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
|
/*
* mach-davinci/devices.c
*
* DaVinci platform device setup/initialization
*
* 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; either version 2 of the License, or
* (at your option) any later version.
*/
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/dma-mapping.h>
#include <linux/io.h>
#include <asm/mach/map.h>
#include <mach/hardware.h>
#include <mach/i2c.h>
#include <mach/irqs.h>
#include <mach/cputype.h>
#include <mach/mux.h>
#include <mach/edma.h>
#include <mach/mmc.h>
#include <mach/time.h>
#define DAVINCI_I2C_BASE 0x01C21000
#define DAVINCI_MMCSD0_BASE 0x01E10000
#define DM355_MMCSD0_BASE 0x01E11000
#define DM355_MMCSD1_BASE 0x01E00000
static struct resource i2c_resources[] = {
{
.start = DAVINCI_I2C_BASE,
.end = DAVINCI_I2C_BASE + 0x40,
.flags = IORESOURCE_MEM,
},
{
.start = IRQ_I2C,
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device davinci_i2c_device = {
.name = "i2c_davinci",
.id = 1,
.num_resources = ARRAY_SIZE(i2c_resources),
.resource = i2c_resources,
};
void __init davinci_init_i2c(struct davinci_i2c_platform_data *pdata)
{
if (cpu_is_davinci_dm644x())
davinci_cfg_reg(DM644X_I2C);
davinci_i2c_device.dev.platform_data = pdata;
(void) platform_device_register(&davinci_i2c_device);
}
#if defined(CONFIG_MMC_DAVINCI) || defined(CONFIG_MMC_DAVINCI_MODULE)
static u64 mmcsd0_dma_mask = DMA_32BIT_MASK;
static struct resource mmcsd0_resources[] = {
{
/* different on dm355 */
.start = DAVINCI_MMCSD0_BASE,
.end = DAVINCI_MMCSD0_BASE + SZ_4K - 1,
.flags = IORESOURCE_MEM,
},
/* IRQs: MMC/SD, then SDIO */
{
.start = IRQ_MMCINT,
.flags = IORESOURCE_IRQ,
}, {
/* different on dm355 */
.start = IRQ_SDIOINT,
.flags = IORESOURCE_IRQ,
},
/* DMA channels: RX, then TX */
{
.start = DAVINCI_DMA_MMCRXEVT,
.flags = IORESOURCE_DMA,
}, {
.start = DAVINCI_DMA_MMCTXEVT,
.flags = IORESOURCE_DMA,
},
};
static struct platform_device davinci_mmcsd0_device = {
.name = "davinci_mmc",
.id = 0,
.dev = {
.dma_mask = &mmcsd0_dma_mask,
.coherent_dma_mask = DMA_32BIT_MASK,
},
.num_resources = ARRAY_SIZE(mmcsd0_resources),
.resource = mmcsd0_resources,
};
static u64 mmcsd1_dma_mask = DMA_32BIT_MASK;
static struct resource mmcsd1_resources[] = {
{
.start = DM355_MMCSD1_BASE,
.end = DM355_MMCSD1_BASE + SZ_4K - 1,
.flags = IORESOURCE_MEM,
},
/* IRQs: MMC/SD, then SDIO */
{
.start = IRQ_DM355_MMCINT1,
.flags = IORESOURCE_IRQ,
}, {
.start = IRQ_DM355_SDIOINT1,
.flags = IORESOURCE_IRQ,
},
/* DMA channels: RX, then TX */
{
.start = 30, /* rx */
.flags = IORESOURCE_DMA,
}, {
.start = 31, /* tx */
.flags = IORESOURCE_DMA,
},
};
static struct platform_device davinci_mmcsd1_device = {
.name = "davinci_mmc",
.id = 1,
.dev = {
.dma_mask = &mmcsd1_dma_mask,
.coherent_dma_mask = DMA_32BIT_MASK,
},
.num_resources = ARRAY_SIZE(mmcsd1_resources),
.resource = mmcsd1_resources,
};
void __init davinci_setup_mmc(int module, struct davinci_mmc_config *config)
{
struct platform_device *pdev = NULL;
if (WARN_ON(cpu_is_davinci_dm646x()))
return;
/* REVISIT: update PINMUX, ARM_IRQMUX, and EDMA_EVTMUX here too;
* for example if MMCSD1 is used for SDIO, maybe DAT2 is unused.
*
* FIXME dm6441 (no MMC/SD), dm357 (one), and dm335 (two) are
* not handled right here ...
*/
switch (module) {
case 1:
if (!cpu_is_davinci_dm355())
break;
/* REVISIT we may not need all these pins if e.g. this
* is a hard-wired SDIO device...
*/
davinci_cfg_reg(DM355_SD1_CMD);
davinci_cfg_reg(DM355_SD1_CLK);
davinci_cfg_reg(DM355_SD1_DATA0);
davinci_cfg_reg(DM355_SD1_DATA1);
davinci_cfg_reg(DM355_SD1_DATA2);
davinci_cfg_reg(DM355_SD1_DATA3);
pdev = &davinci_mmcsd1_device;
break;
case 0:
if (cpu_is_davinci_dm355()) {
mmcsd0_resources[0].start = DM355_MMCSD0_BASE;
mmcsd0_resources[0].end = DM355_MMCSD0_BASE + SZ_4K - 1;
mmcsd0_resources[2].start = IRQ_DM355_SDIOINT0;
/* expose all 6 MMC0 signals: CLK, CMD, DATA[0..3] */
davinci_cfg_reg(DM355_MMCSD0);
/* enable RX EDMA */
davinci_cfg_reg(DM355_EVT26_MMC0_RX);
}
else if (cpu_is_davinci_dm644x()) {
/* REVISIT: should this be in board-init code? */
void __iomem *base =
IO_ADDRESS(DAVINCI_SYSTEM_MODULE_BASE);
/* Power-on 3.3V IO cells */
__raw_writel(0, base + DM64XX_VDD3P3V_PWDN);
/*Set up the pull regiter for MMC */
davinci_cfg_reg(DM644X_MSTK);
}
pdev = &davinci_mmcsd0_device;
break;
}
if (WARN_ON(!pdev))
return;
pdev->dev.platform_data = config;
platform_device_register(pdev);
}
#else
void __init davinci_setup_mmc(int module, struct davinci_mmc_config *config)
{
}
#endif
/*-------------------------------------------------------------------------*/
static struct resource wdt_resources[] = {
{
.flags = IORESOURCE_MEM,
},
};
struct platform_device davinci_wdt_device = {
.name = "watchdog",
.id = -1,
.num_resources = ARRAY_SIZE(wdt_resources),
.resource = wdt_resources,
};
static void davinci_init_wdt(void)
{
struct davinci_soc_info *soc_info = &davinci_soc_info;
wdt_resources[0].start = (resource_size_t)soc_info->wdt_base;
wdt_resources[0].end = (resource_size_t)soc_info->wdt_base + SZ_1K - 1;
platform_device_register(&davinci_wdt_device);
}
/*-------------------------------------------------------------------------*/
struct davinci_timer_instance davinci_timer_instance[2] = {
{
.base = IO_ADDRESS(DAVINCI_TIMER0_BASE),
.bottom_irq = IRQ_TINT0_TINT12,
.top_irq = IRQ_TINT0_TINT34,
},
{
.base = IO_ADDRESS(DAVINCI_TIMER1_BASE),
.bottom_irq = IRQ_TINT1_TINT12,
.top_irq = IRQ_TINT1_TINT34,
},
};
/*-------------------------------------------------------------------------*/
#if defined(CONFIG_TI_DAVINCI_EMAC) || defined(CONFIG_TI_DAVINCI_EMAC_MODULE)
void davinci_init_emac(struct emac_platform_data *pdata)
{
DECLARE_MAC_BUF(buf);
if (cpu_is_davinci_dm644x())
dm644x_init_emac(pdata);
else if (cpu_is_davinci_dm646x())
dm646x_init_emac(pdata);
/* if valid MAC exists, don't re-register */
if (is_valid_ether_addr(pdata->mac_addr))
return;
else {
/* Use random MAC if none passed */
random_ether_addr(pdata->mac_addr);
printk(KERN_WARNING "%s: using random MAC addr: %s\n",
__func__, print_mac(buf, pdata->mac_addr));
}
}
#else
void davinci_init_emac(struct emac_platform_data *unused) {}
#endif
/*-------------------------------------------------------------------------*/
static int __init davinci_init_devices(void)
{
/* please keep these calls, and their implementations above,
* in alphabetical order so they're easier to sort through.
*/
davinci_init_wdt();
return 0;
}
arch_initcall(davinci_init_devices);
|
