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ARM: 8559/1: errata: Workaround erratum A12 821420
[deliverable/linux.git] / arch / arm / mach-iop13xx / tpmi.c
CommitLineData
d2dd8b1f
DW		 1/*
2 * iop13xx tpmi device resources
3 * Copyright (c) 2005-2006, Intel Corporation.
4 *
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms and conditions of the GNU General Public License,
7 * version 2, as published by the Free Software Foundation.
8 *
9 * This program is distributed in the hope it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
12 * more details.
13 *
14 * You should have received a copy of the GNU General Public License along with
15 * this program; if not, write to the Free Software Foundation, Inc., 59 Temple
16 * Place - Suite 330, Boston, MA 02111-1307 USA.
17 *
18 */
19
20#include <linux/kernel.h>
21#include <linux/init.h>
22#include <linux/platform_device.h>
23#include <linux/dma-mapping.h>
fced80c7 24#include <linux/io.h>
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DW		 25#include <asm/irq.h>
26#include <asm/sizes.h>
37ebbcff 27#include <mach/irqs.h>
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DW		 28
29/* assumes CONTROLLER_ONLY# is never asserted in the ESSR register */
30#define IOP13XX_TPMI_MMR(dev) IOP13XX_REG_ADDR32_PHYS(0x48000 + (dev << 12))
31#define IOP13XX_TPMI_MEM(dev) IOP13XX_REG_ADDR32_PHYS(0x60000 + (dev << 13))
32#define IOP13XX_TPMI_CTRL(dev) IOP13XX_REG_ADDR32_PHYS(0x50000 + (dev << 10))
51198ea9 33#define IOP13XX_TPMI_IOP_CTRL(dev) (IOP13XX_TPMI_CTRL(dev) + 0x2000)
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DW		 34#define IOP13XX_TPMI_MMR_SIZE (SZ_4K - 1)
35#define IOP13XX_TPMI_MEM_SIZE (255)
36#define IOP13XX_TPMI_MEM_CTRL (SZ_1K - 1)
37#define IOP13XX_TPMI_RESOURCE_MMR 0
38#define IOP13XX_TPMI_RESOURCE_MEM 1
39#define IOP13XX_TPMI_RESOURCE_CTRL 2
51198ea9
DW		 40#define IOP13XX_TPMI_RESOURCE_IOP_CTRL 3
41#define IOP13XX_TPMI_RESOURCE_IRQ 4
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DW		 42
43static struct resource iop13xx_tpmi_0_resources[] = {
44 [IOP13XX_TPMI_RESOURCE_MMR] = {
45 .start = IOP13XX_TPMI_MMR(4), /* tpmi0 starts at dev == 4 */
46 .end = IOP13XX_TPMI_MMR(4) + IOP13XX_TPMI_MMR_SIZE,
47 .flags = IORESOURCE_MEM,
48 },
49 [IOP13XX_TPMI_RESOURCE_MEM] = {
50 .start = IOP13XX_TPMI_MEM(0),
51 .end = IOP13XX_TPMI_MEM(0) + IOP13XX_TPMI_MEM_SIZE,
52 .flags = IORESOURCE_MEM,
53 },
54 [IOP13XX_TPMI_RESOURCE_CTRL] = {
55 .start = IOP13XX_TPMI_CTRL(0),
56 .end = IOP13XX_TPMI_CTRL(0) + IOP13XX_TPMI_MEM_CTRL,
57 .flags = IORESOURCE_MEM,
58 },
51198ea9
DW		 59 [IOP13XX_TPMI_RESOURCE_IOP_CTRL] = {
60 .start = IOP13XX_TPMI_IOP_CTRL(0),
61 .end = IOP13XX_TPMI_IOP_CTRL(0) + IOP13XX_TPMI_MEM_CTRL,
62 .flags = IORESOURCE_MEM,
63 },
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DW		 64 [IOP13XX_TPMI_RESOURCE_IRQ] = {
65 .start = IRQ_IOP13XX_TPMI0_OUT,
66 .end = IRQ_IOP13XX_TPMI0_OUT,
67 .flags = IORESOURCE_IRQ
68 }
69};
70
71static struct resource iop13xx_tpmi_1_resources[] = {
72 [IOP13XX_TPMI_RESOURCE_MMR] = {
73 .start = IOP13XX_TPMI_MMR(1),
74 .end = IOP13XX_TPMI_MMR(1) + IOP13XX_TPMI_MMR_SIZE,
75 .flags = IORESOURCE_MEM,
76 },
77 [IOP13XX_TPMI_RESOURCE_MEM] = {
78 .start = IOP13XX_TPMI_MEM(1),
79 .end = IOP13XX_TPMI_MEM(1) + IOP13XX_TPMI_MEM_SIZE,
80 .flags = IORESOURCE_MEM,
81 },
82 [IOP13XX_TPMI_RESOURCE_CTRL] = {
83 .start = IOP13XX_TPMI_CTRL(1),
84 .end = IOP13XX_TPMI_CTRL(1) + IOP13XX_TPMI_MEM_CTRL,
85 .flags = IORESOURCE_MEM,
86 },
51198ea9
DW		 87 [IOP13XX_TPMI_RESOURCE_IOP_CTRL] = {
88 .start = IOP13XX_TPMI_IOP_CTRL(1),
89 .end = IOP13XX_TPMI_IOP_CTRL(1) + IOP13XX_TPMI_MEM_CTRL,
90 .flags = IORESOURCE_MEM,
91 },
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DW		 92 [IOP13XX_TPMI_RESOURCE_IRQ] = {
93 .start = IRQ_IOP13XX_TPMI1_OUT,
94 .end = IRQ_IOP13XX_TPMI1_OUT,
95 .flags = IORESOURCE_IRQ
96 }
97};
98
99static struct resource iop13xx_tpmi_2_resources[] = {
100 [IOP13XX_TPMI_RESOURCE_MMR] = {
101 .start = IOP13XX_TPMI_MMR(2),
102 .end = IOP13XX_TPMI_MMR(2) + IOP13XX_TPMI_MMR_SIZE,
103 .flags = IORESOURCE_MEM,
104 },
105 [IOP13XX_TPMI_RESOURCE_MEM] = {
106 .start = IOP13XX_TPMI_MEM(2),
107 .end = IOP13XX_TPMI_MEM(2) + IOP13XX_TPMI_MEM_SIZE,
108 .flags = IORESOURCE_MEM,
109 },
110 [IOP13XX_TPMI_RESOURCE_CTRL] = {
111 .start = IOP13XX_TPMI_CTRL(2),
112 .end = IOP13XX_TPMI_CTRL(2) + IOP13XX_TPMI_MEM_CTRL,
113 .flags = IORESOURCE_MEM,
114 },
51198ea9
DW		 115 [IOP13XX_TPMI_RESOURCE_IOP_CTRL] = {
116 .start = IOP13XX_TPMI_IOP_CTRL(2),
117 .end = IOP13XX_TPMI_IOP_CTRL(2) + IOP13XX_TPMI_MEM_CTRL,
118 .flags = IORESOURCE_MEM,
119 },
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DW		 120 [IOP13XX_TPMI_RESOURCE_IRQ] = {
121 .start = IRQ_IOP13XX_TPMI2_OUT,
122 .end = IRQ_IOP13XX_TPMI2_OUT,
123 .flags = IORESOURCE_IRQ
124 }
125};
126
127static struct resource iop13xx_tpmi_3_resources[] = {
128 [IOP13XX_TPMI_RESOURCE_MMR] = {
129 .start = IOP13XX_TPMI_MMR(3),
130 .end = IOP13XX_TPMI_MMR(3) + IOP13XX_TPMI_MMR_SIZE,
131 .flags = IORESOURCE_MEM,
132 },
133 [IOP13XX_TPMI_RESOURCE_MEM] = {
134 .start = IOP13XX_TPMI_MEM(3),
135 .end = IOP13XX_TPMI_MEM(3) + IOP13XX_TPMI_MEM_SIZE,
136 .flags = IORESOURCE_MEM,
137 },
138 [IOP13XX_TPMI_RESOURCE_CTRL] = {
139 .start = IOP13XX_TPMI_CTRL(3),
140 .end = IOP13XX_TPMI_CTRL(3) + IOP13XX_TPMI_MEM_CTRL,
141 .flags = IORESOURCE_MEM,
142 },
51198ea9
DW		 143 [IOP13XX_TPMI_RESOURCE_IOP_CTRL] = {
144 .start = IOP13XX_TPMI_IOP_CTRL(3),
145 .end = IOP13XX_TPMI_IOP_CTRL(3) + IOP13XX_TPMI_MEM_CTRL,
146 .flags = IORESOURCE_MEM,
147 },
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DW		 148 [IOP13XX_TPMI_RESOURCE_IRQ] = {
149 .start = IRQ_IOP13XX_TPMI3_OUT,
150 .end = IRQ_IOP13XX_TPMI3_OUT,
151 .flags = IORESOURCE_IRQ
152 }
153};
154
6a35528a 155u64 iop13xx_tpmi_mask = DMA_BIT_MASK(64);
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DW		 156static struct platform_device iop13xx_tpmi_0_device = {
157 .name = "iop-tpmi",
158 .id = 0,
51198ea9 159 .num_resources = ARRAY_SIZE(iop13xx_tpmi_0_resources),
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DW		 160 .resource = iop13xx_tpmi_0_resources,
161 .dev = {
162 .dma_mask = &iop13xx_tpmi_mask,
6a35528a 163 .coherent_dma_mask = DMA_BIT_MASK(64),
d2dd8b1f
DW		 164 },
165};
166
167static struct platform_device iop13xx_tpmi_1_device = {
168 .name = "iop-tpmi",
169 .id = 1,
51198ea9 170 .num_resources = ARRAY_SIZE(iop13xx_tpmi_1_resources),
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DW		 171 .resource = iop13xx_tpmi_1_resources,
172 .dev = {
173 .dma_mask = &iop13xx_tpmi_mask,
6a35528a 174 .coherent_dma_mask = DMA_BIT_MASK(64),
d2dd8b1f
DW		 175 },
176};
177
178static struct platform_device iop13xx_tpmi_2_device = {
179 .name = "iop-tpmi",
180 .id = 2,
51198ea9 181 .num_resources = ARRAY_SIZE(iop13xx_tpmi_2_resources),
d2dd8b1f
DW		 182 .resource = iop13xx_tpmi_2_resources,
183 .dev = {
184 .dma_mask = &iop13xx_tpmi_mask,
6a35528a 185 .coherent_dma_mask = DMA_BIT_MASK(64),
d2dd8b1f
DW		 186 },
187};
188
189static struct platform_device iop13xx_tpmi_3_device = {
190 .name = "iop-tpmi",
191 .id = 3,
51198ea9 192 .num_resources = ARRAY_SIZE(iop13xx_tpmi_3_resources),
d2dd8b1f
DW		 193 .resource = iop13xx_tpmi_3_resources,
194 .dev = {
195 .dma_mask = &iop13xx_tpmi_mask,
6a35528a 196 .coherent_dma_mask = DMA_BIT_MASK(64),
d2dd8b1f
DW		 197 },
198};
199
200__init void iop13xx_add_tpmi_devices(void)
201{
202 unsigned short device_id;
203
204 /* tpmi's not present on iop341 or iop342 */
205 if (__raw_readl(IOP13XX_ESSR0) & IOP13XX_INTERFACE_SEL_PCIX)
206 /* ATUE must be present */
207 device_id = __raw_readw(IOP13XX_ATUE_DID);
208 else
209 /* ATUX must be present */
210 device_id = __raw_readw(IOP13XX_ATUX_DID);
211
212 switch (device_id) {
213 /* iop34[1|2] 0-tpmi */
214 case 0x3380:
215 case 0x3384:
216 case 0x3388:
217 case 0x338c:
218 case 0x3382:
219 case 0x3386:
220 case 0x338a:
221 case 0x338e:
222 return;
223 /* iop348 1-tpmi */
224 case 0x3310:
225 case 0x3312:
226 case 0x3314:
227 case 0x3318:
228 case 0x331a:
229 case 0x331c:
230 case 0x33c0:
231 case 0x33c2:
232 case 0x33c4:
233 case 0x33c8:
234 case 0x33ca:
235 case 0x33cc:
236 case 0x33b0:
237 case 0x33b2:
238 case 0x33b4:
239 case 0x33b8:
240 case 0x33ba:
241 case 0x33bc:
242 case 0x3320:
243 case 0x3322:
244 case 0x3324:
245 case 0x3328:
246 case 0x332a:
247 case 0x332c:
248 platform_device_register(&iop13xx_tpmi_0_device);
249 return;
250 default:
251 platform_device_register(&iop13xx_tpmi_0_device);
252 platform_device_register(&iop13xx_tpmi_1_device);
253 platform_device_register(&iop13xx_tpmi_2_device);
254 platform_device_register(&iop13xx_tpmi_3_device);
255 return;
256 }
257}
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