deeb8a0a4034ba373b1143e781f82584e3b250d7
[sfrench/cifs-2.6.git] / arch / arm / mach-s3c24xx / mach-vr1000.c
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/io.h>
29
30 #include <asm/mach/arch.h>
31 #include <asm/mach/map.h>
32 #include <asm/mach/irq.h>
33
34 #include <asm/irq.h>
35 #include <asm/mach-types.h>
36
37 #include <linux/platform_data/leds-s3c24xx.h>
38 #include <linux/platform_data/i2c-s3c2410.h>
39 #include <linux/platform_data/asoc-s3c24xx_simtec.h>
40
41 #include <mach/hardware.h>
42 #include <mach/regs-gpio.h>
43
44 #include <plat/clock.h>
45 #include <plat/cpu.h>
46 #include <plat/devs.h>
47 #include <plat/regs-serial.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
68 static 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
110 static 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
141 static 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
177 static 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
187 static 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
194 static 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
205 static struct dm9000_plat_data vr1000_dm9k_platdata = {
206         .flags          = DM9000_PLATF_16BITONLY,
207 };
208
209 static 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
219 static 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
231 static struct s3c24xx_led_platdata vr1000_led1_pdata = {
232         .name           = "led1",
233         .gpio           = S3C2410_GPB(0),
234         .def_trigger    = "",
235 };
236
237 static struct s3c24xx_led_platdata vr1000_led2_pdata = {
238         .name           = "led2",
239         .gpio           = S3C2410_GPB(1),
240         .def_trigger    = "",
241 };
242
243 static struct s3c24xx_led_platdata vr1000_led3_pdata = {
244         .name           = "led3",
245         .gpio           = S3C2410_GPB(2),
246         .def_trigger    = "",
247 };
248
249 static struct platform_device vr1000_led1 = {
250         .name           = "s3c24xx_led",
251         .id             = 1,
252         .dev            = {
253                 .platform_data  = &vr1000_led1_pdata,
254         },
255 };
256
257 static struct platform_device vr1000_led2 = {
258         .name           = "s3c24xx_led",
259         .id             = 2,
260         .dev            = {
261                 .platform_data  = &vr1000_led2_pdata,
262         },
263 };
264
265 static 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
275 static 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
287 static struct platform_device *vr1000_devices[] __initdata = {
288         &s3c_device_ohci,
289         &s3c_device_lcd,
290         &s3c_device_wdt,
291         &s3c_device_i2c0,
292         &s3c_device_adc,
293         &serial_device,
294         &vr1000_dm9k0,
295         &vr1000_dm9k1,
296         &vr1000_led1,
297         &vr1000_led2,
298         &vr1000_led3,
299 };
300
301 static struct clk *vr1000_clocks[] __initdata = {
302         &s3c24xx_dclk0,
303         &s3c24xx_dclk1,
304         &s3c24xx_clkout0,
305         &s3c24xx_clkout1,
306         &s3c24xx_uclk,
307 };
308
309 static void vr1000_power_off(void)
310 {
311         gpio_direction_output(S3C2410_GPB(9), 1);
312 }
313
314 static void __init vr1000_map_io(void)
315 {
316         /* initialise clock sources */
317
318         s3c24xx_dclk0.parent = &clk_upll;
319         s3c24xx_dclk0.rate   = 12*1000*1000;
320
321         s3c24xx_dclk1.parent = NULL;
322         s3c24xx_dclk1.rate   = 3692307;
323
324         s3c24xx_clkout0.parent  = &s3c24xx_dclk0;
325         s3c24xx_clkout1.parent  = &s3c24xx_dclk1;
326
327         s3c24xx_uclk.parent  = &s3c24xx_clkout1;
328
329         s3c24xx_register_clocks(vr1000_clocks, ARRAY_SIZE(vr1000_clocks));
330
331         pm_power_off = vr1000_power_off;
332
333         s3c24xx_init_io(vr1000_iodesc, ARRAY_SIZE(vr1000_iodesc));
334         s3c24xx_init_clocks(0);
335         s3c24xx_init_uarts(vr1000_uartcfgs, ARRAY_SIZE(vr1000_uartcfgs));
336         samsung_set_timer_source(SAMSUNG_PWM3, SAMSUNG_PWM4);
337 }
338
339 static void __init vr1000_init(void)
340 {
341         s3c_i2c0_set_platdata(NULL);
342         platform_add_devices(vr1000_devices, ARRAY_SIZE(vr1000_devices));
343
344         i2c_register_board_info(0, vr1000_i2c_devs,
345                                 ARRAY_SIZE(vr1000_i2c_devs));
346
347         nor_simtec_init();
348         simtec_audio_add(NULL, true, NULL);
349
350         WARN_ON(gpio_request(S3C2410_GPB(9), "power off"));
351 }
352
353 MACHINE_START(VR1000, "Thorcom-VR1000")
354         /* Maintainer: Ben Dooks <ben@simtec.co.uk> */
355         .atag_offset    = 0x100,
356         .map_io         = vr1000_map_io,
357         .init_machine   = vr1000_init,
358         .init_irq       = s3c24xx_init_irq,
359         .init_time      = samsung_timer_init,
360         .restart        = s3c2410_restart,
361 MACHINE_END