mem_base + 0x0;
264 sdp3430_smc91x_resources[0].end = cs_mem_base + 0xf;
267 if (system_rev > OMAP3430_REV_ES1_0)
268 eth_gpio = OMAP34XX_ETHR_GPIO_IRQ_SDPV2;
270 eth_gpio = OMAP34XX_ETHR_GPIO_IRQ_SDPV1;
272 sdp3430_smc91x_resources[1].start = OMAP_GPIO_IRQ(eth_gpio);
274 if (omap_request_gpio(eth_gpio) < 0) {
275 printk(KERN_ERR "Failed to request GPIO%d for smc91x IRQ\n",
279 omap_set_gpio_direction(eth_gpio, 1);
282 static void __init omap_3430sdp_init_irq(void)
284 omap2_init_common_hw(hyb18m512160af6_sdrc_params);
287 sdp3430_init_smc91x();
290 static struct omap_uart_config sdp3430_uart_config __initdata = {
291 .enabled_uarts = ((1 << 0) | (1 << 1) | (1 << 2)),
294 static struct omap_lcd_config sdp3430_lcd_config __initdata = {
295 .ctrl_name = "internal",
298 static struct omap_board_config_kernel sdp3430_config[] __initdata = {
299 { OMAP_TAG_UART, &sdp3430_uart_config },
300 { OMAP_TAG_LCD, &sdp3430_lcd_config },
303 static struct twl4030_usb_data sdp3430_usb_data = {
304 .usb_mode = T2_USB_MODE_ULPI,
307 static struct twl4030_platform_data sdp3430_twldata = {
308 .irq_base = TWL4030_IRQ_BASE,
309 .irq_end = TWL4030_IRQ_END,
311 /* platform_data for children goes here */
312 .keypad = &sdp3430_kp_data,
313 .usb = &sdp3430_usb_data,
316 static struct i2c_board_info __initdata sdp3430_i2c_boardinfo[] = {
318 I2C_BOARD_INFO("twl4030", 0x48),
319 .flags = I2C_CLIENT_WAKE,
320 .irq = INT_34XX_SYS_NIRQ,
321 .platform_data = &sdp3430_twldata,
325 static int __init omap3430_i2c_init(void)
327 omap_register_i2c_bus(1, 2600, sdp3430_i2c_boardinfo,
328 ARRAY_SIZE(sdp3430_i2c_boardinfo));
329 omap_register_i2c_bus(2, 400, NULL, 0);
330 omap_register_i2c_bus(3, 400, NULL, 0);
334 extern void __init sdp3430_flash_init(void);
336 static void __init omap_3430sdp_init(void)
339 platform_add_devices(sdp3430_devices, ARRAY_SIZE(sdp3430_devices));
340 omap_board_config = sdp3430_config;
341 omap_board_config_size = ARRAY_SIZE(sdp3430_config);
342 if (system_rev > OMAP3430_REV_ES1_0)
343 ts_gpio = OMAP34XX_TS_GPIO_IRQ_SDPV2;
345 ts_gpio = OMAP34XX_TS_GPIO_IRQ_SDPV1;
346 sdp3430_spi_board_info[0].irq = OMAP_GPIO_IRQ(ts_gpio);
347 spi_register_board_info(sdp3430_spi_board_info,
348 ARRAY_SIZE(sdp3430_spi_board_info));
350 sdp3430_flash_init();
352 twl4030_bci_battery_init();
359 static void __init omap_3430sdp_map_io(void)
361 omap2_set_globals_343x();
362 omap2_map_common_io();
365 MACHINE_START(OMAP_3430SDP, "OMAP3430 3430SDP board")
366 /* Maintainer: Syed Khasim - Texas Instruments Inc */
367 .phys_io = 0x48000000,
368 .io_pg_offst = ((0xd8000000) >> 18) & 0xfffc,
369 .boot_params = 0x80000100,
370 .map_io = omap_3430sdp_map_io,
371 .init_irq = omap_3430sdp_init_irq,
372 .init_machine = omap_3430sdp_init,
373 .timer = &omap_timer,