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Linux/arch/arm/mach-s3c64xx/mach-mini6410.c

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  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/serial_core.h>
 19 #include <linux/serial_s3c.h>
 20 #include <linux/types.h>
 21 
 22 #include <asm/mach-types.h>
 23 #include <asm/mach/arch.h>
 24 #include <asm/mach/map.h>
 25 
 26 #include <mach/map.h>
 27 #include <mach/regs-gpio.h>
 28 #include <mach/gpio-samsung.h>
 29 
 30 #include <plat/adc.h>
 31 #include <plat/cpu.h>
 32 #include <plat/devs.h>
 33 #include <plat/fb.h>
 34 #include <linux/platform_data/mtd-nand-s3c2410.h>
 35 #include <linux/platform_data/mmc-sdhci-s3c.h>
 36 #include <plat/sdhci.h>
 37 #include <linux/platform_data/touchscreen-s3c2410.h>
 38 #include <mach/irqs.h>
 39 
 40 #include <video/platform_lcd.h>
 41 #include <video/samsung_fimd.h>
 42 #include <plat/samsung-time.h>
 43 
 44 #include "common.h"
 45 #include "regs-modem.h"
 46 #include "regs-srom.h"
 47 
 48 #define UCON S3C2410_UCON_DEFAULT
 49 #define ULCON (S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB)
 50 #define UFCON (S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE)
 51 
 52 static struct s3c2410_uartcfg mini6410_uartcfgs[] __initdata = {
 53         [0] = {
 54                 .hwport = 0,
 55                 .flags  = 0,
 56                 .ucon   = UCON,
 57                 .ulcon  = ULCON,
 58                 .ufcon  = UFCON,
 59         },
 60         [1] = {
 61                 .hwport = 1,
 62                 .flags  = 0,
 63                 .ucon   = UCON,
 64                 .ulcon  = ULCON,
 65                 .ufcon  = UFCON,
 66         },
 67         [2] = {
 68                 .hwport = 2,
 69                 .flags  = 0,
 70                 .ucon   = UCON,
 71                 .ulcon  = ULCON,
 72                 .ufcon  = UFCON,
 73         },
 74         [3] = {
 75                 .hwport = 3,
 76                 .flags  = 0,
 77                 .ucon   = UCON,
 78                 .ulcon  = ULCON,
 79                 .ufcon  = UFCON,
 80         },
 81 };
 82 
 83 /* DM9000AEP 10/100 ethernet controller */
 84 
 85 static struct resource mini6410_dm9k_resource[] = {
 86         [0] = DEFINE_RES_MEM(S3C64XX_PA_XM0CSN1, 2),
 87         [1] = DEFINE_RES_MEM(S3C64XX_PA_XM0CSN1 + 4, 2),
 88         [2] = DEFINE_RES_NAMED(S3C_EINT(7), 1, NULL, IORESOURCE_IRQ \
 89                                         | IORESOURCE_IRQ_HIGHLEVEL),
 90 };
 91 
 92 static struct dm9000_plat_data mini6410_dm9k_pdata = {
 93         .flags          = (DM9000_PLATF_16BITONLY | DM9000_PLATF_NO_EEPROM),
 94 };
 95 
 96 static struct platform_device mini6410_device_eth = {
 97         .name           = "dm9000",
 98         .id             = -1,
 99         .num_resources  = ARRAY_SIZE(mini6410_dm9k_resource),
100         .resource       = mini6410_dm9k_resource,
101         .dev            = {
102                 .platform_data  = &mini6410_dm9k_pdata,
103         },
104 };
105 
106 static struct mtd_partition mini6410_nand_part[] = {
107         [0] = {
108                 .name   = "uboot",
109                 .size   = SZ_1M,
110                 .offset = 0,
111         },
112         [1] = {
113                 .name   = "kernel",
114                 .size   = SZ_2M,
115                 .offset = SZ_1M,
116         },
117         [2] = {
118                 .name   = "rootfs",
119                 .size   = MTDPART_SIZ_FULL,
120                 .offset = SZ_1M + SZ_2M,
121         },
122 };
123 
124 static struct s3c2410_nand_set mini6410_nand_sets[] = {
125         [0] = {
126                 .name           = "nand",
127                 .nr_chips       = 1,
128                 .nr_partitions  = ARRAY_SIZE(mini6410_nand_part),
129                 .partitions     = mini6410_nand_part,
130         },
131 };
132 
133 static struct s3c2410_platform_nand mini6410_nand_info = {
134         .tacls          = 25,
135         .twrph0         = 55,
136         .twrph1         = 40,
137         .nr_sets        = ARRAY_SIZE(mini6410_nand_sets),
138         .sets           = mini6410_nand_sets,
139         .ecc_mode       = NAND_ECC_SOFT,
140 };
141 
142 static struct s3c_fb_pd_win mini6410_lcd_type0_fb_win = {
143         .max_bpp        = 32,
144         .default_bpp    = 16,
145         .xres           = 480,
146         .yres           = 272,
147 };
148 
149 static struct fb_videomode mini6410_lcd_type0_timing = {
150         /* 4.3" 480x272 */
151         .left_margin    = 3,
152         .right_margin   = 2,
153         .upper_margin   = 1,
154         .lower_margin   = 1,
155         .hsync_len      = 40,
156         .vsync_len      = 1,
157         .xres           = 480,
158         .yres           = 272,
159 };
160 
161 static struct s3c_fb_pd_win mini6410_lcd_type1_fb_win = {
162         .max_bpp        = 32,
163         .default_bpp    = 16,
164         .xres           = 800,
165         .yres           = 480,
166 };
167 
168 static struct fb_videomode mini6410_lcd_type1_timing = {
169         /* 7.0" 800x480 */
170         .left_margin    = 8,
171         .right_margin   = 13,
172         .upper_margin   = 7,
173         .lower_margin   = 5,
174         .hsync_len      = 3,
175         .vsync_len      = 1,
176         .xres           = 800,
177         .yres           = 480,
178 };
179 
180 static struct s3c_fb_platdata mini6410_lcd_pdata[] __initdata = {
181         {
182                 .setup_gpio     = s3c64xx_fb_gpio_setup_24bpp,
183                 .vtiming        = &mini6410_lcd_type0_timing,
184                 .win[0]         = &mini6410_lcd_type0_fb_win,
185                 .vidcon0        = VIDCON0_VIDOUT_RGB | VIDCON0_PNRMODE_RGB,
186                 .vidcon1        = VIDCON1_INV_HSYNC | VIDCON1_INV_VSYNC,
187         }, {
188                 .setup_gpio     = s3c64xx_fb_gpio_setup_24bpp,
189                 .vtiming        = &mini6410_lcd_type1_timing,
190                 .win[0]         = &mini6410_lcd_type1_fb_win,
191                 .vidcon0        = VIDCON0_VIDOUT_RGB | VIDCON0_PNRMODE_RGB,
192                 .vidcon1        = VIDCON1_INV_HSYNC | VIDCON1_INV_VSYNC,
193         },
194         { },
195 };
196 
197 static void mini6410_lcd_power_set(struct plat_lcd_data *pd,
198                                    unsigned int power)
199 {
200         if (power)
201                 gpio_direction_output(S3C64XX_GPE(0), 1);
202         else
203                 gpio_direction_output(S3C64XX_GPE(0), 0);
204 }
205 
206 static struct plat_lcd_data mini6410_lcd_power_data = {
207         .set_power      = mini6410_lcd_power_set,
208 };
209 
210 static struct platform_device mini6410_lcd_powerdev = {
211         .name                   = "platform-lcd",
212         .dev.parent             = &s3c_device_fb.dev,
213         .dev.platform_data      = &mini6410_lcd_power_data,
214 };
215 
216 static struct s3c_sdhci_platdata mini6410_hsmmc1_pdata = {
217         .max_width              = 4,
218         .cd_type                = S3C_SDHCI_CD_GPIO,
219         .ext_cd_gpio            = S3C64XX_GPN(10),
220         .ext_cd_gpio_invert     = true,
221 };
222 
223 static struct platform_device *mini6410_devices[] __initdata = {
224         &mini6410_device_eth,
225         &s3c_device_hsmmc0,
226         &s3c_device_hsmmc1,
227         &s3c_device_ohci,
228         &s3c_device_nand,
229         &s3c_device_fb,
230         &mini6410_lcd_powerdev,
231         &s3c_device_adc,
232 };
233 
234 static void __init mini6410_map_io(void)
235 {
236         u32 tmp;
237 
238         s3c64xx_init_io(NULL, 0);
239         s3c64xx_set_xtal_freq(12000000);
240         s3c24xx_init_uarts(mini6410_uartcfgs, ARRAY_SIZE(mini6410_uartcfgs));
241         samsung_set_timer_source(SAMSUNG_PWM3, SAMSUNG_PWM4);
242 
243         /* set the LCD type */
244         tmp = __raw_readl(S3C64XX_SPCON);
245         tmp &= ~S3C64XX_SPCON_LCD_SEL_MASK;
246         tmp |= S3C64XX_SPCON_LCD_SEL_RGB;
247         __raw_writel(tmp, S3C64XX_SPCON);
248 
249         /* remove the LCD bypass */
250         tmp = __raw_readl(S3C64XX_MODEM_MIFPCON);
251         tmp &= ~MIFPCON_LCD_BYPASS;
252         __raw_writel(tmp, S3C64XX_MODEM_MIFPCON);
253 }
254 
255 /*
256  * mini6410_features string
257  *
258  * 0-9 LCD configuration
259  *
260  */
261 static char mini6410_features_str[12] __initdata = "";
262 
263 static int __init mini6410_features_setup(char *str)
264 {
265         if (str)
266                 strlcpy(mini6410_features_str, str,
267                         sizeof(mini6410_features_str));
268         return 1;
269 }
270 
271 __setup("mini6410=", mini6410_features_setup);
272 
273 #define FEATURE_SCREEN (1 << 0)
274 
275 struct mini6410_features_t {
276         int done;
277         int lcd_index;
278 };
279 
280 static void mini6410_parse_features(
281                 struct mini6410_features_t *features,
282                 const char *features_str)
283 {
284         const char *fp = features_str;
285 
286         features->done = 0;
287         features->lcd_index = 0;
288 
289         while (*fp) {
290                 char f = *fp++;
291 
292                 switch (f) {
293                 case ''...'9': /* tft screen */
294                         if (features->done & FEATURE_SCREEN) {
295                                 printk(KERN_INFO "MINI6410: '%c' ignored, "
296                                         "screen type already set\n", f);
297                         } else {
298                                 int li = f - '';
299                                 if (li >= ARRAY_SIZE(mini6410_lcd_pdata))
300                                         printk(KERN_INFO "MINI6410: '%c' out "
301                                                 "of range LCD mode\n", f);
302                                 else {
303                                         features->lcd_index = li;
304                                 }
305                         }
306                         features->done |= FEATURE_SCREEN;
307                         break;
308                 }
309         }
310 }
311 
312 static void __init mini6410_machine_init(void)
313 {
314         u32 cs1;
315         struct mini6410_features_t features = { 0 };
316 
317         printk(KERN_INFO "MINI6410: Option string mini6410=%s\n",
318                         mini6410_features_str);
319 
320         /* Parse the feature string */
321         mini6410_parse_features(&features, mini6410_features_str);
322 
323         printk(KERN_INFO "MINI6410: selected LCD display is %dx%d\n",
324                 mini6410_lcd_pdata[features.lcd_index].win[0]->xres,
325                 mini6410_lcd_pdata[features.lcd_index].win[0]->yres);
326 
327         s3c_nand_set_platdata(&mini6410_nand_info);
328         s3c_fb_set_platdata(&mini6410_lcd_pdata[features.lcd_index]);
329         s3c_sdhci1_set_platdata(&mini6410_hsmmc1_pdata);
330         s3c64xx_ts_set_platdata(NULL);
331 
332         /* configure nCS1 width to 16 bits */
333 
334         cs1 = __raw_readl(S3C64XX_SROM_BW) &
335                 ~(S3C64XX_SROM_BW__CS_MASK << S3C64XX_SROM_BW__NCS1__SHIFT);
336         cs1 |= ((1 << S3C64XX_SROM_BW__DATAWIDTH__SHIFT) |
337                 (1 << S3C64XX_SROM_BW__WAITENABLE__SHIFT) |
338                 (1 << S3C64XX_SROM_BW__BYTEENABLE__SHIFT)) <<
339                         S3C64XX_SROM_BW__NCS1__SHIFT;
340         __raw_writel(cs1, S3C64XX_SROM_BW);
341 
342         /* set timing for nCS1 suitable for ethernet chip */
343 
344         __raw_writel((0 << S3C64XX_SROM_BCX__PMC__SHIFT) |
345                 (6 << S3C64XX_SROM_BCX__TACP__SHIFT) |
346                 (4 << S3C64XX_SROM_BCX__TCAH__SHIFT) |
347                 (1 << S3C64XX_SROM_BCX__TCOH__SHIFT) |
348                 (13 << S3C64XX_SROM_BCX__TACC__SHIFT) |
349                 (4 << S3C64XX_SROM_BCX__TCOS__SHIFT) |
350                 (0 << S3C64XX_SROM_BCX__TACS__SHIFT), S3C64XX_SROM_BC1);
351 
352         gpio_request(S3C64XX_GPF(15), "LCD power");
353         gpio_request(S3C64XX_GPE(0), "LCD power");
354 
355         platform_add_devices(mini6410_devices, ARRAY_SIZE(mini6410_devices));
356 }
357 
358 MACHINE_START(MINI6410, "MINI6410")
359         /* Maintainer: Darius Augulis <augulis.darius@gmail.com> */
360         .atag_offset    = 0x100,
361         .nr_irqs        = S3C64XX_NR_IRQS,
362         .init_irq       = s3c6410_init_irq,
363         .map_io         = mini6410_map_io,
364         .init_machine   = mini6410_machine_init,
365         .init_time      = samsung_timer_init,
366         .restart        = s3c64xx_restart,
367 MACHINE_END
368 

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