GNU Linux-libre 4.4.287-gnu1
[releases.git] / arch / arm / mach-s3c64xx / mach-mini6410.c
1 /* linux/arch/arm/mach-s3c64xx/mach-mini6410.c
2  *
3  * Copyright 2010 Darius Augulis <augulis.darius@gmail.com>
4  * Copyright 2008 Openmoko, Inc.
5  * Copyright 2008 Simtec Electronics
6  *      Ben Dooks <ben@simtec.co.uk>
7  *      http://armlinux.simtec.co.uk/
8  *
9  * This program is free software; you can redistribute it and/or modify
10  * it under the terms of the GNU General Public License version 2 as
11  * published by the Free Software Foundation.
12  *
13 */
14
15 #include <linux/init.h>
16 #include <linux/interrupt.h>
17 #include <linux/fb.h>
18 #include <linux/gpio.h>
19 #include <linux/kernel.h>
20 #include <linux/list.h>
21 #include <linux/dm9000.h>
22 #include <linux/mtd/mtd.h>
23 #include <linux/mtd/partitions.h>
24 #include <linux/serial_core.h>
25 #include <linux/serial_s3c.h>
26 #include <linux/types.h>
27
28 #include <asm/mach-types.h>
29 #include <asm/mach/arch.h>
30 #include <asm/mach/map.h>
31
32 #include <mach/map.h>
33 #include <mach/regs-gpio.h>
34 #include <mach/gpio-samsung.h>
35
36 #include <plat/adc.h>
37 #include <plat/cpu.h>
38 #include <plat/devs.h>
39 #include <plat/fb.h>
40 #include <linux/platform_data/mtd-nand-s3c2410.h>
41 #include <linux/platform_data/mmc-sdhci-s3c.h>
42 #include <plat/sdhci.h>
43 #include <linux/platform_data/touchscreen-s3c2410.h>
44
45 #include <video/platform_lcd.h>
46 #include <video/samsung_fimd.h>
47 #include <plat/samsung-time.h>
48
49 #include "common.h"
50 #include "regs-modem.h"
51 #include "regs-srom.h"
52
53 #define UCON S3C2410_UCON_DEFAULT
54 #define ULCON (S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB)
55 #define UFCON (S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE)
56
57 static struct s3c2410_uartcfg mini6410_uartcfgs[] __initdata = {
58         [0] = {
59                 .hwport = 0,
60                 .flags  = 0,
61                 .ucon   = UCON,
62                 .ulcon  = ULCON,
63                 .ufcon  = UFCON,
64         },
65         [1] = {
66                 .hwport = 1,
67                 .flags  = 0,
68                 .ucon   = UCON,
69                 .ulcon  = ULCON,
70                 .ufcon  = UFCON,
71         },
72         [2] = {
73                 .hwport = 2,
74                 .flags  = 0,
75                 .ucon   = UCON,
76                 .ulcon  = ULCON,
77                 .ufcon  = UFCON,
78         },
79         [3] = {
80                 .hwport = 3,
81                 .flags  = 0,
82                 .ucon   = UCON,
83                 .ulcon  = ULCON,
84                 .ufcon  = UFCON,
85         },
86 };
87
88 /* DM9000AEP 10/100 ethernet controller */
89
90 static struct resource mini6410_dm9k_resource[] = {
91         [0] = DEFINE_RES_MEM(S3C64XX_PA_XM0CSN1, 2),
92         [1] = DEFINE_RES_MEM(S3C64XX_PA_XM0CSN1 + 4, 2),
93         [2] = DEFINE_RES_NAMED(S3C_EINT(7), 1, NULL, IORESOURCE_IRQ \
94                                         | IORESOURCE_IRQ_HIGHLEVEL),
95 };
96
97 static struct dm9000_plat_data mini6410_dm9k_pdata = {
98         .flags          = (DM9000_PLATF_16BITONLY | DM9000_PLATF_NO_EEPROM),
99 };
100
101 static struct platform_device mini6410_device_eth = {
102         .name           = "dm9000",
103         .id             = -1,
104         .num_resources  = ARRAY_SIZE(mini6410_dm9k_resource),
105         .resource       = mini6410_dm9k_resource,
106         .dev            = {
107                 .platform_data  = &mini6410_dm9k_pdata,
108         },
109 };
110
111 static struct mtd_partition mini6410_nand_part[] = {
112         [0] = {
113                 .name   = "uboot",
114                 .size   = SZ_1M,
115                 .offset = 0,
116         },
117         [1] = {
118                 .name   = "kernel",
119                 .size   = SZ_2M,
120                 .offset = SZ_1M,
121         },
122         [2] = {
123                 .name   = "rootfs",
124                 .size   = MTDPART_SIZ_FULL,
125                 .offset = SZ_1M + SZ_2M,
126         },
127 };
128
129 static struct s3c2410_nand_set mini6410_nand_sets[] = {
130         [0] = {
131                 .name           = "nand",
132                 .nr_chips       = 1,
133                 .nr_partitions  = ARRAY_SIZE(mini6410_nand_part),
134                 .partitions     = mini6410_nand_part,
135         },
136 };
137
138 static struct s3c2410_platform_nand mini6410_nand_info = {
139         .tacls          = 25,
140         .twrph0         = 55,
141         .twrph1         = 40,
142         .nr_sets        = ARRAY_SIZE(mini6410_nand_sets),
143         .sets           = mini6410_nand_sets,
144 };
145
146 static struct s3c_fb_pd_win mini6410_lcd_type0_fb_win = {
147         .max_bpp        = 32,
148         .default_bpp    = 16,
149         .xres           = 480,
150         .yres           = 272,
151 };
152
153 static struct fb_videomode mini6410_lcd_type0_timing = {
154         /* 4.3" 480x272 */
155         .left_margin    = 3,
156         .right_margin   = 2,
157         .upper_margin   = 1,
158         .lower_margin   = 1,
159         .hsync_len      = 40,
160         .vsync_len      = 1,
161         .xres           = 480,
162         .yres           = 272,
163 };
164
165 static struct s3c_fb_pd_win mini6410_lcd_type1_fb_win = {
166         .max_bpp        = 32,
167         .default_bpp    = 16,
168         .xres           = 800,
169         .yres           = 480,
170 };
171
172 static struct fb_videomode mini6410_lcd_type1_timing = {
173         /* 7.0" 800x480 */
174         .left_margin    = 8,
175         .right_margin   = 13,
176         .upper_margin   = 7,
177         .lower_margin   = 5,
178         .hsync_len      = 3,
179         .vsync_len      = 1,
180         .xres           = 800,
181         .yres           = 480,
182 };
183
184 static struct s3c_fb_platdata mini6410_lcd_pdata[] __initdata = {
185         {
186                 .setup_gpio     = s3c64xx_fb_gpio_setup_24bpp,
187                 .vtiming        = &mini6410_lcd_type0_timing,
188                 .win[0]         = &mini6410_lcd_type0_fb_win,
189                 .vidcon0        = VIDCON0_VIDOUT_RGB | VIDCON0_PNRMODE_RGB,
190                 .vidcon1        = VIDCON1_INV_HSYNC | VIDCON1_INV_VSYNC,
191         }, {
192                 .setup_gpio     = s3c64xx_fb_gpio_setup_24bpp,
193                 .vtiming        = &mini6410_lcd_type1_timing,
194                 .win[0]         = &mini6410_lcd_type1_fb_win,
195                 .vidcon0        = VIDCON0_VIDOUT_RGB | VIDCON0_PNRMODE_RGB,
196                 .vidcon1        = VIDCON1_INV_HSYNC | VIDCON1_INV_VSYNC,
197         },
198         { },
199 };
200
201 static void mini6410_lcd_power_set(struct plat_lcd_data *pd,
202                                    unsigned int power)
203 {
204         if (power)
205                 gpio_direction_output(S3C64XX_GPE(0), 1);
206         else
207                 gpio_direction_output(S3C64XX_GPE(0), 0);
208 }
209
210 static struct plat_lcd_data mini6410_lcd_power_data = {
211         .set_power      = mini6410_lcd_power_set,
212 };
213
214 static struct platform_device mini6410_lcd_powerdev = {
215         .name                   = "platform-lcd",
216         .dev.parent             = &s3c_device_fb.dev,
217         .dev.platform_data      = &mini6410_lcd_power_data,
218 };
219
220 static struct s3c_sdhci_platdata mini6410_hsmmc1_pdata = {
221         .max_width              = 4,
222         .cd_type                = S3C_SDHCI_CD_GPIO,
223         .ext_cd_gpio            = S3C64XX_GPN(10),
224         .ext_cd_gpio_invert     = true,
225 };
226
227 static struct platform_device *mini6410_devices[] __initdata = {
228         &mini6410_device_eth,
229         &s3c_device_hsmmc0,
230         &s3c_device_hsmmc1,
231         &s3c_device_ohci,
232         &s3c_device_nand,
233         &s3c_device_fb,
234         &mini6410_lcd_powerdev,
235         &s3c_device_adc,
236         &s3c_device_ts,
237 };
238
239 static void __init mini6410_map_io(void)
240 {
241         u32 tmp;
242
243         s3c64xx_init_io(NULL, 0);
244         s3c64xx_set_xtal_freq(12000000);
245         s3c24xx_init_uarts(mini6410_uartcfgs, ARRAY_SIZE(mini6410_uartcfgs));
246         samsung_set_timer_source(SAMSUNG_PWM3, SAMSUNG_PWM4);
247
248         /* set the LCD type */
249         tmp = __raw_readl(S3C64XX_SPCON);
250         tmp &= ~S3C64XX_SPCON_LCD_SEL_MASK;
251         tmp |= S3C64XX_SPCON_LCD_SEL_RGB;
252         __raw_writel(tmp, S3C64XX_SPCON);
253
254         /* remove the LCD bypass */
255         tmp = __raw_readl(S3C64XX_MODEM_MIFPCON);
256         tmp &= ~MIFPCON_LCD_BYPASS;
257         __raw_writel(tmp, S3C64XX_MODEM_MIFPCON);
258 }
259
260 /*
261  * mini6410_features string
262  *
263  * 0-9 LCD configuration
264  *
265  */
266 static char mini6410_features_str[12] __initdata = "0";
267
268 static int __init mini6410_features_setup(char *str)
269 {
270         if (str)
271                 strlcpy(mini6410_features_str, str,
272                         sizeof(mini6410_features_str));
273         return 1;
274 }
275
276 __setup("mini6410=", mini6410_features_setup);
277
278 #define FEATURE_SCREEN (1 << 0)
279
280 struct mini6410_features_t {
281         int done;
282         int lcd_index;
283 };
284
285 static void mini6410_parse_features(
286                 struct mini6410_features_t *features,
287                 const char *features_str)
288 {
289         const char *fp = features_str;
290
291         features->done = 0;
292         features->lcd_index = 0;
293
294         while (*fp) {
295                 char f = *fp++;
296
297                 switch (f) {
298                 case '0'...'9': /* tft screen */
299                         if (features->done & FEATURE_SCREEN) {
300                                 printk(KERN_INFO "MINI6410: '%c' ignored, "
301                                         "screen type already set\n", f);
302                         } else {
303                                 int li = f - '0';
304                                 if (li >= ARRAY_SIZE(mini6410_lcd_pdata))
305                                         printk(KERN_INFO "MINI6410: '%c' out "
306                                                 "of range LCD mode\n", f);
307                                 else {
308                                         features->lcd_index = li;
309                                 }
310                         }
311                         features->done |= FEATURE_SCREEN;
312                         break;
313                 }
314         }
315 }
316
317 static void __init mini6410_machine_init(void)
318 {
319         u32 cs1;
320         struct mini6410_features_t features = { 0 };
321
322         printk(KERN_INFO "MINI6410: Option string mini6410=%s\n",
323                         mini6410_features_str);
324
325         /* Parse the feature string */
326         mini6410_parse_features(&features, mini6410_features_str);
327
328         printk(KERN_INFO "MINI6410: selected LCD display is %dx%d\n",
329                 mini6410_lcd_pdata[features.lcd_index].win[0]->xres,
330                 mini6410_lcd_pdata[features.lcd_index].win[0]->yres);
331
332         s3c_nand_set_platdata(&mini6410_nand_info);
333         s3c_fb_set_platdata(&mini6410_lcd_pdata[features.lcd_index]);
334         s3c_sdhci1_set_platdata(&mini6410_hsmmc1_pdata);
335         s3c24xx_ts_set_platdata(NULL);
336
337         /* configure nCS1 width to 16 bits */
338
339         cs1 = __raw_readl(S3C64XX_SROM_BW) &
340                 ~(S3C64XX_SROM_BW__CS_MASK << S3C64XX_SROM_BW__NCS1__SHIFT);
341         cs1 |= ((1 << S3C64XX_SROM_BW__DATAWIDTH__SHIFT) |
342                 (1 << S3C64XX_SROM_BW__WAITENABLE__SHIFT) |
343                 (1 << S3C64XX_SROM_BW__BYTEENABLE__SHIFT)) <<
344                         S3C64XX_SROM_BW__NCS1__SHIFT;
345         __raw_writel(cs1, S3C64XX_SROM_BW);
346
347         /* set timing for nCS1 suitable for ethernet chip */
348
349         __raw_writel((0 << S3C64XX_SROM_BCX__PMC__SHIFT) |
350                 (6 << S3C64XX_SROM_BCX__TACP__SHIFT) |
351                 (4 << S3C64XX_SROM_BCX__TCAH__SHIFT) |
352                 (1 << S3C64XX_SROM_BCX__TCOH__SHIFT) |
353                 (13 << S3C64XX_SROM_BCX__TACC__SHIFT) |
354                 (4 << S3C64XX_SROM_BCX__TCOS__SHIFT) |
355                 (0 << S3C64XX_SROM_BCX__TACS__SHIFT), S3C64XX_SROM_BC1);
356
357         gpio_request(S3C64XX_GPF(15), "LCD power");
358         gpio_request(S3C64XX_GPE(0), "LCD power");
359
360         platform_add_devices(mini6410_devices, ARRAY_SIZE(mini6410_devices));
361 }
362
363 MACHINE_START(MINI6410, "MINI6410")
364         /* Maintainer: Darius Augulis <augulis.darius@gmail.com> */
365         .atag_offset    = 0x100,
366         .init_irq       = s3c6410_init_irq,
367         .map_io         = mini6410_map_io,
368         .init_machine   = mini6410_machine_init,
369         .init_time      = samsung_timer_init,
370         .restart        = s3c64xx_restart,
371 MACHINE_END