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 <mach/leds-gpio.h>
43 #include <mach/regs-mem.h>
44 #include <mach/regs-lcd.h>
45 #include <mach/irqs.h>
46 #include <plat/nand.h>
51 #include <linux/mtd/mtd.h>
52 #include <linux/mtd/nand.h>
53 #include <linux/mtd/nand_ecc.h>
54 #include <linux/mtd/partitions.h>
56 #include <plat/gpio-cfg.h>
57 #include <plat/clock.h>
58 #include <plat/devs.h>
61 #include <sound/s3c24xx_uda134x.h>
63 #define MACH_MINI2440_DM9K_BASE (S3C2410_CS4 + 0x300)
65 static struct map_desc mini2440_iodesc[] __initdata = {
66 /* nothing to declare, move along */
69 #define UCON S3C2410_UCON_DEFAULT
70 #define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
71 #define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
74 static struct s3c2410_uartcfg mini2440_uartcfgs[] __initdata = {
98 /* USB device UDC support */
100 static void mini2440_udc_pullup(enum s3c2410_udc_cmd_e cmd)
102 pr_debug("udc: pullup(%d)\n", cmd);
105 case S3C2410_UDC_P_ENABLE :
106 gpio_set_value(S3C2410_GPC(5), 1);
108 case S3C2410_UDC_P_DISABLE :
109 gpio_set_value(S3C2410_GPC(5), 0);
111 case S3C2410_UDC_P_RESET :
118 static struct s3c2410_udc_mach_info mini2440_udc_cfg __initdata = {
119 .udc_command = mini2440_udc_pullup,
123 /* LCD timing and setup */
126 * This macro simplifies the table bellow
128 #define _LCD_DECLARE(_clock,_xres,margin_left,margin_right,hsync, \
129 _yres,margin_top,margin_bottom,vsync, refresh) \
134 .left_margin = margin_left, \
135 .right_margin = margin_right, \
136 .upper_margin = margin_top, \
137 .lower_margin = margin_bottom, \
138 .hsync_len = hsync, \
139 .vsync_len = vsync, \
140 .pixclock = ((_clock*100000000000LL) / \
142 (hsync + margin_left + _xres + margin_right) * \
143 (vsync + margin_top + _yres + margin_bottom))), \
145 .type = (S3C2410_LCDCON1_TFT16BPP |\
148 static struct s3c2410fb_display mini2440_lcd_cfg[] __initdata = {
149 [0] = { /* mini2440 + 3.5" TFT + touchscreen */
151 7, /* The 3.5 is quite fast */
152 240, 21, 38, 6, /* x timing */
153 320, 4, 4, 2, /* y timing */
154 60), /* refresh rate */
155 .lcdcon5 = (S3C2410_LCDCON5_FRM565 |
156 S3C2410_LCDCON5_INVVLINE |
157 S3C2410_LCDCON5_INVVFRAME |
158 S3C2410_LCDCON5_INVVDEN |
159 S3C2410_LCDCON5_PWREN),
161 [1] = { /* mini2440 + 7" TFT + touchscreen */
163 10, /* the 7" runs slower */
164 800, 40, 40, 48, /* x timing */
165 480, 29, 3, 3, /* y timing */
166 50), /* refresh rate */
167 .lcdcon5 = (S3C2410_LCDCON5_FRM565 |
168 S3C2410_LCDCON5_INVVLINE |
169 S3C2410_LCDCON5_INVVFRAME |
170 S3C2410_LCDCON5_PWREN),
172 /* The VGA shield can outout at several resolutions. All share
173 * the same timings, however, anything smaller than 1024x768
174 * will only be displayed in the top left corner of a 1024x768
175 * XGA output unless you add optional dip switches to the shield.
176 * Therefore timings for other resolutions have been ommited here.
181 1024, 1, 2, 2, /* y timing */
182 768, 200, 16, 16, /* x timing */
183 24), /* refresh rate, maximum stable,
184 tested with the FPGA shield */
185 .lcdcon5 = (S3C2410_LCDCON5_FRM565 |
186 S3C2410_LCDCON5_HWSWP),
190 /* todo - put into gpio header */
192 #define S3C2410_GPCCON_MASK(x) (3 << ((x) * 2))
193 #define S3C2410_GPDCON_MASK(x) (3 << ((x) * 2))
195 static struct s3c2410fb_mach_info mini2440_fb_info __initdata = {
196 .displays = &mini2440_lcd_cfg[0], /* not constant! see init */
198 .default_display = 0,
200 /* Enable VD[2..7], VD[10..15], VD[18..23] and VCLK, syncs, VDEN
201 * and disable the pull down resistors on pins we are using for LCD
204 .gpcup = (0xf << 1) | (0x3f << 10),
206 .gpccon = (S3C2410_GPC1_VCLK | S3C2410_GPC2_VLINE |
207 S3C2410_GPC3_VFRAME | S3C2410_GPC4_VM |
208 S3C2410_GPC10_VD2 | S3C2410_GPC11_VD3 |
209 S3C2410_GPC12_VD4 | S3C2410_GPC13_VD5 |
210 S3C2410_GPC14_VD6 | S3C2410_GPC15_VD7),
212 .gpccon_mask = (S3C2410_GPCCON_MASK(1) | S3C2410_GPCCON_MASK(2) |
213 S3C2410_GPCCON_MASK(3) | S3C2410_GPCCON_MASK(4) |
214 S3C2410_GPCCON_MASK(10) | S3C2410_GPCCON_MASK(11) |
215 S3C2410_GPCCON_MASK(12) | S3C2410_GPCCON_MASK(13) |
216 S3C2410_GPCCON_MASK(14) | S3C2410_GPCCON_MASK(15)),
218 .gpdup = (0x3f << 2) | (0x3f << 10),
220 .gpdcon = (S3C2410_GPD2_VD10 | S3C2410_GPD3_VD11 |
221 S3C2410_GPD4_VD12 | S3C2410_GPD5_VD13 |
222 S3C2410_GPD6_VD14 | S3C2410_GPD7_VD15 |
223 S3C2410_GPD10_VD18 | S3C2410_GPD11_VD19 |
224 S3C2410_GPD12_VD20 | S3C2410_GPD13_VD21 |
225 S3C2410_GPD14_VD22 | S3C2410_GPD15_VD23),
227 .gpdcon_mask = (S3C2410_GPDCON_MASK(2) | S3C2410_GPDCON_MASK(3) |
228 S3C2410_GPDCON_MASK(4) | S3C2410_GPDCON_MASK(5) |
229 S3C2410_GPDCON_MASK(6) | S3C2410_GPDCON_MASK(7) |
230 S3C2410_GPDCON_MASK(10) | S3C2410_GPDCON_MASK(11)|
231 S3C2410_GPDCON_MASK(12) | S3C2410_GPDCON_MASK(13)|
232 S3C2410_GPDCON_MASK(14) | S3C2410_GPDCON_MASK(15)),
237 static struct s3c24xx_mci_pdata mini2440_mmc_cfg __initdata = {
238 .gpio_detect = S3C2410_GPG(8),
239 .gpio_wprotect = S3C2410_GPH(8),
241 .ocr_avail = MMC_VDD_32_33|MMC_VDD_33_34,
244 /* NAND Flash on MINI2440 board */
246 static struct mtd_partition mini2440_default_nand_part[] __initdata = {
253 .name = "u-boot-env",
259 /* 5 megabytes, for a kernel with no modules
260 * or a uImage with a ramdisk attached */
262 .offset = SZ_256K + SZ_128K,
266 .offset = SZ_256K + SZ_128K + 0x00500000,
267 .size = MTDPART_SIZ_FULL,
271 static struct s3c2410_nand_set mini2440_nand_sets[] __initdata = {
275 .nr_partitions = ARRAY_SIZE(mini2440_default_nand_part),
276 .partitions = mini2440_default_nand_part,
277 .flash_bbt = 1, /* we use u-boot to create a BBT */
281 static struct s3c2410_platform_nand mini2440_nand_info __initdata = {
285 .nr_sets = ARRAY_SIZE(mini2440_nand_sets),
286 .sets = mini2440_nand_sets,
287 .ignore_unset_ecc = 1,
290 /* DM9000AEP 10/100 ethernet controller */
292 static struct resource mini2440_dm9k_resource[] = {
294 .start = MACH_MINI2440_DM9K_BASE,
295 .end = MACH_MINI2440_DM9K_BASE + 3,
296 .flags = IORESOURCE_MEM
299 .start = MACH_MINI2440_DM9K_BASE + 4,
300 .end = MACH_MINI2440_DM9K_BASE + 7,
301 .flags = IORESOURCE_MEM
306 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
311 * The DM9000 has no eeprom, and it's MAC address is set by
312 * the bootloader before starting the kernel.
314 static struct dm9000_plat_data mini2440_dm9k_pdata = {
315 .flags = (DM9000_PLATF_16BITONLY | DM9000_PLATF_NO_EEPROM),
318 static struct platform_device mini2440_device_eth = {
321 .num_resources = ARRAY_SIZE(mini2440_dm9k_resource),
322 .resource = mini2440_dm9k_resource,
324 .platform_data = &mini2440_dm9k_pdata,
345 static struct gpio_keys_button mini2440_buttons[] = {
347 .gpio = S3C2410_GPG(0), /* K1 */
353 .gpio = S3C2410_GPG(3), /* K2 */
359 .gpio = S3C2410_GPG(5), /* K3 */
365 .gpio = S3C2410_GPG(6), /* K4 */
371 .gpio = S3C2410_GPG(7), /* K5 */
377 /* this pin is also known as TCLK1 and seems to already
378 * marked as "in use" somehow in the kernel -- possibly wrongly */
380 .gpio = S3C2410_GPG(11), /* K6 */
388 static struct gpio_keys_platform_data mini2440_button_data = {
389 .buttons = mini2440_buttons,
390 .nbuttons = ARRAY_SIZE(mini2440_buttons),
393 static struct platform_device mini2440_button_device = {
397 .platform_data = &mini2440_button_data,
403 static struct s3c24xx_led_platdata mini2440_led1_pdata = {
405 .gpio = S3C2410_GPB(5),
406 .flags = S3C24XX_LEDF_ACTLOW | S3C24XX_LEDF_TRISTATE,
407 .def_trigger = "heartbeat",
410 static struct s3c24xx_led_platdata mini2440_led2_pdata = {
412 .gpio = S3C2410_GPB(6),
413 .flags = S3C24XX_LEDF_ACTLOW | S3C24XX_LEDF_TRISTATE,
414 .def_trigger = "nand-disk",
417 static struct s3c24xx_led_platdata mini2440_led3_pdata = {
419 .gpio = S3C2410_GPB(7),
420 .flags = S3C24XX_LEDF_ACTLOW | S3C24XX_LEDF_TRISTATE,
421 .def_trigger = "mmc0",
424 static struct s3c24xx_led_platdata mini2440_led4_pdata = {
426 .gpio = S3C2410_GPB(8),
427 .flags = S3C24XX_LEDF_ACTLOW | S3C24XX_LEDF_TRISTATE,
431 static struct s3c24xx_led_platdata mini2440_led_backlight_pdata = {
433 .gpio = S3C2410_GPG(4),
434 .def_trigger = "backlight",
437 static struct platform_device mini2440_led1 = {
438 .name = "s3c24xx_led",
441 .platform_data = &mini2440_led1_pdata,
445 static struct platform_device mini2440_led2 = {
446 .name = "s3c24xx_led",
449 .platform_data = &mini2440_led2_pdata,
453 static struct platform_device mini2440_led3 = {
454 .name = "s3c24xx_led",
457 .platform_data = &mini2440_led3_pdata,
461 static struct platform_device mini2440_led4 = {
462 .name = "s3c24xx_led",
465 .platform_data = &mini2440_led4_pdata,
469 static struct platform_device mini2440_led_backlight = {
470 .name = "s3c24xx_led",
473 .platform_data = &mini2440_led_backlight_pdata,
479 static struct s3c24xx_uda134x_platform_data mini2440_audio_pins = {
480 .l3_clk = S3C2410_GPB(4),
481 .l3_mode = S3C2410_GPB(2),
482 .l3_data = S3C2410_GPB(3),
483 .model = UDA134X_UDA1341
486 static struct platform_device mini2440_audio = {
487 .name = "s3c24xx_uda134x",
490 .platform_data = &mini2440_audio_pins,
497 static struct at24_platform_data at24c08 = {
498 .byte_len = SZ_8K / 8,
502 static struct i2c_board_info mini2440_i2c_devs[] __initdata = {
504 I2C_BOARD_INFO("24c08", 0x50),
505 .platform_data = &at24c08,
509 static struct platform_device *mini2440_devices[] __initdata = {
514 &s3c_device_usbgadget,
515 &mini2440_device_eth,
520 &mini2440_button_device,
527 static void __init mini2440_map_io(void)
529 s3c24xx_init_io(mini2440_iodesc, ARRAY_SIZE(mini2440_iodesc));
530 s3c24xx_init_clocks(12000000);
531 s3c24xx_init_uarts(mini2440_uartcfgs, ARRAY_SIZE(mini2440_uartcfgs));
535 * mini2440_features string
537 * t = Touchscreen present
538 * b = backlight control
540 * 0-9 LCD configuration
543 static char mini2440_features_str[12] __initdata = "0tb";
545 static int __init mini2440_features_setup(char *str)
548 strlcpy(mini2440_features_str, str, sizeof(mini2440_features_str));
552 __setup("mini2440=", mini2440_features_setup);
554 #define FEATURE_SCREEN (1 << 0)
555 #define FEATURE_BACKLIGHT (1 << 1)
556 #define FEATURE_TOUCH (1 << 2)
557 #define FEATURE_CAMERA (1 << 3)
559 struct mini2440_features_t {
563 struct platform_device *optional[8];
566 static void mini2440_parse_features(
567 struct mini2440_features_t * features,
568 const char * features_str )
570 const char * fp = features_str;
574 features->lcd_index = -1;
580 case '0'...'9': /* tft screen */
581 if (features->done & FEATURE_SCREEN) {
582 printk(KERN_INFO "MINI2440: '%c' ignored, "
583 "screen type already set\n", f);
586 if (li >= ARRAY_SIZE(mini2440_lcd_cfg))
587 printk(KERN_INFO "MINI2440: "
588 "'%c' out of range LCD mode\n", f);
590 features->optional[features->count++] =
592 features->lcd_index = li;
595 features->done |= FEATURE_SCREEN;
598 if (features->done & FEATURE_BACKLIGHT)
599 printk(KERN_INFO "MINI2440: '%c' ignored, "
600 "backlight already set\n", f);
602 features->optional[features->count++] =
603 &mini2440_led_backlight;
605 features->done |= FEATURE_BACKLIGHT;
608 printk(KERN_INFO "MINI2440: '%c' ignored, "
609 "touchscreen not compiled in\n", f);
612 if (features->done & FEATURE_CAMERA)
613 printk(KERN_INFO "MINI2440: '%c' ignored, "
614 "camera already registered\n", f);
616 features->optional[features->count++] =
618 features->done |= FEATURE_CAMERA;
624 static void __init mini2440_init(void)
626 struct mini2440_features_t features = { 0 };
629 printk(KERN_INFO "MINI2440: Option string mini2440=%s\n",
630 mini2440_features_str);
632 /* Parse the feature string */
633 mini2440_parse_features(&features, mini2440_features_str);
636 s3c_gpio_cfgpin(S3C2410_GPC(0), S3C2410_GPC0_LEND);
638 /* Turn the backlight early on */
639 WARN_ON(gpio_request(S3C2410_GPG(4), "backlight"));
640 gpio_direction_output(S3C2410_GPG(4), 1);
642 /* remove pullup on optional PWM backlight -- unused on 3.5 and 7"s */
643 s3c_gpio_setpull(S3C2410_GPB(1), S3C_GPIO_PULL_UP);
644 s3c2410_gpio_setpin(S3C2410_GPB(1), 0);
645 s3c_gpio_cfgpin(S3C2410_GPB(1), S3C2410_GPIO_INPUT);
647 /* Make sure the D+ pullup pin is output */
648 WARN_ON(gpio_request(S3C2410_GPC(5), "udc pup"));
649 gpio_direction_output(S3C2410_GPC(5), 0);
651 /* mark the key as input, without pullups (there is one on the board) */
652 for (i = 0; i < ARRAY_SIZE(mini2440_buttons); i++) {
653 s3c_gpio_setpull(mini2440_buttons[i].gpio, S3C_GPIO_PULL_UP);
654 s3c_gpio_cfgpin(mini2440_buttons[i].gpio, S3C2410_GPIO_INPUT);
656 if (features.lcd_index != -1) {
659 mini2440_fb_info.displays =
660 &mini2440_lcd_cfg[features.lcd_index];
662 printk(KERN_INFO "MINI2440: LCD");
663 for (li = 0; li < ARRAY_SIZE(mini2440_lcd_cfg); li++)
664 if (li == features.lcd_index)
665 printk(" [%d:%dx%d]", li,
666 mini2440_lcd_cfg[li].width,
667 mini2440_lcd_cfg[li].height);
669 printk(" %d:%dx%d", li,
670 mini2440_lcd_cfg[li].width,
671 mini2440_lcd_cfg[li].height);
673 s3c24xx_fb_set_platdata(&mini2440_fb_info);
676 s3c24xx_udc_set_platdata(&mini2440_udc_cfg);
677 s3c24xx_mci_set_platdata(&mini2440_mmc_cfg);
678 s3c_nand_set_platdata(&mini2440_nand_info);
679 s3c_i2c0_set_platdata(NULL);
681 i2c_register_board_info(0, mini2440_i2c_devs,
682 ARRAY_SIZE(mini2440_i2c_devs));
684 platform_add_devices(mini2440_devices, ARRAY_SIZE(mini2440_devices));
686 if (features.count) /* the optional features */
687 platform_add_devices(features.optional, features.count);
692 MACHINE_START(MINI2440, "MINI2440")
693 /* Maintainer: Michel Pollet <buserror@gmail.com> */
694 .boot_params = S3C2410_SDRAM_PA + 0x100,
695 .map_io = mini2440_map_io,
696 .init_machine = mini2440_init,
697 .init_irq = s3c24xx_init_irq,
698 .timer = &s3c24xx_timer,