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
56static struct resource collie_scoop_resources[] = {
57	[0] = DEFINE_RES_MEM(0x40800000, SZ_4K),
58};
59
60static 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
66struct 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
76static 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
85static struct scoop_pcmcia_config collie_pcmcia_config = {
86	.devs		= &collie_pcmcia_scoop[0],
87	.num_devs	= 1,
88};
89
90static struct ucb1x00_plat_data collie_ucb1x00_data = {
91	.gpio_base	= COLLIE_TC35143_GPIO_BASE,
92};
93
94static 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
100static 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
114static void collie_ir_shutdown(struct device *dev)
115{
116	gpio_free(COLLIE_GPIO_IR_ON);
117}
118
119static 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
125static 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 */
134static char *collie_ac_supplied_to[] = {
135	"main-battery",
136	"backup-battery",
137};
138
139
140static 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
148static 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 */
158struct platform_device collie_locomo_device;
159
160static 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
173static 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
189static struct sa1100_port_fns collie_port_fns __initdata = {
190	.set_mctrl	= collie_uart_set_mctrl,
191	.get_mctrl	= collie_uart_get_mctrl,
192};
193
194static int collie_uart_probe(struct locomo_dev *dev)
195{
196	return 0;
197}
198
199static int collie_uart_remove(struct locomo_dev *dev)
200{
201	return 0;
202}
203
204static 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
213static int __init collie_uart_init(void)
214{
215	return locomo_driver_register(&collie_uart_driver);
216}
217device_initcall(collie_uart_init);
218
219#endif
220
221
222static struct resource locomo_resources[] = {
223	[0] = DEFINE_RES_MEM(0x40000000, SZ_8K),
224	[1] = DEFINE_RES_IRQ(IRQ_GPIO25),
225};
226
227static struct locomo_platform_data locomo_info = {
228	.irq_base	= IRQ_BOARD_START,
229};
230
231struct 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
241static 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
260static struct gpio_keys_platform_data collie_gpio_keys_data = {
261	.buttons	= collie_gpio_keys,
262	.nbuttons	= ARRAY_SIZE(collie_gpio_keys),
263};
264
265static 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
273static struct platform_device *devices[] __initdata = {
274	&collie_locomo_device,
275	&colliescoop_device,
276	&collie_power_device,
277	&collie_gpio_keys_device,
278};
279
280static 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
302static 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
315static void collie_set_vpp(int vpp)
316{
317	gpio_set_value(COLLIE_GPIO_VPEN, vpp);
318}
319
320static void collie_flash_exit(void)
321{
322	gpio_free(COLLIE_GPIO_VPEN);
323}
324
325static 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
334static struct resource collie_flash_resources[] = {
335	DEFINE_RES_MEM(SA1100_CS0_PHYS, SZ_32M),
336};
337
338static 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
356static 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
403static 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
417static 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
429MACHINE_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,
437MACHINE_END
438