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
72 /* CPLD control registers, and external interrupt controls */
73 {
74 .virtual = (u32)VR1000_VA_CTRL1,
75 .pfn = __phys_to_pfn(VR1000_PA_CTRL1),
76 .length = SZ_1M,
77 .type = MT_DEVICE,
78 }, {
79 .virtual = (u32)VR1000_VA_CTRL2,
80 .pfn = __phys_to_pfn(VR1000_PA_CTRL2),
81 .length = SZ_1M,
82 .type = MT_DEVICE,
83 }, {
84 .virtual = (u32)VR1000_VA_CTRL3,
85 .pfn = __phys_to_pfn(VR1000_PA_CTRL3),
86 .length = SZ_1M,
87 .type = MT_DEVICE,
88 }, {
89 .virtual = (u32)VR1000_VA_CTRL4,
90 .pfn = __phys_to_pfn(VR1000_PA_CTRL4),
91 .length = SZ_1M,
92 .type = MT_DEVICE,
93 },
94 };
95
96 #define UCON S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK
97 #define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
98 #define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
99
100 static struct s3c2410_uartcfg vr1000_uartcfgs[] __initdata = {
101 [0] = {
102 .hwport = 0,
103 .flags = 0,
104 .ucon = UCON,
105 .ulcon = ULCON,
106 .ufcon = UFCON,
107 },
108 [1] = {
109 .hwport = 1,
110 .flags = 0,
111 .ucon = UCON,
112 .ulcon = ULCON,
113 .ufcon = UFCON,
114 },
115 /* port 2 is not actually used */
116 [2] = {
117 .hwport = 2,
118 .flags = 0,
119 .ucon = UCON,
120 .ulcon = ULCON,
121 .ufcon = UFCON,
122 }
123 };
124
125 /* definitions for the vr1000 extra 16550 serial ports */
126
127 #define VR1000_BAUDBASE (3692307)
128
129 #define VR1000_SERIAL_MAPBASE(x) (VR1000_PA_SERIAL + 0x80 + ((x) << 5))
130
131 static struct plat_serial8250_port serial_platform_data[] = {
132 [0] = {
133 .mapbase = VR1000_SERIAL_MAPBASE(0),
134 .irq = VR1000_IRQ_SERIAL + 0,
135 .flags = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
136 .iotype = UPIO_MEM,
137 .regshift = 0,
138 .uartclk = VR1000_BAUDBASE,
139 },
140 [1] = {
141 .mapbase = VR1000_SERIAL_MAPBASE(1),
142 .irq = VR1000_IRQ_SERIAL + 1,
143 .flags = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
144 .iotype = UPIO_MEM,
145 .regshift = 0,
146 .uartclk = VR1000_BAUDBASE,
147 },
148 [2] = {
149 .mapbase = VR1000_SERIAL_MAPBASE(2),
150 .irq = VR1000_IRQ_SERIAL + 2,
151 .flags = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
152 .iotype = UPIO_MEM,
153 .regshift = 0,
154 .uartclk = VR1000_BAUDBASE,
155 },
156 [3] = {
157 .mapbase = VR1000_SERIAL_MAPBASE(3),
158 .irq = VR1000_IRQ_SERIAL + 3,
159 .flags = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
160 .iotype = UPIO_MEM,
161 .regshift = 0,
162 .uartclk = VR1000_BAUDBASE,
163 },
164 { },
165 };
166
167 static struct platform_device serial_device = {
168 .name = "serial8250",
169 .id = PLAT8250_DEV_PLATFORM,
170 .dev = {
171 .platform_data = serial_platform_data,
172 },
173 };
174
175 /* DM9000 ethernet devices */
176
177 static struct resource vr1000_dm9k0_resource[] = {
178 [0] = DEFINE_RES_MEM(S3C2410_CS5 + VR1000_PA_DM9000, 4),
179 [1] = DEFINE_RES_MEM(S3C2410_CS5 + VR1000_PA_DM9000 + 0x40, 0x40),
180 [2] = DEFINE_RES_NAMED(VR1000_IRQ_DM9000A, 1, NULL, IORESOURCE_IRQ \
181 | IORESOURCE_IRQ_HIGHLEVEL),
182 };
183
184 static struct resource vr1000_dm9k1_resource[] = {
185 [0] = DEFINE_RES_MEM(S3C2410_CS5 + VR1000_PA_DM9000 + 0x80, 4),
186 [1] = DEFINE_RES_MEM(S3C2410_CS5 + VR1000_PA_DM9000 + 0xC0, 0x40),
187 [2] = DEFINE_RES_NAMED(VR1000_IRQ_DM9000N, 1, NULL, IORESOURCE_IRQ \
188 | IORESOURCE_IRQ_HIGHLEVEL),
189 };
190
191 /* for the moment we limit ourselves to 16bit IO until some
192 * better IO routines can be written and tested
193 */
194
195 static struct dm9000_plat_data vr1000_dm9k_platdata = {
196 .flags = DM9000_PLATF_16BITONLY,
197 };
198
199 static struct platform_device vr1000_dm9k0 = {
200 .name = "dm9000",
201 .id = 0,
202 .num_resources = ARRAY_SIZE(vr1000_dm9k0_resource),
203 .resource = vr1000_dm9k0_resource,
204 .dev = {
205 .platform_data = &vr1000_dm9k_platdata,
206 }
207 };
208
209 static struct platform_device vr1000_dm9k1 = {
210 .name = "dm9000",
211 .id = 1,
212 .num_resources = ARRAY_SIZE(vr1000_dm9k1_resource),
213 .resource = vr1000_dm9k1_resource,
214 .dev = {
215 .platform_data = &vr1000_dm9k_platdata,
216 }
217 };
218
219 /* LEDS */
220
221 static struct gpiod_lookup_table vr1000_led1_gpio_table = {
222 .dev_id = "s3c24xx_led.1",
223 .table = {
224 GPIO_LOOKUP("GPB", 0, NULL, GPIO_ACTIVE_HIGH),
225 { },
226 },
227 };
228
229 static struct gpiod_lookup_table vr1000_led2_gpio_table = {
230 .dev_id = "s3c24xx_led.2",
231 .table = {
232 GPIO_LOOKUP("GPB", 1, NULL, GPIO_ACTIVE_HIGH),
233 { },
234 },
235 };
236
237 static struct gpiod_lookup_table vr1000_led3_gpio_table = {
238 .dev_id = "s3c24xx_led.3",
239 .table = {
240 GPIO_LOOKUP("GPB", 2, NULL, GPIO_ACTIVE_HIGH),
241 { },
242 },
243 };
244
245 static struct s3c24xx_led_platdata vr1000_led1_pdata = {
246 .name = "led1",
247 .def_trigger = "",
248 };
249
250 static struct s3c24xx_led_platdata vr1000_led2_pdata = {
251 .name = "led2",
252 .def_trigger = "",
253 };
254
255 static struct s3c24xx_led_platdata vr1000_led3_pdata = {
256 .name = "led3",
257 .def_trigger = "",
258 };
259
260 static struct platform_device vr1000_led1 = {
261 .name = "s3c24xx_led",
262 .id = 1,
263 .dev = {
264 .platform_data = &vr1000_led1_pdata,
265 },
266 };
267
268 static struct platform_device vr1000_led2 = {
269 .name = "s3c24xx_led",
270 .id = 2,
271 .dev = {
272 .platform_data = &vr1000_led2_pdata,
273 },
274 };
275
276 static struct platform_device vr1000_led3 = {
277 .name = "s3c24xx_led",
278 .id = 3,
279 .dev = {
280 .platform_data = &vr1000_led3_pdata,
281 },
282 };
283
284 /* I2C devices. */
285
286 static struct i2c_board_info vr1000_i2c_devs[] __initdata = {
287 {
288 I2C_BOARD_INFO("tlv320aic23", 0x1a),
289 }, {
290 I2C_BOARD_INFO("tmp101", 0x48),
291 }, {
292 I2C_BOARD_INFO("m41st87", 0x68),
293 },
294 };
295
296 /* devices for this board */
297
298 static struct platform_device *vr1000_devices[] __initdata = {
299 &s3c2410_device_dclk,
300 &s3c_device_ohci,
301 &s3c_device_lcd,
302 &s3c_device_wdt,
303 &s3c_device_i2c0,
304 &s3c_device_adc,
305 &serial_device,
306 &vr1000_dm9k0,
307 &vr1000_dm9k1,
308 &vr1000_led1,
309 &vr1000_led2,
310 &vr1000_led3,
311 };
312
vr1000_power_off(void)313 static void vr1000_power_off(void)
314 {
315 gpio_direction_output(S3C2410_GPB(9), 1);
316 }
317
vr1000_map_io(void)318 static void __init vr1000_map_io(void)
319 {
320 pm_power_off = vr1000_power_off;
321
322 s3c24xx_init_io(vr1000_iodesc, ARRAY_SIZE(vr1000_iodesc));
323 s3c24xx_init_uarts(vr1000_uartcfgs, ARRAY_SIZE(vr1000_uartcfgs));
324 s3c24xx_set_timer_source(S3C24XX_PWM3, S3C24XX_PWM4);
325 }
326
vr1000_init_time(void)327 static void __init vr1000_init_time(void)
328 {
329 s3c2410_init_clocks(12000000);
330 s3c24xx_timer_init();
331 }
332
vr1000_init(void)333 static void __init vr1000_init(void)
334 {
335 s3c_i2c0_set_platdata(NULL);
336
337 /* Disable pull-up on LED lines and register GPIO lookups */
338 s3c_gpio_setpull(S3C2410_GPB(0), S3C_GPIO_PULL_NONE);
339 s3c_gpio_setpull(S3C2410_GPB(1), S3C_GPIO_PULL_NONE);
340 s3c_gpio_setpull(S3C2410_GPB(2), S3C_GPIO_PULL_NONE);
341 gpiod_add_lookup_table(&vr1000_led1_gpio_table);
342 gpiod_add_lookup_table(&vr1000_led2_gpio_table);
343 gpiod_add_lookup_table(&vr1000_led3_gpio_table);
344
345 platform_add_devices(vr1000_devices, ARRAY_SIZE(vr1000_devices));
346
347 i2c_register_board_info(0, vr1000_i2c_devs,
348 ARRAY_SIZE(vr1000_i2c_devs));
349
350 nor_simtec_init();
351 simtec_audio_add(NULL, true, NULL);
352
353 WARN_ON(gpio_request(S3C2410_GPB(9), "power off"));
354 }
355
356 MACHINE_START(VR1000, "Thorcom-VR1000")
357 /* Maintainer: Ben Dooks <ben@simtec.co.uk> */
358 .atag_offset = 0x100,
359 .nr_irqs = NR_IRQS_S3C2410,
360 .map_io = vr1000_map_io,
361 .init_machine = vr1000_init,
362 .init_irq = s3c2410_init_irq,
363 .init_time = vr1000_init_time,
364 MACHINE_END
365