2 * mach-davinci/devices.c
4 * DaVinci platform device setup/initialization
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.
12 #include <linux/init.h>
13 #include <linux/platform_device.h>
14 #include <linux/dma-mapping.h>
16 #include <linux/reboot.h>
18 #include <mach/hardware.h>
19 #include <linux/platform_data/i2c-davinci.h>
20 #include <mach/irqs.h>
21 #include <mach/cputype.h>
23 #include <linux/platform_data/mmc-davinci.h>
24 #include <mach/time.h>
25 #include <linux/platform_data/edma.h>
31 #define DAVINCI_I2C_BASE 0x01C21000
32 #define DAVINCI_ATA_BASE 0x01C66000
33 #define DAVINCI_MMCSD0_BASE 0x01E10000
34 #define DM355_MMCSD0_BASE 0x01E11000
35 #define DM355_MMCSD1_BASE 0x01E00000
36 #define DM365_MMCSD0_BASE 0x01D11000
37 #define DM365_MMCSD1_BASE 0x01D00000
39 #define DAVINCI_DMA_MMCRXEVT 26
40 #define DAVINCI_DMA_MMCTXEVT 27
42 void __iomem
*davinci_sysmod_base
;
44 void davinci_map_sysmod(void)
46 davinci_sysmod_base
= ioremap_nocache(DAVINCI_SYSTEM_MODULE_BASE
,
49 * Throw a bug since a lot of board initialization code depends
50 * on system module availability. ioremap() failing this early
51 * need careful looking into anyway.
53 BUG_ON(!davinci_sysmod_base
);
56 static struct resource i2c_resources
[] = {
58 .start
= DAVINCI_I2C_BASE
,
59 .end
= DAVINCI_I2C_BASE
+ 0x40,
60 .flags
= IORESOURCE_MEM
,
64 .flags
= IORESOURCE_IRQ
,
68 static struct platform_device davinci_i2c_device
= {
69 .name
= "i2c_davinci",
71 .num_resources
= ARRAY_SIZE(i2c_resources
),
72 .resource
= i2c_resources
,
75 void __init
davinci_init_i2c(struct davinci_i2c_platform_data
*pdata
)
77 if (cpu_is_davinci_dm644x())
78 davinci_cfg_reg(DM644X_I2C
);
80 davinci_i2c_device
.dev
.platform_data
= pdata
;
81 (void) platform_device_register(&davinci_i2c_device
);
84 static struct resource ide_resources
[] = {
86 .start
= DAVINCI_ATA_BASE
,
87 .end
= DAVINCI_ATA_BASE
+ 0x7ff,
88 .flags
= IORESOURCE_MEM
,
93 .flags
= IORESOURCE_IRQ
,
97 static u64 ide_dma_mask
= DMA_BIT_MASK(32);
99 static struct platform_device ide_device
= {
100 .name
= "palm_bk3710",
102 .resource
= ide_resources
,
103 .num_resources
= ARRAY_SIZE(ide_resources
),
105 .dma_mask
= &ide_dma_mask
,
106 .coherent_dma_mask
= DMA_BIT_MASK(32),
110 void __init
davinci_init_ide(void)
112 if (cpu_is_davinci_dm644x()) {
113 davinci_cfg_reg(DM644X_HPIEN_DISABLE
);
114 davinci_cfg_reg(DM644X_ATAEN
);
115 davinci_cfg_reg(DM644X_HDIREN
);
116 } else if (cpu_is_davinci_dm646x()) {
117 /* IRQ_DM646X_IDE is the same as IRQ_IDE */
118 davinci_cfg_reg(DM646X_ATAEN
);
124 platform_device_register(&ide_device
);
127 #if IS_ENABLED(CONFIG_MMC_DAVINCI)
129 static u64 mmcsd0_dma_mask
= DMA_BIT_MASK(32);
131 static struct resource mmcsd0_resources
[] = {
133 /* different on dm355 */
134 .start
= DAVINCI_MMCSD0_BASE
,
135 .end
= DAVINCI_MMCSD0_BASE
+ SZ_4K
- 1,
136 .flags
= IORESOURCE_MEM
,
138 /* IRQs: MMC/SD, then SDIO */
141 .flags
= IORESOURCE_IRQ
,
143 /* different on dm355 */
144 .start
= IRQ_SDIOINT
,
145 .flags
= IORESOURCE_IRQ
,
147 /* DMA channels: RX, then TX */
149 .start
= EDMA_CTLR_CHAN(0, DAVINCI_DMA_MMCRXEVT
),
150 .flags
= IORESOURCE_DMA
,
152 .start
= EDMA_CTLR_CHAN(0, DAVINCI_DMA_MMCTXEVT
),
153 .flags
= IORESOURCE_DMA
,
157 static struct platform_device davinci_mmcsd0_device
= {
158 .name
= "dm6441-mmc",
161 .dma_mask
= &mmcsd0_dma_mask
,
162 .coherent_dma_mask
= DMA_BIT_MASK(32),
164 .num_resources
= ARRAY_SIZE(mmcsd0_resources
),
165 .resource
= mmcsd0_resources
,
168 static u64 mmcsd1_dma_mask
= DMA_BIT_MASK(32);
170 static struct resource mmcsd1_resources
[] = {
172 .start
= DM355_MMCSD1_BASE
,
173 .end
= DM355_MMCSD1_BASE
+ SZ_4K
- 1,
174 .flags
= IORESOURCE_MEM
,
176 /* IRQs: MMC/SD, then SDIO */
178 .start
= IRQ_DM355_MMCINT1
,
179 .flags
= IORESOURCE_IRQ
,
181 .start
= IRQ_DM355_SDIOINT1
,
182 .flags
= IORESOURCE_IRQ
,
184 /* DMA channels: RX, then TX */
186 .start
= EDMA_CTLR_CHAN(0, 30), /* rx */
187 .flags
= IORESOURCE_DMA
,
189 .start
= EDMA_CTLR_CHAN(0, 31), /* tx */
190 .flags
= IORESOURCE_DMA
,
194 static struct platform_device davinci_mmcsd1_device
= {
195 .name
= "dm6441-mmc",
198 .dma_mask
= &mmcsd1_dma_mask
,
199 .coherent_dma_mask
= DMA_BIT_MASK(32),
201 .num_resources
= ARRAY_SIZE(mmcsd1_resources
),
202 .resource
= mmcsd1_resources
,
206 void __init
davinci_setup_mmc(int module
, struct davinci_mmc_config
*config
)
208 struct platform_device
*pdev
= NULL
;
210 if (WARN_ON(cpu_is_davinci_dm646x()))
213 /* REVISIT: update PINMUX, ARM_IRQMUX, and EDMA_EVTMUX here too;
214 * for example if MMCSD1 is used for SDIO, maybe DAT2 is unused.
216 * FIXME dm6441 (no MMC/SD), dm357 (one), and dm335 (two) are
217 * not handled right here ...
221 if (cpu_is_davinci_dm355()) {
222 /* REVISIT we may not need all these pins if e.g. this
223 * is a hard-wired SDIO device...
225 davinci_cfg_reg(DM355_SD1_CMD
);
226 davinci_cfg_reg(DM355_SD1_CLK
);
227 davinci_cfg_reg(DM355_SD1_DATA0
);
228 davinci_cfg_reg(DM355_SD1_DATA1
);
229 davinci_cfg_reg(DM355_SD1_DATA2
);
230 davinci_cfg_reg(DM355_SD1_DATA3
);
231 } else if (cpu_is_davinci_dm365()) {
232 /* Configure pull down control */
235 v
= __raw_readl(DAVINCI_SYSMOD_VIRT(SYSMOD_PUPDCTL1
));
236 __raw_writel(v
& ~0xfc0,
237 DAVINCI_SYSMOD_VIRT(SYSMOD_PUPDCTL1
));
239 mmcsd1_resources
[0].start
= DM365_MMCSD1_BASE
;
240 mmcsd1_resources
[0].end
= DM365_MMCSD1_BASE
+
242 mmcsd1_resources
[2].start
= IRQ_DM365_SDIOINT1
;
243 davinci_mmcsd1_device
.name
= "da830-mmc";
247 pdev
= &davinci_mmcsd1_device
;
250 if (cpu_is_davinci_dm355()) {
251 mmcsd0_resources
[0].start
= DM355_MMCSD0_BASE
;
252 mmcsd0_resources
[0].end
= DM355_MMCSD0_BASE
+ SZ_4K
- 1;
253 mmcsd0_resources
[2].start
= IRQ_DM355_SDIOINT0
;
255 /* expose all 6 MMC0 signals: CLK, CMD, DATA[0..3] */
256 davinci_cfg_reg(DM355_MMCSD0
);
259 davinci_cfg_reg(DM355_EVT26_MMC0_RX
);
260 } else if (cpu_is_davinci_dm365()) {
261 mmcsd0_resources
[0].start
= DM365_MMCSD0_BASE
;
262 mmcsd0_resources
[0].end
= DM365_MMCSD0_BASE
+
264 mmcsd0_resources
[2].start
= IRQ_DM365_SDIOINT0
;
265 davinci_mmcsd0_device
.name
= "da830-mmc";
266 } else if (cpu_is_davinci_dm644x()) {
267 /* REVISIT: should this be in board-init code? */
268 /* Power-on 3.3V IO cells */
270 DAVINCI_SYSMOD_VIRT(SYSMOD_VDD3P3VPWDN
));
271 /*Set up the pull regiter for MMC */
272 davinci_cfg_reg(DM644X_MSTK
);
275 pdev
= &davinci_mmcsd0_device
;
282 pdev
->dev
.platform_data
= config
;
283 platform_device_register(pdev
);
288 void __init
davinci_setup_mmc(int module
, struct davinci_mmc_config
*config
)
294 /*-------------------------------------------------------------------------*/
296 static struct resource wdt_resources
[] = {
298 .start
= DAVINCI_WDOG_BASE
,
299 .end
= DAVINCI_WDOG_BASE
+ SZ_1K
- 1,
300 .flags
= IORESOURCE_MEM
,
304 struct platform_device davinci_wdt_device
= {
305 .name
= "davinci-wdt",
307 .num_resources
= ARRAY_SIZE(wdt_resources
),
308 .resource
= wdt_resources
,
311 void davinci_restart(enum reboot_mode mode
, const char *cmd
)
313 davinci_watchdog_reset(&davinci_wdt_device
);
316 int davinci_init_wdt(void)
318 return platform_device_register(&davinci_wdt_device
);
321 static struct platform_device davinci_gpio_device
= {
322 .name
= "davinci_gpio",
326 int davinci_gpio_register(struct resource
*res
, int size
, void *pdata
)
328 davinci_gpio_device
.resource
= res
;
329 davinci_gpio_device
.num_resources
= size
;
330 davinci_gpio_device
.dev
.platform_data
= pdata
;
331 return platform_device_register(&davinci_gpio_device
);
334 /*-------------------------------------------------------------------------*/
336 /*-------------------------------------------------------------------------*/
338 struct davinci_timer_instance davinci_timer_instance
[2] = {
340 .base
= DAVINCI_TIMER0_BASE
,
341 .bottom_irq
= IRQ_TINT0_TINT12
,
342 .top_irq
= IRQ_TINT0_TINT34
,
345 .base
= DAVINCI_TIMER1_BASE
,
346 .bottom_irq
= IRQ_TINT1_TINT12
,
347 .top_irq
= IRQ_TINT1_TINT34
,