1 /* linux/arch/arm/mach-s3c64xx/mach-anw6410.c
2 *
3 * Copyright 2008 Openmoko, Inc.
4 * Copyright 2008 Simtec Electronics
5 * Ben Dooks <ben@simtec.co.uk>
6 * http://armlinux.simtec.co.uk/
7 * Copyright 2009 Kwangwoo Lee
8 * Kwangwoo Lee <kwangwoo.lee@gmail.com>
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License version 2 as
12 * published by the Free Software Foundation.
13 *
14 */
15
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/serial_core.h>
23 #include <linux/serial_s3c.h>
24 #include <linux/platform_device.h>
25 #include <linux/io.h>
26 #include <linux/i2c.h>
27 #include <linux/fb.h>
28 #include <linux/gpio.h>
29 #include <linux/delay.h>
30 #include <linux/dm9000.h>
31
32 #include <video/platform_lcd.h>
33 #include <video/samsung_fimd.h>
34
35 #include <asm/mach/arch.h>
36 #include <asm/mach/map.h>
37 #include <asm/mach/irq.h>
38
39 #include <mach/hardware.h>
40 #include <mach/map.h>
41
42 #include <asm/irq.h>
43 #include <asm/mach-types.h>
44
45 #include <linux/platform_data/i2c-s3c2410.h>
46 #include <plat/fb.h>
47
48 #include <plat/devs.h>
49 #include <plat/cpu.h>
50 #include <mach/irqs.h>
51 #include <mach/regs-gpio.h>
52 #include <mach/gpio-samsung.h>
53 #include <plat/samsung-time.h>
54
55 #include "common.h"
56 #include "regs-modem.h"
57
58 /* DM9000 */
59 #define ANW6410_PA_DM9000 (0x18000000)
60
61 /* A hardware buffer to control external devices is mapped at 0x30000000.
62 * It can not be read. So current status must be kept in anw6410_extdev_status.
63 */
64 #define ANW6410_VA_EXTDEV S3C_ADDR(0x02000000)
65 #define ANW6410_PA_EXTDEV (0x30000000)
66
67 #define ANW6410_EN_DM9000 (1<<11)
68 #define ANW6410_EN_LCD (1<<14)
69
70 static __u32 anw6410_extdev_status;
71
72 static struct s3c2410_uartcfg anw6410_uartcfgs[] __initdata = {
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 = 0x3c5,
84 .ulcon = 0x03,
85 .ufcon = 0x51,
86 },
87 };
88
89 /* framebuffer and LCD setup. */
anw6410_lcd_mode_set(void)90 static void __init anw6410_lcd_mode_set(void)
91 {
92 u32 tmp;
93
94 /* set the LCD type */
95 tmp = __raw_readl(S3C64XX_SPCON);
96 tmp &= ~S3C64XX_SPCON_LCD_SEL_MASK;
97 tmp |= S3C64XX_SPCON_LCD_SEL_RGB;
98 __raw_writel(tmp, S3C64XX_SPCON);
99
100 /* remove the LCD bypass */
101 tmp = __raw_readl(S3C64XX_MODEM_MIFPCON);
102 tmp &= ~MIFPCON_LCD_BYPASS;
103 __raw_writel(tmp, S3C64XX_MODEM_MIFPCON);
104 }
105
106 /* GPF1 = LCD panel power
107 * GPF4 = LCD backlight control
108 */
anw6410_lcd_power_set(struct plat_lcd_data * pd,unsigned int power)109 static void anw6410_lcd_power_set(struct plat_lcd_data *pd,
110 unsigned int power)
111 {
112 if (power) {
113 anw6410_extdev_status |= (ANW6410_EN_LCD << 16);
114 __raw_writel(anw6410_extdev_status, ANW6410_VA_EXTDEV);
115
116 gpio_direction_output(S3C64XX_GPF(1), 1);
117 gpio_direction_output(S3C64XX_GPF(4), 1);
118 } else {
119 anw6410_extdev_status &= ~(ANW6410_EN_LCD << 16);
120 __raw_writel(anw6410_extdev_status, ANW6410_VA_EXTDEV);
121
122 gpio_direction_output(S3C64XX_GPF(1), 0);
123 gpio_direction_output(S3C64XX_GPF(4), 0);
124 }
125 }
126
127 static struct plat_lcd_data anw6410_lcd_power_data = {
128 .set_power = anw6410_lcd_power_set,
129 };
130
131 static struct platform_device anw6410_lcd_powerdev = {
132 .name = "platform-lcd",
133 .dev.parent = &s3c_device_fb.dev,
134 .dev.platform_data = &anw6410_lcd_power_data,
135 };
136
137 static struct s3c_fb_pd_win anw6410_fb_win0 = {
138 .max_bpp = 32,
139 .default_bpp = 16,
140 .xres = 800,
141 .yres = 480,
142 };
143
144 static struct fb_videomode anw6410_lcd_timing = {
145 .left_margin = 8,
146 .right_margin = 13,
147 .upper_margin = 7,
148 .lower_margin = 5,
149 .hsync_len = 3,
150 .vsync_len = 1,
151 .xres = 800,
152 .yres = 480,
153 };
154
155 /* 405566 clocks per frame => 60Hz refresh requires 24333960Hz clock */
156 static struct s3c_fb_platdata anw6410_lcd_pdata __initdata = {
157 .setup_gpio = s3c64xx_fb_gpio_setup_24bpp,
158 .vtiming = &anw6410_lcd_timing,
159 .win[0] = &anw6410_fb_win0,
160 .vidcon0 = VIDCON0_VIDOUT_RGB | VIDCON0_PNRMODE_RGB,
161 .vidcon1 = VIDCON1_INV_HSYNC | VIDCON1_INV_VSYNC,
162 };
163
164 /* DM9000AEP 10/100 ethernet controller */
anw6410_dm9000_enable(void)165 static void __init anw6410_dm9000_enable(void)
166 {
167 anw6410_extdev_status |= (ANW6410_EN_DM9000 << 16);
168 __raw_writel(anw6410_extdev_status, ANW6410_VA_EXTDEV);
169 }
170
171 static struct resource anw6410_dm9000_resource[] = {
172 [0] = DEFINE_RES_MEM(ANW6410_PA_DM9000, 4),
173 [1] = DEFINE_RES_MEM(ANW6410_PA_DM9000 + 4, 501),
174 [2] = DEFINE_RES_NAMED(IRQ_EINT(15), 1, NULL, IORESOURCE_IRQ \
175 | IRQF_TRIGGER_HIGH),
176 };
177
178 static struct dm9000_plat_data anw6410_dm9000_pdata = {
179 .flags = (DM9000_PLATF_16BITONLY | DM9000_PLATF_NO_EEPROM),
180 /* dev_addr can be set to provide hwaddr. */
181 };
182
183 static struct platform_device anw6410_device_eth = {
184 .name = "dm9000",
185 .id = -1,
186 .num_resources = ARRAY_SIZE(anw6410_dm9000_resource),
187 .resource = anw6410_dm9000_resource,
188 .dev = {
189 .platform_data = &anw6410_dm9000_pdata,
190 },
191 };
192
193 static struct map_desc anw6410_iodesc[] __initdata = {
194 {
195 .virtual = (unsigned long)ANW6410_VA_EXTDEV,
196 .pfn = __phys_to_pfn(ANW6410_PA_EXTDEV),
197 .length = SZ_64K,
198 .type = MT_DEVICE,
199 },
200 };
201
202 static struct platform_device *anw6410_devices[] __initdata = {
203 &s3c_device_fb,
204 &anw6410_lcd_powerdev,
205 &anw6410_device_eth,
206 };
207
anw6410_map_io(void)208 static void __init anw6410_map_io(void)
209 {
210 s3c64xx_init_io(anw6410_iodesc, ARRAY_SIZE(anw6410_iodesc));
211 s3c64xx_set_xtal_freq(12000000);
212 s3c24xx_init_uarts(anw6410_uartcfgs, ARRAY_SIZE(anw6410_uartcfgs));
213 samsung_set_timer_source(SAMSUNG_PWM3, SAMSUNG_PWM4);
214
215 anw6410_lcd_mode_set();
216 }
217
anw6410_machine_init(void)218 static void __init anw6410_machine_init(void)
219 {
220 s3c_fb_set_platdata(&anw6410_lcd_pdata);
221
222 gpio_request(S3C64XX_GPF(1), "panel power");
223 gpio_request(S3C64XX_GPF(4), "LCD backlight");
224
225 anw6410_dm9000_enable();
226
227 platform_add_devices(anw6410_devices, ARRAY_SIZE(anw6410_devices));
228 }
229
230 MACHINE_START(ANW6410, "A&W6410")
231 /* Maintainer: Kwangwoo Lee <kwangwoo.lee@gmail.com> */
232 .atag_offset = 0x100,
233 .nr_irqs = S3C64XX_NR_IRQS,
234 .init_irq = s3c6410_init_irq,
235 .map_io = anw6410_map_io,
236 .init_machine = anw6410_machine_init,
237 .init_time = samsung_timer_init,
238 .restart = s3c64xx_restart,
239 MACHINE_END
240