Merge branch 'davinci-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...
[~shefty/rdma-dev.git] / arch / arm / mach-davinci / devices.c
1 /*
2  * mach-davinci/devices.c
3  *
4  * DaVinci platform device setup/initialization
5  *
6  * This program is free software; you can redistribute it and/or modify
7  * it under the terms of the GNU General Public License as published by
8  * the Free Software Foundation; either version 2 of the License, or
9  * (at your option) any later version.
10  */
11
12 #include <linux/init.h>
13 #include <linux/platform_device.h>
14 #include <linux/dma-mapping.h>
15 #include <linux/io.h>
16
17 #include <mach/hardware.h>
18 #include <mach/i2c.h>
19 #include <mach/irqs.h>
20 #include <mach/cputype.h>
21 #include <mach/mux.h>
22 #include <mach/edma.h>
23 #include <mach/mmc.h>
24 #include <mach/time.h>
25
26 #include "clock.h"
27
28 #define DAVINCI_I2C_BASE             0x01C21000
29 #define DAVINCI_ATA_BASE             0x01C66000
30 #define DAVINCI_MMCSD0_BASE          0x01E10000
31 #define DM355_MMCSD0_BASE            0x01E11000
32 #define DM355_MMCSD1_BASE            0x01E00000
33 #define DM365_MMCSD0_BASE            0x01D11000
34 #define DM365_MMCSD1_BASE            0x01D00000
35
36 static struct resource i2c_resources[] = {
37         {
38                 .start          = DAVINCI_I2C_BASE,
39                 .end            = DAVINCI_I2C_BASE + 0x40,
40                 .flags          = IORESOURCE_MEM,
41         },
42         {
43                 .start          = IRQ_I2C,
44                 .flags          = IORESOURCE_IRQ,
45         },
46 };
47
48 static struct platform_device davinci_i2c_device = {
49         .name           = "i2c_davinci",
50         .id             = 1,
51         .num_resources  = ARRAY_SIZE(i2c_resources),
52         .resource       = i2c_resources,
53 };
54
55 void __init davinci_init_i2c(struct davinci_i2c_platform_data *pdata)
56 {
57         if (cpu_is_davinci_dm644x())
58                 davinci_cfg_reg(DM644X_I2C);
59
60         davinci_i2c_device.dev.platform_data = pdata;
61         (void) platform_device_register(&davinci_i2c_device);
62 }
63
64 static struct resource ide_resources[] = {
65         {
66                 .start          = DAVINCI_ATA_BASE,
67                 .end            = DAVINCI_ATA_BASE + 0x7ff,
68                 .flags          = IORESOURCE_MEM,
69         },
70         {
71                 .start          = IRQ_IDE,
72                 .end            = IRQ_IDE,
73                 .flags          = IORESOURCE_IRQ,
74         },
75 };
76
77 static u64 ide_dma_mask = DMA_BIT_MASK(32);
78
79 static struct platform_device ide_device = {
80         .name           = "palm_bk3710",
81         .id             = -1,
82         .resource       = ide_resources,
83         .num_resources  = ARRAY_SIZE(ide_resources),
84         .dev = {
85                 .dma_mask               = &ide_dma_mask,
86                 .coherent_dma_mask      = DMA_BIT_MASK(32),
87         },
88 };
89
90 void __init davinci_init_ide(void)
91 {
92         if (cpu_is_davinci_dm644x()) {
93                 davinci_cfg_reg(DM644X_HPIEN_DISABLE);
94                 davinci_cfg_reg(DM644X_ATAEN);
95                 davinci_cfg_reg(DM644X_HDIREN);
96         } else if (cpu_is_davinci_dm646x()) {
97                 /* IRQ_DM646X_IDE is the same as IRQ_IDE */
98                 davinci_cfg_reg(DM646X_ATAEN);
99         } else {
100                 WARN_ON(1);
101                 return;
102         }
103
104         platform_device_register(&ide_device);
105 }
106
107 #if     defined(CONFIG_MMC_DAVINCI) || defined(CONFIG_MMC_DAVINCI_MODULE)
108
109 static u64 mmcsd0_dma_mask = DMA_BIT_MASK(32);
110
111 static struct resource mmcsd0_resources[] = {
112         {
113                 /* different on dm355 */
114                 .start = DAVINCI_MMCSD0_BASE,
115                 .end   = DAVINCI_MMCSD0_BASE + SZ_4K - 1,
116                 .flags = IORESOURCE_MEM,
117         },
118         /* IRQs:  MMC/SD, then SDIO */
119         {
120                 .start = IRQ_MMCINT,
121                 .flags = IORESOURCE_IRQ,
122         }, {
123                 /* different on dm355 */
124                 .start = IRQ_SDIOINT,
125                 .flags = IORESOURCE_IRQ,
126         },
127         /* DMA channels: RX, then TX */
128         {
129                 .start = EDMA_CTLR_CHAN(0, DAVINCI_DMA_MMCRXEVT),
130                 .flags = IORESOURCE_DMA,
131         }, {
132                 .start = EDMA_CTLR_CHAN(0, DAVINCI_DMA_MMCTXEVT),
133                 .flags = IORESOURCE_DMA,
134         },
135 };
136
137 static struct platform_device davinci_mmcsd0_device = {
138         .name = "davinci_mmc",
139         .id = 0,
140         .dev = {
141                 .dma_mask = &mmcsd0_dma_mask,
142                 .coherent_dma_mask = DMA_BIT_MASK(32),
143         },
144         .num_resources = ARRAY_SIZE(mmcsd0_resources),
145         .resource = mmcsd0_resources,
146 };
147
148 static u64 mmcsd1_dma_mask = DMA_BIT_MASK(32);
149
150 static struct resource mmcsd1_resources[] = {
151         {
152                 .start = DM355_MMCSD1_BASE,
153                 .end   = DM355_MMCSD1_BASE + SZ_4K - 1,
154                 .flags = IORESOURCE_MEM,
155         },
156         /* IRQs:  MMC/SD, then SDIO */
157         {
158                 .start = IRQ_DM355_MMCINT1,
159                 .flags = IORESOURCE_IRQ,
160         }, {
161                 .start = IRQ_DM355_SDIOINT1,
162                 .flags = IORESOURCE_IRQ,
163         },
164         /* DMA channels: RX, then TX */
165         {
166                 .start = EDMA_CTLR_CHAN(0, 30), /* rx */
167                 .flags = IORESOURCE_DMA,
168         }, {
169                 .start = EDMA_CTLR_CHAN(0, 31), /* tx */
170                 .flags = IORESOURCE_DMA,
171         },
172 };
173
174 static struct platform_device davinci_mmcsd1_device = {
175         .name = "davinci_mmc",
176         .id = 1,
177         .dev = {
178                 .dma_mask = &mmcsd1_dma_mask,
179                 .coherent_dma_mask = DMA_BIT_MASK(32),
180         },
181         .num_resources = ARRAY_SIZE(mmcsd1_resources),
182         .resource = mmcsd1_resources,
183 };
184
185
186 void __init davinci_setup_mmc(int module, struct davinci_mmc_config *config)
187 {
188         struct platform_device  *pdev = NULL;
189
190         if (WARN_ON(cpu_is_davinci_dm646x()))
191                 return;
192
193         /* REVISIT: update PINMUX, ARM_IRQMUX, and EDMA_EVTMUX here too;
194          * for example if MMCSD1 is used for SDIO, maybe DAT2 is unused.
195          *
196          * FIXME dm6441 (no MMC/SD), dm357 (one), and dm335 (two) are
197          * not handled right here ...
198          */
199         switch (module) {
200         case 1:
201                 if (cpu_is_davinci_dm355()) {
202                         /* REVISIT we may not need all these pins if e.g. this
203                          * is a hard-wired SDIO device...
204                          */
205                         davinci_cfg_reg(DM355_SD1_CMD);
206                         davinci_cfg_reg(DM355_SD1_CLK);
207                         davinci_cfg_reg(DM355_SD1_DATA0);
208                         davinci_cfg_reg(DM355_SD1_DATA1);
209                         davinci_cfg_reg(DM355_SD1_DATA2);
210                         davinci_cfg_reg(DM355_SD1_DATA3);
211                 } else if (cpu_is_davinci_dm365()) {
212                         void __iomem *pupdctl1 =
213                                 IO_ADDRESS(DAVINCI_SYSTEM_MODULE_BASE + 0x7c);
214
215                         /* Configure pull down control */
216                         __raw_writel((__raw_readl(pupdctl1) & ~0xfc0),
217                                         pupdctl1);
218
219                         mmcsd1_resources[0].start = DM365_MMCSD1_BASE;
220                         mmcsd1_resources[0].end = DM365_MMCSD1_BASE +
221                                                         SZ_4K - 1;
222                         mmcsd1_resources[2].start = IRQ_DM365_SDIOINT1;
223                 } else
224                         break;
225
226                 pdev = &davinci_mmcsd1_device;
227                 break;
228         case 0:
229                 if (cpu_is_davinci_dm355()) {
230                         mmcsd0_resources[0].start = DM355_MMCSD0_BASE;
231                         mmcsd0_resources[0].end = DM355_MMCSD0_BASE + SZ_4K - 1;
232                         mmcsd0_resources[2].start = IRQ_DM355_SDIOINT0;
233
234                         /* expose all 6 MMC0 signals:  CLK, CMD, DATA[0..3] */
235                         davinci_cfg_reg(DM355_MMCSD0);
236
237                         /* enable RX EDMA */
238                         davinci_cfg_reg(DM355_EVT26_MMC0_RX);
239                 } else if (cpu_is_davinci_dm365()) {
240                         mmcsd0_resources[0].start = DM365_MMCSD0_BASE;
241                         mmcsd0_resources[0].end = DM365_MMCSD0_BASE +
242                                                         SZ_4K - 1;
243                         mmcsd0_resources[2].start = IRQ_DM365_SDIOINT0;
244                 } else if (cpu_is_davinci_dm644x()) {
245                         /* REVISIT: should this be in board-init code? */
246                         void __iomem *base =
247                                 IO_ADDRESS(DAVINCI_SYSTEM_MODULE_BASE);
248
249                         /* Power-on 3.3V IO cells */
250                         __raw_writel(0, base + DM64XX_VDD3P3V_PWDN);
251                         /*Set up the pull regiter for MMC */
252                         davinci_cfg_reg(DM644X_MSTK);
253                 }
254
255                 pdev = &davinci_mmcsd0_device;
256                 break;
257         }
258
259         if (WARN_ON(!pdev))
260                 return;
261
262         pdev->dev.platform_data = config;
263         platform_device_register(pdev);
264 }
265
266 #else
267
268 void __init davinci_setup_mmc(int module, struct davinci_mmc_config *config)
269 {
270 }
271
272 #endif
273
274 /*-------------------------------------------------------------------------*/
275
276 static struct resource wdt_resources[] = {
277         {
278                 .start  = DAVINCI_WDOG_BASE,
279                 .end    = DAVINCI_WDOG_BASE + SZ_1K - 1,
280                 .flags  = IORESOURCE_MEM,
281         },
282 };
283
284 struct platform_device davinci_wdt_device = {
285         .name           = "watchdog",
286         .id             = -1,
287         .num_resources  = ARRAY_SIZE(wdt_resources),
288         .resource       = wdt_resources,
289 };
290
291 static void davinci_init_wdt(void)
292 {
293         platform_device_register(&davinci_wdt_device);
294 }
295
296 /*-------------------------------------------------------------------------*/
297
298 struct platform_device davinci_pcm_device = {
299         .name           = "davinci-pcm-audio",
300         .id             = -1,
301 };
302
303 static void davinci_init_pcm(void)
304 {
305         platform_device_register(&davinci_pcm_device);
306 }
307
308 /*-------------------------------------------------------------------------*/
309
310 struct davinci_timer_instance davinci_timer_instance[2] = {
311         {
312                 .base           = DAVINCI_TIMER0_BASE,
313                 .bottom_irq     = IRQ_TINT0_TINT12,
314                 .top_irq        = IRQ_TINT0_TINT34,
315         },
316         {
317                 .base           = DAVINCI_TIMER1_BASE,
318                 .bottom_irq     = IRQ_TINT1_TINT12,
319                 .top_irq        = IRQ_TINT1_TINT34,
320         },
321 };
322
323 /*-------------------------------------------------------------------------*/
324
325 static int __init davinci_init_devices(void)
326 {
327         /* please keep these calls, and their implementations above,
328          * in alphabetical order so they're easier to sort through.
329          */
330         davinci_init_pcm();
331         davinci_init_wdt();
332
333         return 0;
334 }
335 arch_initcall(davinci_init_devices);
336