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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> | |
14 | #include <linux/platform_device.h> | |
15 | #include <linux/io.h> | |
16 | #include <linux/i2c.h> | |
17 | #include <linux/fb.h> | |
18 | #include <linux/gpio.h> | |
19 | #include <linux/delay.h> | |
20 | #include <linux/leds.h> | |
21 | #include <linux/pwm_backlight.h> | |
22 | #include <linux/mtd/mtd.h> | |
23 | #include <linux/mtd/partitions.h> | |
24 | ||
25 | #include <asm/mach/arch.h> | |
26 | #include <asm/mach/map.h> | |
27 | #include <asm/mach/irq.h> | |
28 | ||
29 | #include <mach/hardware.h> | |
2896bda4 PK |
30 | #include <mach/map.h> |
31 | ||
774b51f8 | 32 | #include <asm/hardware/vic.h> |
2896bda4 PK |
33 | #include <asm/irq.h> |
34 | #include <asm/mach-types.h> | |
35 | ||
36 | #include <plat/regs-serial.h> | |
37 | #include <plat/iic.h> | |
38 | #include <plat/fb.h> | |
39 | #include <plat/nand.h> | |
40 | ||
2896bda4 PK |
41 | #include <plat/clock.h> |
42 | #include <plat/devs.h> | |
43 | #include <plat/cpu.h> | |
49965e65 | 44 | #include <plat/regs-fb-v4.h> |
2896bda4 | 45 | |
b024043b KK |
46 | #include "common.h" |
47 | ||
2896bda4 PK |
48 | #define UCON S3C2410_UCON_DEFAULT |
49 | #define ULCON (S3C2410_LCON_CS8 | S3C2410_LCON_PNONE) | |
50 | #define UFCON (S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE) | |
51 | ||
52 | static struct s3c2410_uartcfg hmt_uartcfgs[] __initdata = { | |
53 | [0] = { | |
54 | .hwport = 0, | |
55 | .flags = 0, | |
56 | .ucon = UCON, | |
57 | .ulcon = ULCON, | |
58 | .ufcon = UFCON, | |
59 | }, | |
60 | [1] = { | |
61 | .hwport = 1, | |
62 | .flags = 0, | |
63 | .ucon = UCON, | |
64 | .ulcon = ULCON, | |
65 | .ufcon = UFCON, | |
66 | }, | |
67 | [2] = { | |
68 | .hwport = 2, | |
69 | .flags = 0, | |
70 | .ucon = UCON, | |
71 | .ulcon = ULCON, | |
72 | .ufcon = UFCON, | |
73 | }, | |
74 | }; | |
75 | ||
76 | static int hmt_bl_init(struct device *dev) | |
77 | { | |
78 | int ret; | |
79 | ||
80 | ret = gpio_request(S3C64XX_GPB(4), "lcd backlight enable"); | |
81 | if (!ret) | |
82 | ret = gpio_direction_output(S3C64XX_GPB(4), 0); | |
83 | ||
84 | return ret; | |
85 | } | |
86 | ||
1619ce11 | 87 | static int hmt_bl_notify(struct device *dev, int brightness) |
2896bda4 PK |
88 | { |
89 | /* | |
90 | * translate from CIELUV/CIELAB L*->brightness, E.G. from | |
91 | * perceived luminance to light output. Assumes range 0..25600 | |
92 | */ | |
93 | if (brightness < 0x800) { | |
94 | /* Y = Yn * L / 903.3 */ | |
95 | brightness = (100*256 * brightness + 231245/2) / 231245; | |
96 | } else { | |
97 | /* Y = Yn * ((L + 16) / 116 )^3 */ | |
98 | int t = (brightness*4 + 16*1024 + 58)/116; | |
99 | brightness = 25 * ((t * t * t + 0x100000/2) / 0x100000); | |
100 | } | |
101 | ||
102 | gpio_set_value(S3C64XX_GPB(4), brightness); | |
103 | ||
104 | return brightness; | |
105 | } | |
106 | ||
107 | static void hmt_bl_exit(struct device *dev) | |
108 | { | |
109 | gpio_free(S3C64XX_GPB(4)); | |
110 | } | |
111 | ||
112 | static struct platform_pwm_backlight_data hmt_backlight_data = { | |
113 | .pwm_id = 1, | |
114 | .max_brightness = 100 * 256, | |
115 | .dft_brightness = 40 * 256, | |
116 | .pwm_period_ns = 1000000000 / (100 * 256 * 20), | |
117 | .init = hmt_bl_init, | |
118 | .notify = hmt_bl_notify, | |
119 | .exit = hmt_bl_exit, | |
120 | ||
121 | }; | |
122 | ||
123 | static struct platform_device hmt_backlight_device = { | |
124 | .name = "pwm-backlight", | |
125 | .dev = { | |
126 | .parent = &s3c_device_timer[1].dev, | |
127 | .platform_data = &hmt_backlight_data, | |
128 | }, | |
129 | }; | |
130 | ||
131 | static struct s3c_fb_pd_win hmt_fb_win0 = { | |
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132 | .max_bpp = 32, |
133 | .default_bpp = 16, | |
79d3c41a TA |
134 | .xres = 800, |
135 | .yres = 480, | |
136 | }; | |
137 | ||
138 | static struct fb_videomode hmt_lcd_timing = { | |
139 | .left_margin = 8, | |
140 | .right_margin = 13, | |
141 | .upper_margin = 7, | |
142 | .lower_margin = 5, | |
143 | .hsync_len = 3, | |
144 | .vsync_len = 1, | |
145 | .xres = 800, | |
146 | .yres = 480, | |
2896bda4 PK |
147 | }; |
148 | ||
149 | /* 405566 clocks per frame => 60Hz refresh requires 24333960Hz clock */ | |
150 | static struct s3c_fb_platdata hmt_lcd_pdata __initdata = { | |
151 | .setup_gpio = s3c64xx_fb_gpio_setup_24bpp, | |
79d3c41a | 152 | .vtiming = &hmt_lcd_timing, |
2896bda4 PK |
153 | .win[0] = &hmt_fb_win0, |
154 | .vidcon0 = VIDCON0_VIDOUT_RGB | VIDCON0_PNRMODE_RGB, | |
155 | .vidcon1 = VIDCON1_INV_HSYNC | VIDCON1_INV_VSYNC, | |
156 | }; | |
157 | ||
158 | static struct mtd_partition hmt_nand_part[] = { | |
159 | [0] = { | |
160 | .name = "uboot", | |
161 | .size = SZ_512K, | |
162 | .offset = 0, | |
163 | }, | |
164 | [1] = { | |
165 | .name = "uboot-env1", | |
166 | .size = SZ_256K, | |
167 | .offset = SZ_512K, | |
168 | }, | |
169 | [2] = { | |
170 | .name = "uboot-env2", | |
171 | .size = SZ_256K, | |
172 | .offset = SZ_512K + SZ_256K, | |
173 | }, | |
174 | [3] = { | |
175 | .name = "kernel", | |
176 | .size = SZ_2M, | |
177 | .offset = SZ_1M, | |
178 | }, | |
179 | [4] = { | |
180 | .name = "rootfs", | |
181 | .size = MTDPART_SIZ_FULL, | |
182 | .offset = SZ_1M + SZ_2M, | |
183 | }, | |
184 | }; | |
185 | ||
186 | static struct s3c2410_nand_set hmt_nand_sets[] = { | |
187 | [0] = { | |
188 | .name = "nand", | |
189 | .nr_chips = 1, | |
190 | .nr_partitions = ARRAY_SIZE(hmt_nand_part), | |
191 | .partitions = hmt_nand_part, | |
192 | }, | |
193 | }; | |
194 | ||
195 | static struct s3c2410_platform_nand hmt_nand_info = { | |
196 | .tacls = 25, | |
197 | .twrph0 = 55, | |
198 | .twrph1 = 40, | |
199 | .nr_sets = ARRAY_SIZE(hmt_nand_sets), | |
200 | .sets = hmt_nand_sets, | |
201 | }; | |
202 | ||
203 | static struct gpio_led hmt_leds[] = { | |
204 | { /* left function keys */ | |
205 | .name = "left:blue", | |
206 | .gpio = S3C64XX_GPO(12), | |
207 | .default_trigger = "default-on", | |
208 | }, | |
209 | { /* right function keys - red */ | |
210 | .name = "right:red", | |
211 | .gpio = S3C64XX_GPO(13), | |
212 | }, | |
213 | { /* right function keys - green */ | |
214 | .name = "right:green", | |
215 | .gpio = S3C64XX_GPO(14), | |
216 | }, | |
217 | { /* right function keys - blue */ | |
218 | .name = "right:blue", | |
219 | .gpio = S3C64XX_GPO(15), | |
220 | .default_trigger = "default-on", | |
221 | }, | |
222 | }; | |
223 | ||
224 | static struct gpio_led_platform_data hmt_led_data = { | |
225 | .num_leds = ARRAY_SIZE(hmt_leds), | |
226 | .leds = hmt_leds, | |
227 | }; | |
228 | ||
229 | static struct platform_device hmt_leds_device = { | |
230 | .name = "leds-gpio", | |
231 | .id = -1, | |
232 | .dev.platform_data = &hmt_led_data, | |
233 | }; | |
234 | ||
235 | static struct map_desc hmt_iodesc[] = {}; | |
236 | ||
237 | static struct platform_device *hmt_devices[] __initdata = { | |
238 | &s3c_device_i2c0, | |
239 | &s3c_device_nand, | |
240 | &s3c_device_fb, | |
b813248c | 241 | &s3c_device_ohci, |
2896bda4 PK |
242 | &s3c_device_timer[1], |
243 | &hmt_backlight_device, | |
244 | &hmt_leds_device, | |
245 | }; | |
246 | ||
247 | static void __init hmt_map_io(void) | |
248 | { | |
249 | s3c64xx_init_io(hmt_iodesc, ARRAY_SIZE(hmt_iodesc)); | |
250 | s3c24xx_init_clocks(12000000); | |
251 | s3c24xx_init_uarts(hmt_uartcfgs, ARRAY_SIZE(hmt_uartcfgs)); | |
252 | } | |
253 | ||
254 | static void __init hmt_machine_init(void) | |
255 | { | |
256 | s3c_i2c0_set_platdata(NULL); | |
257 | s3c_fb_set_platdata(&hmt_lcd_pdata); | |
2a3a1804 | 258 | s3c_nand_set_platdata(&hmt_nand_info); |
2896bda4 PK |
259 | |
260 | gpio_request(S3C64XX_GPC(7), "usb power"); | |
261 | gpio_direction_output(S3C64XX_GPC(7), 0); | |
262 | gpio_request(S3C64XX_GPM(0), "usb power"); | |
263 | gpio_direction_output(S3C64XX_GPM(0), 1); | |
264 | gpio_request(S3C64XX_GPK(7), "usb power"); | |
265 | gpio_direction_output(S3C64XX_GPK(7), 1); | |
266 | gpio_request(S3C64XX_GPF(13), "usb power"); | |
267 | gpio_direction_output(S3C64XX_GPF(13), 1); | |
268 | ||
269 | platform_add_devices(hmt_devices, ARRAY_SIZE(hmt_devices)); | |
270 | } | |
271 | ||
272 | MACHINE_START(HMT, "Airgoo-HMT") | |
273 | /* Maintainer: Peter Korsgaard <jacmet@sunsite.dk> */ | |
170a5908 | 274 | .atag_offset = 0x100, |
2896bda4 | 275 | .init_irq = s3c6410_init_irq, |
774b51f8 | 276 | .handle_irq = vic_handle_irq, |
2896bda4 PK |
277 | .map_io = hmt_map_io, |
278 | .init_machine = hmt_machine_init, | |
cc8f252b | 279 | .init_late = s3c64xx_init_late, |
2896bda4 | 280 | .timer = &s3c24xx_timer, |
ff84ded2 | 281 | .restart = s3c64xx_restart, |
2896bda4 | 282 | MACHINE_END |