1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3  * DA8XX/OMAP L1XX platform device data
4  *
5  * Copyright (c) 2007-2009, MontaVista Software, Inc. <source@mvista.com>
6  * Derived from code that was:
7  *	Copyright (C) 2006 Komal Shah <komal_shah802003@yahoo.com>
8  */
9 #include <linux/ahci_platform.h>
10 #include <linux/clk-provider.h>
11 #include <linux/clk.h>
12 #include <linux/clkdev.h>
13 #include <linux/dma-contiguous.h>
14 #include <linux/dmaengine.h>
15 #include <linux/init.h>
16 #include <linux/io.h>
17 #include <linux/platform_device.h>
18 #include <linux/reboot.h>
19 #include <linux/serial_8250.h>
20 
21 #include <mach/common.h>
22 #include <mach/cputype.h>
23 #include <mach/da8xx.h>
24 #include <mach/time.h>
25 
26 #include "asp.h"
27 #include "cpuidle.h"
28 #include "irqs.h"
29 #include "sram.h"
30 
31 #define DA8XX_TPCC_BASE			0x01c00000
32 #define DA8XX_TPTC0_BASE		0x01c08000
33 #define DA8XX_TPTC1_BASE		0x01c08400
34 #define DA8XX_WDOG_BASE			0x01c21000 /* DA8XX_TIMER64P1_BASE */
35 #define DA8XX_I2C0_BASE			0x01c22000
36 #define DA8XX_RTC_BASE			0x01c23000
37 #define DA8XX_PRUSS_MEM_BASE		0x01c30000
38 #define DA8XX_MMCSD0_BASE		0x01c40000
39 #define DA8XX_SPI0_BASE			0x01c41000
40 #define DA830_SPI1_BASE			0x01e12000
41 #define DA8XX_LCD_CNTRL_BASE		0x01e13000
42 #define DA850_SATA_BASE			0x01e18000
43 #define DA850_MMCSD1_BASE		0x01e1b000
44 #define DA8XX_EMAC_CPPI_PORT_BASE	0x01e20000
45 #define DA8XX_EMAC_CPGMACSS_BASE	0x01e22000
46 #define DA8XX_EMAC_CPGMAC_BASE		0x01e23000
47 #define DA8XX_EMAC_MDIO_BASE		0x01e24000
48 #define DA8XX_I2C1_BASE			0x01e28000
49 #define DA850_TPCC1_BASE		0x01e30000
50 #define DA850_TPTC2_BASE		0x01e38000
51 #define DA850_SPI1_BASE			0x01f0e000
52 #define DA8XX_DDR2_CTL_BASE		0xb0000000
53 
54 #define DA8XX_EMAC_CTRL_REG_OFFSET	0x3000
55 #define DA8XX_EMAC_MOD_REG_OFFSET	0x2000
56 #define DA8XX_EMAC_RAM_OFFSET		0x0000
57 #define DA8XX_EMAC_CTRL_RAM_SIZE	SZ_8K
58 
59 void __iomem *da8xx_syscfg0_base;
60 void __iomem *da8xx_syscfg1_base;
61 
62 static struct plat_serial8250_port da8xx_serial0_pdata[] = {
63 	{
64 		.mapbase	= DA8XX_UART0_BASE,
65 		.irq		= DAVINCI_INTC_IRQ(IRQ_DA8XX_UARTINT0),
66 		.flags		= UPF_BOOT_AUTOCONF | UPF_SKIP_TEST |
67 					UPF_IOREMAP,
68 		.iotype		= UPIO_MEM,
69 		.regshift	= 2,
70 	},
71 	{
72 		.flags	= 0,
73 	}
74 };
75 static struct plat_serial8250_port da8xx_serial1_pdata[] = {
76 	{
77 		.mapbase	= DA8XX_UART1_BASE,
78 		.irq		= DAVINCI_INTC_IRQ(IRQ_DA8XX_UARTINT1),
79 		.flags		= UPF_BOOT_AUTOCONF | UPF_SKIP_TEST |
80 					UPF_IOREMAP,
81 		.iotype		= UPIO_MEM,
82 		.regshift	= 2,
83 	},
84 	{
85 		.flags	= 0,
86 	}
87 };
88 static struct plat_serial8250_port da8xx_serial2_pdata[] = {
89 	{
90 		.mapbase	= DA8XX_UART2_BASE,
91 		.irq		= DAVINCI_INTC_IRQ(IRQ_DA8XX_UARTINT2),
92 		.flags		= UPF_BOOT_AUTOCONF | UPF_SKIP_TEST |
93 					UPF_IOREMAP,
94 		.iotype		= UPIO_MEM,
95 		.regshift	= 2,
96 	},
97 	{
98 		.flags	= 0,
99 	}
100 };
101 
102 struct platform_device da8xx_serial_device[] = {
103 	{
104 		.name	= "serial8250",
105 		.id	= PLAT8250_DEV_PLATFORM,
106 		.dev	= {
107 			.platform_data	= da8xx_serial0_pdata,
108 		}
109 	},
110 	{
111 		.name	= "serial8250",
112 		.id	= PLAT8250_DEV_PLATFORM1,
113 		.dev	= {
114 			.platform_data	= da8xx_serial1_pdata,
115 		}
116 	},
117 	{
118 		.name	= "serial8250",
119 		.id	= PLAT8250_DEV_PLATFORM2,
120 		.dev	= {
121 			.platform_data	= da8xx_serial2_pdata,
122 		}
123 	},
124 	{
125 	}
126 };
127 
128 static s8 da8xx_queue_priority_mapping[][2] = {
129 	/* {event queue no, Priority} */
130 	{0, 3},
131 	{1, 7},
132 	{-1, -1}
133 };
134 
135 static s8 da850_queue_priority_mapping[][2] = {
136 	/* {event queue no, Priority} */
137 	{0, 3},
138 	{-1, -1}
139 };
140 
141 static struct edma_soc_info da8xx_edma0_pdata = {
142 	.queue_priority_mapping	= da8xx_queue_priority_mapping,
143 	.default_queue		= EVENTQ_1,
144 };
145 
146 static struct edma_soc_info da850_edma1_pdata = {
147 	.queue_priority_mapping	= da850_queue_priority_mapping,
148 	.default_queue		= EVENTQ_0,
149 };
150 
151 static struct resource da8xx_edma0_resources[] = {
152 	{
153 		.name	= "edma3_cc",
154 		.start	= DA8XX_TPCC_BASE,
155 		.end	= DA8XX_TPCC_BASE + SZ_32K - 1,
156 		.flags	= IORESOURCE_MEM,
157 	},
158 	{
159 		.name	= "edma3_tc0",
160 		.start	= DA8XX_TPTC0_BASE,
161 		.end	= DA8XX_TPTC0_BASE + SZ_1K - 1,
162 		.flags	= IORESOURCE_MEM,
163 	},
164 	{
165 		.name	= "edma3_tc1",
166 		.start	= DA8XX_TPTC1_BASE,
167 		.end	= DA8XX_TPTC1_BASE + SZ_1K - 1,
168 		.flags	= IORESOURCE_MEM,
169 	},
170 	{
171 		.name	= "edma3_ccint",
172 		.start	= DAVINCI_INTC_IRQ(IRQ_DA8XX_CCINT0),
173 		.flags	= IORESOURCE_IRQ,
174 	},
175 	{
176 		.name	= "edma3_ccerrint",
177 		.start	= DAVINCI_INTC_IRQ(IRQ_DA8XX_CCERRINT),
178 		.flags	= IORESOURCE_IRQ,
179 	},
180 };
181 
182 static struct resource da850_edma1_resources[] = {
183 	{
184 		.name	= "edma3_cc",
185 		.start	= DA850_TPCC1_BASE,
186 		.end	= DA850_TPCC1_BASE + SZ_32K - 1,
187 		.flags	= IORESOURCE_MEM,
188 	},
189 	{
190 		.name	= "edma3_tc0",
191 		.start	= DA850_TPTC2_BASE,
192 		.end	= DA850_TPTC2_BASE + SZ_1K - 1,
193 		.flags	= IORESOURCE_MEM,
194 	},
195 	{
196 		.name	= "edma3_ccint",
197 		.start	= DAVINCI_INTC_IRQ(IRQ_DA850_CCINT1),
198 		.flags	= IORESOURCE_IRQ,
199 	},
200 	{
201 		.name	= "edma3_ccerrint",
202 		.start	= DAVINCI_INTC_IRQ(IRQ_DA850_CCERRINT1),
203 		.flags	= IORESOURCE_IRQ,
204 	},
205 };
206 
207 static const struct platform_device_info da8xx_edma0_device __initconst = {
208 	.name		= "edma",
209 	.id		= 0,
210 	.dma_mask	= DMA_BIT_MASK(32),
211 	.res		= da8xx_edma0_resources,
212 	.num_res	= ARRAY_SIZE(da8xx_edma0_resources),
213 	.data		= &da8xx_edma0_pdata,
214 	.size_data	= sizeof(da8xx_edma0_pdata),
215 };
216 
217 static const struct platform_device_info da850_edma1_device __initconst = {
218 	.name		= "edma",
219 	.id		= 1,
220 	.dma_mask	= DMA_BIT_MASK(32),
221 	.res		= da850_edma1_resources,
222 	.num_res	= ARRAY_SIZE(da850_edma1_resources),
223 	.data		= &da850_edma1_pdata,
224 	.size_data	= sizeof(da850_edma1_pdata),
225 };
226 
227 static const struct dma_slave_map da830_edma_map[] = {
228 	{ "davinci-mcasp.0", "rx", EDMA_FILTER_PARAM(0, 0) },
229 	{ "davinci-mcasp.0", "tx", EDMA_FILTER_PARAM(0, 1) },
230 	{ "davinci-mcasp.1", "rx", EDMA_FILTER_PARAM(0, 2) },
231 	{ "davinci-mcasp.1", "tx", EDMA_FILTER_PARAM(0, 3) },
232 	{ "davinci-mcasp.2", "rx", EDMA_FILTER_PARAM(0, 4) },
233 	{ "davinci-mcasp.2", "tx", EDMA_FILTER_PARAM(0, 5) },
234 	{ "spi_davinci.0", "rx", EDMA_FILTER_PARAM(0, 14) },
235 	{ "spi_davinci.0", "tx", EDMA_FILTER_PARAM(0, 15) },
236 	{ "da830-mmc.0", "rx", EDMA_FILTER_PARAM(0, 16) },
237 	{ "da830-mmc.0", "tx", EDMA_FILTER_PARAM(0, 17) },
238 	{ "spi_davinci.1", "rx", EDMA_FILTER_PARAM(0, 18) },
239 	{ "spi_davinci.1", "tx", EDMA_FILTER_PARAM(0, 19) },
240 };
241 
242 int __init da830_register_edma(struct edma_rsv_info *rsv)
243 {
244 	struct platform_device *edma_pdev;
245 
246 	da8xx_edma0_pdata.rsv = rsv;
247 
248 	da8xx_edma0_pdata.slave_map = da830_edma_map;
249 	da8xx_edma0_pdata.slavecnt = ARRAY_SIZE(da830_edma_map);
250 
251 	edma_pdev = platform_device_register_full(&da8xx_edma0_device);
252 	return PTR_ERR_OR_ZERO(edma_pdev);
253 }
254 
255 static const struct dma_slave_map da850_edma0_map[] = {
256 	{ "davinci-mcasp.0", "rx", EDMA_FILTER_PARAM(0, 0) },
257 	{ "davinci-mcasp.0", "tx", EDMA_FILTER_PARAM(0, 1) },
258 	{ "davinci-mcbsp.0", "rx", EDMA_FILTER_PARAM(0, 2) },
259 	{ "davinci-mcbsp.0", "tx", EDMA_FILTER_PARAM(0, 3) },
260 	{ "davinci-mcbsp.1", "rx", EDMA_FILTER_PARAM(0, 4) },
261 	{ "davinci-mcbsp.1", "tx", EDMA_FILTER_PARAM(0, 5) },
262 	{ "spi_davinci.0", "rx", EDMA_FILTER_PARAM(0, 14) },
263 	{ "spi_davinci.0", "tx", EDMA_FILTER_PARAM(0, 15) },
264 	{ "da830-mmc.0", "rx", EDMA_FILTER_PARAM(0, 16) },
265 	{ "da830-mmc.0", "tx", EDMA_FILTER_PARAM(0, 17) },
266 	{ "spi_davinci.1", "rx", EDMA_FILTER_PARAM(0, 18) },
267 	{ "spi_davinci.1", "tx", EDMA_FILTER_PARAM(0, 19) },
268 };
269 
270 static const struct dma_slave_map da850_edma1_map[] = {
271 	{ "da830-mmc.1", "rx", EDMA_FILTER_PARAM(1, 28) },
272 	{ "da830-mmc.1", "tx", EDMA_FILTER_PARAM(1, 29) },
273 };
274 
275 int __init da850_register_edma(struct edma_rsv_info *rsv[2])
276 {
277 	struct platform_device *edma_pdev;
278 
279 	if (rsv) {
280 		da8xx_edma0_pdata.rsv = rsv[0];
281 		da850_edma1_pdata.rsv = rsv[1];
282 	}
283 
284 	da8xx_edma0_pdata.slave_map = da850_edma0_map;
285 	da8xx_edma0_pdata.slavecnt = ARRAY_SIZE(da850_edma0_map);
286 
287 	edma_pdev = platform_device_register_full(&da8xx_edma0_device);
288 	if (IS_ERR(edma_pdev)) {
289 		pr_warn("%s: Failed to register eDMA0\n", __func__);
290 		return PTR_ERR(edma_pdev);
291 	}
292 
293 	da850_edma1_pdata.slave_map = da850_edma1_map;
294 	da850_edma1_pdata.slavecnt = ARRAY_SIZE(da850_edma1_map);
295 
296 	edma_pdev = platform_device_register_full(&da850_edma1_device);
297 	return PTR_ERR_OR_ZERO(edma_pdev);
298 }
299 
300 static struct resource da8xx_i2c_resources0[] = {
301 	{
302 		.start	= DA8XX_I2C0_BASE,
303 		.end	= DA8XX_I2C0_BASE + SZ_4K - 1,
304 		.flags	= IORESOURCE_MEM,
305 	},
306 	{
307 		.start	= DAVINCI_INTC_IRQ(IRQ_DA8XX_I2CINT0),
308 		.end	= DAVINCI_INTC_IRQ(IRQ_DA8XX_I2CINT0),
309 		.flags	= IORESOURCE_IRQ,
310 	},
311 };
312 
313 static struct platform_device da8xx_i2c_device0 = {
314 	.name		= "i2c_davinci",
315 	.id		= 1,
316 	.num_resources	= ARRAY_SIZE(da8xx_i2c_resources0),
317 	.resource	= da8xx_i2c_resources0,
318 };
319 
320 static struct resource da8xx_i2c_resources1[] = {
321 	{
322 		.start	= DA8XX_I2C1_BASE,
323 		.end	= DA8XX_I2C1_BASE + SZ_4K - 1,
324 		.flags	= IORESOURCE_MEM,
325 	},
326 	{
327 		.start	= DAVINCI_INTC_IRQ(IRQ_DA8XX_I2CINT1),
328 		.end	= DAVINCI_INTC_IRQ(IRQ_DA8XX_I2CINT1),
329 		.flags	= IORESOURCE_IRQ,
330 	},
331 };
332 
333 static struct platform_device da8xx_i2c_device1 = {
334 	.name		= "i2c_davinci",
335 	.id		= 2,
336 	.num_resources	= ARRAY_SIZE(da8xx_i2c_resources1),
337 	.resource	= da8xx_i2c_resources1,
338 };
339 
340 int __init da8xx_register_i2c(int instance,
341 		struct davinci_i2c_platform_data *pdata)
342 {
343 	struct platform_device *pdev;
344 
345 	if (instance == 0)
346 		pdev = &da8xx_i2c_device0;
347 	else if (instance == 1)
348 		pdev = &da8xx_i2c_device1;
349 	else
350 		return -EINVAL;
351 
352 	pdev->dev.platform_data = pdata;
353 	return platform_device_register(pdev);
354 }
355 
356 static struct resource da8xx_watchdog_resources[] = {
357 	{
358 		.start	= DA8XX_WDOG_BASE,
359 		.end	= DA8XX_WDOG_BASE + SZ_4K - 1,
360 		.flags	= IORESOURCE_MEM,
361 	},
362 };
363 
364 static struct platform_device da8xx_wdt_device = {
365 	.name		= "davinci-wdt",
366 	.id		= -1,
367 	.num_resources	= ARRAY_SIZE(da8xx_watchdog_resources),
368 	.resource	= da8xx_watchdog_resources,
369 };
370 
371 int __init da8xx_register_watchdog(void)
372 {
373 	return platform_device_register(&da8xx_wdt_device);
374 }
375 
376 static struct resource da8xx_emac_resources[] = {
377 	{
378 		.start	= DA8XX_EMAC_CPPI_PORT_BASE,
379 		.end	= DA8XX_EMAC_CPPI_PORT_BASE + SZ_16K - 1,
380 		.flags	= IORESOURCE_MEM,
381 	},
382 	{
383 		.start	= DAVINCI_INTC_IRQ(IRQ_DA8XX_C0_RX_THRESH_PULSE),
384 		.end	= DAVINCI_INTC_IRQ(IRQ_DA8XX_C0_RX_THRESH_PULSE),
385 		.flags	= IORESOURCE_IRQ,
386 	},
387 	{
388 		.start	= DAVINCI_INTC_IRQ(IRQ_DA8XX_C0_RX_PULSE),
389 		.end	= DAVINCI_INTC_IRQ(IRQ_DA8XX_C0_RX_PULSE),
390 		.flags	= IORESOURCE_IRQ,
391 	},
392 	{
393 		.start	= DAVINCI_INTC_IRQ(IRQ_DA8XX_C0_TX_PULSE),
394 		.end	= DAVINCI_INTC_IRQ(IRQ_DA8XX_C0_TX_PULSE),
395 		.flags	= IORESOURCE_IRQ,
396 	},
397 	{
398 		.start	= DAVINCI_INTC_IRQ(IRQ_DA8XX_C0_MISC_PULSE),
399 		.end	= DAVINCI_INTC_IRQ(IRQ_DA8XX_C0_MISC_PULSE),
400 		.flags	= IORESOURCE_IRQ,
401 	},
402 };
403 
404 struct emac_platform_data da8xx_emac_pdata = {
405 	.ctrl_reg_offset	= DA8XX_EMAC_CTRL_REG_OFFSET,
406 	.ctrl_mod_reg_offset	= DA8XX_EMAC_MOD_REG_OFFSET,
407 	.ctrl_ram_offset	= DA8XX_EMAC_RAM_OFFSET,
408 	.ctrl_ram_size		= DA8XX_EMAC_CTRL_RAM_SIZE,
409 	.version		= EMAC_VERSION_2,
410 };
411 
412 static struct platform_device da8xx_emac_device = {
413 	.name		= "davinci_emac",
414 	.id		= 1,
415 	.dev = {
416 		.platform_data	= &da8xx_emac_pdata,
417 	},
418 	.num_resources	= ARRAY_SIZE(da8xx_emac_resources),
419 	.resource	= da8xx_emac_resources,
420 };
421 
422 static struct resource da8xx_mdio_resources[] = {
423 	{
424 		.start	= DA8XX_EMAC_MDIO_BASE,
425 		.end	= DA8XX_EMAC_MDIO_BASE + SZ_4K - 1,
426 		.flags	= IORESOURCE_MEM,
427 	},
428 };
429 
430 static struct platform_device da8xx_mdio_device = {
431 	.name		= "davinci_mdio",
432 	.id		= 0,
433 	.num_resources	= ARRAY_SIZE(da8xx_mdio_resources),
434 	.resource	= da8xx_mdio_resources,
435 };
436 
437 int __init da8xx_register_emac(void)
438 {
439 	int ret;
440 
441 	ret = platform_device_register(&da8xx_mdio_device);
442 	if (ret < 0)
443 		return ret;
444 
445 	return platform_device_register(&da8xx_emac_device);
446 }
447 
448 static struct resource da830_mcasp1_resources[] = {
449 	{
450 		.name	= "mpu",
451 		.start	= DAVINCI_DA830_MCASP1_REG_BASE,
452 		.end	= DAVINCI_DA830_MCASP1_REG_BASE + (SZ_1K * 12) - 1,
453 		.flags	= IORESOURCE_MEM,
454 	},
455 	/* TX event */
456 	{
457 		.name	= "tx",
458 		.start	= DAVINCI_DA830_DMA_MCASP1_AXEVT,
459 		.end	= DAVINCI_DA830_DMA_MCASP1_AXEVT,
460 		.flags	= IORESOURCE_DMA,
461 	},
462 	/* RX event */
463 	{
464 		.name	= "rx",
465 		.start	= DAVINCI_DA830_DMA_MCASP1_AREVT,
466 		.end	= DAVINCI_DA830_DMA_MCASP1_AREVT,
467 		.flags	= IORESOURCE_DMA,
468 	},
469 	{
470 		.name	= "common",
471 		.start	= DAVINCI_INTC_IRQ(IRQ_DA8XX_MCASPINT),
472 		.flags	= IORESOURCE_IRQ,
473 	},
474 };
475 
476 static struct platform_device da830_mcasp1_device = {
477 	.name		= "davinci-mcasp",
478 	.id		= 1,
479 	.num_resources	= ARRAY_SIZE(da830_mcasp1_resources),
480 	.resource	= da830_mcasp1_resources,
481 };
482 
483 static struct resource da830_mcasp2_resources[] = {
484 	{
485 		.name	= "mpu",
486 		.start	= DAVINCI_DA830_MCASP2_REG_BASE,
487 		.end	= DAVINCI_DA830_MCASP2_REG_BASE + (SZ_1K * 12) - 1,
488 		.flags	= IORESOURCE_MEM,
489 	},
490 	/* TX event */
491 	{
492 		.name	= "tx",
493 		.start	= DAVINCI_DA830_DMA_MCASP2_AXEVT,
494 		.end	= DAVINCI_DA830_DMA_MCASP2_AXEVT,
495 		.flags	= IORESOURCE_DMA,
496 	},
497 	/* RX event */
498 	{
499 		.name	= "rx",
500 		.start	= DAVINCI_DA830_DMA_MCASP2_AREVT,
501 		.end	= DAVINCI_DA830_DMA_MCASP2_AREVT,
502 		.flags	= IORESOURCE_DMA,
503 	},
504 	{
505 		.name	= "common",
506 		.start	= DAVINCI_INTC_IRQ(IRQ_DA8XX_MCASPINT),
507 		.flags	= IORESOURCE_IRQ,
508 	},
509 };
510 
511 static struct platform_device da830_mcasp2_device = {
512 	.name		= "davinci-mcasp",
513 	.id		= 2,
514 	.num_resources	= ARRAY_SIZE(da830_mcasp2_resources),
515 	.resource	= da830_mcasp2_resources,
516 };
517 
518 static struct resource da850_mcasp_resources[] = {
519 	{
520 		.name	= "mpu",
521 		.start	= DAVINCI_DA8XX_MCASP0_REG_BASE,
522 		.end	= DAVINCI_DA8XX_MCASP0_REG_BASE + (SZ_1K * 12) - 1,
523 		.flags	= IORESOURCE_MEM,
524 	},
525 	/* TX event */
526 	{
527 		.name	= "tx",
528 		.start	= DAVINCI_DA8XX_DMA_MCASP0_AXEVT,
529 		.end	= DAVINCI_DA8XX_DMA_MCASP0_AXEVT,
530 		.flags	= IORESOURCE_DMA,
531 	},
532 	/* RX event */
533 	{
534 		.name	= "rx",
535 		.start	= DAVINCI_DA8XX_DMA_MCASP0_AREVT,
536 		.end	= DAVINCI_DA8XX_DMA_MCASP0_AREVT,
537 		.flags	= IORESOURCE_DMA,
538 	},
539 	{
540 		.name	= "common",
541 		.start	= DAVINCI_INTC_IRQ(IRQ_DA8XX_MCASPINT),
542 		.flags	= IORESOURCE_IRQ,
543 	},
544 };
545 
546 static struct platform_device da850_mcasp_device = {
547 	.name		= "davinci-mcasp",
548 	.id		= 0,
549 	.num_resources	= ARRAY_SIZE(da850_mcasp_resources),
550 	.resource	= da850_mcasp_resources,
551 };
552 
553 void __init da8xx_register_mcasp(int id, struct snd_platform_data *pdata)
554 {
555 	struct platform_device *pdev;
556 
557 	switch (id) {
558 	case 0:
559 		/* Valid for DA830/OMAP-L137 or DA850/OMAP-L138 */
560 		pdev = &da850_mcasp_device;
561 		break;
562 	case 1:
563 		/* Valid for DA830/OMAP-L137 only */
564 		if (!cpu_is_davinci_da830())
565 			return;
566 		pdev = &da830_mcasp1_device;
567 		break;
568 	case 2:
569 		/* Valid for DA830/OMAP-L137 only */
570 		if (!cpu_is_davinci_da830())
571 			return;
572 		pdev = &da830_mcasp2_device;
573 		break;
574 	default:
575 		return;
576 	}
577 
578 	pdev->dev.platform_data = pdata;
579 	platform_device_register(pdev);
580 }
581 
582 static struct resource da8xx_pruss_resources[] = {
583 	{
584 		.start	= DA8XX_PRUSS_MEM_BASE,
585 		.end	= DA8XX_PRUSS_MEM_BASE + 0xFFFF,
586 		.flags	= IORESOURCE_MEM,
587 	},
588 	{
589 		.start	= DAVINCI_INTC_IRQ(IRQ_DA8XX_EVTOUT0),
590 		.end	= DAVINCI_INTC_IRQ(IRQ_DA8XX_EVTOUT0),
591 		.flags	= IORESOURCE_IRQ,
592 	},
593 	{
594 		.start	= DAVINCI_INTC_IRQ(IRQ_DA8XX_EVTOUT1),
595 		.end	= DAVINCI_INTC_IRQ(IRQ_DA8XX_EVTOUT1),
596 		.flags	= IORESOURCE_IRQ,
597 	},
598 	{
599 		.start	= DAVINCI_INTC_IRQ(IRQ_DA8XX_EVTOUT2),
600 		.end	= DAVINCI_INTC_IRQ(IRQ_DA8XX_EVTOUT2),
601 		.flags	= IORESOURCE_IRQ,
602 	},
603 	{
604 		.start	= DAVINCI_INTC_IRQ(IRQ_DA8XX_EVTOUT3),
605 		.end	= DAVINCI_INTC_IRQ(IRQ_DA8XX_EVTOUT3),
606 		.flags	= IORESOURCE_IRQ,
607 	},
608 	{
609 		.start	= DAVINCI_INTC_IRQ(IRQ_DA8XX_EVTOUT4),
610 		.end	= DAVINCI_INTC_IRQ(IRQ_DA8XX_EVTOUT4),
611 		.flags	= IORESOURCE_IRQ,
612 	},
613 	{
614 		.start	= DAVINCI_INTC_IRQ(IRQ_DA8XX_EVTOUT5),
615 		.end	= DAVINCI_INTC_IRQ(IRQ_DA8XX_EVTOUT5),
616 		.flags	= IORESOURCE_IRQ,
617 	},
618 	{
619 		.start	= DAVINCI_INTC_IRQ(IRQ_DA8XX_EVTOUT6),
620 		.end	= DAVINCI_INTC_IRQ(IRQ_DA8XX_EVTOUT6),
621 		.flags	= IORESOURCE_IRQ,
622 	},
623 	{
624 		.start	= DAVINCI_INTC_IRQ(IRQ_DA8XX_EVTOUT7),
625 		.end	= DAVINCI_INTC_IRQ(IRQ_DA8XX_EVTOUT7),
626 		.flags	= IORESOURCE_IRQ,
627 	},
628 };
629 
630 static struct uio_pruss_pdata da8xx_uio_pruss_pdata = {
631 	.pintc_base	= 0x4000,
632 };
633 
634 static struct platform_device da8xx_uio_pruss_dev = {
635 	.name		= "pruss_uio",
636 	.id		= -1,
637 	.num_resources	= ARRAY_SIZE(da8xx_pruss_resources),
638 	.resource	= da8xx_pruss_resources,
639 	.dev		= {
640 		.coherent_dma_mask	= DMA_BIT_MASK(32),
641 		.platform_data		= &da8xx_uio_pruss_pdata,
642 	}
643 };
644 
645 int __init da8xx_register_uio_pruss(void)
646 {
647 	da8xx_uio_pruss_pdata.sram_pool = sram_get_gen_pool();
648 	return platform_device_register(&da8xx_uio_pruss_dev);
649 }
650 
651 static struct lcd_ctrl_config lcd_cfg = {
652 	.panel_shade		= COLOR_ACTIVE,
653 	.bpp			= 16,
654 };
655 
656 struct da8xx_lcdc_platform_data sharp_lcd035q3dg01_pdata = {
657 	.manu_name		= "sharp",
658 	.controller_data	= &lcd_cfg,
659 	.type			= "Sharp_LCD035Q3DG01",
660 };
661 
662 struct da8xx_lcdc_platform_data sharp_lk043t1dg01_pdata = {
663 	.manu_name		= "sharp",
664 	.controller_data	= &lcd_cfg,
665 	.type			= "Sharp_LK043T1DG01",
666 };
667 
668 static struct resource da8xx_lcdc_resources[] = {
669 	[0] = { /* registers */
670 		.start  = DA8XX_LCD_CNTRL_BASE,
671 		.end    = DA8XX_LCD_CNTRL_BASE + SZ_4K - 1,
672 		.flags  = IORESOURCE_MEM,
673 	},
674 	[1] = { /* interrupt */
675 		.start  = DAVINCI_INTC_IRQ(IRQ_DA8XX_LCDINT),
676 		.end    = DAVINCI_INTC_IRQ(IRQ_DA8XX_LCDINT),
677 		.flags  = IORESOURCE_IRQ,
678 	},
679 };
680 
681 static struct platform_device da8xx_lcdc_device = {
682 	.name		= "da8xx_lcdc",
683 	.id		= 0,
684 	.num_resources	= ARRAY_SIZE(da8xx_lcdc_resources),
685 	.resource	= da8xx_lcdc_resources,
686 	.dev		= {
687 		.coherent_dma_mask	= DMA_BIT_MASK(32),
688 	}
689 };
690 
691 int __init da8xx_register_lcdc(struct da8xx_lcdc_platform_data *pdata)
692 {
693 	da8xx_lcdc_device.dev.platform_data = pdata;
694 	return platform_device_register(&da8xx_lcdc_device);
695 }
696 
697 static struct resource da8xx_gpio_resources[] = {
698 	{ /* registers */
699 		.start	= DA8XX_GPIO_BASE,
700 		.end	= DA8XX_GPIO_BASE + SZ_4K - 1,
701 		.flags	= IORESOURCE_MEM,
702 	},
703 	{ /* interrupt */
704 		.start	= DAVINCI_INTC_IRQ(IRQ_DA8XX_GPIO0),
705 		.end	= DAVINCI_INTC_IRQ(IRQ_DA8XX_GPIO0),
706 		.flags	= IORESOURCE_IRQ,
707 	},
708 	{
709 		.start	= DAVINCI_INTC_IRQ(IRQ_DA8XX_GPIO1),
710 		.end	= DAVINCI_INTC_IRQ(IRQ_DA8XX_GPIO1),
711 		.flags	= IORESOURCE_IRQ,
712 	},
713 	{
714 		.start	= DAVINCI_INTC_IRQ(IRQ_DA8XX_GPIO2),
715 		.end	= DAVINCI_INTC_IRQ(IRQ_DA8XX_GPIO2),
716 		.flags	= IORESOURCE_IRQ,
717 	},
718 	{
719 		.start	= DAVINCI_INTC_IRQ(IRQ_DA8XX_GPIO3),
720 		.end	= DAVINCI_INTC_IRQ(IRQ_DA8XX_GPIO3),
721 		.flags	= IORESOURCE_IRQ,
722 	},
723 	{
724 		.start	= DAVINCI_INTC_IRQ(IRQ_DA8XX_GPIO4),
725 		.end	= DAVINCI_INTC_IRQ(IRQ_DA8XX_GPIO4),
726 		.flags	= IORESOURCE_IRQ,
727 	},
728 	{
729 		.start	= DAVINCI_INTC_IRQ(IRQ_DA8XX_GPIO5),
730 		.end	= DAVINCI_INTC_IRQ(IRQ_DA8XX_GPIO5),
731 		.flags	= IORESOURCE_IRQ,
732 	},
733 	{
734 		.start	= DAVINCI_INTC_IRQ(IRQ_DA8XX_GPIO6),
735 		.end	= DAVINCI_INTC_IRQ(IRQ_DA8XX_GPIO6),
736 		.flags	= IORESOURCE_IRQ,
737 	},
738 	{
739 		.start	= DAVINCI_INTC_IRQ(IRQ_DA8XX_GPIO7),
740 		.end	= DAVINCI_INTC_IRQ(IRQ_DA8XX_GPIO7),
741 		.flags	= IORESOURCE_IRQ,
742 	},
743 	{
744 		.start	= DAVINCI_INTC_IRQ(IRQ_DA8XX_GPIO8),
745 		.end	= DAVINCI_INTC_IRQ(IRQ_DA8XX_GPIO8),
746 		.flags	= IORESOURCE_IRQ,
747 	},
748 };
749 
750 static struct platform_device da8xx_gpio_device = {
751 	.name		= "davinci_gpio",
752 	.id		= -1,
753 	.num_resources	= ARRAY_SIZE(da8xx_gpio_resources),
754 	.resource	= da8xx_gpio_resources,
755 };
756 
757 int __init da8xx_register_gpio(void *pdata)
758 {
759 	da8xx_gpio_device.dev.platform_data = pdata;
760 	return platform_device_register(&da8xx_gpio_device);
761 }
762 
763 static struct resource da8xx_mmcsd0_resources[] = {
764 	{		/* registers */
765 		.start	= DA8XX_MMCSD0_BASE,
766 		.end	= DA8XX_MMCSD0_BASE + SZ_4K - 1,
767 		.flags	= IORESOURCE_MEM,
768 	},
769 	{		/* interrupt */
770 		.start	= DAVINCI_INTC_IRQ(IRQ_DA8XX_MMCSDINT0),
771 		.end	= DAVINCI_INTC_IRQ(IRQ_DA8XX_MMCSDINT0),
772 		.flags	= IORESOURCE_IRQ,
773 	},
774 };
775 
776 static struct platform_device da8xx_mmcsd0_device = {
777 	.name		= "da830-mmc",
778 	.id		= 0,
779 	.num_resources	= ARRAY_SIZE(da8xx_mmcsd0_resources),
780 	.resource	= da8xx_mmcsd0_resources,
781 };
782 
783 int __init da8xx_register_mmcsd0(struct davinci_mmc_config *config)
784 {
785 	da8xx_mmcsd0_device.dev.platform_data = config;
786 	return platform_device_register(&da8xx_mmcsd0_device);
787 }
788 
789 #ifdef CONFIG_ARCH_DAVINCI_DA850
790 static struct resource da850_mmcsd1_resources[] = {
791 	{		/* registers */
792 		.start	= DA850_MMCSD1_BASE,
793 		.end	= DA850_MMCSD1_BASE + SZ_4K - 1,
794 		.flags	= IORESOURCE_MEM,
795 	},
796 	{		/* interrupt */
797 		.start	= DAVINCI_INTC_IRQ(IRQ_DA850_MMCSDINT0_1),
798 		.end	= DAVINCI_INTC_IRQ(IRQ_DA850_MMCSDINT0_1),
799 		.flags	= IORESOURCE_IRQ,
800 	},
801 };
802 
803 static struct platform_device da850_mmcsd1_device = {
804 	.name		= "da830-mmc",
805 	.id		= 1,
806 	.num_resources	= ARRAY_SIZE(da850_mmcsd1_resources),
807 	.resource	= da850_mmcsd1_resources,
808 };
809 
810 int __init da850_register_mmcsd1(struct davinci_mmc_config *config)
811 {
812 	da850_mmcsd1_device.dev.platform_data = config;
813 	return platform_device_register(&da850_mmcsd1_device);
814 }
815 #endif
816 
817 static struct resource da8xx_rproc_resources[] = {
818 	{ /* DSP boot address */
819 		.name		= "host1cfg",
820 		.start		= DA8XX_SYSCFG0_BASE + DA8XX_HOST1CFG_REG,
821 		.end		= DA8XX_SYSCFG0_BASE + DA8XX_HOST1CFG_REG + 3,
822 		.flags		= IORESOURCE_MEM,
823 	},
824 	{ /* DSP interrupt registers */
825 		.name		= "chipsig",
826 		.start		= DA8XX_SYSCFG0_BASE + DA8XX_CHIPSIG_REG,
827 		.end		= DA8XX_SYSCFG0_BASE + DA8XX_CHIPSIG_REG + 7,
828 		.flags		= IORESOURCE_MEM,
829 	},
830 	{ /* DSP L2 RAM */
831 		.name		= "l2sram",
832 		.start		= DA8XX_DSP_L2_RAM_BASE,
833 		.end		= DA8XX_DSP_L2_RAM_BASE + SZ_256K - 1,
834 		.flags		= IORESOURCE_MEM,
835 	},
836 	{ /* DSP L1P RAM */
837 		.name		= "l1pram",
838 		.start		= DA8XX_DSP_L1P_RAM_BASE,
839 		.end		= DA8XX_DSP_L1P_RAM_BASE + SZ_32K - 1,
840 		.flags		= IORESOURCE_MEM,
841 	},
842 	{ /* DSP L1D RAM */
843 		.name		= "l1dram",
844 		.start		= DA8XX_DSP_L1D_RAM_BASE,
845 		.end		= DA8XX_DSP_L1D_RAM_BASE + SZ_32K - 1,
846 		.flags		= IORESOURCE_MEM,
847 	},
848 	{ /* dsp irq */
849 		.start		= DAVINCI_INTC_IRQ(IRQ_DA8XX_CHIPINT0),
850 		.end		= DAVINCI_INTC_IRQ(IRQ_DA8XX_CHIPINT0),
851 		.flags		= IORESOURCE_IRQ,
852 	},
853 };
854 
855 static struct platform_device da8xx_dsp = {
856 	.name	= "davinci-rproc",
857 	.dev	= {
858 		.coherent_dma_mask	= DMA_BIT_MASK(32),
859 	},
860 	.num_resources	= ARRAY_SIZE(da8xx_rproc_resources),
861 	.resource	= da8xx_rproc_resources,
862 };
863 
864 static bool rproc_mem_inited __initdata;
865 
866 #if IS_ENABLED(CONFIG_DA8XX_REMOTEPROC)
867 
868 static phys_addr_t rproc_base __initdata;
869 static unsigned long rproc_size __initdata;
870 
871 static int __init early_rproc_mem(char *p)
872 {
873 	char *endp;
874 
875 	if (p == NULL)
876 		return 0;
877 
878 	rproc_size = memparse(p, &endp);
879 	if (*endp == '@')
880 		rproc_base = memparse(endp + 1, NULL);
881 
882 	return 0;
883 }
884 early_param("rproc_mem", early_rproc_mem);
885 
886 void __init da8xx_rproc_reserve_cma(void)
887 {
888 	int ret;
889 
890 	if (!rproc_base || !rproc_size) {
891 		pr_err("%s: 'rproc_mem=nn@address' badly specified\n"
892 		       "    'nn' and 'address' must both be non-zero\n",
893 		       __func__);
894 
895 		return;
896 	}
897 
898 	pr_info("%s: reserving 0x%lx @ 0x%lx...\n",
899 		__func__, rproc_size, (unsigned long)rproc_base);
900 
901 	ret = dma_declare_contiguous(&da8xx_dsp.dev, rproc_size, rproc_base, 0);
902 	if (ret)
903 		pr_err("%s: dma_declare_contiguous failed %d\n", __func__, ret);
904 	else
905 		rproc_mem_inited = true;
906 }
907 
908 #else
909 
910 void __init da8xx_rproc_reserve_cma(void)
911 {
912 }
913 
914 #endif
915 
916 int __init da8xx_register_rproc(void)
917 {
918 	int ret;
919 
920 	if (!rproc_mem_inited) {
921 		pr_warn("%s: memory not reserved for DSP, not registering DSP device\n",
922 			__func__);
923 		return -ENOMEM;
924 	}
925 
926 	ret = platform_device_register(&da8xx_dsp);
927 	if (ret)
928 		pr_err("%s: can't register DSP device: %d\n", __func__, ret);
929 
930 	return ret;
931 };
932 
933 static struct resource da8xx_rtc_resources[] = {
934 	{
935 		.start		= DA8XX_RTC_BASE,
936 		.end		= DA8XX_RTC_BASE + SZ_4K - 1,
937 		.flags		= IORESOURCE_MEM,
938 	},
939 	{ /* timer irq */
940 		.start		= DAVINCI_INTC_IRQ(IRQ_DA8XX_RTC),
941 		.end		= DAVINCI_INTC_IRQ(IRQ_DA8XX_RTC),
942 		.flags		= IORESOURCE_IRQ,
943 	},
944 	{ /* alarm irq */
945 		.start		= DAVINCI_INTC_IRQ(IRQ_DA8XX_RTC),
946 		.end		= DAVINCI_INTC_IRQ(IRQ_DA8XX_RTC),
947 		.flags		= IORESOURCE_IRQ,
948 	},
949 };
950 
951 static struct platform_device da8xx_rtc_device = {
952 	.name           = "da830-rtc",
953 	.id             = -1,
954 	.num_resources	= ARRAY_SIZE(da8xx_rtc_resources),
955 	.resource	= da8xx_rtc_resources,
956 };
957 
958 int da8xx_register_rtc(void)
959 {
960 	return platform_device_register(&da8xx_rtc_device);
961 }
962 
963 static void __iomem *da8xx_ddr2_ctlr_base;
964 void __iomem * __init da8xx_get_mem_ctlr(void)
965 {
966 	if (da8xx_ddr2_ctlr_base)
967 		return da8xx_ddr2_ctlr_base;
968 
969 	da8xx_ddr2_ctlr_base = ioremap(DA8XX_DDR2_CTL_BASE, SZ_32K);
970 	if (!da8xx_ddr2_ctlr_base)
971 		pr_warn("%s: Unable to map DDR2 controller", __func__);
972 
973 	return da8xx_ddr2_ctlr_base;
974 }
975 
976 static struct resource da8xx_cpuidle_resources[] = {
977 	{
978 		.start		= DA8XX_DDR2_CTL_BASE,
979 		.end		= DA8XX_DDR2_CTL_BASE + SZ_32K - 1,
980 		.flags		= IORESOURCE_MEM,
981 	},
982 };
983 
984 /* DA8XX devices support DDR2 power down */
985 static struct davinci_cpuidle_config da8xx_cpuidle_pdata = {
986 	.ddr2_pdown	= 1,
987 };
988 
989 
990 static struct platform_device da8xx_cpuidle_device = {
991 	.name			= "cpuidle-davinci",
992 	.num_resources		= ARRAY_SIZE(da8xx_cpuidle_resources),
993 	.resource		= da8xx_cpuidle_resources,
994 	.dev = {
995 		.platform_data	= &da8xx_cpuidle_pdata,
996 	},
997 };
998 
999 int __init da8xx_register_cpuidle(void)
1000 {
1001 	da8xx_cpuidle_pdata.ddr2_ctlr_base = da8xx_get_mem_ctlr();
1002 
1003 	return platform_device_register(&da8xx_cpuidle_device);
1004 }
1005 
1006 static struct resource da8xx_spi0_resources[] = {
1007 	[0] = {
1008 		.start	= DA8XX_SPI0_BASE,
1009 		.end	= DA8XX_SPI0_BASE + SZ_4K - 1,
1010 		.flags	= IORESOURCE_MEM,
1011 	},
1012 	[1] = {
1013 		.start	= DAVINCI_INTC_IRQ(IRQ_DA8XX_SPINT0),
1014 		.end	= DAVINCI_INTC_IRQ(IRQ_DA8XX_SPINT0),
1015 		.flags	= IORESOURCE_IRQ,
1016 	},
1017 };
1018 
1019 static struct resource da8xx_spi1_resources[] = {
1020 	[0] = {
1021 		.start	= DA830_SPI1_BASE,
1022 		.end	= DA830_SPI1_BASE + SZ_4K - 1,
1023 		.flags	= IORESOURCE_MEM,
1024 	},
1025 	[1] = {
1026 		.start	= DAVINCI_INTC_IRQ(IRQ_DA8XX_SPINT1),
1027 		.end	= DAVINCI_INTC_IRQ(IRQ_DA8XX_SPINT1),
1028 		.flags	= IORESOURCE_IRQ,
1029 	},
1030 };
1031 
1032 static struct davinci_spi_platform_data da8xx_spi_pdata[] = {
1033 	[0] = {
1034 		.version	= SPI_VERSION_2,
1035 		.intr_line	= 1,
1036 		.dma_event_q	= EVENTQ_0,
1037 		.prescaler_limit = 2,
1038 	},
1039 	[1] = {
1040 		.version	= SPI_VERSION_2,
1041 		.intr_line	= 1,
1042 		.dma_event_q	= EVENTQ_0,
1043 		.prescaler_limit = 2,
1044 	},
1045 };
1046 
1047 static struct platform_device da8xx_spi_device[] = {
1048 	[0] = {
1049 		.name		= "spi_davinci",
1050 		.id		= 0,
1051 		.num_resources	= ARRAY_SIZE(da8xx_spi0_resources),
1052 		.resource	= da8xx_spi0_resources,
1053 		.dev		= {
1054 			.platform_data = &da8xx_spi_pdata[0],
1055 		},
1056 	},
1057 	[1] = {
1058 		.name		= "spi_davinci",
1059 		.id		= 1,
1060 		.num_resources	= ARRAY_SIZE(da8xx_spi1_resources),
1061 		.resource	= da8xx_spi1_resources,
1062 		.dev		= {
1063 			.platform_data = &da8xx_spi_pdata[1],
1064 		},
1065 	},
1066 };
1067 
1068 int __init da8xx_register_spi_bus(int instance, unsigned num_chipselect)
1069 {
1070 	if (instance < 0 || instance > 1)
1071 		return -EINVAL;
1072 
1073 	da8xx_spi_pdata[instance].num_chipselect = num_chipselect;
1074 
1075 	if (instance == 1 && cpu_is_davinci_da850()) {
1076 		da8xx_spi1_resources[0].start = DA850_SPI1_BASE;
1077 		da8xx_spi1_resources[0].end = DA850_SPI1_BASE + SZ_4K - 1;
1078 	}
1079 
1080 	return platform_device_register(&da8xx_spi_device[instance]);
1081 }
1082 
1083 #ifdef CONFIG_ARCH_DAVINCI_DA850
1084 int __init da850_register_sata_refclk(int rate)
1085 {
1086 	struct clk *clk;
1087 
1088 	clk = clk_register_fixed_rate(NULL, "sata_refclk", NULL, 0, rate);
1089 	if (IS_ERR(clk))
1090 		return PTR_ERR(clk);
1091 
1092 	return clk_register_clkdev(clk, "refclk", "ahci_da850");
1093 }
1094 
1095 static struct resource da850_sata_resources[] = {
1096 	{
1097 		.start	= DA850_SATA_BASE,
1098 		.end	= DA850_SATA_BASE + 0x1fff,
1099 		.flags	= IORESOURCE_MEM,
1100 	},
1101 	{
1102 		.start	= DA8XX_SYSCFG1_BASE + DA8XX_PWRDN_REG,
1103 		.end	= DA8XX_SYSCFG1_BASE + DA8XX_PWRDN_REG + 0x3,
1104 		.flags	= IORESOURCE_MEM,
1105 	},
1106 	{
1107 		.start	= DAVINCI_INTC_IRQ(IRQ_DA850_SATAINT),
1108 		.flags	= IORESOURCE_IRQ,
1109 	},
1110 };
1111 
1112 static u64 da850_sata_dmamask = DMA_BIT_MASK(32);
1113 
1114 static struct platform_device da850_sata_device = {
1115 	.name	= "ahci_da850",
1116 	.id	= -1,
1117 	.dev	= {
1118 		.dma_mask		= &da850_sata_dmamask,
1119 		.coherent_dma_mask	= DMA_BIT_MASK(32),
1120 	},
1121 	.num_resources	= ARRAY_SIZE(da850_sata_resources),
1122 	.resource	= da850_sata_resources,
1123 };
1124 
1125 int __init da850_register_sata(unsigned long refclkpn)
1126 {
1127 	int ret;
1128 
1129 	ret = da850_register_sata_refclk(refclkpn);
1130 	if (ret)
1131 		return ret;
1132 
1133 	return platform_device_register(&da850_sata_device);
1134 }
1135 #endif
1136 
1137 static struct regmap *da8xx_cfgchip;
1138 
1139 static const struct regmap_config da8xx_cfgchip_config __initconst = {
1140 	.name		= "cfgchip",
1141 	.reg_bits	= 32,
1142 	.val_bits	= 32,
1143 	.reg_stride	= 4,
1144 	.max_register	= DA8XX_CFGCHIP4_REG - DA8XX_CFGCHIP0_REG,
1145 };
1146 
1147 /**
1148  * da8xx_get_cfgchip - Lazy gets CFGCHIP as regmap
1149  *
1150  * This is for use on non-DT boards only. For DT boards, use
1151  * syscon_regmap_lookup_by_compatible("ti,da830-cfgchip")
1152  *
1153  * Returns: Pointer to the CFGCHIP regmap or negative error code.
1154  */
1155 struct regmap * __init da8xx_get_cfgchip(void)
1156 {
1157 	if (IS_ERR_OR_NULL(da8xx_cfgchip))
1158 		da8xx_cfgchip = regmap_init_mmio(NULL,
1159 					DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP0_REG),
1160 					&da8xx_cfgchip_config);
1161 
1162 	return da8xx_cfgchip;
1163 }
1164