projects / deliverable / linux.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
Merge branch 'stable-3.18' of git://git.infradead.org/users/pcmoore/audit
[deliverable/linux.git] / arch / arm / mach-s3c64xx / mach-hmt.c
CommitLineData
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>
22#include <linux/pwm_backlight.h>
23#include <linux/mtd/mtd.h>
24#include <linux/mtd/partitions.h>
25
26#include <asm/mach/arch.h>
27#include <asm/mach/map.h>
28#include <asm/mach/irq.h>
29
5a213a55 30#include <video/samsung_fimd.h>
2896bda4 31#include <mach/hardware.h>
2896bda4
PK		 32#include <mach/map.h>
33
34#include <asm/irq.h>
35#include <asm/mach-types.h>
36
436d42c6 37#include <linux/platform_data/i2c-s3c2410.h>
b0161caa 38#include <mach/gpio-samsung.h>
2896bda4 39#include <plat/fb.h>
436d42c6 40#include <linux/platform_data/mtd-nand-s3c2410.h>
2896bda4 41
2896bda4
PK		 42#include <plat/devs.h>
43#include <plat/cpu.h>
04a49b71 44#include <plat/samsung-time.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
52static 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
76static 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 87static 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
107static void hmt_bl_exit(struct device *dev)
108{
109 gpio_free(S3C64XX_GPB(4));
110}
111
112static 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),
a63652f1 117 .enable_gpio = -1,
2896bda4
PK		 118 .init = hmt_bl_init,
119 .notify = hmt_bl_notify,
120 .exit = hmt_bl_exit,
121
122};
123
124static struct platform_device hmt_backlight_device = {
125 .name = "pwm-backlight",
126 .dev = {
7fa33bdb 127 .parent = &samsung_device_pwm.dev,
2896bda4
PK		 128 .platform_data = &hmt_backlight_data,
129 },
130};
131
132static struct s3c_fb_pd_win hmt_fb_win0 = {
2896bda4
PK		 133 .max_bpp = 32,
134 .default_bpp = 16,
79d3c41a
TA		 135 .xres = 800,
136 .yres = 480,
137};
138
139static struct fb_videomode hmt_lcd_timing = {
140 .left_margin = 8,
141 .right_margin = 13,
142 .upper_margin = 7,
143 .lower_margin = 5,
144 .hsync_len = 3,
145 .vsync_len = 1,
146 .xres = 800,
147 .yres = 480,
2896bda4
PK		 148};
149
150/* 405566 clocks per frame => 60Hz refresh requires 24333960Hz clock */
151static struct s3c_fb_platdata hmt_lcd_pdata __initdata = {
152 .setup_gpio = s3c64xx_fb_gpio_setup_24bpp,
79d3c41a 153 .vtiming = &hmt_lcd_timing,
2896bda4
PK		 154 .win[0] = &hmt_fb_win0,
155 .vidcon0 = VIDCON0_VIDOUT_RGB | VIDCON0_PNRMODE_RGB,
156 .vidcon1 = VIDCON1_INV_HSYNC | VIDCON1_INV_VSYNC,
157};
158
159static struct mtd_partition hmt_nand_part[] = {
160 [0] = {
161 .name = "uboot",
162 .size = SZ_512K,
163 .offset = 0,
164 },
165 [1] = {
166 .name = "uboot-env1",
167 .size = SZ_256K,
168 .offset = SZ_512K,
169 },
170 [2] = {
171 .name = "uboot-env2",
172 .size = SZ_256K,
173 .offset = SZ_512K + SZ_256K,
174 },
175 [3] = {
176 .name = "kernel",
177 .size = SZ_2M,
178 .offset = SZ_1M,
179 },
180 [4] = {
181 .name = "rootfs",
182 .size = MTDPART_SIZ_FULL,
183 .offset = SZ_1M + SZ_2M,
184 },
185};
186
187static struct s3c2410_nand_set hmt_nand_sets[] = {
188 [0] = {
189 .name = "nand",
190 .nr_chips = 1,
191 .nr_partitions = ARRAY_SIZE(hmt_nand_part),
192 .partitions = hmt_nand_part,
193 },
194};
195
196static struct s3c2410_platform_nand hmt_nand_info = {
197 .tacls = 25,
198 .twrph0 = 55,
199 .twrph1 = 40,
200 .nr_sets = ARRAY_SIZE(hmt_nand_sets),
201 .sets = hmt_nand_sets,
202};
203
204static struct gpio_led hmt_leds[] = {
205 { /* left function keys */
206 .name = "left:blue",
207 .gpio = S3C64XX_GPO(12),
208 .default_trigger = "default-on",
209 },
210 { /* right function keys - red */
211 .name = "right:red",
212 .gpio = S3C64XX_GPO(13),
213 },
214 { /* right function keys - green */
215 .name = "right:green",
216 .gpio = S3C64XX_GPO(14),
217 },
218 { /* right function keys - blue */
219 .name = "right:blue",
220 .gpio = S3C64XX_GPO(15),
221 .default_trigger = "default-on",
222 },
223};
224
225static struct gpio_led_platform_data hmt_led_data = {
226 .num_leds = ARRAY_SIZE(hmt_leds),
227 .leds = hmt_leds,
228};
229
230static struct platform_device hmt_leds_device = {
231 .name = "leds-gpio",
232 .id = -1,
233 .dev.platform_data = &hmt_led_data,
234};
235
236static struct map_desc hmt_iodesc[] = {};
237
238static struct platform_device *hmt_devices[] __initdata = {
239 &s3c_device_i2c0,
240 &s3c_device_nand,
241 &s3c_device_fb,
b813248c 242 &s3c_device_ohci,
7fa33bdb 243 &samsung_device_pwm,
2896bda4
PK		 244 &hmt_backlight_device,
245 &hmt_leds_device,
246};
247
248static void __init hmt_map_io(void)
249{
250 s3c64xx_init_io(hmt_iodesc, ARRAY_SIZE(hmt_iodesc));
b69f460d 251 s3c64xx_set_xtal_freq(12000000);
2896bda4 252 s3c24xx_init_uarts(hmt_uartcfgs, ARRAY_SIZE(hmt_uartcfgs));
04a49b71 253 samsung_set_timer_source(SAMSUNG_PWM3, SAMSUNG_PWM4);
2896bda4
PK		 254}
255
256static void __init hmt_machine_init(void)
257{
258 s3c_i2c0_set_platdata(NULL);
259 s3c_fb_set_platdata(&hmt_lcd_pdata);
2a3a1804 260 s3c_nand_set_platdata(&hmt_nand_info);
2896bda4
PK		 261
262 gpio_request(S3C64XX_GPC(7), "usb power");
263 gpio_direction_output(S3C64XX_GPC(7), 0);
264 gpio_request(S3C64XX_GPM(0), "usb power");
265 gpio_direction_output(S3C64XX_GPM(0), 1);
266 gpio_request(S3C64XX_GPK(7), "usb power");
267 gpio_direction_output(S3C64XX_GPK(7), 1);
268 gpio_request(S3C64XX_GPF(13), "usb power");
269 gpio_direction_output(S3C64XX_GPF(13), 1);
270
271 platform_add_devices(hmt_devices, ARRAY_SIZE(hmt_devices));
272}
273
274MACHINE_START(HMT, "Airgoo-HMT")
275 /* Maintainer: Peter Korsgaard <jacmet@sunsite.dk> */
170a5908 276 .atag_offset = 0x100,
2896bda4
PK		 277 .init_irq = s3c6410_init_irq,
278 .map_io = hmt_map_io,
279 .init_machine = hmt_machine_init,
04a49b71 280 .init_time = samsung_timer_init,
ff84ded2 281 .restart = s3c64xx_restart,
2896bda4 282MACHINE_END
Linux kernel - Deliverables
This page took 0.257485 seconds and 5 git commands to generate.