xref: /openbmc/linux/arch/arm/mach-sa1100/collie.c (revision 2cf1c348) 
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/gpio/machine.h>
34 #include <linux/power/gpio-charger.h>
35 
36 #include <video/sa1100fb.h>
37 
38 #include <mach/hardware.h>
39 #include <asm/mach-types.h>
40 #include <asm/page.h>
41 #include <asm/setup.h>
42 #include <mach/collie.h>
43 
44 #include <asm/mach/arch.h>
45 #include <asm/mach/flash.h>
46 #include <asm/mach/map.h>
47 #include <linux/platform_data/irda-sa11x0.h>
48 
49 #include <asm/hardware/scoop.h>
50 #include <asm/mach/sharpsl_param.h>
51 #include <asm/hardware/locomo.h>
52 #include <linux/platform_data/mfd-mcp-sa11x0.h>
53 #include <mach/irqs.h>
54 
55 #include "generic.h"
56 
57 static struct resource collie_scoop_resources[] = {
58 	[0] = DEFINE_RES_MEM(0x40800000, SZ_4K),
59 };
60 
61 static struct scoop_config collie_scoop_setup = {
62 	.io_dir 	= COLLIE_SCOOP_IO_DIR,
63 	.io_out		= COLLIE_SCOOP_IO_OUT,
64 	.gpio_base	= COLLIE_SCOOP_GPIO_BASE,
65 };
66 
67 struct platform_device colliescoop_device = {
68 	.name		= "sharp-scoop",
69 	.id		= -1,
70 	.dev		= {
71  		.platform_data	= &collie_scoop_setup,
72 	},
73 	.num_resources	= ARRAY_SIZE(collie_scoop_resources),
74 	.resource	= collie_scoop_resources,
75 };
76 
77 static struct scoop_pcmcia_dev collie_pcmcia_scoop[] = {
78 	{
79 	.dev		= &colliescoop_device.dev,
80 	.irq		= COLLIE_IRQ_GPIO_CF_IRQ,
81 	.cd_irq		= COLLIE_IRQ_GPIO_CF_CD,
82 	.cd_irq_str	= "PCMCIA0 CD",
83 	},
84 };
85 
86 static struct scoop_pcmcia_config collie_pcmcia_config = {
87 	.devs		= &collie_pcmcia_scoop[0],
88 	.num_devs	= 1,
89 };
90 
91 static struct ucb1x00_plat_data collie_ucb1x00_data = {
92 	.gpio_base	= COLLIE_TC35143_GPIO_BASE,
93 };
94 
95 static struct mcp_plat_data collie_mcp_data = {
96 	.mccr0		= MCCR0_ADM | MCCR0_ExtClk,
97 	.sclk_rate	= 9216000,
98 	.codec_pdata	= &collie_ucb1x00_data,
99 };
100 
101 /* Battery management GPIOs */
102 static struct gpiod_lookup_table collie_battery_gpiod_table = {
103 	/* the MCP codec mcp0 has the ucb1x00 as attached device */
104 	.dev_id = "ucb1x00",
105 	.table = {
106 		/* This is found on the main GPIO on the SA1100 */
107 		GPIO_LOOKUP("gpio", COLLIE_GPIO_CO,
108 			    "main battery full", GPIO_ACTIVE_HIGH),
109 		GPIO_LOOKUP("gpio", COLLIE_GPIO_MAIN_BAT_LOW,
110 			    "main battery low", GPIO_ACTIVE_HIGH),
111 		/*
112 		 * This is GPIO 0 on the Scoop expander, which is registered
113 		 * from common/scoop.c with this gpio chip label.
114 		 */
115 		GPIO_LOOKUP("sharp-scoop", 0,
116 			    "main charge on", GPIO_ACTIVE_HIGH),
117 		{ },
118 	},
119 };
120 
121 static int collie_ir_startup(struct device *dev)
122 {
123 	int rc = gpio_request(COLLIE_GPIO_IR_ON, "IrDA");
124 	if (rc)
125 		return rc;
126 	rc = gpio_direction_output(COLLIE_GPIO_IR_ON, 1);
127 
128 	if (!rc)
129 		return 0;
130 
131 	gpio_free(COLLIE_GPIO_IR_ON);
132 	return rc;
133 }
134 
135 static void collie_ir_shutdown(struct device *dev)
136 {
137 	gpio_free(COLLIE_GPIO_IR_ON);
138 }
139 
140 static int collie_ir_set_power(struct device *dev, unsigned int state)
141 {
142 	gpio_set_value(COLLIE_GPIO_IR_ON, !state);
143 	return 0;
144 }
145 
146 static struct irda_platform_data collie_ir_data = {
147 	.startup = collie_ir_startup,
148 	.shutdown = collie_ir_shutdown,
149 	.set_power = collie_ir_set_power,
150 };
151 
152 /*
153  * Collie AC IN
154  */
155 static struct gpiod_lookup_table collie_power_gpiod_table = {
156 	.dev_id = "gpio-charger",
157 	.table = {
158 		GPIO_LOOKUP("gpio", COLLIE_GPIO_AC_IN,
159 			    NULL, GPIO_ACTIVE_HIGH),
160 		{ },
161 	},
162 };
163 
164 static char *collie_ac_supplied_to[] = {
165 	"main-battery",
166 	"backup-battery",
167 };
168 
169 static struct gpio_charger_platform_data collie_power_data = {
170 	.name			= "charger",
171 	.type			= POWER_SUPPLY_TYPE_MAINS,
172 	.supplied_to		= collie_ac_supplied_to,
173 	.num_supplicants	= ARRAY_SIZE(collie_ac_supplied_to),
174 };
175 
176 static struct platform_device collie_power_device = {
177 	.name			= "gpio-charger",
178 	.id			= -1,
179 	.dev.platform_data	= &collie_power_data,
180 };
181 
182 #ifdef CONFIG_SHARP_LOCOMO
183 /*
184  * low-level UART features.
185  */
186 struct platform_device collie_locomo_device;
187 
188 static void collie_uart_set_mctrl(struct uart_port *port, u_int mctrl)
189 {
190 	if (mctrl & TIOCM_RTS)
191 		locomo_gpio_write(&collie_locomo_device.dev, LOCOMO_GPIO_RTS, 0);
192 	else
193 		locomo_gpio_write(&collie_locomo_device.dev, LOCOMO_GPIO_RTS, 1);
194 
195 	if (mctrl & TIOCM_DTR)
196 		locomo_gpio_write(&collie_locomo_device.dev, LOCOMO_GPIO_DTR, 0);
197 	else
198 		locomo_gpio_write(&collie_locomo_device.dev, LOCOMO_GPIO_DTR, 1);
199 }
200 
201 static u_int collie_uart_get_mctrl(struct uart_port *port)
202 {
203 	int ret = TIOCM_CD;
204 	unsigned int r;
205 
206 	r = locomo_gpio_read_output(&collie_locomo_device.dev, LOCOMO_GPIO_CTS & LOCOMO_GPIO_DSR);
207 	if (r == -ENODEV)
208 		return ret;
209 	if (r & LOCOMO_GPIO_CTS)
210 		ret |= TIOCM_CTS;
211 	if (r & LOCOMO_GPIO_DSR)
212 		ret |= TIOCM_DSR;
213 
214 	return ret;
215 }
216 
217 static struct sa1100_port_fns collie_port_fns __initdata = {
218 	.set_mctrl	= collie_uart_set_mctrl,
219 	.get_mctrl	= collie_uart_get_mctrl,
220 };
221 
222 static int collie_uart_probe(struct locomo_dev *dev)
223 {
224 	return 0;
225 }
226 
227 static struct locomo_driver collie_uart_driver = {
228 	.drv = {
229 		.name = "collie_uart",
230 	},
231 	.devid	= LOCOMO_DEVID_UART,
232 	.probe	= collie_uart_probe,
233 };
234 
235 static int __init collie_uart_init(void)
236 {
237 	return locomo_driver_register(&collie_uart_driver);
238 }
239 device_initcall(collie_uart_init);
240 
241 #endif
242 
243 
244 static struct resource locomo_resources[] = {
245 	[0] = DEFINE_RES_MEM(0x40000000, SZ_8K),
246 	[1] = DEFINE_RES_IRQ(IRQ_GPIO25),
247 };
248 
249 static struct locomo_platform_data locomo_info = {
250 	.irq_base	= IRQ_BOARD_START,
251 };
252 
253 struct platform_device collie_locomo_device = {
254 	.name		= "locomo",
255 	.id		= 0,
256 	.dev		= {
257 		.platform_data	= &locomo_info,
258 	},
259 	.num_resources	= ARRAY_SIZE(locomo_resources),
260 	.resource	= locomo_resources,
261 };
262 
263 static struct gpio_keys_button collie_gpio_keys[] = {
264 	{
265 		.type	= EV_PWR,
266 		.code	= KEY_RESERVED,
267 		.gpio	= COLLIE_GPIO_ON_KEY,
268 		.desc	= "On key",
269 		.wakeup	= 1,
270 		.active_low = 1,
271 	},
272 	{
273 		.type	= EV_PWR,
274 		.code	= KEY_WAKEUP,
275 		.gpio	= COLLIE_GPIO_WAKEUP,
276 		.desc	= "Sync",
277 		.wakeup = 1,
278 		.active_low = 1,
279 	},
280 };
281 
282 static struct gpio_keys_platform_data collie_gpio_keys_data = {
283 	.buttons	= collie_gpio_keys,
284 	.nbuttons	= ARRAY_SIZE(collie_gpio_keys),
285 };
286 
287 static struct platform_device collie_gpio_keys_device = {
288 	.name	= "gpio-keys",
289 	.id	= -1,
290 	.dev	= {
291 		.platform_data = &collie_gpio_keys_data,
292 	},
293 };
294 
295 static struct platform_device *devices[] __initdata = {
296 	&collie_locomo_device,
297 	&colliescoop_device,
298 	&collie_power_device,
299 	&collie_gpio_keys_device,
300 };
301 
302 static struct mtd_partition collie_partitions[] = {
303 	{
304 		.name		= "bootloader",
305 		.offset 	= 0,
306 		.size		= 0x000C0000,
307 		.mask_flags	= MTD_WRITEABLE
308 	}, {
309 		.name		= "kernel",
310 		.offset 	= MTDPART_OFS_APPEND,
311 		.size		= 0x00100000,
312 	}, {
313 		.name		= "rootfs",
314 		.offset 	= MTDPART_OFS_APPEND,
315 		.size		= 0x00e20000,
316 	}, {
317 		.name		= "bootblock",
318 		.offset		= MTDPART_OFS_APPEND,
319 		.size		= 0x00020000,
320 		.mask_flags	= MTD_WRITEABLE
321 	}
322 };
323 
324 static int collie_flash_init(void)
325 {
326 	int rc = gpio_request(COLLIE_GPIO_VPEN, "flash Vpp enable");
327 	if (rc)
328 		return rc;
329 
330 	rc = gpio_direction_output(COLLIE_GPIO_VPEN, 1);
331 	if (rc)
332 		gpio_free(COLLIE_GPIO_VPEN);
333 
334 	return rc;
335 }
336 
337 static void collie_set_vpp(int vpp)
338 {
339 	gpio_set_value(COLLIE_GPIO_VPEN, vpp);
340 }
341 
342 static void collie_flash_exit(void)
343 {
344 	gpio_free(COLLIE_GPIO_VPEN);
345 }
346 
347 static struct flash_platform_data collie_flash_data = {
348 	.map_name	= "cfi_probe",
349 	.init		= collie_flash_init,
350 	.set_vpp	= collie_set_vpp,
351 	.exit		= collie_flash_exit,
352 	.parts		= collie_partitions,
353 	.nr_parts	= ARRAY_SIZE(collie_partitions),
354 };
355 
356 static struct resource collie_flash_resources[] = {
357 	DEFINE_RES_MEM(SA1100_CS0_PHYS, SZ_32M),
358 };
359 
360 static struct sa1100fb_mach_info collie_lcd_info = {
361 	.pixclock	= 171521,	.bpp		= 16,
362 	.xres		= 320,		.yres		= 240,
363 
364 	.hsync_len	= 5,		.vsync_len	= 1,
365 	.left_margin	= 11,		.upper_margin	= 2,
366 	.right_margin	= 30,		.lower_margin	= 0,
367 
368 	.sync		= FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
369 
370 	.lccr0		= LCCR0_Color | LCCR0_Sngl | LCCR0_Act,
371 	.lccr3		= LCCR3_OutEnH | LCCR3_PixRsEdg | LCCR3_ACBsDiv(2),
372 
373 #ifdef CONFIG_BACKLIGHT_LOCOMO
374 	.lcd_power	= locomolcd_power
375 #endif
376 };
377 
378 static void __init collie_init(void)
379 {
380 	int ret = 0;
381 
382 	/* cpu initialize */
383 	GAFR = GPIO_SSP_TXD | GPIO_SSP_SCLK | GPIO_SSP_SFRM | GPIO_SSP_CLK |
384 		GPIO_MCP_CLK | GPIO_32_768kHz;
385 
386 	GPDR = GPIO_LDD8 | GPIO_LDD9 | GPIO_LDD10 | GPIO_LDD11 | GPIO_LDD12 |
387 		GPIO_LDD13 | GPIO_LDD14 | GPIO_LDD15 | GPIO_SSP_TXD |
388 		GPIO_SSP_SCLK | GPIO_SSP_SFRM | GPIO_SDLC_SCLK |
389 		_COLLIE_GPIO_UCB1x00_RESET | _COLLIE_GPIO_nMIC_ON |
390 		_COLLIE_GPIO_nREMOCON_ON | GPIO_32_768kHz;
391 
392 	PPDR = PPC_LDD0 | PPC_LDD1 | PPC_LDD2 | PPC_LDD3 | PPC_LDD4 | PPC_LDD5 |
393 		PPC_LDD6 | PPC_LDD7 | PPC_L_PCLK | PPC_L_LCLK | PPC_L_FCLK | PPC_L_BIAS |
394 		PPC_TXD1 | PPC_TXD2 | PPC_TXD3 | PPC_TXD4 | PPC_SCLK | PPC_SFRM;
395 
396 	PWER = 0;
397 
398 	PGSR = _COLLIE_GPIO_nREMOCON_ON;
399 
400 	PSDR = PPC_RXD1 | PPC_RXD2 | PPC_RXD3 | PPC_RXD4;
401 
402 	PCFR = PCFR_OPDE;
403 
404 	GPSR |= _COLLIE_GPIO_UCB1x00_RESET;
405 
406 	sa11x0_ppc_configure_mcp();
407 
408 
409 	platform_scoop_config = &collie_pcmcia_config;
410 
411 	gpiod_add_lookup_table(&collie_power_gpiod_table);
412 	gpiod_add_lookup_table(&collie_battery_gpiod_table);
413 
414 	ret = platform_add_devices(devices, ARRAY_SIZE(devices));
415 	if (ret) {
416 		printk(KERN_WARNING "collie: Unable to register LoCoMo device\n");
417 	}
418 
419 	sa11x0_register_lcd(&collie_lcd_info);
420 	sa11x0_register_mtd(&collie_flash_data, collie_flash_resources,
421 			    ARRAY_SIZE(collie_flash_resources));
422 	sa11x0_register_mcp(&collie_mcp_data);
423 	sa11x0_register_irda(&collie_ir_data);
424 
425 	sharpsl_save_param();
426 }
427 
428 static struct map_desc collie_io_desc[] __initdata = {
429 	{	/* 32M main flash (cs0) */
430 		.virtual	= 0xe8000000,
431 		.pfn		= __phys_to_pfn(0x00000000),
432 		.length		= 0x02000000,
433 		.type		= MT_DEVICE
434 	}, {	/* 32M boot flash (cs1) */
435 		.virtual	= 0xea000000,
436 		.pfn		= __phys_to_pfn(0x08000000),
437 		.length		= 0x02000000,
438 		.type		= MT_DEVICE
439 	}
440 };
441 
442 static void __init collie_map_io(void)
443 {
444 	sa1100_map_io();
445 	iotable_init(collie_io_desc, ARRAY_SIZE(collie_io_desc));
446 
447 #ifdef CONFIG_SHARP_LOCOMO
448 	sa1100_register_uart_fns(&collie_port_fns);
449 #endif
450 	sa1100_register_uart(0, 3);
451 	sa1100_register_uart(1, 1);
452 }
453 
454 MACHINE_START(COLLIE, "Sharp-Collie")
455 	.map_io		= collie_map_io,
456 	.nr_irqs	= SA1100_NR_IRQS,
457 	.init_irq	= sa1100_init_irq,
458 	.init_time	= sa1100_timer_init,
459 	.init_machine	= collie_init,
460 	.init_late	= sa11x0_init_late,
461 	.restart	= sa11x0_restart,
462 MACHINE_END
463