xref: /openbmc/linux/arch/arm/mach-sa1100/collie.c (revision 55fd7e02) 
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/power/gpio-charger.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 <linux/platform_data/irda-sa11x0.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 char *collie_ac_supplied_to[] = {
135 	"main-battery",
136 	"backup-battery",
137 };
138 
139 
140 static struct gpio_charger_platform_data collie_power_data = {
141 	.name			= "charger",
142 	.type			= POWER_SUPPLY_TYPE_MAINS,
143 	.gpio			= COLLIE_GPIO_AC_IN,
144 	.supplied_to		= collie_ac_supplied_to,
145 	.num_supplicants	= ARRAY_SIZE(collie_ac_supplied_to),
146 };
147 
148 static struct platform_device collie_power_device = {
149 	.name			= "gpio-charger",
150 	.id			= -1,
151 	.dev.platform_data	= &collie_power_data,
152 };
153 
154 #ifdef CONFIG_SHARP_LOCOMO
155 /*
156  * low-level UART features.
157  */
158 struct platform_device collie_locomo_device;
159 
160 static void collie_uart_set_mctrl(struct uart_port *port, u_int mctrl)
161 {
162 	if (mctrl & TIOCM_RTS)
163 		locomo_gpio_write(&collie_locomo_device.dev, LOCOMO_GPIO_RTS, 0);
164 	else
165 		locomo_gpio_write(&collie_locomo_device.dev, LOCOMO_GPIO_RTS, 1);
166 
167 	if (mctrl & TIOCM_DTR)
168 		locomo_gpio_write(&collie_locomo_device.dev, LOCOMO_GPIO_DTR, 0);
169 	else
170 		locomo_gpio_write(&collie_locomo_device.dev, LOCOMO_GPIO_DTR, 1);
171 }
172 
173 static u_int collie_uart_get_mctrl(struct uart_port *port)
174 {
175 	int ret = TIOCM_CD;
176 	unsigned int r;
177 
178 	r = locomo_gpio_read_output(&collie_locomo_device.dev, LOCOMO_GPIO_CTS & LOCOMO_GPIO_DSR);
179 	if (r == -ENODEV)
180 		return ret;
181 	if (r & LOCOMO_GPIO_CTS)
182 		ret |= TIOCM_CTS;
183 	if (r & LOCOMO_GPIO_DSR)
184 		ret |= TIOCM_DSR;
185 
186 	return ret;
187 }
188 
189 static struct sa1100_port_fns collie_port_fns __initdata = {
190 	.set_mctrl	= collie_uart_set_mctrl,
191 	.get_mctrl	= collie_uart_get_mctrl,
192 };
193 
194 static int collie_uart_probe(struct locomo_dev *dev)
195 {
196 	return 0;
197 }
198 
199 static int collie_uart_remove(struct locomo_dev *dev)
200 {
201 	return 0;
202 }
203 
204 static struct locomo_driver collie_uart_driver = {
205 	.drv = {
206 		.name = "collie_uart",
207 	},
208 	.devid	= LOCOMO_DEVID_UART,
209 	.probe	= collie_uart_probe,
210 	.remove	= collie_uart_remove,
211 };
212 
213 static int __init collie_uart_init(void)
214 {
215 	return locomo_driver_register(&collie_uart_driver);
216 }
217 device_initcall(collie_uart_init);
218 
219 #endif
220 
221 
222 static struct resource locomo_resources[] = {
223 	[0] = DEFINE_RES_MEM(0x40000000, SZ_8K),
224 	[1] = DEFINE_RES_IRQ(IRQ_GPIO25),
225 };
226 
227 static struct locomo_platform_data locomo_info = {
228 	.irq_base	= IRQ_BOARD_START,
229 };
230 
231 struct platform_device collie_locomo_device = {
232 	.name		= "locomo",
233 	.id		= 0,
234 	.dev		= {
235 		.platform_data	= &locomo_info,
236 	},
237 	.num_resources	= ARRAY_SIZE(locomo_resources),
238 	.resource	= locomo_resources,
239 };
240 
241 static struct gpio_keys_button collie_gpio_keys[] = {
242 	{
243 		.type	= EV_PWR,
244 		.code	= KEY_RESERVED,
245 		.gpio	= COLLIE_GPIO_ON_KEY,
246 		.desc	= "On key",
247 		.wakeup	= 1,
248 		.active_low = 1,
249 	},
250 	{
251 		.type	= EV_PWR,
252 		.code	= KEY_WAKEUP,
253 		.gpio	= COLLIE_GPIO_WAKEUP,
254 		.desc	= "Sync",
255 		.wakeup = 1,
256 		.active_low = 1,
257 	},
258 };
259 
260 static struct gpio_keys_platform_data collie_gpio_keys_data = {
261 	.buttons	= collie_gpio_keys,
262 	.nbuttons	= ARRAY_SIZE(collie_gpio_keys),
263 };
264 
265 static struct platform_device collie_gpio_keys_device = {
266 	.name	= "gpio-keys",
267 	.id	= -1,
268 	.dev	= {
269 		.platform_data = &collie_gpio_keys_data,
270 	},
271 };
272 
273 static struct platform_device *devices[] __initdata = {
274 	&collie_locomo_device,
275 	&colliescoop_device,
276 	&collie_power_device,
277 	&collie_gpio_keys_device,
278 };
279 
280 static struct mtd_partition collie_partitions[] = {
281 	{
282 		.name		= "bootloader",
283 		.offset 	= 0,
284 		.size		= 0x000C0000,
285 		.mask_flags	= MTD_WRITEABLE
286 	}, {
287 		.name		= "kernel",
288 		.offset 	= MTDPART_OFS_APPEND,
289 		.size		= 0x00100000,
290 	}, {
291 		.name		= "rootfs",
292 		.offset 	= MTDPART_OFS_APPEND,
293 		.size		= 0x00e20000,
294 	}, {
295 		.name		= "bootblock",
296 		.offset		= MTDPART_OFS_APPEND,
297 		.size		= 0x00020000,
298 		.mask_flags	= MTD_WRITEABLE
299 	}
300 };
301 
302 static int collie_flash_init(void)
303 {
304 	int rc = gpio_request(COLLIE_GPIO_VPEN, "flash Vpp enable");
305 	if (rc)
306 		return rc;
307 
308 	rc = gpio_direction_output(COLLIE_GPIO_VPEN, 1);
309 	if (rc)
310 		gpio_free(COLLIE_GPIO_VPEN);
311 
312 	return rc;
313 }
314 
315 static void collie_set_vpp(int vpp)
316 {
317 	gpio_set_value(COLLIE_GPIO_VPEN, vpp);
318 }
319 
320 static void collie_flash_exit(void)
321 {
322 	gpio_free(COLLIE_GPIO_VPEN);
323 }
324 
325 static struct flash_platform_data collie_flash_data = {
326 	.map_name	= "cfi_probe",
327 	.init		= collie_flash_init,
328 	.set_vpp	= collie_set_vpp,
329 	.exit		= collie_flash_exit,
330 	.parts		= collie_partitions,
331 	.nr_parts	= ARRAY_SIZE(collie_partitions),
332 };
333 
334 static struct resource collie_flash_resources[] = {
335 	DEFINE_RES_MEM(SA1100_CS0_PHYS, SZ_32M),
336 };
337 
338 static struct sa1100fb_mach_info collie_lcd_info = {
339 	.pixclock	= 171521,	.bpp		= 16,
340 	.xres		= 320,		.yres		= 240,
341 
342 	.hsync_len	= 5,		.vsync_len	= 1,
343 	.left_margin	= 11,		.upper_margin	= 2,
344 	.right_margin	= 30,		.lower_margin	= 0,
345 
346 	.sync		= FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
347 
348 	.lccr0		= LCCR0_Color | LCCR0_Sngl | LCCR0_Act,
349 	.lccr3		= LCCR3_OutEnH | LCCR3_PixRsEdg | LCCR3_ACBsDiv(2),
350 
351 #ifdef CONFIG_BACKLIGHT_LOCOMO
352 	.lcd_power	= locomolcd_power
353 #endif
354 };
355 
356 static void __init collie_init(void)
357 {
358 	int ret = 0;
359 
360 	/* cpu initialize */
361 	GAFR = GPIO_SSP_TXD | GPIO_SSP_SCLK | GPIO_SSP_SFRM | GPIO_SSP_CLK |
362 		GPIO_MCP_CLK | GPIO_32_768kHz;
363 
364 	GPDR = GPIO_LDD8 | GPIO_LDD9 | GPIO_LDD10 | GPIO_LDD11 | GPIO_LDD12 |
365 		GPIO_LDD13 | GPIO_LDD14 | GPIO_LDD15 | GPIO_SSP_TXD |
366 		GPIO_SSP_SCLK | GPIO_SSP_SFRM | GPIO_SDLC_SCLK |
367 		_COLLIE_GPIO_UCB1x00_RESET | _COLLIE_GPIO_nMIC_ON |
368 		_COLLIE_GPIO_nREMOCON_ON | GPIO_32_768kHz;
369 
370 	PPDR = PPC_LDD0 | PPC_LDD1 | PPC_LDD2 | PPC_LDD3 | PPC_LDD4 | PPC_LDD5 |
371 		PPC_LDD6 | PPC_LDD7 | PPC_L_PCLK | PPC_L_LCLK | PPC_L_FCLK | PPC_L_BIAS |
372 		PPC_TXD1 | PPC_TXD2 | PPC_TXD3 | PPC_TXD4 | PPC_SCLK | PPC_SFRM;
373 
374 	PWER = 0;
375 
376 	PGSR = _COLLIE_GPIO_nREMOCON_ON;
377 
378 	PSDR = PPC_RXD1 | PPC_RXD2 | PPC_RXD3 | PPC_RXD4;
379 
380 	PCFR = PCFR_OPDE;
381 
382 	GPSR |= _COLLIE_GPIO_UCB1x00_RESET;
383 
384 	sa11x0_ppc_configure_mcp();
385 
386 
387 	platform_scoop_config = &collie_pcmcia_config;
388 
389 	ret = platform_add_devices(devices, ARRAY_SIZE(devices));
390 	if (ret) {
391 		printk(KERN_WARNING "collie: Unable to register LoCoMo device\n");
392 	}
393 
394 	sa11x0_register_lcd(&collie_lcd_info);
395 	sa11x0_register_mtd(&collie_flash_data, collie_flash_resources,
396 			    ARRAY_SIZE(collie_flash_resources));
397 	sa11x0_register_mcp(&collie_mcp_data);
398 	sa11x0_register_irda(&collie_ir_data);
399 
400 	sharpsl_save_param();
401 }
402 
403 static struct map_desc collie_io_desc[] __initdata = {
404 	{	/* 32M main flash (cs0) */
405 		.virtual	= 0xe8000000,
406 		.pfn		= __phys_to_pfn(0x00000000),
407 		.length		= 0x02000000,
408 		.type		= MT_DEVICE
409 	}, {	/* 32M boot flash (cs1) */
410 		.virtual	= 0xea000000,
411 		.pfn		= __phys_to_pfn(0x08000000),
412 		.length		= 0x02000000,
413 		.type		= MT_DEVICE
414 	}
415 };
416 
417 static void __init collie_map_io(void)
418 {
419 	sa1100_map_io();
420 	iotable_init(collie_io_desc, ARRAY_SIZE(collie_io_desc));
421 
422 #ifdef CONFIG_SHARP_LOCOMO
423 	sa1100_register_uart_fns(&collie_port_fns);
424 #endif
425 	sa1100_register_uart(0, 3);
426 	sa1100_register_uart(1, 1);
427 }
428 
429 MACHINE_START(COLLIE, "Sharp-Collie")
430 	.map_io		= collie_map_io,
431 	.nr_irqs	= SA1100_NR_IRQS,
432 	.init_irq	= sa1100_init_irq,
433 	.init_time	= sa1100_timer_init,
434 	.init_machine	= collie_init,
435 	.init_late	= sa11x0_init_late,
436 	.restart	= sa11x0_restart,
437 MACHINE_END
438