xref: /openbmc/linux/arch/arm/mach-sa1100/collie.c (revision 6c9111bc) 
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 static int collie_ir_startup(struct device *dev)
102 {
103 	int rc = gpio_request(COLLIE_GPIO_IR_ON, "IrDA");
104 	if (rc)
105 		return rc;
106 	rc = gpio_direction_output(COLLIE_GPIO_IR_ON, 1);
107 
108 	if (!rc)
109 		return 0;
110 
111 	gpio_free(COLLIE_GPIO_IR_ON);
112 	return rc;
113 }
114 
115 static void collie_ir_shutdown(struct device *dev)
116 {
117 	gpio_free(COLLIE_GPIO_IR_ON);
118 }
119 
120 static int collie_ir_set_power(struct device *dev, unsigned int state)
121 {
122 	gpio_set_value(COLLIE_GPIO_IR_ON, !state);
123 	return 0;
124 }
125 
126 static struct irda_platform_data collie_ir_data = {
127 	.startup = collie_ir_startup,
128 	.shutdown = collie_ir_shutdown,
129 	.set_power = collie_ir_set_power,
130 };
131 
132 /*
133  * Collie AC IN
134  */
135 static struct gpiod_lookup_table collie_power_gpiod_table = {
136 	.dev_id = "gpio-charger",
137 	.table = {
138 		GPIO_LOOKUP("gpio", COLLIE_GPIO_AC_IN,
139 			    NULL, GPIO_ACTIVE_HIGH),
140 		{ },
141 	},
142 };
143 
144 static char *collie_ac_supplied_to[] = {
145 	"main-battery",
146 	"backup-battery",
147 };
148 
149 static struct gpio_charger_platform_data collie_power_data = {
150 	.name			= "charger",
151 	.type			= POWER_SUPPLY_TYPE_MAINS,
152 	.supplied_to		= collie_ac_supplied_to,
153 	.num_supplicants	= ARRAY_SIZE(collie_ac_supplied_to),
154 };
155 
156 static struct platform_device collie_power_device = {
157 	.name			= "gpio-charger",
158 	.id			= -1,
159 	.dev.platform_data	= &collie_power_data,
160 };
161 
162 #ifdef CONFIG_SHARP_LOCOMO
163 /*
164  * low-level UART features.
165  */
166 struct platform_device collie_locomo_device;
167 
168 static void collie_uart_set_mctrl(struct uart_port *port, u_int mctrl)
169 {
170 	if (mctrl & TIOCM_RTS)
171 		locomo_gpio_write(&collie_locomo_device.dev, LOCOMO_GPIO_RTS, 0);
172 	else
173 		locomo_gpio_write(&collie_locomo_device.dev, LOCOMO_GPIO_RTS, 1);
174 
175 	if (mctrl & TIOCM_DTR)
176 		locomo_gpio_write(&collie_locomo_device.dev, LOCOMO_GPIO_DTR, 0);
177 	else
178 		locomo_gpio_write(&collie_locomo_device.dev, LOCOMO_GPIO_DTR, 1);
179 }
180 
181 static u_int collie_uart_get_mctrl(struct uart_port *port)
182 {
183 	int ret = TIOCM_CD;
184 	unsigned int r;
185 
186 	r = locomo_gpio_read_output(&collie_locomo_device.dev, LOCOMO_GPIO_CTS & LOCOMO_GPIO_DSR);
187 	if (r == -ENODEV)
188 		return ret;
189 	if (r & LOCOMO_GPIO_CTS)
190 		ret |= TIOCM_CTS;
191 	if (r & LOCOMO_GPIO_DSR)
192 		ret |= TIOCM_DSR;
193 
194 	return ret;
195 }
196 
197 static struct sa1100_port_fns collie_port_fns __initdata = {
198 	.set_mctrl	= collie_uart_set_mctrl,
199 	.get_mctrl	= collie_uart_get_mctrl,
200 };
201 
202 static int collie_uart_probe(struct locomo_dev *dev)
203 {
204 	return 0;
205 }
206 
207 static int collie_uart_remove(struct locomo_dev *dev)
208 {
209 	return 0;
210 }
211 
212 static struct locomo_driver collie_uart_driver = {
213 	.drv = {
214 		.name = "collie_uart",
215 	},
216 	.devid	= LOCOMO_DEVID_UART,
217 	.probe	= collie_uart_probe,
218 	.remove	= collie_uart_remove,
219 };
220 
221 static int __init collie_uart_init(void)
222 {
223 	return locomo_driver_register(&collie_uart_driver);
224 }
225 device_initcall(collie_uart_init);
226 
227 #endif
228 
229 
230 static struct resource locomo_resources[] = {
231 	[0] = DEFINE_RES_MEM(0x40000000, SZ_8K),
232 	[1] = DEFINE_RES_IRQ(IRQ_GPIO25),
233 };
234 
235 static struct locomo_platform_data locomo_info = {
236 	.irq_base	= IRQ_BOARD_START,
237 };
238 
239 struct platform_device collie_locomo_device = {
240 	.name		= "locomo",
241 	.id		= 0,
242 	.dev		= {
243 		.platform_data	= &locomo_info,
244 	},
245 	.num_resources	= ARRAY_SIZE(locomo_resources),
246 	.resource	= locomo_resources,
247 };
248 
249 static struct gpio_keys_button collie_gpio_keys[] = {
250 	{
251 		.type	= EV_PWR,
252 		.code	= KEY_RESERVED,
253 		.gpio	= COLLIE_GPIO_ON_KEY,
254 		.desc	= "On key",
255 		.wakeup	= 1,
256 		.active_low = 1,
257 	},
258 	{
259 		.type	= EV_PWR,
260 		.code	= KEY_WAKEUP,
261 		.gpio	= COLLIE_GPIO_WAKEUP,
262 		.desc	= "Sync",
263 		.wakeup = 1,
264 		.active_low = 1,
265 	},
266 };
267 
268 static struct gpio_keys_platform_data collie_gpio_keys_data = {
269 	.buttons	= collie_gpio_keys,
270 	.nbuttons	= ARRAY_SIZE(collie_gpio_keys),
271 };
272 
273 static struct platform_device collie_gpio_keys_device = {
274 	.name	= "gpio-keys",
275 	.id	= -1,
276 	.dev	= {
277 		.platform_data = &collie_gpio_keys_data,
278 	},
279 };
280 
281 static struct platform_device *devices[] __initdata = {
282 	&collie_locomo_device,
283 	&colliescoop_device,
284 	&collie_power_device,
285 	&collie_gpio_keys_device,
286 };
287 
288 static struct mtd_partition collie_partitions[] = {
289 	{
290 		.name		= "bootloader",
291 		.offset 	= 0,
292 		.size		= 0x000C0000,
293 		.mask_flags	= MTD_WRITEABLE
294 	}, {
295 		.name		= "kernel",
296 		.offset 	= MTDPART_OFS_APPEND,
297 		.size		= 0x00100000,
298 	}, {
299 		.name		= "rootfs",
300 		.offset 	= MTDPART_OFS_APPEND,
301 		.size		= 0x00e20000,
302 	}, {
303 		.name		= "bootblock",
304 		.offset		= MTDPART_OFS_APPEND,
305 		.size		= 0x00020000,
306 		.mask_flags	= MTD_WRITEABLE
307 	}
308 };
309 
310 static int collie_flash_init(void)
311 {
312 	int rc = gpio_request(COLLIE_GPIO_VPEN, "flash Vpp enable");
313 	if (rc)
314 		return rc;
315 
316 	rc = gpio_direction_output(COLLIE_GPIO_VPEN, 1);
317 	if (rc)
318 		gpio_free(COLLIE_GPIO_VPEN);
319 
320 	return rc;
321 }
322 
323 static void collie_set_vpp(int vpp)
324 {
325 	gpio_set_value(COLLIE_GPIO_VPEN, vpp);
326 }
327 
328 static void collie_flash_exit(void)
329 {
330 	gpio_free(COLLIE_GPIO_VPEN);
331 }
332 
333 static struct flash_platform_data collie_flash_data = {
334 	.map_name	= "cfi_probe",
335 	.init		= collie_flash_init,
336 	.set_vpp	= collie_set_vpp,
337 	.exit		= collie_flash_exit,
338 	.parts		= collie_partitions,
339 	.nr_parts	= ARRAY_SIZE(collie_partitions),
340 };
341 
342 static struct resource collie_flash_resources[] = {
343 	DEFINE_RES_MEM(SA1100_CS0_PHYS, SZ_32M),
344 };
345 
346 static struct sa1100fb_mach_info collie_lcd_info = {
347 	.pixclock	= 171521,	.bpp		= 16,
348 	.xres		= 320,		.yres		= 240,
349 
350 	.hsync_len	= 5,		.vsync_len	= 1,
351 	.left_margin	= 11,		.upper_margin	= 2,
352 	.right_margin	= 30,		.lower_margin	= 0,
353 
354 	.sync		= FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
355 
356 	.lccr0		= LCCR0_Color | LCCR0_Sngl | LCCR0_Act,
357 	.lccr3		= LCCR3_OutEnH | LCCR3_PixRsEdg | LCCR3_ACBsDiv(2),
358 
359 #ifdef CONFIG_BACKLIGHT_LOCOMO
360 	.lcd_power	= locomolcd_power
361 #endif
362 };
363 
364 static void __init collie_init(void)
365 {
366 	int ret = 0;
367 
368 	/* cpu initialize */
369 	GAFR = GPIO_SSP_TXD | GPIO_SSP_SCLK | GPIO_SSP_SFRM | GPIO_SSP_CLK |
370 		GPIO_MCP_CLK | GPIO_32_768kHz;
371 
372 	GPDR = GPIO_LDD8 | GPIO_LDD9 | GPIO_LDD10 | GPIO_LDD11 | GPIO_LDD12 |
373 		GPIO_LDD13 | GPIO_LDD14 | GPIO_LDD15 | GPIO_SSP_TXD |
374 		GPIO_SSP_SCLK | GPIO_SSP_SFRM | GPIO_SDLC_SCLK |
375 		_COLLIE_GPIO_UCB1x00_RESET | _COLLIE_GPIO_nMIC_ON |
376 		_COLLIE_GPIO_nREMOCON_ON | GPIO_32_768kHz;
377 
378 	PPDR = PPC_LDD0 | PPC_LDD1 | PPC_LDD2 | PPC_LDD3 | PPC_LDD4 | PPC_LDD5 |
379 		PPC_LDD6 | PPC_LDD7 | PPC_L_PCLK | PPC_L_LCLK | PPC_L_FCLK | PPC_L_BIAS |
380 		PPC_TXD1 | PPC_TXD2 | PPC_TXD3 | PPC_TXD4 | PPC_SCLK | PPC_SFRM;
381 
382 	PWER = 0;
383 
384 	PGSR = _COLLIE_GPIO_nREMOCON_ON;
385 
386 	PSDR = PPC_RXD1 | PPC_RXD2 | PPC_RXD3 | PPC_RXD4;
387 
388 	PCFR = PCFR_OPDE;
389 
390 	GPSR |= _COLLIE_GPIO_UCB1x00_RESET;
391 
392 	sa11x0_ppc_configure_mcp();
393 
394 
395 	platform_scoop_config = &collie_pcmcia_config;
396 
397 	gpiod_add_lookup_table(&collie_power_gpiod_table);
398 
399 	ret = platform_add_devices(devices, ARRAY_SIZE(devices));
400 	if (ret) {
401 		printk(KERN_WARNING "collie: Unable to register LoCoMo device\n");
402 	}
403 
404 	sa11x0_register_lcd(&collie_lcd_info);
405 	sa11x0_register_mtd(&collie_flash_data, collie_flash_resources,
406 			    ARRAY_SIZE(collie_flash_resources));
407 	sa11x0_register_mcp(&collie_mcp_data);
408 	sa11x0_register_irda(&collie_ir_data);
409 
410 	sharpsl_save_param();
411 }
412 
413 static struct map_desc collie_io_desc[] __initdata = {
414 	{	/* 32M main flash (cs0) */
415 		.virtual	= 0xe8000000,
416 		.pfn		= __phys_to_pfn(0x00000000),
417 		.length		= 0x02000000,
418 		.type		= MT_DEVICE
419 	}, {	/* 32M boot flash (cs1) */
420 		.virtual	= 0xea000000,
421 		.pfn		= __phys_to_pfn(0x08000000),
422 		.length		= 0x02000000,
423 		.type		= MT_DEVICE
424 	}
425 };
426 
427 static void __init collie_map_io(void)
428 {
429 	sa1100_map_io();
430 	iotable_init(collie_io_desc, ARRAY_SIZE(collie_io_desc));
431 
432 #ifdef CONFIG_SHARP_LOCOMO
433 	sa1100_register_uart_fns(&collie_port_fns);
434 #endif
435 	sa1100_register_uart(0, 3);
436 	sa1100_register_uart(1, 1);
437 }
438 
439 MACHINE_START(COLLIE, "Sharp-Collie")
440 	.map_io		= collie_map_io,
441 	.nr_irqs	= SA1100_NR_IRQS,
442 	.init_irq	= sa1100_init_irq,
443 	.init_time	= sa1100_timer_init,
444 	.init_machine	= collie_init,
445 	.init_late	= sa11x0_init_late,
446 	.restart	= sa11x0_restart,
447 MACHINE_END
448