summaryrefslogtreecommitdiffstats
path: root/arch/arm/mach-pxa/tosa.c
blob: 249353616aba519ecefbc3868c27aaab58f5d14d (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
/*
 *  Support for Sharp SL-C6000x PDAs
 *  Model: (Tosa)
 *
 *  Copyright (c) 2005 Dirk Opfer
 *
 *	Based on code written by Sharp/Lineo for 2.4 kernels
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License version 2 as
 *  published by the Free Software Foundation.
 *
 */

#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/major.h>
#include <linux/fs.h>
#include <linux/interrupt.h>
#include <linux/mmc/host.h>
#include <linux/pm.h>
#include <linux/delay.h>

#include <asm/setup.h>
#include <asm/memory.h>
#include <asm/mach-types.h>
#include <asm/hardware.h>
#include <asm/irq.h>
#include <asm/system.h>
#include <asm/arch/irda.h>
#include <asm/arch/mmc.h>
#include <asm/arch/udc.h>

#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <asm/mach/irq.h>

#include <asm/arch/pxa-regs.h>
#include <asm/arch/tosa.h>

#include <asm/hardware/scoop.h>
#include <asm/mach/sharpsl_param.h>

#include "generic.h"


/*
 * SCOOP Device
 */
static struct resource tosa_scoop_resources[] = {
	[0] = {
		.start	= TOSA_CF_PHYS,
		.end	= TOSA_CF_PHYS + 0xfff,
		.flags	= IORESOURCE_MEM,
	},
};

static struct scoop_config tosa_scoop_setup = {
	.io_dir 	= TOSA_SCOOP_IO_DIR,
	.io_out		= TOSA_SCOOP_IO_OUT,

};

struct platform_device tosascoop_device = {
	.name		= "sharp-scoop",
	.id		= 0,
	.dev		= {
 		.platform_data	= &tosa_scoop_setup,
	},
	.num_resources	= ARRAY_SIZE(tosa_scoop_resources),
	.resource	= tosa_scoop_resources,
};


/*
 * SCOOP Device Jacket
 */
static struct resource tosa_scoop_jc_resources[] = {
	[0] = {
		.start		= TOSA_SCOOP_PHYS + 0x40,
		.end		= TOSA_SCOOP_PHYS + 0xfff,
		.flags		= IORESOURCE_MEM,
	},
};

static struct scoop_config tosa_scoop_jc_setup = {
	.io_dir 	= TOSA_SCOOP_JC_IO_DIR,
	.io_out		= TOSA_SCOOP_JC_IO_OUT,
};

struct platform_device tosascoop_jc_device = {
	.name		= "sharp-scoop",
	.id		= 1,
	.dev		= {
 		.platform_data	= &tosa_scoop_jc_setup,
		.parent 	= &tosascoop_device.dev,
	},
	.num_resources	= ARRAY_SIZE(tosa_scoop_jc_resources),
	.resource	= tosa_scoop_jc_resources,
};

/*
 * PCMCIA
 */
static struct scoop_pcmcia_dev tosa_pcmcia_scoop[] = {
{
	.dev        = &tosascoop_device.dev,
	.irq        = TOSA_IRQ_GPIO_CF_IRQ,
	.cd_irq     = TOSA_IRQ_GPIO_CF_CD,
	.cd_irq_str = "PCMCIA0 CD",
},{
	.dev        = &tosascoop_jc_device.dev,
	.irq        = TOSA_IRQ_GPIO_JC_CF_IRQ,
	.cd_irq     = -1,
},
};

static void tosa_pcmcia_init(void)
{
	/* Setup default state of GPIO outputs
	   before we enable them as outputs. */
	GPSR(GPIO48_nPOE) = GPIO_bit(GPIO48_nPOE) |
		GPIO_bit(GPIO49_nPWE) | GPIO_bit(GPIO50_nPIOR) |
		GPIO_bit(GPIO51_nPIOW) | GPIO_bit(GPIO52_nPCE_1) |
		GPIO_bit(GPIO53_nPCE_2);

	pxa_gpio_mode(GPIO48_nPOE_MD);
	pxa_gpio_mode(GPIO49_nPWE_MD);
	pxa_gpio_mode(GPIO50_nPIOR_MD);
	pxa_gpio_mode(GPIO51_nPIOW_MD);
	pxa_gpio_mode(GPIO55_nPREG_MD);
	pxa_gpio_mode(GPIO56_nPWAIT_MD);
	pxa_gpio_mode(GPIO57_nIOIS16_MD);
	pxa_gpio_mode(GPIO52_nPCE_1_MD);
	pxa_gpio_mode(GPIO53_nPCE_2_MD);
	pxa_gpio_mode(GPIO54_pSKTSEL_MD);
}

static struct scoop_pcmcia_config tosa_pcmcia_config = {
	.devs         = &tosa_pcmcia_scoop[0],
	.num_devs     = 2,
	.pcmcia_init  = tosa_pcmcia_init,
};

/*
 * USB Device Controller
 */
static void tosa_udc_command(int cmd)
{
	switch(cmd)	{
		case PXA2XX_UDC_CMD_CONNECT:
			set_scoop_gpio(&tosascoop_jc_device.dev,TOSA_SCOOP_JC_USB_PULLUP);
			break;
		case PXA2XX_UDC_CMD_DISCONNECT:
			reset_scoop_gpio(&tosascoop_jc_device.dev,TOSA_SCOOP_JC_USB_PULLUP);
			break;
	}
}

static int tosa_udc_is_connected(void)
{
	return ((GPLR(TOSA_GPIO_USB_IN) & GPIO_bit(TOSA_GPIO_USB_IN)) == 0);
}


static struct pxa2xx_udc_mach_info udc_info __initdata = {
	.udc_command		= tosa_udc_command,
	.udc_is_connected	= tosa_udc_is_connected,
};

/*
 * MMC/SD Device
 */
static struct pxamci_platform_data tosa_mci_platform_data;

static int tosa_mci_init(struct device *dev, irqreturn_t (*tosa_detect_int)(int, void *, struct pt_regs *), void *data)
{
	int err;

	/* setup GPIO for PXA25x MMC controller */
	pxa_gpio_mode(GPIO6_MMCCLK_MD);
	pxa_gpio_mode(GPIO8_MMCCS0_MD);
	pxa_gpio_mode(TOSA_GPIO_nSD_DETECT | GPIO_IN);

	tosa_mci_platform_data.detect_delay = msecs_to_jiffies(250);

	err = request_irq(TOSA_IRQ_GPIO_nSD_DETECT, tosa_detect_int, IRQF_DISABLED,
				"MMC/SD card detect", data);
	if (err) {
		printk(KERN_ERR "tosa_mci_init: MMC/SD: can't request MMC card detect IRQ\n");
		return -1;
	}

	set_irq_type(TOSA_IRQ_GPIO_nSD_DETECT, IRQT_BOTHEDGE);

	return 0;
}

static void tosa_mci_setpower(struct device *dev, unsigned int vdd)
{
	struct pxamci_platform_data* p_d = dev->platform_data;

	if (( 1 << vdd) & p_d->ocr_mask) {
		set_scoop_gpio(&tosascoop_device.dev,TOSA_SCOOP_PWR_ON);
	} else {
		reset_scoop_gpio(&tosascoop_device.dev,TOSA_SCOOP_PWR_ON);
	}
}

static int tosa_mci_get_ro(struct device *dev)
{
	return (read_scoop_reg(&tosascoop_device.dev, SCOOP_GPWR)&TOSA_SCOOP_SD_WP);
}

static void tosa_mci_exit(struct device *dev, void *data)
{
	free_irq(TOSA_IRQ_GPIO_nSD_DETECT, data);
}

static struct pxamci_platform_data tosa_mci_platform_data = {
	.ocr_mask       = MMC_VDD_32_33|MMC_VDD_33_34,
	.init           = tosa_mci_init,
	.get_ro		= tosa_mci_get_ro,
	.setpower       = tosa_mci_setpower,
	.exit           = tosa_mci_exit,
};

/*
 * Irda
 */
static void tosa_irda_transceiver_mode(struct device *dev, int mode)
{
	if (mode & IR_OFF) {
		reset_scoop_gpio(&tosascoop_device.dev,TOSA_SCOOP_IR_POWERDWN);
		pxa_gpio_mode(GPIO47_STTXD|GPIO_DFLT_LOW);
		pxa_gpio_mode(GPIO47_STTXD|GPIO_OUT);
	} else {
		pxa_gpio_mode(GPIO47_STTXD_MD);
		set_scoop_gpio(&tosascoop_device.dev,TOSA_SCOOP_IR_POWERDWN);
	}
}

static struct pxaficp_platform_data tosa_ficp_platform_data = {
	.transceiver_cap  = IR_SIRMODE | IR_OFF,
	.transceiver_mode = tosa_irda_transceiver_mode,
};

/*
 * Tosa Keyboard
 */
static struct platform_device tosakbd_device = {
	.name		= "tosa-keyboard",
	.id		= -1,
};

/*
 * Tosa LEDs
 */
static struct platform_device tosaled_device = {
    .name   = "tosa-led",
    .id     = -1,
};

static struct platform_device *devices[] __initdata = {
	&tosascoop_device,
	&tosascoop_jc_device,
	&tosakbd_device,
	&tosaled_device,
};

static void tosa_poweroff(void)
{
	RCSR = RCSR_HWR | RCSR_WDR | RCSR_SMR | RCSR_GPR;

	pxa_gpio_mode(TOSA_GPIO_ON_RESET | GPIO_OUT);
	GPSR(TOSA_GPIO_ON_RESET) = GPIO_bit(TOSA_GPIO_ON_RESET);

	mdelay(1000);
	arm_machine_restart('h');
}

static void tosa_restart(char mode)
{
	/* Bootloader magic for a reboot */
	if((MSC0 & 0xffff0000) == 0x7ff00000)
		MSC0 = (MSC0 & 0xffff) | 0x7ee00000;

	tosa_poweroff();
}

static void __init tosa_init(void)
{
	pm_power_off = tosa_poweroff;
	arm_pm_restart = tosa_restart;

	pxa_gpio_mode(TOSA_GPIO_ON_RESET | GPIO_IN);
	pxa_gpio_mode(TOSA_GPIO_TC6393_INT | GPIO_IN);
	pxa_gpio_mode(TOSA_GPIO_USB_IN | GPIO_IN);

	/* setup sleep mode values */
	PWER  = 0x00000002;
	PFER  = 0x00000000;
	PRER  = 0x00000002;
	PGSR0 = 0x00000000;
	PGSR1 = 0x00FF0002;
	PGSR2 = 0x00014000;
	PCFR |= PCFR_OPDE;

	/* enable batt_fault */
	PMCR = 0x01;

	pxa_set_mci_info(&tosa_mci_platform_data);
	pxa_set_udc_info(&udc_info);
	pxa_set_ficp_info(&tosa_ficp_platform_data);
	platform_scoop_config = &tosa_pcmcia_config;

	platform_add_devices(devices, ARRAY_SIZE(devices));
}

static void __init fixup_tosa(struct machine_desc *desc,
		struct tag *tags, char **cmdline, struct meminfo *mi)
{
	sharpsl_save_param();
	mi->nr_banks=1;
	mi->bank[0].start = 0xa0000000;
	mi->bank[0].node = 0;
	mi->bank[0].size = (64*1024*1024);
}

MACHINE_START(TOSA, "SHARP Tosa")
	.phys_io	= 0x40000000,
	.io_pg_offst	= (io_p2v(0x40000000) >> 18) & 0xfffc,
	.fixup          = fixup_tosa,
	.map_io         = pxa_map_io,
	.init_irq       = pxa_init_irq,
	.init_machine   = tosa_init,
	.timer          = &pxa_timer,
MACHINE_END