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 *
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>
20 #include <linux/sysdev.h>
21 #include <linux/serial_core.h>
22 #include <linux/platform_device.h>
23
24 #include <asm/mach/arch.h>
25 #include <asm/mach/map.h>
26 #include <asm/mach/irq.h>
27
28 #include <asm/hardware.h>
29 #include <asm/io.h>
30 #include <asm/irq.h>
31 #include <asm/mach-types.h>
32
33 #include <asm/plat-s3c/regs-serial.h>
34 #include <asm/arch/regs-lcd.h>
35 #include <asm/arch/regs-gpio.h>
36 #include <asm/arch/regs-clock.h>
37
38 #include <asm/arch/h1940.h>
39 #include <asm/arch/h1940-latch.h>
40 #include <asm/arch/fb.h>
41 #include <asm/plat-s3c24xx/udc.h>
42
43 #include <asm/plat-s3c24xx/clock.h>
44 #include <asm/plat-s3c24xx/devs.h>
45 #include <asm/plat-s3c24xx/cpu.h>
46 #include <asm/plat-s3c24xx/pm.h>
47
48 static struct map_desc h1940_iodesc[] __initdata = {
49 [0] = {
50 .virtual = (unsigned long)H1940_LATCH,
51 .pfn = __phys_to_pfn(H1940_PA_LATCH),
52 .length = SZ_16K,
53 .type = MT_DEVICE
54 },
55 };
56
57 #define UCON S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK
58 #define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
59 #define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
60
61 static struct s3c2410_uartcfg h1940_uartcfgs[] __initdata = {
62 [0] = {
63 .hwport = 0,
64 .flags = 0,
65 .ucon = 0x3c5,
66 .ulcon = 0x03,
67 .ufcon = 0x51,
68 },
69 [1] = {
70 .hwport = 1,
71 .flags = 0,
72 .ucon = 0x245,
73 .ulcon = 0x03,
74 .ufcon = 0x00,
75 },
76 /* IR port */
77 [2] = {
78 .hwport = 2,
79 .flags = 0,
80 .uart_flags = UPF_CONS_FLOW,
81 .ucon = 0x3c5,
82 .ulcon = 0x43,
83 .ufcon = 0x51,
84 }
85 };
86
87 /* Board control latch control */
88
89 static unsigned int latch_state = H1940_LATCH_DEFAULT;
90
91 void h1940_latch_control(unsigned int clear, unsigned int set)
92 {
93 unsigned long flags;
94
95 local_irq_save(flags);
96
97 latch_state &= ~clear;
98 latch_state |= set;
99
100 __raw_writel(latch_state, H1940_LATCH);
101
102 local_irq_restore(flags);
103 }
104
105 EXPORT_SYMBOL_GPL(h1940_latch_control);
106
107 static void h1940_udc_pullup(enum s3c2410_udc_cmd_e cmd)
108 {
109 printk(KERN_DEBUG "udc: pullup(%d)\n",cmd);
110
111 switch (cmd)
112 {
113 case S3C2410_UDC_P_ENABLE :
114 h1940_latch_control(0, H1940_LATCH_USB_DP);
115 break;
116 case S3C2410_UDC_P_DISABLE :
117 h1940_latch_control(H1940_LATCH_USB_DP, 0);
118 break;
119 case S3C2410_UDC_P_RESET :
120 break;
121 default:
122 break;
123 }
124 }
125
126 static struct s3c2410_udc_mach_info h1940_udc_cfg __initdata = {
127 .udc_command = h1940_udc_pullup,
128 .vbus_pin = S3C2410_GPG5,
129 .vbus_pin_inverted = 1,
130 };
131
132
133 /**
134 * Set lcd on or off
135 **/
136 static struct s3c2410fb_display h1940_lcd __initdata = {
137 .lcdcon5= S3C2410_LCDCON5_FRM565 | \
138 S3C2410_LCDCON5_INVVLINE | \
139 S3C2410_LCDCON5_HWSWP,
140
141 .type = S3C2410_LCDCON1_TFT,
142 .width = 240,
143 .height = 320,
144 .pixclock = 260000,
145 .xres = 240,
146 .yres = 320,
147 .bpp = 16,
148 .left_margin = 20,
149 .right_margin = 8,
150 .hsync_len = 4,
151 .upper_margin = 8,
152 .lower_margin = 7,
153 .vsync_len = 1,
154 };
155
156 static struct s3c2410fb_mach_info h1940_fb_info __initdata = {
157 .displays = &h1940_lcd,
158 .num_displays = 1,
159 .default_display = 0,
160
161 .lpcsel= 0x02,
162 .gpccon= 0xaa940659,
163 .gpccon_mask= 0xffffffff,
164 .gpcup= 0x0000ffff,
165 .gpcup_mask= 0xffffffff,
166 .gpdcon= 0xaa84aaa0,
167 .gpdcon_mask= 0xffffffff,
168 .gpdup= 0x0000faff,
169 .gpdup_mask= 0xffffffff,
170 };
171
172 static struct platform_device s3c_device_leds = {
173 .name = "h1940-leds",
174 .id = -1,
175 };
176
177 static struct platform_device s3c_device_bluetooth = {
178 .name = "h1940-bt",
179 .id = -1,
180 };
181
182 static struct platform_device *h1940_devices[] __initdata = {
183 &s3c_device_usb,
184 &s3c_device_lcd,
185 &s3c_device_wdt,
186 &s3c_device_i2c,
187 &s3c_device_iis,
188 &s3c_device_usbgadget,
189 &s3c_device_leds,
190 &s3c_device_bluetooth,
191 };
192
193 static void __init h1940_map_io(void)
194 {
195 s3c24xx_init_io(h1940_iodesc, ARRAY_SIZE(h1940_iodesc));
196 s3c24xx_init_clocks(0);
197 s3c24xx_init_uarts(h1940_uartcfgs, ARRAY_SIZE(h1940_uartcfgs));
198
199 /* setup PM */
200
201 #ifdef CONFIG_PM_H1940
202 memcpy(phys_to_virt(H1940_SUSPEND_RESUMEAT), h1940_pm_return, 1024);
203 #endif
204 s3c2410_pm_init();
205 }
206
207 static void __init h1940_init_irq(void)
208 {
209 s3c24xx_init_irq();
210 }
211
212 static void __init h1940_init(void)
213 {
214 u32 tmp;
215
216 s3c24xx_fb_set_platdata(&h1940_fb_info);
217 s3c24xx_udc_set_platdata(&h1940_udc_cfg);
218
219 /* Turn off suspend on both USB ports, and switch the
220 * selectable USB port to USB device mode. */
221
222 s3c2410_modify_misccr(S3C2410_MISCCR_USBHOST |
223 S3C2410_MISCCR_USBSUSPND0 |
224 S3C2410_MISCCR_USBSUSPND1, 0x0);
225
226 tmp = (
227 0x78 << S3C2410_PLLCON_MDIVSHIFT)
228 | (0x02 << S3C2410_PLLCON_PDIVSHIFT)
229 | (0x03 << S3C2410_PLLCON_SDIVSHIFT);
230 writel(tmp, S3C2410_UPLLCON);
231
232 platform_add_devices(h1940_devices, ARRAY_SIZE(h1940_devices));
233 }
234
235 MACHINE_START(H1940, "IPAQ-H1940")
236 /* Maintainer: Ben Dooks <ben@fluff.org> */
237 .phys_io = S3C2410_PA_UART,
238 .io_pg_offst = (((u32)S3C24XX_VA_UART) >> 18) & 0xfffc,
239 .boot_params = S3C2410_SDRAM_PA + 0x100,
240 .map_io = h1940_map_io,
241 .init_irq = h1940_init_irq,
242 .init_machine = h1940_init,
243 .timer = &s3c24xx_timer,
244 MACHINE_END
245
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