xref: /openbmc/linux/arch/arm/mach-sa1100/collie.c (revision 1ff45e6d)
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 
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 /* Battery management GPIOs */
101 static struct gpiod_lookup_table collie_battery_gpiod_table = {
102 	/* the MCP codec mcp0 has the ucb1x00 as attached device */
103 	.dev_id = "ucb1x00",
104 	.table = {
105 		/* This is found on the main GPIO on the SA1100 */
106 		GPIO_LOOKUP("gpio", COLLIE_GPIO_CO,
107 			    "main battery full", GPIO_ACTIVE_HIGH),
108 		GPIO_LOOKUP("gpio", COLLIE_GPIO_MAIN_BAT_LOW,
109 			    "main battery low", GPIO_ACTIVE_HIGH),
110 		/*
111 		 * This is GPIO 0 on the Scoop expander, which is registered
112 		 * from common/scoop.c with this gpio chip label.
113 		 */
114 		GPIO_LOOKUP("sharp-scoop", 0,
115 			    "main charge on", GPIO_ACTIVE_HIGH),
116 		{ },
117 	},
118 };
119 
120 /*
121  * Collie AC IN
122  */
123 static struct gpiod_lookup_table collie_power_gpiod_table = {
124 	.dev_id = "gpio-charger",
125 	.table = {
126 		GPIO_LOOKUP("gpio", COLLIE_GPIO_AC_IN,
127 			    NULL, GPIO_ACTIVE_HIGH),
128 		{ },
129 	},
130 };
131 
132 static char *collie_ac_supplied_to[] = {
133 	"main-battery",
134 	"backup-battery",
135 };
136 
137 static struct gpio_charger_platform_data collie_power_data = {
138 	.name			= "charger",
139 	.type			= POWER_SUPPLY_TYPE_MAINS,
140 	.supplied_to		= collie_ac_supplied_to,
141 	.num_supplicants	= ARRAY_SIZE(collie_ac_supplied_to),
142 };
143 
144 static struct platform_device collie_power_device = {
145 	.name			= "gpio-charger",
146 	.id			= -1,
147 	.dev.platform_data	= &collie_power_data,
148 };
149 
150 #ifdef CONFIG_SHARP_LOCOMO
151 /*
152  * low-level UART features.
153  */
154 struct platform_device collie_locomo_device;
155 
collie_uart_set_mctrl(struct uart_port * port,u_int mctrl)156 static void collie_uart_set_mctrl(struct uart_port *port, u_int mctrl)
157 {
158 	if (mctrl & TIOCM_RTS)
159 		locomo_gpio_write(&collie_locomo_device.dev, LOCOMO_GPIO_RTS, 0);
160 	else
161 		locomo_gpio_write(&collie_locomo_device.dev, LOCOMO_GPIO_RTS, 1);
162 
163 	if (mctrl & TIOCM_DTR)
164 		locomo_gpio_write(&collie_locomo_device.dev, LOCOMO_GPIO_DTR, 0);
165 	else
166 		locomo_gpio_write(&collie_locomo_device.dev, LOCOMO_GPIO_DTR, 1);
167 }
168 
collie_uart_get_mctrl(struct uart_port * port)169 static u_int collie_uart_get_mctrl(struct uart_port *port)
170 {
171 	int ret = TIOCM_CD;
172 	unsigned int r;
173 
174 	r = locomo_gpio_read_output(&collie_locomo_device.dev, LOCOMO_GPIO_CTS & LOCOMO_GPIO_DSR);
175 	if (r == -ENODEV)
176 		return ret;
177 	if (r & LOCOMO_GPIO_CTS)
178 		ret |= TIOCM_CTS;
179 	if (r & LOCOMO_GPIO_DSR)
180 		ret |= TIOCM_DSR;
181 
182 	return ret;
183 }
184 
185 static struct sa1100_port_fns collie_port_fns __initdata = {
186 	.set_mctrl	= collie_uart_set_mctrl,
187 	.get_mctrl	= collie_uart_get_mctrl,
188 };
189 
collie_uart_probe(struct locomo_dev * dev)190 static int collie_uart_probe(struct locomo_dev *dev)
191 {
192 	return 0;
193 }
194 
195 static struct locomo_driver collie_uart_driver = {
196 	.drv = {
197 		.name = "collie_uart",
198 	},
199 	.devid	= LOCOMO_DEVID_UART,
200 	.probe	= collie_uart_probe,
201 };
202 
collie_uart_init(void)203 static int __init collie_uart_init(void)
204 {
205 	return locomo_driver_register(&collie_uart_driver);
206 }
207 device_initcall(collie_uart_init);
208 
209 #endif
210 
211 
212 static struct resource locomo_resources[] = {
213 	[0] = DEFINE_RES_MEM(0x40000000, SZ_8K),
214 	[1] = DEFINE_RES_IRQ(IRQ_GPIO25),
215 };
216 
217 static struct locomo_platform_data locomo_info = {
218 	.irq_base	= IRQ_BOARD_START,
219 };
220 
221 struct platform_device collie_locomo_device = {
222 	.name		= "locomo",
223 	.id		= 0,
224 	.dev		= {
225 		.platform_data	= &locomo_info,
226 	},
227 	.num_resources	= ARRAY_SIZE(locomo_resources),
228 	.resource	= locomo_resources,
229 };
230 
231 static struct gpio_keys_button collie_gpio_keys[] = {
232 	{
233 		.type	= EV_PWR,
234 		.code	= KEY_RESERVED,
235 		.gpio	= COLLIE_GPIO_ON_KEY,
236 		.desc	= "On key",
237 		.wakeup	= 1,
238 		.active_low = 1,
239 	},
240 	{
241 		.type	= EV_PWR,
242 		.code	= KEY_WAKEUP,
243 		.gpio	= COLLIE_GPIO_WAKEUP,
244 		.desc	= "Sync",
245 		.wakeup = 1,
246 		.active_low = 1,
247 	},
248 };
249 
250 static struct gpio_keys_platform_data collie_gpio_keys_data = {
251 	.buttons	= collie_gpio_keys,
252 	.nbuttons	= ARRAY_SIZE(collie_gpio_keys),
253 };
254 
255 static struct platform_device collie_gpio_keys_device = {
256 	.name	= "gpio-keys",
257 	.id	= -1,
258 	.dev	= {
259 		.platform_data = &collie_gpio_keys_data,
260 	},
261 };
262 
263 static struct platform_device *devices[] __initdata = {
264 	&collie_locomo_device,
265 	&colliescoop_device,
266 	&collie_power_device,
267 	&collie_gpio_keys_device,
268 };
269 
270 static struct mtd_partition collie_partitions[] = {
271 	{
272 		.name		= "bootloader",
273 		.offset 	= 0,
274 		.size		= 0x000C0000,
275 		.mask_flags	= MTD_WRITEABLE
276 	}, {
277 		.name		= "kernel",
278 		.offset 	= MTDPART_OFS_APPEND,
279 		.size		= 0x00100000,
280 	}, {
281 		.name		= "rootfs",
282 		.offset 	= MTDPART_OFS_APPEND,
283 		.size		= 0x00e20000,
284 	}, {
285 		.name		= "bootblock",
286 		.offset		= MTDPART_OFS_APPEND,
287 		.size		= 0x00020000,
288 		.mask_flags	= MTD_WRITEABLE
289 	}
290 };
291 
collie_flash_init(void)292 static int collie_flash_init(void)
293 {
294 	int rc = gpio_request(COLLIE_GPIO_VPEN, "flash Vpp enable");
295 	if (rc)
296 		return rc;
297 
298 	rc = gpio_direction_output(COLLIE_GPIO_VPEN, 1);
299 	if (rc)
300 		gpio_free(COLLIE_GPIO_VPEN);
301 
302 	return rc;
303 }
304 
collie_set_vpp(int vpp)305 static void collie_set_vpp(int vpp)
306 {
307 	gpio_set_value(COLLIE_GPIO_VPEN, vpp);
308 }
309 
collie_flash_exit(void)310 static void collie_flash_exit(void)
311 {
312 	gpio_free(COLLIE_GPIO_VPEN);
313 }
314 
315 static struct flash_platform_data collie_flash_data = {
316 	.map_name	= "cfi_probe",
317 	.init		= collie_flash_init,
318 	.set_vpp	= collie_set_vpp,
319 	.exit		= collie_flash_exit,
320 	.parts		= collie_partitions,
321 	.nr_parts	= ARRAY_SIZE(collie_partitions),
322 };
323 
324 static struct resource collie_flash_resources[] = {
325 	DEFINE_RES_MEM(SA1100_CS0_PHYS, SZ_32M),
326 };
327 
328 static struct sa1100fb_mach_info collie_lcd_info = {
329 	.pixclock	= 171521,	.bpp		= 16,
330 	.xres		= 320,		.yres		= 240,
331 
332 	.hsync_len	= 5,		.vsync_len	= 1,
333 	.left_margin	= 11,		.upper_margin	= 2,
334 	.right_margin	= 30,		.lower_margin	= 0,
335 
336 	.sync		= FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
337 
338 	.lccr0		= LCCR0_Color | LCCR0_Sngl | LCCR0_Act,
339 	.lccr3		= LCCR3_OutEnH | LCCR3_PixRsEdg | LCCR3_ACBsDiv(2),
340 
341 #ifdef CONFIG_BACKLIGHT_LOCOMO
342 	.lcd_power	= locomolcd_power
343 #endif
344 };
345 
collie_init(void)346 static void __init collie_init(void)
347 {
348 	int ret = 0;
349 
350 	/* cpu initialize */
351 	GAFR = GPIO_SSP_TXD | GPIO_SSP_SCLK | GPIO_SSP_SFRM | GPIO_SSP_CLK |
352 		GPIO_MCP_CLK | GPIO_32_768kHz;
353 
354 	GPDR = GPIO_LDD8 | GPIO_LDD9 | GPIO_LDD10 | GPIO_LDD11 | GPIO_LDD12 |
355 		GPIO_LDD13 | GPIO_LDD14 | GPIO_LDD15 | GPIO_SSP_TXD |
356 		GPIO_SSP_SCLK | GPIO_SSP_SFRM | GPIO_SDLC_SCLK |
357 		_COLLIE_GPIO_UCB1x00_RESET | _COLLIE_GPIO_nMIC_ON |
358 		_COLLIE_GPIO_nREMOCON_ON | GPIO_32_768kHz;
359 
360 	PPDR = PPC_LDD0 | PPC_LDD1 | PPC_LDD2 | PPC_LDD3 | PPC_LDD4 | PPC_LDD5 |
361 		PPC_LDD6 | PPC_LDD7 | PPC_L_PCLK | PPC_L_LCLK | PPC_L_FCLK | PPC_L_BIAS |
362 		PPC_TXD1 | PPC_TXD2 | PPC_TXD3 | PPC_TXD4 | PPC_SCLK | PPC_SFRM;
363 
364 	PWER = 0;
365 
366 	PGSR = _COLLIE_GPIO_nREMOCON_ON;
367 
368 	PSDR = PPC_RXD1 | PPC_RXD2 | PPC_RXD3 | PPC_RXD4;
369 
370 	PCFR = PCFR_OPDE;
371 
372 	GPSR |= _COLLIE_GPIO_UCB1x00_RESET;
373 
374 	sa11x0_ppc_configure_mcp();
375 
376 
377 	platform_scoop_config = &collie_pcmcia_config;
378 
379 	gpiod_add_lookup_table(&collie_power_gpiod_table);
380 	gpiod_add_lookup_table(&collie_battery_gpiod_table);
381 
382 	ret = platform_add_devices(devices, ARRAY_SIZE(devices));
383 	if (ret) {
384 		printk(KERN_WARNING "collie: Unable to register LoCoMo device\n");
385 	}
386 
387 	sa11x0_register_lcd(&collie_lcd_info);
388 	sa11x0_register_mtd(&collie_flash_data, collie_flash_resources,
389 			    ARRAY_SIZE(collie_flash_resources));
390 	sa11x0_register_mcp(&collie_mcp_data);
391 
392 	sharpsl_save_param();
393 }
394 
395 static struct map_desc collie_io_desc[] __initdata = {
396 	{	/* 32M main flash (cs0) */
397 		.virtual	= 0xe8000000,
398 		.pfn		= __phys_to_pfn(0x00000000),
399 		.length		= 0x02000000,
400 		.type		= MT_DEVICE
401 	}, {	/* 32M boot flash (cs1) */
402 		.virtual	= 0xea000000,
403 		.pfn		= __phys_to_pfn(0x08000000),
404 		.length		= 0x02000000,
405 		.type		= MT_DEVICE
406 	}
407 };
408 
collie_map_io(void)409 static void __init collie_map_io(void)
410 {
411 	sa1100_map_io();
412 	iotable_init(collie_io_desc, ARRAY_SIZE(collie_io_desc));
413 
414 #ifdef CONFIG_SHARP_LOCOMO
415 	sa1100_register_uart_fns(&collie_port_fns);
416 #endif
417 	sa1100_register_uart(0, 3);
418 	sa1100_register_uart(1, 1);
419 }
420 
421 MACHINE_START(COLLIE, "Sharp-Collie")
422 	.map_io		= collie_map_io,
423 	.nr_irqs	= SA1100_NR_IRQS,
424 	.init_irq	= sa1100_init_irq,
425 	.init_time	= sa1100_timer_init,
426 	.init_machine	= collie_init,
427 	.init_late	= sa11x0_init_late,
428 	.restart	= sa11x0_restart,
429 MACHINE_END
430