ec42d1e4e465b5ef6b61d9089924b41de501b6ca
[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
49 #include "bast.h"
50 #include "common.h"
51 #include "simtec.h"
52 #include "vr1000.h"
53
54 /* macros for virtual address mods for the io space entries */
55 #define VA_C5(item) ((unsigned long)(item) + BAST_VAM_CS5)
56 #define VA_C4(item) ((unsigned long)(item) + BAST_VAM_CS4)
57 #define VA_C3(item) ((unsigned long)(item) + BAST_VAM_CS3)
58 #define VA_C2(item) ((unsigned long)(item) + BAST_VAM_CS2)
59
60 /* macros to modify the physical addresses for io space */
61
62 #define PA_CS2(item) (__phys_to_pfn((item) + S3C2410_CS2))
63 #define PA_CS3(item) (__phys_to_pfn((item) + S3C2410_CS3))
64 #define PA_CS4(item) (__phys_to_pfn((item) + S3C2410_CS4))
65 #define PA_CS5(item) (__phys_to_pfn((item) + S3C2410_CS5))
66
67 static struct map_desc vr1000_iodesc[] __initdata = {
68   /* ISA IO areas */
69   {
70           .virtual      = (u32)S3C24XX_VA_ISA_BYTE,
71           .pfn          = PA_CS2(BAST_PA_ISAIO),
72           .length       = SZ_16M,
73           .type         = MT_DEVICE,
74   }, {
75           .virtual      = (u32)S3C24XX_VA_ISA_WORD,
76           .pfn          = PA_CS3(BAST_PA_ISAIO),
77           .length       = SZ_16M,
78           .type         = MT_DEVICE,
79   },
80
81   /*  CPLD control registers, and external interrupt controls */
82   {
83           .virtual      = (u32)VR1000_VA_CTRL1,
84           .pfn          = __phys_to_pfn(VR1000_PA_CTRL1),
85           .length       = SZ_1M,
86           .type         = MT_DEVICE,
87   }, {
88           .virtual      = (u32)VR1000_VA_CTRL2,
89           .pfn          = __phys_to_pfn(VR1000_PA_CTRL2),
90           .length       = SZ_1M,
91           .type         = MT_DEVICE,
92   }, {
93           .virtual      = (u32)VR1000_VA_CTRL3,
94           .pfn          = __phys_to_pfn(VR1000_PA_CTRL3),
95           .length       = SZ_1M,
96           .type         = MT_DEVICE,
97   }, {
98           .virtual      = (u32)VR1000_VA_CTRL4,
99           .pfn          = __phys_to_pfn(VR1000_PA_CTRL4),
100           .length       = SZ_1M,
101           .type         = MT_DEVICE,
102   },
103 };
104
105 #define UCON S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK
106 #define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
107 #define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
108
109 static struct s3c2410_uartcfg vr1000_uartcfgs[] __initdata = {
110         [0] = {
111                 .hwport      = 0,
112                 .flags       = 0,
113                 .ucon        = UCON,
114                 .ulcon       = ULCON,
115                 .ufcon       = UFCON,
116         },
117         [1] = {
118                 .hwport      = 1,
119                 .flags       = 0,
120                 .ucon        = UCON,
121                 .ulcon       = ULCON,
122                 .ufcon       = UFCON,
123         },
124         /* port 2 is not actually used */
125         [2] = {
126                 .hwport      = 2,
127                 .flags       = 0,
128                 .ucon        = UCON,
129                 .ulcon       = ULCON,
130                 .ufcon       = UFCON,
131         }
132 };
133
134 /* definitions for the vr1000 extra 16550 serial ports */
135
136 #define VR1000_BAUDBASE (3692307)
137
138 #define VR1000_SERIAL_MAPBASE(x) (VR1000_PA_SERIAL + 0x80 + ((x) << 5))
139
140 static struct plat_serial8250_port serial_platform_data[] = {
141         [0] = {
142                 .mapbase        = VR1000_SERIAL_MAPBASE(0),
143                 .irq            = VR1000_IRQ_SERIAL + 0,
144                 .flags          = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
145                 .iotype         = UPIO_MEM,
146                 .regshift       = 0,
147                 .uartclk        = VR1000_BAUDBASE,
148         },
149         [1] = {
150                 .mapbase        = VR1000_SERIAL_MAPBASE(1),
151                 .irq            = VR1000_IRQ_SERIAL + 1,
152                 .flags          = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
153                 .iotype         = UPIO_MEM,
154                 .regshift       = 0,
155                 .uartclk        = VR1000_BAUDBASE,
156         },
157         [2] = {
158                 .mapbase        = VR1000_SERIAL_MAPBASE(2),
159                 .irq            = VR1000_IRQ_SERIAL + 2,
160                 .flags          = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
161                 .iotype         = UPIO_MEM,
162                 .regshift       = 0,
163                 .uartclk        = VR1000_BAUDBASE,
164         },
165         [3] = {
166                 .mapbase        = VR1000_SERIAL_MAPBASE(3),
167                 .irq            = VR1000_IRQ_SERIAL + 3,
168                 .flags          = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
169                 .iotype         = UPIO_MEM,
170                 .regshift       = 0,
171                 .uartclk        = VR1000_BAUDBASE,
172         },
173         { },
174 };
175
176 static struct platform_device serial_device = {
177         .name                   = "serial8250",
178         .id                     = PLAT8250_DEV_PLATFORM,
179         .dev                    = {
180                 .platform_data  = serial_platform_data,
181         },
182 };
183
184 /* DM9000 ethernet devices */
185
186 static struct resource vr1000_dm9k0_resource[] = {
187         [0] = DEFINE_RES_MEM(S3C2410_CS5 + VR1000_PA_DM9000, 4),
188         [1] = DEFINE_RES_MEM(S3C2410_CS5 + VR1000_PA_DM9000 + 0x40, 0x40),
189         [2] = DEFINE_RES_NAMED(VR1000_IRQ_DM9000A, 1, NULL, IORESOURCE_IRQ \
190                                                 | IORESOURCE_IRQ_HIGHLEVEL),
191 };
192
193 static struct resource vr1000_dm9k1_resource[] = {
194         [0] = DEFINE_RES_MEM(S3C2410_CS5 + VR1000_PA_DM9000 + 0x80, 4),
195         [1] = DEFINE_RES_MEM(S3C2410_CS5 + VR1000_PA_DM9000 + 0xC0, 0x40),
196         [2] = DEFINE_RES_NAMED(VR1000_IRQ_DM9000N, 1, NULL, IORESOURCE_IRQ \
197                                                 | IORESOURCE_IRQ_HIGHLEVEL),
198 };
199
200 /* for the moment we limit ourselves to 16bit IO until some
201  * better IO routines can be written and tested
202 */
203
204 static struct dm9000_plat_data vr1000_dm9k_platdata = {
205         .flags          = DM9000_PLATF_16BITONLY,
206 };
207
208 static struct platform_device vr1000_dm9k0 = {
209         .name           = "dm9000",
210         .id             = 0,
211         .num_resources  = ARRAY_SIZE(vr1000_dm9k0_resource),
212         .resource       = vr1000_dm9k0_resource,
213         .dev            = {
214                 .platform_data = &vr1000_dm9k_platdata,
215         }
216 };
217
218 static struct platform_device vr1000_dm9k1 = {
219         .name           = "dm9000",
220         .id             = 1,
221         .num_resources  = ARRAY_SIZE(vr1000_dm9k1_resource),
222         .resource       = vr1000_dm9k1_resource,
223         .dev            = {
224                 .platform_data = &vr1000_dm9k_platdata,
225         }
226 };
227
228 /* LEDS */
229
230 static struct s3c24xx_led_platdata vr1000_led1_pdata = {
231         .name           = "led1",
232         .gpio           = S3C2410_GPB(0),
233         .def_trigger    = "",
234 };
235
236 static struct s3c24xx_led_platdata vr1000_led2_pdata = {
237         .name           = "led2",
238         .gpio           = S3C2410_GPB(1),
239         .def_trigger    = "",
240 };
241
242 static struct s3c24xx_led_platdata vr1000_led3_pdata = {
243         .name           = "led3",
244         .gpio           = S3C2410_GPB(2),
245         .def_trigger    = "",
246 };
247
248 static struct platform_device vr1000_led1 = {
249         .name           = "s3c24xx_led",
250         .id             = 1,
251         .dev            = {
252                 .platform_data  = &vr1000_led1_pdata,
253         },
254 };
255
256 static struct platform_device vr1000_led2 = {
257         .name           = "s3c24xx_led",
258         .id             = 2,
259         .dev            = {
260                 .platform_data  = &vr1000_led2_pdata,
261         },
262 };
263
264 static struct platform_device vr1000_led3 = {
265         .name           = "s3c24xx_led",
266         .id             = 3,
267         .dev            = {
268                 .platform_data  = &vr1000_led3_pdata,
269         },
270 };
271
272 /* I2C devices. */
273
274 static struct i2c_board_info vr1000_i2c_devs[] __initdata = {
275         {
276                 I2C_BOARD_INFO("tlv320aic23", 0x1a),
277         }, {
278                 I2C_BOARD_INFO("tmp101", 0x48),
279         }, {
280                 I2C_BOARD_INFO("m41st87", 0x68),
281         },
282 };
283
284 /* devices for this board */
285
286 static struct platform_device *vr1000_devices[] __initdata = {
287         &s3c_device_ohci,
288         &s3c_device_lcd,
289         &s3c_device_wdt,
290         &s3c_device_i2c0,
291         &s3c_device_adc,
292         &serial_device,
293         &vr1000_dm9k0,
294         &vr1000_dm9k1,
295         &vr1000_led1,
296         &vr1000_led2,
297         &vr1000_led3,
298 };
299
300 static struct clk *vr1000_clocks[] __initdata = {
301         &s3c24xx_dclk0,
302         &s3c24xx_dclk1,
303         &s3c24xx_clkout0,
304         &s3c24xx_clkout1,
305         &s3c24xx_uclk,
306 };
307
308 static void vr1000_power_off(void)
309 {
310         gpio_direction_output(S3C2410_GPB(9), 1);
311 }
312
313 static void __init vr1000_map_io(void)
314 {
315         /* initialise clock sources */
316
317         s3c24xx_dclk0.parent = &clk_upll;
318         s3c24xx_dclk0.rate   = 12*1000*1000;
319
320         s3c24xx_dclk1.parent = NULL;
321         s3c24xx_dclk1.rate   = 3692307;
322
323         s3c24xx_clkout0.parent  = &s3c24xx_dclk0;
324         s3c24xx_clkout1.parent  = &s3c24xx_dclk1;
325
326         s3c24xx_uclk.parent  = &s3c24xx_clkout1;
327
328         s3c24xx_register_clocks(vr1000_clocks, ARRAY_SIZE(vr1000_clocks));
329
330         pm_power_off = vr1000_power_off;
331
332         s3c24xx_init_io(vr1000_iodesc, ARRAY_SIZE(vr1000_iodesc));
333         s3c24xx_init_clocks(0);
334         s3c24xx_init_uarts(vr1000_uartcfgs, ARRAY_SIZE(vr1000_uartcfgs));
335 }
336
337 static void __init vr1000_init(void)
338 {
339         s3c_i2c0_set_platdata(NULL);
340         platform_add_devices(vr1000_devices, ARRAY_SIZE(vr1000_devices));
341
342         i2c_register_board_info(0, vr1000_i2c_devs,
343                                 ARRAY_SIZE(vr1000_i2c_devs));
344
345         nor_simtec_init();
346         simtec_audio_add(NULL, true, NULL);
347
348         WARN_ON(gpio_request(S3C2410_GPB(9), "power off"));
349 }
350
351 MACHINE_START(VR1000, "Thorcom-VR1000")
352         /* Maintainer: Ben Dooks <ben@simtec.co.uk> */
353         .atag_offset    = 0x100,
354         .map_io         = vr1000_map_io,
355         .init_machine   = vr1000_init,
356         .init_irq       = s3c24xx_init_irq,
357         .init_time      = s3c24xx_timer_init,
358         .restart        = s3c2410_restart,
359 MACHINE_END