xref: /openbmc/u-boot/drivers/net/fsl-mc/mc.c (revision 856b30da)
1 /*
2  * Copyright (C) 2014 Freescale Semiconductor
3  *
4  * SPDX-License-Identifier:	GPL-2.0+
5  */
6 #include <common.h>
7 #include <errno.h>
8 #include <asm/io.h>
9 #include <libfdt.h>
10 #include <fdt_support.h>
11 #include <fsl-mc/fsl_mc.h>
12 #include <fsl-mc/fsl_mc_sys.h>
13 #include <fsl-mc/fsl_mc_private.h>
14 #include <fsl-mc/fsl_dpmng.h>
15 #include <fsl-mc/fsl_dprc.h>
16 #include <fsl-mc/fsl_dpio.h>
17 #include <fsl-mc/fsl_qbman_portal.h>
18 
19 #define MC_RAM_BASE_ADDR_ALIGNMENT  (512UL * 1024 * 1024)
20 #define MC_RAM_BASE_ADDR_ALIGNMENT_MASK	(~(MC_RAM_BASE_ADDR_ALIGNMENT - 1))
21 #define MC_RAM_SIZE_ALIGNMENT	    (256UL * 1024 * 1024)
22 
23 #define MC_MEM_SIZE_ENV_VAR	"mcmemsize"
24 #define MC_BOOT_TIMEOUT_ENV_VAR	"mcboottimeout"
25 
26 DECLARE_GLOBAL_DATA_PTR;
27 static int mc_boot_status;
28 struct fsl_mc_io *dflt_mc_io = NULL;
29 uint16_t dflt_dprc_handle = 0;
30 struct fsl_dpbp_obj *dflt_dpbp = NULL;
31 struct fsl_dpio_obj *dflt_dpio = NULL;
32 uint16_t dflt_dpio_handle = 0;
33 
34 #ifdef DEBUG
35 void dump_ram_words(const char *title, void *addr)
36 {
37 	int i;
38 	uint32_t *words = addr;
39 
40 	printf("Dumping beginning of %s (%p):\n", title, addr);
41 	for (i = 0; i < 16; i++)
42 		printf("%#x ", words[i]);
43 
44 	printf("\n");
45 }
46 
47 void dump_mc_ccsr_regs(struct mc_ccsr_registers __iomem *mc_ccsr_regs)
48 {
49 	printf("MC CCSR registers:\n"
50 		"reg_gcr1 %#x\n"
51 		"reg_gsr %#x\n"
52 		"reg_sicbalr %#x\n"
53 		"reg_sicbahr %#x\n"
54 		"reg_sicapr %#x\n"
55 		"reg_mcfbalr %#x\n"
56 		"reg_mcfbahr %#x\n"
57 		"reg_mcfapr %#x\n"
58 		"reg_psr %#x\n",
59 		mc_ccsr_regs->reg_gcr1,
60 		mc_ccsr_regs->reg_gsr,
61 		mc_ccsr_regs->reg_sicbalr,
62 		mc_ccsr_regs->reg_sicbahr,
63 		mc_ccsr_regs->reg_sicapr,
64 		mc_ccsr_regs->reg_mcfbalr,
65 		mc_ccsr_regs->reg_mcfbahr,
66 		mc_ccsr_regs->reg_mcfapr,
67 		mc_ccsr_regs->reg_psr);
68 }
69 #else
70 
71 #define dump_ram_words(title, addr)
72 #define dump_mc_ccsr_regs(mc_ccsr_regs)
73 
74 #endif /* DEBUG */
75 
76 #ifndef CONFIG_SYS_LS_MC_FW_IN_DDR
77 /**
78  * Copying MC firmware or DPL image to DDR
79  */
80 static int mc_copy_image(const char *title,
81 			 u64 image_addr, u32 image_size, u64 mc_ram_addr)
82 {
83 	debug("%s copied to address %p\n", title, (void *)mc_ram_addr);
84 	memcpy((void *)mc_ram_addr, (void *)image_addr, image_size);
85 	flush_dcache_range(mc_ram_addr, mc_ram_addr + image_size);
86 	return 0;
87 }
88 
89 /**
90  * MC firmware FIT image parser checks if the image is in FIT
91  * format, verifies integrity of the image and calculates
92  * raw image address and size values.
93  * Returns 0 on success and a negative errno on error.
94  * task fail.
95  **/
96 int parse_mc_firmware_fit_image(const void **raw_image_addr,
97 				size_t *raw_image_size)
98 {
99 	int format;
100 	void *fit_hdr;
101 	int node_offset;
102 	const void *data;
103 	size_t size;
104 	const char *uname = "firmware";
105 
106 	/* Check if the image is in NOR flash */
107 #ifdef CONFIG_SYS_LS_MC_FW_IN_NOR
108 	fit_hdr = (void *)CONFIG_SYS_LS_MC_FW_ADDR;
109 #else
110 #error "No CONFIG_SYS_LS_MC_FW_IN_xxx defined"
111 #endif
112 
113 	/* Check if Image is in FIT format */
114 	format = genimg_get_format(fit_hdr);
115 
116 	if (format != IMAGE_FORMAT_FIT) {
117 		printf("fsl-mc: ERROR: Bad firmware image (not a FIT image)\n");
118 		return -EINVAL;
119 	}
120 
121 	if (!fit_check_format(fit_hdr)) {
122 		printf("fsl-mc: ERROR: Bad firmware image (bad FIT header)\n");
123 		return -EINVAL;
124 	}
125 
126 	node_offset = fit_image_get_node(fit_hdr, uname);
127 
128 	if (node_offset < 0) {
129 		printf("fsl-mc: ERROR: Bad firmware image (missing subimage)\n");
130 		return -ENOENT;
131 	}
132 
133 	/* Verify MC firmware image */
134 	if (!(fit_image_verify(fit_hdr, node_offset))) {
135 		printf("fsl-mc: ERROR: Bad firmware image (bad CRC)\n");
136 		return -EINVAL;
137 	}
138 
139 	/* Get address and size of raw image */
140 	fit_image_get_data(fit_hdr, node_offset, &data, &size);
141 
142 	*raw_image_addr = data;
143 	*raw_image_size = size;
144 
145 	return 0;
146 }
147 #endif
148 
149 /*
150  * Calculates the values to be used to specify the address range
151  * for the MC private DRAM block, in the MCFBALR/MCFBAHR registers.
152  * It returns the highest 512MB-aligned address within the given
153  * address range, in '*aligned_base_addr', and the number of 256 MiB
154  * blocks in it, in 'num_256mb_blocks'.
155  */
156 static int calculate_mc_private_ram_params(u64 mc_private_ram_start_addr,
157 					   size_t mc_ram_size,
158 					   u64 *aligned_base_addr,
159 					   u8 *num_256mb_blocks)
160 {
161 	u64 addr;
162 	u16 num_blocks;
163 
164 	if (mc_ram_size % MC_RAM_SIZE_ALIGNMENT != 0) {
165 		printf("fsl-mc: ERROR: invalid MC private RAM size (%lu)\n",
166 		       mc_ram_size);
167 		return -EINVAL;
168 	}
169 
170 	num_blocks = mc_ram_size / MC_RAM_SIZE_ALIGNMENT;
171 	if (num_blocks < 1 || num_blocks > 0xff) {
172 		printf("fsl-mc: ERROR: invalid MC private RAM size (%lu)\n",
173 		       mc_ram_size);
174 		return -EINVAL;
175 	}
176 
177 	addr = (mc_private_ram_start_addr + mc_ram_size - 1) &
178 		MC_RAM_BASE_ADDR_ALIGNMENT_MASK;
179 
180 	if (addr < mc_private_ram_start_addr) {
181 		printf("fsl-mc: ERROR: bad start address %#llx\n",
182 		       mc_private_ram_start_addr);
183 		return -EFAULT;
184 	}
185 
186 	*aligned_base_addr = addr;
187 	*num_256mb_blocks = num_blocks;
188 	return 0;
189 }
190 
191 static int mc_fixup_dpc(u64 dpc_addr)
192 {
193 	void *blob = (void *)dpc_addr;
194 	int nodeoffset;
195 
196 	/* delete any existing ICID pools */
197 	nodeoffset = fdt_path_offset(blob, "/resources/icid_pools");
198 	if (fdt_del_node(blob, nodeoffset) < 0)
199 		printf("\nfsl-mc: WARNING: could not delete ICID pool\n");
200 
201 	/* add a new pool */
202 	nodeoffset = fdt_path_offset(blob, "/resources");
203 	if (nodeoffset < 0) {
204 		printf("\nfsl-mc: ERROR: DPC is missing /resources\n");
205 		return -EINVAL;
206 	}
207 	nodeoffset = fdt_add_subnode(blob, nodeoffset, "icid_pools");
208 	nodeoffset = fdt_add_subnode(blob, nodeoffset, "icid_pool@0");
209 	do_fixup_by_path_u32(blob, "/resources/icid_pools/icid_pool@0",
210 			     "base_icid", FSL_DPAA2_STREAM_ID_START, 1);
211 	do_fixup_by_path_u32(blob, "/resources/icid_pools/icid_pool@0",
212 			     "num",
213 			     FSL_DPAA2_STREAM_ID_END -
214 			     FSL_DPAA2_STREAM_ID_START + 1, 1);
215 
216 	flush_dcache_range(dpc_addr, dpc_addr + fdt_totalsize(blob));
217 
218 	return 0;
219 }
220 
221 static int load_mc_dpc(u64 mc_ram_addr, size_t mc_ram_size)
222 {
223 	u64 mc_dpc_offset;
224 #ifndef CONFIG_SYS_LS_MC_DPC_IN_DDR
225 	int error;
226 	void *dpc_fdt_hdr;
227 	int dpc_size;
228 #endif
229 
230 #ifdef CONFIG_SYS_LS_MC_DRAM_DPC_OFFSET
231 	BUILD_BUG_ON((CONFIG_SYS_LS_MC_DRAM_DPC_OFFSET & 0x3) != 0 ||
232 		     CONFIG_SYS_LS_MC_DRAM_DPC_OFFSET > 0xffffffff);
233 
234 	mc_dpc_offset = CONFIG_SYS_LS_MC_DRAM_DPC_OFFSET;
235 #else
236 #error "CONFIG_SYS_LS_MC_DRAM_DPC_OFFSET not defined"
237 #endif
238 
239 	/*
240 	 * Load the MC DPC blob in the MC private DRAM block:
241 	 */
242 #ifdef CONFIG_SYS_LS_MC_DPC_IN_DDR
243 	printf("MC DPC is preloaded to %#llx\n", mc_ram_addr + mc_dpc_offset);
244 #else
245 	/*
246 	 * Get address and size of the DPC blob stored in flash:
247 	 */
248 #ifdef CONFIG_SYS_LS_MC_DPC_IN_NOR
249 	dpc_fdt_hdr = (void *)CONFIG_SYS_LS_MC_DPC_ADDR;
250 #else
251 #error "No CONFIG_SYS_LS_MC_DPC_IN_xxx defined"
252 #endif
253 
254 	error = fdt_check_header(dpc_fdt_hdr);
255 	if (error != 0) {
256 		/*
257 		 * Don't return with error here, since the MC firmware can
258 		 * still boot without a DPC
259 		 */
260 		printf("\nfsl-mc: WARNING: No DPC image found");
261 		return 0;
262 	}
263 
264 	dpc_size = fdt_totalsize(dpc_fdt_hdr);
265 	if (dpc_size > CONFIG_SYS_LS_MC_DPC_MAX_LENGTH) {
266 		printf("\nfsl-mc: ERROR: Bad DPC image (too large: %d)\n",
267 		       dpc_size);
268 		return -EINVAL;
269 	}
270 
271 	mc_copy_image("MC DPC blob",
272 		      (u64)dpc_fdt_hdr, dpc_size, mc_ram_addr + mc_dpc_offset);
273 #endif /* not defined CONFIG_SYS_LS_MC_DPC_IN_DDR */
274 
275 	if (mc_fixup_dpc(mc_ram_addr + mc_dpc_offset))
276 		return -EINVAL;
277 
278 	dump_ram_words("DPC", (void *)(mc_ram_addr + mc_dpc_offset));
279 	return 0;
280 }
281 
282 static int load_mc_dpl(u64 mc_ram_addr, size_t mc_ram_size)
283 {
284 	u64 mc_dpl_offset;
285 #ifndef CONFIG_SYS_LS_MC_DPL_IN_DDR
286 	int error;
287 	void *dpl_fdt_hdr;
288 	int dpl_size;
289 #endif
290 
291 #ifdef CONFIG_SYS_LS_MC_DRAM_DPL_OFFSET
292 	BUILD_BUG_ON((CONFIG_SYS_LS_MC_DRAM_DPL_OFFSET & 0x3) != 0 ||
293 		     CONFIG_SYS_LS_MC_DRAM_DPL_OFFSET > 0xffffffff);
294 
295 	mc_dpl_offset = CONFIG_SYS_LS_MC_DRAM_DPL_OFFSET;
296 #else
297 #error "CONFIG_SYS_LS_MC_DRAM_DPL_OFFSET not defined"
298 #endif
299 
300 	/*
301 	 * Load the MC DPL blob in the MC private DRAM block:
302 	 */
303 #ifdef CONFIG_SYS_LS_MC_DPL_IN_DDR
304 	printf("MC DPL is preloaded to %#llx\n", mc_ram_addr + mc_dpl_offset);
305 #else
306 	/*
307 	 * Get address and size of the DPL blob stored in flash:
308 	 */
309 #ifdef CONFIG_SYS_LS_MC_DPL_IN_NOR
310 	dpl_fdt_hdr = (void *)CONFIG_SYS_LS_MC_DPL_ADDR;
311 #else
312 #error "No CONFIG_SYS_LS_MC_DPL_IN_xxx defined"
313 #endif
314 
315 	error = fdt_check_header(dpl_fdt_hdr);
316 	if (error != 0) {
317 		printf("\nfsl-mc: ERROR: Bad DPL image (bad header)\n");
318 		return error;
319 	}
320 
321 	dpl_size = fdt_totalsize(dpl_fdt_hdr);
322 	if (dpl_size > CONFIG_SYS_LS_MC_DPL_MAX_LENGTH) {
323 		printf("\nfsl-mc: ERROR: Bad DPL image (too large: %d)\n",
324 		       dpl_size);
325 		return -EINVAL;
326 	}
327 
328 	mc_copy_image("MC DPL blob",
329 		      (u64)dpl_fdt_hdr, dpl_size, mc_ram_addr + mc_dpl_offset);
330 #endif /* not defined CONFIG_SYS_LS_MC_DPL_IN_DDR */
331 
332 	dump_ram_words("DPL", (void *)(mc_ram_addr + mc_dpl_offset));
333 	return 0;
334 }
335 
336 /**
337  * Return the MC boot timeout value in milliseconds
338  */
339 static unsigned long get_mc_boot_timeout_ms(void)
340 {
341 	unsigned long timeout_ms = CONFIG_SYS_LS_MC_BOOT_TIMEOUT_MS;
342 
343 	char *timeout_ms_env_var = getenv(MC_BOOT_TIMEOUT_ENV_VAR);
344 
345 	if (timeout_ms_env_var) {
346 		timeout_ms = simple_strtoul(timeout_ms_env_var, NULL, 10);
347 		if (timeout_ms == 0) {
348 			printf("fsl-mc: WARNING: Invalid value for \'"
349 			       MC_BOOT_TIMEOUT_ENV_VAR
350 			       "\' environment variable: %lu\n",
351 			       timeout_ms);
352 
353 			timeout_ms = CONFIG_SYS_LS_MC_BOOT_TIMEOUT_MS;
354 		}
355 	}
356 
357 	return timeout_ms;
358 }
359 
360 #ifdef CONFIG_SYS_LS_MC_AIOP_IMG_IN_NOR
361 static int load_mc_aiop_img(u64 mc_ram_addr, size_t mc_ram_size)
362 {
363 	void *aiop_img;
364 
365 	/*
366 	 * Load the MC AIOP image in the MC private DRAM block:
367 	 */
368 
369 	aiop_img = (void *)CONFIG_SYS_LS_MC_AIOP_IMG_ADDR;
370 	mc_copy_image("MC AIOP image",
371 		      (u64)aiop_img, CONFIG_SYS_LS_MC_AIOP_IMG_MAX_LENGTH,
372 		      mc_ram_addr + CONFIG_SYS_LS_MC_DRAM_AIOP_IMG_OFFSET);
373 
374 	return 0;
375 }
376 #endif
377 static int wait_for_mc(bool booting_mc, u32 *final_reg_gsr)
378 {
379 	u32 reg_gsr;
380 	u32 mc_fw_boot_status;
381 	unsigned long timeout_ms = get_mc_boot_timeout_ms();
382 	struct mc_ccsr_registers __iomem *mc_ccsr_regs = MC_CCSR_BASE_ADDR;
383 
384 	dmb();
385 	assert(timeout_ms > 0);
386 	for (;;) {
387 		udelay(1000);	/* throttle polling */
388 		reg_gsr = in_le32(&mc_ccsr_regs->reg_gsr);
389 		mc_fw_boot_status = (reg_gsr & GSR_FS_MASK);
390 		if (mc_fw_boot_status & 0x1)
391 			break;
392 
393 		timeout_ms--;
394 		if (timeout_ms == 0)
395 			break;
396 	}
397 
398 	if (timeout_ms == 0) {
399 		printf("ERROR: timeout\n");
400 
401 		/* TODO: Get an error status from an MC CCSR register */
402 		return -ETIMEDOUT;
403 	}
404 
405 	if (mc_fw_boot_status != 0x1) {
406 		/*
407 		 * TODO: Identify critical errors from the GSR register's FS
408 		 * field and for those errors, set error to -ENODEV or other
409 		 * appropriate errno, so that the status property is set to
410 		 * failure in the fsl,dprc device tree node.
411 		 */
412 		printf("WARNING: Firmware returned an error (GSR: %#x)\n",
413 		       reg_gsr);
414 	} else {
415 		printf("SUCCESS\n");
416 	}
417 
418 
419 	*final_reg_gsr = reg_gsr;
420 	return 0;
421 }
422 
423 int mc_init(void)
424 {
425 	int error = 0;
426 	int portal_id = 0;
427 	struct mc_ccsr_registers __iomem *mc_ccsr_regs = MC_CCSR_BASE_ADDR;
428 	u64 mc_ram_addr;
429 	u32 reg_gsr;
430 	u32 reg_mcfbalr;
431 #ifndef CONFIG_SYS_LS_MC_FW_IN_DDR
432 	const void *raw_image_addr;
433 	size_t raw_image_size = 0;
434 #endif
435 	struct mc_version mc_ver_info;
436 	u64 mc_ram_aligned_base_addr;
437 	u8 mc_ram_num_256mb_blocks;
438 	size_t mc_ram_size = mc_get_dram_block_size();
439 
440 	/*
441 	 * The MC private DRAM block was already carved at the end of DRAM
442 	 * by board_init_f() using CONFIG_SYS_MEM_TOP_HIDE:
443 	 */
444 	if (gd->bd->bi_dram[1].start) {
445 		mc_ram_addr =
446 			gd->bd->bi_dram[1].start + gd->bd->bi_dram[1].size;
447 	} else {
448 		mc_ram_addr =
449 			gd->bd->bi_dram[0].start + gd->bd->bi_dram[0].size;
450 	}
451 
452 	error = calculate_mc_private_ram_params(mc_ram_addr,
453 						mc_ram_size,
454 						&mc_ram_aligned_base_addr,
455 						&mc_ram_num_256mb_blocks);
456 	if (error != 0)
457 		goto out;
458 
459 	/*
460 	 * Management Complex cores should be held at reset out of POR.
461 	 * U-boot should be the first software to touch MC. To be safe,
462 	 * we reset all cores again by setting GCR1 to 0. It doesn't do
463 	 * anything if they are held at reset. After we setup the firmware
464 	 * we kick off MC by deasserting the reset bit for core 0, and
465 	 * deasserting the reset bits for Command Portal Managers.
466 	 * The stop bits are not touched here. They are used to stop the
467 	 * cores when they are active. Setting stop bits doesn't stop the
468 	 * cores from fetching instructions when they are released from
469 	 * reset.
470 	 */
471 	out_le32(&mc_ccsr_regs->reg_gcr1, 0);
472 	dmb();
473 
474 #ifdef CONFIG_SYS_LS_MC_FW_IN_DDR
475 	printf("MC firmware is preloaded to %#llx\n", mc_ram_addr);
476 #else
477 	error = parse_mc_firmware_fit_image(&raw_image_addr, &raw_image_size);
478 	if (error != 0)
479 		goto out;
480 	/*
481 	 * Load the MC FW at the beginning of the MC private DRAM block:
482 	 */
483 	mc_copy_image("MC Firmware",
484 		      (u64)raw_image_addr, raw_image_size, mc_ram_addr);
485 #endif
486 	dump_ram_words("firmware", (void *)mc_ram_addr);
487 
488 	error = load_mc_dpc(mc_ram_addr, mc_ram_size);
489 	if (error != 0)
490 		goto out;
491 
492 	error = load_mc_dpl(mc_ram_addr, mc_ram_size);
493 	if (error != 0)
494 		goto out;
495 
496 #ifdef CONFIG_SYS_LS_MC_AIOP_IMG_IN_NOR
497 	error = load_mc_aiop_img(mc_ram_addr, mc_ram_size);
498 	if (error != 0)
499 		goto out;
500 #endif
501 
502 	debug("mc_ccsr_regs %p\n", mc_ccsr_regs);
503 	dump_mc_ccsr_regs(mc_ccsr_regs);
504 
505 	/*
506 	 * Tell MC what is the address range of the DRAM block assigned to it:
507 	 */
508 	reg_mcfbalr = (u32)mc_ram_aligned_base_addr |
509 		      (mc_ram_num_256mb_blocks - 1);
510 	out_le32(&mc_ccsr_regs->reg_mcfbalr, reg_mcfbalr);
511 	out_le32(&mc_ccsr_regs->reg_mcfbahr,
512 		 (u32)(mc_ram_aligned_base_addr >> 32));
513 	out_le32(&mc_ccsr_regs->reg_mcfapr, FSL_BYPASS_AMQ);
514 
515 	/*
516 	 * Tell the MC that we want delayed DPL deployment.
517 	 */
518 	out_le32(&mc_ccsr_regs->reg_gsr, 0xDD00);
519 
520 	printf("\nfsl-mc: Booting Management Complex ... ");
521 
522 	/*
523 	 * Deassert reset and release MC core 0 to run
524 	 */
525 	out_le32(&mc_ccsr_regs->reg_gcr1, GCR1_P1_DE_RST | GCR1_M_ALL_DE_RST);
526 	error = wait_for_mc(true, &reg_gsr);
527 	if (error != 0)
528 		goto out;
529 
530 	/*
531 	 * TODO: need to obtain the portal_id for the root container from the
532 	 * DPL
533 	 */
534 	portal_id = 0;
535 
536 	/*
537 	 * Initialize the global default MC portal
538 	 * And check that the MC firmware is responding portal commands:
539 	 */
540 	dflt_mc_io = (struct fsl_mc_io *)malloc(sizeof(struct fsl_mc_io));
541 	if (!dflt_mc_io) {
542 		printf(" No memory: malloc() failed\n");
543 		return -ENOMEM;
544 	}
545 
546 	dflt_mc_io->mmio_regs = SOC_MC_PORTAL_ADDR(portal_id);
547 	debug("Checking access to MC portal of root DPRC container (portal_id %d, portal physical addr %p)\n",
548 	      portal_id, dflt_mc_io->mmio_regs);
549 
550 	error = mc_get_version(dflt_mc_io, MC_CMD_NO_FLAGS, &mc_ver_info);
551 	if (error != 0) {
552 		printf("fsl-mc: ERROR: Firmware version check failed (error: %d)\n",
553 		       error);
554 		goto out;
555 	}
556 
557 	if (MC_VER_MAJOR != mc_ver_info.major) {
558 		printf("fsl-mc: ERROR: Firmware major version mismatch (found: %d, expected: %d)\n",
559 		       mc_ver_info.major, MC_VER_MAJOR);
560 		printf("fsl-mc: Update the Management Complex firmware\n");
561 
562 		error = -ENODEV;
563 		goto out;
564 	}
565 
566 	if (MC_VER_MINOR != mc_ver_info.minor)
567 		printf("fsl-mc: WARNING: Firmware minor version mismatch (found: %d, expected: %d)\n",
568 		       mc_ver_info.minor, MC_VER_MINOR);
569 
570 	printf("fsl-mc: Management Complex booted (version: %d.%d.%d, boot status: %#x)\n",
571 	       mc_ver_info.major, mc_ver_info.minor, mc_ver_info.revision,
572 	       reg_gsr & GSR_FS_MASK);
573 
574 	/*
575 	 * Tell the MC to deploy the DPL:
576 	 */
577 	out_le32(&mc_ccsr_regs->reg_gsr, 0x0);
578 	printf("fsl-mc: Deploying data path layout ... ");
579 	error = wait_for_mc(false, &reg_gsr);
580 	if (error != 0)
581 		goto out;
582 
583 out:
584 	if (error != 0)
585 		mc_boot_status = error;
586 	else
587 		mc_boot_status = 0;
588 
589 	return error;
590 }
591 
592 int get_mc_boot_status(void)
593 {
594 	return mc_boot_status;
595 }
596 
597 /**
598  * Return the actual size of the MC private DRAM block.
599  */
600 unsigned long mc_get_dram_block_size(void)
601 {
602 	unsigned long dram_block_size = CONFIG_SYS_LS_MC_DRAM_BLOCK_MIN_SIZE;
603 
604 	char *dram_block_size_env_var = getenv(MC_MEM_SIZE_ENV_VAR);
605 
606 	if (dram_block_size_env_var) {
607 		dram_block_size = simple_strtoul(dram_block_size_env_var, NULL,
608 						 10);
609 
610 		if (dram_block_size < CONFIG_SYS_LS_MC_DRAM_BLOCK_MIN_SIZE) {
611 			printf("fsl-mc: WARNING: Invalid value for \'"
612 			       MC_MEM_SIZE_ENV_VAR
613 			       "\' environment variable: %lu\n",
614 			       dram_block_size);
615 
616 			dram_block_size = CONFIG_SYS_LS_MC_DRAM_BLOCK_MIN_SIZE;
617 		}
618 	}
619 
620 	return dram_block_size;
621 }
622 
623 int dpio_init(struct dprc_obj_desc obj_desc)
624 {
625 	struct qbman_swp_desc p_des;
626 	struct dpio_attr attr;
627 	int err = 0;
628 
629 	dflt_dpio = (struct fsl_dpio_obj *)malloc(sizeof(struct fsl_dpio_obj));
630 	if (!dflt_dpio) {
631 		printf(" No memory: malloc() failed\n");
632 		return -ENOMEM;
633 	}
634 
635 	dflt_dpio->dpio_id = obj_desc.id;
636 
637 	err = dpio_open(dflt_mc_io, MC_CMD_NO_FLAGS, obj_desc.id,
638 			&dflt_dpio_handle);
639 	if (err) {
640 		printf("dpio_open() failed\n");
641 		goto err_open;
642 	}
643 
644 	err = dpio_get_attributes(dflt_mc_io, MC_CMD_NO_FLAGS,
645 				  dflt_dpio_handle, &attr);
646 	if (err) {
647 		printf("dpio_get_attributes() failed %d\n", err);
648 		goto err_get_attr;
649 	}
650 
651 	err = dpio_enable(dflt_mc_io, MC_CMD_NO_FLAGS, dflt_dpio_handle);
652 	if (err) {
653 		printf("dpio_enable() failed %d\n", err);
654 		goto err_get_enable;
655 	}
656 	debug("ce_offset=0x%llx, ci_offset=0x%llx, portalid=%d, prios=%d\n",
657 	      attr.qbman_portal_ce_offset,
658 	      attr.qbman_portal_ci_offset,
659 	      attr.qbman_portal_id,
660 	      attr.num_priorities);
661 
662 	p_des.cena_bar = (void *)(SOC_QBMAN_PORTALS_BASE_ADDR
663 					+ attr.qbman_portal_ce_offset);
664 	p_des.cinh_bar = (void *)(SOC_QBMAN_PORTALS_BASE_ADDR
665 					+ attr.qbman_portal_ci_offset);
666 
667 	dflt_dpio->sw_portal = qbman_swp_init(&p_des);
668 	if (dflt_dpio->sw_portal == NULL) {
669 		printf("qbman_swp_init() failed\n");
670 		goto err_get_swp_init;
671 	}
672 	return 0;
673 
674 err_get_swp_init:
675 err_get_enable:
676 	dpio_disable(dflt_mc_io, MC_CMD_NO_FLAGS, dflt_dpio_handle);
677 err_get_attr:
678 	dpio_close(dflt_mc_io, MC_CMD_NO_FLAGS, dflt_dpio_handle);
679 err_open:
680 	free(dflt_dpio);
681 	return err;
682 }
683 
684 int dpbp_init(struct dprc_obj_desc obj_desc)
685 {
686 	dflt_dpbp = (struct fsl_dpbp_obj *)malloc(sizeof(struct fsl_dpbp_obj));
687 	if (!dflt_dpbp) {
688 		printf(" No memory: malloc() failed\n");
689 		return -ENOMEM;
690 	}
691 	dflt_dpbp->dpbp_attr.id = obj_desc.id;
692 
693 	return 0;
694 }
695 
696 int dprc_init_container_obj(struct dprc_obj_desc obj_desc, uint16_t dprc_handle)
697 {
698 	int error = 0, state = 0;
699 	struct dprc_endpoint dpni_endpoint, dpmac_endpoint;
700 	if (!strcmp(obj_desc.type, "dpbp")) {
701 		if (!dflt_dpbp) {
702 			error = dpbp_init(obj_desc);
703 			if (error < 0)
704 				printf("dpbp_init failed\n");
705 		}
706 	} else if (!strcmp(obj_desc.type, "dpio")) {
707 		if (!dflt_dpio) {
708 			error = dpio_init(obj_desc);
709 			if (error < 0)
710 				printf("dpio_init failed\n");
711 		}
712 	} else if (!strcmp(obj_desc.type, "dpni")) {
713 		strcpy(dpni_endpoint.type, obj_desc.type);
714 		dpni_endpoint.id = obj_desc.id;
715 		error = dprc_get_connection(dflt_mc_io, MC_CMD_NO_FLAGS,
716 					    dprc_handle, &dpni_endpoint,
717 					    &dpmac_endpoint, &state);
718 		if (!strcmp(dpmac_endpoint.type, "dpmac"))
719 			error = ldpaa_eth_init(obj_desc);
720 		if (error < 0)
721 			printf("ldpaa_eth_init failed\n");
722 	}
723 
724 	return error;
725 }
726 
727 int dprc_scan_container_obj(uint16_t dprc_handle, char *obj_type, int i)
728 {
729 	int error = 0;
730 	struct dprc_obj_desc obj_desc;
731 
732 	memset((void *)&obj_desc, 0x00, sizeof(struct dprc_obj_desc));
733 
734 	error = dprc_get_obj(dflt_mc_io, MC_CMD_NO_FLAGS, dprc_handle,
735 			     i, &obj_desc);
736 	if (error < 0) {
737 		printf("dprc_get_obj(i=%d) failed: %d\n",
738 		       i, error);
739 		return error;
740 	}
741 
742 	if (!strcmp(obj_desc.type, obj_type)) {
743 		debug("Discovered object: type %s, id %d, req %s\n",
744 		      obj_desc.type, obj_desc.id, obj_type);
745 
746 		error = dprc_init_container_obj(obj_desc, dprc_handle);
747 		if (error < 0) {
748 			printf("dprc_init_container_obj(i=%d) failed: %d\n",
749 			       i, error);
750 			return error;
751 		}
752 	}
753 
754 	return error;
755 }
756 
757 int fsl_mc_ldpaa_init(bd_t *bis)
758 {
759 	int i, error = 0;
760 	int dprc_opened = 0, container_id;
761 	int num_child_objects = 0;
762 
763 	error = mc_init();
764 	if (error < 0)
765 		goto error;
766 
767 	error = dprc_get_container_id(dflt_mc_io, MC_CMD_NO_FLAGS,
768 				      &container_id);
769 	if (error < 0) {
770 		printf("dprc_get_container_id() failed: %d\n", error);
771 		goto error;
772 	}
773 
774 	debug("fsl-mc: Container id=0x%x\n", container_id);
775 
776 	error = dprc_open(dflt_mc_io, MC_CMD_NO_FLAGS, container_id,
777 			  &dflt_dprc_handle);
778 	if (error < 0) {
779 		printf("dprc_open() failed: %d\n", error);
780 		goto error;
781 	}
782 	dprc_opened = true;
783 
784 	error = dprc_get_obj_count(dflt_mc_io,
785 				   MC_CMD_NO_FLAGS, dflt_dprc_handle,
786 				   &num_child_objects);
787 	if (error < 0) {
788 		printf("dprc_get_obj_count() failed: %d\n", error);
789 		goto error;
790 	}
791 	debug("Total child in container %d = %d\n", container_id,
792 	      num_child_objects);
793 
794 	if (num_child_objects != 0) {
795 		/*
796 		 * Discover objects currently in the DPRC container in the MC:
797 		 */
798 		for (i = 0; i < num_child_objects; i++)
799 			error = dprc_scan_container_obj(dflt_dprc_handle,
800 							"dpbp", i);
801 
802 		for (i = 0; i < num_child_objects; i++)
803 			error = dprc_scan_container_obj(dflt_dprc_handle,
804 							"dpio", i);
805 
806 		for (i = 0; i < num_child_objects; i++)
807 			error = dprc_scan_container_obj(dflt_dprc_handle,
808 							"dpni", i);
809 	}
810 error:
811 	if (dprc_opened)
812 		dprc_close(dflt_mc_io, MC_CMD_NO_FLAGS, dflt_dprc_handle);
813 
814 	return error;
815 }
816 
817 void fsl_mc_ldpaa_exit(bd_t *bis)
818 {
819 	int err;
820 
821 	if (get_mc_boot_status() == 0) {
822 		err = dpio_disable(dflt_mc_io, MC_CMD_NO_FLAGS,
823 				   dflt_dpio_handle);
824 		if (err < 0) {
825 			printf("dpio_disable() failed: %d\n", err);
826 			return;
827 		}
828 		err = dpio_reset(dflt_mc_io, MC_CMD_NO_FLAGS,
829 				 dflt_dpio_handle);
830 		if (err < 0) {
831 			printf("dpio_reset() failed: %d\n", err);
832 			return;
833 		}
834 		err = dpio_close(dflt_mc_io, MC_CMD_NO_FLAGS,
835 				 dflt_dpio_handle);
836 		if (err < 0) {
837 			printf("dpio_close() failed: %d\n", err);
838 			return;
839 		}
840 
841 		free(dflt_dpio);
842 		free(dflt_dpbp);
843 	}
844 
845 	if (dflt_mc_io)
846 		free(dflt_mc_io);
847 }
848