xref: /openbmc/linux/arch/arm/mach-sa1100/collie.c (revision afb46f79) 
1 /*
2  * linux/arch/arm/mach-sa1100/collie.c
3  *
4  * May be copied or modified under the terms of the GNU General Public
5  * License.  See linux/COPYING for more information.
6  *
7  * This file contains all Collie-specific tweaks.
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  * ChangeLog:
14  *  2006 Pavel Machek <pavel@ucw.cz>
15  *  03-06-2004 John Lenz <lenz@cs.wisc.edu>
16  *  06-04-2002 Chris Larson <kergoth@digitalnemesis.net>
17  *  04-16-2001 Lineo Japan,Inc. ...
18  */
19 
20 #include <linux/init.h>
21 #include <linux/kernel.h>
22 #include <linux/tty.h>
23 #include <linux/delay.h>
24 #include <linux/platform_data/sa11x0-serial.h>
25 #include <linux/platform_device.h>
26 #include <linux/mfd/ucb1x00.h>
27 #include <linux/mtd/mtd.h>
28 #include <linux/mtd/partitions.h>
29 #include <linux/timer.h>
30 #include <linux/gpio_keys.h>
31 #include <linux/input.h>
32 #include <linux/gpio.h>
33 #include <linux/pda_power.h>
34 
35 #include <video/sa1100fb.h>
36 
37 #include <mach/hardware.h>
38 #include <asm/mach-types.h>
39 #include <asm/page.h>
40 #include <asm/setup.h>
41 #include <mach/collie.h>
42 
43 #include <asm/mach/arch.h>
44 #include <asm/mach/flash.h>
45 #include <asm/mach/map.h>
46 #include <asm/mach/irda.h>
47 
48 #include <asm/hardware/scoop.h>
49 #include <asm/mach/sharpsl_param.h>
50 #include <asm/hardware/locomo.h>
51 #include <linux/platform_data/mfd-mcp-sa11x0.h>
52 #include <mach/irqs.h>
53 
54 #include "generic.h"
55 
56 static struct resource collie_scoop_resources[] = {
57 	[0] = DEFINE_RES_MEM(0x40800000, SZ_4K),
58 };
59 
60 static struct scoop_config collie_scoop_setup = {
61 	.io_dir 	= COLLIE_SCOOP_IO_DIR,
62 	.io_out		= COLLIE_SCOOP_IO_OUT,
63 	.gpio_base	= COLLIE_SCOOP_GPIO_BASE,
64 };
65 
66 struct platform_device colliescoop_device = {
67 	.name		= "sharp-scoop",
68 	.id		= -1,
69 	.dev		= {
70  		.platform_data	= &collie_scoop_setup,
71 	},
72 	.num_resources	= ARRAY_SIZE(collie_scoop_resources),
73 	.resource	= collie_scoop_resources,
74 };
75 
76 static struct scoop_pcmcia_dev collie_pcmcia_scoop[] = {
77 	{
78 	.dev		= &colliescoop_device.dev,
79 	.irq		= COLLIE_IRQ_GPIO_CF_IRQ,
80 	.cd_irq		= COLLIE_IRQ_GPIO_CF_CD,
81 	.cd_irq_str	= "PCMCIA0 CD",
82 	},
83 };
84 
85 static struct scoop_pcmcia_config collie_pcmcia_config = {
86 	.devs		= &collie_pcmcia_scoop[0],
87 	.num_devs	= 1,
88 };
89 
90 static struct ucb1x00_plat_data collie_ucb1x00_data = {
91 	.gpio_base	= COLLIE_TC35143_GPIO_BASE,
92 };
93 
94 static struct mcp_plat_data collie_mcp_data = {
95 	.mccr0		= MCCR0_ADM | MCCR0_ExtClk,
96 	.sclk_rate	= 9216000,
97 	.codec_pdata	= &collie_ucb1x00_data,
98 };
99 
100 static int collie_ir_startup(struct device *dev)
101 {
102 	int rc = gpio_request(COLLIE_GPIO_IR_ON, "IrDA");
103 	if (rc)
104 		return rc;
105 	rc = gpio_direction_output(COLLIE_GPIO_IR_ON, 1);
106 
107 	if (!rc)
108 		return 0;
109 
110 	gpio_free(COLLIE_GPIO_IR_ON);
111 	return rc;
112 }
113 
114 static void collie_ir_shutdown(struct device *dev)
115 {
116 	gpio_free(COLLIE_GPIO_IR_ON);
117 }
118 
119 static int collie_ir_set_power(struct device *dev, unsigned int state)
120 {
121 	gpio_set_value(COLLIE_GPIO_IR_ON, !state);
122 	return 0;
123 }
124 
125 static struct irda_platform_data collie_ir_data = {
126 	.startup = collie_ir_startup,
127 	.shutdown = collie_ir_shutdown,
128 	.set_power = collie_ir_set_power,
129 };
130 
131 /*
132  * Collie AC IN
133  */
134 static int collie_power_init(struct device *dev)
135 {
136 	int ret = gpio_request(COLLIE_GPIO_AC_IN, "ac in");
137 	if (ret)
138 		goto err_gpio_req;
139 
140 	ret = gpio_direction_input(COLLIE_GPIO_AC_IN);
141 	if (ret)
142 		goto err_gpio_in;
143 
144 	return 0;
145 
146 err_gpio_in:
147 	gpio_free(COLLIE_GPIO_AC_IN);
148 err_gpio_req:
149 	return ret;
150 }
151 
152 static void collie_power_exit(struct device *dev)
153 {
154 	gpio_free(COLLIE_GPIO_AC_IN);
155 }
156 
157 static int collie_power_ac_online(void)
158 {
159 	return gpio_get_value(COLLIE_GPIO_AC_IN) == 2;
160 }
161 
162 static char *collie_ac_supplied_to[] = {
163 	"main-battery",
164 	"backup-battery",
165 };
166 
167 static struct pda_power_pdata collie_power_data = {
168 	.init			= collie_power_init,
169 	.is_ac_online		= collie_power_ac_online,
170 	.exit			= collie_power_exit,
171 	.supplied_to		= collie_ac_supplied_to,
172 	.num_supplicants	= ARRAY_SIZE(collie_ac_supplied_to),
173 };
174 
175 static struct resource collie_power_resource[] = {
176 	{
177 		.name		= "ac",
178 		.flags		= IORESOURCE_IRQ |
179 				  IORESOURCE_IRQ_HIGHEDGE |
180 				  IORESOURCE_IRQ_LOWEDGE,
181 	},
182 };
183 
184 static struct platform_device collie_power_device = {
185 	.name			= "pda-power",
186 	.id			= -1,
187 	.dev.platform_data	= &collie_power_data,
188 	.resource		= collie_power_resource,
189 	.num_resources		= ARRAY_SIZE(collie_power_resource),
190 };
191 
192 #ifdef CONFIG_SHARP_LOCOMO
193 /*
194  * low-level UART features.
195  */
196 struct platform_device collie_locomo_device;
197 
198 static void collie_uart_set_mctrl(struct uart_port *port, u_int mctrl)
199 {
200 	if (mctrl & TIOCM_RTS)
201 		locomo_gpio_write(&collie_locomo_device.dev, LOCOMO_GPIO_RTS, 0);
202 	else
203 		locomo_gpio_write(&collie_locomo_device.dev, LOCOMO_GPIO_RTS, 1);
204 
205 	if (mctrl & TIOCM_DTR)
206 		locomo_gpio_write(&collie_locomo_device.dev, LOCOMO_GPIO_DTR, 0);
207 	else
208 		locomo_gpio_write(&collie_locomo_device.dev, LOCOMO_GPIO_DTR, 1);
209 }
210 
211 static u_int collie_uart_get_mctrl(struct uart_port *port)
212 {
213 	int ret = TIOCM_CD;
214 	unsigned int r;
215 
216 	r = locomo_gpio_read_output(&collie_locomo_device.dev, LOCOMO_GPIO_CTS & LOCOMO_GPIO_DSR);
217 	if (r == -ENODEV)
218 		return ret;
219 	if (r & LOCOMO_GPIO_CTS)
220 		ret |= TIOCM_CTS;
221 	if (r & LOCOMO_GPIO_DSR)
222 		ret |= TIOCM_DSR;
223 
224 	return ret;
225 }
226 
227 static struct sa1100_port_fns collie_port_fns __initdata = {
228 	.set_mctrl	= collie_uart_set_mctrl,
229 	.get_mctrl	= collie_uart_get_mctrl,
230 };
231 
232 static int collie_uart_probe(struct locomo_dev *dev)
233 {
234 	return 0;
235 }
236 
237 static int collie_uart_remove(struct locomo_dev *dev)
238 {
239 	return 0;
240 }
241 
242 static struct locomo_driver collie_uart_driver = {
243 	.drv = {
244 		.name = "collie_uart",
245 	},
246 	.devid	= LOCOMO_DEVID_UART,
247 	.probe	= collie_uart_probe,
248 	.remove	= collie_uart_remove,
249 };
250 
251 static int __init collie_uart_init(void)
252 {
253 	return locomo_driver_register(&collie_uart_driver);
254 }
255 device_initcall(collie_uart_init);
256 
257 #endif
258 
259 
260 static struct resource locomo_resources[] = {
261 	[0] = DEFINE_RES_MEM(0x40000000, SZ_8K),
262 	[1] = DEFINE_RES_IRQ(IRQ_GPIO25),
263 };
264 
265 static struct locomo_platform_data locomo_info = {
266 	.irq_base	= IRQ_BOARD_START,
267 };
268 
269 struct platform_device collie_locomo_device = {
270 	.name		= "locomo",
271 	.id		= 0,
272 	.dev		= {
273 		.platform_data	= &locomo_info,
274 	},
275 	.num_resources	= ARRAY_SIZE(locomo_resources),
276 	.resource	= locomo_resources,
277 };
278 
279 static struct gpio_keys_button collie_gpio_keys[] = {
280 	{
281 		.type	= EV_PWR,
282 		.code	= KEY_RESERVED,
283 		.gpio	= COLLIE_GPIO_ON_KEY,
284 		.desc	= "On key",
285 		.wakeup	= 1,
286 		.active_low = 1,
287 	},
288 	{
289 		.type	= EV_PWR,
290 		.code	= KEY_WAKEUP,
291 		.gpio	= COLLIE_GPIO_WAKEUP,
292 		.desc	= "Sync",
293 		.wakeup = 1,
294 		.active_low = 1,
295 	},
296 };
297 
298 static struct gpio_keys_platform_data collie_gpio_keys_data = {
299 	.buttons	= collie_gpio_keys,
300 	.nbuttons	= ARRAY_SIZE(collie_gpio_keys),
301 };
302 
303 static struct platform_device collie_gpio_keys_device = {
304 	.name	= "gpio-keys",
305 	.id	= -1,
306 	.dev	= {
307 		.platform_data = &collie_gpio_keys_data,
308 	},
309 };
310 
311 static struct platform_device *devices[] __initdata = {
312 	&collie_locomo_device,
313 	&colliescoop_device,
314 	&collie_power_device,
315 	&collie_gpio_keys_device,
316 };
317 
318 static struct mtd_partition collie_partitions[] = {
319 	{
320 		.name		= "bootloader",
321 		.offset 	= 0,
322 		.size		= 0x000C0000,
323 		.mask_flags	= MTD_WRITEABLE
324 	}, {
325 		.name		= "kernel",
326 		.offset 	= MTDPART_OFS_APPEND,
327 		.size		= 0x00100000,
328 	}, {
329 		.name		= "rootfs",
330 		.offset 	= MTDPART_OFS_APPEND,
331 		.size		= 0x00e20000,
332 	}
333 };
334 
335 static int collie_flash_init(void)
336 {
337 	int rc = gpio_request(COLLIE_GPIO_VPEN, "flash Vpp enable");
338 	if (rc)
339 		return rc;
340 
341 	rc = gpio_direction_output(COLLIE_GPIO_VPEN, 1);
342 	if (rc)
343 		gpio_free(COLLIE_GPIO_VPEN);
344 
345 	return rc;
346 }
347 
348 static void collie_set_vpp(int vpp)
349 {
350 	gpio_set_value(COLLIE_GPIO_VPEN, vpp);
351 }
352 
353 static void collie_flash_exit(void)
354 {
355 	gpio_free(COLLIE_GPIO_VPEN);
356 }
357 
358 static struct flash_platform_data collie_flash_data = {
359 	.map_name	= "jedec_probe",
360 	.init		= collie_flash_init,
361 	.set_vpp	= collie_set_vpp,
362 	.exit		= collie_flash_exit,
363 	.parts		= collie_partitions,
364 	.nr_parts	= ARRAY_SIZE(collie_partitions),
365 };
366 
367 static struct resource collie_flash_resources[] = {
368 	DEFINE_RES_MEM(SA1100_CS0_PHYS, SZ_32M),
369 };
370 
371 static struct sa1100fb_mach_info collie_lcd_info = {
372 	.pixclock	= 171521,	.bpp		= 16,
373 	.xres		= 320,		.yres		= 240,
374 
375 	.hsync_len	= 5,		.vsync_len	= 1,
376 	.left_margin	= 11,		.upper_margin	= 2,
377 	.right_margin	= 30,		.lower_margin	= 0,
378 
379 	.sync		= FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
380 
381 	.lccr0		= LCCR0_Color | LCCR0_Sngl | LCCR0_Act,
382 	.lccr3		= LCCR3_OutEnH | LCCR3_PixRsEdg | LCCR3_ACBsDiv(2),
383 
384 #ifdef CONFIG_BACKLIGHT_LOCOMO
385 	.lcd_power	= locomolcd_power
386 #endif
387 };
388 
389 static void __init collie_init(void)
390 {
391 	int ret = 0;
392 
393 	/* cpu initialize */
394 	GAFR = GPIO_SSP_TXD | GPIO_SSP_SCLK | GPIO_SSP_SFRM | GPIO_SSP_CLK |
395 		GPIO_MCP_CLK | GPIO_32_768kHz;
396 
397 	GPDR = GPIO_LDD8 | GPIO_LDD9 | GPIO_LDD10 | GPIO_LDD11 | GPIO_LDD12 |
398 		GPIO_LDD13 | GPIO_LDD14 | GPIO_LDD15 | GPIO_SSP_TXD |
399 		GPIO_SSP_SCLK | GPIO_SSP_SFRM | GPIO_SDLC_SCLK |
400 		_COLLIE_GPIO_UCB1x00_RESET | _COLLIE_GPIO_nMIC_ON |
401 		_COLLIE_GPIO_nREMOCON_ON | GPIO_32_768kHz;
402 
403 	PPDR = PPC_LDD0 | PPC_LDD1 | PPC_LDD2 | PPC_LDD3 | PPC_LDD4 | PPC_LDD5 |
404 		PPC_LDD6 | PPC_LDD7 | PPC_L_PCLK | PPC_L_LCLK | PPC_L_FCLK | PPC_L_BIAS |
405 		PPC_TXD1 | PPC_TXD2 | PPC_TXD3 | PPC_TXD4 | PPC_SCLK | PPC_SFRM;
406 
407 	PWER = _COLLIE_GPIO_AC_IN | _COLLIE_GPIO_CO | _COLLIE_GPIO_ON_KEY |
408 		_COLLIE_GPIO_WAKEUP | _COLLIE_GPIO_nREMOCON_INT | PWER_RTC;
409 
410 	PGSR = _COLLIE_GPIO_nREMOCON_ON;
411 
412 	PSDR = PPC_RXD1 | PPC_RXD2 | PPC_RXD3 | PPC_RXD4;
413 
414 	PCFR = PCFR_OPDE;
415 
416 	GPSR |= _COLLIE_GPIO_UCB1x00_RESET;
417 
418 	collie_power_resource[0].start = gpio_to_irq(COLLIE_GPIO_AC_IN);
419 	collie_power_resource[0].end = gpio_to_irq(COLLIE_GPIO_AC_IN);
420 
421 	sa11x0_ppc_configure_mcp();
422 
423 
424 	platform_scoop_config = &collie_pcmcia_config;
425 
426 	ret = platform_add_devices(devices, ARRAY_SIZE(devices));
427 	if (ret) {
428 		printk(KERN_WARNING "collie: Unable to register LoCoMo device\n");
429 	}
430 
431 	sa11x0_register_lcd(&collie_lcd_info);
432 	sa11x0_register_mtd(&collie_flash_data, collie_flash_resources,
433 			    ARRAY_SIZE(collie_flash_resources));
434 	sa11x0_register_mcp(&collie_mcp_data);
435 	sa11x0_register_irda(&collie_ir_data);
436 
437 	sharpsl_save_param();
438 }
439 
440 static struct map_desc collie_io_desc[] __initdata = {
441 	{	/* 32M main flash (cs0) */
442 		.virtual	= 0xe8000000,
443 		.pfn		= __phys_to_pfn(0x00000000),
444 		.length		= 0x02000000,
445 		.type		= MT_DEVICE
446 	}, {	/* 32M boot flash (cs1) */
447 		.virtual	= 0xea000000,
448 		.pfn		= __phys_to_pfn(0x08000000),
449 		.length		= 0x02000000,
450 		.type		= MT_DEVICE
451 	}
452 };
453 
454 static void __init collie_map_io(void)
455 {
456 	sa1100_map_io();
457 	iotable_init(collie_io_desc, ARRAY_SIZE(collie_io_desc));
458 
459 #ifdef CONFIG_SHARP_LOCOMO
460 	sa1100_register_uart_fns(&collie_port_fns);
461 #endif
462 	sa1100_register_uart(0, 3);
463 	sa1100_register_uart(1, 1);
464 }
465 
466 MACHINE_START(COLLIE, "Sharp-Collie")
467 	.map_io		= collie_map_io,
468 	.nr_irqs	= SA1100_NR_IRQS,
469 	.init_irq	= sa1100_init_irq,
470 	.init_time	= sa1100_timer_init,
471 	.init_machine	= collie_init,
472 	.init_late	= sa11x0_init_late,
473 	.restart	= sa11x0_restart,
474 MACHINE_END
475