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/platform_data/i2c-davinci.h>
15 #include <linux/platform_data/mmc-davinci.h>
16 #include <linux/platform_data/edma.h>
17 #include <linux/dma-mapping.h>
19 #include <linux/reboot.h>
21 #include <mach/hardware.h>
22 #include <mach/cputype.h>
24 #include <mach/time.h>
29 #define DAVINCI_I2C_BASE 0x01C21000
30 #define DAVINCI_ATA_BASE 0x01C66000
31 #define DAVINCI_MMCSD0_BASE 0x01E10000
32 #define DM355_MMCSD0_BASE 0x01E11000
33 #define DM355_MMCSD1_BASE 0x01E00000
34 #define DM365_MMCSD0_BASE 0x01D11000
35 #define DM365_MMCSD1_BASE 0x01D00000
37 void __iomem *davinci_sysmod_base;
39 void davinci_map_sysmod(void)
41 davinci_sysmod_base = ioremap_nocache(DAVINCI_SYSTEM_MODULE_BASE,
44 * Throw a bug since a lot of board initialization code depends
45 * on system module availability. ioremap() failing this early
46 * need careful looking into anyway.
48 BUG_ON(!davinci_sysmod_base);
51 static struct resource i2c_resources[] = {
53 .start = DAVINCI_I2C_BASE,
54 .end = DAVINCI_I2C_BASE + 0x40,
55 .flags = IORESOURCE_MEM,
58 .start = DAVINCI_INTC_IRQ(IRQ_I2C),
59 .flags = IORESOURCE_IRQ,
63 static struct platform_device davinci_i2c_device = {
64 .name = "i2c_davinci",
66 .num_resources = ARRAY_SIZE(i2c_resources),
67 .resource = i2c_resources,
70 void __init davinci_init_i2c(struct davinci_i2c_platform_data *pdata)
72 if (cpu_is_davinci_dm644x())
73 davinci_cfg_reg(DM644X_I2C);
75 davinci_i2c_device.dev.platform_data = pdata;
76 (void) platform_device_register(&davinci_i2c_device);
79 static struct resource ide_resources[] = {
81 .start = DAVINCI_ATA_BASE,
82 .end = DAVINCI_ATA_BASE + 0x7ff,
83 .flags = IORESOURCE_MEM,
86 .start = DAVINCI_INTC_IRQ(IRQ_IDE),
87 .end = DAVINCI_INTC_IRQ(IRQ_IDE),
88 .flags = IORESOURCE_IRQ,
92 static u64 ide_dma_mask = DMA_BIT_MASK(32);
94 static struct platform_device ide_device = {
95 .name = "palm_bk3710",
97 .resource = ide_resources,
98 .num_resources = ARRAY_SIZE(ide_resources),
100 .dma_mask = &ide_dma_mask,
101 .coherent_dma_mask = DMA_BIT_MASK(32),
105 void __init davinci_init_ide(void)
107 if (cpu_is_davinci_dm644x()) {
108 davinci_cfg_reg(DM644X_HPIEN_DISABLE);
109 davinci_cfg_reg(DM644X_ATAEN);
110 davinci_cfg_reg(DM644X_HDIREN);
111 } else if (cpu_is_davinci_dm646x()) {
112 /* IRQ_DM646X_IDE is the same as IRQ_IDE */
113 davinci_cfg_reg(DM646X_ATAEN);
119 platform_device_register(&ide_device);
122 #if IS_ENABLED(CONFIG_MMC_DAVINCI)
124 static u64 mmcsd0_dma_mask = DMA_BIT_MASK(32);
126 static struct resource mmcsd0_resources[] = {
128 /* different on dm355 */
129 .start = DAVINCI_MMCSD0_BASE,
130 .end = DAVINCI_MMCSD0_BASE + SZ_4K - 1,
131 .flags = IORESOURCE_MEM,
133 /* IRQs: MMC/SD, then SDIO */
135 .start = DAVINCI_INTC_IRQ(IRQ_MMCINT),
136 .flags = IORESOURCE_IRQ,
138 /* different on dm355 */
139 .start = DAVINCI_INTC_IRQ(IRQ_SDIOINT),
140 .flags = IORESOURCE_IRQ,
144 static struct platform_device davinci_mmcsd0_device = {
145 .name = "dm6441-mmc",
148 .dma_mask = &mmcsd0_dma_mask,
149 .coherent_dma_mask = DMA_BIT_MASK(32),
151 .num_resources = ARRAY_SIZE(mmcsd0_resources),
152 .resource = mmcsd0_resources,
155 static u64 mmcsd1_dma_mask = DMA_BIT_MASK(32);
157 static struct resource mmcsd1_resources[] = {
159 .start = DM355_MMCSD1_BASE,
160 .end = DM355_MMCSD1_BASE + SZ_4K - 1,
161 .flags = IORESOURCE_MEM,
163 /* IRQs: MMC/SD, then SDIO */
165 .start = DAVINCI_INTC_IRQ(IRQ_DM355_MMCINT1),
166 .flags = IORESOURCE_IRQ,
168 .start = DAVINCI_INTC_IRQ(IRQ_DM355_SDIOINT1),
169 .flags = IORESOURCE_IRQ,
173 static struct platform_device davinci_mmcsd1_device = {
174 .name = "dm6441-mmc",
177 .dma_mask = &mmcsd1_dma_mask,
178 .coherent_dma_mask = DMA_BIT_MASK(32),
180 .num_resources = ARRAY_SIZE(mmcsd1_resources),
181 .resource = mmcsd1_resources,
185 void __init davinci_setup_mmc(int module, struct davinci_mmc_config *config)
187 struct platform_device *pdev = NULL;
189 if (WARN_ON(cpu_is_davinci_dm646x()))
192 /* REVISIT: update PINMUX, ARM_IRQMUX, and EDMA_EVTMUX here too;
193 * for example if MMCSD1 is used for SDIO, maybe DAT2 is unused.
195 * FIXME dm6441 (no MMC/SD), dm357 (one), and dm335 (two) are
196 * not handled right here ...
200 if (cpu_is_davinci_dm355()) {
201 /* REVISIT we may not need all these pins if e.g. this
202 * is a hard-wired SDIO device...
204 davinci_cfg_reg(DM355_SD1_CMD);
205 davinci_cfg_reg(DM355_SD1_CLK);
206 davinci_cfg_reg(DM355_SD1_DATA0);
207 davinci_cfg_reg(DM355_SD1_DATA1);
208 davinci_cfg_reg(DM355_SD1_DATA2);
209 davinci_cfg_reg(DM355_SD1_DATA3);
210 } else if (cpu_is_davinci_dm365()) {
211 /* Configure pull down control */
214 v = __raw_readl(DAVINCI_SYSMOD_VIRT(SYSMOD_PUPDCTL1));
215 __raw_writel(v & ~0xfc0,
216 DAVINCI_SYSMOD_VIRT(SYSMOD_PUPDCTL1));
218 mmcsd1_resources[0].start = DM365_MMCSD1_BASE;
219 mmcsd1_resources[0].end = DM365_MMCSD1_BASE +
221 mmcsd1_resources[2].start = DAVINCI_INTC_IRQ(
223 davinci_mmcsd1_device.name = "da830-mmc";
227 pdev = &davinci_mmcsd1_device;
230 if (cpu_is_davinci_dm355()) {
231 mmcsd0_resources[0].start = DM355_MMCSD0_BASE;
232 mmcsd0_resources[0].end = DM355_MMCSD0_BASE + SZ_4K - 1;
233 mmcsd0_resources[2].start = DAVINCI_INTC_IRQ(
236 /* expose all 6 MMC0 signals: CLK, CMD, DATA[0..3] */
237 davinci_cfg_reg(DM355_MMCSD0);
240 davinci_cfg_reg(DM355_EVT26_MMC0_RX);
241 } else if (cpu_is_davinci_dm365()) {
242 mmcsd0_resources[0].start = DM365_MMCSD0_BASE;
243 mmcsd0_resources[0].end = DM365_MMCSD0_BASE +
245 mmcsd0_resources[2].start = DAVINCI_INTC_IRQ(
247 davinci_mmcsd0_device.name = "da830-mmc";
248 } else if (cpu_is_davinci_dm644x()) {
249 /* REVISIT: should this be in board-init code? */
250 /* Power-on 3.3V IO cells */
252 DAVINCI_SYSMOD_VIRT(SYSMOD_VDD3P3VPWDN));
253 /*Set up the pull regiter for MMC */
254 davinci_cfg_reg(DM644X_MSTK);
257 pdev = &davinci_mmcsd0_device;
264 pdev->dev.platform_data = config;
265 platform_device_register(pdev);
270 void __init davinci_setup_mmc(int module, struct davinci_mmc_config *config)
276 /*-------------------------------------------------------------------------*/
278 static struct resource wdt_resources[] = {
280 .start = DAVINCI_WDOG_BASE,
281 .end = DAVINCI_WDOG_BASE + SZ_1K - 1,
282 .flags = IORESOURCE_MEM,
286 static struct platform_device davinci_wdt_device = {
287 .name = "davinci-wdt",
289 .num_resources = ARRAY_SIZE(wdt_resources),
290 .resource = wdt_resources,
293 int davinci_init_wdt(void)
295 return platform_device_register(&davinci_wdt_device);
298 static struct platform_device davinci_gpio_device = {
299 .name = "davinci_gpio",
303 int davinci_gpio_register(struct resource *res, int size, void *pdata)
305 davinci_gpio_device.resource = res;
306 davinci_gpio_device.num_resources = size;
307 davinci_gpio_device.dev.platform_data = pdata;
308 return platform_device_register(&davinci_gpio_device);
311 /*-------------------------------------------------------------------------*/
313 /*-------------------------------------------------------------------------*/
315 struct davinci_timer_instance davinci_timer_instance[2] = {
317 .base = DAVINCI_TIMER0_BASE,
318 .bottom_irq = DAVINCI_INTC_IRQ(IRQ_TINT0_TINT12),
319 .top_irq = DAVINCI_INTC_IRQ(IRQ_TINT0_TINT34),
322 .base = DAVINCI_TIMER1_BASE,
323 .bottom_irq = DAVINCI_INTC_IRQ(IRQ_TINT1_TINT12),
324 .top_irq = DAVINCI_INTC_IRQ(IRQ_TINT1_TINT34),