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mach-vr1000.c
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1 /* linux/arch/arm/mach-s3c2410/mach-vr1000.c
2  *
3  * Copyright (c) 2003-2008 Simtec Electronics
4  * Ben Dooks <[email protected]>
5  *
6  * Machine support for Thorcom VR1000 board. Designed for Thorcom by
7  * Simtec Electronics, http://www.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/kernel.h>
16 #include <linux/types.h>
17 #include <linux/interrupt.h>
18 #include <linux/list.h>
19 #include <linux/timer.h>
20 #include <linux/init.h>
21 #include <linux/gpio.h>
22 #include <linux/dm9000.h>
23 #include <linux/i2c.h>
24 
25 #include <linux/serial.h>
26 #include <linux/tty.h>
27 #include <linux/serial_8250.h>
28 #include <linux/serial_reg.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 <mach/bast-map.h>
36 #include <mach/vr1000-map.h>
37 #include <mach/vr1000-irq.h>
38 #include <mach/vr1000-cpld.h>
39 
40 #include <mach/hardware.h>
41 #include <asm/irq.h>
42 #include <asm/mach-types.h>
43 
44 #include <plat/regs-serial.h>
45 #include <mach/regs-gpio.h>
46 #include <linux/platform_data/leds-s3c24xx.h>
47 
48 #include <plat/clock.h>
49 #include <plat/devs.h>
50 #include <plat/cpu.h>
51 #include <linux/platform_data/i2c-s3c2410.h>
52 #include <linux/platform_data/asoc-s3c24xx_simtec.h>
53 
54 #include "simtec.h"
55 #include "common.h"
56 
57 /* macros for virtual address mods for the io space entries */
58 #define VA_C5(item) ((unsigned long)(item) + BAST_VAM_CS5)
59 #define VA_C4(item) ((unsigned long)(item) + BAST_VAM_CS4)
60 #define VA_C3(item) ((unsigned long)(item) + BAST_VAM_CS3)
61 #define VA_C2(item) ((unsigned long)(item) + BAST_VAM_CS2)
62 
63 /* macros to modify the physical addresses for io space */
64 
65 #define PA_CS2(item) (__phys_to_pfn((item) + S3C2410_CS2))
66 #define PA_CS3(item) (__phys_to_pfn((item) + S3C2410_CS3))
67 #define PA_CS4(item) (__phys_to_pfn((item) + S3C2410_CS4))
68 #define PA_CS5(item) (__phys_to_pfn((item) + S3C2410_CS5))
69 
70 static struct map_desc vr1000_iodesc[] __initdata = {
71  /* ISA IO areas */
72  {
73  .virtual = (u32)S3C24XX_VA_ISA_BYTE,
74  .pfn = PA_CS2(BAST_PA_ISAIO),
75  .length = SZ_16M,
76  .type = MT_DEVICE,
77  }, {
78  .virtual = (u32)S3C24XX_VA_ISA_WORD,
79  .pfn = PA_CS3(BAST_PA_ISAIO),
80  .length = SZ_16M,
81  .type = MT_DEVICE,
82  },
83 
84  /* CPLD control registers, and external interrupt controls */
85  {
86  .virtual = (u32)VR1000_VA_CTRL1,
87  .pfn = __phys_to_pfn(VR1000_PA_CTRL1),
88  .length = SZ_1M,
89  .type = MT_DEVICE,
90  }, {
91  .virtual = (u32)VR1000_VA_CTRL2,
92  .pfn = __phys_to_pfn(VR1000_PA_CTRL2),
93  .length = SZ_1M,
94  .type = MT_DEVICE,
95  }, {
96  .virtual = (u32)VR1000_VA_CTRL3,
97  .pfn = __phys_to_pfn(VR1000_PA_CTRL3),
98  .length = SZ_1M,
99  .type = MT_DEVICE,
100  }, {
101  .virtual = (u32)VR1000_VA_CTRL4,
102  .pfn = __phys_to_pfn(VR1000_PA_CTRL4),
103  .length = SZ_1M,
104  .type = MT_DEVICE,
105  },
106 };
107 
108 #define UCON S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK
109 #define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
110 #define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
111 
112 static struct s3c2410_uartcfg vr1000_uartcfgs[] __initdata = {
113  [0] = {
114  .hwport = 0,
115  .flags = 0,
116  .ucon = UCON,
117  .ulcon = ULCON,
118  .ufcon = UFCON,
119  },
120  [1] = {
121  .hwport = 1,
122  .flags = 0,
123  .ucon = UCON,
124  .ulcon = ULCON,
125  .ufcon = UFCON,
126  },
127  /* port 2 is not actually used */
128  [2] = {
129  .hwport = 2,
130  .flags = 0,
131  .ucon = UCON,
132  .ulcon = ULCON,
133  .ufcon = UFCON,
134  }
135 };
136 
137 /* definitions for the vr1000 extra 16550 serial ports */
138 
139 #define VR1000_BAUDBASE (3692307)
140 
141 #define VR1000_SERIAL_MAPBASE(x) (VR1000_PA_SERIAL + 0x80 + ((x) << 5))
142 
143 static struct plat_serial8250_port serial_platform_data[] = {
144  [0] = {
145  .mapbase = VR1000_SERIAL_MAPBASE(0),
146  .irq = IRQ_VR1000_SERIAL + 0,
147  .flags = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
148  .iotype = UPIO_MEM,
149  .regshift = 0,
150  .uartclk = VR1000_BAUDBASE,
151  },
152  [1] = {
153  .mapbase = VR1000_SERIAL_MAPBASE(1),
154  .irq = IRQ_VR1000_SERIAL + 1,
155  .flags = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
156  .iotype = UPIO_MEM,
157  .regshift = 0,
158  .uartclk = VR1000_BAUDBASE,
159  },
160  [2] = {
161  .mapbase = VR1000_SERIAL_MAPBASE(2),
162  .irq = IRQ_VR1000_SERIAL + 2,
163  .flags = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
164  .iotype = UPIO_MEM,
165  .regshift = 0,
166  .uartclk = VR1000_BAUDBASE,
167  },
168  [3] = {
169  .mapbase = VR1000_SERIAL_MAPBASE(3),
170  .irq = IRQ_VR1000_SERIAL + 3,
171  .flags = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
172  .iotype = UPIO_MEM,
173  .regshift = 0,
174  .uartclk = VR1000_BAUDBASE,
175  },
176  { },
177 };
178 
179 static struct platform_device serial_device = {
180  .name = "serial8250",
181  .id = PLAT8250_DEV_PLATFORM,
182  .dev = {
183  .platform_data = serial_platform_data,
184  },
185 };
186 
187 /* DM9000 ethernet devices */
188 
189 static struct resource vr1000_dm9k0_resource[] = {
190  [0] = DEFINE_RES_MEM(S3C2410_CS5 + VR1000_PA_DM9000, 4),
191  [1] = DEFINE_RES_MEM(S3C2410_CS5 + VR1000_PA_DM9000 + 0x40, 0x40),
192  [2] = DEFINE_RES_NAMED(IRQ_VR1000_DM9000A, 1, NULL, IORESOURCE_IRQ \
193  | IORESOURCE_IRQ_HIGHLEVEL),
194 };
195 
196 static struct resource vr1000_dm9k1_resource[] = {
197  [0] = DEFINE_RES_MEM(S3C2410_CS5 + VR1000_PA_DM9000 + 0x80, 4),
198  [1] = DEFINE_RES_MEM(S3C2410_CS5 + VR1000_PA_DM9000 + 0xC0, 0x40),
199  [2] = DEFINE_RES_NAMED(IRQ_VR1000_DM9000N, 1, NULL, IORESOURCE_IRQ \
200  | IORESOURCE_IRQ_HIGHLEVEL),
201 };
202 
203 /* for the moment we limit ourselves to 16bit IO until some
204  * better IO routines can be written and tested
205 */
206 
207 static struct dm9000_plat_data vr1000_dm9k_platdata = {
208  .flags = DM9000_PLATF_16BITONLY,
209 };
210 
211 static struct platform_device vr1000_dm9k0 = {
212  .name = "dm9000",
213  .id = 0,
214  .num_resources = ARRAY_SIZE(vr1000_dm9k0_resource),
215  .resource = vr1000_dm9k0_resource,
216  .dev = {
217  .platform_data = &vr1000_dm9k_platdata,
218  }
219 };
220 
221 static struct platform_device vr1000_dm9k1 = {
222  .name = "dm9000",
223  .id = 1,
224  .num_resources = ARRAY_SIZE(vr1000_dm9k1_resource),
225  .resource = vr1000_dm9k1_resource,
226  .dev = {
227  .platform_data = &vr1000_dm9k_platdata,
228  }
229 };
230 
231 /* LEDS */
232 
233 static struct s3c24xx_led_platdata vr1000_led1_pdata = {
234  .name = "led1",
235  .gpio = S3C2410_GPB(0),
236  .def_trigger = "",
237 };
238 
239 static struct s3c24xx_led_platdata vr1000_led2_pdata = {
240  .name = "led2",
241  .gpio = S3C2410_GPB(1),
242  .def_trigger = "",
243 };
244 
245 static struct s3c24xx_led_platdata vr1000_led3_pdata = {
246  .name = "led3",
247  .gpio = S3C2410_GPB(2),
248  .def_trigger = "",
249 };
250 
251 static struct platform_device vr1000_led1 = {
252  .name = "s3c24xx_led",
253  .id = 1,
254  .dev = {
255  .platform_data = &vr1000_led1_pdata,
256  },
257 };
258 
259 static struct platform_device vr1000_led2 = {
260  .name = "s3c24xx_led",
261  .id = 2,
262  .dev = {
263  .platform_data = &vr1000_led2_pdata,
264  },
265 };
266 
267 static struct platform_device vr1000_led3 = {
268  .name = "s3c24xx_led",
269  .id = 3,
270  .dev = {
271  .platform_data = &vr1000_led3_pdata,
272  },
273 };
274 
275 /* I2C devices. */
276 
277 static struct i2c_board_info vr1000_i2c_devs[] __initdata = {
278  {
279  I2C_BOARD_INFO("tlv320aic23", 0x1a),
280  }, {
281  I2C_BOARD_INFO("tmp101", 0x48),
282  }, {
283  I2C_BOARD_INFO("m41st87", 0x68),
284  },
285 };
286 
287 /* devices for this board */
288 
289 static struct platform_device *vr1000_devices[] __initdata = {
290  &s3c_device_ohci,
291  &s3c_device_lcd,
292  &s3c_device_wdt,
293  &s3c_device_i2c0,
294  &s3c_device_adc,
295  &serial_device,
296  &vr1000_dm9k0,
297  &vr1000_dm9k1,
298  &vr1000_led1,
299  &vr1000_led2,
300  &vr1000_led3,
301 };
302 
303 static struct clk *vr1000_clocks[] __initdata = {
304  &s3c24xx_dclk0,
305  &s3c24xx_dclk1,
306  &s3c24xx_clkout0,
307  &s3c24xx_clkout1,
308  &s3c24xx_uclk,
309 };
310 
311 static void vr1000_power_off(void)
312 {
313  gpio_direction_output(S3C2410_GPB(9), 1);
314 }
315 
316 static void __init vr1000_map_io(void)
317 {
318  /* initialise clock sources */
319 
320  s3c24xx_dclk0.parent = &clk_upll;
321  s3c24xx_dclk0.rate = 12*1000*1000;
322 
323  s3c24xx_dclk1.parent = NULL;
324  s3c24xx_dclk1.rate = 3692307;
325 
326  s3c24xx_clkout0.parent = &s3c24xx_dclk0;
327  s3c24xx_clkout1.parent = &s3c24xx_dclk1;
328 
329  s3c24xx_uclk.parent = &s3c24xx_clkout1;
330 
331  s3c24xx_register_clocks(vr1000_clocks, ARRAY_SIZE(vr1000_clocks));
332 
333  pm_power_off = vr1000_power_off;
334 
335  s3c24xx_init_io(vr1000_iodesc, ARRAY_SIZE(vr1000_iodesc));
336  s3c24xx_init_clocks(0);
337  s3c24xx_init_uarts(vr1000_uartcfgs, ARRAY_SIZE(vr1000_uartcfgs));
338 }
339 
340 static void __init vr1000_init(void)
341 {
342  s3c_i2c0_set_platdata(NULL);
343  platform_add_devices(vr1000_devices, ARRAY_SIZE(vr1000_devices));
344 
345  i2c_register_board_info(0, vr1000_i2c_devs,
346  ARRAY_SIZE(vr1000_i2c_devs));
347 
348  nor_simtec_init();
349  simtec_audio_add(NULL, true, NULL);
350 
351  WARN_ON(gpio_request(S3C2410_GPB(9), "power off"));
352 }
353 
354 MACHINE_START(VR1000, "Thorcom-VR1000")
355  /* Maintainer: Ben Dooks <[email protected]> */
356  .atag_offset = 0x100,
357  .map_io = vr1000_map_io,
358  .init_machine = vr1000_init,
359  .init_irq = s3c24xx_init_irq,
360  .timer = &s3c24xx_timer,
361  .restart = s3c2410_restart,
362 MACHINE_END
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