This source file includes following definitions.
- simpad_get_cs3_ro
- simpad_get_cs3_shadow
- __simpad_write_cs3
- simpad_set_cs3_bit
- simpad_clear_cs3_bit
- cs3_gpio_set
- cs3_gpio_get
- cs3_gpio_direction_input
- cs3_gpio_direction_output
- simpad_uart_pm
- simpad_map_io
- simpad_power_off
- simpad_init
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5
6 #include <linux/module.h>
7 #include <linux/gpio/machine.h>
8 #include <linux/init.h>
9 #include <linux/kernel.h>
10 #include <linux/tty.h>
11 #include <linux/proc_fs.h>
12 #include <linux/string.h>
13 #include <linux/pm.h>
14 #include <linux/platform_data/sa11x0-serial.h>
15 #include <linux/platform_device.h>
16 #include <linux/mfd/ucb1x00.h>
17 #include <linux/mtd/mtd.h>
18 #include <linux/mtd/partitions.h>
19 #include <linux/io.h>
20 #include <linux/gpio/driver.h>
21
22 #include <mach/hardware.h>
23 #include <asm/setup.h>
24 #include <asm/irq.h>
25
26 #include <asm/mach-types.h>
27 #include <asm/mach/arch.h>
28 #include <asm/mach/flash.h>
29 #include <asm/mach/map.h>
30 #include <linux/platform_data/mfd-mcp-sa11x0.h>
31 #include <mach/simpad.h>
32 #include <mach/irqs.h>
33
34 #include <linux/serial_core.h>
35 #include <linux/ioport.h>
36 #include <linux/input.h>
37 #include <linux/gpio_keys.h>
38 #include <linux/leds.h>
39 #include <linux/platform_data/i2c-gpio.h>
40
41 #include "generic.h"
42
43
44
45
46
47 static long cs3_shadow;
48 static spinlock_t cs3_lock;
49 static struct gpio_chip cs3_gpio;
50
51 long simpad_get_cs3_ro(void)
52 {
53 return readl(CS3_BASE);
54 }
55 EXPORT_SYMBOL(simpad_get_cs3_ro);
56
57 long simpad_get_cs3_shadow(void)
58 {
59 return cs3_shadow;
60 }
61 EXPORT_SYMBOL(simpad_get_cs3_shadow);
62
63 static void __simpad_write_cs3(void)
64 {
65 writel(cs3_shadow, CS3_BASE);
66 }
67
68 void simpad_set_cs3_bit(int value)
69 {
70 unsigned long flags;
71
72 spin_lock_irqsave(&cs3_lock, flags);
73 cs3_shadow |= value;
74 __simpad_write_cs3();
75 spin_unlock_irqrestore(&cs3_lock, flags);
76 }
77 EXPORT_SYMBOL(simpad_set_cs3_bit);
78
79 void simpad_clear_cs3_bit(int value)
80 {
81 unsigned long flags;
82
83 spin_lock_irqsave(&cs3_lock, flags);
84 cs3_shadow &= ~value;
85 __simpad_write_cs3();
86 spin_unlock_irqrestore(&cs3_lock, flags);
87 }
88 EXPORT_SYMBOL(simpad_clear_cs3_bit);
89
90 static void cs3_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
91 {
92 if (offset > 15)
93 return;
94 if (value)
95 simpad_set_cs3_bit(1 << offset);
96 else
97 simpad_clear_cs3_bit(1 << offset);
98 };
99
100 static int cs3_gpio_get(struct gpio_chip *chip, unsigned offset)
101 {
102 if (offset > 15)
103 return !!(simpad_get_cs3_ro() & (1 << (offset - 16)));
104 return !!(simpad_get_cs3_shadow() & (1 << offset));
105 };
106
107 static int cs3_gpio_direction_input(struct gpio_chip *chip, unsigned offset)
108 {
109 if (offset > 15)
110 return 0;
111 return -EINVAL;
112 };
113
114 static int cs3_gpio_direction_output(struct gpio_chip *chip, unsigned offset,
115 int value)
116 {
117 if (offset > 15)
118 return -EINVAL;
119 cs3_gpio_set(chip, offset, value);
120 return 0;
121 };
122
123 static struct map_desc simpad_io_desc[] __initdata = {
124 {
125 .virtual = 0xf2800000,
126 .pfn = __phys_to_pfn(0x4b800000),
127 .length = 0x00800000,
128 .type = MT_DEVICE
129 }, {
130 .virtual = (unsigned long)CS3_BASE,
131 .pfn = __phys_to_pfn(SA1100_CS3_PHYS),
132 .length = 0x00100000,
133 .type = MT_DEVICE
134 },
135 };
136
137
138 static void simpad_uart_pm(struct uart_port *port, u_int state, u_int oldstate)
139 {
140 if (port->mapbase == (u_int)&Ser1UTCR0) {
141 if (state)
142 {
143 simpad_clear_cs3_bit(RS232_ON);
144 simpad_clear_cs3_bit(DECT_POWER_ON);
145 }else
146 {
147 simpad_set_cs3_bit(RS232_ON);
148 simpad_set_cs3_bit(DECT_POWER_ON);
149 }
150 }
151 }
152
153 static struct sa1100_port_fns simpad_port_fns __initdata = {
154 .pm = simpad_uart_pm,
155 };
156
157
158 static struct mtd_partition simpad_partitions[] = {
159 {
160 .name = "SIMpad boot firmware",
161 .size = 0x00080000,
162 .offset = 0,
163 .mask_flags = MTD_WRITEABLE,
164 }, {
165 .name = "SIMpad kernel",
166 .size = 0x0010000,
167 .offset = MTDPART_OFS_APPEND,
168 }, {
169 .name = "SIMpad root jffs2",
170 .size = MTDPART_SIZ_FULL,
171 .offset = MTDPART_OFS_APPEND,
172 }
173 };
174
175 static struct flash_platform_data simpad_flash_data = {
176 .map_name = "cfi_probe",
177 .parts = simpad_partitions,
178 .nr_parts = ARRAY_SIZE(simpad_partitions),
179 };
180
181
182 static struct resource simpad_flash_resources [] = {
183 DEFINE_RES_MEM(SA1100_CS0_PHYS, SZ_16M),
184 DEFINE_RES_MEM(SA1100_CS1_PHYS, SZ_16M),
185 };
186
187 static struct ucb1x00_plat_data simpad_ucb1x00_data = {
188 .gpio_base = SIMPAD_UCB1X00_GPIO_BASE,
189 };
190
191 static struct mcp_plat_data simpad_mcp_data = {
192 .mccr0 = MCCR0_ADM,
193 .sclk_rate = 11981000,
194 .codec_pdata = &simpad_ucb1x00_data,
195 };
196
197
198
199 static void __init simpad_map_io(void)
200 {
201 sa1100_map_io();
202
203 iotable_init(simpad_io_desc, ARRAY_SIZE(simpad_io_desc));
204
205
206 cs3_shadow = (EN1 | EN0 | LED2_ON | DISPLAY_ON |
207 RS232_ON | ENABLE_5V | RESET_SIMCARD | DECT_POWER_ON);
208 __simpad_write_cs3();
209
210 sa1100_register_uart_fns(&simpad_port_fns);
211 sa1100_register_uart(0, 3);
212 sa1100_register_uart(1, 1);
213
214
215 GAFR |= GPIO_UART_TXD | GPIO_UART_RXD;
216 GPDR |= GPIO_UART_TXD | GPIO_LDD13 | GPIO_LDD15;
217 GPDR &= ~GPIO_UART_RXD;
218 PPAR |= PPAR_UPR;
219
220
221
222
223
224
225 PWER = PWER_GPIO0| PWER_RTC;
226 PGSR = 0x818;
227 PCFR = 0;
228 PSDR = 0;
229
230 }
231
232 static void simpad_power_off(void)
233 {
234 local_irq_disable();
235 cs3_shadow = SD_MEDIAQ;
236 __simpad_write_cs3();
237
238
239 PCFR = (PCFR_OPDE | PCFR_FP | PCFR_FS);
240
241 PWER = GFER = GRER = PWER_GPIO0;
242
243
244
245
246 PSPR = 0;
247 PGSR = 0;
248
249 PMCR = PMCR_SF;
250 while(1);
251
252 local_irq_enable();
253
254
255 }
256
257
258
259
260
261 static struct gpio_keys_button simpad_button_table[] = {
262 { KEY_POWER, IRQ_GPIO_POWER_BUTTON, 1, "power button" },
263 };
264
265 static struct gpio_keys_platform_data simpad_keys_data = {
266 .buttons = simpad_button_table,
267 .nbuttons = ARRAY_SIZE(simpad_button_table),
268 };
269
270 static struct platform_device simpad_keys = {
271 .name = "gpio-keys",
272 .dev = {
273 .platform_data = &simpad_keys_data,
274 },
275 };
276
277 static struct gpio_keys_button simpad_polled_button_table[] = {
278 { KEY_PROG1, SIMPAD_UCB1X00_GPIO_PROG1, 1, "prog1 button" },
279 { KEY_PROG2, SIMPAD_UCB1X00_GPIO_PROG2, 1, "prog2 button" },
280 { KEY_UP, SIMPAD_UCB1X00_GPIO_UP, 1, "up button" },
281 { KEY_DOWN, SIMPAD_UCB1X00_GPIO_DOWN, 1, "down button" },
282 { KEY_LEFT, SIMPAD_UCB1X00_GPIO_LEFT, 1, "left button" },
283 { KEY_RIGHT, SIMPAD_UCB1X00_GPIO_RIGHT, 1, "right button" },
284 };
285
286 static struct gpio_keys_platform_data simpad_polled_keys_data = {
287 .buttons = simpad_polled_button_table,
288 .nbuttons = ARRAY_SIZE(simpad_polled_button_table),
289 .poll_interval = 50,
290 };
291
292 static struct platform_device simpad_polled_keys = {
293 .name = "gpio-keys-polled",
294 .dev = {
295 .platform_data = &simpad_polled_keys_data,
296 },
297 };
298
299
300
301
302
303 static struct gpio_led simpad_leds[] = {
304 {
305 .name = "simpad:power",
306 .gpio = SIMPAD_CS3_LED2_ON,
307 .active_low = 0,
308 .default_trigger = "default-on",
309 },
310 };
311
312 static struct gpio_led_platform_data simpad_led_data = {
313 .num_leds = ARRAY_SIZE(simpad_leds),
314 .leds = simpad_leds,
315 };
316
317 static struct platform_device simpad_gpio_leds = {
318 .name = "leds-gpio",
319 .id = 0,
320 .dev = {
321 .platform_data = &simpad_led_data,
322 },
323 };
324
325
326
327
328 static struct gpiod_lookup_table simpad_i2c_gpiod_table = {
329 .dev_id = "i2c-gpio.0",
330 .table = {
331 GPIO_LOOKUP_IDX("gpio", 21, NULL, 0,
332 GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN),
333 GPIO_LOOKUP_IDX("gpio", 25, NULL, 1,
334 GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN),
335 },
336 };
337
338 static struct i2c_gpio_platform_data simpad_i2c_data = {
339 .udelay = 10,
340 .timeout = HZ,
341 };
342
343 static struct platform_device simpad_i2c = {
344 .name = "i2c-gpio",
345 .id = 0,
346 .dev = {
347 .platform_data = &simpad_i2c_data,
348 },
349 };
350
351
352
353
354 static struct platform_device simpad_mq200fb = {
355 .name = "simpad-mq200",
356 .id = 0,
357 };
358
359 static struct platform_device *devices[] __initdata = {
360 &simpad_keys,
361 &simpad_polled_keys,
362 &simpad_mq200fb,
363 &simpad_gpio_leds,
364 &simpad_i2c,
365 };
366
367
368 static struct gpiod_lookup_table simpad_cf_gpio_table = {
369 .dev_id = "sa11x0-pcmcia",
370 .table = {
371 GPIO_LOOKUP("gpio", GPIO_CF_IRQ, "cf-ready", GPIO_ACTIVE_HIGH),
372 GPIO_LOOKUP("gpio", GPIO_CF_CD, "cf-detect", GPIO_ACTIVE_HIGH),
373 { },
374 },
375 };
376
377
378 static int __init simpad_init(void)
379 {
380 int ret;
381
382 spin_lock_init(&cs3_lock);
383
384 cs3_gpio.label = "simpad_cs3";
385 cs3_gpio.base = SIMPAD_CS3_GPIO_BASE;
386 cs3_gpio.ngpio = 24;
387 cs3_gpio.set = cs3_gpio_set;
388 cs3_gpio.get = cs3_gpio_get;
389 cs3_gpio.direction_input = cs3_gpio_direction_input;
390 cs3_gpio.direction_output = cs3_gpio_direction_output;
391 ret = gpiochip_add_data(&cs3_gpio, NULL);
392 if (ret)
393 printk(KERN_WARNING "simpad: Unable to register cs3 GPIO device");
394
395 pm_power_off = simpad_power_off;
396
397 sa11x0_register_pcmcia(-1, &simpad_cf_gpio_table);
398 sa11x0_ppc_configure_mcp();
399 sa11x0_register_mtd(&simpad_flash_data, simpad_flash_resources,
400 ARRAY_SIZE(simpad_flash_resources));
401 sa11x0_register_mcp(&simpad_mcp_data);
402
403 gpiod_add_lookup_table(&simpad_i2c_gpiod_table);
404 ret = platform_add_devices(devices, ARRAY_SIZE(devices));
405 if(ret)
406 printk(KERN_WARNING "simpad: Unable to register mq200 framebuffer device");
407
408 return 0;
409 }
410
411 arch_initcall(simpad_init);
412
413
414 MACHINE_START(SIMPAD, "Simpad")
415
416 .atag_offset = 0x100,
417 .map_io = simpad_map_io,
418 .nr_irqs = SA1100_NR_IRQS,
419 .init_irq = sa1100_init_irq,
420 .init_late = sa11x0_init_late,
421 .init_time = sa1100_timer_init,
422 .restart = sa11x0_restart,
423 MACHINE_END