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Linux/arch/arm/mach-s3c64xx/mach-real6410.c

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  1 /* linux/arch/arm/mach-s3c64xx/mach-real6410.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/platform_device.h>
 25 #include <linux/serial_core.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 <plat/regs-serial.h>
 42 #include <linux/platform_data/touchscreen-s3c2410.h>
 43 
 44 #include <video/platform_lcd.h>
 45 #include <video/samsung_fimd.h>
 46 #include <plat/samsung-time.h>
 47 
 48 #include "common.h"
 49 #include "regs-modem.h"
 50 #include "regs-srom.h"
 51 
 52 #define UCON S3C2410_UCON_DEFAULT
 53 #define ULCON (S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB)
 54 #define UFCON (S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE)
 55 
 56 static struct s3c2410_uartcfg real6410_uartcfgs[] __initdata = {
 57         [0] = {
 58                 .hwport = 0,
 59                 .flags  = 0,
 60                 .ucon   = UCON,
 61                 .ulcon  = ULCON,
 62                 .ufcon  = UFCON,
 63         },
 64         [1] = {
 65                 .hwport = 1,
 66                 .flags  = 0,
 67                 .ucon   = UCON,
 68                 .ulcon  = ULCON,
 69                 .ufcon  = UFCON,
 70         },
 71         [2] = {
 72                 .hwport = 2,
 73                 .flags  = 0,
 74                 .ucon   = UCON,
 75                 .ulcon  = ULCON,
 76                 .ufcon  = UFCON,
 77         },
 78         [3] = {
 79                 .hwport = 3,
 80                 .flags  = 0,
 81                 .ucon   = UCON,
 82                 .ulcon  = ULCON,
 83                 .ufcon  = UFCON,
 84         },
 85 };
 86 
 87 /* DM9000AEP 10/100 ethernet controller */
 88 
 89 static struct resource real6410_dm9k_resource[] = {
 90         [0] = DEFINE_RES_MEM(S3C64XX_PA_XM0CSN1, 2),
 91         [1] = DEFINE_RES_MEM(S3C64XX_PA_XM0CSN1 + 4, 2),
 92         [2] = DEFINE_RES_NAMED(S3C_EINT(7), 1, NULL, IORESOURCE_IRQ \
 93                                         | IORESOURCE_IRQ_HIGHLEVEL),
 94 };
 95 
 96 static struct dm9000_plat_data real6410_dm9k_pdata = {
 97         .flags          = (DM9000_PLATF_16BITONLY | DM9000_PLATF_NO_EEPROM),
 98 };
 99 
100 static struct platform_device real6410_device_eth = {
101         .name           = "dm9000",
102         .id             = -1,
103         .num_resources  = ARRAY_SIZE(real6410_dm9k_resource),
104         .resource       = real6410_dm9k_resource,
105         .dev            = {
106                 .platform_data  = &real6410_dm9k_pdata,
107         },
108 };
109 
110 static struct s3c_fb_pd_win real6410_lcd_type0_fb_win = {
111         .max_bpp        = 32,
112         .default_bpp    = 16,
113         .xres           = 480,
114         .yres           = 272,
115 };
116 
117 static struct fb_videomode real6410_lcd_type0_timing = {
118         /* 4.3" 480x272 */
119         .left_margin    = 3,
120         .right_margin   = 2,
121         .upper_margin   = 1,
122         .lower_margin   = 1,
123         .hsync_len      = 40,
124         .vsync_len      = 1,
125 };
126 
127 static struct s3c_fb_pd_win real6410_lcd_type1_fb_win = {
128         .max_bpp        = 32,
129         .default_bpp    = 16,
130         .xres           = 800,
131         .yres           = 480,
132 };
133 
134 static struct fb_videomode real6410_lcd_type1_timing = {
135         /* 7.0" 800x480 */
136         .left_margin    = 8,
137         .right_margin   = 13,
138         .upper_margin   = 7,
139         .lower_margin   = 5,
140         .hsync_len      = 3,
141         .vsync_len      = 1,
142         .xres           = 800,
143         .yres           = 480,
144 };
145 
146 static struct s3c_fb_platdata real6410_lcd_pdata[] __initdata = {
147         {
148                 .setup_gpio     = s3c64xx_fb_gpio_setup_24bpp,
149                 .vtiming        = &real6410_lcd_type0_timing,
150                 .win[0]         = &real6410_lcd_type0_fb_win,
151                 .vidcon0        = VIDCON0_VIDOUT_RGB | VIDCON0_PNRMODE_RGB,
152                 .vidcon1        = VIDCON1_INV_HSYNC | VIDCON1_INV_VSYNC,
153         }, {
154                 .setup_gpio     = s3c64xx_fb_gpio_setup_24bpp,
155                 .vtiming        = &real6410_lcd_type1_timing,
156                 .win[0]         = &real6410_lcd_type1_fb_win,
157                 .vidcon0        = VIDCON0_VIDOUT_RGB | VIDCON0_PNRMODE_RGB,
158                 .vidcon1        = VIDCON1_INV_HSYNC | VIDCON1_INV_VSYNC,
159         },
160         { },
161 };
162 
163 static struct mtd_partition real6410_nand_part[] = {
164         [0] = {
165                 .name   = "uboot",
166                 .size   = SZ_1M,
167                 .offset = 0,
168         },
169         [1] = {
170                 .name   = "kernel",
171                 .size   = SZ_2M,
172                 .offset = SZ_1M,
173         },
174         [2] = {
175                 .name   = "rootfs",
176                 .size   = MTDPART_SIZ_FULL,
177                 .offset = SZ_1M + SZ_2M,
178         },
179 };
180 
181 static struct s3c2410_nand_set real6410_nand_sets[] = {
182         [0] = {
183                 .name           = "nand",
184                 .nr_chips       = 1,
185                 .nr_partitions  = ARRAY_SIZE(real6410_nand_part),
186                 .partitions     = real6410_nand_part,
187         },
188 };
189 
190 static struct s3c2410_platform_nand real6410_nand_info = {
191         .tacls          = 25,
192         .twrph0         = 55,
193         .twrph1         = 40,
194         .nr_sets        = ARRAY_SIZE(real6410_nand_sets),
195         .sets           = real6410_nand_sets,
196 };
197 
198 static struct platform_device *real6410_devices[] __initdata = {
199         &real6410_device_eth,
200         &s3c_device_hsmmc0,
201         &s3c_device_hsmmc1,
202         &s3c_device_fb,
203         &s3c_device_nand,
204         &s3c_device_adc,
205         &s3c_device_ts,
206         &s3c_device_ohci,
207 };
208 
209 static void __init real6410_map_io(void)
210 {
211         u32 tmp;
212 
213         s3c64xx_init_io(NULL, 0);
214         s3c24xx_init_clocks(12000000);
215         s3c24xx_init_uarts(real6410_uartcfgs, ARRAY_SIZE(real6410_uartcfgs));
216         samsung_set_timer_source(SAMSUNG_PWM3, SAMSUNG_PWM4);
217 
218         /* set the LCD type */
219         tmp = __raw_readl(S3C64XX_SPCON);
220         tmp &= ~S3C64XX_SPCON_LCD_SEL_MASK;
221         tmp |= S3C64XX_SPCON_LCD_SEL_RGB;
222         __raw_writel(tmp, S3C64XX_SPCON);
223 
224         /* remove the LCD bypass */
225         tmp = __raw_readl(S3C64XX_MODEM_MIFPCON);
226         tmp &= ~MIFPCON_LCD_BYPASS;
227         __raw_writel(tmp, S3C64XX_MODEM_MIFPCON);
228 }
229 
230 /*
231  * real6410_features string
232  *
233  * 0-9 LCD configuration
234  *
235  */
236 static char real6410_features_str[12] __initdata = "";
237 
238 static int __init real6410_features_setup(char *str)
239 {
240         if (str)
241                 strlcpy(real6410_features_str, str,
242                         sizeof(real6410_features_str));
243         return 1;
244 }
245 
246 __setup("real6410=", real6410_features_setup);
247 
248 #define FEATURE_SCREEN (1 << 0)
249 
250 struct real6410_features_t {
251         int done;
252         int lcd_index;
253 };
254 
255 static void real6410_parse_features(
256                 struct real6410_features_t *features,
257                 const char *features_str)
258 {
259         const char *fp = features_str;
260 
261         features->done = 0;
262         features->lcd_index = 0;
263 
264         while (*fp) {
265                 char f = *fp++;
266 
267                 switch (f) {
268                 case ''...'9': /* tft screen */
269                         if (features->done & FEATURE_SCREEN) {
270                                 printk(KERN_INFO "REAL6410: '%c' ignored, "
271                                         "screen type already set\n", f);
272                         } else {
273                                 int li = f - '';
274                                 if (li >= ARRAY_SIZE(real6410_lcd_pdata))
275                                         printk(KERN_INFO "REAL6410: '%c' out "
276                                                 "of range LCD mode\n", f);
277                                 else {
278                                         features->lcd_index = li;
279                                 }
280                         }
281                         features->done |= FEATURE_SCREEN;
282                         break;
283                 }
284         }
285 }
286 
287 static void __init real6410_machine_init(void)
288 {
289         u32 cs1;
290         struct real6410_features_t features = { 0 };
291 
292         printk(KERN_INFO "REAL6410: Option string real6410=%s\n",
293                         real6410_features_str);
294 
295         /* Parse the feature string */
296         real6410_parse_features(&features, real6410_features_str);
297 
298         printk(KERN_INFO "REAL6410: selected LCD display is %dx%d\n",
299                 real6410_lcd_pdata[features.lcd_index].win[0]->xres,
300                 real6410_lcd_pdata[features.lcd_index].win[0]->yres);
301 
302         s3c_fb_set_platdata(&real6410_lcd_pdata[features.lcd_index]);
303         s3c_nand_set_platdata(&real6410_nand_info);
304         s3c24xx_ts_set_platdata(NULL);
305 
306         /* configure nCS1 width to 16 bits */
307 
308         cs1 = __raw_readl(S3C64XX_SROM_BW) &
309                 ~(S3C64XX_SROM_BW__CS_MASK << S3C64XX_SROM_BW__NCS1__SHIFT);
310         cs1 |= ((1 << S3C64XX_SROM_BW__DATAWIDTH__SHIFT) |
311                 (1 << S3C64XX_SROM_BW__WAITENABLE__SHIFT) |
312                 (1 << S3C64XX_SROM_BW__BYTEENABLE__SHIFT)) <<
313                         S3C64XX_SROM_BW__NCS1__SHIFT;
314         __raw_writel(cs1, S3C64XX_SROM_BW);
315 
316         /* set timing for nCS1 suitable for ethernet chip */
317 
318         __raw_writel((0 << S3C64XX_SROM_BCX__PMC__SHIFT) |
319                 (6 << S3C64XX_SROM_BCX__TACP__SHIFT) |
320                 (4 << S3C64XX_SROM_BCX__TCAH__SHIFT) |
321                 (1 << S3C64XX_SROM_BCX__TCOH__SHIFT) |
322                 (13 << S3C64XX_SROM_BCX__TACC__SHIFT) |
323                 (4 << S3C64XX_SROM_BCX__TCOS__SHIFT) |
324                 (0 << S3C64XX_SROM_BCX__TACS__SHIFT), S3C64XX_SROM_BC1);
325 
326         gpio_request(S3C64XX_GPF(15), "LCD power");
327 
328         platform_add_devices(real6410_devices, ARRAY_SIZE(real6410_devices));
329 }
330 
331 MACHINE_START(REAL6410, "REAL6410")
332         /* Maintainer: Darius Augulis <augulis.darius@gmail.com> */
333         .atag_offset    = 0x100,
334 
335         .init_irq       = s3c6410_init_irq,
336         .map_io         = real6410_map_io,
337         .init_machine   = real6410_machine_init,
338         .init_late      = s3c64xx_init_late,
339         .init_time      = samsung_timer_init,
340         .restart        = s3c64xx_restart,
341 MACHINE_END
342 

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