2 * linux/arch/arm/mach-omap2/board-2430sdp.c
4 * Copyright (C) 2006 Texas Instruments
6 * Modified from mach-omap2/board-generic.c
8 * Initial Code : Based on a patch from Komal Shah and Richard Woodruff
9 * Updated the Code for 2430 SDP : Syed Mohammed Khasim
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License version 2 as
13 * published by the Free Software Foundation.
16 #include <linux/kernel.h>
17 #include <linux/init.h>
18 #include <linux/platform_device.h>
19 #include <linux/mtd/mtd.h>
20 #include <linux/mtd/partitions.h>
21 #include <linux/delay.h>
22 #include <linux/input.h>
23 #include <linux/i2c/twl4030.h>
24 #include <linux/err.h>
25 #include <linux/clk.h>
26 #include <linux/spi/spi.h>
27 #include <linux/spi/ads7846.h>
28 #include <linux/i2c/twl4030-rtc.h>
30 #include <mach/hardware.h>
31 #include <asm/mach-types.h>
32 #include <asm/mach/arch.h>
33 #include <asm/mach/map.h>
34 #include <asm/mach/flash.h>
36 #include <mach/gpio.h>
38 #include <mach/board.h>
39 #include <mach/usb-musb.h>
40 #include <mach/hsmmc.h>
41 #include <mach/common.h>
42 #include <mach/keypad.h>
43 #include <mach/gpmc.h>
44 #include <mach/mcspi.h>
48 #define SDP2430_FLASH_CS 0
49 #define SDP2430_SMC91X_CS 5
51 /* GPIO used for TSC2046 (touchscreen)
53 * Also note that the tsc2046 is the same silicon as the ads7846, so
54 * that driver is used for the touchscreen. */
57 #define TWL4030_MSECURE_GPIO 118
58 #define SECONDARY_LCD_GPIO 147
60 static struct mtd_partition sdp2430_partitions[] = {
61 /* bootloader (U-Boot, etc) in first sector */
66 .mask_flags = MTD_WRITEABLE, /* force read-only */
68 /* bootloader params in the next sector */
71 .offset = MTDPART_OFS_APPEND,
78 .offset = MTDPART_OFS_APPEND,
85 .offset = MTDPART_OFS_APPEND,
86 .size = MTDPART_SIZ_FULL,
91 static struct flash_platform_data sdp2430_flash_data = {
92 .map_name = "cfi_probe",
94 .parts = sdp2430_partitions,
95 .nr_parts = ARRAY_SIZE(sdp2430_partitions),
98 static struct resource sdp2430_flash_resource = {
99 .start = SDP2430_CS0_BASE,
100 .end = SDP2430_CS0_BASE + SZ_64M - 1,
101 .flags = IORESOURCE_MEM,
104 static struct platform_device sdp2430_flash_device = {
108 .platform_data = &sdp2430_flash_data,
111 .resource = &sdp2430_flash_resource,
114 static struct resource sdp2430_smc91x_resources[] = {
116 .start = SDP2430_CS0_BASE,
117 .end = SDP2430_CS0_BASE + SZ_64M - 1,
118 .flags = IORESOURCE_MEM,
121 .start = OMAP_GPIO_IRQ(OMAP24XX_ETHR_GPIO_IRQ),
122 .end = OMAP_GPIO_IRQ(OMAP24XX_ETHR_GPIO_IRQ),
123 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWLEVEL,
127 static struct platform_device sdp2430_lcd_device = {
128 .name = "sdp2430_lcd",
132 static struct platform_device sdp2430_smc91x_device = {
135 .num_resources = ARRAY_SIZE(sdp2430_smc91x_resources),
136 .resource = sdp2430_smc91x_resources,
140 * Key mapping for 2430 SDP board
143 static int sdp2430_keymap[] = {
145 KEY(0, 1, KEY_RIGHT),
154 KEY(2, 0, KEY_ENTER),
177 static struct omap_kp_platform_data sdp2430_kp_data = {
180 .keymap = sdp2430_keymap,
181 .keymapsize = ARRAY_SIZE(sdp2430_keymap),
183 .irq = TWL4030_MODIRQ_KEYPAD,
186 static struct platform_device sdp2430_kp_device = {
187 .name = "omap_twl4030keypad",
190 .platform_data = &sdp2430_kp_data,
194 static int twl4030_rtc_init(void)
198 ret = omap_request_gpio(TWL4030_MSECURE_GPIO);
200 printk(KERN_ERR "twl4030_rtc_init: can't reserve GPIO:%d !\n",
201 TWL4030_MSECURE_GPIO);
205 * TWL4030 will be in secure mode if msecure line from OMAP is low.
206 * Make msecure line high in order to change the TWL4030 RTC time
207 * and calender registers.
209 omap_set_gpio_direction(TWL4030_MSECURE_GPIO, 0); /*dir out */
210 omap_set_gpio_dataout(TWL4030_MSECURE_GPIO, 1);
215 static void twl4030_rtc_exit(void)
217 omap_free_gpio(TWL4030_MSECURE_GPIO);
220 static struct twl4030rtc_platform_data sdp2430_twl4030rtc_data = {
221 .init = &twl4030_rtc_init,
222 .exit = &twl4030_rtc_exit,
225 static struct platform_device sdp2430_twl4030rtc_device = {
226 .name = "twl4030_rtc",
229 .platform_data = &sdp2430_twl4030rtc_data,
233 static struct platform_device *sdp2430_devices[] __initdata = {
234 &sdp2430_smc91x_device,
235 &sdp2430_flash_device,
238 &sdp2430_twl4030rtc_device,
241 static void ads7846_dev_init(void)
243 if (omap_request_gpio(TS_GPIO) < 0)
244 printk(KERN_ERR "can't get ads746 pen down GPIO\n");
246 omap_set_gpio_direction(TS_GPIO, 1);
248 omap_set_gpio_debounce(TS_GPIO, 1);
249 omap_set_gpio_debounce_time(TS_GPIO, 0xa);
252 static int ads7846_get_pendown_state(void)
254 return !omap_get_gpio_datain(TS_GPIO);
257 static struct ads7846_platform_data tsc2046_config __initdata = {
258 .get_pendown_state = ads7846_get_pendown_state,
262 static struct omap2_mcspi_device_config tsc2046_mcspi_config = {
264 .single_channel = 0, /* 0: slave, 1: master */
267 static struct omap_lcd_config sdp2430_lcd_config __initdata = {
268 .ctrl_name = "internal",
271 static struct spi_board_info sdp2430_spi_board_info[] __initdata = {
274 * TSC2046 operates at a max freqency of 2MHz, so
275 * operate slightly below at 1.5MHz
277 .modalias = "ads7846",
280 .max_speed_hz = 1500000,
281 .controller_data = &tsc2046_mcspi_config,
282 .irq = OMAP_GPIO_IRQ(TS_GPIO),
283 .platform_data = &tsc2046_config,
287 static inline void __init sdp2430_init_smc91x(void)
290 unsigned long cs_mem_base;
292 struct clk *gpmc_fck;
294 eth_cs = SDP2430_SMC91X_CS;
296 gpmc_fck = clk_get(NULL, "gpmc_fck"); /* Always on ENABLE_ON_INIT */
297 if (IS_ERR(gpmc_fck)) {
302 clk_enable(gpmc_fck);
303 rate = clk_get_rate(gpmc_fck);
305 /* Make sure CS1 timings are correct, for 2430 always muxed */
306 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG1, 0x00011200);
308 if (rate >= 160000000) {
309 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f01);
310 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080803);
311 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1c0b1c0a);
312 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x041f1F1F);
313 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000004C4);
314 } else if (rate >= 130000000) {
315 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f00);
316 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080802);
317 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1C091C09);
318 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x041f1F1F);
319 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000004C4);
320 } else { /* rate = 100000000 */
321 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f00);
322 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080802);
323 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1C091C09);
324 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x031A1F1F);
325 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000003C2);
328 if (gpmc_cs_request(eth_cs, SZ_16M, &cs_mem_base) < 0) {
329 printk(KERN_ERR "Failed to request GPMC mem for smc91x\n");
333 sdp2430_smc91x_resources[0].start = cs_mem_base + 0x300;
334 sdp2430_smc91x_resources[0].end = cs_mem_base + 0x30f;
337 if (omap_request_gpio(OMAP24XX_ETHR_GPIO_IRQ) < 0) {
338 printk(KERN_ERR "Failed to request GPIO%d for smc91x IRQ\n",
339 OMAP24XX_ETHR_GPIO_IRQ);
340 gpmc_cs_free(eth_cs);
343 omap_set_gpio_direction(OMAP24XX_ETHR_GPIO_IRQ, 1);
346 clk_disable(gpmc_fck);
350 static void __init omap_2430sdp_init_irq(void)
352 omap2_init_common_hw(NULL);
355 sdp2430_init_smc91x();
358 static struct omap_uart_config sdp2430_uart_config __initdata = {
359 .enabled_uarts = ((1 << 0) | (1 << 1) | (1 << 2)),
363 struct omap_serial_console_config sdp2430_serial_console_config __initdata = {
365 .console_speed = 115200,
368 static struct omap_board_config_kernel sdp2430_config[] __initdata = {
369 {OMAP_TAG_UART, &sdp2430_uart_config},
370 {OMAP_TAG_LCD, &sdp2430_lcd_config},
371 {OMAP_TAG_SERIAL_CONSOLE, &sdp2430_serial_console_config},
374 static int __init omap2430_i2c_init(void)
377 * Registering bus 2 first to avoid twl4030 misbehaving as 2430SDP
378 * has twl4030 on bus 2
380 omap_register_i2c_bus(2, 2600, NULL, 0);
381 omap_register_i2c_bus(1, 400, NULL, 0);
385 static void __init omap_2430sdp_init(void)
389 platform_add_devices(sdp2430_devices, ARRAY_SIZE(sdp2430_devices));
390 omap_board_config = sdp2430_config;
391 omap_board_config_size = ARRAY_SIZE(sdp2430_config);
394 sdp2430_flash_init();
397 spi_register_board_info(sdp2430_spi_board_info,
398 ARRAY_SIZE(sdp2430_spi_board_info));
402 /* turn off secondary LCD backlight */
403 omap_set_gpio_direction(SECONDARY_LCD_GPIO, 0);
404 omap_set_gpio_dataout(SECONDARY_LCD_GPIO, 0);
407 static void __init omap_2430sdp_map_io(void)
409 omap2_set_globals_243x();
410 omap2_map_common_io();
413 MACHINE_START(OMAP_2430SDP, "OMAP2430 sdp2430 board")
414 /* Maintainer: Syed Khasim - Texas Instruments Inc */
415 .phys_io = 0x48000000,
416 .io_pg_offst = ((0xd8000000) >> 18) & 0xfffc,
417 .boot_params = 0x80000100,
418 .map_io = omap_2430sdp_map_io,
419 .init_irq = omap_2430sdp_init_irq,
420 .init_machine = omap_2430sdp_init,
421 .timer = &omap_timer,