blob: 50c0156b42628db2402967054430dcce027004bf [file] [log] [blame]
Komal Shahd395e6a2008-09-07 23:41:28 -07001/*
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
Komal Shahd395e6a2008-09-07 23:41:28 -070012#include <linux/init.h>
13#include <linux/platform_device.h>
14#include <linux/dma-mapping.h>
15#include <linux/io.h>
16
Komal Shahd395e6a2008-09-07 23:41:28 -070017#include <mach/hardware.h>
18#include <mach/i2c.h>
Russell King80b02c12009-01-08 10:01:47 +000019#include <mach/irqs.h>
Kevin Hilman5526b3f2009-04-14 09:50:37 -050020#include <mach/cputype.h>
21#include <mach/mux.h>
Kevin Hilman2dbf56ae2009-05-11 15:55:03 -070022#include <mach/edma.h>
23#include <mach/mmc.h>
Mark A. Greerf64691b2009-04-15 12:40:11 -070024#include <mach/time.h>
Komal Shahd395e6a2008-09-07 23:41:28 -070025
Kevin Hilman28552c22010-02-25 15:36:38 -080026#include "clock.h"
27
Kevin Hilmanf5c122d2009-04-14 07:04:16 -050028#define DAVINCI_I2C_BASE 0x01C21000
Sergei Shtylyov7a9978a2010-04-21 18:11:33 +040029#define DAVINCI_ATA_BASE 0x01C66000
Kevin Hilman2dbf56ae2009-05-11 15:55:03 -070030#define DAVINCI_MMCSD0_BASE 0x01E10000
31#define DM355_MMCSD0_BASE 0x01E11000
32#define DM355_MMCSD1_BASE 0x01E00000
Sandeep Paulraj19ff3bf2009-06-20 13:58:32 -040033#define DM365_MMCSD0_BASE 0x01D11000
34#define DM365_MMCSD1_BASE 0x01D00000
Kevin Hilmanf5c122d2009-04-14 07:04:16 -050035
Manjunath Hadli1a717c02011-05-23 21:05:48 +053036/* System control register offsets */
37#define DM64XX_VDD3P3V_PWDN 0x48
38
Komal Shahd395e6a2008-09-07 23:41:28 -070039static struct resource i2c_resources[] = {
40 {
41 .start = DAVINCI_I2C_BASE,
42 .end = DAVINCI_I2C_BASE + 0x40,
43 .flags = IORESOURCE_MEM,
44 },
45 {
46 .start = IRQ_I2C,
47 .flags = IORESOURCE_IRQ,
48 },
49};
50
51static struct platform_device davinci_i2c_device = {
52 .name = "i2c_davinci",
53 .id = 1,
54 .num_resources = ARRAY_SIZE(i2c_resources),
55 .resource = i2c_resources,
56};
57
58void __init davinci_init_i2c(struct davinci_i2c_platform_data *pdata)
59{
Kevin Hilman5526b3f2009-04-14 09:50:37 -050060 if (cpu_is_davinci_dm644x())
61 davinci_cfg_reg(DM644X_I2C);
62
Komal Shahd395e6a2008-09-07 23:41:28 -070063 davinci_i2c_device.dev.platform_data = pdata;
64 (void) platform_device_register(&davinci_i2c_device);
65}
66
Sergei Shtylyov7a9978a2010-04-21 18:11:33 +040067static struct resource ide_resources[] = {
68 {
69 .start = DAVINCI_ATA_BASE,
70 .end = DAVINCI_ATA_BASE + 0x7ff,
71 .flags = IORESOURCE_MEM,
72 },
73 {
74 .start = IRQ_IDE,
75 .end = IRQ_IDE,
76 .flags = IORESOURCE_IRQ,
77 },
78};
79
80static u64 ide_dma_mask = DMA_BIT_MASK(32);
81
82static struct platform_device ide_device = {
83 .name = "palm_bk3710",
84 .id = -1,
85 .resource = ide_resources,
86 .num_resources = ARRAY_SIZE(ide_resources),
87 .dev = {
88 .dma_mask = &ide_dma_mask,
89 .coherent_dma_mask = DMA_BIT_MASK(32),
90 },
91};
92
93void __init davinci_init_ide(void)
94{
95 if (cpu_is_davinci_dm644x()) {
96 davinci_cfg_reg(DM644X_HPIEN_DISABLE);
97 davinci_cfg_reg(DM644X_ATAEN);
98 davinci_cfg_reg(DM644X_HDIREN);
99 } else if (cpu_is_davinci_dm646x()) {
100 /* IRQ_DM646X_IDE is the same as IRQ_IDE */
101 davinci_cfg_reg(DM646X_ATAEN);
102 } else {
103 WARN_ON(1);
104 return;
105 }
106
107 platform_device_register(&ide_device);
108}
109
Kevin Hilman2dbf56ae2009-05-11 15:55:03 -0700110#if defined(CONFIG_MMC_DAVINCI) || defined(CONFIG_MMC_DAVINCI_MODULE)
111
Kevin Hilmanb0958ae2009-05-29 18:54:14 +0100112static u64 mmcsd0_dma_mask = DMA_BIT_MASK(32);
Kevin Hilman2dbf56ae2009-05-11 15:55:03 -0700113
114static struct resource mmcsd0_resources[] = {
115 {
116 /* different on dm355 */
117 .start = DAVINCI_MMCSD0_BASE,
118 .end = DAVINCI_MMCSD0_BASE + SZ_4K - 1,
119 .flags = IORESOURCE_MEM,
120 },
121 /* IRQs: MMC/SD, then SDIO */
122 {
123 .start = IRQ_MMCINT,
124 .flags = IORESOURCE_IRQ,
125 }, {
126 /* different on dm355 */
127 .start = IRQ_SDIOINT,
128 .flags = IORESOURCE_IRQ,
129 },
130 /* DMA channels: RX, then TX */
131 {
Sudhakar Rajashekhara60902a22009-05-21 07:41:35 -0400132 .start = EDMA_CTLR_CHAN(0, DAVINCI_DMA_MMCRXEVT),
Kevin Hilman2dbf56ae2009-05-11 15:55:03 -0700133 .flags = IORESOURCE_DMA,
134 }, {
Sudhakar Rajashekhara60902a22009-05-21 07:41:35 -0400135 .start = EDMA_CTLR_CHAN(0, DAVINCI_DMA_MMCTXEVT),
Kevin Hilman2dbf56ae2009-05-11 15:55:03 -0700136 .flags = IORESOURCE_DMA,
137 },
138};
139
140static struct platform_device davinci_mmcsd0_device = {
141 .name = "davinci_mmc",
142 .id = 0,
143 .dev = {
144 .dma_mask = &mmcsd0_dma_mask,
Kevin Hilmanb0958ae2009-05-29 18:54:14 +0100145 .coherent_dma_mask = DMA_BIT_MASK(32),
Kevin Hilman2dbf56ae2009-05-11 15:55:03 -0700146 },
147 .num_resources = ARRAY_SIZE(mmcsd0_resources),
148 .resource = mmcsd0_resources,
149};
150
Kevin Hilmanb0958ae2009-05-29 18:54:14 +0100151static u64 mmcsd1_dma_mask = DMA_BIT_MASK(32);
Kevin Hilman2dbf56ae2009-05-11 15:55:03 -0700152
153static struct resource mmcsd1_resources[] = {
154 {
155 .start = DM355_MMCSD1_BASE,
156 .end = DM355_MMCSD1_BASE + SZ_4K - 1,
157 .flags = IORESOURCE_MEM,
158 },
159 /* IRQs: MMC/SD, then SDIO */
160 {
161 .start = IRQ_DM355_MMCINT1,
162 .flags = IORESOURCE_IRQ,
163 }, {
164 .start = IRQ_DM355_SDIOINT1,
165 .flags = IORESOURCE_IRQ,
166 },
167 /* DMA channels: RX, then TX */
168 {
Sudhakar Rajashekhara60902a22009-05-21 07:41:35 -0400169 .start = EDMA_CTLR_CHAN(0, 30), /* rx */
Kevin Hilman2dbf56ae2009-05-11 15:55:03 -0700170 .flags = IORESOURCE_DMA,
171 }, {
Sudhakar Rajashekhara60902a22009-05-21 07:41:35 -0400172 .start = EDMA_CTLR_CHAN(0, 31), /* tx */
Kevin Hilman2dbf56ae2009-05-11 15:55:03 -0700173 .flags = IORESOURCE_DMA,
174 },
175};
176
177static struct platform_device davinci_mmcsd1_device = {
178 .name = "davinci_mmc",
179 .id = 1,
180 .dev = {
181 .dma_mask = &mmcsd1_dma_mask,
Kevin Hilmanb0958ae2009-05-29 18:54:14 +0100182 .coherent_dma_mask = DMA_BIT_MASK(32),
Kevin Hilman2dbf56ae2009-05-11 15:55:03 -0700183 },
184 .num_resources = ARRAY_SIZE(mmcsd1_resources),
185 .resource = mmcsd1_resources,
186};
187
188
189void __init davinci_setup_mmc(int module, struct davinci_mmc_config *config)
190{
191 struct platform_device *pdev = NULL;
192
193 if (WARN_ON(cpu_is_davinci_dm646x()))
194 return;
195
196 /* REVISIT: update PINMUX, ARM_IRQMUX, and EDMA_EVTMUX here too;
197 * for example if MMCSD1 is used for SDIO, maybe DAT2 is unused.
198 *
199 * FIXME dm6441 (no MMC/SD), dm357 (one), and dm335 (two) are
200 * not handled right here ...
201 */
202 switch (module) {
203 case 1:
Sandeep Paulraj19ff3bf2009-06-20 13:58:32 -0400204 if (cpu_is_davinci_dm355()) {
205 /* REVISIT we may not need all these pins if e.g. this
206 * is a hard-wired SDIO device...
207 */
208 davinci_cfg_reg(DM355_SD1_CMD);
209 davinci_cfg_reg(DM355_SD1_CLK);
210 davinci_cfg_reg(DM355_SD1_DATA0);
211 davinci_cfg_reg(DM355_SD1_DATA1);
212 davinci_cfg_reg(DM355_SD1_DATA2);
213 davinci_cfg_reg(DM355_SD1_DATA3);
214 } else if (cpu_is_davinci_dm365()) {
215 void __iomem *pupdctl1 =
216 IO_ADDRESS(DAVINCI_SYSTEM_MODULE_BASE + 0x7c);
Kevin Hilman2dbf56ae2009-05-11 15:55:03 -0700217
Sandeep Paulraj19ff3bf2009-06-20 13:58:32 -0400218 /* Configure pull down control */
Sekhar Nori0a477f62010-07-14 17:09:45 +0530219 __raw_writel((__raw_readl(pupdctl1) & ~0xfc0),
Sandeep Paulraj19ff3bf2009-06-20 13:58:32 -0400220 pupdctl1);
221
222 mmcsd1_resources[0].start = DM365_MMCSD1_BASE;
223 mmcsd1_resources[0].end = DM365_MMCSD1_BASE +
224 SZ_4K - 1;
Phaneendra Kumareb5ba372009-08-27 17:06:56 -0400225 mmcsd1_resources[2].start = IRQ_DM365_SDIOINT1;
Sandeep Paulraj19ff3bf2009-06-20 13:58:32 -0400226 } else
227 break;
Kevin Hilman2dbf56ae2009-05-11 15:55:03 -0700228
229 pdev = &davinci_mmcsd1_device;
230 break;
231 case 0:
232 if (cpu_is_davinci_dm355()) {
233 mmcsd0_resources[0].start = DM355_MMCSD0_BASE;
234 mmcsd0_resources[0].end = DM355_MMCSD0_BASE + SZ_4K - 1;
235 mmcsd0_resources[2].start = IRQ_DM355_SDIOINT0;
236
237 /* expose all 6 MMC0 signals: CLK, CMD, DATA[0..3] */
238 davinci_cfg_reg(DM355_MMCSD0);
239
240 /* enable RX EDMA */
241 davinci_cfg_reg(DM355_EVT26_MMC0_RX);
Sandeep Paulraj19ff3bf2009-06-20 13:58:32 -0400242 } else if (cpu_is_davinci_dm365()) {
243 mmcsd0_resources[0].start = DM365_MMCSD0_BASE;
244 mmcsd0_resources[0].end = DM365_MMCSD0_BASE +
245 SZ_4K - 1;
246 mmcsd0_resources[2].start = IRQ_DM365_SDIOINT0;
247 } else if (cpu_is_davinci_dm644x()) {
Kevin Hilman2dbf56ae2009-05-11 15:55:03 -0700248 /* REVISIT: should this be in board-init code? */
249 void __iomem *base =
250 IO_ADDRESS(DAVINCI_SYSTEM_MODULE_BASE);
251
252 /* Power-on 3.3V IO cells */
253 __raw_writel(0, base + DM64XX_VDD3P3V_PWDN);
254 /*Set up the pull regiter for MMC */
255 davinci_cfg_reg(DM644X_MSTK);
256 }
257
258 pdev = &davinci_mmcsd0_device;
259 break;
260 }
261
262 if (WARN_ON(!pdev))
263 return;
264
265 pdev->dev.platform_data = config;
266 platform_device_register(pdev);
267}
268
269#else
270
271void __init davinci_setup_mmc(int module, struct davinci_mmc_config *config)
272{
273}
274
275#endif
276
Kevin Hilmanfb631382009-04-29 16:23:59 -0700277/*-------------------------------------------------------------------------*/
278
279static struct resource wdt_resources[] = {
280 {
Kevin Hilman5fcd2942009-06-03 12:24:50 -0700281 .start = DAVINCI_WDOG_BASE,
282 .end = DAVINCI_WDOG_BASE + SZ_1K - 1,
Kevin Hilmanfb631382009-04-29 16:23:59 -0700283 .flags = IORESOURCE_MEM,
284 },
285};
286
287struct platform_device davinci_wdt_device = {
288 .name = "watchdog",
289 .id = -1,
290 .num_resources = ARRAY_SIZE(wdt_resources),
291 .resource = wdt_resources,
292};
293
Sekhar Noric6121dd2011-12-05 11:29:46 +0100294void davinci_restart(char mode, const char *cmd)
295{
296 davinci_watchdog_reset(&davinci_wdt_device);
297}
298
Kevin Hilmanfb631382009-04-29 16:23:59 -0700299static void davinci_init_wdt(void)
300{
301 platform_device_register(&davinci_wdt_device);
302}
303
304/*-------------------------------------------------------------------------*/
305
Sekhar Nori7e9f1942011-06-05 17:33:33 +0530306static struct platform_device davinci_pcm_device = {
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000307 .name = "davinci-pcm-audio",
308 .id = -1,
309};
310
311static void davinci_init_pcm(void)
312{
313 platform_device_register(&davinci_pcm_device);
314}
315
316/*-------------------------------------------------------------------------*/
317
Mark A. Greerf64691b2009-04-15 12:40:11 -0700318struct davinci_timer_instance davinci_timer_instance[2] = {
319 {
Cyril Chemparathy1bcd38a2010-05-07 17:06:35 -0400320 .base = DAVINCI_TIMER0_BASE,
Mark A. Greerf64691b2009-04-15 12:40:11 -0700321 .bottom_irq = IRQ_TINT0_TINT12,
322 .top_irq = IRQ_TINT0_TINT34,
323 },
324 {
Cyril Chemparathy1bcd38a2010-05-07 17:06:35 -0400325 .base = DAVINCI_TIMER1_BASE,
Mark A. Greerf64691b2009-04-15 12:40:11 -0700326 .bottom_irq = IRQ_TINT1_TINT12,
327 .top_irq = IRQ_TINT1_TINT34,
328 },
329};
330
331/*-------------------------------------------------------------------------*/
332
Kevin Hilmanfb631382009-04-29 16:23:59 -0700333static int __init davinci_init_devices(void)
334{
335 /* please keep these calls, and their implementations above,
336 * in alphabetical order so they're easier to sort through.
337 */
Liam Girdwoodf0fba2a2010-03-17 20:15:21 +0000338 davinci_init_pcm();
Kevin Hilmanfb631382009-04-29 16:23:59 -0700339 davinci_init_wdt();
340
341 return 0;
342}
343arch_initcall(davinci_init_devices);
344