1 /* linux/arch/arm/mach-s3c2440/mach-mini2440.c
3 * Copyright (c) 2008 Ramax Lo <ramaxlo@gmail.com>
4 * Based on mach-anubis.c by Ben Dooks <ben@simtec.co.uk>
5 * and modifications by SBZ <sbz@spgui.org> and
6 * Weibing <http://weibing.blogbus.com> and
7 * Michel Pollet <buserror@gmail.com>
9 * For product information, visit http://code.google.com/p/mini2440/
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/types.h>
18 #include <linux/interrupt.h>
19 #include <linux/list.h>
20 #include <linux/timer.h>
21 #include <linux/init.h>
22 #include <linux/gpio.h>
23 #include <linux/input.h>
25 #include <linux/serial_core.h>
26 #include <linux/dm9000.h>
27 #include <linux/i2c/at24.h>
28 #include <linux/platform_device.h>
29 #include <linux/gpio_keys.h>
30 #include <linux/i2c.h>
31 #include <linux/mmc/host.h>
33 #include <asm/mach/arch.h>
34 #include <asm/mach/map.h>
36 #include <mach/hardware.h>
38 #include <asm/mach-types.h>
40 #include <plat/regs-serial.h>
41 #include <mach/regs-gpio.h>
42 #include <linux/platform_data/leds-s3c24xx.h>
43 #include <mach/regs-lcd.h>
44 #include <mach/irqs.h>
45 #include <linux/platform_data/mtd-nand-s3c2410.h>
46 #include <linux/platform_data/i2c-s3c2410.h>
47 #include <linux/platform_data/mmc-s3cmci.h>
48 #include <linux/platform_data/usb-s3c2410_udc.h>
50 #include <linux/mtd/mtd.h>
51 #include <linux/mtd/nand.h>
52 #include <linux/mtd/nand_ecc.h>
53 #include <linux/mtd/partitions.h>
55 #include <plat/gpio-cfg.h>
56 #include <plat/clock.h>
57 #include <plat/devs.h>
60 #include <sound/s3c24xx_uda134x.h>
64 #define MACH_MINI2440_DM9K_BASE (S3C2410_CS4 + 0x300)
66 static struct map_desc mini2440_iodesc
[] __initdata
= {
67 /* nothing to declare, move along */
70 #define UCON S3C2410_UCON_DEFAULT
71 #define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
72 #define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
75 static struct s3c2410_uartcfg mini2440_uartcfgs
[] __initdata
= {
99 /* USB device UDC support */
101 static struct s3c2410_udc_mach_info mini2440_udc_cfg __initdata
= {
102 .pullup_pin
= S3C2410_GPC(5),
106 /* LCD timing and setup */
109 * This macro simplifies the table bellow
111 #define _LCD_DECLARE(_clock,_xres,margin_left,margin_right,hsync, \
112 _yres,margin_top,margin_bottom,vsync, refresh) \
117 .left_margin = margin_left, \
118 .right_margin = margin_right, \
119 .upper_margin = margin_top, \
120 .lower_margin = margin_bottom, \
121 .hsync_len = hsync, \
122 .vsync_len = vsync, \
123 .pixclock = ((_clock*100000000000LL) / \
125 (hsync + margin_left + _xres + margin_right) * \
126 (vsync + margin_top + _yres + margin_bottom))), \
128 .type = (S3C2410_LCDCON1_TFT16BPP |\
131 static struct s3c2410fb_display mini2440_lcd_cfg
[] __initdata
= {
132 [0] = { /* mini2440 + 3.5" TFT + touchscreen */
134 7, /* The 3.5 is quite fast */
135 240, 21, 38, 6, /* x timing */
136 320, 4, 4, 2, /* y timing */
137 60), /* refresh rate */
138 .lcdcon5
= (S3C2410_LCDCON5_FRM565
|
139 S3C2410_LCDCON5_INVVLINE
|
140 S3C2410_LCDCON5_INVVFRAME
|
141 S3C2410_LCDCON5_INVVDEN
|
142 S3C2410_LCDCON5_PWREN
),
144 [1] = { /* mini2440 + 7" TFT + touchscreen */
146 10, /* the 7" runs slower */
147 800, 40, 40, 48, /* x timing */
148 480, 29, 3, 3, /* y timing */
149 50), /* refresh rate */
150 .lcdcon5
= (S3C2410_LCDCON5_FRM565
|
151 S3C2410_LCDCON5_INVVLINE
|
152 S3C2410_LCDCON5_INVVFRAME
|
153 S3C2410_LCDCON5_PWREN
),
155 /* The VGA shield can outout at several resolutions. All share
156 * the same timings, however, anything smaller than 1024x768
157 * will only be displayed in the top left corner of a 1024x768
158 * XGA output unless you add optional dip switches to the shield.
159 * Therefore timings for other resolutions have been omitted here.
164 1024, 1, 2, 2, /* y timing */
165 768, 200, 16, 16, /* x timing */
166 24), /* refresh rate, maximum stable,
167 tested with the FPGA shield */
168 .lcdcon5
= (S3C2410_LCDCON5_FRM565
|
169 S3C2410_LCDCON5_HWSWP
),
171 /* mini2440 + 3.5" TFT (LCD-W35i, LQ035Q1DG06 type) + touchscreen*/
176 /* xres, margin_right, margin_left, hsync */
178 /* yres, margin_top, margin_bottom, vsync */
182 .lcdcon5
= (S3C2410_LCDCON5_FRM565
|
183 S3C2410_LCDCON5_INVVDEN
|
184 S3C2410_LCDCON5_INVVFRAME
|
185 S3C2410_LCDCON5_INVVLINE
|
186 S3C2410_LCDCON5_INVVCLK
|
187 S3C2410_LCDCON5_HWSWP
),
191 /* todo - put into gpio header */
193 #define S3C2410_GPCCON_MASK(x) (3 << ((x) * 2))
194 #define S3C2410_GPDCON_MASK(x) (3 << ((x) * 2))
196 static struct s3c2410fb_mach_info mini2440_fb_info __initdata
= {
197 .displays
= &mini2440_lcd_cfg
[0], /* not constant! see init */
199 .default_display
= 0,
201 /* Enable VD[2..7], VD[10..15], VD[18..23] and VCLK, syncs, VDEN
202 * and disable the pull down resistors on pins we are using for LCD
205 .gpcup
= (0xf << 1) | (0x3f << 10),
207 .gpccon
= (S3C2410_GPC1_VCLK
| S3C2410_GPC2_VLINE
|
208 S3C2410_GPC3_VFRAME
| S3C2410_GPC4_VM
|
209 S3C2410_GPC10_VD2
| S3C2410_GPC11_VD3
|
210 S3C2410_GPC12_VD4
| S3C2410_GPC13_VD5
|
211 S3C2410_GPC14_VD6
| S3C2410_GPC15_VD7
),
213 .gpccon_mask
= (S3C2410_GPCCON_MASK(1) | S3C2410_GPCCON_MASK(2) |
214 S3C2410_GPCCON_MASK(3) | S3C2410_GPCCON_MASK(4) |
215 S3C2410_GPCCON_MASK(10) | S3C2410_GPCCON_MASK(11) |
216 S3C2410_GPCCON_MASK(12) | S3C2410_GPCCON_MASK(13) |
217 S3C2410_GPCCON_MASK(14) | S3C2410_GPCCON_MASK(15)),
219 .gpdup
= (0x3f << 2) | (0x3f << 10),
221 .gpdcon
= (S3C2410_GPD2_VD10
| S3C2410_GPD3_VD11
|
222 S3C2410_GPD4_VD12
| S3C2410_GPD5_VD13
|
223 S3C2410_GPD6_VD14
| S3C2410_GPD7_VD15
|
224 S3C2410_GPD10_VD18
| S3C2410_GPD11_VD19
|
225 S3C2410_GPD12_VD20
| S3C2410_GPD13_VD21
|
226 S3C2410_GPD14_VD22
| S3C2410_GPD15_VD23
),
228 .gpdcon_mask
= (S3C2410_GPDCON_MASK(2) | S3C2410_GPDCON_MASK(3) |
229 S3C2410_GPDCON_MASK(4) | S3C2410_GPDCON_MASK(5) |
230 S3C2410_GPDCON_MASK(6) | S3C2410_GPDCON_MASK(7) |
231 S3C2410_GPDCON_MASK(10) | S3C2410_GPDCON_MASK(11)|
232 S3C2410_GPDCON_MASK(12) | S3C2410_GPDCON_MASK(13)|
233 S3C2410_GPDCON_MASK(14) | S3C2410_GPDCON_MASK(15)),
238 static struct s3c24xx_mci_pdata mini2440_mmc_cfg __initdata
= {
239 .gpio_detect
= S3C2410_GPG(8),
240 .gpio_wprotect
= S3C2410_GPH(8),
242 .ocr_avail
= MMC_VDD_32_33
|MMC_VDD_33_34
,
245 /* NAND Flash on MINI2440 board */
247 static struct mtd_partition mini2440_default_nand_part
[] __initdata
= {
254 .name
= "u-boot-env",
260 /* 5 megabytes, for a kernel with no modules
261 * or a uImage with a ramdisk attached */
263 .offset
= SZ_256K
+ SZ_128K
,
267 .offset
= SZ_256K
+ SZ_128K
+ 0x00500000,
268 .size
= MTDPART_SIZ_FULL
,
272 static struct s3c2410_nand_set mini2440_nand_sets
[] __initdata
= {
276 .nr_partitions
= ARRAY_SIZE(mini2440_default_nand_part
),
277 .partitions
= mini2440_default_nand_part
,
278 .flash_bbt
= 1, /* we use u-boot to create a BBT */
282 static struct s3c2410_platform_nand mini2440_nand_info __initdata
= {
286 .nr_sets
= ARRAY_SIZE(mini2440_nand_sets
),
287 .sets
= mini2440_nand_sets
,
288 .ignore_unset_ecc
= 1,
291 /* DM9000AEP 10/100 ethernet controller */
293 static struct resource mini2440_dm9k_resource
[] = {
294 [0] = DEFINE_RES_MEM(MACH_MINI2440_DM9K_BASE
, 4),
295 [1] = DEFINE_RES_MEM(MACH_MINI2440_DM9K_BASE
+ 4, 4),
296 [2] = DEFINE_RES_NAMED(IRQ_EINT7
, 1, NULL
, IORESOURCE_IRQ \
297 | IORESOURCE_IRQ_HIGHEDGE
),
301 * The DM9000 has no eeprom, and it's MAC address is set by
302 * the bootloader before starting the kernel.
304 static struct dm9000_plat_data mini2440_dm9k_pdata
= {
305 .flags
= (DM9000_PLATF_16BITONLY
| DM9000_PLATF_NO_EEPROM
),
308 static struct platform_device mini2440_device_eth
= {
311 .num_resources
= ARRAY_SIZE(mini2440_dm9k_resource
),
312 .resource
= mini2440_dm9k_resource
,
314 .platform_data
= &mini2440_dm9k_pdata
,
335 static struct gpio_keys_button mini2440_buttons
[] = {
337 .gpio
= S3C2410_GPG(0), /* K1 */
343 .gpio
= S3C2410_GPG(3), /* K2 */
349 .gpio
= S3C2410_GPG(5), /* K3 */
355 .gpio
= S3C2410_GPG(6), /* K4 */
361 .gpio
= S3C2410_GPG(7), /* K5 */
367 /* this pin is also known as TCLK1 and seems to already
368 * marked as "in use" somehow in the kernel -- possibly wrongly */
370 .gpio
= S3C2410_GPG(11), /* K6 */
378 static struct gpio_keys_platform_data mini2440_button_data
= {
379 .buttons
= mini2440_buttons
,
380 .nbuttons
= ARRAY_SIZE(mini2440_buttons
),
383 static struct platform_device mini2440_button_device
= {
387 .platform_data
= &mini2440_button_data
,
393 static struct s3c24xx_led_platdata mini2440_led1_pdata
= {
395 .gpio
= S3C2410_GPB(5),
396 .flags
= S3C24XX_LEDF_ACTLOW
| S3C24XX_LEDF_TRISTATE
,
397 .def_trigger
= "heartbeat",
400 static struct s3c24xx_led_platdata mini2440_led2_pdata
= {
402 .gpio
= S3C2410_GPB(6),
403 .flags
= S3C24XX_LEDF_ACTLOW
| S3C24XX_LEDF_TRISTATE
,
404 .def_trigger
= "nand-disk",
407 static struct s3c24xx_led_platdata mini2440_led3_pdata
= {
409 .gpio
= S3C2410_GPB(7),
410 .flags
= S3C24XX_LEDF_ACTLOW
| S3C24XX_LEDF_TRISTATE
,
411 .def_trigger
= "mmc0",
414 static struct s3c24xx_led_platdata mini2440_led4_pdata
= {
416 .gpio
= S3C2410_GPB(8),
417 .flags
= S3C24XX_LEDF_ACTLOW
| S3C24XX_LEDF_TRISTATE
,
421 static struct s3c24xx_led_platdata mini2440_led_backlight_pdata
= {
423 .gpio
= S3C2410_GPG(4),
424 .def_trigger
= "backlight",
427 static struct platform_device mini2440_led1
= {
428 .name
= "s3c24xx_led",
431 .platform_data
= &mini2440_led1_pdata
,
435 static struct platform_device mini2440_led2
= {
436 .name
= "s3c24xx_led",
439 .platform_data
= &mini2440_led2_pdata
,
443 static struct platform_device mini2440_led3
= {
444 .name
= "s3c24xx_led",
447 .platform_data
= &mini2440_led3_pdata
,
451 static struct platform_device mini2440_led4
= {
452 .name
= "s3c24xx_led",
455 .platform_data
= &mini2440_led4_pdata
,
459 static struct platform_device mini2440_led_backlight
= {
460 .name
= "s3c24xx_led",
463 .platform_data
= &mini2440_led_backlight_pdata
,
469 static struct s3c24xx_uda134x_platform_data mini2440_audio_pins
= {
470 .l3_clk
= S3C2410_GPB(4),
471 .l3_mode
= S3C2410_GPB(2),
472 .l3_data
= S3C2410_GPB(3),
473 .model
= UDA134X_UDA1341
476 static struct platform_device mini2440_audio
= {
477 .name
= "s3c24xx_uda134x",
480 .platform_data
= &mini2440_audio_pins
,
487 static struct at24_platform_data at24c08
= {
488 .byte_len
= SZ_8K
/ 8,
492 static struct i2c_board_info mini2440_i2c_devs
[] __initdata
= {
494 I2C_BOARD_INFO("24c08", 0x50),
495 .platform_data
= &at24c08
,
499 static struct platform_device uda1340_codec
= {
500 .name
= "uda134x-codec",
504 static struct platform_device
*mini2440_devices
[] __initdata
= {
509 &s3c_device_usbgadget
,
510 &mini2440_device_eth
,
515 &mini2440_button_device
,
523 static void __init
mini2440_map_io(void)
525 s3c24xx_init_io(mini2440_iodesc
, ARRAY_SIZE(mini2440_iodesc
));
526 s3c24xx_init_clocks(12000000);
527 s3c24xx_init_uarts(mini2440_uartcfgs
, ARRAY_SIZE(mini2440_uartcfgs
));
531 * mini2440_features string
533 * t = Touchscreen present
534 * b = backlight control
536 * 0-9 LCD configuration
539 static char mini2440_features_str
[12] __initdata
= "0tb";
541 static int __init
mini2440_features_setup(char *str
)
544 strlcpy(mini2440_features_str
, str
, sizeof(mini2440_features_str
));
548 __setup("mini2440=", mini2440_features_setup
);
550 #define FEATURE_SCREEN (1 << 0)
551 #define FEATURE_BACKLIGHT (1 << 1)
552 #define FEATURE_TOUCH (1 << 2)
553 #define FEATURE_CAMERA (1 << 3)
555 struct mini2440_features_t
{
559 struct platform_device
*optional
[8];
562 static void __init
mini2440_parse_features(
563 struct mini2440_features_t
* features
,
564 const char * features_str
)
566 const char * fp
= features_str
;
570 features
->lcd_index
= -1;
576 case '0'...'9': /* tft screen */
577 if (features
->done
& FEATURE_SCREEN
) {
578 printk(KERN_INFO
"MINI2440: '%c' ignored, "
579 "screen type already set\n", f
);
582 if (li
>= ARRAY_SIZE(mini2440_lcd_cfg
))
583 printk(KERN_INFO
"MINI2440: "
584 "'%c' out of range LCD mode\n", f
);
586 features
->optional
[features
->count
++] =
588 features
->lcd_index
= li
;
591 features
->done
|= FEATURE_SCREEN
;
594 if (features
->done
& FEATURE_BACKLIGHT
)
595 printk(KERN_INFO
"MINI2440: '%c' ignored, "
596 "backlight already set\n", f
);
598 features
->optional
[features
->count
++] =
599 &mini2440_led_backlight
;
601 features
->done
|= FEATURE_BACKLIGHT
;
604 printk(KERN_INFO
"MINI2440: '%c' ignored, "
605 "touchscreen not compiled in\n", f
);
608 if (features
->done
& FEATURE_CAMERA
)
609 printk(KERN_INFO
"MINI2440: '%c' ignored, "
610 "camera already registered\n", f
);
612 features
->optional
[features
->count
++] =
614 features
->done
|= FEATURE_CAMERA
;
620 static void __init
mini2440_init(void)
622 struct mini2440_features_t features
= { 0 };
625 printk(KERN_INFO
"MINI2440: Option string mini2440=%s\n",
626 mini2440_features_str
);
628 /* Parse the feature string */
629 mini2440_parse_features(&features
, mini2440_features_str
);
632 s3c_gpio_cfgpin(S3C2410_GPC(0), S3C2410_GPC0_LEND
);
634 /* Turn the backlight early on */
635 WARN_ON(gpio_request_one(S3C2410_GPG(4), GPIOF_OUT_INIT_HIGH
, NULL
));
636 gpio_free(S3C2410_GPG(4));
638 /* remove pullup on optional PWM backlight -- unused on 3.5 and 7"s */
639 gpio_request_one(S3C2410_GPB(1), GPIOF_IN
, NULL
);
640 s3c_gpio_setpull(S3C2410_GPB(1), S3C_GPIO_PULL_UP
);
641 gpio_free(S3C2410_GPB(1));
643 /* mark the key as input, without pullups (there is one on the board) */
644 for (i
= 0; i
< ARRAY_SIZE(mini2440_buttons
); i
++) {
645 s3c_gpio_setpull(mini2440_buttons
[i
].gpio
, S3C_GPIO_PULL_UP
);
646 s3c_gpio_cfgpin(mini2440_buttons
[i
].gpio
, S3C2410_GPIO_INPUT
);
648 if (features
.lcd_index
!= -1) {
651 mini2440_fb_info
.displays
=
652 &mini2440_lcd_cfg
[features
.lcd_index
];
654 printk(KERN_INFO
"MINI2440: LCD");
655 for (li
= 0; li
< ARRAY_SIZE(mini2440_lcd_cfg
); li
++)
656 if (li
== features
.lcd_index
)
657 printk(" [%d:%dx%d]", li
,
658 mini2440_lcd_cfg
[li
].width
,
659 mini2440_lcd_cfg
[li
].height
);
661 printk(" %d:%dx%d", li
,
662 mini2440_lcd_cfg
[li
].width
,
663 mini2440_lcd_cfg
[li
].height
);
665 s3c24xx_fb_set_platdata(&mini2440_fb_info
);
668 s3c24xx_udc_set_platdata(&mini2440_udc_cfg
);
669 s3c24xx_mci_set_platdata(&mini2440_mmc_cfg
);
670 s3c_nand_set_platdata(&mini2440_nand_info
);
671 s3c_i2c0_set_platdata(NULL
);
673 i2c_register_board_info(0, mini2440_i2c_devs
,
674 ARRAY_SIZE(mini2440_i2c_devs
));
676 platform_add_devices(mini2440_devices
, ARRAY_SIZE(mini2440_devices
));
678 if (features
.count
) /* the optional features */
679 platform_add_devices(features
.optional
, features
.count
);
684 MACHINE_START(MINI2440
, "MINI2440")
685 /* Maintainer: Michel Pollet <buserror@gmail.com> */
686 .atag_offset
= 0x100,
687 .map_io
= mini2440_map_io
,
688 .init_machine
= mini2440_init
,
689 .init_irq
= s3c24xx_init_irq
,
690 .init_time
= s3c24xx_timer_init
,
691 .restart
= s3c244x_restart
,