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1da177e4 LT |
1 | /* 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 | * | |
1da177e4 LT |
12 | */ |
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> | |
333a42e1 | 20 | #include <linux/sysdev.h> |
b6d1f542 | 21 | #include <linux/serial_core.h> |
d052d1be | 22 | #include <linux/platform_device.h> |
fced80c7 | 23 | #include <linux/io.h> |
3909b9f7 | 24 | #include <linux/gpio.h> |
22e649ff | 25 | #include <linux/pwm_backlight.h> |
26 | #include <video/platform_lcd.h> | |
3909b9f7 | 27 | |
28 | #include <linux/mmc/host.h> | |
1da177e4 LT |
29 | |
30 | #include <asm/mach/arch.h> | |
31 | #include <asm/mach/map.h> | |
32 | #include <asm/mach/irq.h> | |
33 | ||
a09e64fb | 34 | #include <mach/hardware.h> |
1da177e4 LT |
35 | #include <asm/irq.h> |
36 | #include <asm/mach-types.h> | |
37 | ||
a2b7ba9c | 38 | #include <plat/regs-serial.h> |
a09e64fb | 39 | #include <mach/regs-lcd.h> |
a09e64fb | 40 | #include <mach/regs-clock.h> |
f92273c1 | 41 | |
3909b9f7 | 42 | #include <mach/regs-gpio.h> |
43 | #include <mach/gpio-fns.h> | |
44 | #include <mach/gpio-nrs.h> | |
45 | ||
a09e64fb RK |
46 | #include <mach/h1940.h> |
47 | #include <mach/h1940-latch.h> | |
48 | #include <mach/fb.h> | |
57bd4b91 | 49 | #include <plat/udc.h> |
3e1b776c | 50 | #include <plat/iic.h> |
1da177e4 | 51 | |
d5120ae7 | 52 | #include <plat/clock.h> |
a2b7ba9c BD |
53 | #include <plat/devs.h> |
54 | #include <plat/cpu.h> | |
e24b864a | 55 | #include <plat/pll.h> |
a2b7ba9c | 56 | #include <plat/pm.h> |
3909b9f7 | 57 | #include <plat/mci.h> |
1da177e4 LT |
58 | |
59 | static struct map_desc h1940_iodesc[] __initdata = { | |
e1981680 BD |
60 | [0] = { |
61 | .virtual = (unsigned long)H1940_LATCH, | |
62 | .pfn = __phys_to_pfn(H1940_PA_LATCH), | |
63 | .length = SZ_16K, | |
64 | .type = MT_DEVICE | |
65 | }, | |
1da177e4 LT |
66 | }; |
67 | ||
68 | #define UCON S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK | |
69 | #define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB | |
70 | #define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE | |
71 | ||
66a9b49a | 72 | static struct s3c2410_uartcfg h1940_uartcfgs[] __initdata = { |
1da177e4 LT |
73 | [0] = { |
74 | .hwport = 0, | |
75 | .flags = 0, | |
76 | .ucon = 0x3c5, | |
77 | .ulcon = 0x03, | |
78 | .ufcon = 0x51, | |
79 | }, | |
80 | [1] = { | |
81 | .hwport = 1, | |
82 | .flags = 0, | |
83 | .ucon = 0x245, | |
84 | .ulcon = 0x03, | |
85 | .ufcon = 0x00, | |
86 | }, | |
87 | /* IR port */ | |
88 | [2] = { | |
89 | .hwport = 2, | |
90 | .flags = 0, | |
91 | .uart_flags = UPF_CONS_FLOW, | |
92 | .ucon = 0x3c5, | |
93 | .ulcon = 0x43, | |
94 | .ufcon = 0x51, | |
95 | } | |
96 | }; | |
97 | ||
e1981680 BD |
98 | /* Board control latch control */ |
99 | ||
100 | static unsigned int latch_state = H1940_LATCH_DEFAULT; | |
101 | ||
102 | void h1940_latch_control(unsigned int clear, unsigned int set) | |
103 | { | |
104 | unsigned long flags; | |
105 | ||
106 | local_irq_save(flags); | |
107 | ||
108 | latch_state &= ~clear; | |
109 | latch_state |= set; | |
110 | ||
111 | __raw_writel(latch_state, H1940_LATCH); | |
112 | ||
113 | local_irq_restore(flags); | |
114 | } | |
115 | ||
116 | EXPORT_SYMBOL_GPL(h1940_latch_control); | |
1da177e4 | 117 | |
71a9c424 AP |
118 | static void h1940_udc_pullup(enum s3c2410_udc_cmd_e cmd) |
119 | { | |
120 | printk(KERN_DEBUG "udc: pullup(%d)\n",cmd); | |
121 | ||
122 | switch (cmd) | |
123 | { | |
124 | case S3C2410_UDC_P_ENABLE : | |
125 | h1940_latch_control(0, H1940_LATCH_USB_DP); | |
126 | break; | |
127 | case S3C2410_UDC_P_DISABLE : | |
128 | h1940_latch_control(H1940_LATCH_USB_DP, 0); | |
129 | break; | |
130 | case S3C2410_UDC_P_RESET : | |
131 | break; | |
132 | default: | |
133 | break; | |
134 | } | |
135 | } | |
136 | ||
137 | static struct s3c2410_udc_mach_info h1940_udc_cfg __initdata = { | |
138 | .udc_command = h1940_udc_pullup, | |
070276d5 | 139 | .vbus_pin = S3C2410_GPG(5), |
71a9c424 AP |
140 | .vbus_pin_inverted = 1, |
141 | }; | |
142 | ||
143 | ||
f92273c1 AP |
144 | /** |
145 | * Set lcd on or off | |
146 | **/ | |
09fe75f6 | 147 | static struct s3c2410fb_display h1940_lcd __initdata = { |
f28ef573 KH |
148 | .lcdcon5= S3C2410_LCDCON5_FRM565 | \ |
149 | S3C2410_LCDCON5_INVVLINE | \ | |
150 | S3C2410_LCDCON5_HWSWP, | |
09fe75f6 | 151 | |
1f411537 | 152 | .type = S3C2410_LCDCON1_TFT, |
09fe75f6 KH |
153 | .width = 240, |
154 | .height = 320, | |
69816699 | 155 | .pixclock = 260000, |
09fe75f6 KH |
156 | .xres = 240, |
157 | .yres = 320, | |
158 | .bpp = 16, | |
1f411537 KH |
159 | .left_margin = 20, |
160 | .right_margin = 8, | |
93d11f5a | 161 | .hsync_len = 4, |
5f20f69b KH |
162 | .upper_margin = 8, |
163 | .lower_margin = 7, | |
93d11f5a | 164 | .vsync_len = 1, |
09fe75f6 KH |
165 | }; |
166 | ||
167 | static struct s3c2410fb_mach_info h1940_fb_info __initdata = { | |
09fe75f6 KH |
168 | .displays = &h1940_lcd, |
169 | .num_displays = 1, | |
170 | .default_display = 0, | |
171 | ||
f92273c1 AP |
172 | .lpcsel= 0x02, |
173 | .gpccon= 0xaa940659, | |
174 | .gpccon_mask= 0xffffffff, | |
175 | .gpcup= 0x0000ffff, | |
176 | .gpcup_mask= 0xffffffff, | |
177 | .gpdcon= 0xaa84aaa0, | |
178 | .gpdcon_mask= 0xffffffff, | |
179 | .gpdup= 0x0000faff, | |
180 | .gpdup_mask= 0xffffffff, | |
f92273c1 | 181 | }; |
1da177e4 | 182 | |
ff34aaa9 | 183 | static struct platform_device h1940_device_leds = { |
d2a76020 AP |
184 | .name = "h1940-leds", |
185 | .id = -1, | |
186 | }; | |
187 | ||
ff34aaa9 | 188 | static struct platform_device h1940_device_bluetooth = { |
7fdc7849 AP |
189 | .name = "h1940-bt", |
190 | .id = -1, | |
191 | }; | |
192 | ||
3909b9f7 | 193 | static struct s3c24xx_mci_pdata h1940_mmc_cfg = { |
194 | .gpio_detect = S3C2410_GPF(5), | |
195 | .gpio_wprotect = S3C2410_GPH(8), | |
196 | .set_power = NULL, | |
197 | .ocr_avail = MMC_VDD_32_33, | |
198 | }; | |
199 | ||
22e649ff | 200 | static int h1940_backlight_init(struct device *dev) |
201 | { | |
202 | gpio_request(S3C2410_GPB(0), "Backlight"); | |
203 | ||
204 | s3c2410_gpio_setpin(S3C2410_GPB(0), 0); | |
205 | s3c2410_gpio_pullup(S3C2410_GPB(0), 0); | |
206 | s3c2410_gpio_cfgpin(S3C2410_GPB(0), S3C2410_GPB0_TOUT0); | |
207 | ||
208 | return 0; | |
209 | } | |
210 | ||
211 | static void h1940_backlight_exit(struct device *dev) | |
212 | { | |
213 | s3c2410_gpio_cfgpin(S3C2410_GPB(0), 1/*S3C2410_GPB0_OUTP*/); | |
214 | } | |
215 | ||
216 | static struct platform_pwm_backlight_data backlight_data = { | |
217 | .pwm_id = 0, | |
218 | .max_brightness = 100, | |
219 | .dft_brightness = 50, | |
220 | /* tcnt = 0x31 */ | |
221 | .pwm_period_ns = 36296, | |
222 | .init = h1940_backlight_init, | |
223 | .exit = h1940_backlight_exit, | |
224 | }; | |
225 | ||
226 | static struct platform_device h1940_backlight = { | |
227 | .name = "pwm-backlight", | |
228 | .dev = { | |
229 | .parent = &s3c_device_timer[0].dev, | |
230 | .platform_data = &backlight_data, | |
231 | }, | |
232 | .id = -1, | |
233 | }; | |
234 | ||
235 | static void h1940_lcd_power_set(struct plat_lcd_data *pd, | |
236 | unsigned int power) | |
237 | { | |
238 | int value; | |
239 | ||
240 | if (!power) { | |
241 | /* set to 3ec */ | |
242 | s3c2410_gpio_setpin(S3C2410_GPC(0), 0); | |
243 | /* wait for 3ac */ | |
244 | do { | |
245 | value = s3c2410_gpio_getpin(S3C2410_GPC(6)); | |
246 | } while (value); | |
247 | /* set to 38c */ | |
248 | s3c2410_gpio_setpin(S3C2410_GPC(5), 0); | |
249 | } else { | |
250 | /* Set to 3ac */ | |
251 | s3c2410_gpio_setpin(S3C2410_GPC(5), 1); | |
252 | /* Set to 3ad */ | |
253 | s3c2410_gpio_setpin(S3C2410_GPC(0), 1); | |
254 | } | |
255 | } | |
256 | ||
257 | static struct plat_lcd_data h1940_lcd_power_data = { | |
258 | .set_power = h1940_lcd_power_set, | |
259 | }; | |
260 | ||
261 | static struct platform_device h1940_lcd_powerdev = { | |
262 | .name = "platform-lcd", | |
263 | .dev.parent = &s3c_device_lcd.dev, | |
264 | .dev.platform_data = &h1940_lcd_power_data, | |
265 | }; | |
266 | ||
1da177e4 LT |
267 | static struct platform_device *h1940_devices[] __initdata = { |
268 | &s3c_device_usb, | |
269 | &s3c_device_lcd, | |
270 | &s3c_device_wdt, | |
3e1b776c | 271 | &s3c_device_i2c0, |
1da177e4 | 272 | &s3c_device_iis, |
71a9c424 | 273 | &s3c_device_usbgadget, |
ff34aaa9 BD |
274 | &h1940_device_leds, |
275 | &h1940_device_bluetooth, | |
3909b9f7 | 276 | &s3c_device_sdi, |
13733d52 | 277 | &s3c_device_rtc, |
22e649ff | 278 | &s3c_device_timer[0], |
279 | &h1940_backlight, | |
280 | &h1940_lcd_powerdev, | |
1da177e4 LT |
281 | }; |
282 | ||
5fe10ab1 | 283 | static void __init h1940_map_io(void) |
1da177e4 LT |
284 | { |
285 | s3c24xx_init_io(h1940_iodesc, ARRAY_SIZE(h1940_iodesc)); | |
286 | s3c24xx_init_clocks(0); | |
287 | s3c24xx_init_uarts(h1940_uartcfgs, ARRAY_SIZE(h1940_uartcfgs)); | |
9073341c BD |
288 | |
289 | /* setup PM */ | |
290 | ||
b1dfe1f1 | 291 | #ifdef CONFIG_PM_H1940 |
9073341c | 292 | memcpy(phys_to_virt(H1940_SUSPEND_RESUMEAT), h1940_pm_return, 1024); |
b1dfe1f1 | 293 | #endif |
4e59c25d | 294 | s3c_pm_init(); |
1da177e4 LT |
295 | } |
296 | ||
5fe10ab1 | 297 | static void __init h1940_init_irq(void) |
1da177e4 LT |
298 | { |
299 | s3c24xx_init_irq(); | |
1da177e4 LT |
300 | } |
301 | ||
5fe10ab1 | 302 | static void __init h1940_init(void) |
f92273c1 | 303 | { |
71a9c424 AP |
304 | u32 tmp; |
305 | ||
09fe75f6 | 306 | s3c24xx_fb_set_platdata(&h1940_fb_info); |
71a9c424 | 307 | s3c24xx_udc_set_platdata(&h1940_udc_cfg); |
3e1b776c | 308 | s3c_i2c0_set_platdata(NULL); |
71a9c424 | 309 | |
3909b9f7 | 310 | s3c_device_sdi.dev.platform_data = &h1940_mmc_cfg; |
311 | ||
71a9c424 AP |
312 | /* Turn off suspend on both USB ports, and switch the |
313 | * selectable USB port to USB device mode. */ | |
314 | ||
315 | s3c2410_modify_misccr(S3C2410_MISCCR_USBHOST | | |
316 | S3C2410_MISCCR_USBSUSPND0 | | |
317 | S3C2410_MISCCR_USBSUSPND1, 0x0); | |
318 | ||
e24b864a BD |
319 | tmp = (0x78 << S3C24XX_PLLCON_MDIVSHIFT) |
320 | | (0x02 << S3C24XX_PLLCON_PDIVSHIFT) | |
321 | | (0x03 << S3C24XX_PLLCON_SDIVSHIFT); | |
71a9c424 | 322 | writel(tmp, S3C2410_UPLLCON); |
57e5171c | 323 | |
22e649ff | 324 | gpio_request(S3C2410_GPC(0), "LCD power"); |
325 | gpio_request(S3C2410_GPC(5), "LCD power"); | |
326 | gpio_request(S3C2410_GPC(6), "LCD power"); | |
327 | ||
328 | ||
57e5171c | 329 | platform_add_devices(h1940_devices, ARRAY_SIZE(h1940_devices)); |
f92273c1 AP |
330 | } |
331 | ||
1da177e4 | 332 | MACHINE_START(H1940, "IPAQ-H1940") |
e9dea0c6 | 333 | /* Maintainer: Ben Dooks <ben@fluff.org> */ |
e9dea0c6 RK |
334 | .phys_io = S3C2410_PA_UART, |
335 | .io_pg_offst = (((u32)S3C24XX_VA_UART) >> 18) & 0xfffc, | |
336 | .boot_params = S3C2410_SDRAM_PA + 0x100, | |
337 | .map_io = h1940_map_io, | |
338 | .init_irq = h1940_init_irq, | |
71a9c424 | 339 | .init_machine = h1940_init, |
1da177e4 LT |
340 | .timer = &s3c24xx_timer, |
341 | MACHINE_END |