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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/* linux/arch/arm/mach-s3c2410/mach-h1940.c
2 *
3 * Copyright (c) 2003-2005 Simtec Electronics
4 * Ben Dooks <ben@simtec.co.uk>
5 *
6 * http://www.handhelds.org/projects/h1940.html
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
11 *
Linus Torvalds1da177e2005-04-16 15:20:36 -070012*/
13
14#include <linux/kernel.h>
15#include <linux/types.h>
16#include <linux/interrupt.h>
17#include <linux/list.h>
18#include <linux/timer.h>
19#include <linux/init.h>
Ben Dooks333a42e2007-05-20 11:55:53 +010020#include <linux/sysdev.h>
Ben Dooksb6d1f542006-12-17 23:22:26 +010021#include <linux/serial_core.h>
Russell Kingd052d1b2005-10-29 19:07:23 +010022#include <linux/platform_device.h>
Russell Kingfced80c2008-09-06 12:10:45 +010023#include <linux/io.h>
arnaud.patard@rtp-net.org3909b9f2009-11-17 14:54:56 +010024#include <linux/gpio.h>
arnaud.patard@rtp-net.org22e649f2009-11-17 14:54:58 +010025#include <linux/pwm_backlight.h>
26#include <video/platform_lcd.h>
arnaud.patard@rtp-net.org3909b9f2009-11-17 14:54:56 +010027
28#include <linux/mmc/host.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070029
30#include <asm/mach/arch.h>
31#include <asm/mach/map.h>
32#include <asm/mach/irq.h>
33
Russell Kinga09e64f2008-08-05 16:14:15 +010034#include <mach/hardware.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070035#include <asm/irq.h>
36#include <asm/mach-types.h>
37
Ben Dooksa2b7ba92008-10-07 22:26:09 +010038#include <plat/regs-serial.h>
Russell Kinga09e64f2008-08-05 16:14:15 +010039#include <mach/regs-lcd.h>
Russell Kinga09e64f2008-08-05 16:14:15 +010040#include <mach/regs-clock.h>
Arnaud Patardf92273c2005-09-09 13:10:10 -070041
arnaud.patard@rtp-net.org3909b9f2009-11-17 14:54:56 +010042#include <mach/regs-gpio.h>
43#include <mach/gpio-fns.h>
44#include <mach/gpio-nrs.h>
45
Russell Kinga09e64f2008-08-05 16:14:15 +010046#include <mach/h1940.h>
47#include <mach/h1940-latch.h>
48#include <mach/fb.h>
Arnaud Patardce8877b2009-12-23 19:25:05 +000049#include <mach/ts.h>
Ben Dooks57bd4b92008-10-30 10:14:37 +000050#include <plat/udc.h>
Ben Dooks3e1b7762008-10-31 16:14:40 +000051#include <plat/iic.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070052
Ben Dooksd5120ae2008-10-07 23:09:51 +010053#include <plat/clock.h>
Ben Dooksa2b7ba92008-10-07 22:26:09 +010054#include <plat/devs.h>
55#include <plat/cpu.h>
Ben Dookse24b8642008-10-21 14:06:34 +010056#include <plat/pll.h>
Ben Dooksa2b7ba92008-10-07 22:26:09 +010057#include <plat/pm.h>
arnaud.patard@rtp-net.org3909b9f2009-11-17 14:54:56 +010058#include <plat/mci.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070059
60static struct map_desc h1940_iodesc[] __initdata = {
Ben Dookse1981682006-02-10 22:40:51 +000061 [0] = {
62 .virtual = (unsigned long)H1940_LATCH,
63 .pfn = __phys_to_pfn(H1940_PA_LATCH),
64 .length = SZ_16K,
65 .type = MT_DEVICE
66 },
Linus Torvalds1da177e2005-04-16 15:20:36 -070067};
68
69#define UCON S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK
70#define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
71#define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
72
Ben Dooks66a9b492006-06-18 23:04:05 +010073static struct s3c2410_uartcfg h1940_uartcfgs[] __initdata = {
Linus Torvalds1da177e2005-04-16 15:20:36 -070074 [0] = {
75 .hwport = 0,
76 .flags = 0,
77 .ucon = 0x3c5,
78 .ulcon = 0x03,
79 .ufcon = 0x51,
80 },
81 [1] = {
82 .hwport = 1,
83 .flags = 0,
84 .ucon = 0x245,
85 .ulcon = 0x03,
86 .ufcon = 0x00,
87 },
88 /* IR port */
89 [2] = {
90 .hwport = 2,
91 .flags = 0,
92 .uart_flags = UPF_CONS_FLOW,
93 .ucon = 0x3c5,
94 .ulcon = 0x43,
95 .ufcon = 0x51,
96 }
97};
98
Ben Dookse1981682006-02-10 22:40:51 +000099/* Board control latch control */
100
101static unsigned int latch_state = H1940_LATCH_DEFAULT;
102
103void h1940_latch_control(unsigned int clear, unsigned int set)
104{
105 unsigned long flags;
106
107 local_irq_save(flags);
108
109 latch_state &= ~clear;
110 latch_state |= set;
111
112 __raw_writel(latch_state, H1940_LATCH);
113
114 local_irq_restore(flags);
115}
116
117EXPORT_SYMBOL_GPL(h1940_latch_control);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700118
Arnaud Patard71a9c422007-02-13 00:21:26 +0100119static void h1940_udc_pullup(enum s3c2410_udc_cmd_e cmd)
120{
121 printk(KERN_DEBUG "udc: pullup(%d)\n",cmd);
122
123 switch (cmd)
124 {
125 case S3C2410_UDC_P_ENABLE :
126 h1940_latch_control(0, H1940_LATCH_USB_DP);
127 break;
128 case S3C2410_UDC_P_DISABLE :
129 h1940_latch_control(H1940_LATCH_USB_DP, 0);
130 break;
131 case S3C2410_UDC_P_RESET :
132 break;
133 default:
134 break;
135 }
136}
137
138static struct s3c2410_udc_mach_info h1940_udc_cfg __initdata = {
139 .udc_command = h1940_udc_pullup,
Ben Dooks070276d2009-05-17 22:32:23 +0100140 .vbus_pin = S3C2410_GPG(5),
Arnaud Patard71a9c422007-02-13 00:21:26 +0100141 .vbus_pin_inverted = 1,
142};
143
Arnaud Patardce8877b2009-12-23 19:25:05 +0000144static struct s3c2410_ts_mach_info h1940_ts_cfg __initdata = {
145 .delay = 10000,
146 .presc = 49,
147 .oversampling_shift = 2,
148};
Arnaud Patard71a9c422007-02-13 00:21:26 +0100149
Arnaud Patardf92273c2005-09-09 13:10:10 -0700150/**
151 * Set lcd on or off
152 **/
Krzysztof Helt09fe75f2007-10-16 01:28:56 -0700153static struct s3c2410fb_display h1940_lcd __initdata = {
Krzysztof Heltf28ef572007-10-16 01:28:58 -0700154 .lcdcon5= S3C2410_LCDCON5_FRM565 | \
155 S3C2410_LCDCON5_INVVLINE | \
156 S3C2410_LCDCON5_HWSWP,
Krzysztof Helt09fe75f2007-10-16 01:28:56 -0700157
Krzysztof Helt1f411532007-10-16 01:28:57 -0700158 .type = S3C2410_LCDCON1_TFT,
Krzysztof Helt09fe75f2007-10-16 01:28:56 -0700159 .width = 240,
160 .height = 320,
Krzysztof Helt69816692007-10-16 01:29:06 -0700161 .pixclock = 260000,
Krzysztof Helt09fe75f2007-10-16 01:28:56 -0700162 .xres = 240,
163 .yres = 320,
164 .bpp = 16,
Krzysztof Helt1f411532007-10-16 01:28:57 -0700165 .left_margin = 20,
166 .right_margin = 8,
Krzysztof Helt93d11f52007-10-16 01:29:00 -0700167 .hsync_len = 4,
Krzysztof Helt5f20f692007-10-16 01:28:59 -0700168 .upper_margin = 8,
169 .lower_margin = 7,
Krzysztof Helt93d11f52007-10-16 01:29:00 -0700170 .vsync_len = 1,
Krzysztof Helt09fe75f2007-10-16 01:28:56 -0700171};
172
173static struct s3c2410fb_mach_info h1940_fb_info __initdata = {
Krzysztof Helt09fe75f2007-10-16 01:28:56 -0700174 .displays = &h1940_lcd,
175 .num_displays = 1,
176 .default_display = 0,
177
Arnaud Patardf92273c2005-09-09 13:10:10 -0700178 .lpcsel= 0x02,
179 .gpccon= 0xaa940659,
180 .gpccon_mask= 0xffffffff,
181 .gpcup= 0x0000ffff,
182 .gpcup_mask= 0xffffffff,
183 .gpdcon= 0xaa84aaa0,
184 .gpdcon_mask= 0xffffffff,
185 .gpdup= 0x0000faff,
186 .gpdup_mask= 0xffffffff,
Arnaud Patardf92273c2005-09-09 13:10:10 -0700187};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700188
Ben Dooksff34aaa2009-09-28 12:45:47 +0900189static struct platform_device h1940_device_leds = {
Arnaud Patardd2a76022007-02-13 00:50:34 +0100190 .name = "h1940-leds",
191 .id = -1,
192};
193
Ben Dooksff34aaa2009-09-28 12:45:47 +0900194static struct platform_device h1940_device_bluetooth = {
Arnaud Patard7fdc7842007-05-09 21:41:03 +0100195 .name = "h1940-bt",
196 .id = -1,
197};
198
arnaud.patard@rtp-net.org3909b9f2009-11-17 14:54:56 +0100199static struct s3c24xx_mci_pdata h1940_mmc_cfg = {
200 .gpio_detect = S3C2410_GPF(5),
201 .gpio_wprotect = S3C2410_GPH(8),
202 .set_power = NULL,
203 .ocr_avail = MMC_VDD_32_33,
204};
205
arnaud.patard@rtp-net.org22e649f2009-11-17 14:54:58 +0100206static int h1940_backlight_init(struct device *dev)
207{
208 gpio_request(S3C2410_GPB(0), "Backlight");
209
210 s3c2410_gpio_setpin(S3C2410_GPB(0), 0);
211 s3c2410_gpio_pullup(S3C2410_GPB(0), 0);
212 s3c2410_gpio_cfgpin(S3C2410_GPB(0), S3C2410_GPB0_TOUT0);
213
214 return 0;
215}
216
217static void h1940_backlight_exit(struct device *dev)
218{
219 s3c2410_gpio_cfgpin(S3C2410_GPB(0), 1/*S3C2410_GPB0_OUTP*/);
220}
221
222static struct platform_pwm_backlight_data backlight_data = {
223 .pwm_id = 0,
224 .max_brightness = 100,
225 .dft_brightness = 50,
226 /* tcnt = 0x31 */
227 .pwm_period_ns = 36296,
228 .init = h1940_backlight_init,
229 .exit = h1940_backlight_exit,
230};
231
232static struct platform_device h1940_backlight = {
233 .name = "pwm-backlight",
234 .dev = {
235 .parent = &s3c_device_timer[0].dev,
236 .platform_data = &backlight_data,
237 },
238 .id = -1,
239};
240
241static void h1940_lcd_power_set(struct plat_lcd_data *pd,
242 unsigned int power)
243{
244 int value;
245
246 if (!power) {
247 /* set to 3ec */
248 s3c2410_gpio_setpin(S3C2410_GPC(0), 0);
249 /* wait for 3ac */
250 do {
251 value = s3c2410_gpio_getpin(S3C2410_GPC(6));
252 } while (value);
253 /* set to 38c */
254 s3c2410_gpio_setpin(S3C2410_GPC(5), 0);
255 } else {
256 /* Set to 3ac */
257 s3c2410_gpio_setpin(S3C2410_GPC(5), 1);
258 /* Set to 3ad */
259 s3c2410_gpio_setpin(S3C2410_GPC(0), 1);
260 }
261}
262
263static struct plat_lcd_data h1940_lcd_power_data = {
264 .set_power = h1940_lcd_power_set,
265};
266
267static struct platform_device h1940_lcd_powerdev = {
268 .name = "platform-lcd",
269 .dev.parent = &s3c_device_lcd.dev,
270 .dev.platform_data = &h1940_lcd_power_data,
271};
272
Linus Torvalds1da177e2005-04-16 15:20:36 -0700273static struct platform_device *h1940_devices[] __initdata = {
Arnaud Patardce8877b2009-12-23 19:25:05 +0000274 &s3c_device_ts,
Ben Dooksb8132482009-11-23 00:13:39 +0000275 &s3c_device_ohci,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700276 &s3c_device_lcd,
277 &s3c_device_wdt,
Ben Dooks3e1b7762008-10-31 16:14:40 +0000278 &s3c_device_i2c0,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700279 &s3c_device_iis,
Arnaud Patard71a9c422007-02-13 00:21:26 +0100280 &s3c_device_usbgadget,
Ben Dooksff34aaa2009-09-28 12:45:47 +0900281 &h1940_device_leds,
282 &h1940_device_bluetooth,
arnaud.patard@rtp-net.org3909b9f2009-11-17 14:54:56 +0100283 &s3c_device_sdi,
arnaud.patard@rtp-net.org13733d52009-11-17 14:54:57 +0100284 &s3c_device_rtc,
arnaud.patard@rtp-net.org22e649f2009-11-17 14:54:58 +0100285 &s3c_device_timer[0],
286 &h1940_backlight,
287 &h1940_lcd_powerdev,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700288};
289
Ben Dooks5fe10ab2005-09-20 17:24:33 +0100290static void __init h1940_map_io(void)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700291{
292 s3c24xx_init_io(h1940_iodesc, ARRAY_SIZE(h1940_iodesc));
293 s3c24xx_init_clocks(0);
294 s3c24xx_init_uarts(h1940_uartcfgs, ARRAY_SIZE(h1940_uartcfgs));
Ben Dooks90733412006-12-06 01:50:24 +0100295
296 /* setup PM */
297
Krzysztof Heltb1dfe1f2007-03-19 15:10:20 +0100298#ifdef CONFIG_PM_H1940
Ben Dooks90733412006-12-06 01:50:24 +0100299 memcpy(phys_to_virt(H1940_SUSPEND_RESUMEAT), h1940_pm_return, 1024);
Krzysztof Heltb1dfe1f2007-03-19 15:10:20 +0100300#endif
Ben Dooks4e59c252008-12-12 00:24:18 +0000301 s3c_pm_init();
Linus Torvalds1da177e2005-04-16 15:20:36 -0700302}
303
Ben Dooks5fe10ab2005-09-20 17:24:33 +0100304static void __init h1940_init_irq(void)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700305{
306 s3c24xx_init_irq();
Linus Torvalds1da177e2005-04-16 15:20:36 -0700307}
308
Ben Dooks5fe10ab2005-09-20 17:24:33 +0100309static void __init h1940_init(void)
Arnaud Patardf92273c2005-09-09 13:10:10 -0700310{
Arnaud Patard71a9c422007-02-13 00:21:26 +0100311 u32 tmp;
312
Krzysztof Helt09fe75f2007-10-16 01:28:56 -0700313 s3c24xx_fb_set_platdata(&h1940_fb_info);
Arnaud Patard71a9c422007-02-13 00:21:26 +0100314 s3c24xx_udc_set_platdata(&h1940_udc_cfg);
Arnaud Patardce8877b2009-12-23 19:25:05 +0000315 s3c24xx_ts_set_platdata(&h1940_ts_cfg);
Ben Dooks3e1b7762008-10-31 16:14:40 +0000316 s3c_i2c0_set_platdata(NULL);
Arnaud Patard71a9c422007-02-13 00:21:26 +0100317
arnaud.patard@rtp-net.org3909b9f2009-11-17 14:54:56 +0100318 s3c_device_sdi.dev.platform_data = &h1940_mmc_cfg;
319
Arnaud Patard71a9c422007-02-13 00:21:26 +0100320 /* Turn off suspend on both USB ports, and switch the
321 * selectable USB port to USB device mode. */
322
323 s3c2410_modify_misccr(S3C2410_MISCCR_USBHOST |
324 S3C2410_MISCCR_USBSUSPND0 |
325 S3C2410_MISCCR_USBSUSPND1, 0x0);
326
Ben Dookse24b8642008-10-21 14:06:34 +0100327 tmp = (0x78 << S3C24XX_PLLCON_MDIVSHIFT)
328 | (0x02 << S3C24XX_PLLCON_PDIVSHIFT)
329 | (0x03 << S3C24XX_PLLCON_SDIVSHIFT);
Arnaud Patard71a9c422007-02-13 00:21:26 +0100330 writel(tmp, S3C2410_UPLLCON);
Ben Dooks57e51712007-04-20 11:19:16 +0100331
arnaud.patard@rtp-net.org22e649f2009-11-17 14:54:58 +0100332 gpio_request(S3C2410_GPC(0), "LCD power");
333 gpio_request(S3C2410_GPC(5), "LCD power");
334 gpio_request(S3C2410_GPC(6), "LCD power");
335
336
Ben Dooks57e51712007-04-20 11:19:16 +0100337 platform_add_devices(h1940_devices, ARRAY_SIZE(h1940_devices));
Arnaud Patardf92273c2005-09-09 13:10:10 -0700338}
339
Linus Torvalds1da177e2005-04-16 15:20:36 -0700340MACHINE_START(H1940, "IPAQ-H1940")
Russell Kinge9dea0c2005-07-03 17:38:58 +0100341 /* Maintainer: Ben Dooks <ben@fluff.org> */
Russell Kinge9dea0c2005-07-03 17:38:58 +0100342 .phys_io = S3C2410_PA_UART,
343 .io_pg_offst = (((u32)S3C24XX_VA_UART) >> 18) & 0xfffc,
344 .boot_params = S3C2410_SDRAM_PA + 0x100,
345 .map_io = h1940_map_io,
346 .init_irq = h1940_init_irq,
Arnaud Patard71a9c422007-02-13 00:21:26 +0100347 .init_machine = h1940_init,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700348 .timer = &s3c24xx_timer,
349MACHINE_END