1
2
3
4
5
6
7
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>
30#include <mach/regs-fb.h>
31#include <mach/map.h>
32
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
41#include <plat/s3c6410.h>
42#include <plat/clock.h>
43#include <plat/devs.h>
44#include <plat/cpu.h>
45
46#define UCON S3C2410_UCON_DEFAULT
47#define ULCON (S3C2410_LCON_CS8 | S3C2410_LCON_PNONE)
48#define UFCON (S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE)
49
50static struct s3c2410_uartcfg hmt_uartcfgs[] __initdata = {
51 [0] = {
52 .hwport = 0,
53 .flags = 0,
54 .ucon = UCON,
55 .ulcon = ULCON,
56 .ufcon = UFCON,
57 },
58 [1] = {
59 .hwport = 1,
60 .flags = 0,
61 .ucon = UCON,
62 .ulcon = ULCON,
63 .ufcon = UFCON,
64 },
65 [2] = {
66 .hwport = 2,
67 .flags = 0,
68 .ucon = UCON,
69 .ulcon = ULCON,
70 .ufcon = UFCON,
71 },
72};
73
74static int hmt_bl_init(struct device *dev)
75{
76 int ret;
77
78 ret = gpio_request(S3C64XX_GPB(4), "lcd backlight enable");
79 if (!ret)
80 ret = gpio_direction_output(S3C64XX_GPB(4), 0);
81
82 return ret;
83}
84
85static int hmt_bl_notify(int brightness)
86{
87
88
89
90
91 if (brightness < 0x800) {
92
93 brightness = (100*256 * brightness + 231245/2) / 231245;
94 } else {
95
96 int t = (brightness*4 + 16*1024 + 58)/116;
97 brightness = 25 * ((t * t * t + 0x100000/2) / 0x100000);
98 }
99
100 gpio_set_value(S3C64XX_GPB(4), brightness);
101
102 return brightness;
103}
104
105static void hmt_bl_exit(struct device *dev)
106{
107 gpio_free(S3C64XX_GPB(4));
108}
109
110static struct platform_pwm_backlight_data hmt_backlight_data = {
111 .pwm_id = 1,
112 .max_brightness = 100 * 256,
113 .dft_brightness = 40 * 256,
114 .pwm_period_ns = 1000000000 / (100 * 256 * 20),
115 .init = hmt_bl_init,
116 .notify = hmt_bl_notify,
117 .exit = hmt_bl_exit,
118
119};
120
121static struct platform_device hmt_backlight_device = {
122 .name = "pwm-backlight",
123 .dev = {
124 .parent = &s3c_device_timer[1].dev,
125 .platform_data = &hmt_backlight_data,
126 },
127};
128
129static struct s3c_fb_pd_win hmt_fb_win0 = {
130 .win_mode = {
131 .pixclock = 41094,
132 .left_margin = 8,
133 .right_margin = 13,
134 .upper_margin = 7,
135 .lower_margin = 5,
136 .hsync_len = 3,
137 .vsync_len = 1,
138 .xres = 800,
139 .yres = 480,
140 },
141 .max_bpp = 32,
142 .default_bpp = 16,
143};
144
145
146static struct s3c_fb_platdata hmt_lcd_pdata __initdata = {
147 .setup_gpio = s3c64xx_fb_gpio_setup_24bpp,
148 .win[0] = &hmt_fb_win0,
149 .vidcon0 = VIDCON0_VIDOUT_RGB | VIDCON0_PNRMODE_RGB,
150 .vidcon1 = VIDCON1_INV_HSYNC | VIDCON1_INV_VSYNC,
151};
152
153static struct mtd_partition hmt_nand_part[] = {
154 [0] = {
155 .name = "uboot",
156 .size = SZ_512K,
157 .offset = 0,
158 },
159 [1] = {
160 .name = "uboot-env1",
161 .size = SZ_256K,
162 .offset = SZ_512K,
163 },
164 [2] = {
165 .name = "uboot-env2",
166 .size = SZ_256K,
167 .offset = SZ_512K + SZ_256K,
168 },
169 [3] = {
170 .name = "kernel",
171 .size = SZ_2M,
172 .offset = SZ_1M,
173 },
174 [4] = {
175 .name = "rootfs",
176 .size = MTDPART_SIZ_FULL,
177 .offset = SZ_1M + SZ_2M,
178 },
179};
180
181static struct s3c2410_nand_set hmt_nand_sets[] = {
182 [0] = {
183 .name = "nand",
184 .nr_chips = 1,
185 .nr_partitions = ARRAY_SIZE(hmt_nand_part),
186 .partitions = hmt_nand_part,
187 },
188};
189
190static struct s3c2410_platform_nand hmt_nand_info = {
191 .tacls = 25,
192 .twrph0 = 55,
193 .twrph1 = 40,
194 .nr_sets = ARRAY_SIZE(hmt_nand_sets),
195 .sets = hmt_nand_sets,
196};
197
198static struct gpio_led hmt_leds[] = {
199 {
200 .name = "left:blue",
201 .gpio = S3C64XX_GPO(12),
202 .default_trigger = "default-on",
203 },
204 {
205 .name = "right:red",
206 .gpio = S3C64XX_GPO(13),
207 },
208 {
209 .name = "right:green",
210 .gpio = S3C64XX_GPO(14),
211 },
212 {
213 .name = "right:blue",
214 .gpio = S3C64XX_GPO(15),
215 .default_trigger = "default-on",
216 },
217};
218
219static struct gpio_led_platform_data hmt_led_data = {
220 .num_leds = ARRAY_SIZE(hmt_leds),
221 .leds = hmt_leds,
222};
223
224static struct platform_device hmt_leds_device = {
225 .name = "leds-gpio",
226 .id = -1,
227 .dev.platform_data = &hmt_led_data,
228};
229
230static struct map_desc hmt_iodesc[] = {};
231
232static struct platform_device *hmt_devices[] __initdata = {
233 &s3c_device_i2c0,
234 &s3c_device_nand,
235 &s3c_device_fb,
236 &s3c_device_usb,
237 &s3c_device_timer[1],
238 &hmt_backlight_device,
239 &hmt_leds_device,
240};
241
242static void __init hmt_map_io(void)
243{
244 s3c64xx_init_io(hmt_iodesc, ARRAY_SIZE(hmt_iodesc));
245 s3c24xx_init_clocks(12000000);
246 s3c24xx_init_uarts(hmt_uartcfgs, ARRAY_SIZE(hmt_uartcfgs));
247}
248
249static void __init hmt_machine_init(void)
250{
251 s3c_i2c0_set_platdata(NULL);
252 s3c_fb_set_platdata(&hmt_lcd_pdata);
253 s3c_device_nand.dev.platform_data = &hmt_nand_info;
254
255 gpio_request(S3C64XX_GPC(7), "usb power");
256 gpio_direction_output(S3C64XX_GPC(7), 0);
257 gpio_request(S3C64XX_GPM(0), "usb power");
258 gpio_direction_output(S3C64XX_GPM(0), 1);
259 gpio_request(S3C64XX_GPK(7), "usb power");
260 gpio_direction_output(S3C64XX_GPK(7), 1);
261 gpio_request(S3C64XX_GPF(13), "usb power");
262 gpio_direction_output(S3C64XX_GPF(13), 1);
263
264 platform_add_devices(hmt_devices, ARRAY_SIZE(hmt_devices));
265}
266
267MACHINE_START(HMT, "Airgoo-HMT")
268
269 .phys_io = S3C_PA_UART & 0xfff00000,
270 .io_pg_offst = (((u32)S3C_VA_UART) >> 18) & 0xfffc,
271 .boot_params = S3C64XX_PA_SDRAM + 0x100,
272 .init_irq = s3c6410_init_irq,
273 .map_io = hmt_map_io,
274 .init_machine = hmt_machine_init,
275 .timer = &s3c24xx_timer,
276MACHINE_END
277
