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d395e6ad KS |
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 | ||
d395e6ad KS |
12 | #include <linux/init.h> |
13 | #include <linux/platform_device.h> | |
14 | #include <linux/dma-mapping.h> | |
15 | #include <linux/io.h> | |
7b6d864b | 16 | #include <linux/reboot.h> |
d395e6ad | 17 | |
d395e6ad | 18 | #include <mach/hardware.h> |
ec2a0833 | 19 | #include <linux/platform_data/i2c-davinci.h> |
80b02c17 | 20 | #include <mach/irqs.h> |
5526b3f7 KH |
21 | #include <mach/cputype.h> |
22 | #include <mach/mux.h> | |
ec2a0833 | 23 | #include <linux/platform_data/mmc-davinci.h> |
f64691b3 | 24 | #include <mach/time.h> |
3ad7a42d MP |
25 | #include <linux/platform_data/edma.h> |
26 | ||
d395e6ad | 27 | |
5cfb19ac | 28 | #include "davinci.h" |
28552c2e KH |
29 | #include "clock.h" |
30 | ||
f5c122da | 31 | #define DAVINCI_I2C_BASE 0x01C21000 |
7a9978a1 | 32 | #define DAVINCI_ATA_BASE 0x01C66000 |
2dbf56ae KH |
33 | #define DAVINCI_MMCSD0_BASE 0x01E10000 |
34 | #define DM355_MMCSD0_BASE 0x01E11000 | |
35 | #define DM355_MMCSD1_BASE 0x01E00000 | |
19ff3bf2 SP |
36 | #define DM365_MMCSD0_BASE 0x01D11000 |
37 | #define DM365_MMCSD1_BASE 0x01D00000 | |
f5c122da | 38 | |
5cfb19ac MH |
39 | void __iomem *davinci_sysmod_base; |
40 | ||
41 | void davinci_map_sysmod(void) | |
42 | { | |
43 | davinci_sysmod_base = ioremap_nocache(DAVINCI_SYSTEM_MODULE_BASE, | |
44 | 0x800); | |
45 | /* | |
46 | * Throw a bug since a lot of board initialization code depends | |
47 | * on system module availability. ioremap() failing this early | |
48 | * need careful looking into anyway. | |
49 | */ | |
50 | BUG_ON(!davinci_sysmod_base); | |
51 | } | |
1a717c00 | 52 | |
d395e6ad KS |
53 | static struct resource i2c_resources[] = { |
54 | { | |
55 | .start = DAVINCI_I2C_BASE, | |
56 | .end = DAVINCI_I2C_BASE + 0x40, | |
57 | .flags = IORESOURCE_MEM, | |
58 | }, | |
59 | { | |
60 | .start = IRQ_I2C, | |
61 | .flags = IORESOURCE_IRQ, | |
62 | }, | |
63 | }; | |
64 | ||
65 | static struct platform_device davinci_i2c_device = { | |
66 | .name = "i2c_davinci", | |
67 | .id = 1, | |
68 | .num_resources = ARRAY_SIZE(i2c_resources), | |
69 | .resource = i2c_resources, | |
70 | }; | |
71 | ||
72 | void __init davinci_init_i2c(struct davinci_i2c_platform_data *pdata) | |
73 | { | |
5526b3f7 KH |
74 | if (cpu_is_davinci_dm644x()) |
75 | davinci_cfg_reg(DM644X_I2C); | |
76 | ||
d395e6ad KS |
77 | davinci_i2c_device.dev.platform_data = pdata; |
78 | (void) platform_device_register(&davinci_i2c_device); | |
79 | } | |
80 | ||
7a9978a1 SS |
81 | static struct resource ide_resources[] = { |
82 | { | |
83 | .start = DAVINCI_ATA_BASE, | |
84 | .end = DAVINCI_ATA_BASE + 0x7ff, | |
85 | .flags = IORESOURCE_MEM, | |
86 | }, | |
87 | { | |
88 | .start = IRQ_IDE, | |
89 | .end = IRQ_IDE, | |
90 | .flags = IORESOURCE_IRQ, | |
91 | }, | |
92 | }; | |
93 | ||
94 | static u64 ide_dma_mask = DMA_BIT_MASK(32); | |
95 | ||
96 | static struct platform_device ide_device = { | |
97 | .name = "palm_bk3710", | |
98 | .id = -1, | |
99 | .resource = ide_resources, | |
100 | .num_resources = ARRAY_SIZE(ide_resources), | |
101 | .dev = { | |
102 | .dma_mask = &ide_dma_mask, | |
103 | .coherent_dma_mask = DMA_BIT_MASK(32), | |
104 | }, | |
105 | }; | |
106 | ||
107 | void __init davinci_init_ide(void) | |
108 | { | |
109 | if (cpu_is_davinci_dm644x()) { | |
110 | davinci_cfg_reg(DM644X_HPIEN_DISABLE); | |
111 | davinci_cfg_reg(DM644X_ATAEN); | |
112 | davinci_cfg_reg(DM644X_HDIREN); | |
113 | } else if (cpu_is_davinci_dm646x()) { | |
114 | /* IRQ_DM646X_IDE is the same as IRQ_IDE */ | |
115 | davinci_cfg_reg(DM646X_ATAEN); | |
116 | } else { | |
117 | WARN_ON(1); | |
118 | return; | |
119 | } | |
120 | ||
121 | platform_device_register(&ide_device); | |
122 | } | |
123 | ||
a0a56db9 | 124 | #if IS_ENABLED(CONFIG_MMC_DAVINCI) |
2dbf56ae | 125 | |
b0958aed | 126 | static u64 mmcsd0_dma_mask = DMA_BIT_MASK(32); |
2dbf56ae KH |
127 | |
128 | static struct resource mmcsd0_resources[] = { | |
129 | { | |
130 | /* different on dm355 */ | |
131 | .start = DAVINCI_MMCSD0_BASE, | |
132 | .end = DAVINCI_MMCSD0_BASE + SZ_4K - 1, | |
133 | .flags = IORESOURCE_MEM, | |
134 | }, | |
135 | /* IRQs: MMC/SD, then SDIO */ | |
136 | { | |
137 | .start = IRQ_MMCINT, | |
138 | .flags = IORESOURCE_IRQ, | |
139 | }, { | |
140 | /* different on dm355 */ | |
141 | .start = IRQ_SDIOINT, | |
142 | .flags = IORESOURCE_IRQ, | |
143 | }, | |
2dbf56ae KH |
144 | }; |
145 | ||
146 | static struct platform_device davinci_mmcsd0_device = { | |
d7ca4c75 | 147 | .name = "dm6441-mmc", |
2dbf56ae KH |
148 | .id = 0, |
149 | .dev = { | |
150 | .dma_mask = &mmcsd0_dma_mask, | |
b0958aed | 151 | .coherent_dma_mask = DMA_BIT_MASK(32), |
2dbf56ae KH |
152 | }, |
153 | .num_resources = ARRAY_SIZE(mmcsd0_resources), | |
154 | .resource = mmcsd0_resources, | |
155 | }; | |
156 | ||
b0958aed | 157 | static u64 mmcsd1_dma_mask = DMA_BIT_MASK(32); |
2dbf56ae KH |
158 | |
159 | static struct resource mmcsd1_resources[] = { | |
160 | { | |
161 | .start = DM355_MMCSD1_BASE, | |
162 | .end = DM355_MMCSD1_BASE + SZ_4K - 1, | |
163 | .flags = IORESOURCE_MEM, | |
164 | }, | |
165 | /* IRQs: MMC/SD, then SDIO */ | |
166 | { | |
167 | .start = IRQ_DM355_MMCINT1, | |
168 | .flags = IORESOURCE_IRQ, | |
169 | }, { | |
170 | .start = IRQ_DM355_SDIOINT1, | |
171 | .flags = IORESOURCE_IRQ, | |
172 | }, | |
2dbf56ae KH |
173 | }; |
174 | ||
175 | static struct platform_device davinci_mmcsd1_device = { | |
d7ca4c75 | 176 | .name = "dm6441-mmc", |
2dbf56ae KH |
177 | .id = 1, |
178 | .dev = { | |
179 | .dma_mask = &mmcsd1_dma_mask, | |
b0958aed | 180 | .coherent_dma_mask = DMA_BIT_MASK(32), |
2dbf56ae KH |
181 | }, |
182 | .num_resources = ARRAY_SIZE(mmcsd1_resources), | |
183 | .resource = mmcsd1_resources, | |
184 | }; | |
185 | ||
186 | ||
187 | void __init davinci_setup_mmc(int module, struct davinci_mmc_config *config) | |
188 | { | |
189 | struct platform_device *pdev = NULL; | |
190 | ||
191 | if (WARN_ON(cpu_is_davinci_dm646x())) | |
192 | return; | |
193 | ||
194 | /* REVISIT: update PINMUX, ARM_IRQMUX, and EDMA_EVTMUX here too; | |
195 | * for example if MMCSD1 is used for SDIO, maybe DAT2 is unused. | |
196 | * | |
197 | * FIXME dm6441 (no MMC/SD), dm357 (one), and dm335 (two) are | |
198 | * not handled right here ... | |
199 | */ | |
200 | switch (module) { | |
201 | case 1: | |
19ff3bf2 SP |
202 | if (cpu_is_davinci_dm355()) { |
203 | /* REVISIT we may not need all these pins if e.g. this | |
204 | * is a hard-wired SDIO device... | |
205 | */ | |
206 | davinci_cfg_reg(DM355_SD1_CMD); | |
207 | davinci_cfg_reg(DM355_SD1_CLK); | |
208 | davinci_cfg_reg(DM355_SD1_DATA0); | |
209 | davinci_cfg_reg(DM355_SD1_DATA1); | |
210 | davinci_cfg_reg(DM355_SD1_DATA2); | |
211 | davinci_cfg_reg(DM355_SD1_DATA3); | |
212 | } else if (cpu_is_davinci_dm365()) { | |
19ff3bf2 | 213 | /* Configure pull down control */ |
5cfb19ac MH |
214 | unsigned v; |
215 | ||
216 | v = __raw_readl(DAVINCI_SYSMOD_VIRT(SYSMOD_PUPDCTL1)); | |
217 | __raw_writel(v & ~0xfc0, | |
218 | DAVINCI_SYSMOD_VIRT(SYSMOD_PUPDCTL1)); | |
19ff3bf2 SP |
219 | |
220 | mmcsd1_resources[0].start = DM365_MMCSD1_BASE; | |
221 | mmcsd1_resources[0].end = DM365_MMCSD1_BASE + | |
222 | SZ_4K - 1; | |
eb5ba378 | 223 | mmcsd1_resources[2].start = IRQ_DM365_SDIOINT1; |
d7ca4c75 | 224 | davinci_mmcsd1_device.name = "da830-mmc"; |
19ff3bf2 | 225 | } else |
2dbf56ae KH |
226 | break; |
227 | ||
2dbf56ae KH |
228 | pdev = &davinci_mmcsd1_device; |
229 | break; | |
230 | case 0: | |
231 | if (cpu_is_davinci_dm355()) { | |
232 | mmcsd0_resources[0].start = DM355_MMCSD0_BASE; | |
233 | mmcsd0_resources[0].end = DM355_MMCSD0_BASE + SZ_4K - 1; | |
234 | mmcsd0_resources[2].start = IRQ_DM355_SDIOINT0; | |
235 | ||
236 | /* expose all 6 MMC0 signals: CLK, CMD, DATA[0..3] */ | |
237 | davinci_cfg_reg(DM355_MMCSD0); | |
238 | ||
239 | /* enable RX EDMA */ | |
240 | davinci_cfg_reg(DM355_EVT26_MMC0_RX); | |
19ff3bf2 SP |
241 | } else if (cpu_is_davinci_dm365()) { |
242 | mmcsd0_resources[0].start = DM365_MMCSD0_BASE; | |
243 | mmcsd0_resources[0].end = DM365_MMCSD0_BASE + | |
244 | SZ_4K - 1; | |
245 | mmcsd0_resources[2].start = IRQ_DM365_SDIOINT0; | |
d7ca4c75 | 246 | davinci_mmcsd0_device.name = "da830-mmc"; |
19ff3bf2 | 247 | } else if (cpu_is_davinci_dm644x()) { |
2dbf56ae | 248 | /* REVISIT: should this be in board-init code? */ |
2dbf56ae | 249 | /* Power-on 3.3V IO cells */ |
5cfb19ac MH |
250 | __raw_writel(0, |
251 | DAVINCI_SYSMOD_VIRT(SYSMOD_VDD3P3VPWDN)); | |
2dbf56ae KH |
252 | /*Set up the pull regiter for MMC */ |
253 | davinci_cfg_reg(DM644X_MSTK); | |
254 | } | |
255 | ||
256 | pdev = &davinci_mmcsd0_device; | |
257 | break; | |
258 | } | |
259 | ||
260 | if (WARN_ON(!pdev)) | |
261 | return; | |
262 | ||
263 | pdev->dev.platform_data = config; | |
264 | platform_device_register(pdev); | |
265 | } | |
266 | ||
267 | #else | |
268 | ||
269 | void __init davinci_setup_mmc(int module, struct davinci_mmc_config *config) | |
270 | { | |
271 | } | |
272 | ||
273 | #endif | |
274 | ||
fb631387 KH |
275 | /*-------------------------------------------------------------------------*/ |
276 | ||
277 | static struct resource wdt_resources[] = { | |
278 | { | |
5fcd294d KH |
279 | .start = DAVINCI_WDOG_BASE, |
280 | .end = DAVINCI_WDOG_BASE + SZ_1K - 1, | |
fb631387 KH |
281 | .flags = IORESOURCE_MEM, |
282 | }, | |
283 | }; | |
284 | ||
285 | struct platform_device davinci_wdt_device = { | |
84374812 | 286 | .name = "davinci-wdt", |
fb631387 KH |
287 | .id = -1, |
288 | .num_resources = ARRAY_SIZE(wdt_resources), | |
289 | .resource = wdt_resources, | |
290 | }; | |
291 | ||
7b6d864b | 292 | void davinci_restart(enum reboot_mode mode, const char *cmd) |
c6121ddd SN |
293 | { |
294 | davinci_watchdog_reset(&davinci_wdt_device); | |
295 | } | |
296 | ||
1233090c | 297 | int davinci_init_wdt(void) |
fb631387 | 298 | { |
1233090c | 299 | return platform_device_register(&davinci_wdt_device); |
fb631387 KH |
300 | } |
301 | ||
9cc1515c PA |
302 | static struct platform_device davinci_gpio_device = { |
303 | .name = "davinci_gpio", | |
304 | .id = -1, | |
305 | }; | |
306 | ||
307 | int davinci_gpio_register(struct resource *res, int size, void *pdata) | |
308 | { | |
309 | davinci_gpio_device.resource = res; | |
310 | davinci_gpio_device.num_resources = size; | |
311 | davinci_gpio_device.dev.platform_data = pdata; | |
312 | return platform_device_register(&davinci_gpio_device); | |
313 | } | |
314 | ||
fb631387 KH |
315 | /*-------------------------------------------------------------------------*/ |
316 | ||
f0fba2ad LG |
317 | /*-------------------------------------------------------------------------*/ |
318 | ||
f64691b3 MG |
319 | struct davinci_timer_instance davinci_timer_instance[2] = { |
320 | { | |
1bcd38ad | 321 | .base = DAVINCI_TIMER0_BASE, |
f64691b3 MG |
322 | .bottom_irq = IRQ_TINT0_TINT12, |
323 | .top_irq = IRQ_TINT0_TINT34, | |
324 | }, | |
325 | { | |
1bcd38ad | 326 | .base = DAVINCI_TIMER1_BASE, |
f64691b3 MG |
327 | .bottom_irq = IRQ_TINT1_TINT12, |
328 | .top_irq = IRQ_TINT1_TINT34, | |
329 | }, | |
330 | }; | |
331 |