summaryrefslogtreecommitdiffstats
path: root/arch/arm/mach-davinci/devices-tnetv107x.c
blob: 6162cae7f868e2febb07f4c3496ff61443356bb1 (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
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
/*
 * Texas Instruments TNETV107X SoC devices
 *
 * Copyright (C) 2010 Texas Instruments
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation version 2.
 *
 * This program is distributed "as is" WITHOUT ANY WARRANTY of any
 * kind, whether express or implied; without even the implied warranty
 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 */
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/dma-mapping.h>
#include <linux/clk.h>
#include <linux/slab.h>

#include <mach/common.h>
#include <mach/irqs.h>
#include <mach/edma.h>
#include <mach/tnetv107x.h>

#include "clock.h"

/* Base addresses for on-chip devices */
#define TNETV107X_TPCC_BASE			0x01c00000
#define TNETV107X_TPTC0_BASE			0x01c10000
#define TNETV107X_TPTC1_BASE			0x01c10400
#define TNETV107X_WDOG_BASE			0x08086700
#define TNETV107X_TSC_BASE			0x08088500
#define TNETV107X_SDIO0_BASE			0x08088700
#define TNETV107X_SDIO1_BASE			0x08088800
#define TNETV107X_KEYPAD_BASE			0x08088a00
#define TNETV107X_SSP_BASE			0x08088c00
#define TNETV107X_ASYNC_EMIF_CNTRL_BASE		0x08200000
#define TNETV107X_ASYNC_EMIF_DATA_CE0_BASE	0x30000000
#define TNETV107X_ASYNC_EMIF_DATA_CE1_BASE	0x40000000
#define TNETV107X_ASYNC_EMIF_DATA_CE2_BASE	0x44000000
#define TNETV107X_ASYNC_EMIF_DATA_CE3_BASE	0x48000000

/* TNETV107X specific EDMA3 information */
#define EDMA_TNETV107X_NUM_DMACH	64
#define EDMA_TNETV107X_NUM_TCC		64
#define EDMA_TNETV107X_NUM_PARAMENTRY	128
#define EDMA_TNETV107X_NUM_EVQUE	2
#define EDMA_TNETV107X_NUM_TC		2
#define EDMA_TNETV107X_CHMAP_EXIST	0
#define EDMA_TNETV107X_NUM_REGIONS	4
#define TNETV107X_DMACH2EVENT_MAP0	0x3C0CE000u
#define TNETV107X_DMACH2EVENT_MAP1	0x000FFFFFu

#define TNETV107X_DMACH_SDIO0_RX		26
#define TNETV107X_DMACH_SDIO0_TX		27
#define TNETV107X_DMACH_SDIO1_RX		28
#define TNETV107X_DMACH_SDIO1_TX		29

static const s8 edma_tc_mapping[][2] = {
	/* event queue no	TC no	*/
	{	 0,		 0	},
	{	 1,		 1	},
	{	-1,		-1	}
};

static const s8 edma_priority_mapping[][2] = {
	/* event queue no	Prio	*/
	{	 0,		 3	},
	{	 1,		 7	},
	{	-1,		-1	}
};

static struct edma_soc_info edma_cc0_info = {
	.n_channel		= EDMA_TNETV107X_NUM_DMACH,
	.n_region		= EDMA_TNETV107X_NUM_REGIONS,
	.n_slot			= EDMA_TNETV107X_NUM_PARAMENTRY,
	.n_tc			= EDMA_TNETV107X_NUM_TC,
	.n_cc			= 1,
	.queue_tc_mapping	= edma_tc_mapping,
	.queue_priority_mapping	= edma_priority_mapping,
};

static struct edma_soc_info *tnetv107x_edma_info[EDMA_MAX_CC] = {
	&edma_cc0_info,
};

static struct resource edma_resources[] = {
	{
		.name	= "edma_cc0",
		.start	= TNETV107X_TPCC_BASE,
		.end	= TNETV107X_TPCC_BASE + SZ_32K - 1,
		.flags	= IORESOURCE_MEM,
	},
	{
		.name	= "edma_tc0",
		.start	= TNETV107X_TPTC0_BASE,
		.end	= TNETV107X_TPTC0_BASE + SZ_1K - 1,
		.flags	= IORESOURCE_MEM,
	},
	{
		.name	= "edma_tc1",
		.start	= TNETV107X_TPTC1_BASE,
		.end	= TNETV107X_TPTC1_BASE + SZ_1K - 1,
		.flags	= IORESOURCE_MEM,
	},
	{
		.name	= "edma0",
		.start	= IRQ_TNETV107X_TPCC,
		.flags	= IORESOURCE_IRQ,
	},
	{
		.name	= "edma0_err",
		.start	= IRQ_TNETV107X_TPCC_ERR,
		.flags	= IORESOURCE_IRQ,
	},
};

static struct platform_device edma_device = {
	.name		= "edma",
	.id		= -1,
	.num_resources	= ARRAY_SIZE(edma_resources),
	.resource	= edma_resources,
	.dev.platform_data = tnetv107x_edma_info,
};

static struct plat_serial8250_port serial_data[] = {
	{
		.mapbase	= TNETV107X_UART0_BASE,
		.irq		= IRQ_TNETV107X_UART0,
		.flags		= UPF_BOOT_AUTOCONF | UPF_SKIP_TEST |
					UPF_FIXED_TYPE | UPF_IOREMAP,
		.type		= PORT_AR7,
		.iotype		= UPIO_MEM32,
		.regshift	= 2,
	},
	{
		.mapbase	= TNETV107X_UART1_BASE,
		.irq		= IRQ_TNETV107X_UART1,
		.flags		= UPF_BOOT_AUTOCONF | UPF_SKIP_TEST |
					UPF_FIXED_TYPE | UPF_IOREMAP,
		.type		= PORT_AR7,
		.iotype		= UPIO_MEM32,
		.regshift	= 2,
	},
	{
		.mapbase	= TNETV107X_UART2_BASE,
		.irq		= IRQ_TNETV107X_UART2,
		.flags		= UPF_BOOT_AUTOCONF | UPF_SKIP_TEST |
					UPF_FIXED_TYPE | UPF_IOREMAP,
		.type		= PORT_AR7,
		.iotype		= UPIO_MEM32,
		.regshift	= 2,
	},
	{
		.flags	= 0,
	},
};

struct platform_device tnetv107x_serial_device = {
	.name			= "serial8250",
	.id			= PLAT8250_DEV_PLATFORM,
	.dev.platform_data	= serial_data,
};

static struct resource mmc0_resources[] = {
	{ /* Memory mapped registers */
		.start	= TNETV107X_SDIO0_BASE,
		.end	= TNETV107X_SDIO0_BASE + 0x0ff,
		.flags	= IORESOURCE_MEM
	},
	{ /* MMC interrupt */
		.start	= IRQ_TNETV107X_MMC0,
		.flags	= IORESOURCE_IRQ
	},
	{ /* SDIO interrupt */
		.start	= IRQ_TNETV107X_SDIO0,
		.flags	= IORESOURCE_IRQ
	},
	{ /* DMA RX */
		.start	= EDMA_CTLR_CHAN(0, TNETV107X_DMACH_SDIO0_RX),
		.flags	= IORESOURCE_DMA
	},
	{ /* DMA TX */
		.start	= EDMA_CTLR_CHAN(0, TNETV107X_DMACH_SDIO0_TX),
		.flags	= IORESOURCE_DMA
	},
};

static struct resource mmc1_resources[] = {
	{ /* Memory mapped registers */
		.start	= TNETV107X_SDIO1_BASE,
		.end	= TNETV107X_SDIO1_BASE + 0x0ff,
		.flags	= IORESOURCE_MEM
	},
	{ /* MMC interrupt */
		.start	= IRQ_TNETV107X_MMC1,
		.flags	= IORESOURCE_IRQ
	},
	{ /* SDIO interrupt */
		.start	= IRQ_TNETV107X_SDIO1,
		.flags	= IORESOURCE_IRQ
	},
	{ /* DMA RX */
		.start	= EDMA_CTLR_CHAN(0, TNETV107X_DMACH_SDIO1_RX),
		.flags	= IORESOURCE_DMA
	},
	{ /* DMA TX */
		.start	= EDMA_CTLR_CHAN(0, TNETV107X_DMACH_SDIO1_TX),
		.flags	= IORESOURCE_DMA
	},
};

static u64 mmc0_dma_mask = DMA_BIT_MASK(32);
static u64 mmc1_dma_mask = DMA_BIT_MASK(32);

static struct platform_device mmc_devices[2] = {
	{
		.name		= "davinci_mmc",
		.id		= 0,
		.dev		= {
			.dma_mask		= &mmc0_dma_mask,
			.coherent_dma_mask	= DMA_BIT_MASK(32),
		},
		.num_resources	= ARRAY_SIZE(mmc0_resources),
		.resource	= mmc0_resources
	},
	{
		.name		= "davinci_mmc",
		.id		= 1,
		.dev		= {
			.dma_mask		= &mmc1_dma_mask,
			.coherent_dma_mask	= DMA_BIT_MASK(32),
		},
		.num_resources	= ARRAY_SIZE(mmc1_resources),
		.resource	= mmc1_resources
	},
};

static const u32 emif_windows[] = {
	TNETV107X_ASYNC_EMIF_DATA_CE0_BASE, TNETV107X_ASYNC_EMIF_DATA_CE1_BASE,
	TNETV107X_ASYNC_EMIF_DATA_CE2_BASE, TNETV107X_ASYNC_EMIF_DATA_CE3_BASE,
};

static const u32 emif_window_sizes[] = { SZ_256M, SZ_64M, SZ_64M, SZ_64M };

static struct resource wdt_resources[] = {
	{
		.start	= TNETV107X_WDOG_BASE,
		.end	= TNETV107X_WDOG_BASE + SZ_4K - 1,
		.flags	= IORESOURCE_MEM,
	},
};

struct platform_device tnetv107x_wdt_device = {
	.name		= "tnetv107x_wdt",
	.id		= 0,
	.num_resources	= ARRAY_SIZE(wdt_resources),
	.resource	= wdt_resources,
};

static int __init nand_init(int chipsel, struct davinci_nand_pdata *data)
{
	struct resource res[2];
	struct platform_device *pdev;
	u32	range;
	int	ret;

	/* Figure out the resource range from the ale/cle masks */
	range = max(data->mask_cle, data->mask_ale);
	range = PAGE_ALIGN(range + 4) - 1;

	if (range >= emif_window_sizes[chipsel])
		return -EINVAL;

	pdev = kzalloc(sizeof(*pdev), GFP_KERNEL);
	if (!pdev)
		return -ENOMEM;

	pdev->name		= "davinci_nand";
	pdev->id		= chipsel;
	pdev->dev.platform_data	= data;

	memset(res, 0, sizeof(res));

	res[0].start	= emif_windows[chipsel];
	res[0].end	= res[0].start + range;
	res[0].flags	= IORESOURCE_MEM;

	res[1].start	= TNETV107X_ASYNC_EMIF_CNTRL_BASE;
	res[1].end	= res[1].start + SZ_4K - 1;
	res[1].flags	= IORESOURCE_MEM;

	ret = platform_device_add_resources(pdev, res, ARRAY_SIZE(res));
	if (ret < 0) {
		kfree(pdev);
		return ret;
	}

	return platform_device_register(pdev);
}

static struct resource keypad_resources[] = {
	{
		.start	= TNETV107X_KEYPAD_BASE,
		.end	= TNETV107X_KEYPAD_BASE + 0xff,
		.flags	= IORESOURCE_MEM,
	},
	{
		.start	= IRQ_TNETV107X_KEYPAD,
		.flags	= IORESOURCE_IRQ,
		.name	= "press",
	},
	{
		.start	= IRQ_TNETV107X_KEYPAD_FREE,
		.flags	= IORESOURCE_IRQ,
		.name	= "release",
	},
};

static struct platform_device keypad_device = {
	.name		= "tnetv107x-keypad",
	.num_resources	= ARRAY_SIZE(keypad_resources),
	.resource	= keypad_resources,
};

static struct resource tsc_resources[] = {
	{
		.start	= TNETV107X_TSC_BASE,
		.end	= TNETV107X_TSC_BASE + 0xff,
		.flags	= IORESOURCE_MEM,
	},
	{
		.start	= IRQ_TNETV107X_TSC,
		.flags	= IORESOURCE_IRQ,
	},
};

static struct platform_device tsc_device = {
	.name		= "tnetv107x-ts",
	.num_resources	= ARRAY_SIZE(tsc_resources),
	.resource	= tsc_resources,
};

static struct resource ssp_resources[] = {
	{
		.start	= TNETV107X_SSP_BASE,
		.end	= TNETV107X_SSP_BASE + 0x1ff,
		.flags	= IORESOURCE_MEM,
	},
	{
		.start	= IRQ_TNETV107X_SSP,
		.flags	= IORESOURCE_IRQ,
	},
};

static struct platform_device ssp_device = {
	.name		= "ti-ssp",
	.id		= -1,
	.num_resources	= ARRAY_SIZE(ssp_resources),
	.resource	= ssp_resources,
};

void __init tnetv107x_devices_init(struct tnetv107x_device_info *info)
{
	int i, error;
	struct clk *tsc_clk;

	/*
	 * The reset defaults for tnetv107x tsc clock divider is set too high.
	 * This forces the clock down to a range that allows the ADC to
	 * complete sample conversion in time.
	 */
	tsc_clk = clk_get(NULL, "sys_tsc_clk");
	if (tsc_clk) {
		error = clk_set_rate(tsc_clk, 5000000);
		WARN_ON(error < 0);
		clk_put(tsc_clk);
	}

	platform_device_register(&edma_device);
	platform_device_register(&tnetv107x_wdt_device);
	platform_device_register(&tsc_device);

	if (info->serial_config)
		davinci_serial_init(info->serial_config);

	for (i = 0; i < 2; i++)
		if (info->mmc_config[i]) {
			mmc_devices[i].dev.platform_data = info->mmc_config[i];
			platform_device_register(&mmc_devices[i]);
		}

	for (i = 0; i < 4; i++)
		if (info->nand_config[i])
			nand_init(i, info->nand_config[i]);

	if (info->keypad_config) {
		keypad_device.dev.platform_data = info->keypad_config;
		platform_device_register(&keypad_device);
	}

	if (info->ssp_config) {
		ssp_device.dev.platform_data = info->ssp_config;
		platform_device_register(&ssp_device);
	}
}
OpenPOWER on IntegriCloud