1/*
2 * Copyright (c) 2003-2008 Simtec Electronics
3 *   Ben Dooks <ben@simtec.co.uk>
4 *
5 * Machine support for Thorcom VR1000 board. Designed for Thorcom by
6 * Simtec Electronics, http://www.simtec.co.uk/
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
11 *
12*/
13
14#include <linux/kernel.h>
15#include <linux/types.h>
16#include <linux/interrupt.h>
17#include <linux/list.h>
18#include <linux/timer.h>
19#include <linux/init.h>
20#include <linux/gpio.h>
21#include <linux/dm9000.h>
22#include <linux/i2c.h>
23
24#include <linux/serial.h>
25#include <linux/tty.h>
26#include <linux/serial_8250.h>
27#include <linux/serial_reg.h>
28#include <linux/serial_s3c.h>
29#include <linux/io.h>
30
31#include <asm/mach/arch.h>
32#include <asm/mach/map.h>
33#include <asm/mach/irq.h>
34
35#include <asm/irq.h>
36#include <asm/mach-types.h>
37
38#include <linux/platform_data/leds-s3c24xx.h>
39#include <linux/platform_data/i2c-s3c2410.h>
40#include <linux/platform_data/asoc-s3c24xx_simtec.h>
41
42#include <mach/hardware.h>
43#include <mach/regs-gpio.h>
44#include <mach/gpio-samsung.h>
45
46#include <plat/cpu.h>
47#include <plat/devs.h>
48#include <plat/samsung-time.h>
49
50#include "bast.h"
51#include "common.h"
52#include "simtec.h"
53#include "vr1000.h"
54
55/* macros for virtual address mods for the io space entries */
56#define VA_C5(item) ((unsigned long)(item) + BAST_VAM_CS5)
57#define VA_C4(item) ((unsigned long)(item) + BAST_VAM_CS4)
58#define VA_C3(item) ((unsigned long)(item) + BAST_VAM_CS3)
59#define VA_C2(item) ((unsigned long)(item) + BAST_VAM_CS2)
60
61/* macros to modify the physical addresses for io space */
62
63#define PA_CS2(item) (__phys_to_pfn((item) + S3C2410_CS2))
64#define PA_CS3(item) (__phys_to_pfn((item) + S3C2410_CS3))
65#define PA_CS4(item) (__phys_to_pfn((item) + S3C2410_CS4))
66#define PA_CS5(item) (__phys_to_pfn((item) + S3C2410_CS5))
67
68static struct map_desc vr1000_iodesc[] __initdata = {
69  /* ISA IO areas */
70  {
71	  .virtual	= (u32)S3C24XX_VA_ISA_BYTE,
72	  .pfn		= PA_CS2(BAST_PA_ISAIO),
73	  .length	= SZ_16M,
74	  .type		= MT_DEVICE,
75  }, {
76	  .virtual	= (u32)S3C24XX_VA_ISA_WORD,
77	  .pfn		= PA_CS3(BAST_PA_ISAIO),
78	  .length	= SZ_16M,
79	  .type		= MT_DEVICE,
80  },
81
82  /*  CPLD control registers, and external interrupt controls */
83  {
84	  .virtual	= (u32)VR1000_VA_CTRL1,
85	  .pfn		= __phys_to_pfn(VR1000_PA_CTRL1),
86	  .length	= SZ_1M,
87	  .type		= MT_DEVICE,
88  }, {
89	  .virtual	= (u32)VR1000_VA_CTRL2,
90	  .pfn		= __phys_to_pfn(VR1000_PA_CTRL2),
91	  .length	= SZ_1M,
92	  .type		= MT_DEVICE,
93  }, {
94	  .virtual	= (u32)VR1000_VA_CTRL3,
95	  .pfn		= __phys_to_pfn(VR1000_PA_CTRL3),
96	  .length	= SZ_1M,
97	  .type		= MT_DEVICE,
98  }, {
99	  .virtual	= (u32)VR1000_VA_CTRL4,
100	  .pfn		= __phys_to_pfn(VR1000_PA_CTRL4),
101	  .length	= SZ_1M,
102	  .type		= MT_DEVICE,
103  },
104};
105
106#define UCON S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK
107#define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
108#define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
109
110static struct s3c2410_uartcfg vr1000_uartcfgs[] __initdata = {
111	[0] = {
112		.hwport	     = 0,
113		.flags	     = 0,
114		.ucon	     = UCON,
115		.ulcon	     = ULCON,
116		.ufcon	     = UFCON,
117	},
118	[1] = {
119		.hwport	     = 1,
120		.flags	     = 0,
121		.ucon	     = UCON,
122		.ulcon	     = ULCON,
123		.ufcon	     = UFCON,
124	},
125	/* port 2 is not actually used */
126	[2] = {
127		.hwport	     = 2,
128		.flags	     = 0,
129		.ucon	     = UCON,
130		.ulcon	     = ULCON,
131		.ufcon	     = UFCON,
132	}
133};
134
135/* definitions for the vr1000 extra 16550 serial ports */
136
137#define VR1000_BAUDBASE (3692307)
138
139#define VR1000_SERIAL_MAPBASE(x) (VR1000_PA_SERIAL + 0x80 + ((x) << 5))
140
141static struct plat_serial8250_port serial_platform_data[] = {
142	[0] = {
143		.mapbase	= VR1000_SERIAL_MAPBASE(0),
144		.irq		= VR1000_IRQ_SERIAL + 0,
145		.flags		= UPF_BOOT_AUTOCONF | UPF_IOREMAP,
146		.iotype		= UPIO_MEM,
147		.regshift	= 0,
148		.uartclk	= VR1000_BAUDBASE,
149	},
150	[1] = {
151		.mapbase	= VR1000_SERIAL_MAPBASE(1),
152		.irq		= VR1000_IRQ_SERIAL + 1,
153		.flags		= UPF_BOOT_AUTOCONF | UPF_IOREMAP,
154		.iotype		= UPIO_MEM,
155		.regshift	= 0,
156		.uartclk	= VR1000_BAUDBASE,
157	},
158	[2] = {
159		.mapbase	= VR1000_SERIAL_MAPBASE(2),
160		.irq		= VR1000_IRQ_SERIAL + 2,
161		.flags		= UPF_BOOT_AUTOCONF | UPF_IOREMAP,
162		.iotype		= UPIO_MEM,
163		.regshift	= 0,
164		.uartclk	= VR1000_BAUDBASE,
165	},
166	[3] = {
167		.mapbase	= VR1000_SERIAL_MAPBASE(3),
168		.irq		= VR1000_IRQ_SERIAL + 3,
169		.flags		= UPF_BOOT_AUTOCONF | UPF_IOREMAP,
170		.iotype		= UPIO_MEM,
171		.regshift	= 0,
172		.uartclk	= VR1000_BAUDBASE,
173	},
174	{ },
175};
176
177static struct platform_device serial_device = {
178	.name			= "serial8250",
179	.id			= PLAT8250_DEV_PLATFORM,
180	.dev			= {
181		.platform_data	= serial_platform_data,
182	},
183};
184
185/* DM9000 ethernet devices */
186
187static struct resource vr1000_dm9k0_resource[] = {
188	[0] = DEFINE_RES_MEM(S3C2410_CS5 + VR1000_PA_DM9000, 4),
189	[1] = DEFINE_RES_MEM(S3C2410_CS5 + VR1000_PA_DM9000 + 0x40, 0x40),
190	[2] = DEFINE_RES_NAMED(VR1000_IRQ_DM9000A, 1, NULL, IORESOURCE_IRQ \
191						| IORESOURCE_IRQ_HIGHLEVEL),
192};
193
194static struct resource vr1000_dm9k1_resource[] = {
195	[0] = DEFINE_RES_MEM(S3C2410_CS5 + VR1000_PA_DM9000 + 0x80, 4),
196	[1] = DEFINE_RES_MEM(S3C2410_CS5 + VR1000_PA_DM9000 + 0xC0, 0x40),
197	[2] = DEFINE_RES_NAMED(VR1000_IRQ_DM9000N, 1, NULL, IORESOURCE_IRQ \
198						| IORESOURCE_IRQ_HIGHLEVEL),
199};
200
201/* for the moment we limit ourselves to 16bit IO until some
202 * better IO routines can be written and tested
203*/
204
205static struct dm9000_plat_data vr1000_dm9k_platdata = {
206	.flags		= DM9000_PLATF_16BITONLY,
207};
208
209static struct platform_device vr1000_dm9k0 = {
210	.name		= "dm9000",
211	.id		= 0,
212	.num_resources	= ARRAY_SIZE(vr1000_dm9k0_resource),
213	.resource	= vr1000_dm9k0_resource,
214	.dev		= {
215		.platform_data = &vr1000_dm9k_platdata,
216	}
217};
218
219static struct platform_device vr1000_dm9k1 = {
220	.name		= "dm9000",
221	.id		= 1,
222	.num_resources	= ARRAY_SIZE(vr1000_dm9k1_resource),
223	.resource	= vr1000_dm9k1_resource,
224	.dev		= {
225		.platform_data = &vr1000_dm9k_platdata,
226	}
227};
228
229/* LEDS */
230
231static struct s3c24xx_led_platdata vr1000_led1_pdata = {
232	.name		= "led1",
233	.gpio		= S3C2410_GPB(0),
234	.def_trigger	= "",
235};
236
237static struct s3c24xx_led_platdata vr1000_led2_pdata = {
238	.name		= "led2",
239	.gpio		= S3C2410_GPB(1),
240	.def_trigger	= "",
241};
242
243static struct s3c24xx_led_platdata vr1000_led3_pdata = {
244	.name		= "led3",
245	.gpio		= S3C2410_GPB(2),
246	.def_trigger	= "",
247};
248
249static struct platform_device vr1000_led1 = {
250	.name		= "s3c24xx_led",
251	.id		= 1,
252	.dev		= {
253		.platform_data	= &vr1000_led1_pdata,
254	},
255};
256
257static struct platform_device vr1000_led2 = {
258	.name		= "s3c24xx_led",
259	.id		= 2,
260	.dev		= {
261		.platform_data	= &vr1000_led2_pdata,
262	},
263};
264
265static struct platform_device vr1000_led3 = {
266	.name		= "s3c24xx_led",
267	.id		= 3,
268	.dev		= {
269		.platform_data	= &vr1000_led3_pdata,
270	},
271};
272
273/* I2C devices. */
274
275static struct i2c_board_info vr1000_i2c_devs[] __initdata = {
276	{
277		I2C_BOARD_INFO("tlv320aic23", 0x1a),
278	}, {
279		I2C_BOARD_INFO("tmp101", 0x48),
280	}, {
281		I2C_BOARD_INFO("m41st87", 0x68),
282	},
283};
284
285/* devices for this board */
286
287static struct platform_device *vr1000_devices[] __initdata = {
288	&s3c2410_device_dclk,
289	&s3c_device_ohci,
290	&s3c_device_lcd,
291	&s3c_device_wdt,
292	&s3c_device_i2c0,
293	&s3c_device_adc,
294	&serial_device,
295	&vr1000_dm9k0,
296	&vr1000_dm9k1,
297	&vr1000_led1,
298	&vr1000_led2,
299	&vr1000_led3,
300};
301
302static void vr1000_power_off(void)
303{
304	gpio_direction_output(S3C2410_GPB(9), 1);
305}
306
307static void __init vr1000_map_io(void)
308{
309	pm_power_off = vr1000_power_off;
310
311	s3c24xx_init_io(vr1000_iodesc, ARRAY_SIZE(vr1000_iodesc));
312	s3c24xx_init_uarts(vr1000_uartcfgs, ARRAY_SIZE(vr1000_uartcfgs));
313	samsung_set_timer_source(SAMSUNG_PWM3, SAMSUNG_PWM4);
314}
315
316static void __init vr1000_init_time(void)
317{
318	s3c2410_init_clocks(12000000);
319	samsung_timer_init();
320}
321
322static void __init vr1000_init(void)
323{
324	s3c_i2c0_set_platdata(NULL);
325	platform_add_devices(vr1000_devices, ARRAY_SIZE(vr1000_devices));
326
327	i2c_register_board_info(0, vr1000_i2c_devs,
328				ARRAY_SIZE(vr1000_i2c_devs));
329
330	nor_simtec_init();
331	simtec_audio_add(NULL, true, NULL);
332
333	WARN_ON(gpio_request(S3C2410_GPB(9), "power off"));
334}
335
336MACHINE_START(VR1000, "Thorcom-VR1000")
337	/* Maintainer: Ben Dooks <ben@simtec.co.uk> */
338	.atag_offset	= 0x100,
339	.map_io		= vr1000_map_io,
340	.init_machine	= vr1000_init,
341	.init_irq	= s3c2410_init_irq,
342	.init_time	= vr1000_init_time,
343MACHINE_END
344