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11#include <linux/kernel.h>
12#include <linux/init.h>
13#include <linux/serial_core.h>
14#include <linux/serial_s3c.h>
15#include <linux/platform_device.h>
16#include <linux/io.h>
17#include <linux/i2c.h>
18#include <linux/fb.h>
19#include <linux/gpio.h>
20#include <linux/delay.h>
21#include <linux/leds.h>
22#include <linux/pwm.h>
23#include <linux/pwm_backlight.h>
24#include <linux/mtd/mtd.h>
25#include <linux/mtd/partitions.h>
26
27#include <asm/mach/arch.h>
28#include <asm/mach/map.h>
29#include <asm/mach/irq.h>
30
31#include <video/samsung_fimd.h>
32#include <mach/hardware.h>
33#include <mach/map.h>
34#include <mach/irqs.h>
35
36#include <asm/irq.h>
37#include <asm/mach-types.h>
38
39#include <linux/platform_data/i2c-s3c2410.h>
40#include <mach/gpio-samsung.h>
41#include <plat/fb.h>
42#include <linux/platform_data/mtd-nand-s3c2410.h>
43
44#include <plat/devs.h>
45#include <plat/cpu.h>
46#include <plat/samsung-time.h>
47
48#include "common.h"
49
50#define UCON S3C2410_UCON_DEFAULT
51#define ULCON (S3C2410_LCON_CS8 | S3C2410_LCON_PNONE)
52#define UFCON (S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE)
53
54static struct s3c2410_uartcfg hmt_uartcfgs[] __initdata = {
55 [0] = {
56 .hwport = 0,
57 .flags = 0,
58 .ucon = UCON,
59 .ulcon = ULCON,
60 .ufcon = UFCON,
61 },
62 [1] = {
63 .hwport = 1,
64 .flags = 0,
65 .ucon = UCON,
66 .ulcon = ULCON,
67 .ufcon = UFCON,
68 },
69 [2] = {
70 .hwport = 2,
71 .flags = 0,
72 .ucon = UCON,
73 .ulcon = ULCON,
74 .ufcon = UFCON,
75 },
76};
77
78static struct pwm_lookup hmt_pwm_lookup[] = {
79 PWM_LOOKUP("samsung-pwm", 1, "pwm-backlight.0", NULL,
80 1000000000 / (100 * 256 * 20), PWM_POLARITY_NORMAL),
81};
82
83static int hmt_bl_init(struct device *dev)
84{
85 int ret;
86
87 ret = gpio_request(S3C64XX_GPB(4), "lcd backlight enable");
88 if (!ret)
89 ret = gpio_direction_output(S3C64XX_GPB(4), 0);
90
91 return ret;
92}
93
94static int hmt_bl_notify(struct device *dev, int brightness)
95{
96
97
98
99
100 if (brightness < 0x800) {
101
102 brightness = (100*256 * brightness + 231245/2) / 231245;
103 } else {
104
105 int t = (brightness*4 + 16*1024 + 58)/116;
106 brightness = 25 * ((t * t * t + 0x100000/2) / 0x100000);
107 }
108
109 gpio_set_value(S3C64XX_GPB(4), brightness);
110
111 return brightness;
112}
113
114static void hmt_bl_exit(struct device *dev)
115{
116 gpio_free(S3C64XX_GPB(4));
117}
118
119static struct platform_pwm_backlight_data hmt_backlight_data = {
120 .max_brightness = 100 * 256,
121 .dft_brightness = 40 * 256,
122 .enable_gpio = -1,
123 .init = hmt_bl_init,
124 .notify = hmt_bl_notify,
125 .exit = hmt_bl_exit,
126
127};
128
129static struct platform_device hmt_backlight_device = {
130 .name = "pwm-backlight",
131 .dev = {
132 .parent = &samsung_device_pwm.dev,
133 .platform_data = &hmt_backlight_data,
134 },
135};
136
137static struct s3c_fb_pd_win hmt_fb_win0 = {
138 .max_bpp = 32,
139 .default_bpp = 16,
140 .xres = 800,
141 .yres = 480,
142};
143
144static struct fb_videomode hmt_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
156static struct s3c_fb_platdata hmt_lcd_pdata __initdata = {
157 .setup_gpio = s3c64xx_fb_gpio_setup_24bpp,
158 .vtiming = &hmt_lcd_timing,
159 .win[0] = &hmt_fb_win0,
160 .vidcon0 = VIDCON0_VIDOUT_RGB | VIDCON0_PNRMODE_RGB,
161 .vidcon1 = VIDCON1_INV_HSYNC | VIDCON1_INV_VSYNC,
162};
163
164static struct mtd_partition hmt_nand_part[] = {
165 [0] = {
166 .name = "uboot",
167 .size = SZ_512K,
168 .offset = 0,
169 },
170 [1] = {
171 .name = "uboot-env1",
172 .size = SZ_256K,
173 .offset = SZ_512K,
174 },
175 [2] = {
176 .name = "uboot-env2",
177 .size = SZ_256K,
178 .offset = SZ_512K + SZ_256K,
179 },
180 [3] = {
181 .name = "kernel",
182 .size = SZ_2M,
183 .offset = SZ_1M,
184 },
185 [4] = {
186 .name = "rootfs",
187 .size = MTDPART_SIZ_FULL,
188 .offset = SZ_1M + SZ_2M,
189 },
190};
191
192static struct s3c2410_nand_set hmt_nand_sets[] = {
193 [0] = {
194 .name = "nand",
195 .nr_chips = 1,
196 .nr_partitions = ARRAY_SIZE(hmt_nand_part),
197 .partitions = hmt_nand_part,
198 },
199};
200
201static struct s3c2410_platform_nand hmt_nand_info = {
202 .tacls = 25,
203 .twrph0 = 55,
204 .twrph1 = 40,
205 .nr_sets = ARRAY_SIZE(hmt_nand_sets),
206 .sets = hmt_nand_sets,
207 .ecc_mode = NAND_ECC_SOFT,
208};
209
210static struct gpio_led hmt_leds[] = {
211 {
212 .name = "left:blue",
213 .gpio = S3C64XX_GPO(12),
214 .default_trigger = "default-on",
215 },
216 {
217 .name = "right:red",
218 .gpio = S3C64XX_GPO(13),
219 },
220 {
221 .name = "right:green",
222 .gpio = S3C64XX_GPO(14),
223 },
224 {
225 .name = "right:blue",
226 .gpio = S3C64XX_GPO(15),
227 .default_trigger = "default-on",
228 },
229};
230
231static struct gpio_led_platform_data hmt_led_data = {
232 .num_leds = ARRAY_SIZE(hmt_leds),
233 .leds = hmt_leds,
234};
235
236static struct platform_device hmt_leds_device = {
237 .name = "leds-gpio",
238 .id = -1,
239 .dev.platform_data = &hmt_led_data,
240};
241
242static struct map_desc hmt_iodesc[] = {};
243
244static struct platform_device *hmt_devices[] __initdata = {
245 &s3c_device_i2c0,
246 &s3c_device_nand,
247 &s3c_device_fb,
248 &s3c_device_ohci,
249 &samsung_device_pwm,
250 &hmt_backlight_device,
251 &hmt_leds_device,
252};
253
254static void __init hmt_map_io(void)
255{
256 s3c64xx_init_io(hmt_iodesc, ARRAY_SIZE(hmt_iodesc));
257 s3c64xx_set_xtal_freq(12000000);
258 s3c24xx_init_uarts(hmt_uartcfgs, ARRAY_SIZE(hmt_uartcfgs));
259 samsung_set_timer_source(SAMSUNG_PWM3, SAMSUNG_PWM4);
260}
261
262static void __init hmt_machine_init(void)
263{
264 s3c_i2c0_set_platdata(NULL);
265 s3c_fb_set_platdata(&hmt_lcd_pdata);
266 s3c_nand_set_platdata(&hmt_nand_info);
267
268 gpio_request(S3C64XX_GPC(7), "usb power");
269 gpio_direction_output(S3C64XX_GPC(7), 0);
270 gpio_request(S3C64XX_GPM(0), "usb power");
271 gpio_direction_output(S3C64XX_GPM(0), 1);
272 gpio_request(S3C64XX_GPK(7), "usb power");
273 gpio_direction_output(S3C64XX_GPK(7), 1);
274 gpio_request(S3C64XX_GPF(13), "usb power");
275 gpio_direction_output(S3C64XX_GPF(13), 1);
276
277 pwm_add_table(hmt_pwm_lookup, ARRAY_SIZE(hmt_pwm_lookup));
278 platform_add_devices(hmt_devices, ARRAY_SIZE(hmt_devices));
279}
280
281MACHINE_START(HMT, "Airgoo-HMT")
282
283 .atag_offset = 0x100,
284 .nr_irqs = S3C64XX_NR_IRQS,
285 .init_irq = s3c6410_init_irq,
286 .map_io = hmt_map_io,
287 .init_machine = hmt_machine_init,
288 .init_time = samsung_timer_init,
289 .restart = s3c64xx_restart,
290MACHINE_END
291
