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
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 &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
vr1000_power_off(void)302 static void vr1000_power_off(void)
303 {
304 gpio_direction_output(S3C2410_GPB(9), 1);
305 }
306
vr1000_map_io(void)307 static 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
vr1000_init_time(void)316 static void __init vr1000_init_time(void)
317 {
318 s3c2410_init_clocks(12000000);
319 samsung_timer_init();
320 }
321
vr1000_init(void)322 static 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
336 MACHINE_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,
343 MACHINE_END
344