1 // SPDX-License-Identifier: GPL-2.0
2 //
3 // Copyright (c) 2003-2008 Simtec Electronics
4 // Ben Dooks <ben@simtec.co.uk>
5 //
6 // Machine support for Thorcom VR1000 board. Designed for Thorcom by
7 // Simtec Electronics, http://www.simtec.co.uk/
8
9 #include <linux/kernel.h>
10 #include <linux/types.h>
11 #include <linux/interrupt.h>
12 #include <linux/list.h>
13 #include <linux/timer.h>
14 #include <linux/init.h>
15 #include <linux/gpio.h>
16 #include <linux/gpio/machine.h>
17 #include <linux/dm9000.h>
18 #include <linux/i2c.h>
19
20 #include <linux/serial.h>
21 #include <linux/tty.h>
22 #include <linux/serial_8250.h>
23 #include <linux/serial_reg.h>
24 #include <linux/serial_s3c.h>
25 #include <linux/io.h>
26
27 #include <asm/mach/arch.h>
28 #include <asm/mach/map.h>
29 #include <asm/mach/irq.h>
30
31 #include <asm/irq.h>
32 #include <asm/mach-types.h>
33
34 #include <linux/platform_data/leds-s3c24xx.h>
35 #include <linux/platform_data/i2c-s3c2410.h>
36 #include <linux/platform_data/asoc-s3c24xx_simtec.h>
37
38 #include "regs-gpio.h"
39 #include "gpio-samsung.h"
40 #include "gpio-cfg.h"
41
42 #include "cpu.h"
43 #include "devs.h"
44
45 #include "bast.h"
46 #include "s3c24xx.h"
47 #include "simtec.h"
48 #include "vr1000.h"
49
50 /* macros for virtual address mods for the io space entries */
51 #define VA_C5(item) ((unsigned long)(item) + BAST_VAM_CS5)
52 #define VA_C4(item) ((unsigned long)(item) + BAST_VAM_CS4)
53 #define VA_C3(item) ((unsigned long)(item) + BAST_VAM_CS3)
54 #define VA_C2(item) ((unsigned long)(item) + BAST_VAM_CS2)
55
56 /* macros to modify the physical addresses for io space */
57
58 #define PA_CS2(item) (__phys_to_pfn((item) + S3C2410_CS2))
59 #define PA_CS3(item) (__phys_to_pfn((item) + S3C2410_CS3))
60 #define PA_CS4(item) (__phys_to_pfn((item) + S3C2410_CS4))
61 #define PA_CS5(item) (__phys_to_pfn((item) + S3C2410_CS5))
62
63 static struct map_desc vr1000_iodesc[] __initdata = {
64 /* ISA IO areas */
65 {
66 .virtual = (u32)S3C24XX_VA_ISA_BYTE,
67 .pfn = PA_CS2(BAST_PA_ISAIO),
68 .length = SZ_16M,
69 .type = MT_DEVICE,
70 }, {
71 .virtual = (u32)S3C24XX_VA_ISA_WORD,
72 .pfn = PA_CS3(BAST_PA_ISAIO),
73 .length = SZ_16M,
74 .type = MT_DEVICE,
75 },
76
77 /* CPLD control registers, and external interrupt controls */
78 {
79 .virtual = (u32)VR1000_VA_CTRL1,
80 .pfn = __phys_to_pfn(VR1000_PA_CTRL1),
81 .length = SZ_1M,
82 .type = MT_DEVICE,
83 }, {
84 .virtual = (u32)VR1000_VA_CTRL2,
85 .pfn = __phys_to_pfn(VR1000_PA_CTRL2),
86 .length = SZ_1M,
87 .type = MT_DEVICE,
88 }, {
89 .virtual = (u32)VR1000_VA_CTRL3,
90 .pfn = __phys_to_pfn(VR1000_PA_CTRL3),
91 .length = SZ_1M,
92 .type = MT_DEVICE,
93 }, {
94 .virtual = (u32)VR1000_VA_CTRL4,
95 .pfn = __phys_to_pfn(VR1000_PA_CTRL4),
96 .length = SZ_1M,
97 .type = MT_DEVICE,
98 },
99 };
100
101 #define UCON S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK
102 #define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
103 #define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
104
105 static struct s3c2410_uartcfg vr1000_uartcfgs[] __initdata = {
106 [0] = {
107 .hwport = 0,
108 .flags = 0,
109 .ucon = UCON,
110 .ulcon = ULCON,
111 .ufcon = UFCON,
112 },
113 [1] = {
114 .hwport = 1,
115 .flags = 0,
116 .ucon = UCON,
117 .ulcon = ULCON,
118 .ufcon = UFCON,
119 },
120 /* port 2 is not actually used */
121 [2] = {
122 .hwport = 2,
123 .flags = 0,
124 .ucon = UCON,
125 .ulcon = ULCON,
126 .ufcon = UFCON,
127 }
128 };
129
130 /* definitions for the vr1000 extra 16550 serial ports */
131
132 #define VR1000_BAUDBASE (3692307)
133
134 #define VR1000_SERIAL_MAPBASE(x) (VR1000_PA_SERIAL + 0x80 + ((x) << 5))
135
136 static struct plat_serial8250_port serial_platform_data[] = {
137 [0] = {
138 .mapbase = VR1000_SERIAL_MAPBASE(0),
139 .irq = VR1000_IRQ_SERIAL + 0,
140 .flags = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
141 .iotype = UPIO_MEM,
142 .regshift = 0,
143 .uartclk = VR1000_BAUDBASE,
144 },
145 [1] = {
146 .mapbase = VR1000_SERIAL_MAPBASE(1),
147 .irq = VR1000_IRQ_SERIAL + 1,
148 .flags = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
149 .iotype = UPIO_MEM,
150 .regshift = 0,
151 .uartclk = VR1000_BAUDBASE,
152 },
153 [2] = {
154 .mapbase = VR1000_SERIAL_MAPBASE(2),
155 .irq = VR1000_IRQ_SERIAL + 2,
156 .flags = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
157 .iotype = UPIO_MEM,
158 .regshift = 0,
159 .uartclk = VR1000_BAUDBASE,
160 },
161 [3] = {
162 .mapbase = VR1000_SERIAL_MAPBASE(3),
163 .irq = VR1000_IRQ_SERIAL + 3,
164 .flags = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
165 .iotype = UPIO_MEM,
166 .regshift = 0,
167 .uartclk = VR1000_BAUDBASE,
168 },
169 { },
170 };
171
172 static struct platform_device serial_device = {
173 .name = "serial8250",
174 .id = PLAT8250_DEV_PLATFORM,
175 .dev = {
176 .platform_data = serial_platform_data,
177 },
178 };
179
180 /* DM9000 ethernet devices */
181
182 static struct resource vr1000_dm9k0_resource[] = {
183 [0] = DEFINE_RES_MEM(S3C2410_CS5 + VR1000_PA_DM9000, 4),
184 [1] = DEFINE_RES_MEM(S3C2410_CS5 + VR1000_PA_DM9000 + 0x40, 0x40),
185 [2] = DEFINE_RES_NAMED(VR1000_IRQ_DM9000A, 1, NULL, IORESOURCE_IRQ \
186 | IORESOURCE_IRQ_HIGHLEVEL),
187 };
188
189 static struct resource vr1000_dm9k1_resource[] = {
190 [0] = DEFINE_RES_MEM(S3C2410_CS5 + VR1000_PA_DM9000 + 0x80, 4),
191 [1] = DEFINE_RES_MEM(S3C2410_CS5 + VR1000_PA_DM9000 + 0xC0, 0x40),
192 [2] = DEFINE_RES_NAMED(VR1000_IRQ_DM9000N, 1, NULL, IORESOURCE_IRQ \
193 | IORESOURCE_IRQ_HIGHLEVEL),
194 };
195
196 /* for the moment we limit ourselves to 16bit IO until some
197 * better IO routines can be written and tested
198 */
199
200 static struct dm9000_plat_data vr1000_dm9k_platdata = {
201 .flags = DM9000_PLATF_16BITONLY,
202 };
203
204 static struct platform_device vr1000_dm9k0 = {
205 .name = "dm9000",
206 .id = 0,
207 .num_resources = ARRAY_SIZE(vr1000_dm9k0_resource),
208 .resource = vr1000_dm9k0_resource,
209 .dev = {
210 .platform_data = &vr1000_dm9k_platdata,
211 }
212 };
213
214 static struct platform_device vr1000_dm9k1 = {
215 .name = "dm9000",
216 .id = 1,
217 .num_resources = ARRAY_SIZE(vr1000_dm9k1_resource),
218 .resource = vr1000_dm9k1_resource,
219 .dev = {
220 .platform_data = &vr1000_dm9k_platdata,
221 }
222 };
223
224 /* LEDS */
225
226 static struct gpiod_lookup_table vr1000_led1_gpio_table = {
227 .dev_id = "s3c24xx_led.1",
228 .table = {
229 GPIO_LOOKUP("GPB", 0, NULL, GPIO_ACTIVE_HIGH),
230 { },
231 },
232 };
233
234 static struct gpiod_lookup_table vr1000_led2_gpio_table = {
235 .dev_id = "s3c24xx_led.2",
236 .table = {
237 GPIO_LOOKUP("GPB", 1, NULL, GPIO_ACTIVE_HIGH),
238 { },
239 },
240 };
241
242 static struct gpiod_lookup_table vr1000_led3_gpio_table = {
243 .dev_id = "s3c24xx_led.3",
244 .table = {
245 GPIO_LOOKUP("GPB", 2, NULL, GPIO_ACTIVE_HIGH),
246 { },
247 },
248 };
249
250 static struct s3c24xx_led_platdata vr1000_led1_pdata = {
251 .name = "led1",
252 .def_trigger = "",
253 };
254
255 static struct s3c24xx_led_platdata vr1000_led2_pdata = {
256 .name = "led2",
257 .def_trigger = "",
258 };
259
260 static struct s3c24xx_led_platdata vr1000_led3_pdata = {
261 .name = "led3",
262 .def_trigger = "",
263 };
264
265 static struct platform_device vr1000_led1 = {
266 .name = "s3c24xx_led",
267 .id = 1,
268 .dev = {
269 .platform_data = &vr1000_led1_pdata,
270 },
271 };
272
273 static struct platform_device vr1000_led2 = {
274 .name = "s3c24xx_led",
275 .id = 2,
276 .dev = {
277 .platform_data = &vr1000_led2_pdata,
278 },
279 };
280
281 static struct platform_device vr1000_led3 = {
282 .name = "s3c24xx_led",
283 .id = 3,
284 .dev = {
285 .platform_data = &vr1000_led3_pdata,
286 },
287 };
288
289 /* I2C devices. */
290
291 static struct i2c_board_info vr1000_i2c_devs[] __initdata = {
292 {
293 I2C_BOARD_INFO("tlv320aic23", 0x1a),
294 }, {
295 I2C_BOARD_INFO("tmp101", 0x48),
296 }, {
297 I2C_BOARD_INFO("m41st87", 0x68),
298 },
299 };
300
301 /* devices for this board */
302
303 static struct platform_device *vr1000_devices[] __initdata = {
304 &s3c2410_device_dclk,
305 &s3c_device_ohci,
306 &s3c_device_lcd,
307 &s3c_device_wdt,
308 &s3c_device_i2c0,
309 &s3c_device_adc,
310 &serial_device,
311 &vr1000_dm9k0,
312 &vr1000_dm9k1,
313 &vr1000_led1,
314 &vr1000_led2,
315 &vr1000_led3,
316 };
317
vr1000_power_off(void)318 static void vr1000_power_off(void)
319 {
320 gpio_direction_output(S3C2410_GPB(9), 1);
321 }
322
vr1000_map_io(void)323 static void __init vr1000_map_io(void)
324 {
325 pm_power_off = vr1000_power_off;
326
327 s3c24xx_init_io(vr1000_iodesc, ARRAY_SIZE(vr1000_iodesc));
328 s3c24xx_init_uarts(vr1000_uartcfgs, ARRAY_SIZE(vr1000_uartcfgs));
329 s3c24xx_set_timer_source(S3C24XX_PWM3, S3C24XX_PWM4);
330 }
331
vr1000_init_time(void)332 static void __init vr1000_init_time(void)
333 {
334 s3c2410_init_clocks(12000000);
335 s3c24xx_timer_init();
336 }
337
vr1000_init(void)338 static void __init vr1000_init(void)
339 {
340 s3c_i2c0_set_platdata(NULL);
341
342 /* Disable pull-up on LED lines and register GPIO lookups */
343 s3c_gpio_setpull(S3C2410_GPB(0), S3C_GPIO_PULL_NONE);
344 s3c_gpio_setpull(S3C2410_GPB(1), S3C_GPIO_PULL_NONE);
345 s3c_gpio_setpull(S3C2410_GPB(2), S3C_GPIO_PULL_NONE);
346 gpiod_add_lookup_table(&vr1000_led1_gpio_table);
347 gpiod_add_lookup_table(&vr1000_led2_gpio_table);
348 gpiod_add_lookup_table(&vr1000_led3_gpio_table);
349
350 platform_add_devices(vr1000_devices, ARRAY_SIZE(vr1000_devices));
351
352 i2c_register_board_info(0, vr1000_i2c_devs,
353 ARRAY_SIZE(vr1000_i2c_devs));
354
355 nor_simtec_init();
356 simtec_audio_add(NULL, true, NULL);
357
358 WARN_ON(gpio_request(S3C2410_GPB(9), "power off"));
359 }
360
361 MACHINE_START(VR1000, "Thorcom-VR1000")
362 /* Maintainer: Ben Dooks <ben@simtec.co.uk> */
363 .atag_offset = 0x100,
364 .map_io = vr1000_map_io,
365 .init_machine = vr1000_init,
366 .init_irq = s3c2410_init_irq,
367 .init_time = vr1000_init_time,
368 MACHINE_END
369