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/i2c/twl4030.h>
33 #include <mach/hardware.h>
34 #include <asm/mach-types.h>
35 #include <asm/mach/arch.h>
36 #include <asm/mach/map.h>
37 #include <asm/mach/flash.h>
39 #include <mach/board.h>
40 #include <mach/common.h>
41 #include <mach/gpmc.h>
42 #include <mach/nand.h>
45 #include <mach/timer-gp.h>
47 #include "mmc-twl4030.h"
49 #define GPMC_CS0_BASE 0x60
50 #define GPMC_CS_SIZE 0x30
52 #define NAND_BLOCK_SIZE SZ_128K
54 static struct mtd_partition omap3beagle_nand_partitions
[] = {
55 /* All the partition sizes are listed in terms of NAND block size */
59 .size
= 4 * NAND_BLOCK_SIZE
,
60 .mask_flags
= MTD_WRITEABLE
, /* force read-only */
64 .offset
= MTDPART_OFS_APPEND
, /* Offset = 0x80000 */
65 .size
= 15 * NAND_BLOCK_SIZE
,
66 .mask_flags
= MTD_WRITEABLE
, /* force read-only */
70 .offset
= MTDPART_OFS_APPEND
, /* Offset = 0x260000 */
71 .size
= 1 * NAND_BLOCK_SIZE
,
75 .offset
= MTDPART_OFS_APPEND
, /* Offset = 0x280000 */
76 .size
= 32 * NAND_BLOCK_SIZE
,
79 .name
= "File System",
80 .offset
= MTDPART_OFS_APPEND
, /* Offset = 0x680000 */
81 .size
= MTDPART_SIZ_FULL
,
85 static struct omap_nand_platform_data omap3beagle_nand_data
= {
86 .options
= NAND_BUSWIDTH_16
,
87 .parts
= omap3beagle_nand_partitions
,
88 .nr_parts
= ARRAY_SIZE(omap3beagle_nand_partitions
),
89 .dma_channel
= -1, /* disable DMA in OMAP NAND driver */
94 static struct resource omap3beagle_nand_resource
= {
95 .flags
= IORESOURCE_MEM
,
98 static struct platform_device omap3beagle_nand_device
= {
102 .platform_data
= &omap3beagle_nand_data
,
105 .resource
= &omap3beagle_nand_resource
,
108 static struct omap_uart_config omap3_beagle_uart_config __initdata
= {
109 .enabled_uarts
= ((1 << 0) | (1 << 1) | (1 << 2)),
112 static struct twl4030_hsmmc_info mmc
[] = {
121 static struct gpio_led gpio_leds
[];
123 static int beagle_twl_gpio_setup(struct device
*dev
,
124 unsigned gpio
, unsigned ngpio
)
126 /* gpio + 0 is "mmc0_cd" (input/IRQ) */
127 omap_cfg_reg(AH8_34XX_GPIO29
);
128 mmc
[0].gpio_cd
= gpio
+ 0;
129 twl4030_mmc_init(mmc
);
131 /* REVISIT: need ehci-omap hooks for external VBUS
132 * power switch and overcurrent detect
135 gpio_request(gpio
+ 1, "EHCI_nOC");
136 gpio_direction_input(gpio
+ 1);
138 /* TWL4030_GPIO_MAX + 0 == ledA, EHCI nEN_USB_PWR (out, active low) */
139 gpio_request(gpio
+ TWL4030_GPIO_MAX
, "nEN_USB_PWR");
140 gpio_direction_output(gpio
+ TWL4030_GPIO_MAX
, 1);
142 /* TWL4030_GPIO_MAX + 1 == ledB, PMU_STAT (out, active low LED) */
143 gpio_leds
[2].gpio
= gpio
+ TWL4030_GPIO_MAX
+ 1;
148 static struct twl4030_gpio_platform_data beagle_gpio_data
= {
149 .gpio_base
= OMAP_MAX_GPIO_LINES
,
150 .irq_base
= TWL4030_GPIO_IRQ_BASE
,
151 .irq_end
= TWL4030_GPIO_IRQ_END
,
154 .pulldowns
= BIT(2) | BIT(6) | BIT(7) | BIT(8) | BIT(13)
155 | BIT(15) | BIT(16) | BIT(17),
156 .setup
= beagle_twl_gpio_setup
,
159 static struct twl4030_platform_data beagle_twldata
= {
160 .irq_base
= TWL4030_IRQ_BASE
,
161 .irq_end
= TWL4030_IRQ_END
,
163 /* platform_data for children goes here */
164 .gpio
= &beagle_gpio_data
,
167 static struct i2c_board_info __initdata beagle_i2c_boardinfo
[] = {
169 I2C_BOARD_INFO("twl4030", 0x48),
170 .flags
= I2C_CLIENT_WAKE
,
171 .irq
= INT_34XX_SYS_NIRQ
,
172 .platform_data
= &beagle_twldata
,
176 static int __init
omap3_beagle_i2c_init(void)
178 omap_register_i2c_bus(1, 2600, beagle_i2c_boardinfo
,
179 ARRAY_SIZE(beagle_i2c_boardinfo
));
180 /* Bus 3 is attached to the DVI port where devices like the pico DLP
181 * projector don't work reliably with 400kHz */
182 omap_register_i2c_bus(3, 100, NULL
, 0);
186 static void __init
omap3_beagle_init_irq(void)
188 omap2_init_common_hw(NULL
);
190 #ifdef CONFIG_OMAP_32K_TIMER
191 omap2_gp_clockevent_set_gptimer(12);
196 static struct platform_device omap3_beagle_lcd_device
= {
197 .name
= "omap3beagle_lcd",
201 static struct omap_lcd_config omap3_beagle_lcd_config __initdata
= {
202 .ctrl_name
= "internal",
205 static struct gpio_led gpio_leds
[] = {
207 .name
= "beagleboard::usr0",
208 .default_trigger
= "heartbeat",
212 .name
= "beagleboard::usr1",
213 .default_trigger
= "mmc0",
217 .name
= "beagleboard::pmu_stat",
218 .gpio
= -EINVAL
, /* gets replaced */
223 static struct gpio_led_platform_data gpio_led_info
= {
225 .num_leds
= ARRAY_SIZE(gpio_leds
),
228 static struct platform_device leds_gpio
= {
232 .platform_data
= &gpio_led_info
,
236 static struct gpio_keys_button gpio_buttons
[] = {
245 static struct gpio_keys_platform_data gpio_key_info
= {
246 .buttons
= gpio_buttons
,
247 .nbuttons
= ARRAY_SIZE(gpio_buttons
),
250 static struct platform_device keys_gpio
= {
254 .platform_data
= &gpio_key_info
,
258 static struct omap_board_config_kernel omap3_beagle_config
[] __initdata
= {
259 { OMAP_TAG_UART
, &omap3_beagle_uart_config
},
260 { OMAP_TAG_LCD
, &omap3_beagle_lcd_config
},
263 static struct platform_device
*omap3_beagle_devices
[] __initdata
= {
264 &omap3_beagle_lcd_device
,
269 static void __init
omap3beagle_flash_init(void)
272 u8 nandcs
= GPMC_CS_NUM
+ 1;
274 u32 gpmc_base_add
= OMAP34XX_GPMC_VIRT
;
276 /* find out the chip-select on which NAND exists */
277 while (cs
< GPMC_CS_NUM
) {
279 ret
= gpmc_cs_read_reg(cs
, GPMC_CS_CONFIG1
);
281 if ((ret
& 0xC00) == 0x800) {
282 printk(KERN_INFO
"Found NAND on CS%d\n", cs
);
283 if (nandcs
> GPMC_CS_NUM
)
289 if (nandcs
> GPMC_CS_NUM
) {
290 printk(KERN_INFO
"NAND: Unable to find configuration "
295 if (nandcs
< GPMC_CS_NUM
) {
296 omap3beagle_nand_data
.cs
= nandcs
;
297 omap3beagle_nand_data
.gpmc_cs_baseaddr
= (void *)
298 (gpmc_base_add
+ GPMC_CS0_BASE
+ nandcs
* GPMC_CS_SIZE
);
299 omap3beagle_nand_data
.gpmc_baseaddr
= (void *) (gpmc_base_add
);
301 printk(KERN_INFO
"Registering NAND on CS%d\n", nandcs
);
302 if (platform_device_register(&omap3beagle_nand_device
) < 0)
303 printk(KERN_ERR
"Unable to register NAND device\n");
307 static void __init
omap3_beagle_init(void)
309 omap3_beagle_i2c_init();
310 platform_add_devices(omap3_beagle_devices
,
311 ARRAY_SIZE(omap3_beagle_devices
));
312 omap_board_config
= omap3_beagle_config
;
313 omap_board_config_size
= ARRAY_SIZE(omap3_beagle_config
);
316 omap_cfg_reg(J25_34XX_GPIO170
);
317 gpio_request(170, "DVI_nPD");
318 /* REVISIT leave DVI powered down until it's needed ... */
319 gpio_direction_output(170, true);
322 omap3beagle_flash_init();
325 static void __init
omap3_beagle_map_io(void)
327 omap2_set_globals_343x();
328 omap2_map_common_io();
331 MACHINE_START(OMAP3_BEAGLE
, "OMAP3 Beagle Board")
332 /* Maintainer: Syed Mohammed Khasim - http://beagleboard.org */
333 .phys_io
= 0x48000000,
334 .io_pg_offst
= ((0xd8000000) >> 18) & 0xfffc,
335 .boot_params
= 0x80000100,
336 .map_io
= omap3_beagle_map_io
,
337 .init_irq
= omap3_beagle_init_irq
,
338 .init_machine
= omap3_beagle_init
,
339 .timer
= &omap_timer
,