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 "mmc-twl4030.h"
47 #define GPMC_CS0_BASE 0x60
48 #define GPMC_CS_SIZE 0x30
50 #define NAND_BLOCK_SIZE SZ_128K
52 static struct mtd_partition omap3beagle_nand_partitions
[] = {
53 /* All the partition sizes are listed in terms of NAND block size */
57 .size
= 4 * NAND_BLOCK_SIZE
,
58 .mask_flags
= MTD_WRITEABLE
, /* force read-only */
62 .offset
= MTDPART_OFS_APPEND
, /* Offset = 0x80000 */
63 .size
= 15 * NAND_BLOCK_SIZE
,
64 .mask_flags
= MTD_WRITEABLE
, /* force read-only */
68 .offset
= MTDPART_OFS_APPEND
, /* Offset = 0x260000 */
69 .size
= 1 * NAND_BLOCK_SIZE
,
73 .offset
= MTDPART_OFS_APPEND
, /* Offset = 0x280000 */
74 .size
= 32 * NAND_BLOCK_SIZE
,
77 .name
= "File System",
78 .offset
= MTDPART_OFS_APPEND
, /* Offset = 0x680000 */
79 .size
= MTDPART_SIZ_FULL
,
83 static struct omap_nand_platform_data omap3beagle_nand_data
= {
84 .options
= NAND_BUSWIDTH_16
,
85 .parts
= omap3beagle_nand_partitions
,
86 .nr_parts
= ARRAY_SIZE(omap3beagle_nand_partitions
),
87 .dma_channel
= -1, /* disable DMA in OMAP NAND driver */
92 static struct resource omap3beagle_nand_resource
= {
93 .flags
= IORESOURCE_MEM
,
96 static struct platform_device omap3beagle_nand_device
= {
100 .platform_data
= &omap3beagle_nand_data
,
103 .resource
= &omap3beagle_nand_resource
,
106 static struct omap_uart_config omap3_beagle_uart_config __initdata
= {
107 .enabled_uarts
= ((1 << 0) | (1 << 1) | (1 << 2)),
110 static struct twl4030_hsmmc_info mmc
[] = {
119 static struct gpio_led gpio_leds
[];
121 static int beagle_twl_gpio_setup(struct device
*dev
,
122 unsigned gpio
, unsigned ngpio
)
124 /* gpio + 0 is "mmc0_cd" (input/IRQ) */
125 omap_cfg_reg(AH8_34XX_GPIO29
);
126 mmc
[0].gpio_cd
= gpio
+ 0;
127 twl4030_mmc_init(mmc
);
129 /* REVISIT: need ehci-omap hooks for external VBUS
130 * power switch and overcurrent detect
133 gpio_request(gpio
+ 1, "EHCI_nOC");
134 gpio_direction_input(gpio
+ 1);
136 /* TWL4030_GPIO_MAX + 0 == ledA, EHCI nEN_USB_PWR (out, active low) */
137 gpio_request(gpio
+ TWL4030_GPIO_MAX
, "nEN_USB_PWR");
138 gpio_direction_output(gpio
+ TWL4030_GPIO_MAX
, 1);
140 /* TWL4030_GPIO_MAX + 1 == ledB, PMU_STAT (out, active low LED) */
141 gpio_leds
[2].gpio
= gpio
+ TWL4030_GPIO_MAX
+ 1;
146 static struct twl4030_gpio_platform_data beagle_gpio_data
= {
147 .gpio_base
= OMAP_MAX_GPIO_LINES
,
148 .irq_base
= TWL4030_GPIO_IRQ_BASE
,
149 .irq_end
= TWL4030_GPIO_IRQ_END
,
152 .pulldowns
= BIT(2) | BIT(6) | BIT(7) | BIT(8) | BIT(13)
153 | BIT(15) | BIT(16) | BIT(17),
154 .setup
= beagle_twl_gpio_setup
,
157 static struct twl4030_platform_data beagle_twldata
= {
158 .irq_base
= TWL4030_IRQ_BASE
,
159 .irq_end
= TWL4030_IRQ_END
,
161 /* platform_data for children goes here */
162 .gpio
= &beagle_gpio_data
,
165 static struct i2c_board_info __initdata beagle_i2c_boardinfo
[] = {
167 I2C_BOARD_INFO("twl4030", 0x48),
168 .flags
= I2C_CLIENT_WAKE
,
169 .irq
= INT_34XX_SYS_NIRQ
,
170 .platform_data
= &beagle_twldata
,
174 static int __init
omap3_beagle_i2c_init(void)
176 omap_register_i2c_bus(1, 2600, beagle_i2c_boardinfo
,
177 ARRAY_SIZE(beagle_i2c_boardinfo
));
178 #ifdef CONFIG_I2C2_OMAP_BEAGLE
179 omap_register_i2c_bus(2, 400, NULL
, 0);
181 omap_register_i2c_bus(3, 400, NULL
, 0);
185 static void __init
omap3_beagle_init_irq(void)
187 omap2_init_common_hw();
192 static struct platform_device omap3_beagle_lcd_device
= {
193 .name
= "omap3beagle_lcd",
197 static struct omap_lcd_config omap3_beagle_lcd_config __initdata
= {
198 .ctrl_name
= "internal",
201 static struct gpio_led gpio_leds
[] = {
203 .name
= "beagleboard::usr0",
204 .default_trigger
= "heartbeat",
208 .name
= "beagleboard::usr1",
209 .default_trigger
= "mmc0",
213 .name
= "beagleboard::pmu_stat",
214 .gpio
= -EINVAL
, /* gets replaced */
219 static struct gpio_led_platform_data gpio_led_info
= {
221 .num_leds
= ARRAY_SIZE(gpio_leds
),
224 static struct platform_device leds_gpio
= {
228 .platform_data
= &gpio_led_info
,
232 static struct gpio_keys_button gpio_buttons
[] = {
241 static struct gpio_keys_platform_data gpio_key_info
= {
242 .buttons
= gpio_buttons
,
243 .nbuttons
= ARRAY_SIZE(gpio_buttons
),
246 static struct platform_device keys_gpio
= {
250 .platform_data
= &gpio_key_info
,
254 static struct omap_board_config_kernel omap3_beagle_config
[] __initdata
= {
255 { OMAP_TAG_UART
, &omap3_beagle_uart_config
},
256 { OMAP_TAG_LCD
, &omap3_beagle_lcd_config
},
259 static struct platform_device
*omap3_beagle_devices
[] __initdata
= {
260 &omap3_beagle_lcd_device
,
265 static void __init
omap3beagle_flash_init(void)
268 u8 nandcs
= GPMC_CS_NUM
+ 1;
270 u32 gpmc_base_add
= OMAP34XX_GPMC_VIRT
;
272 /* find out the chip-select on which NAND exists */
273 while (cs
< GPMC_CS_NUM
) {
275 ret
= gpmc_cs_read_reg(cs
, GPMC_CS_CONFIG1
);
277 if ((ret
& 0xC00) == 0x800) {
278 printk(KERN_INFO
"Found NAND on CS%d\n", cs
);
279 if (nandcs
> GPMC_CS_NUM
)
285 if (nandcs
> GPMC_CS_NUM
) {
286 printk(KERN_INFO
"NAND: Unable to find configuration "
291 if (nandcs
< GPMC_CS_NUM
) {
292 omap3beagle_nand_data
.cs
= nandcs
;
293 omap3beagle_nand_data
.gpmc_cs_baseaddr
= (void *)
294 (gpmc_base_add
+ GPMC_CS0_BASE
+ nandcs
* GPMC_CS_SIZE
);
295 omap3beagle_nand_data
.gpmc_baseaddr
= (void *) (gpmc_base_add
);
297 printk(KERN_INFO
"Registering NAND on CS%d\n", nandcs
);
298 if (platform_device_register(&omap3beagle_nand_device
) < 0)
299 printk(KERN_ERR
"Unable to register NAND device\n");
303 static void __init
omap3_beagle_init(void)
305 omap3_beagle_i2c_init();
306 platform_add_devices(omap3_beagle_devices
,
307 ARRAY_SIZE(omap3_beagle_devices
));
308 omap_board_config
= omap3_beagle_config
;
309 omap_board_config_size
= ARRAY_SIZE(omap3_beagle_config
);
312 omap_cfg_reg(J25_34XX_GPIO170
);
313 gpio_request(170, "DVI_nPD");
314 /* REVISIT leave DVI powered down until it's needed ... */
315 gpio_direction_output(170, true);
317 omap3beagle_flash_init();
320 static void __init
omap3_beagle_map_io(void)
322 omap2_set_globals_343x();
323 omap2_map_common_io();
326 MACHINE_START(OMAP3_BEAGLE
, "OMAP3 Beagle Board")
327 /* Maintainer: Syed Mohammed Khasim - http://beagleboard.org */
328 .phys_io
= 0x48000000,
329 .io_pg_offst
= ((0xd8000000) >> 18) & 0xfffc,
330 .boot_params
= 0x80000100,
331 .map_io
= omap3_beagle_map_io
,
332 .init_irq
= omap3_beagle_init_irq
,
333 .init_machine
= omap3_beagle_init
,
334 .timer
= &omap_timer
,