1 // SPDX-License-Identifier: GPL-2.0
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 #include <linux/init.h>
10 #include <linux/interrupt.h>
11 #include <linux/fb.h>
12 #include <linux/gpio.h>
13 #include <linux/kernel.h>
14 #include <linux/list.h>
15 #include <linux/dm9000.h>
16 #include <linux/mtd/mtd.h>
17 #include <linux/mtd/partitions.h>
18 #include <linux/platform_device.h>
19 #include <linux/serial_core.h>
20 #include <linux/serial_s3c.h>
21 #include <linux/types.h>
22
23 #include <asm/mach-types.h>
24 #include <asm/mach/arch.h>
25 #include <asm/mach/map.h>
26
27 #include <mach/map.h>
28 #include <mach/regs-gpio.h>
29 #include <mach/gpio-samsung.h>
30 #include <mach/irqs.h>
31
32 #include <plat/adc.h>
33 #include <plat/cpu.h>
34 #include <plat/devs.h>
35 #include <plat/fb.h>
36 #include <linux/platform_data/mtd-nand-s3c2410.h>
37 #include <linux/platform_data/touchscreen-s3c2410.h>
38
39 #include <video/platform_lcd.h>
40 #include <video/samsung_fimd.h>
41 #include <plat/samsung-time.h>
42
43 #include "common.h"
44 #include "regs-modem.h"
45 #include "regs-srom.h"
46
47 #define UCON S3C2410_UCON_DEFAULT
48 #define ULCON (S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB)
49 #define UFCON (S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE)
50
51 static struct s3c2410_uartcfg real6410_uartcfgs[] __initdata = {
52 [0] = {
53 .hwport = 0,
54 .flags = 0,
55 .ucon = UCON,
56 .ulcon = ULCON,
57 .ufcon = UFCON,
58 },
59 [1] = {
60 .hwport = 1,
61 .flags = 0,
62 .ucon = UCON,
63 .ulcon = ULCON,
64 .ufcon = UFCON,
65 },
66 [2] = {
67 .hwport = 2,
68 .flags = 0,
69 .ucon = UCON,
70 .ulcon = ULCON,
71 .ufcon = UFCON,
72 },
73 [3] = {
74 .hwport = 3,
75 .flags = 0,
76 .ucon = UCON,
77 .ulcon = ULCON,
78 .ufcon = UFCON,
79 },
80 };
81
82 /* DM9000AEP 10/100 ethernet controller */
83
84 static struct resource real6410_dm9k_resource[] = {
85 [0] = DEFINE_RES_MEM(S3C64XX_PA_XM0CSN1, 2),
86 [1] = DEFINE_RES_MEM(S3C64XX_PA_XM0CSN1 + 4, 2),
87 [2] = DEFINE_RES_NAMED(S3C_EINT(7), 1, NULL, IORESOURCE_IRQ \
88 | IORESOURCE_IRQ_HIGHLEVEL),
89 };
90
91 static struct dm9000_plat_data real6410_dm9k_pdata = {
92 .flags = (DM9000_PLATF_16BITONLY | DM9000_PLATF_NO_EEPROM),
93 };
94
95 static struct platform_device real6410_device_eth = {
96 .name = "dm9000",
97 .id = -1,
98 .num_resources = ARRAY_SIZE(real6410_dm9k_resource),
99 .resource = real6410_dm9k_resource,
100 .dev = {
101 .platform_data = &real6410_dm9k_pdata,
102 },
103 };
104
105 static struct s3c_fb_pd_win real6410_lcd_type0_fb_win = {
106 .max_bpp = 32,
107 .default_bpp = 16,
108 .xres = 480,
109 .yres = 272,
110 };
111
112 static struct fb_videomode real6410_lcd_type0_timing = {
113 /* 4.3" 480x272 */
114 .left_margin = 3,
115 .right_margin = 2,
116 .upper_margin = 1,
117 .lower_margin = 1,
118 .hsync_len = 40,
119 .vsync_len = 1,
120 };
121
122 static struct s3c_fb_pd_win real6410_lcd_type1_fb_win = {
123 .max_bpp = 32,
124 .default_bpp = 16,
125 .xres = 800,
126 .yres = 480,
127 };
128
129 static struct fb_videomode real6410_lcd_type1_timing = {
130 /* 7.0" 800x480 */
131 .left_margin = 8,
132 .right_margin = 13,
133 .upper_margin = 7,
134 .lower_margin = 5,
135 .hsync_len = 3,
136 .vsync_len = 1,
137 .xres = 800,
138 .yres = 480,
139 };
140
141 static struct s3c_fb_platdata real6410_lcd_pdata[] __initdata = {
142 {
143 .setup_gpio = s3c64xx_fb_gpio_setup_24bpp,
144 .vtiming = &real6410_lcd_type0_timing,
145 .win[0] = &real6410_lcd_type0_fb_win,
146 .vidcon0 = VIDCON0_VIDOUT_RGB | VIDCON0_PNRMODE_RGB,
147 .vidcon1 = VIDCON1_INV_HSYNC | VIDCON1_INV_VSYNC,
148 }, {
149 .setup_gpio = s3c64xx_fb_gpio_setup_24bpp,
150 .vtiming = &real6410_lcd_type1_timing,
151 .win[0] = &real6410_lcd_type1_fb_win,
152 .vidcon0 = VIDCON0_VIDOUT_RGB | VIDCON0_PNRMODE_RGB,
153 .vidcon1 = VIDCON1_INV_HSYNC | VIDCON1_INV_VSYNC,
154 },
155 { },
156 };
157
158 static struct mtd_partition real6410_nand_part[] = {
159 [0] = {
160 .name = "uboot",
161 .size = SZ_1M,
162 .offset = 0,
163 },
164 [1] = {
165 .name = "kernel",
166 .size = SZ_2M,
167 .offset = SZ_1M,
168 },
169 [2] = {
170 .name = "rootfs",
171 .size = MTDPART_SIZ_FULL,
172 .offset = SZ_1M + SZ_2M,
173 },
174 };
175
176 static struct s3c2410_nand_set real6410_nand_sets[] = {
177 [0] = {
178 .name = "nand",
179 .nr_chips = 1,
180 .nr_partitions = ARRAY_SIZE(real6410_nand_part),
181 .partitions = real6410_nand_part,
182 },
183 };
184
185 static struct s3c2410_platform_nand real6410_nand_info = {
186 .tacls = 25,
187 .twrph0 = 55,
188 .twrph1 = 40,
189 .nr_sets = ARRAY_SIZE(real6410_nand_sets),
190 .sets = real6410_nand_sets,
191 .ecc_mode = NAND_ECC_SOFT,
192 };
193
194 static struct platform_device *real6410_devices[] __initdata = {
195 &real6410_device_eth,
196 &s3c_device_hsmmc0,
197 &s3c_device_hsmmc1,
198 &s3c_device_fb,
199 &s3c_device_nand,
200 &s3c_device_adc,
201 &s3c_device_ohci,
202 };
203
real6410_map_io(void)204 static void __init real6410_map_io(void)
205 {
206 u32 tmp;
207
208 s3c64xx_init_io(NULL, 0);
209 s3c24xx_init_clocks(12000000);
210 s3c24xx_init_uarts(real6410_uartcfgs, ARRAY_SIZE(real6410_uartcfgs));
211 samsung_set_timer_source(SAMSUNG_PWM3, SAMSUNG_PWM4);
212
213 /* set the LCD type */
214 tmp = __raw_readl(S3C64XX_SPCON);
215 tmp &= ~S3C64XX_SPCON_LCD_SEL_MASK;
216 tmp |= S3C64XX_SPCON_LCD_SEL_RGB;
217 __raw_writel(tmp, S3C64XX_SPCON);
218
219 /* remove the LCD bypass */
220 tmp = __raw_readl(S3C64XX_MODEM_MIFPCON);
221 tmp &= ~MIFPCON_LCD_BYPASS;
222 __raw_writel(tmp, S3C64XX_MODEM_MIFPCON);
223 }
224
225 /*
226 * real6410_features string
227 *
228 * 0-9 LCD configuration
229 *
230 */
231 static char real6410_features_str[12] __initdata = "0";
232
real6410_features_setup(char * str)233 static int __init real6410_features_setup(char *str)
234 {
235 if (str)
236 strlcpy(real6410_features_str, str,
237 sizeof(real6410_features_str));
238 return 1;
239 }
240
241 __setup("real6410=", real6410_features_setup);
242
243 #define FEATURE_SCREEN (1 << 0)
244
245 struct real6410_features_t {
246 int done;
247 int lcd_index;
248 };
249
real6410_parse_features(struct real6410_features_t * features,const char * features_str)250 static void real6410_parse_features(
251 struct real6410_features_t *features,
252 const char *features_str)
253 {
254 const char *fp = features_str;
255
256 features->done = 0;
257 features->lcd_index = 0;
258
259 while (*fp) {
260 char f = *fp++;
261
262 switch (f) {
263 case '0'...'9': /* tft screen */
264 if (features->done & FEATURE_SCREEN) {
265 printk(KERN_INFO "REAL6410: '%c' ignored, "
266 "screen type already set\n", f);
267 } else {
268 int li = f - '0';
269 if (li >= ARRAY_SIZE(real6410_lcd_pdata))
270 printk(KERN_INFO "REAL6410: '%c' out "
271 "of range LCD mode\n", f);
272 else {
273 features->lcd_index = li;
274 }
275 }
276 features->done |= FEATURE_SCREEN;
277 break;
278 }
279 }
280 }
281
real6410_machine_init(void)282 static void __init real6410_machine_init(void)
283 {
284 u32 cs1;
285 struct real6410_features_t features = { 0 };
286
287 printk(KERN_INFO "REAL6410: Option string real6410=%s\n",
288 real6410_features_str);
289
290 /* Parse the feature string */
291 real6410_parse_features(&features, real6410_features_str);
292
293 printk(KERN_INFO "REAL6410: selected LCD display is %dx%d\n",
294 real6410_lcd_pdata[features.lcd_index].win[0]->xres,
295 real6410_lcd_pdata[features.lcd_index].win[0]->yres);
296
297 s3c_fb_set_platdata(&real6410_lcd_pdata[features.lcd_index]);
298 s3c_nand_set_platdata(&real6410_nand_info);
299 s3c64xx_ts_set_platdata(NULL);
300
301 /* configure nCS1 width to 16 bits */
302
303 cs1 = __raw_readl(S3C64XX_SROM_BW) &
304 ~(S3C64XX_SROM_BW__CS_MASK << S3C64XX_SROM_BW__NCS1__SHIFT);
305 cs1 |= ((1 << S3C64XX_SROM_BW__DATAWIDTH__SHIFT) |
306 (1 << S3C64XX_SROM_BW__WAITENABLE__SHIFT) |
307 (1 << S3C64XX_SROM_BW__BYTEENABLE__SHIFT)) <<
308 S3C64XX_SROM_BW__NCS1__SHIFT;
309 __raw_writel(cs1, S3C64XX_SROM_BW);
310
311 /* set timing for nCS1 suitable for ethernet chip */
312
313 __raw_writel((0 << S3C64XX_SROM_BCX__PMC__SHIFT) |
314 (6 << S3C64XX_SROM_BCX__TACP__SHIFT) |
315 (4 << S3C64XX_SROM_BCX__TCAH__SHIFT) |
316 (1 << S3C64XX_SROM_BCX__TCOH__SHIFT) |
317 (13 << S3C64XX_SROM_BCX__TACC__SHIFT) |
318 (4 << S3C64XX_SROM_BCX__TCOS__SHIFT) |
319 (0 << S3C64XX_SROM_BCX__TACS__SHIFT), S3C64XX_SROM_BC1);
320
321 gpio_request(S3C64XX_GPF(15), "LCD power");
322
323 platform_add_devices(real6410_devices, ARRAY_SIZE(real6410_devices));
324 }
325
326 MACHINE_START(REAL6410, "REAL6410")
327 /* Maintainer: Darius Augulis <augulis.darius@gmail.com> */
328 .atag_offset = 0x100,
329 .nr_irqs = S3C64XX_NR_IRQS,
330 .init_irq = s3c6410_init_irq,
331 .map_io = real6410_map_io,
332 .init_machine = real6410_machine_init,
333 .init_time = samsung_timer_init,
334 .restart = s3c64xx_restart,
335 MACHINE_END
336
