aboutsummaryrefslogtreecommitdiffstats
path: root/arch/arm/mach-iop13xx/tpmi.c
blob: c6af1e1bee32e5a844d13686eabf02ade6f10c57 (plain) (blame)
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
/*
 * iop13xx tpmi device resources
 * Copyright (c) 2005-2006, Intel Corporation.
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms and conditions of the GNU General Public License,
 * version 2, as published by the Free Software Foundation.
 *
 * This program is distributed in the hope it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
 * more details.
 *
 * You should have received a copy of the GNU General Public License along with
 * this program; if not, write to the Free Software Foundation, Inc., 59 Temple
 * Place - Suite 330, Boston, MA 02111-1307 USA.
 *
 */

#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/dma-mapping.h>
#include <linux/io.h>
#include <asm/irq.h>
#include <asm/sizes.h>

/* assumes CONTROLLER_ONLY# is never asserted in the ESSR register */
#define IOP13XX_TPMI_MMR(dev) 	IOP13XX_REG_ADDR32_PHYS(0x48000 + (dev << 12))
#define IOP13XX_TPMI_MEM(dev) 	IOP13XX_REG_ADDR32_PHYS(0x60000 + (dev << 13))
#define IOP13XX_TPMI_CTRL(dev)	IOP13XX_REG_ADDR32_PHYS(0x50000 + (dev << 10))
#define IOP13XX_TPMI_IOP_CTRL(dev) (IOP13XX_TPMI_CTRL(dev) + 0x2000)
#define IOP13XX_TPMI_MMR_SIZE	    (SZ_4K - 1)
#define IOP13XX_TPMI_MEM_SIZE	    (255)
#define IOP13XX_TPMI_MEM_CTRL	    (SZ_1K - 1)
#define IOP13XX_TPMI_RESOURCE_MMR  0
#define IOP13XX_TPMI_RESOURCE_MEM  1
#define IOP13XX_TPMI_RESOURCE_CTRL 2
#define IOP13XX_TPMI_RESOURCE_IOP_CTRL 3
#define IOP13XX_TPMI_RESOURCE_IRQ  4

static struct resource iop13xx_tpmi_0_resources[] = {
	[IOP13XX_TPMI_RESOURCE_MMR] = {
		.start = IOP13XX_TPMI_MMR(4), /* tpmi0 starts at dev == 4 */
		.end = IOP13XX_TPMI_MMR(4) + IOP13XX_TPMI_MMR_SIZE,
		.flags = IORESOURCE_MEM,
	},
	[IOP13XX_TPMI_RESOURCE_MEM] = {
		.start = IOP13XX_TPMI_MEM(0),
		.end = IOP13XX_TPMI_MEM(0) + IOP13XX_TPMI_MEM_SIZE,
		.flags = IORESOURCE_MEM,
	},
	[IOP13XX_TPMI_RESOURCE_CTRL] = {
		.start = IOP13XX_TPMI_CTRL(0),
		.end = IOP13XX_TPMI_CTRL(0) + IOP13XX_TPMI_MEM_CTRL,
		.flags = IORESOURCE_MEM,
	},
	[IOP13XX_TPMI_RESOURCE_IOP_CTRL] = {
		.start = IOP13XX_TPMI_IOP_CTRL(0),
		.end = IOP13XX_TPMI_IOP_CTRL(0) + IOP13XX_TPMI_MEM_CTRL,
		.flags = IORESOURCE_MEM,
	},
	[IOP13XX_TPMI_RESOURCE_IRQ] = {
		.start = IRQ_IOP13XX_TPMI0_OUT,
		.end = IRQ_IOP13XX_TPMI0_OUT,
		.flags = IORESOURCE_IRQ
	}
};

static struct resource iop13xx_tpmi_1_resources[] = {
	[IOP13XX_TPMI_RESOURCE_MMR] = {
		.start = IOP13XX_TPMI_MMR(1),
		.end = IOP13XX_TPMI_MMR(1) + IOP13XX_TPMI_MMR_SIZE,
		.flags = IORESOURCE_MEM,
	},
	[IOP13XX_TPMI_RESOURCE_MEM] = {
		.start = IOP13XX_TPMI_MEM(1),
		.end = IOP13XX_TPMI_MEM(1) + IOP13XX_TPMI_MEM_SIZE,
		.flags = IORESOURCE_MEM,
	},
	[IOP13XX_TPMI_RESOURCE_CTRL] = {
		.start = IOP13XX_TPMI_CTRL(1),
		.end = IOP13XX_TPMI_CTRL(1) + IOP13XX_TPMI_MEM_CTRL,
		.flags = IORESOURCE_MEM,
	},
	[IOP13XX_TPMI_RESOURCE_IOP_CTRL] = {
		.start = IOP13XX_TPMI_IOP_CTRL(1),
		.end = IOP13XX_TPMI_IOP_CTRL(1) + IOP13XX_TPMI_MEM_CTRL,
		.flags = IORESOURCE_MEM,
	},
	[IOP13XX_TPMI_RESOURCE_IRQ] = {
		.start = IRQ_IOP13XX_TPMI1_OUT,
		.end = IRQ_IOP13XX_TPMI1_OUT,
		.flags = IORESOURCE_IRQ
	}
};

static struct resource iop13xx_tpmi_2_resources[] = {
	[IOP13XX_TPMI_RESOURCE_MMR] = {
		.start = IOP13XX_TPMI_MMR(2),
		.end = IOP13XX_TPMI_MMR(2) + IOP13XX_TPMI_MMR_SIZE,
		.flags = IORESOURCE_MEM,
	},
	[IOP13XX_TPMI_RESOURCE_MEM] = {
		.start = IOP13XX_TPMI_MEM(2),
		.end = IOP13XX_TPMI_MEM(2) + IOP13XX_TPMI_MEM_SIZE,
		.flags = IORESOURCE_MEM,
	},
	[IOP13XX_TPMI_RESOURCE_CTRL] = {
		.start = IOP13XX_TPMI_CTRL(2),
		.end = IOP13XX_TPMI_CTRL(2) + IOP13XX_TPMI_MEM_CTRL,
		.flags = IORESOURCE_MEM,
	},
	[IOP13XX_TPMI_RESOURCE_IOP_CTRL] = {
		.start = IOP13XX_TPMI_IOP_CTRL(2),
		.end = IOP13XX_TPMI_IOP_CTRL(2) + IOP13XX_TPMI_MEM_CTRL,
		.flags = IORESOURCE_MEM,
	},
	[IOP13XX_TPMI_RESOURCE_IRQ] = {
		.start = IRQ_IOP13XX_TPMI2_OUT,
		.end = IRQ_IOP13XX_TPMI2_OUT,
		.flags = IORESOURCE_IRQ
	}
};

static struct resource iop13xx_tpmi_3_resources[] = {
	[IOP13XX_TPMI_RESOURCE_MMR] = {
		.start = IOP13XX_TPMI_MMR(3),
		.end = IOP13XX_TPMI_MMR(3) + IOP13XX_TPMI_MMR_SIZE,
		.flags = IORESOURCE_MEM,
	},
	[IOP13XX_TPMI_RESOURCE_MEM] = {
		.start = IOP13XX_TPMI_MEM(3),
		.end = IOP13XX_TPMI_MEM(3) + IOP13XX_TPMI_MEM_SIZE,
		.flags = IORESOURCE_MEM,
	},
	[IOP13XX_TPMI_RESOURCE_CTRL] = {
		.start = IOP13XX_TPMI_CTRL(3),
		.end = IOP13XX_TPMI_CTRL(3) + IOP13XX_TPMI_MEM_CTRL,
		.flags = IORESOURCE_MEM,
	},
	[IOP13XX_TPMI_RESOURCE_IOP_CTRL] = {
		.start = IOP13XX_TPMI_IOP_CTRL(3),
		.end = IOP13XX_TPMI_IOP_CTRL(3) + IOP13XX_TPMI_MEM_CTRL,
		.flags = IORESOURCE_MEM,
	},
	[IOP13XX_TPMI_RESOURCE_IRQ] = {
		.start = IRQ_IOP13XX_TPMI3_OUT,
		.end = IRQ_IOP13XX_TPMI3_OUT,
		.flags = IORESOURCE_IRQ
	}
};

u64 iop13xx_tpmi_mask = DMA_64BIT_MASK;
static struct platform_device iop13xx_tpmi_0_device = {
	.name = "iop-tpmi",
	.id = 0,
	.num_resources = ARRAY_SIZE(iop13xx_tpmi_0_resources),
	.resource = iop13xx_tpmi_0_resources,
	.dev = {
		.dma_mask          = &iop13xx_tpmi_mask,
		.coherent_dma_mask = DMA_64BIT_MASK,
	},
};

static struct platform_device iop13xx_tpmi_1_device = {
	.name = "iop-tpmi",
	.id = 1,
	.num_resources = ARRAY_SIZE(iop13xx_tpmi_1_resources),
	.resource = iop13xx_tpmi_1_resources,
	.dev = {
		.dma_mask          = &iop13xx_tpmi_mask,
		.coherent_dma_mask = DMA_64BIT_MASK,
	},
};

static struct platform_device iop13xx_tpmi_2_device = {
	.name = "iop-tpmi",
	.id = 2,
	.num_resources = ARRAY_SIZE(iop13xx_tpmi_2_resources),
	.resource = iop13xx_tpmi_2_resources,
	.dev = {
		.dma_mask          = &iop13xx_tpmi_mask,
		.coherent_dma_mask = DMA_64BIT_MASK,
	},
};

static struct platform_device iop13xx_tpmi_3_device = {
	.name = "iop-tpmi",
	.id = 3,
	.num_resources = ARRAY_SIZE(iop13xx_tpmi_3_resources),
	.resource = iop13xx_tpmi_3_resources,
	.dev = {
		.dma_mask          = &iop13xx_tpmi_mask,
		.coherent_dma_mask = DMA_64BIT_MASK,
	},
};

__init void iop13xx_add_tpmi_devices(void)
{
	unsigned short device_id;

	/* tpmi's not present on iop341 or iop342 */
	if (__raw_readl(IOP13XX_ESSR0) & IOP13XX_INTERFACE_SEL_PCIX)
		/* ATUE must be present */
		device_id = __raw_readw(IOP13XX_ATUE_DID);
	else
		/* ATUX must be present */
		device_id = __raw_readw(IOP13XX_ATUX_DID);

	switch (device_id) {
	/* iop34[1|2] 0-tpmi */
	case 0x3380:
	case 0x3384:
	case 0x3388:
	case 0x338c:
	case 0x3382:
	case 0x3386:
	case 0x338a:
	case 0x338e:
		return;
	/* iop348 1-tpmi */
	case 0x3310:
	case 0x3312:
	case 0x3314:
	case 0x3318:
	case 0x331a:
	case 0x331c:
	case 0x33c0:
	case 0x33c2:
	case 0x33c4:
	case 0x33c8:
	case 0x33ca:
	case 0x33cc:
	case 0x33b0:
	case 0x33b2:
	case 0x33b4:
	case 0x33b8:
	case 0x33ba:
	case 0x33bc:
	case 0x3320:
	case 0x3322:
	case 0x3324:
	case 0x3328:
	case 0x332a:
	case 0x332c:
		platform_device_register(&iop13xx_tpmi_0_device);
		return;
	default:
		platform_device_register(&iop13xx_tpmi_0_device);
		platform_device_register(&iop13xx_tpmi_1_device);
		platform_device_register(&iop13xx_tpmi_2_device);
		platform_device_register(&iop13xx_tpmi_3_device);
		return;
	}
}