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2896bda4 PK |
1 | /* mach-hmt.c - Platform code for Airgoo HMT |
2 | * | |
3 | * Copyright 2009 Peter Korsgaard <jacmet@sunsite.dk> | |
4 | * | |
5 | * This program is free software; you can redistribute it and/or modify | |
6 | * it under the terms of the GNU General Public License version 2 as | |
7 | * published by the Free Software Foundation. | |
8 | * | |
9 | */ | |
10 | ||
11 | #include <linux/kernel.h> | |
12 | #include <linux/init.h> | |
13 | #include <linux/serial_core.h> | |
334a1c70 | 14 | #include <linux/serial_s3c.h> |
2896bda4 PK |
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> | |
dd39be62 | 22 | #include <linux/pwm.h> |
2896bda4 PK |
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 | ||
5a213a55 | 31 | #include <video/samsung_fimd.h> |
2896bda4 | 32 | #include <mach/hardware.h> |
2896bda4 | 33 | #include <mach/map.h> |
ba279044 | 34 | #include <mach/irqs.h> |
2896bda4 PK |
35 | |
36 | #include <asm/irq.h> | |
37 | #include <asm/mach-types.h> | |
38 | ||
436d42c6 | 39 | #include <linux/platform_data/i2c-s3c2410.h> |
b0161caa | 40 | #include <mach/gpio-samsung.h> |
2896bda4 | 41 | #include <plat/fb.h> |
436d42c6 | 42 | #include <linux/platform_data/mtd-nand-s3c2410.h> |
2896bda4 | 43 | |
2896bda4 PK |
44 | #include <plat/devs.h> |
45 | #include <plat/cpu.h> | |
04a49b71 | 46 | #include <plat/samsung-time.h> |
2896bda4 | 47 | |
b024043b KK |
48 | #include "common.h" |
49 | ||
2896bda4 PK |
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 | ||
54 | static 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 | ||
dd39be62 TR |
78 | static 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 | ||
2896bda4 PK |
83 | static 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 | ||
1619ce11 | 94 | static int hmt_bl_notify(struct device *dev, int brightness) |
2896bda4 PK |
95 | { |
96 | /* | |
97 | * translate from CIELUV/CIELAB L*->brightness, E.G. from | |
98 | * perceived luminance to light output. Assumes range 0..25600 | |
99 | */ | |
100 | if (brightness < 0x800) { | |
101 | /* Y = Yn * L / 903.3 */ | |
102 | brightness = (100*256 * brightness + 231245/2) / 231245; | |
103 | } else { | |
104 | /* Y = Yn * ((L + 16) / 116 )^3 */ | |
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 | ||
114 | static void hmt_bl_exit(struct device *dev) | |
115 | { | |
116 | gpio_free(S3C64XX_GPB(4)); | |
117 | } | |
118 | ||
119 | static struct platform_pwm_backlight_data hmt_backlight_data = { | |
2896bda4 PK |
120 | .max_brightness = 100 * 256, |
121 | .dft_brightness = 40 * 256, | |
a63652f1 | 122 | .enable_gpio = -1, |
2896bda4 PK |
123 | .init = hmt_bl_init, |
124 | .notify = hmt_bl_notify, | |
125 | .exit = hmt_bl_exit, | |
126 | ||
127 | }; | |
128 | ||
129 | static struct platform_device hmt_backlight_device = { | |
130 | .name = "pwm-backlight", | |
131 | .dev = { | |
7fa33bdb | 132 | .parent = &samsung_device_pwm.dev, |
2896bda4 PK |
133 | .platform_data = &hmt_backlight_data, |
134 | }, | |
135 | }; | |
136 | ||
137 | static struct s3c_fb_pd_win hmt_fb_win0 = { | |
2896bda4 PK |
138 | .max_bpp = 32, |
139 | .default_bpp = 16, | |
79d3c41a TA |
140 | .xres = 800, |
141 | .yres = 480, | |
142 | }; | |
143 | ||
144 | static 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, | |
2896bda4 PK |
153 | }; |
154 | ||
155 | /* 405566 clocks per frame => 60Hz refresh requires 24333960Hz clock */ | |
156 | static struct s3c_fb_platdata hmt_lcd_pdata __initdata = { | |
157 | .setup_gpio = s3c64xx_fb_gpio_setup_24bpp, | |
79d3c41a | 158 | .vtiming = &hmt_lcd_timing, |
2896bda4 PK |
159 | .win[0] = &hmt_fb_win0, |
160 | .vidcon0 = VIDCON0_VIDOUT_RGB | VIDCON0_PNRMODE_RGB, | |
161 | .vidcon1 = VIDCON1_INV_HSYNC | VIDCON1_INV_VSYNC, | |
162 | }; | |
163 | ||
164 | static 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 | ||
192 | static 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 | ||
201 | static 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 | }; | |
208 | ||
209 | static struct gpio_led hmt_leds[] = { | |
210 | { /* left function keys */ | |
211 | .name = "left:blue", | |
212 | .gpio = S3C64XX_GPO(12), | |
213 | .default_trigger = "default-on", | |
214 | }, | |
215 | { /* right function keys - red */ | |
216 | .name = "right:red", | |
217 | .gpio = S3C64XX_GPO(13), | |
218 | }, | |
219 | { /* right function keys - green */ | |
220 | .name = "right:green", | |
221 | .gpio = S3C64XX_GPO(14), | |
222 | }, | |
223 | { /* right function keys - blue */ | |
224 | .name = "right:blue", | |
225 | .gpio = S3C64XX_GPO(15), | |
226 | .default_trigger = "default-on", | |
227 | }, | |
228 | }; | |
229 | ||
230 | static struct gpio_led_platform_data hmt_led_data = { | |
231 | .num_leds = ARRAY_SIZE(hmt_leds), | |
232 | .leds = hmt_leds, | |
233 | }; | |
234 | ||
235 | static struct platform_device hmt_leds_device = { | |
236 | .name = "leds-gpio", | |
237 | .id = -1, | |
238 | .dev.platform_data = &hmt_led_data, | |
239 | }; | |
240 | ||
241 | static struct map_desc hmt_iodesc[] = {}; | |
242 | ||
243 | static struct platform_device *hmt_devices[] __initdata = { | |
244 | &s3c_device_i2c0, | |
245 | &s3c_device_nand, | |
246 | &s3c_device_fb, | |
b813248c | 247 | &s3c_device_ohci, |
7fa33bdb | 248 | &samsung_device_pwm, |
2896bda4 PK |
249 | &hmt_backlight_device, |
250 | &hmt_leds_device, | |
251 | }; | |
252 | ||
253 | static void __init hmt_map_io(void) | |
254 | { | |
255 | s3c64xx_init_io(hmt_iodesc, ARRAY_SIZE(hmt_iodesc)); | |
b69f460d | 256 | s3c64xx_set_xtal_freq(12000000); |
2896bda4 | 257 | s3c24xx_init_uarts(hmt_uartcfgs, ARRAY_SIZE(hmt_uartcfgs)); |
04a49b71 | 258 | samsung_set_timer_source(SAMSUNG_PWM3, SAMSUNG_PWM4); |
2896bda4 PK |
259 | } |
260 | ||
261 | static void __init hmt_machine_init(void) | |
262 | { | |
263 | s3c_i2c0_set_platdata(NULL); | |
264 | s3c_fb_set_platdata(&hmt_lcd_pdata); | |
2a3a1804 | 265 | s3c_nand_set_platdata(&hmt_nand_info); |
2896bda4 PK |
266 | |
267 | gpio_request(S3C64XX_GPC(7), "usb power"); | |
268 | gpio_direction_output(S3C64XX_GPC(7), 0); | |
269 | gpio_request(S3C64XX_GPM(0), "usb power"); | |
270 | gpio_direction_output(S3C64XX_GPM(0), 1); | |
271 | gpio_request(S3C64XX_GPK(7), "usb power"); | |
272 | gpio_direction_output(S3C64XX_GPK(7), 1); | |
273 | gpio_request(S3C64XX_GPF(13), "usb power"); | |
274 | gpio_direction_output(S3C64XX_GPF(13), 1); | |
275 | ||
dd39be62 | 276 | pwm_add_table(hmt_pwm_lookup, ARRAY_SIZE(hmt_pwm_lookup)); |
2896bda4 PK |
277 | platform_add_devices(hmt_devices, ARRAY_SIZE(hmt_devices)); |
278 | } | |
279 | ||
280 | MACHINE_START(HMT, "Airgoo-HMT") | |
281 | /* Maintainer: Peter Korsgaard <jacmet@sunsite.dk> */ | |
170a5908 | 282 | .atag_offset = 0x100, |
ba279044 | 283 | .nr_irqs = S3C64XX_NR_IRQS, |
2896bda4 PK |
284 | .init_irq = s3c6410_init_irq, |
285 | .map_io = hmt_map_io, | |
286 | .init_machine = hmt_machine_init, | |
04a49b71 | 287 | .init_time = samsung_timer_init, |
ff84ded2 | 288 | .restart = s3c64xx_restart, |
2896bda4 | 289 | MACHINE_END |