2 * linux/arch/arm/mach-omap2/board-omap3beagle.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>
22 #include <linux/leds.h>
23 #include <linux/gpio.h>
24 #include <linux/input.h>
25 #include <linux/gpio_keys.h>
27 #include <linux/mtd/mtd.h>
28 #include <linux/mtd/partitions.h>
29 #include <linux/mtd/nand.h>
31 #include <linux/regulator/machine.h>
32 #include <linux/i2c/twl4030.h>
34 #include <mach/hardware.h>
35 #include <asm/mach-types.h>
36 #include <asm/mach/arch.h>
37 #include <asm/mach/map.h>
38 #include <asm/mach/flash.h>
40 #include <mach/board.h>
41 #include <mach/common.h>
42 #include <mach/gpmc.h>
43 #include <mach/nand.h>
46 #include <mach/timer-gp.h>
48 #include "mmc-twl4030.h"
50 #define GPMC_CS0_BASE 0x60
51 #define GPMC_CS_SIZE 0x30
53 #define NAND_BLOCK_SIZE SZ_128K
55 static struct mtd_partition omap3beagle_nand_partitions[] = {
56 /* All the partition sizes are listed in terms of NAND block size */
60 .size = 4 * NAND_BLOCK_SIZE,
61 .mask_flags = MTD_WRITEABLE, /* force read-only */
65 .offset = MTDPART_OFS_APPEND, /* Offset = 0x80000 */
66 .size = 15 * NAND_BLOCK_SIZE,
67 .mask_flags = MTD_WRITEABLE, /* force read-only */
71 .offset = MTDPART_OFS_APPEND, /* Offset = 0x260000 */
72 .size = 1 * NAND_BLOCK_SIZE,
76 .offset = MTDPART_OFS_APPEND, /* Offset = 0x280000 */
77 .size = 32 * NAND_BLOCK_SIZE,
80 .name = "File System",
81 .offset = MTDPART_OFS_APPEND, /* Offset = 0x680000 */
82 .size = MTDPART_SIZ_FULL,
86 static struct omap_nand_platform_data omap3beagle_nand_data = {
87 .options = NAND_BUSWIDTH_16,
88 .parts = omap3beagle_nand_partitions,
89 .nr_parts = ARRAY_SIZE(omap3beagle_nand_partitions),
90 .dma_channel = -1, /* disable DMA in OMAP NAND driver */
95 static struct resource omap3beagle_nand_resource = {
96 .flags = IORESOURCE_MEM,
99 static struct platform_device omap3beagle_nand_device = {
100 .name = "omap2-nand",
103 .platform_data = &omap3beagle_nand_data,
106 .resource = &omap3beagle_nand_resource,
109 #include "sdram-micron-mt46h32m32lf-6.h"
111 static struct twl4030_hsmmc_info mmc[] = {
120 static struct platform_device omap3_beagle_lcd_device = {
121 .name = "omap3beagle_lcd",
125 static struct omap_lcd_config omap3_beagle_lcd_config __initdata = {
126 .ctrl_name = "internal",
129 static struct regulator_consumer_supply beagle_vmmc1_supply = {
133 static struct regulator_consumer_supply beagle_vsim_supply = {
134 .supply = "vmmc_aux",
137 static struct gpio_led gpio_leds[];
139 static int beagle_twl_gpio_setup(struct device *dev,
140 unsigned gpio, unsigned ngpio)
142 if (system_rev >= 0x20 && system_rev <= 0x34301000) {
143 omap_cfg_reg(AG9_34XX_GPIO23);
146 omap_cfg_reg(AH8_34XX_GPIO29);
148 /* gpio + 0 is "mmc0_cd" (input/IRQ) */
149 mmc[0].gpio_cd = gpio + 0;
150 twl4030_mmc_init(mmc);
152 /* link regulators to MMC adapters */
153 beagle_vmmc1_supply.dev = mmc[0].dev;
154 beagle_vsim_supply.dev = mmc[0].dev;
156 /* REVISIT: need ehci-omap hooks for external VBUS
157 * power switch and overcurrent detect
160 gpio_request(gpio + 1, "EHCI_nOC");
161 gpio_direction_input(gpio + 1);
163 /* TWL4030_GPIO_MAX + 0 == ledA, EHCI nEN_USB_PWR (out, active low) */
164 gpio_request(gpio + TWL4030_GPIO_MAX, "nEN_USB_PWR");
165 gpio_direction_output(gpio + TWL4030_GPIO_MAX, 0);
167 /* TWL4030_GPIO_MAX + 1 == ledB, PMU_STAT (out, active low LED) */
168 gpio_leds[2].gpio = gpio + TWL4030_GPIO_MAX + 1;
173 static struct twl4030_gpio_platform_data beagle_gpio_data = {
174 .gpio_base = OMAP_MAX_GPIO_LINES,
175 .irq_base = TWL4030_GPIO_IRQ_BASE,
176 .irq_end = TWL4030_GPIO_IRQ_END,
179 .pulldowns = BIT(2) | BIT(6) | BIT(7) | BIT(8) | BIT(13)
180 | BIT(15) | BIT(16) | BIT(17),
181 .setup = beagle_twl_gpio_setup,
184 static struct regulator_consumer_supply beagle_vdac_supply = {
186 .dev = &omap3_beagle_lcd_device.dev,
189 static struct regulator_consumer_supply beagle_vdvi_supply = {
191 .dev = &omap3_beagle_lcd_device.dev,
194 /* VMMC1 for MMC1 pins CMD, CLK, DAT0..DAT3 (20 mA, plus card == max 220 mA) */
195 static struct regulator_init_data beagle_vmmc1 = {
199 .valid_modes_mask = REGULATOR_MODE_NORMAL
200 | REGULATOR_MODE_STANDBY,
201 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE
202 | REGULATOR_CHANGE_MODE
203 | REGULATOR_CHANGE_STATUS,
205 .num_consumer_supplies = 1,
206 .consumer_supplies = &beagle_vmmc1_supply,
209 /* VSIM for MMC1 pins DAT4..DAT7 (2 mA, plus card == max 50 mA) */
210 static struct regulator_init_data beagle_vsim = {
214 .valid_modes_mask = REGULATOR_MODE_NORMAL
215 | REGULATOR_MODE_STANDBY,
216 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE
217 | REGULATOR_CHANGE_MODE
218 | REGULATOR_CHANGE_STATUS,
220 .num_consumer_supplies = 1,
221 .consumer_supplies = &beagle_vsim_supply,
224 /* VDAC for DSS driving S-Video (8 mA unloaded, max 65 mA) */
225 static struct regulator_init_data beagle_vdac = {
229 .valid_modes_mask = REGULATOR_MODE_NORMAL
230 | REGULATOR_MODE_STANDBY,
231 .valid_ops_mask = REGULATOR_CHANGE_MODE
232 | REGULATOR_CHANGE_STATUS,
234 .num_consumer_supplies = 1,
235 .consumer_supplies = &beagle_vdac_supply,
238 /* VPLL2 for digital video outputs */
239 static struct regulator_init_data beagle_vpll2 = {
244 .valid_modes_mask = REGULATOR_MODE_NORMAL
245 | REGULATOR_MODE_STANDBY,
246 .valid_ops_mask = REGULATOR_CHANGE_MODE
247 | REGULATOR_CHANGE_STATUS,
249 .num_consumer_supplies = 1,
250 .consumer_supplies = &beagle_vdvi_supply,
253 static struct twl4030_usb_data beagle_usb_data = {
254 .usb_mode = T2_USB_MODE_ULPI,
257 static struct twl4030_platform_data beagle_twldata = {
258 .irq_base = TWL4030_IRQ_BASE,
259 .irq_end = TWL4030_IRQ_END,
261 /* platform_data for children goes here */
262 .usb = &beagle_usb_data,
263 .gpio = &beagle_gpio_data,
264 .vmmc1 = &beagle_vmmc1,
265 .vsim = &beagle_vsim,
266 .vdac = &beagle_vdac,
267 .vpll2 = &beagle_vpll2,
270 static struct i2c_board_info __initdata beagle_i2c_boardinfo[] = {
272 I2C_BOARD_INFO("twl4030", 0x48),
273 .flags = I2C_CLIENT_WAKE,
274 .irq = INT_34XX_SYS_NIRQ,
275 .platform_data = &beagle_twldata,
279 static int __init omap3_beagle_i2c_init(void)
281 omap_register_i2c_bus(1, 2600, beagle_i2c_boardinfo,
282 ARRAY_SIZE(beagle_i2c_boardinfo));
283 /* Bus 3 is attached to the DVI port where devices like the pico DLP
284 * projector don't work reliably with 400kHz */
285 omap_register_i2c_bus(3, 100, NULL, 0);
289 static struct gpio_led gpio_leds[] = {
291 .name = "beagleboard::usr0",
292 .default_trigger = "heartbeat",
296 .name = "beagleboard::usr1",
297 .default_trigger = "mmc0",
301 .name = "beagleboard::pmu_stat",
302 .gpio = -EINVAL, /* gets replaced */
307 static struct gpio_led_platform_data gpio_led_info = {
309 .num_leds = ARRAY_SIZE(gpio_leds),
312 static struct platform_device leds_gpio = {
316 .platform_data = &gpio_led_info,
320 static struct gpio_keys_button gpio_buttons[] = {
329 static struct gpio_keys_platform_data gpio_key_info = {
330 .buttons = gpio_buttons,
331 .nbuttons = ARRAY_SIZE(gpio_buttons),
334 static struct platform_device keys_gpio = {
338 .platform_data = &gpio_key_info,
342 static struct omap_board_config_kernel omap3_beagle_config[] __initdata = {
343 { OMAP_TAG_LCD, &omap3_beagle_lcd_config },
346 static void __init omap3_beagle_init_irq(void)
348 omap_board_config = omap3_beagle_config;
349 omap_board_config_size = ARRAY_SIZE(omap3_beagle_config);
350 omap2_init_common_hw(mt46h32m32lf6_sdrc_params,
351 mt46h32m32lf6_sdrc_params);
353 #ifdef CONFIG_OMAP_32K_TIMER
354 omap2_gp_clockevent_set_gptimer(12);
359 static struct platform_device *omap3_beagle_devices[] __initdata = {
360 &omap3_beagle_lcd_device,
365 static void __init omap3beagle_flash_init(void)
368 u8 nandcs = GPMC_CS_NUM + 1;
370 u32 gpmc_base_add = OMAP34XX_GPMC_VIRT;
372 /* find out the chip-select on which NAND exists */
373 while (cs < GPMC_CS_NUM) {
375 ret = gpmc_cs_read_reg(cs, GPMC_CS_CONFIG1);
377 if ((ret & 0xC00) == 0x800) {
378 printk(KERN_INFO "Found NAND on CS%d\n", cs);
379 if (nandcs > GPMC_CS_NUM)
385 if (nandcs > GPMC_CS_NUM) {
386 printk(KERN_INFO "NAND: Unable to find configuration "
391 if (nandcs < GPMC_CS_NUM) {
392 omap3beagle_nand_data.cs = nandcs;
393 omap3beagle_nand_data.gpmc_cs_baseaddr = (void *)
394 (gpmc_base_add + GPMC_CS0_BASE + nandcs * GPMC_CS_SIZE);
395 omap3beagle_nand_data.gpmc_baseaddr = (void *) (gpmc_base_add);
397 printk(KERN_INFO "Registering NAND on CS%d\n", nandcs);
398 if (platform_device_register(&omap3beagle_nand_device) < 0)
399 printk(KERN_ERR "Unable to register NAND device\n");
403 static void __init omap3_beagle_init(void)
405 omap3_beagle_i2c_init();
406 platform_add_devices(omap3_beagle_devices,
407 ARRAY_SIZE(omap3_beagle_devices));
410 omap_cfg_reg(J25_34XX_GPIO170);
411 gpio_request(170, "DVI_nPD");
412 /* REVISIT leave DVI powered down until it's needed ... */
413 gpio_direction_output(170, true);
416 omap3beagle_flash_init();
418 /* Ensure SDRC pins are mux'd for self-refresh */
419 omap_cfg_reg(H16_34XX_SDRC_CKE0);
420 omap_cfg_reg(H17_34XX_SDRC_CKE1);
423 static void __init omap3_beagle_map_io(void)
425 omap2_set_globals_343x();
426 omap2_map_common_io();
429 MACHINE_START(OMAP3_BEAGLE, "OMAP3 Beagle Board")
430 /* Maintainer: Syed Mohammed Khasim - http://beagleboard.org */
431 .phys_io = 0x48000000,
432 .io_pg_offst = ((0xd8000000) >> 18) & 0xfffc,
433 .boot_params = 0x80000100,
434 .map_io = omap3_beagle_map_io,
435 .init_irq = omap3_beagle_init_irq,
436 .init_machine = omap3_beagle_init,
437 .timer = &omap_timer,