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
37#include <plat/adc.h>
38#include <plat/cpu.h>
39#include <plat/devs.h>
40#include <plat/fb.h>
41#include <linux/platform_data/mtd-nand-s3c2410.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
56static 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
89static 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
96static struct dm9000_plat_data real6410_dm9k_pdata = {
97	.flags		= (DM9000_PLATF_16BITONLY | DM9000_PLATF_NO_EEPROM),
98};
99
100static 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
110static 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
117static 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
127static 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
134static 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
146static 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
163static 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
181static 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
190static 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
198static 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
209static 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 */
236static char real6410_features_str[12] __initdata = "0";
237
238static 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
250struct real6410_features_t {
251	int done;
252	int lcd_index;
253};
254
255static 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 '0'...'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 - '0';
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
287static 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
331MACHINE_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_time	= samsung_timer_init,
339	.restart	= s3c64xx_restart,
340MACHINE_END
341