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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/serial_s3c.h>
 27 #include <linux/types.h>
 28 
 29 #include <asm/mach-types.h>
 30 #include <asm/mach/arch.h>
 31 #include <asm/mach/map.h>
 32 
 33 #include <mach/map.h>
 34 #include <mach/regs-gpio.h>
 35 #include <mach/gpio-samsung.h>
 36 #include <mach/irqs.h>
 37 
 38 #include <plat/adc.h>
 39 #include <plat/cpu.h>
 40 #include <plat/devs.h>
 41 #include <plat/fb.h>
 42 #include <linux/platform_data/mtd-nand-s3c2410.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 real6410_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 real6410_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 real6410_dm9k_pdata = {
 98         .flags          = (DM9000_PLATF_16BITONLY | DM9000_PLATF_NO_EEPROM),
 99 };
100 
101 static struct platform_device real6410_device_eth = {
102         .name           = "dm9000",
103         .id             = -1,
104         .num_resources  = ARRAY_SIZE(real6410_dm9k_resource),
105         .resource       = real6410_dm9k_resource,
106         .dev            = {
107                 .platform_data  = &real6410_dm9k_pdata,
108         },
109 };
110 
111 static struct s3c_fb_pd_win real6410_lcd_type0_fb_win = {
112         .max_bpp        = 32,
113         .default_bpp    = 16,
114         .xres           = 480,
115         .yres           = 272,
116 };
117 
118 static struct fb_videomode real6410_lcd_type0_timing = {
119         /* 4.3" 480x272 */
120         .left_margin    = 3,
121         .right_margin   = 2,
122         .upper_margin   = 1,
123         .lower_margin   = 1,
124         .hsync_len      = 40,
125         .vsync_len      = 1,
126 };
127 
128 static struct s3c_fb_pd_win real6410_lcd_type1_fb_win = {
129         .max_bpp        = 32,
130         .default_bpp    = 16,
131         .xres           = 800,
132         .yres           = 480,
133 };
134 
135 static struct fb_videomode real6410_lcd_type1_timing = {
136         /* 7.0" 800x480 */
137         .left_margin    = 8,
138         .right_margin   = 13,
139         .upper_margin   = 7,
140         .lower_margin   = 5,
141         .hsync_len      = 3,
142         .vsync_len      = 1,
143         .xres           = 800,
144         .yres           = 480,
145 };
146 
147 static struct s3c_fb_platdata real6410_lcd_pdata[] __initdata = {
148         {
149                 .setup_gpio     = s3c64xx_fb_gpio_setup_24bpp,
150                 .vtiming        = &real6410_lcd_type0_timing,
151                 .win[0]         = &real6410_lcd_type0_fb_win,
152                 .vidcon0        = VIDCON0_VIDOUT_RGB | VIDCON0_PNRMODE_RGB,
153                 .vidcon1        = VIDCON1_INV_HSYNC | VIDCON1_INV_VSYNC,
154         }, {
155                 .setup_gpio     = s3c64xx_fb_gpio_setup_24bpp,
156                 .vtiming        = &real6410_lcd_type1_timing,
157                 .win[0]         = &real6410_lcd_type1_fb_win,
158                 .vidcon0        = VIDCON0_VIDOUT_RGB | VIDCON0_PNRMODE_RGB,
159                 .vidcon1        = VIDCON1_INV_HSYNC | VIDCON1_INV_VSYNC,
160         },
161         { },
162 };
163 
164 static struct mtd_partition real6410_nand_part[] = {
165         [0] = {
166                 .name   = "uboot",
167                 .size   = SZ_1M,
168                 .offset = 0,
169         },
170         [1] = {
171                 .name   = "kernel",
172                 .size   = SZ_2M,
173                 .offset = SZ_1M,
174         },
175         [2] = {
176                 .name   = "rootfs",
177                 .size   = MTDPART_SIZ_FULL,
178                 .offset = SZ_1M + SZ_2M,
179         },
180 };
181 
182 static struct s3c2410_nand_set real6410_nand_sets[] = {
183         [0] = {
184                 .name           = "nand",
185                 .nr_chips       = 1,
186                 .nr_partitions  = ARRAY_SIZE(real6410_nand_part),
187                 .partitions     = real6410_nand_part,
188         },
189 };
190 
191 static struct s3c2410_platform_nand real6410_nand_info = {
192         .tacls          = 25,
193         .twrph0         = 55,
194         .twrph1         = 40,
195         .nr_sets        = ARRAY_SIZE(real6410_nand_sets),
196         .sets           = real6410_nand_sets,
197         .ecc_mode       = NAND_ECC_SOFT,
198 };
199 
200 static struct platform_device *real6410_devices[] __initdata = {
201         &real6410_device_eth,
202         &s3c_device_hsmmc0,
203         &s3c_device_hsmmc1,
204         &s3c_device_fb,
205         &s3c_device_nand,
206         &s3c_device_adc,
207         &s3c_device_ohci,
208 };
209 
210 static void __init real6410_map_io(void)
211 {
212         u32 tmp;
213 
214         s3c64xx_init_io(NULL, 0);
215         s3c24xx_init_clocks(12000000);
216         s3c24xx_init_uarts(real6410_uartcfgs, ARRAY_SIZE(real6410_uartcfgs));
217         samsung_set_timer_source(SAMSUNG_PWM3, SAMSUNG_PWM4);
218 
219         /* set the LCD type */
220         tmp = __raw_readl(S3C64XX_SPCON);
221         tmp &= ~S3C64XX_SPCON_LCD_SEL_MASK;
222         tmp |= S3C64XX_SPCON_LCD_SEL_RGB;
223         __raw_writel(tmp, S3C64XX_SPCON);
224 
225         /* remove the LCD bypass */
226         tmp = __raw_readl(S3C64XX_MODEM_MIFPCON);
227         tmp &= ~MIFPCON_LCD_BYPASS;
228         __raw_writel(tmp, S3C64XX_MODEM_MIFPCON);
229 }
230 
231 /*
232  * real6410_features string
233  *
234  * 0-9 LCD configuration
235  *
236  */
237 static char real6410_features_str[12] __initdata = "";
238 
239 static int __init real6410_features_setup(char *str)
240 {
241         if (str)
242                 strlcpy(real6410_features_str, str,
243                         sizeof(real6410_features_str));
244         return 1;
245 }
246 
247 __setup("real6410=", real6410_features_setup);
248 
249 #define FEATURE_SCREEN (1 << 0)
250 
251 struct real6410_features_t {
252         int done;
253         int lcd_index;
254 };
255 
256 static void real6410_parse_features(
257                 struct real6410_features_t *features,
258                 const char *features_str)
259 {
260         const char *fp = features_str;
261 
262         features->done = 0;
263         features->lcd_index = 0;
264 
265         while (*fp) {
266                 char f = *fp++;
267 
268                 switch (f) {
269                 case ''...'9': /* tft screen */
270                         if (features->done & FEATURE_SCREEN) {
271                                 printk(KERN_INFO "REAL6410: '%c' ignored, "
272                                         "screen type already set\n", f);
273                         } else {
274                                 int li = f - '';
275                                 if (li >= ARRAY_SIZE(real6410_lcd_pdata))
276                                         printk(KERN_INFO "REAL6410: '%c' out "
277                                                 "of range LCD mode\n", f);
278                                 else {
279                                         features->lcd_index = li;
280                                 }
281                         }
282                         features->done |= FEATURE_SCREEN;
283                         break;
284                 }
285         }
286 }
287 
288 static void __init real6410_machine_init(void)
289 {
290         u32 cs1;
291         struct real6410_features_t features = { 0 };
292 
293         printk(KERN_INFO "REAL6410: Option string real6410=%s\n",
294                         real6410_features_str);
295 
296         /* Parse the feature string */
297         real6410_parse_features(&features, real6410_features_str);
298 
299         printk(KERN_INFO "REAL6410: selected LCD display is %dx%d\n",
300                 real6410_lcd_pdata[features.lcd_index].win[0]->xres,
301                 real6410_lcd_pdata[features.lcd_index].win[0]->yres);
302 
303         s3c_fb_set_platdata(&real6410_lcd_pdata[features.lcd_index]);
304         s3c_nand_set_platdata(&real6410_nand_info);
305         s3c64xx_ts_set_platdata(NULL);
306 
307         /* configure nCS1 width to 16 bits */
308 
309         cs1 = __raw_readl(S3C64XX_SROM_BW) &
310                 ~(S3C64XX_SROM_BW__CS_MASK << S3C64XX_SROM_BW__NCS1__SHIFT);
311         cs1 |= ((1 << S3C64XX_SROM_BW__DATAWIDTH__SHIFT) |
312                 (1 << S3C64XX_SROM_BW__WAITENABLE__SHIFT) |
313                 (1 << S3C64XX_SROM_BW__BYTEENABLE__SHIFT)) <<
314                         S3C64XX_SROM_BW__NCS1__SHIFT;
315         __raw_writel(cs1, S3C64XX_SROM_BW);
316 
317         /* set timing for nCS1 suitable for ethernet chip */
318 
319         __raw_writel((0 << S3C64XX_SROM_BCX__PMC__SHIFT) |
320                 (6 << S3C64XX_SROM_BCX__TACP__SHIFT) |
321                 (4 << S3C64XX_SROM_BCX__TCAH__SHIFT) |
322                 (1 << S3C64XX_SROM_BCX__TCOH__SHIFT) |
323                 (13 << S3C64XX_SROM_BCX__TACC__SHIFT) |
324                 (4 << S3C64XX_SROM_BCX__TCOS__SHIFT) |
325                 (0 << S3C64XX_SROM_BCX__TACS__SHIFT), S3C64XX_SROM_BC1);
326 
327         gpio_request(S3C64XX_GPF(15), "LCD power");
328 
329         platform_add_devices(real6410_devices, ARRAY_SIZE(real6410_devices));
330 }
331 
332 MACHINE_START(REAL6410, "REAL6410")
333         /* Maintainer: Darius Augulis <augulis.darius@gmail.com> */
334         .atag_offset    = 0x100,
335         .nr_irqs        = S3C64XX_NR_IRQS,
336         .init_irq       = s3c6410_init_irq,
337         .map_io         = real6410_map_io,
338         .init_machine   = real6410_machine_init,
339         .init_time      = samsung_timer_init,
340         .restart        = s3c64xx_restart,
341 MACHINE_END
342 

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